Proceedings of the IEE - Part B: Radio and Electronic Engineering

Includes the top 50 most frequently accessed documents for this publication according to the usage statistics for the month of

  • Surface roughness and attenuation of precision-drawn, chemically polished, electropolished, electroplated and electroformed waveguides

    Publication Year: 1955, Page(s):251 - 259
    Cited by:  Papers (5)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1655 KB)

    Detailed examinations of certain 3cm waveguides have shown that the surface finish of precision-drawn tubing as manufactured at present is quite adequate for most applications. Such surfaces, however, may be improved, if desired, by careful chemical or electrolytic polishing or electroplating in bright baths under closely controlled conditions. Some information on the surface finish of copper guid... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The properties of artificial dielectrics at centimetre wavelengths

    Publication Year: 1955, Page(s):11 - 16
    Cited by:  Papers (13)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (830 KB)

    The properties of an artificial dielectric at centimetre wavelengths are compared with those of a solid material, and the possible definitions of the refractive index and the wave impedance are examined. It is concluded that the most appropriate definition of the latter is in terms of the reflection coefficient at an interface between the artificial dielectric and free space. The reactive fields w... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A multi-input analogue adder for use in a fast binary multiplier

    Publication Year: 1956, Page(s):515 - 519
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (556 KB)

    The paper describes the design and mode of operation of an analogue adding system which has many input and output channels. When several of the input channels are simultaneously excited, an output indication is provided on a single output channel, the particular one selected depending on the total number of input channels excited at that time. In this instance, the device has been used in the desi... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Saturation magnetization of some ferrimagnetic oxides with hexagonal crystal structures

    Publication Year: 1957, Page(s):255 - 260
    Cited by:  Papers (10)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (773 KB)

    Anderson's treatment of super-exchange yields a qualitative rule for the dependence of interaction on angle Me¿O¿Me. Using this rule, and assuming a longer distance to lead to a weaker interaction, low-temperature saturation magnetizations for ferrimagnetic oxides with known crystal structures can often be predicted. The results obtained for some of the materials described in Ref. 1, i.e. Ba2MeI... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A survey of the theory and applications of ferrites at microwave frequencies

    Publication Year: 1957, Page(s):267 - 282
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (2361 KB)

    The paper opens with a brief review of gyromagnetic media in general, followed by a more detailed description of the microwave behaviour of a ferromagnetic medium, of which ferrites form a suitable class of material. The general physical properties of ferrites are outlined briefly, together with a description of several of the mechanisms to account for the dispersion which occurs in their r.f. per... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Measurements of the effect of rain, snow and fogs on 8.6 mm radar echoes

    Publication Year: 1955, Page(s):709 - 714
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (830 KB)

    A radar set has been used to investigate the propagation of 8.6 mm radiation through various types of weather. Measurements have been made of the attenuation caused by the precipitation particles and of the intensity of radiation scattered back. No attempt has been made to correlate the results obtained with drop-size distribution, but the results are plotted against precipitation rate. The attenu... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Coupled transmission lines as symmetrical directional couplers

    Publication Year: 1955, Page(s):383 - 392
    Cited by:  Papers (15)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1510 KB)

    If two similar unbalanced transmission lines are coupled together by sharing a common outer conductor for part of their length, so as to form a 3-conductor line, they constitute a symmetrical directional coupler. The output ratio of this varies sinusoidally with frequency, being greatest for lengths equal to an odd number of quarter-wavelengths; the characteristic impedance is independent of frequ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Non-reciprocal network theory applied to ferrite microwave devices

    Publication Year: 1957, Page(s):316 - 319
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (333 KB)

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A new type of slow-wave structure for millimetre wavelengths

    Publication Year: 1958, Page(s):737 - 745
    Cited by:  Papers (7)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (994 KB)

    A new type of narrow-band slow-wave structure, consisting of two adjacent planar arrays of conductors, is described. An approximate dispersion equation based on a simplified model is derived, and the numerical results are shown to be in good agreement with experiment. The circuit has been used in an X-band backward-wave oscillator, covering a 10%frequency band. The geometrical arrangement of the c... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Broad-band slot-coupled microstrip directional couplers

    Publication Year: 1958, Page(s):147 - 154
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (954 KB)

    The paper describes a new design technique for directional couplers in a printed strip-above-ground microwave transmission system (microstrip). The two transmission lines are mounted back to back and coupled through slots in the common ground plane. The coupling factors of isolated slots of different shape are calculated and are found to be in good agreement with measured results. A specific desig... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The application of the Hall effect in a semi-conductor to the measurement of power in an electromagnetic field

