Switchable directional coupler for use with RF devices

Details Switchable directional coupler for use with RF devices Switchable directional coupler for use with RF devices

2005-07-11

2009-06-09

Pham, Tuan A (Department: 2618)

Telecommunications

Transmitter and receiver at same station

C455S078000, C455S083000, C333S101000, C333S104000, C333S109000

Reexamination Certificate

active

07546089

ABSTRACT:
The embodiments of the present invention provide a directional coupler switchable between a normal state and a bypass state. In one embodiment, the directional coupler comprises shunt switches for switching between the normal state and the bypass state, and first and second transmission lines each extending between first and second ends, wherein the shunt switches comprises a first switch coupled to the first end of the first transmission line, a second switch coupled to the first end of the first transmission line, and a third switch coupled between the second end of the first transmission line and the second end of the second transmission line.

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