Matching circuit for adaptive impedance matching in radio

Details Matching circuit for adaptive impedance matching in radio Matching circuit for adaptive impedance matching in radio

2011-08-09

2011-08-09

West, Lewis G (Department: 2618)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S552100, C455S078000, C455S073000

Reexamination Certificate

active

07996035

ABSTRACT:
An impedance matching circuit for a radio receives antenna signals and has its matching elements, such as capacitors, progressively switched into the circuit, with the matching element configuration resulting in the highest RSSI being subsequently used until a succeeding test or antenna impedance change. The effect of the matching circuit is accounted for in the transmitter calibration routine so that the matching circuit works for both half duplex and full duplex.

REFERENCES:
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patent: 7528674 (2009-05-01), Kato et al.
patent: 2007/0210899 (2007-09-01), Kato et al.
patent: 2009/0109880 (2009-04-01), Kim et al.
patent: 2010/0210299 (2010-08-01), Gorbachov
Bennett Liles, “Technology Showcase: Wireless Systems”, http://svconline.com/mag/avinstall—wireless—systems/, May 1, 2004.

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