    Publication Year: 1955, Page(s):179 - 185
    Cited by:  Papers (4)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1012 KB)

    The paper deals with the application of the Hall effect in a semi-conductor, like germanium, to the measurement of power transmitted along a line or a hollow metal waveguide. It is shown that the expression for the instantaneous value of the Hall e.m.f. generated in a small piece of semi-conductor erected in an electromagnetic field is of exactly the same form as the expression for the instantaneo... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Standard waveguides and couplings for microwave equipment

    Publication Year: 1955, Page(s):493 - 499
    Cited by:  Papers (5)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1368 KB)

    An account is given of the development and standardization of waveguides, couplings and adaptors for microwave equipment. Whilst these items were primarily intended for use in Service electronic equipment, they have proved to be of considerable use in commercial applications. The appropriate sizes of waveguide to cover the whole microwave spectrum are discussed, and reasons are given for the stand... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Discussion on 'Computer input and output, including analogue-digital conversion'

    Publication Year: 1956, Page(s):447 - 449
    IEEE is not the copyright holder of this material | |PDF file iconPDF (462 KB)
    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Non-uniform transmission lines as impedance transformers

    Publication Year: 1956, Page(s):166 - 172
    Cited by:  Papers (7)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (703 KB)

    The equation for the reflection coefficient at one end of a non-uniform transmission line matched at the other end is considered, and an approximate form of solution is suggested which enables such lines to be designed for optimum performance as matching sections. A number of examples are calculated, and the results are compared with lines previously described in literature. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Design of microwave filters with quarter-wave couplings

    Publication Year: 1956, Page(s):173 - 177
    Cited by:  Papers (11)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (618 KB)

    Resonator diaphragms are constructed from triplets of inductive posts, whose spacings and radii are chosen to prevent the generation of the first five non-propagating modes. This is sufficient to ensure negligible coupling at quarter-wave separation. Measurements on filters at 4000 Mc/s indicate a satisfactory performance. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The solution of non-linear heat-conduction problems on the Pilot Ace

    Publication Year: 1956, Page(s):158 - 162
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (502 KB)

    A method, suitable for use on an automatic computer, is developed for the solution of the heat-conduction equation. The treatment of latent heat is discussed and the method applied to a simple case. An Ace programme is briefly described, and the results obtained for a typical experimental case are given in graphical form. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The programming strategy used with the Manchester University Mark I computer

    Publication Year: 1956, Page(s):151 - 157
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1012 KB)

    The paper gives an account of the programming strategy developed for use with the University of Manchester electronic computer Mark I, a typical 2-level storage machine of which a brief description is included. The topics dealt with include: the method of storing and calling in routines; the representation of instructions outside the machine (tracing the reasons for the use of a teleprint or scale... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A comparison of the noise, and random frequency and amplitude fluctuations in different types of oscillator

    Publication Year: 1956, Page(s):182 - 189
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (967 KB)

    No oscillator gives a pure sine-wave output. There is always some random noise present in the oscillator circuit, if only that due to thermal agitation. Because of this, noise will appear in the output even if steps are taken to stabilize the output amplitude. Also, the output power is spread over a finite frequency band, and not concentrated at a single frequency. The nature of the random fluctua... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On the measurement of attenuation in ultrasonic delay lines

    Publication Year: 1956, Page(s):773 - 780
    Cited by:  Papers (6)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (998 KB)

    A theoretical and experimental study has been made of the effects of coupling films on the propagation of compressional waves from a transducer to a solid medium. In practice it has been found that `wringing¿ the transducer to the specimen with oil as a coupling medium produces a film of non-uniform thickness. Although the variations in thickness are of the order of a wavelength of light, these v... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A study of commercial time lost on transatlantic radio circuits due to disturbed ionospheric conditions

    Publication Year: 1955, Page(s):505 - 512
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1246 KB)

    An analysis has been made of the time lost on certain radio circuits incoming to the United Kingdom from Montreal and New York during the period 1942¿1952. The results have been examined in relation to the variations in solar and magnetic activity with a view to estimating the degree of interruption likely to be experienced on transatlantic circuits during the next few years. It is concluded that... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Some properties of circular waveguides containing ferrites

    Publication Year: 1957, Page(s):286 - 295
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1295 KB)

