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IEEE Transactions on Microwave Theory and Techniques

Issue 1 • January 1963

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Displaying Results 1 - 25 of 27
  • [Front cover - Jan. 1963]

    Publication Year: 1963, Page(s):f1 - f2
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    Freely Available from IEEE
  • IRE Transactions on Microwave Theory and Techniques Cumulative index 1953-1956 (Contents)

    Publication Year: 1963, Page(s):i - viii
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    Freely Available from IEEE
  • [Table of contents: January 1963]

    Publication Year: 1963, Page(s): 1
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  • Editorial January,1963

    Publication Year: 1963, Page(s): 2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (86 KB)

    During the past four years these transactions have grown. We now have more issues, more articles, more letters, and more pages per year. In this growth we have not forsaken quality for quantity--the percentage of manuscripts rejected after review has also increased. Whether the present trend will continue in the future is doubtful. Certainly we cannot expect an indefinite number of original contri... View full abstract»

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  • Comment on "A Simple Method for Measuring the Phase Shift and Attenuation Through Active Microwave Networks" [Correspondence]

    Publication Year: 1963, Page(s): 87
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (112 KB)

    In his recent letter on the measurement of phase shift and attenuation of active two ports Alday has submitted material which the author believes should not remain unchallenged. His notion of the addition of power in his system is an erroneous one, so that what he claims to be a measure of attenuation is in fact a measure of a quantity which is not an attenuation at all. It is, as will be seen, a ... View full abstract»

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  • Contributors January,1963

    Publication Year: 1963, Page(s):95 - 96
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  • PTGMTT Membership Roster November, 1962

    Publication Year: 1963, Page(s):97 - 107
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  • Excitation of Plasma Waves in an Unbounded Homogeneous Plasma by a Line Source

    Publication Year: 1963, Page(s):39 - 50
    Cited by:  Papers (21)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (984 KB)

    The radiation characteristics of a line source of magnetic current embedded in a homogeneous electron plasma of infinite extent are investigated for the case in which a uniform magnetic field is impressed externally throughout the medium in the direction of the source. The single-fluid theory of magnetohydrodynamics is employed. A very simple model is assumed for the plasma. Under this assumption,... View full abstract»

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  • Broad-Band Impedance Matching into Dielectric-Filled Waveguides

    Publication Year: 1963, Page(s):36 - 39
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (520 KB)

    The problem of impedance matching between two waveguides filled with different dielectrics is discussed, and the conditions for broad-band matching are determined. Experimental results are presented for standard waveguides matched to guides filled with dielectrics having permittivities ε as high as 100epsi0. Present applications include matching devices for X-band coupled-cavity tr... View full abstract»

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  • Sharp Cutoff Microwave Filters

    Publication Year: 1963, Page(s):30 - 35
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1064 KB)

    A class of sharp cutoff filters using combinations of lumped constant and distributed constant reactance have been analyzed and a test made of one type. The filters are developed in accordance with image parameter theory and are m-derived. Both high-pass and low-pass types are analyzed. The improvements over previous sharp-cutoff image parameter filters are predictable band limits and more predict... View full abstract»

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  • The Synthesis of Coupled Transmission Line All-Pass Networks in Cascades of 1 to n

    Publication Year: 1963, Page(s):23 - 29
    Cited by:  Papers (26)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB)

    A homogeneous coupled line configuration realizing the characteristics of an all-pass network in the distributed network sense is useful for delay equalization in the UHF range. All-pass networks of first and second order are presented, while nth-order networks may be realized directly or built out of first- and second-order networks, analogous to the lumped-constant element network technique. View full abstract»

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  • Loss Measurements of the Beam Waveguide

    Publication Year: 1963, Page(s):18 - 22
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (608 KB)

    The diffraction loss of a new low-loss waveguide for millimeter and shorter wavelength, called the beam waveguide, was measured. The loss measurements were made using a resonator technique. The beam waveguide resonator derived from the beam waveguide consists of confocal paraboloids and is itself a very useful millimeter and sub-millimeter wave circuit component having already found application in... View full abstract»

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  • Traveling-Wave Tube Nanosecond Pulse Generator In 24-Gc Region

    Publication Year: 1963, Page(s):3 - 17
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1544 KB)

    A 24-Gc traveling-wave tube of the type ECL-1180 /24W80 was used for generating nanosecond carrier pulses. The helix of the traveling-wave tube was modulated by a 40-Mc high voltage sine wave. Duration, power and carrier frequency shift of the output RF pulse were examined quantitatively with respect to the modulating voltage. It was found that the delay time of a traveling-wave tube has a large e... View full abstract»

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  • A Microwave Quadruplexer (Correspondence)

    Publication Year: 1963, Page(s):90 - 92
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    In an earlier issue of these transactions Brown and Clark brought an unpublished phenomenon into discussion with their correspondence, "A Unique Solid-State Diplexer:" When a ferromagnetic oxide with small linewidth (yttrium-iron garnet substituted with aluminium in their experiments) is applied to a Y-junction circulator at a frequency lying just below the ferromagnetic resonance then circulation... View full abstract»

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  • Q Measurement of Strongly Coupled Cavities (Correspondence)

    Publication Year: 1963, Page(s):89 - 90
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB)

    The long-line method herein described provides a rapid, simple, and fairly accurate measurement of resonant frequency and loaded bandwidth of a one-port cavity which is tightly coupled to its transmission line. Such tightly coupled cavities are often used as signal couplers in beam-type electron tubes. The cavity itself has a very high unloaded Q, and the beam loads the cavity to give a loaded Q a... View full abstract»

