Static antenna tuning and antenna voltage measurement

Details Static antenna tuning and antenna voltage measurement Static antenna tuning and antenna voltage measurement

1997-01-22

1999-01-05

Le, Hoanganh T.

Communications: radio wave antennas

Antennas

Measuring signal energy

343860, 4551931, 455121, G01R 2910, H01Q 150

Patent

active

058568093

ABSTRACT:
A static antenna tuning and antenna voltage measurement circuit (40) includes antenna voltage conversion circuitry (44) for converting a voltage signal (42) to a measurement signal representative of transmitter/receiver antenna (16) operation. Voltage signal (42) arises from transmitter/receiver antenna (16) transmitting or receiving a recognition signal (S1, S2). Comparator circuitry (48, 50, 52) compares the measurement signal to a predetermined optimal transmitter/receiver antenna operation signal. Control circuitry (54, 56) controls the tuning of transmitter/receiver antenna (16) such that (a) in the event that the measurement signal indicates optimal performance of transmitter/receiver antenna (16) relative to the predetermined optimal transmitter/receiver antenna operation signal, storing the measurement signal as the predetermined optimal transmitter/receiver antenna operation signal; (b) in the event that the measurement signal indicates less than optimal performance of transmitter/receiver antenna (16), generating a tuning signal to antenna tuning circuitry (56) associated with transmitter/receiver antenna (16); and (c) repeating steps (a) and (b) until an optimal transmitter/receiver antenna performance condition exists.

REFERENCES:
patent: 5073781 (1991-12-01), Stickelbrocks
patent: 5168282 (1992-12-01), Viereck
patent: 5287112 (1994-02-01), Schuermann

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