Communications: directive radio wave systems and devices (e.g. – Directive – Including a steerable array
Patent
1993-11-08
1995-07-04
Blum, Theodore M.
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a steerable array
342372, 342373, H01Q 322, H01Q 324
Patent
active
054304520
ABSTRACT:
Disclosed is a device for supply to the radiating elements of an array antenna with electronic scanning, notably applicable to an MLS type landing system. The disclosed antenna has as many (n) phase-shifters as it has radiating elements each of the phase-shifters being connected to a plurality (m) of neighboring radiating elements forming a sub-array. The sub-arrays are interleaved so that each of the radiating elements is supplied by means of m phase-shifters. As a result, an array antenna with very small minor lobes is obtained.
REFERENCES:
patent: 3509577 (1970-04-01), Kinsey
patent: 4117494 (1978-09-01), Frazita
patent: 4122453 (1978-10-01), Profera
patent: 4228436 (1980-10-01), Dufort
patent: 4692768 (1987-09-01), Becavin
patent: 4721960 (1988-01-01), Lait
patent: 4907004 (1990-03-01), Zacharatos et al.
DuFort, Edward C., Low Sidelobe Electronically Scanned Antenna Using Identical Transmit/Receive Modules, 8082 I.E.E.E. Transactions on Antennas and Propagation 36 (1988) Mar., No. 3, New York, N.Y. USA, pp. 349-356.
"Thomson-CSF"
Blum Theodore M.
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