Programmable radio transceiver

Details Programmable radio transceiver Programmable radio transceiver

2005-02-10

2009-08-25

Pan, Yuwen (Department: 2618)

Telecommunications

Transmitter and receiver at same station

With frequency stabilization

C455S084000, C455S323000, C455S313000, C375S298000, C375S344000

Reexamination Certificate

active

07580684

ABSTRACT:
A fully integrated, programmable mixed-signal radio transceiver comprising a radio frequency integrated circuit (RFIC) which is frequency and protocol agnostic with digital inputs and outputs, the radio transceiver being programmable and configurable for multiple radio frequency bands and standards and being capable of connecting to many networks and service providers. The RFIC includes a tunable resonant circuit that includes a transmission line having an inductance, a plurality of switchable capacitors configured to be switched into and out of the tunable resonant circuit in response to a first control signal, and at least one variable capacitor that can be varied in response to a second control signal, wherein a center resonant frequency of the resonant circuit is electronically tunable responsive to the first and second control signals that control a first capacitance value of the plurality of switchable capacitors and a second capacitance value of the at least one variable capacitor.

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