Self-calibrating voltage standing-wave ratio meter system

Details Self-calibrating voltage standing-wave ratio meter system Self-calibrating voltage standing-wave ratio meter system

1979-11-21

1981-02-03

Ng, Jin F.

Telecommunications

Transmitter

Measuring, testing, or monitoring of transmitter

324 58B, H04B 1700

Patent

active

042492580

ABSTRACT:
A circuit for use in connection with a meter for measuring the voltage standing-wave ratio (VSWR) along a transmission line wherein forward and reflected voltages in the transmission line are coupled off and detected by two respective diodes. Calibration of the two diode detected forward and reverse voltages occurs in a series of resistor-diode combinations before they are fed onto the base and collector, respectively, of a transistor. A meter connected between the collector and emitter of the transistor measures the voltage drop across the transistor and this value is proportional to the voltage standing-wave ratio.

REFERENCES:
patent: 3020529 (1962-02-01), Turner
patent: 3842358 (1974-10-01), Frazier
patent: 3870957 (1975-03-01), Straw
patent: 4041395 (1977-08-01), Hill

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