Method to increase the tuneability of varactors

Details Method to increase the tuneability of varactors Method to increase the tuneability of varactors

2011-05-03

2011-05-03

Pascal, Robert (Department: 2817)

Wave transmission lines and networks

Miscellaneous

Multipactor applications

C333S171000, C333S174000, C333S175000

Reexamination Certificate

active

07936235

ABSTRACT:
The present invention relates to a tunable circuit, or admittance, arrangement comprising at least one capacitive branch with at least a tunable first capacitor, and tuning application means. It further comprises at least one resonant branch comprising at least a second capacitor and an inductor, said second capacitor and said inductor being connected in series. Said at least one capacitive branch and said at least one resonant branch are connected in parallel, and said tuning application means are adapted for application of a DC tuning voltage. The capacitance of said first and/or second capacitor and/or the inductance of said inductor are selected such that the frequency dependency of the tunability of a varactor arrangement forming the equivalent varactor arrangement of the admittance arrangement can be controlled at least in a selected frequency range.

REFERENCES:
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patent: 5618777 (1997-04-01), Hey-Shipton et al.
patent: 6084486 (2000-07-01), Suzuki et al.
patent: 6088214 (2000-07-01), Malone et al.
patent: 6710693 (2004-03-01), Matsumoto et al.
patent: 7174147 (2007-02-01), Toncich et al.
patent: 7221327 (2007-05-01), Toncich
patent: 2312345 (1997-10-01), None

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