Antenna circuitry

Details Antenna circuitry Antenna circuitry

2006-07-04

2006-07-04

Gesesse, Tilahun (Department: 2684)

Telecommunications

Transmitter

With feedback of modulated output signal

C455S127100, C455S277100, C455S550100

Reexamination Certificate

active

07072625

ABSTRACT:
An antenna circuit for a mobile telecommunication device. The circuit comprises a power amplifier for amplifying, in use, a signal to be transmitted. An antenna transmits signals output from the power amplifier. Switching means introduces, dependent upon the gain setting of the power amplifier, an attenuator between the output of the power amplifier and the antenna.

REFERENCES:
patent: 5278996 (1994-01-01), Shitara
patent: 5822684 (1998-10-01), Kitakubo
patent: 5909643 (1999-06-01), Aihara
patent: 5933767 (1999-08-01), Leizerovich et al.
patent: 6366764 (2002-04-01), Yang et al.
patent: 6765540 (2004-07-01), Toncich
patent: 2002/0086643 (2002-07-01), Leipala
patent: 1 011 192 (2000-06-01), None

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