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  • Measurement of Impedance at Frequencies above 300 Mc (Correspondence)

    Publication Year: 1963, Page(s):87 - 88
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    I wonder if any of your readers can help me to find out whether the method described below has ever been proposed in the literature to measure the output impedance of signal sources in the frequency range above 300 Mc. Although it is realized that this method is in close relationship with Chipman's method, to the author's best knowledge it has not been proposed for the measurement of active two-te... View full abstract»

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  • A Simple Formula For Calculating Approximate Values of the First Zeros of a Combination Bessel Function Equation (Correspondence)

    Publication Year: 1963, Page(s):93 - 94
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (248 KB)

    The solution of many problems in microwave theory, particularly those relating to waveguides having curved boundary surfaces, is dependent upon a determination of the zeros of the Bessel function equation Jp(x) Np(kx) - Jp(kx) Np(x) = 0 where Jp and Np are respectively the Bessel functions of the first and second kinds, of order p. ... View full abstract»

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  • A General Power Loss Method for Attenuation of Cavities and Waveguides

    Publication Year: 1963, Page(s):83 - 87
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (456 KB)

    The usual power loss method of evaluating the damping constant and Q of cavities and the attenuation constant of waveguides, as caused by finite wall conductivity, breaks down in the case of degenerate modes and fails to predict the coupling between degenerate modes. By means of variational formulations for the lossy case it is shown how the usual power loss method maybe generalized to treat the c... View full abstract»

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  • Radial-Line Coaxial Filters in the Microwave Region

    Publication Year: 1963, Page(s):50 - 55
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (560 KB)

    Design techniques and a simple empirical formula for the design of band rejection radial-line coaxial filters are presented. The appropriateness of these filters for parametric work is discussed and a particular structure employing these filters to provide a high performance harmonic filter structure for rectangular waveguide is presented. View full abstract»

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  • A Resonant Slope Amplifier Using A Microwave Pump Frequency (Correspondence)

    Publication Year: 1963, Page(s): 92
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (160 KB)

    Resonant slope (or resonant dielectric) amplifiers are of interest because of their high-input impedance and low-frequency capability. The desire for a resonant slope amplifier, and the ready availability of microwave components in the Boeing Applied Physics Laboratory, led to the development of such an amplitier using a microwave pump frequency. View full abstract»

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  • A Practical UHF Multidiscriminator Unit (Correspondence)

    Publication Year: 1963, Page(s):88 - 89
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB)

    The purpose of this communication is to report the design and development of a compact UHF multidiscriminator unit. This device offers possible new applications in the microwave systems. Fig. 1 shows the circuit of a single discriminator. A typical discriminator essentially consists of two capacity-loaded strip-line cavities. The strip-line configuration offers compactness and ease of fabrication.... View full abstract»

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  • Maximum Efficiency of a Two Arm Waveguide Junction (Correspondence)

    Publication Year: 1963, Page(s): 94
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (136 KB)

    It is well-known that the efficiency of a two-arm waveguide junction (2-port) depends upon the reflection coefficient ΓL of the load with which one of the arms is terminated. The efficiency is known to vary between the limits 0 and ηm (maximum efficiency) as ΓL assumes all possible values within the unit circle. However, there seems to be no publish... View full abstract»

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  • Periodic Cylinder Arrays as Transmission Lines

    Publication Year: 1963, Page(s):55 - 61
    Cited by:  Papers (31)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (688 KB)

    Periodic structures of conducting cylinders have been used as radiators (Yagi antennas), and, more recently, as slow-wave lines in traveling-wave tubes and masers. In this report it is shown that a nonresonant structure may have interesting capabilities as an open surface-wave transmission line. By means of a relatively simple matching network, efficient excitation of a surface wave on the periodi... View full abstract»

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  • A Three-Port Network with Constant Phase Difference Properties (Correspondence)

    Publication Year: 1963, Page(s):92 - 93
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB)

    The 90° hybrid and the 180° TEM magic tee can, at least theoretically, be made to work over bandwidths of 10 to 1, and more. The device described is not limited to 90° or 180°. It provides a phase shift between its outputs that is not only constant with frequency, but also capable of being set at any value. In addition, the ratio of the powers delivered to the outputs may be set as... View full abstract»

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  • A New Method for Designing Wide-Band Parametric Amplifiers

    Publication Year: 1963, Page(s):62 - 72
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (880 KB)

    A practical method of designing wide-band parametric amplifiers operated with a circulator is described. For amplifiers with an initially series-tuned varactor, it is possible to find simple relations between Butterworth and Chebyshev responses of lowpass filters and desired gain responses of maximally flat or equalripple type. These relations are shown to hold for most practical varactors. For am... View full abstract»

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Aims & Scope

The IEEE Transactions on Microwave Theory and Techniques focuses on that part of engineering and theory associated with microwave/millimeter-wave components, devices, circuits, and systems involving the generation, modulation, demodulation, control, transmission, and detection of microwave signals. This includes scientific, technical, and industrial, activities. Microwave theory and techniques relates to electromagnetic waves usually in the frequency region between a few MHz and a THz; other spectral regions and wave types are included within the scope of the Society whenever basic microwave theory and techniques can yield useful results. Generally, this occurs in the theory of wave propagation in structures with dimensions comparable to a wavelength, and in the related techniques for analysis and design..

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Meet Our Editors

Editor-in-Chief
Luca Perregrini
luca.perregrini@unipv.it

Editor-in-Chief
Jose Carlos Pedro
edit.tmtt@ua.pt