Method and apparatus for intermodulation noise suppression in RF power amplifiers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 27, 1999
Grant Date -
N/A
app pub date -
Apr 2, 1992
filing date -
Apr 2, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An apparatus and method for suppressing intermodulation noise in a radio frequency power amplifier. Intermodulation noise suppression is achieved by use of an amplitude limiter connected to the signal source and a shaping filter connected between the amplitude limiter and the power amplifier. The shaping filter may be a band-stop notch filter which attenuates intermodulation noise in a selected radio band or a bandpass filter which attenuates all out-of-band intermodulation noise. The intermodulation noise suppression of this invention causes the signal entering the power amplifier to be characterized by (1) a low peak-to-average envelope distribution and (2) low spectral content in the radio frequency bands to be protected.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully