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IRE Transactions on Antennas and Propagation

Issue 3 • Date May 1960

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Displaying Results 1 - 23 of 23
  • [Front cover and table of contents]

    Publication Year: 1960, Page(s): 0
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  • Editorial comment

    Publication Year: 1960, Page(s): 234
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  • Propagation at 36,000 MC in the Los Angeles basin

    Publication Year: 1960, Page(s):235 - 241
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (641 KB)

    Fading characteristics at 36 kmc over a line-of-sight path in the Los Angeles basin have been shown to be closely correlated with meteorological conditions, particularly with the relatively persistent, low-level temperature inversion of the area. No positive evidence of the influence of atmospheric pollutants has been found, but it has been shown that suitably located microwave paths can be of val... View full abstract»

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  • Two statistical models for radar terrain return

    Publication Year: 1960, Page(s):242 - 246
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (477 KB)

    A statistical approach to radar backscattering from terrain is taken in this paper. The normalized radar cross section, \sigma _{0} , has been computed for two different terrain models. The value of \sigma _{0} , is obtained for both models as a function of grazing angle, \theta , a... View full abstract»

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  • Radar terrain return measured at near-vertical incidence

    Publication Year: 1960, Page(s):246 - 254
    Cited by:  Papers (13)
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    An experimental program to investigate the reradiation properties of terrain at near-vertical incidence was carried out. Data were obtained at 415 and 3800 mc, using narrow-pulse type radar at altitudes of 2000 to 12,000 feet over many different target areas. At frequencies over 400 mc most terrain acts as a scatterer of energy even at near-vertical incidence with a backscattering "radiation patte... View full abstract»

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  • A new mathematical approach for linear array analysis

    Publication Year: 1960, Page(s):255 - 259
    Cited by:  Papers (16)  |  Patents (1)
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    It is well known that linear antenna arrays are representable mathematically by polynomials. However, even for the simplest case of a uniform array, properties of its radiation pattern are conventionally analyzed by examining the transcendental form of the array factor and some of its important characteristics have been determined only approximately. For a more general array, a closed form of the ... View full abstract»

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  • Log periodic dipole arrays

    Publication Year: 1960, Page(s):260 - 267
    Cited by:  Papers (97)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (762 KB)

    A new class of coplanar dipole arrays is introduced. The antennas described provide unidirectional radiation patterns of constant beamwidth and nearly constant input impedances over any desired bandwidth. The broad-band properties are achieved by making use of the principles of log periodic antenna design. Models are discussed which are capable of providing 8- to 9-db directive gain with an associ... View full abstract»

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  • Beam pointing errors of long line sources

    Publication Year: 1960, Page(s):268 - 275
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (661 KB)

    The relation between the statistics of the antenna beam pointing direction and the phase and amplitude errors at the source has been obtained to first order in the mean-square errors, under certain restrictions, for long line sources. It is shown that when the desired phase at the source is a constant, the results are, to first order, independent of the amplitude errors. When the desired amplitude... View full abstract»

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  • Mutual impedance effects in large beam scanning arrays

    Publication Year: 1960, Page(s):276 - 285
    Cited by:  Papers (32)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (758 KB)

    An analysis is presented of the driving point impedance of the elements in a flat array of infinite vertical height but finite horizontal width. It is assumed that each of the elements is fed by a separate amplifier, having infinite internal impedance, and that the amplifiers can be phased to direct the beam at various positions in space. The radiating elements considered are infinitely long wires... View full abstract»

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  • Mutual coupling effects in large antenna arrays: Part 1--Slot arrays

    Publication Year: 1960, Page(s):286 - 297
    Cited by:  Papers (48)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1033 KB)

    A periodic structure approach is presented for the analysis of the impedance properties of large antenna arrays. The method is applied to a two-dimensional array of slots, in which each slot is fed by a separate waveguide and the array radiates into a half-space. The slot spacing and progressive phasing in the array may be arbitrary, however. The periodic structure approach permits a waveguide-typ... View full abstract»

