IRE Transactions on Microwave Theory and Techniques

Issue 5 • September 1962

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Displaying Results 1 - 25 of 29
  • [Front cover - Sep. 1962]

    Publication Year: 1962, Page(s):f1 - f2
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    Freely Available from IEEE
  • Table of contents - September 1962

    Publication Year: 1962, Page(s): 301
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    Freely Available from IEEE
  • Broad-Band TEM Diode Limiting

    Publication Year: 1962, Page(s):302 - 310
    Cited by:  Papers (10)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (936 KB)

    The bandwidths of two types of limiters operating below diode resonance and one type of limiter operating at diode resonance are calculated. A 2.5-Gc base-band limiter was made providing a low power insertion loss of less than 1 db, a limiting threshold of 10 mw, and a high power isolation of greater than 20 db. A 0.9-to 1.3-Gc matched limiter was made having a VSWR of less than 1.2 for all power ... View full abstract»

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  • Improvements in Light Modulators of the Traveling-Wave Type

    Publication Year: 1962, Page(s):311 - 313
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (238 KB)

    Wide-band modulation of light by means of the electro-optic effect requires a traveling-wave type of interaction, with the modulation field traveling with the same phase velocity as the light in some suitably proportioned structure. If electro-optic material is lossy at the modulation frequencies, the modulating field is strongly attenuated with a resultant low-modulation efficiency. A scheme is a... View full abstract»

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  • Electromagnetic Waves in Waveguides with Wall Impedance

    Publication Year: 1962, Page(s):314 - 320
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (524 KB)

    A variational expression for the propagation constant of the waves in waveguides with inhomogeneous media and with wall impedance is presented. Using this expression, the shift of the propagation constant due to the wall impedance is calculated. It is also clarified how the removal of degeneracy takes place. Then the same problem is discussed using another approach, a perturbation method. The resu... View full abstract»

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  • A Three-Cavity Circularly Polarized Waveguide Directional Filter Yielding a Maximally Flat Response

    Publication Year: 1962, Page(s):321 - 328
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (704 KB)

    A directional filter is a completely matched four-port device which exhibits directional properties and a filter-like frequency characteristic. This paper extends work previously done on a single-cavity narrow-band circularly polarized waveguide directional filter to the case of three cavities connected in cascade with an overall bandwidth greater than 1 per cent. Analysis of the filter leads to a... View full abstract»

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  • Power Transmission Through General Uniform Waveguides

    Publication Year: 1962, Page(s):328 - 331
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (351 KB)

    The problem of transmitting electromagnetic power through a dissipative waveguide in an optimal fashion is examined. At any frequency the problem is reduced to a weighted eigenvalue problem in which the maximum efficiency appears as the eigenvalue and the required excitation is specified by the corresponding eigenvector. Numerical results are presented. View full abstract»

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  • Further Considerations on Fabry-Perot Type Resonators

    Publication Year: 1962, Page(s):331 - 339
    Cited by:  Papers (29)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (943 KB)

    An integral equation valid for fabry-perot type resonators with reflectors of arbitrary curvature and spacing is derived, and equations for the planar, confocal, and spherical geometries are considered further. A numerical iteration method is used to solve the equations, and the properties of the various solutions for the different kernels are discussed. Results show that the confocal type has the... View full abstract»

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  • Stepped-Impedance Transformers and Filter Prototypes

    Publication Year: 1962, Page(s):339 - 359
    Cited by:  Papers (44)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1950 KB)

    Quarter-wave transformers are widely used to obtain an impedance match within a specified tolerance between two lines of different characteristic impedances over a specified frequency band. This paper gives design formulas and extensive tables of designs, most of which were especially derived so that an integrated account could be presented for the first time. Numerous examples are given. Only hom... View full abstract»

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  • In-Line Waveguide Calorimeter For High-Power Measurement

    Publication Year: 1962, Page(s):359 - 366
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1075 KB)

    The static in-line calorimeter measures the temperature rise in the walls of a waveguide caused by the attenuation of microwave power flowing through the waveguide. It is simple and inexpensive and can be constructed so that it will fit on waveguide already existing in a microwave system. The device should be reliable because it uses no active circuitry. In addition, few mechanical problems are en... View full abstract»

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  • Scattering of Surface Waves by Discontinuities on a Unidirectionally Conducting Screen

    Publication Year: 1962, Page(s):367 - 375
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (792 KB)

    It is shown that a plane screen consisting of closely-spaced parallel wires which are separated from one another and which are such that the radius of the wires and the spacing between them are small in comparison to wavelength, can support a surface wave, the spread of whose field components depends only on the angle which the direction of propagation makes with the direction of the wires. The pr... View full abstract»

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  • Surface Waves on Radially Inhomogeneous Cylinders

    Publication Year: 1962, Page(s):375 - 382
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (863 KB)

    A characteristic equation and a cutoff equation are derived for higher order surface-wave modes on lossless isotropic cylinders with arbitrary radial permittivity variation. The derivation, based on the use of the fundamental matrix of a set of differential equations, reduces analytical work and results in expressions well suited for digital computer evaluation of surface-wave eigenvalues and mode... View full abstract»

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  • A Plasma Controlled Directional Coupler

    Publication Year: 1962, Page(s):383 - 389
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (898 KB)

    A new type of waveguide directional coupler is described which has a discharge tube as the coupling element in the common narrow wall between the guides. The use of the discharge tube allows continuous control of the amount of coupling between the guides. The theory of the coupler is given with curves for designing such a coupler. The paper describes the results obtained from a 3-db coupler. Measu... View full abstract»

