Abstract:
A new technique is described for determining power gain and polarization of antennas at reduced range distances. It is based on a generalized three-antenna approach which...Show MoreMetadata
Abstract:
A new technique is described for determining power gain and polarization of antennas at reduced range distances. It is based on a generalized three-antenna approach which, for the first time, permits absolute gain and polarization measurements to be performed without quantitative a priori knowledge of the antennas. The required data are obtained by an extrapolation technique which includes provisions for rigorously evaluating and correcting for errors due to proximity and multipath interference effects. The theoretical basis provides a convenient and powerful approach for describing and solving antenna measurement problems, and the experimental method employed illustrates the utility of this approach. Examples of measurements are included which exhibit errors in gain as small as\pm0.11dB (3\sigma).
Published in: IEEE Transactions on Antennas and Propagation ( Volume: 21, Issue: 4, July 1973)
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1.
E. V. Jull, "Errors in the predicted gain of pyramidal horns", IEEE Trans. Antennas Propagat., vol. AP-21, pp. 25-31, Jan. 1973.
2.
R. R. Bowman, "Field strength above 1 GHz: measurement procedures for standard antennas", Proc. IEEE, vol. 55, pp. 981-990, June 1967.
3.
T. S. Chu and R. A. Semplak, "Gain of electromagnetic horns", Bell Syst. Tech. Journal, pp. 527-537, March 1965.
4.
P. F. Wacker, Theory and numerical techniques for accurate extrapolation of near-zone antenna and scattering measurements, Apr. 1972.
5.
D. M. Kerns and E. S. Dayhoff, "Theory of diffraction in microwave interferometry", J. Res. Nat. Bur. Stand., vol. 64B, pp. 1-13, Jan.-Mar. 1960.
6.
D. M. Kerns, "Correction of near-field antenna measurements made with an arbitrary but known measuring antenna", Electron. Lett., vol. 6, pp. 346-347, May 1970.
7.
D. M. Kerns, "New method of gain measurement using two identical antennas", Electron. Lett., vol. 6, pp. 348-349, May 1970.
8.
R. C. Baird, A. C. Newell, P. F. Wacker and D. M. Kerns, "Recent experimental results in near-field antenna measurements", Electron. Lett., vol. 6, pp. 349-351, May 1970.
9.
A. C. Newell and D. M. Kerns, "Determination of both polarization and power gain of antennas by a generalized 3-antenna measurement method", Electron. Lett., vol. 7, pp. 68-70, Feb. 1971.
10.
E. B. Joy and D. T. Paris, "Spatial sampling and filtering in near-field measurements", IEEE Trans. Antennas Propagat., vol. AP-20, pp. 253-261, May 1972.
11.
D. M. Kerns, "Definitions of v i Z Y a b r and S", Proc. IEEE, vol. 55, pp. 892-900, 1967.
12.
R. W. Beatty, Discussion of errors in gain measurements of standard electromagnetic horns, Mar. 1967.
13.
J. S. Hollis, T. J. Lyon and L. Clayton, Microwave Antenna Measurements, Ga., Atlanta:Scientific Atlanta, Inc., pp. 10-1-10-38, July 1970.
14.
"ANSI Standard C16.11-1971, or IEEE Standard 149-1965", Test Procedure for Antennas, 1971.
15.
J. S. Hollis, T. J. Lyon and L. Clayton, Microwave Antenna Measurements, Ga., Atlanta:Scientific Atlanta, Inc., pp. 3-39-3-46, July 1970.
16.
W. J. Anson, "A guide to the use of the modified reflectometer technique of VSWR measurements", NBS J. Res. Eng. and Instr., vol. 65C, no. 4, pp. 217-222, Oct.-Dec. 1961.
17.
D. M. Kerns and R. W. Beatty, Basic Theory of Waveguide Junctions and Introductory Microwave Network Analysis, England, Oxford:Pergamon Press, pp. 51, 1967.
18.
M. G. Natrella, Experimental Statistics, Washington, D. C.:NBS, pp. 1-8, 1963.
19.
M. G. Kendall and A. Stuart, "The Advanced Theory of Statistics" in Inference and Relationship, New York, vol. 2, pp. 86, 1967.
20.
A. Ludwig, J. Hardy and R. Norman, Gain calibration of a horn antenna using pattern integration, Oct. 1972.
21.
A. Ludwig and R. Norman, "A new method for calculating correction factors for near-field gain measurements", IEEE Trans. Antennas Propagat..