Wave transmission lines and networks – Automatically controlled systems – Impedance matching
Patent
1984-03-19
1986-11-04
LaRoche, Eugene R.
Wave transmission lines and networks
Automatically controlled systems
Impedance matching
333 32, H03H 740
Patent
active
046212426
ABSTRACT:
An R.F. impedance match control system. The reflection coefficient of the system is compared to a threshold to determine a mismatch condition which is corrected by selectively changing in incremental steps the turns ratio of an autotransformer provided at the input to the load until the mismatch condition is corrected. Timing means are provided to delay each mismatch correction until initial transient conditions are stabilized and to shut off R.F. power during each turns ratio change.
REFERENCES:
patent: 3601717 (1971-08-01), Kuecken
patent: 3775707 (1973-11-01), Frazier
patent: 3842358 (1974-10-01), Frazier
patent: 3870957 (1975-03-01), Straw
patent: 4015223 (1977-03-01), Chezl
patent: 4375051 (1983-02-01), Theall
Gustin Michael J.
Ludwig Hans G.
Theall, Jr. C. Earle
Grimes Edwin T.
LaRoche Eugene R.
Lee Benny
Masselle Francis L.
Murphy Thomas P.
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