Reconfigurable duplexing couplers

Details Reconfigurable duplexing couplers Reconfigurable duplexing couplers

2008-02-20

2009-12-29

Takaoka, Dean O (Department: 2817)

Wave transmission lines and networks

Plural channel systems

Having branched circuits

C333S101000

Reexamination Certificate

active

07639102

ABSTRACT:
A multi-port reconfigurable coupler includes a coupler and a switching system configured to selectively reconfigure multiple ports of the coupler for increased application flexibility and for efficiently transmitting and receiving radio-frequency signals. The multi-port reconfigurable coupler includes a transmit signal port, a termination port, a receive signal port, an antenna port, and a switching system configured to selectively couple the termination port to a predetermined termination potential based on information indicating one of a transmit only mode, and a receive only mode, and to decouple based on information indicating a transmit-receive mode.

REFERENCES:
patent: 3619787 (1971-11-01), Salzberg
patent: 3624508 (1971-11-01), Kach
patent: 4031472 (1977-06-01), Shinkawa et al.
patent: 4420839 (1983-12-01), Hogerheiden, Jr.
patent: 4654887 (1987-03-01), Murphy et al.
patent: 4904966 (1990-02-01), Rubin

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