Invention Grant
- Patent Title: RF detector and method for detecting
- Patent Title (中): RF检测器和检测方法
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Application No.: US13632445Application Date: 2012-10-01
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Publication No.: US09322856B2Publication Date: 2016-04-26
- Inventor: Gordon Glen Rabjohn , Johan Grundlingh , Adrian Peter Long
- Applicant: SiGe Semiconductor, Inc.
- Applicant Address: CA Ottawa
- Assignee: SIGE SEMICONDUCTOR, INC.
- Current Assignee: SIGE SEMICONDUCTOR, INC.
- Current Assignee Address: CA Ottawa
- Agency: Knobbe, Martens, Olson & Bear, LLP
- Main IPC: G01R1/30
- IPC: G01R1/30 ; G01R21/12
Abstract:
A circuit and method are provided for detecting a power of a signal amplified in a power amplifier. A diode and a voltage bias source are used to shift a voltage of the signal taken at a base of an amplifying transistor of the power amplifier, to generate a positive signal. The positive signal is provided to a base input of an emitter follower exhibiting high input impedance to generate a power detector output which follows the positive signal.
Public/Granted literature
- US20130027023A1 POWER DETECTOR AND METHOD FOR DETECTING POWER Public/Granted day:2013-01-31
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