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  • Couplings in Direct-Coupled Waveguide Band-Pass Filters (Correspondence)

    Publication Year: 1962, Page(s):389 - 390
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (151 KB)

    Couplings in direct-coupled waveguide band-pass filters can be described in two different ways. Cohn describes couplings in terms of normalized susceptances of the coupling circuit elements (e. g., posts or irises ). Dishal describes interstage couplings in terms of a coefficient of coupling between adjacent resonators. Although Cohn has briefly mentioned coefficients of coupling in his paper, the... View full abstract»

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  • Contraphaseshifter (Correspondence)

    Publication Year: 1962, Page(s):390 - 391
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (215 KB)

    A novel combination of ring hybrid and variable power divider is shown to result in a three-terminal device having a single matched input and two outputs whose relative phase can be continuously varied independent of their amplitude. View full abstract»

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  • A Beam Plasma Surface Wave Interaction (Correspondence)

    Publication Year: 1962, Page(s):391 - 392
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (239 KB)

    This communication describes the interaction of an electron beam with a beam-generated hydrogen plasma. As a result of this interaction the dc energy of the electron beam is converted into microwave energy in the plasma. View full abstract»

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  • A Double-Prism Attenuator For Millimeter Waves (Correspondence)

    Publication Year: 1962, Page(s):392 - 393
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (291 KB)

    A double-prism attenuator, similar to the one built by Garnham for use at 35 Gc, was built in the laboratory for use at 100 Gc and above. This attenuator utilizes the well-known fact that a wave which is incident on the interface between two dielectrics at an angle greater than the critical angle is totally reflected. If the wave is in a medium of index of refraction n and the other medium is free... View full abstract»

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  • Application of Sampling Theorem to the Synthesis of Transmission Line Tapers and Antenna Radiation Patterns (Correspondence)

    Publication Year: 1962, Page(s):393 - 394
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (319 KB)

    In this note it is demonstrated how the sampling theorem may be used to reduce the problems of transmission line taper synthesis and antenna aperture field synthesis to that of optimizing a polynomial. In both cases the problem may be stated mathematically in the following form: find the function g(x) which is zero outside the domain - π≤x≤π that will yield a desired f(u) where f(u) is... View full abstract»

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  • A Proposed Lossless Electronic Phase Shifter (Correspondence)

    Publication Year: 1962, Page(s): 394
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (136 KB)

    Modern antenna array designs frequently require the use of high-speed, electronically controlled phase shifters. The use of low-noise receivers now becoming available also dictates the requirement that such phase shifters have zero, or very small, losses. The use of parametric devices as active elements in such phase shifters is particularly attractive because of their high degree of reliability, ... View full abstract»

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  • Oversize Waveguide Directional Coupler (Correspondence)

    Publication Year: 1962, Page(s):394 - 395
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (298 KB)

    Oversize rectangular waveguide using TE10 mode propagation has been suggested as a means of reducing the attenuation and fabrication difficulties of transmission lines and components for frequencies above 40 Gc. Experiments on straight sections of such transmission lines show that it is superior to pure optical transmission for short distances. View full abstract»

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  • Resonances in a Cylindrical Plasma Column (Correspondence)

    Publication Year: 1962, Page(s):395 - 396
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (278 KB)

    A plasma column irradiated by an electromagnetic wave which has its electric vector and direction of propagation perpendicular to the axis of the tube exhibits Tonks-Dattner resonances in its absorption pattern when the electron density in the column is varied. The pattern consists of a main resonance and a number of less pronounced subsidiary resonances at currents corresponding to electron densi... View full abstract»

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  • Proposed Experiment for Eliciting Multiple Resonances from the Ionosphere (Correspondence)

    Publication Year: 1962, Page(s):396 - 397
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (245 KB)

    In the theory of Herlofson only one resonance is predicted for a cylindrical plasma column irradiated by an electromagnetic wave having both its direction of propagation and electric field E perpendicular to the axis of the column, a mode which he designates as sagittal. Herlofson treats the problem by solving the wave equation in cylindrical coordinates and then imposing boundary conditions to fi... View full abstract»

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  • Stability Criteria for Tunnel-Diode Amplifiers (Correspondence)

    Publication Year: 1962, Page(s):397 - 398
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (277 KB)

    A tunnel-diode amplifier is stable when the amplifier network is reduced to an arbitrary single loop and the equation given by the sum of the impedances around this loop equal to zero [ΣZ(P)=0 where p= γ +jω ] has no solution in the right-half plane (γ>0). This is equivalent to the requirement that the system determinant shall have no zeros in the right-half plane. Sever... View full abstract»

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  • On "An Impedance Transformation Method for Finding The Load Impedance of a Two-Port Network" (Correspondence)

    Publication Year: 1962, Page(s):398 - 399
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (315 KB)

    The above article begins with ten extensive footnotes, but the authors omit the one reference that discusses their problem: Deschamps' "Hyperbolic Protractor." The undersigned writers concede that the method of Mittra and King is different, but it is more complicated and less useful than that of Deschamps. View full abstract»

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  • On "A Solid-State Microwave Source from Reactance-Diode Harmonic Generators" (Correspondence)

    Publication Year: 1962, Page(s):399 - 401
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (401 KB)

    In a recent paper, Hyltin and Kotzebue have given some interesting formulas about the maximum efficiency of reactance-diode harmonic generators. It may be interesting to submit to the attention of the authors some considerations about their theoretical analysis. View full abstract»

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Aims & Scope

This Transactions ceased publication in 1962. The current retitled publication is IEEE Transactions on Microwave Theory and Techniques.

Full Aims & Scope