GaAs RF signal detection circuit with operational amplifier

Telecommunications – Transmitter – With feedback of modulated output signal

Reexamination Certificate

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Details

C455S127100, C455S115100, C455S091000, C330S140000, C330S129000

Reexamination Certificate

active

10872660

ABSTRACT:
A mobile terminal senses transmitted power in a Gallium Arsenide (GaAs) circuit. The GaAs circuit provides a steady reference voltage through the use of an operational amplifier and feedback circuit. The operational amplifier drives the bases of two transistors to create balanced signals that are then used by a detection circuit.

REFERENCES:
patent: 4563775 (1986-01-01), Yokosuka
patent: 5043672 (1991-08-01), Youn
patent: 5117505 (1992-05-01), Talwar
patent: 5126688 (1992-06-01), Nakanishi et al.
patent: 5376895 (1994-12-01), Aihara
patent: 5448770 (1995-09-01), Hietala et al.
patent: 5646578 (1997-07-01), Loh et al.
patent: 5724003 (1998-03-01), Jensen et al.
patent: 5832373 (1998-11-01), Nakanishi et al.
patent: 5880631 (1999-03-01), Sahota
patent: 5977831 (1999-11-01), Davis et al.
patent: 6069528 (2000-05-01), Kashima
patent: 6417729 (2002-07-01), Lemay et al.
patent: 6528983 (2003-03-01), Augustine
patent: 6670849 (2003-12-01), Damgaard et al.
patent: 6731915 (2004-05-01), Tran et al.
patent: 6788138 (2004-09-01), Suzuki
patent: 2004/0075499 (2004-04-01), Dupuis et al.
Alpha Industries, Inc. “DD02-92 Directional Detector”, Preliminary Specification Document, Jun. 2001.
Conexant. “RF142: Heterojunction Bipolar Transistor Power Amplifier Dual-Band Controller for GSM and PCS Applications”, Nov. 23, 1999.
ON Semiconductor. “NCS5000: Integrated RF Schottky Detector”, Product Specification Document Rev. Sep. 2, 2001.

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