Method and apparatus for reducing unwanted r.f. signal antenna r

Details Method and apparatus for reducing unwanted r.f. signal antenna r Method and apparatus for reducing unwanted r.f. signal antenna r

1982-10-25

1989-09-26

Steinberger, Brian S.

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

Directive

Utilizing correlation techniques

342 17, 342159, G01S 316

Patent

active

048704245

ABSTRACT:
A method and apparatus is disclosed for selectively modulating r.f. signals received/transmitted via the radiation pattern side lobes of an r.f. antenna structure. Such modulation permits discrimination between desired r.f. signal energy received via the primary radiation pattern lobe and unwanted r.f. radiation (e.g. noise, jamming or other interference signals) received/transmitted via the secondary or side lobe(s) of the radiation pattern.

REFERENCES:
patent: Re26600 (1969-10-01), Rosen
patent: Re29911 (1979-02-01), Munson
patent: 2297395 (1942-09-01), Erben
patent: 2565506 (1951-08-01), Litchford
patent: 2938204 (1960-05-01), Adams et al.
patent: 3531803 (1970-09-01), Rosen et al.
patent: 3680113 (1972-07-01), Dorier et al.
patent: 3721950 (1973-03-01), Jorgensen et al.
patent: 3983561 (1976-09-01), Biagi et al.
patent: 4080600 (1978-03-01), Toman
patent: 4257048 (1981-03-01), Yokoi et al.

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