Long range RFID transmitter power tracking loop

Details Long range RFID transmitter power tracking loop Long range RFID transmitter power tracking loop

2011-08-30

2011-08-30

Chen, Junpeng (Department: 2618)

Telecommunications

Transmitter

Power control, power supply, or bias voltage supply

C455S041100, C455S041300, C455S404200, C455S553100, C455S127100, C455S127200, C455S456100, C340S010100

Reexamination Certificate

active

08010067

ABSTRACT:
A high power amplifier having an automatic gain control circuit, the high power amplifier being coupled between the output end of an RF signal carrying coaxial cable and a transmitting antenna to automatically compensate for RF signal attenuation over the length of the coaxial cable.

REFERENCES:
patent: 3848191 (1974-11-01), Anderson
patent: 6313737 (2001-11-01), Freeze et al.
patent: 6812824 (2004-11-01), Goldinger et al.
patent: 2002/0090958 (2002-07-01), Ovard et al.
patent: 2003/0174099 (2003-09-01), Bauer et al.
patent: 2005/0054293 (2005-03-01), Bann
patent: 2008/0080549 (2008-04-01), Rofougaran
International Search Report dated Apr. 9, 2008 from corresponding PCT Application No. PCT/US2007/021996 (1 pg.).

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