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  • Spiral antennas

    Publication Year: 1960, Page(s):298 - 306
    Cited by:  Papers (45)
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    The radiation fields of the Archimedes spiral are derived by approximating the spiral with a series of semicircles. The calculated patterns are shown to have excellent correlation with experimentally determined patterns. It is shown that the high-frequency limit is determined by the feed configuration and that the low-frequency limit occurs when the outside diameter is a little greater than a half... View full abstract»

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  • Ground constant measurements using a section of balanced two-wire transmission line

    Publication Year: 1960, Page(s):307 - 312
    Cited by:  Papers (5)
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    When an open-circuited section of unshielded balanced two-wire transmission line is introduced perpendicularly into earth (or some sample under test), the electrical characteristics of the latter may be found by simple input-impedance measurements. By laboratory sample measurements the classical short- and open-circuited method can be used. Some exact and approximate procedures are presented and t... View full abstract»

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  • The Archimedean two-wire spiral antenna

    Publication Year: 1960, Page(s):312 - 323
    Cited by:  Papers (171)  |  Patents (5)
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    A pair of equally excited but oppositely sensed Archimedean two-wire spirals situated close to one another in the same plane-a doublet-is used to generate a linearly polarized field in which the direction of polarization and phase are controlled or varied independently of each other by rotation of the spiral radiators. An array of these doublets can be made to scan by rotation of the several spira... View full abstract»

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  • Coupled leaky waveguides 1: Two parallel slits in a plane

    Publication Year: 1960, Page(s):323 - 330
    Cited by:  Papers (1)
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    Theoretical expressions are derived for the effects of mutual coupling between two parallel leaky wave antennas located in an infinite plane. The leaky wave antennas treated are slitted rectangular waveguides, the propagation constants of which are modified by the coupling. It is shown that the attenuation constants are influenced significantly but that the phase constants are changed only slightl... View full abstract»

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  • Experimental study of a diffraction reflector

    Publication Year: 1960, Page(s):331 - 336
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (613 KB)

    A microwave antenna has been designed and constructed on the principles of parageometric optics formulated by Toraldo di Francia and on principles similar to those of Fresnel rings and the diffraction grating. Its surfaces are all zones of cones and are simple to construct. The chosen design parameters were incorporated in two K -band ( View full abstract»

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  • A note on the relation between the "Exact" and "Simplified" theories for EM wave propagation in ionized gases

    Publication Year: 1960, Page(s):337 - 338
    Cited by:  Papers (1)
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  • A note on "Effects of relatively strong fields on the propagation of EM waves through a hypersonically produced plasma"

    Publication Year: 1960, Page(s):338 - 339
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    It is noted that the comments of Anderson (ibid, this issue, pp. 337-338, May 1960) regarding the typographical errors of B2 and π, and the definition of ν, an effective collision frequency, for insertion into the classical equations are correct. The deviation in our simplified conductivity based on a mean velocity fo is, however, essentially 0.18 and not 0.82. View full abstract»

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  • A reciprocity theorem for nonperiodic fields

    Publication Year: 1960, Page(s):339 - 342
    Cited by:  Papers (6)
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  • Checking design of stepped luneberg lens

    Publication Year: 1960, Page(s):342 - 343
    Cited by:  Patents (1)
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  • A note concernig the precise measurements of dipole antenna impedance

    Publication Year: 1960, Page(s):343 - 344
    Cited by:  Papers (1)
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  • Fresnel region field distributions of circular aperture antennas

    Publication Year: 1960, Page(s):344 - 346
    Cited by:  Papers (4)
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  • On the beam deviation factor of a parabolic reflector

    Publication Year: 1960, Page(s):347 - 349
    Cited by:  Papers (22)
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  • [Back cover]

    Publication Year: 1960, Page(s): c4
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    Freely Available from IEEE

Aims & Scope

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

Full Aims & Scope