    The paper describes some results of an experimental investigation of the propagation behaviour of circular waveguides containing longitudinally magnetized ferrite rods. Measurements have been made at 9.250kMc/s using nickel¿zinc ferrite. Reasonable correlation is obtained between experimental and theoretical results for the limiting cases of the thin ferrite rod and the waveguide completely fille... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Magnetocrystalline anisotropy in cobalt-substituted magnetite single crystals

    Publication Year: 1957, Page(s):238 - 244
    Cited by:  Papers (6)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (943 KB)

    The growth of single crystals corresponding to x=0 (high-purity magnetite), x = 0.01 and x = 0.04 in the composition series CoxFe3-xO4 is described. First- and second-order anisotropy constants of these crystals are determined by the torque method over the temperature range 120¿450°K. The substitution of small amounts of cobalt for iron is found to add a positive contribution to K1 and a negativ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Some applications of ferrites to microwave directional couplers, switches, and cavity filters

    Publication Year: 1957, Page(s):388 - 394
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (963 KB)

    The paper reviews some of the research and development projects which led to the designs for a ferrite directional coupler, a ferrite microwave switch and ferrite-loaded cavity filters. Directional coupling is accomplished at microwave frequencies by extending a ferrite cylinder through the common wall of two rectangular waveguides joined at the broad face. Experimental data for coupling and direc... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Survey of recent developments in marine radar

    Publication Year: 1958, Page(s):380 - 384
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (824 KB)

    The survey is of the design of the various parts of a marine radar, and suggestions are made for the future development of radars of much higher discrimination in order that the aspect of other vessels may be seen by the aspect of their echoes in relation to the heading mark of the ship. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An investigation of periodic rod structures for Yagi aerials

    Publication Year: 1958, Page(s):38 - 44
    Cited by:  Papers (7)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (844 KB)

    The periodic structure of conducting rods, normally used for Yagi-type aerials, is investigated from the point of view of a guide for surface waves. In a series of resonator experiments it is found that a non-radiating plane surface wave of the HE11-mode may be guided along the structure, and that radiation occurs only from a discontinuity. The guiding effect is found to exist only where the rod l... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An application of the spatial-harmonic wave on a large-diameter helix

    Publication Year: 1958, Page(s):412 - 414
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (394 KB)

    The paper describes the characteristics of the large-diameter helix as a travelling-wave tube and gives experimental results obtained on a scale model operating at 4 Gc/s. For a helix whose circumference is greater than one wavelength (2¿a/¿0> 1), the first spatial-harmonic wave operates as a forward wave and is equivalent, as regards the phase velocity and coupling impedance, to the fundamen... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Boron trifluoride proportional counters

    Publication Year: 1958, Page(s):357 - 365
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1429 KB)

    The design and manufacture of a variety of types of boron-trifluoride proportional counter used by the U.K.A.E.A. are described. One basic design and method of assembly is used for the manufacture of counters of sizes ranging from ¿ in diameter and a few inches long to 2 in diameter and several feet long. The technique of manufacture is suitable for large-scale production, and consistently good e... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An approach to the design of constant-resistance amplitude equalizer networks

    Publication Year: 1958, Page(s):185 - 189
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (565 KB)

    It is often desirable to correct or to adjust the amplitude/frequency response of a network to meet certain stated requirements. Although it is usually not difficult to calculate the insertion loss of a correcting network, the inverse is rather more difficult. The paper suggests a method of designing constant-resistance amplitude equalizers to give a desired slope over the working range concerned.... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Re-entrant transmission-line filter using printed conductors

    Publication Year: 1958, Page(s):173 - 179
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (943 KB)

    The re-entrant line filter section first described by Alford in 1939 is employed. The theory of these filters is expanded, and a novel procedure is described for the design of microwave low-pass filters possessing a relatively high stop-band insertion loss over bandwidths of 3 : 1 or more. The filter may conveniently be realized in strip-transmission-line form utilizing printed-circuit techniques.... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The application of printed-circuit techniques to the design of microwave components

    Publication Year: 1958, Page(s):155 - 172
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (2666 KB)

    A brief résumé is given of the basic theory of strip transmission lines including unwanted effects such as spurious mode transmission and radiation. A variety of materials and different printed-circuit techniques have been tried and the relative merits of each are discussed. A technique of measurement is described and details are given of two pieces of specially developed measuring equipment in ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The launching of radial cylindrical surface waves by a circumferential slot

    Publication Year: 1959, Page(s):123 - 128
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (633 KB)

