Amplifiers – With plural amplifier channels – Amplifying different frequencies in different channels
Reexamination Certificate
2007-04-10
2007-04-10
Shingleton, Michael B (Department: 2817)
Amplifiers
With plural amplifier channels
Amplifying different frequencies in different channels
C330S192000, C330S302000, C330S305000, C330S306000, C330S284000, C455S074000
Reexamination Certificate
active
09610933
ABSTRACT:
A circuit and method for electronically tuning an RF power amplifier. The output filter includes at least one electronically variable reactance. The electronically tuned power amplifier may be tuned rapidly to a selected frequency, to a selected impedance, or to produce a selected output amplitude. An optional controller translates frequency, impedance, or modulation inputs into tuning signals. High-efficiency, wideband amplitude modulation is produced by varying the amplifier load impedance along preferred loci.
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Leas James Marc
Shingleton Michael B
Touw Theodore R.
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