Class S radio frequency power amplifier

Details Class S radio frequency power amplifier Class S radio frequency power amplifier

1998-03-23

2000-10-24

Shingleton, Michael B

Amplifiers

With control of power supply or bias voltage

With control of input electrode or gain control electrode bias

330 10, 330149, H03G 330

Patent

active

061373583

ABSTRACT:
A radio frequency EER-type power amplifier is described in which pulse width modulation is utilized. Input rf signals are split into phase and amplitude paths by a delay line (210). The phase path is coupled to a power amplifier (260). The amplitude path includes an envelope detector (220) coupled to a class S amplifier (270). The class S amplifier is coupled to the power amplifier (260) via a transmission line implemented low pass filter (290). The low pass filter uses strip line transmission lines (410, 510) which may utilize magnetic material (520, 720) to enhance the operation of the low pass filter. The class S amplifier and a transmission line filter provide an amplified, high fidelity replica of the input rf signal.

REFERENCES:
patent: 5160905 (1992-11-01), Hoang
patent: 5173671 (1992-12-01), Wendler et al.
patent: 5668511 (1997-09-01), Furutani et al.
patent: 5847602 (1998-12-01), Su
patent: 5861777 (1999-01-01), Sigmon et al.

Affiliated with

Also associated with

Rating

Class S radio frequency power amplifier does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Class S radio frequency power amplifier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Class S radio frequency power amplifier will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1968325