Resonant circuit using variable capacitance diode

Details Resonant circuit using variable capacitance diode Resonant circuit using variable capacitance diode

1975-03-24

1977-01-11

Chatmon, Jr., Saxfield

Tuners

Tuner unit directly responsive to voltage and/or current...

Reactance tuning

357 14, H03H 512, H03J 306, H03J 504

Patent

active

040030091

ABSTRACT:
A resonance circuit having an inductor, a capacitor and a semiconductor with a junction, and means for applying a signal to the semiconductor junction. The semiconductor junction satisfies the equation: ##EQU1## where C represents the capacitance of the semiconductor junction when a voltage V is applied thereto and the junction of the semiconductor is reverse biased, C' is a constant, and the inductor and capacitor are connected in series.

REFERENCES:
patent: 3409845 (1968-11-01), Ogi et al.
patent: 3535600 (1968-10-01), Engeler
patent: 3579278 (1971-05-01), Heer
patent: 3808472 (1974-04-01), Engeler
patent: 3813615 (1974-05-01), Okazaki
patent: 3825858 (1974-07-01), Amemiya et al.
"High Capacitance PN Junction Capacitors" by V. Y. Doo, IBM Technical Disclosure, vol. 9, No. 7, 12/66.

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