Reduced current antenna circuit
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United States of America Patent
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-
Feb 20, 1996
Issued Date -
N/A
app pub date -
May 10, 1995
filing date -
Oct 26, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An alternative resonant circuit configuration reduces the amount of RF current that is switched by the power-stage transistors of a T/R unit and thereby also significantly reduces the reliability risk. A parallel resonant antenna configuration of coils and capacitors reduces the RF current through the output stage push-pull transistor configuration to a small fraction of the RF current experienced by typical series resonant circuits. This circuit offers advantages of low cost, reliable impedance matching while reducing the volume necessary to perform the function.
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