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Systems and methods of RF power transmission, modulation, and amplification, including multiple input single output (MISO) amplifier embodiments comprising harmonic control circuitry

  • US 7,672,650 B2
  • Filed: 12/12/2006
  • Issued: 03/02/2010
  • Est. Priority Date: 10/22/2004
  • Status: Active Grant
First Claim
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1. An apparatus for power transmission, modulation, and amplification, comprising:

  • a transfer function module;

    modulation circuitry coupled to said transfer function module;

    a power amplification stage coupled to said modulation circuitry;

    wherein said power amplification stage comprises a plurality of power amplifiers having outputs that are coupled to form an output of said apparatus; and

    harmonic control circuitry;

    wherein said harmonic control circuitry comprises a plurality of harmonic control circuit networks coupled to inputs of said power amplifiers, wherein said harmonic control circuit networks enable a staggered-bias of said power amplifiers and operate to increase real power transfer to a fundamental frequency of said output and to decrease real power transfer to harmonic frequencies of said output.

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