Adaptive multiple interference tracking and cancelling antenna

Details Adaptive multiple interference tracking and cancelling antenna Adaptive multiple interference tracking and cancelling antenna

1983-03-07

1985-02-19

Lieberman, Eli

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343380, 343844, G01S 306

Patent

active

045008833

ABSTRACT:
An array antenna comprised of n individual elements where n is an integer wer of the base two. The individual elements have predetermined space code positions N which are varied by means of a plurality of tracking loops comprised of a portion of receiver apparatus coupled to the array and a null seeking detector which is adapted to vary the space code positions of the elements such that the elements are selectively spaced at respective N' locations relative to the N locations to provide a predetermined 180.degree. phase difference between sets of elements operating in pairs at each space angle of arrival of each of M interference signals whereby a null and substantially complete cancellation of the interfering sources are simultaneously provided while retaining the ability to receive the desired signal at its peak received value.

REFERENCES:
patent: 3130410 (1964-04-01), Gutleber
patent: 4097866 (1978-06-01), Frost et al.
patent: 4268829 (1981-05-01), Baurle et al.

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