×

Impedance determining apparatus using quadrature current and peak detectors

  • US 5,206,600 A
  • Filed: 10/18/1991
  • Issued: 04/27/1993
  • Est. Priority Date: 10/18/1991
  • Status: Expired due to Term
First Claim
Patent Images

1. A system to compute the parameters of a complex load impedance comprising:

  • a signal source;

    a load;

    a transmission path for transmitting an RF signal from said signal source to said load;

    quadrature current samplers for providing measures of the current in the RF signal;

    a voltage sampler for providing a measure of the voltage in the RF signal;

    plural peak detectors to detect the peak of the measures of current and voltage;

    analog to digital converters to convert the signals output from the peak detectors to digital signals;

    a digital computational unit to compute the parameters of the impedance of the load from the digital signals and from a signal indicating the frequency of said RF signal sources.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×