Main lobe signal canceller in a null steering array antenna

Details Main lobe signal canceller in a null steering array antenna Main lobe signal canceller in a null steering array antenna

1976-11-15

1978-12-12

Lieberman, Eli

Communications: radio wave antennas

Antennas

With coupling network or impedance in the leadin

343100LE, H01Q 326

Patent

active

041298730

ABSTRACT:
In a null steering array antenna having a main antenna characterized by a radiation pattern with a relatively narrow main lobe and a plurality of secondary antennas forming a sub-array for providing a null in the direction of an undesired signal, a null steering device is associated with each secondary antenna and coupled to receive a portion of the signal from the main antenna for producing a null at each secondary antenna in the direction of the main lobe. The plurality of null steering devices are gated or otherwise activated so as not to operate on signals which are to be nulled by the main null steering apparatus.

REFERENCES:
patent: 3938154 (1976-02-01), Lewis
patent: 4010469 (1977-03-01), Marcum
patent: 4044359 (1977-08-01), Applebaum et al.

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