Adjustable resonator arrangement

Details Adjustable resonator arrangement Adjustable resonator arrangement

1992-06-25

1994-03-29

Nelli, Raymond A.

Wave transmission lines and networks

Resonators

With tuning

333202, 333223, H01P 700

Patent

active

052988732

ABSTRACT:
An adjustable resonator arrangement comprises a main resonator (T1) and a secondary resonator (T2) reactively coupled thereto. The secondary resonator includes a switching element (S), e.g. a varactor, having at least two states. When the switching element is in a first state the secondary resonator behaves as a half-wave resonator having a resonant frequency f.sub.o substantially different to the resonant frequency f of the main resonator. Consequently the secondary resonator has no appreciable affect on the resonant frequency of the main resonator. However, when the switching element is in a second state, the secondary resonator behaves as a quarter-wave resonator having a resonant frequency 2*f.sub.o which is closer to the inherent frequency f of the main resonator and sufficiently close to cause a shift .DELTA.f in the effective frequency of the main resonator. Suitably the main resonator is realized as a dielectric resonator and the secondary resonator is realized as a strip line resonator in the form of a conductive strip provided on a side face of the dielectric block from which the main resonator is formed.

REFERENCES:
patent: 3202945 (1965-08-01), Tachizawa et al.
patent: 3766494 (1973-10-01), Anbe et al.
patent: 4028652 (1977-06-01), Wakino et al.
patent: 4255729 (1981-03-01), Fukasawa et al.
patent: 4431977 (1984-02-01), Sokola et al.
patent: 4434410 (1984-02-01), Miyake et al.
patent: 4559508 (1985-12-01), Nishikawa et al.
patent: 4623856 (1986-11-01), Bickley et al.
patent: 4692726 (1987-09-01), Green et al.
patent: 4703291 (1987-10-01), Nishikawa et al.
patent: 4716391 (1987-12-01), Moutrie et al.
patent: 4740765 (1988-04-01), Ishikawa et al.
patent: 4800347 (1989-01-01), Yorita et al.
patent: 4800348 (1989-01-01), Rosar et al.
patent: 4821006 (1989-04-01), Ishikawa et al.
patent: 4829274 (1989-05-01), Green et al.
patent: 4835498 (1989-05-01), Rouger et al.
patent: 4954796 (1990-09-01), Green et al.
patent: 4992737 (1991-02-01), Schnur
patent: 5049842 (1991-09-01), Ishikawa et al.
patent: 5066934 (1991-11-01), Ito et al.
patent: 5075653 (1991-12-01), Ito et al.
patent: 5103197 (1992-04-01), Turunen et al.
Patent Abstracts of Japan--vol. 7, No. 292 (E-219)(1437) Dec. 27, 1983 & JP-A-58-168 302 (Fujitsu K.K.) Oct. 4, 1983.
Patent Abstracts of Japan--vol. 5, No. 11 (E-42)(683) Jan. 23, 1981 & JP-A-55 141 802 (Alps Denki K.K.) Nov. 6, 1980.
Patent Abstracts of Japan--vol. 12, No. 106 (E-596)(2953) Apr. 6, 1988 & JP-A-62 235 801 (Fuji Electrochem Co., Ltd.) Oct. 16, 1987.

Affiliated with

Also associated with

Rating

Adjustable resonator arrangement does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adjustable resonator arrangement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adjustable resonator arrangement will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-794988