Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1979-12-31
1981-09-22
Blum, Theodore M.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343100SA, 343854, G01S 1300
Patent
active
042913101
ABSTRACT:
An electronic two-dimensional scanning array system with a two-dimensional interferometer array arrangement associated therewith is disclosed. The scanning array is used for transmitting a pencil beam, and the interferometer arrays are employed in receiving, array signal processing also being employed. The azimuth interferometer array consists of two sub-arrays, one on each side of the scanning transmitting array. The elevation interferometer array is likewise divided into two sub-arrays, one across the top and the other across the bottom of the scanning transmitting planar array. Accordingly, null responses in azimuth and elevation are provided. Phasors, which may be controlled by tracking functions, steer the center and nulls of the interferometer receive beam together in such a manner that the maximum improvement of the ratio of array-signal-process received target power to received power from an interfering source angularly separated from the interferometer center beam is achieved.
REFERENCES:
patent: 4034376 (1977-07-01), Barton
Blum Theodore M.
International Telephone and Telegraph Corporation
O'Neil William T.
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