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Antennas and Propagation, IRE Transactions on

Issue 2 • Date March 1960

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Displaying Results 1 - 19 of 19
  • [Front cover and table of contents]

    Publication Year: 1960 , Page(s): 0
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    Freely Available from IEEE
  • Editorial comment

    Publication Year: 1960 , Page(s): 130
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (89 KB)  

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  • Theory of coupled folded antennas

    Publication Year: 1960 , Page(s): 131 - 135
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    Formulas for the mutual and self-impedance of two identical nonstaggered parallel-folded dipoles are developed. A generalization of the theory permits determination of these impedances for any identical dual configuration of wires, no matter how complicated, provided the structures are symmetrical with respect to the driving points. If the impedance of any single-conductor solid-wire element in a ... View full abstract»

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  • The slot antenna with coupled dipoles

    Publication Year: 1960 , Page(s): 136 - 143
    Cited by:  Papers (21)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (559 KB)  

    The problem of an array consisting of a slot antenna and two symmetrically-located cylindrical dipoles is formulated. The approximate distribution of the current along each antenna is obtained by a method of iteration. The radiation function, the coupling coefficients between the slot and the dipole, the relation between the magnetic current in the slot and the electric current in the dipole, and ... View full abstract»

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  • Radiation patterns of finite-size corner-reflector antennas

    Publication Year: 1960 , Page(s): 144 - 157
    Cited by:  Papers (12)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1283 KB)  

    Radiation patterns were measured for corner-reflector antennas having various combinations of widths and lengths of the reflecting surfaces. The widths of these ranged from 1 to 10 wavelengths, the lengths from 0.5 to 5 wavelengths. The aperture angle was, in general, set at a value required to maximize the gain. Radiation patterns are arranged according to the size of the reflecting surfaces. The... View full abstract»

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  • The flight evaluation of aircraft antennas

    Publication Year: 1960 , Page(s): 158 - 166
    Cited by:  Papers (1)
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    Flight evaluation of communication-navigation-identification antennas installed on new types of aircraft is required to confirm model measurements. The paper reviews the parameters involved in such an evaluation under both standard and nonstandard propagation conditions. The predicted signal level across the receiver terminals connected to an isotropic antenna is employed as the standard of compar... View full abstract»

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  • Reciprocity and scattering by certain rough surfaces

    Publication Year: 1960 , Page(s): 167 - 174
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (690 KB)  

    Reciprocity theorems are developed for the average field specularly reflected, and the average power randomly scattered, to a point by a statistically described array of objects. A reciprocal quasivariational expression for the average power is developed for use when the self-consistent method applies to calculating currents in the individual objects. This formula is applied to calculate different... View full abstract»

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  • Backscattering from a finite cone

    Publication Year: 1960 , Page(s): 175 - 182
    Cited by:  Papers (24)
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    Backscattering is calculated for an acoustic wave incident on a hard or soft finite cone, and for an electromagnetic wave incident on a perfectly-conducting finite cone. Two shapes of cone are treated, one with a flat base and the other with a rounded base. The calculation is based on the geometrical theory of diffraction. It is probably valid for wavelengths as large as the cone dimensions or sma... View full abstract»

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  • Optimum radar integration time

    Publication Year: 1960 , Page(s): 183 - 185
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (278 KB)  

    The practice of integrating periodic low-level signals with time in order to improve the SNR of a coherent signal in an ambient of incoherent noise is extremely useful and generally understood. In cases where the signal continues as long as the observer desires to integrate, the SNR can of course be improved by lengthening the integration period without limit. However, in the case of a radar syste... View full abstract»

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  • Power spectra of temperature, humidity and refractive index from aircraft and tethered balloon measurements

    Publication Year: 1960 , Page(s): 186 - 201
    Cited by:  Papers (6)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1262 KB)  

    Fifty-seven spectra of temperature, vapor pressure and refractive index were computed from captive balloon data taken at elevations up to 3000 feet MSL. Eight spectra of refractive index were obtained using an aircraft equipped with a microwave refractometer. It was found that atmospheric stability apparently has a pronounced effect on the variation of turbulent intensity with height. Although the... View full abstract»

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  • Aircraft scintillation spectra

    Publication Year: 1960 , Page(s): 201 - 212
    Cited by:  Papers (13)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (825 KB)  

    Using the model of aircraft reflection developed by DeLano, the spectra of the reflection signals are found. Spectra for the amplitude of the rectified return, for the angular fluctuation signal associated with a fixed radar line-of-sight (effective radar center fluctuation), and for the angular fluctuation signal associated with a zero time constant servo (apparent radar center fluctuation) are d... View full abstract»

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  • Apparent thermal noise temperatures in the microwave region

    Publication Year: 1960 , Page(s): 213 - 217
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (386 KB)  

    The necessary equations are presented for obtaining the noise temperature due to thermal radiation which would be sensed by a receiver with an antenna located at some altitude above the earth. Emission and absorption of radiation by the atmosphere is considered. Calculated over-all absorptivities and apparent atmospheric temperatures are given as a function of antenna observation angle for beam pa... View full abstract»

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  • Patterns of a radial dipole on an infinite circular cylinder: Numerical values

    Publication Year: 1960 , Page(s): 218 - 222
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  • Linear Arrays with arbitrarily distributed elements

    Publication Year: 1960 , Page(s): 222 - 223
    Cited by:  Papers (75)  |  Patents (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (162 KB)  

    A linear array with general arbitrarily distributed elements is discussed. A matrix relationship is found between the elements of the array and its far-zone pattern. The lower bound of the stored energy and the Q factor of the array are found. A figure of merit for the array is defined. View full abstract»

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  • Synthesis of nonseparable two-dimensional patterns by means of planar arrays

    Publication Year: 1960 , Page(s): 224 - 225
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  • A method to reduce antenna ground reflections

    Publication Year: 1960 , Page(s): 225 - 227
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  • Impulse excitation of a conducting medium

    Publication Year: 1960 , Page(s): 227 - 228
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (167 KB)  

    The depth of penetration into a conducting medium, where sinusoidal surface excitations generate peak magnetic fields or derivatives equal to those of an impulse-type surface excitation, are calculated. Finite pulses generate fields similar to those of a surface impulse provided they are sufficiently short. The maximum permissible pulse duration is proportional to the square of the specified penet... View full abstract»

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  • Electromagnetic transients in conducting media

    Publication Year: 1960 , Page(s): 229 - 230
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (154 KB)  

    In a recent paper, Richards derives expressions for the electric and magnetic fields of a short pulse of electric or magnetic dipole moment in a conducting medium. An alternative analysis is given which explains certain unusual results of the original work as arising from dispersion in the conducting medium and from the frequency dependence of the attenuation factor of the fields. The conclusion d... View full abstract»

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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