Power detector for mismatched load

Details Power detector for mismatched load Power detector for mismatched load

2007-01-16

2007-01-16

Nguyen, Khanh Van (Department: 2817)

Amplifiers

With control of power supply or bias voltage

With control of input electrode or gain control electrode bias

C330S129000, C330S278000

Reexamination Certificate

active

11071122

ABSTRACT:
A method for measuring the forward power output of an amplifier with improved accuracy with a mismatched load based on probing the amplitude of the AC voltage and current in the final amplifier stage. Amplitudes are combined resulting in a composite reading that is affected less by load mismatch. Variations include measuring signal amplitude at two points 90 degrees apart in the transmission medium and measuring the power supply voltage and current of a saturated amplifier.

REFERENCES:
patent: 5038112 (1991-08-01), O'Neill
patent: 5423081 (1995-06-01), Thiele et al.
patent: 6639471 (2003-10-01), Matsuura et al.
patent: 6960956 (2005-11-01), Pehlke et al.

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