Circuit for tunable radio-frequency circuits
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United States of America Patent
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-
Jan 18, 1983
Grant Date -
N/A
app pub date -
Nov 10, 1980
filing date -
Nov 10, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A circuit is provided for frequency drift compensation of a tuning diode in tunable RF-circuits, and comprises a temperature-responsive voltage divider coupled between an independent voltage supply source and a reference potential, the tuning diode being coupled to a tap of the voltage divider. In this circuit the separate tuning voltage source is not loaded down and may thus produce a tuning voltage which is independent of the variation of the voltage from the temperature compensation portion of the circuit.
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