Radio communication device with improved antenna duplexing appar

Details Radio communication device with improved antenna duplexing appar Radio communication device with improved antenna duplexing appar

1995-10-10

1998-06-16

Vo, Nguyen

Telecommunications

Transmitter and receiver at same station

With transmitter-receiver switching or interaction prevention

455 83, 455117, 455296, 333 11, H04B 144

Patent

active

057686904

ABSTRACT:
A radio communication device that performs time-sharing communication by switching between reception and transmission, comprises a circulator for guiding transmission signals to the antenna and reception signals from the antenna to the reception circuit. The output on the reception circuit side of the circulator is grounded via a terminal circuit which is operated during transmission and turned off during reception.

REFERENCES:
patent: 2890328 (1959-06-01), Fox
patent: 3614675 (1971-10-01), Konishi
patent: 3648197 (1972-03-01), Siekanowicz
patent: 5126703 (1992-06-01), Kosuga
patent: 5276914 (1994-01-01), Ishizuka et al.
patent: 5548239 (1996-08-01), Kohama
Johnson et al., Basic Electric Circuit Analysis, 3rd Edition 1986, pp. 462-471.
Huelsman, Lawrence, Basic Circuit Theory, 2nd Edition 1984, pp. 324-326.

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