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IRE Transactions on Antennas and Propagation

Issue 1 • Date January 1960

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Displaying Results 1 - 25 of 26
  • [Front cover and table of contents]

    Publication Year: 1960, Page(s): 0
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    Freely Available from IEEE
  • Back scattering cross sections of cylindrical wires of finite conductivity

    Publication Year: 1960, Page(s):1 - 7
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (460 KB)

    The back scattering cross sections of fine wires, taking the effect of finite conductivity into account, have been found. The variational procedure is used to find theoretical expressions for the cross section and it is concluded that the zeroth and the first-order solutions of Tai converge to one another with the addition of loss, in the region of first resonance. For fine copper, platinum and bi... View full abstract»

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  • A multipurpose radar target

    Publication Year: 1960, Page(s):7 - 10
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB)

    Consideration of methods of simulating a moving target by making a mechanically stationary target appear [to an MTI (Moving Target Indicator)-equipped radar] to be moving resulted in the use of crystals as switching elements in a low-voltage low-energy battery-powered device. Extending the use of these switching elements results in a target that is visible to any polarization. By applying these co... View full abstract»

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  • On uniform and linearly tapered long yagi antennas

    Publication Year: 1960, Page(s):11 - 17
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (740 KB)

    Traveling-wave analysis of long Yagi antennas is reviewed briefly. The method of designing a Yagi antenna from this viewpoint is discussed and some experimental results are given in order to verify the analysis. A long Yagi antenna, when designed according to the Hansen and Woodyard condition, has a sidelobe ratio of 9.32 db in its radiation pattern, irrespective of the length of the antenna. It i... View full abstract»

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  • Design of circular apertures for narrow beamwidth and low sidelobes

    Publication Year: 1960, Page(s):17 - 22
    Cited by:  Papers (102)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (498 KB)

    This article extends a method of antenna design described in an earlier article by the same author. A family of continuous circular aperture distributions is developed in such a way as to involve only two independent parameters, A , a quantity uniquely related to the design sidelobe level and \bar{n} a number controlling t... View full abstract»

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  • Tables of Taylor distributions for circular aperture antennas

    Publication Year: 1960, Page(s):23 - 26
    Cited by:  Papers (19)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (273 KB)

    Tables of the circular aperture distributions described in the preceding paper by Taylor are given. Steps in the design process are illustrated by examples. View full abstract»

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  • High-frequency diffraction of electromagnetic waves by a circular aperture in an infinite plane conducting screen

    Publication Year: 1960, Page(s):27 - 36
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (534 KB)

    The scattering of plane electromagnetic wave of wave number k by a circular aperture of radius a in an infinitely conducting plane screen of zero thickness and infinite extent is considered. In the limit of large ka and at normal incidence, the ratio of the transmission cross section ... View full abstract»

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  • High-frequency diffraction of plane waves by an infinite slit for grazing incidence

    Publication Year: 1960, Page(s):37 - 42
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB)

    The scattering of plane electromagnetic waves of wave number k by an infinite slit of width 2a formed by two perfectly conducting coplanar screens of zero thickness is considered. In the limit of large ka and at grazing incidence, the asymptotic series for the transmission cross sec... View full abstract»

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  • The calculation of reflector antenna polarized radiation

    Publication Year: 1960, Page(s):43 - 49
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (584 KB)

    A partly analytical process is described for calculating the far-zone patterns of reflector antennas which may have nonlinear polarization. Wave polarization equations are given for a focused but not necessarily symmetrical paraboloid. The process applies for any point-source feed whose radiation characteristics, including wave polarization, are known either by theory or measurements. Calculated a... View full abstract»

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  • Maximum angular accuracy of tracking a radio star by lobe comparison

    Publication Year: 1960, Page(s):50 - 56
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (497 KB)

    A general expression is derived for the maximum angular accuracy of tracking a radio star by lobe comparison (or monopulse). This angular accuracy depends on the input signal-to-noise ratio, the wavelength, the time-bandwidth product of signal integration, and the effective length of the antenna aperture. The maximum angular accuracy can be obtained, approximately, by performing a simple correlati... View full abstract»

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  • Experimental studies of meteor echoes at 200 mc

    Publication Year: 1960, Page(s):57 - 61
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (491 KB)

    The paper describes experimental results of bistatic studies of meteor echoes at 200 mc using a high power source and highly directive antennas. The transmission paths studied ranged from 940 to 1800 km in length and included many off-great-circle paths. Diurnal burst rate curves are given for each path. Median duration of the VHF bursts is compared with theory. For certain paths, duty cycle and D... View full abstract»

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  • Scattering by an infinite array of thin dielectric sheets

    Publication Year: 1960, Page(s):62 - 67
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (675 KB)

    By replacing each dielectric sheet in an infinite array of thin dielectric sheets by an infinitely thin polarization current sheet, a solution for the scattering of plane waves by such an array is obtained. The simplified periodic boundary value problem is rigorously solved by using bilateral Laplace transforms. Numerical results obtained compare favorably with those obtained by the Rayleigh-Ritz ... View full abstract»

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  • Reciprocity theorems for electromagnetic fields whose time dependence is arbitrary

    Publication Year: 1960, Page(s):68 - 73
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (470 KB)

    Two reciprocity theorems are derived which are valid for fields whose sources may have arbitrary time dependence. The first theorem involves the electromagnetic potentials, and the second is in terms of the electric and magnetic fields directly. In both cases, it is necessary to make use of the advanced as well as the retarded solutions to Maxwell's equations. Some properties of the theorems are d... View full abstract»

