Radio transceiver on a chip

Details Radio transceiver on a chip Radio transceiver on a chip

2007-09-11

2007-09-11

Zimmerman, Brian (Department: 2612)

Multiplex communications

Duplex

Communication over free space

C455S087000, C455S226400, C340S572400, C330S253000

Reexamination Certificate

active

11271173

ABSTRACT:
An entire radio transceiver can be completely integrated into one IC chip. In order to integrate the IF filters on the chip, a heterodyne architecture with a low IF is used. A single, directly modulated VCO is used for both up-conversion during transmission, and down-conversion during reception. Bond-wires are used as resonators in the oscillator tank for the VCO. A TDD scheme is used in the air interface to eliminate cross-talk or leakage. A Gaussian-shaped binary FSK modulation scheme is used to provide a number of other implementation advantages.

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