Apparatus, methods and articles of manufacture for a...

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2011-01-11

2011-01-11

Anderson, Matthew D (Department: 2618)

Telecommunications

Transmitter and receiver at same station

With transmitter-receiver switching or interaction prevention

C455S082000, C455S101000, C455S121000, C333S103000, C333S101000, C330S051000, C330S151000, C330S086000

Reexamination Certificate

active

07869770

ABSTRACT:
A single-die multi-band switch includes a plurality of transmitter ports and a plurality of receiver ports, any one of which is selected to be connected to an antenna port. At least some of these switching topologies use a branched or cascaded switching system in order to reduce signal insertion loss. It is preferred that the individual switching elements be field effect transistors. The switching topologies employed include series-connected groups of transistors and interdigitated FETs.

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