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  • Frequency scintillations of satellite signals before and after the Argus experiments

    Publication Year: 1960, Page(s):73 - 77
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (410 KB)

    Satellite signals are effected by frequency scintillations in the same manner as radio star emissions. Therefore, the Doppler shift of such signals suffers fluctuations. These alterations are a function of the variations of the electron density distribution along the radio-ray path under observation. The number and the magnitude of these scintillations are used to measure the roughness of the iono... View full abstract»

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  • Correction to "A design procedure for dielectric microwave lenses of large aperture ratio and large scanning angle"

    Publication Year: 1960, Page(s): 77
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (96 KB)

    First Page of the Article
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  • Antenna image quality evaluation: Part I--By an optical simulation method

    Publication Year: 1960, Page(s):78 - 82
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (526 KB)

    An optical simulation method was used to study the effect of aperture illumination on image quality for a high resolution antenna. It was determined that an illumination close to uniform yields the best image, as measured by the similarity of the image to the object when similarity was judged by a group of human observers. The techniques used are described, and the results of the evaluation of a t... View full abstract»

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  • Antenna image quality evaluation: Part II--By a mechanical observer

    Publication Year: 1960, Page(s):83 - 87
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (492 KB)

    A digital computer was used as a mechanical observer to evaluate antenna image quality as a function of the aperture illumination for a high resolution antenna. An illumination close to uniform was found to yield an image that was best as measured by the ease with which the mechanical observer was able to analyze the images. A description of the logical design of the observer and the results of ap... View full abstract»

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  • Transmission-line missile antennas

    Publication Year: 1960, Page(s):88 - 90
    Cited by:  Papers (39)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (199 KB)

    A class of protruding rocket antennas of low silhouette is analyzed in terms of an approximately equivalent circuit that consists of a shunt-driven transmission line terminated in a reactor at each end. Expressions for the currents in the several parts of the circuit are used to determine the Poynting vector and from this the radiation resistance referred to the current in the generator. The react... View full abstract»

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  • Radiation pattern synthesis with sources located on a conical surface

    Publication Year: 1960, Page(s):91 - 96
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (435 KB)

    This paper presents various methods of synthesizing sources placed on a conical surface to produce a prescribed radiation pattern. The sources considered are a series of electric dipoles placed in free space on the surface of the cone around a set of circumferences. These circumferences are equidistant from each other, and the dipoles are oriented in the circumferential direction with no circumfer... View full abstract»

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  • A slot with variable coupling and its application to a linear array

    Publication Year: 1960, Page(s):97 - 101
    Cited by:  Papers (12)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (386 KB)

    The importance of a waveguide linear array capable of producing many different radiation patterns has led to the development of a slot radiator with variable coupling. An array of such radiators can be used as a laboratory apparatus for the evaluation of aperture distributions, or as a ground-painting reconnaissance antenna operable at many different altitudes. The slot radiator consists of a long... View full abstract»

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  • Theory of equilibrium electron and particle densities behind normal and oblique hypersonic shock waves in air

    Publication Year: 1960, Page(s):102 - 103
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (145 KB)

    The quantitative changes in propagation, antenna impedance, radar cross section, breakdown, and emissivity characteristics resulting from hypersonic plasmas depend on the electrons and heavier particles present. To determine these number densities for normal and oblique shocks, aerothermodynamic theory is applied to relate macroscopic properties on both sides of the shock front by means of the flo... View full abstract»

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  • A theorem regarding the commutation of antenna rotations

    Publication Year: 1960, Page(s):104 - 105
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (231 KB)

    Ordinarily when an antenna is rotated successively about mutually perpendicular earth-fixed axes such as axes pointing up, north, and west, the order in which the successive rotations are made cannot be reversed without obtaining a very different final antenna orientation. This paper gives an analytic proof that the same final antenna orientation can always be obtained with the rotation order reve... View full abstract»

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  • Radiation fields of circular loop antennas by a direct integration process

    Publication Year: 1960, Page(s):105 - 107
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (259 KB)

    Starting from the radiation characteristics of a differential current element, the vector potential produced by a single-turn circular loop antenna is formulated in terms of a general loop current by a direct integration process. Evaluation of the resulting integrals for a limited number of specific loop current distributions leads to generalized expressions for both the standing-wave and travelin... View full abstract»

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  • Refraction of VHF Signals at Ionospheric Heights

    Publication Year: 1960, Page(s):107 - 109
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB)

    It is not generally realized that while the refractive error due to the troposphere rapidly decreases with the elevation angle, its ionospheric counterpart behaves very differently. For target heights which are small or comparable to the Earth's radius the ionosphere refractive error initially increases with the elevation angle, attains the maximum value at elevation angles on the order of 100 mil... View full abstract»

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  • Modified luneberg lens for defocused source

    Publication Year: 1960, Page(s):110 - 111
    Cited by:  Papers (9)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (117 KB)

    A spherical Luneberg lens has the property of focusing the rays from a point source on the surface of the lens into a collimated beam on the diametrically opposite side of the lens. In microwave applications a point source on the surface of the lens is usually not obtained. Curves are given for the required index of refraction for a modified Luneberg lens which possesses the same collimating prope... View full abstract»

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Aims & Scope

The Transactions ceased publication in 1962. The current retitled publication is IEEE Transactions on Antennas and Propagation.

Full Aims & Scope