    The efficiency with which radial cylindrical surface waves may be launched by a circumferential slot is investigated theoretically and experimentally. The radius of the slot has been found to affect the launching efficiency very little. An optimum efficiency of about 68% is obtainable with a slot of 2cm radius above a 58-ohm reactive surface. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • High-temperature properties of tungsten which influence filament temperatures, lives and thermionic-emission densities

    Publication Year: 1957, Page(s):153 - 157
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (725 KB)

    A literature search has shown which data are most reliable for use in calculations of the lives of tungsten filaments run at very high temperatures. Some errors and their possible causes have been found in commonly-used data. Filament lives have been calculated and measured for a variety of electrical supply conditions in a range of high temperatures. The fractional thinning at burn-out can be fou... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Frequency synchronization of an X-band reflex klystron

    Publication Year: 1958, Page(s):944 - 951
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (857 KB)

    The paper gives results obtained in synchronizing an X-band reflex klystron oscillator to a source of power at a similar frequency. The power is fed through an isolator to the oscillator so that synchronization is attempted in one direction only. The results show the variation of control range and power output with various parameters of the system. A number of applications of the phenomenon are di... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Guglielmo Marconi and communication beyond the horizon: a short historical note

    Publication Year: 1958, Page(s):79 - 83
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1440 KB)

    The paper describes experiments, carried out between 1928 and 1936 by Guglielmo Marconi, which demonstrated that transmission beyond the horizon by means of microwaves was practicable. Further more the influence of tropospheric mechanisms on radio-wave propagation was recognized by him at the time. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Ultra-high-frequency power amplifiers

    Publication Year: 1958, Page(s):513 - 522
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1752 KB)

    The paper examines a few of the problems associated with the design and construction of power amplifiers operating in the frequency band 300¿3000 Mc/s. Various types of amplifier are considered in turn, and the advantages and disadvantages of each particular class are examined in some detail. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A novel, high-accuracy circuit for the measurement of impedance in the a.f., r.f. and v.h.f. ranges

    Publication Year: 1958, Page(s):505 - 510
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (514 KB)

    The paper describes a high-accuracy measuring circuit suitable for frequencies from 50c/s to v.h.f. There are two branches in the circuit, one of which contains the unknown impedance. The two branches are fed in phase opposition from the secondaries of two mutual inductors or two transformers. Due to the feeding in opposition of the two branches, the transfer impedances are very simple, no negativ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Advances in ground radar for civil aviation

    Publication Year: 1958, Page(s):370 - 379
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1852 KB)

    The need for ground radar for civil aviation is discussed, and also its growth during the last ten years, first in the terminal areas, and more recently to assist control on the airways. Typical radars designed for civil use are next described and possible ways of meeting future requirements. Advances in techniques are then mentioned, and it is shown that the problems of radar data generation and ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Production and focusing of high-density sheet beams

    Publication Year: 1958
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (156 KB)

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Propagation measurements at 3480 Mc/s over a 173-mile path

    Publication Year: 1958, Page(s):128 - 142
    Cited by:  Papers (11)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (2317 KB)

    The paper presents an account of an experimental study of beyond-the horizon radio scatter propagation at a frequency of 3480 Mc/s over a path of 173 statute miles between Start Point and Wembley. Details of the path and brief details of the transmitting, receiving and recording equipment are given. Propagation data, collected from May, 1956, to April, 1957, are presented. The performance of the l... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Transverse film bolometers for the measurement of power in rectangular waveguides

    Publication Year: 1958, Page(s):77 - 80
    Cited by:  Papers (10)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (598 KB)

    The paper describes a simple standard technique, using thin metallic films sputtered on mica, for the direct measurement of powers in the range 1¿100 mW. The experiments were carried out at a frequency of 10 Gc/s (wavelength 3cm), but the methods used are of general application in rectangular waveguides. The absorbing films consisted of a platinum deposit, of the order of 10¿6cm thick, on a mica... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The use of dielectric materials to enhance the reflectivity of a surface at microwave frequencies

    Publication Year: 1958, Page(s):73 - 76
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (599 KB)

    The padding of a metal surface by one or more layers of a dielectric material is examined, and it is shown that an improvement in reflectivity can be obtained provided that the loss factor (tan ¿) of the dielectric is small enough. For most materials the gain is approximately proportional to ¿¿/tan ¿, where ¿ is the dielectric constant. Since the reflectivity of a metal diminishes as the freq... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The attenuation of radio waves reflected from the E-region of the ionosphere

