Method and apparatus for determining antenna radiation patterns

Details Method and apparatus for determining antenna radiation patterns Method and apparatus for determining antenna radiation patterns

1992-03-13

1995-04-25

Hajec, Donald

Communications: radio wave antennas

Antennas

Measuring signal energy

343840, G01R 2910

Patent

active

054103240

ABSTRACT:
A compact range for the determination of the radiation pattern of a first antenna (1), comprises a focusing system (3) and apparatus (2) supporting the first antenna in the quiet zone of the focusing system. For that purpose, the base comprises a modulated-retransmission probe array (6, 16) mounted in the focal plane (7) of the focusing system, a second antenna (10, 17) mounted near the probe array, apparatus (13) to determine, from the electromagnetic radiation retransmitted by the probe array and collected by one of the antennas during the transmission of electromagnetic radiation by the other, a signal SI representing the field at each point of the probe array, and a display (14) for displaying the signal.

REFERENCES:
patent: 4270129 (1981-05-01), Herper et al.
patent: 4888596 (1989-12-01), Conanan
patent: 5128621 (1992-07-01), Berthaud et al.
The Bell system technical Journal, Sep. 1965, pp. 1284-1293.
"Radiation Pattern of a Reflector Antenna from Near Field Measurements over the Focal Region of a Coupled Lens or Offset Reflector", S. X. Yin et al., AP-S International Symposium 1988 Digest, vol. 3, 1988, Syracuse, New York US, pp. 1114-1117.
"Rapid Near-Field Antenna Testing Via Arrays of Modulated Scattering Probes", J. C. Bolomey et al., IEEE Transactions on Antennas and Propagation, vol. 36, No. 6, Jun. 1988, New York, US, pp. 804-814.
"Near-Field Testing of Radar Antennas", Edward B. Joy, Microwave Journal, vol. 33, No. 1, Jan. 1990, Dedham US, pp. 119-130.

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