Low cost antenna switch using relays configured in a transmit/re

Details Low cost antenna switch using relays configured in a transmit/re Low cost antenna switch using relays configured in a transmit/re

1989-04-25

1991-01-01

Lee, Benny T.

Telecommunications

Transmitter and receiver at same station

With transmitter-receiver switching or interaction prevention

455 78, 455 82, 333101, 333105, H04B 148, H01P 110

Patent

active

049824422

ABSTRACT:
An antenna switch using two low-cost relays substantially improves isolation of signals from a transmitter to a receiver by connecting an impedance across the input of a receiver during transmit. During receive, the transmitter is disconnected from the antenna while the receiver is connected.

REFERENCES:
patent: 2958054 (1960-10-01), Concelman
patent: 3117241 (1964-01-01), Paynter et al.
patent: 3372349 (1968-03-01), Concelman
patent: 3373360 (1968-03-01), Wilson
patent: 4492937 (1985-01-01), Theriault
patent: 4542300 (1985-09-01), Nagatomi

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