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Transmission-line resistance compression networks and related techniques

  • US 9,531,291 B2
  • Filed: 04/17/2014
  • Issued: 12/27/2016
  • Est. Priority Date: 06/25/2012
  • Status: Active Grant
First Claim
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1. A circuit comprising:

  • first and second loads having substantially the same input impedances under substantially the same operating conditions; and

    a transmission-line resistance compression network, including;

    an input port;

    a first output port coupled to the first load;

    a second output port coupled to the second load; and

    a transmission-line network coupled to the input port, the first output port, and the second output port, the transmission-line network comprising at least two transmission lines of different lengths;

    wherein, for a first operating range, the resistances at input ports of the first and second loads vary over first and second ratios, respectively, the resistance of the input impedance at the input port of the transmission-line resistance compression network varies over a third ratio, and the third ratio is smaller than at least one of the first and second ratios.

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