Radio frequency power amplifier

Details Radio frequency power amplifier Radio frequency power amplifier

2007-08-28

2007-08-28

Nguyen, Khanh Van (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including protection means

C330S20700P, C330S296000

Reexamination Certificate

active

10970098

ABSTRACT:
A radio frequency (RF) power amplification circuit including a power amplifier is provided for preventing breakdown of the power amplifier. The power amplifier includes an input for receiving RF signals and an output for providing amplified RF signals. The RF power amplification circuit also includes a bias circuit coupled to the input of the power amplifier to permit normal operation of the power amplifier when the base current is below a predetermined current threshold and to prevent normal operation of the power amplifier when the base current is above the predetermined current threshold.

REFERENCES:
patent: 6137366 (2000-10-01), King
patent: 6496052 (2002-12-01), Chiu
patent: 6750722 (2004-06-01), Newman et al.
patent: 6998920 (2006-02-01), Krutko et al.
U.S. Appl. No. 10/424,251, filed Apr. 28, 2003 entitled, “Power Amplifier and Method Thereof”.

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