Apparatus and method for improving r.f. isolation between adjace

Details Apparatus and method for improving r.f. isolation between adjace Apparatus and method for improving r.f. isolation between adjace

1977-10-28

1980-11-11

Moore, David K.

Communications: radio wave antennas

Antennas

Microstrip

343846, 455 24, 455 78, H01Q 138

Patent

active

042336074

ABSTRACT:
Method and apparatus for improving the r.f. isolation between a transmitting and receiving antenna disposed at respectively corresponding spaced apart but relatively adjacent locations. A special compensation radiator is provided at the transmitting and/or receiving antenna site and fed from the same r.f. input/output which feeds the main antenna. The direction, magnitude and phase of r.f. energy radiated and/or received from the compensating radiator are chosen so as to substantially cancel the undesirable r.f. energy otherwise directly received by the receiving antenna from the transmitting antenna.

REFERENCES:
patent: 1586144 (1926-05-01), DeBellescize
patent: 2947987 (1960-08-01), Dodington
patent: 2998602 (1961-08-01), Cacheris
patent: 3277488 (1966-10-01), Hoffman
patent: 3710333 (1973-01-01), Crom
patent: 4074270 (1978-02-01), Kaloi

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