Multi-band amplifier module with harmonic suppression

Details Multi-band amplifier module with harmonic suppression Multi-band amplifier module with harmonic suppression

2011-04-12

2011-04-12

Le, Thanh C (Department: 2618)

Telecommunications

Transmitter

Having harmonic radiation suppression

C455S127400

Reexamination Certificate

active

07925227

ABSTRACT:
An amplifier circuit includes a first power amplifier that can produce a first amplified signal in response to a first input signal in a first frequency band, and a second power amplifier that can produce a second amplified signal in response to a second input signal in a second frequency band. A center frequency of the second frequency band is higher than the a center frequency of frequency band A control circuit can turn on or turn off the first power amplifier and configured to turn on or turn off the second power amplifier. A shunting circuit is coupled to an output of the second power amplifier. The shunting circuit can attenuate harmonic signals from the first frequency band under the control of the control circuit.

REFERENCES:
patent: 6151509 (2000-11-01), Chorey
patent: 6288606 (2001-09-01), Ekman et al.
patent: 6625470 (2003-09-01), Fourtet et al.
patent: 7155251 (2006-12-01), Saruwatari et al.
patent: 7580687 (2009-08-01), Ichitsubo et al.
patent: 2004/0127185 (2004-07-01), Abrahams

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