Telecommunications – Transmitter – Power control – power supply – or bias voltage supply
Reexamination Certificate
2006-08-08
2006-08-08
Le, Lana (Department: 2685)
Telecommunications
Transmitter
Power control, power supply, or bias voltage supply
C455S127300, C455S126000, C455S129000, C330S010000
Reexamination Certificate
active
07088971
ABSTRACT:
A monolithic integrated circuit (IC), and method of manufacturing same, that includes all RF front end or transceiver elements for a portable communication device, including a power amplifier (PA), a matching, coupling and filtering network, and an antenna switch to couple the conditioned PA signal to an antenna. An output signal sensor senses at least a voltage amplitude of the signal switched by the antenna switch, and signals a PA control circuit to limit PA output power in response to excessive values of sensed output. Preferred fabrication techniques include stacking multiple FETs to form switching devices. An iClass PA architecture is described that dissipatively terminates unwanted harmonics of the PA output signal. A preferred embodiment of the RF transceiver IC includes two distinct PA circuits, two distinct receive signal amplifier circuits, and a four-way antenna switch to selectably couple a single antenna connection to any one of the four circuits.
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Burgener Mark L.
Cable James S.
Boling, Esq. William C.
Jaquez & Associates
Jaquez, Esq. Martin J.
Le Lana
Peregrine Semiconductor Corporation
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