Phased array multiple area nulling antenna architecture

Details Phased array multiple area nulling antenna architecture Phased array multiple area nulling antenna architecture

1995-09-20

1996-11-26

Blum, Theodore M.

Communications: directive radio wave systems and devices (e.g.,

Directive

Utilizing correlation techniques

342383, 342384, H01Q 322, H01Q 324, H01Q 326

Patent

active

055790160

ABSTRACT:
An adaptive nulling communication system for nulling undesired signals from communication signals in multiple separate and distinct coverage areas is disclosed. The adaptive nulling communication system includes a phased array antenna having multiple receiving elements to form a single aperture for receiving multiple signals. A first set of beam forming networks coupled to the phased array antenna forms the multiple separate and distinct coverage areas. A distribution network coupled to the first set of beam forming networks distributes the signals received from these coverage areas. A nulling processor having a second beam forming network coupled to the distribution network weights and adjusts the second beam forming network in response to the undesired signals to null these undesired signals from the communication signals.

REFERENCES:
patent: 4338605 (1982-07-01), Mims
patent: 4651155 (1987-03-01), Baurle et al.
patent: 4931977 (1990-06-01), Klemes
patent: 5175558 (1992-12-01), Dupree
patent: 5371506 (1994-12-01), Yu et al.

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