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Tunable microwave devices with auto-adjusting matching circuit

  • US 7,865,154 B2
  • Filed: 10/08/2005
  • Issued: 01/04/2011
  • Est. Priority Date: 07/20/2000
  • Status: Expired due to Term
First Claim
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1. An apparatus, comprising:

  • an input port;

    a dynamic impedance matching network capable of determining a mismatch at said input port and dynamically changing the RF match by using at least one matching element that includes at least one voltage tunable dielectric capacitor;

    at least one directional coupler capable of signal collection by sampling a portion of an incident signal, a reflected signal or both; and

    a control and power control &

    logic unit (PC LU) to convert input analog signals into digital signals and sensing VSWR phase and magnitude and processing said digital signals using an algorithm that produces voltage values and wherein said voltage values are determined from a comparison of values coming from said coupler and once compared, said voltage values are passed to a high voltage circuit to transfer and distribute compensatory voltages to said matching network elements.

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