    Publication Year: 1958, Page(s):22 - 26
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (739 KB)

    Measurements of the absorption of waves travelling between Slough and Inverness (740 km), and reflected once from the E-region during the process, are compared with similar measurements made simultaneously for vertical incidence at Slough. The absorption over the oblique path, calculated by Martyn's absorption theorem from the value obtained at vertical incidence, was found to be much too low. App... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A note on the Fourier series representation of the dispersion curves for circular iris-loaded waveguides

    Publication Year: 1958, Page(s):69 - 72
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (428 KB)

    The dispersion curve for the lowest pass band in a uniform corrugated circular waveguide, such as is used in travelling-wave linear accelerators, may be expressed as a Fourier series of period 2¿/(corrugation pitch). Under the slowest conditions of convergence in the waveguides investigated, an accuracy of ±1 part in 15000 in the determination of frequency corresponding to a given phase velocity... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The coaxial-line diode: a rectifier of microwaves

    Publication Year: 1958, Page(s):886 - 889
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (493 KB)

    The coaxial-line configuration of the diode is shown to provide a non-linear radial field and a long interaction path. These two features contribute to the relatively high detection efficiency of the device when operating at high microwave powers. At the signal levels at which it is usefully employed the low-signal theory does not apply. The theory which is discussed shows that electronic transit ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The choice of beam and coupling parameters for broad-band klystrons

    Publication Year: 1958, Page(s):839 - 842
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (706 KB)

    The quantity M2G0(R/Q) for the output cavity is a useful figure of merit for a broad-band power klystron since it is proportional to the product of bandwidth and efficiency. In this expression M is the effective gap-coupling factor, G0 is the d.c. beam conductance and (R/Q) is the ratio of the shunt impedance of the cavity to its Q-factor. The quantity has been evaluated for a commonly used shape ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Doppler navigation

    Publication Year: 1958, Page(s):235 - 247
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1889 KB)

    This paper describes a self-contained radio navigation aid for aircraft which works by virtue of the Doppler principle. Ground speed and drift angle are determined by measuring the Doppler shifts that occur when signals transmitted from a moving aircraft are reflected back from the ground along two or more beams. Ground speed with an error of less than 0.2% and drift angle with an error of less th... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Power limitations in helix travelling-wave tubes and the application of fluid cooling

    Publication Year: 1958, Page(s):446 - 453
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1022 KB)

    Scaling equations are developed for broad-band helix travelling-wave amplifiers and are used to study the limitations due to cathode current density, beam interception and attenuation with cooling by radiation and conduction. The latter is more efficient but must be treated with reserve at the shorter wavelengths, owing to the added attenuation. By using the form of a theoretical equation to obtai... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A structure, using resonant coupling elements, suitable for a high-power travelling-wave tube

    Publication Year: 1958, Page(s):719 - 726
    Cited by:  Papers (4)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (1019 KB)

    In the field of pulsed amplifiers for the megawatt output-power level, having high average power and 20% bandwidth at S-band frequencies, a promising structure seems to be a loop-coupled disc-loaded waveguide. The paper describes some of the properties of such structures. Of a number of possible pass-bands the two of principal interest are those of lowest frequency. If the loops are reversed, i.e.... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Frequency pushing in crossed-field oscillators. A comparison between the c.w. magnetron and the magnetron-type backward-wave oscillator

    Publication Year: 1958, Page(s):525 - 528
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (802 KB)

    Experimental results showing the effect of anode current on the frequency of crossed-field oscillators are presented. The results for M-type backward-wave oscillators are shown to be qualitatively explained simply by taking into account the potential deresion due to the presence of the electron beam. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The magnitude of the locking signal for backward-wave oscillators

    Publication Year: 1958, Page(s):588 - 593
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (746 KB)

    A knowledge of the magnitude of the smallest signal which will lock the phase of a backward-wave oscillator is of importance in the design of multiple slow-wave structures. The paper obtains an estimate of this magnitude using linear theory. The results are shown to be in satisfactory accord with experiments carried out on a helix-type backward-wave oscillator. The method permits the estimation of... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.

Aims & Scope

Published from 1955-1958, the Proceedings of the IEE - Part B: Radio and Electronic Engineering included all specialized papers on radio and electronic engineering (including communication engineering) that were presented to the Institution. Also included were the formal proceedings of the Radio Section of the Institution and the papers which were read before that Section, together with discussions on them.

Full Aims & Scope