Dual mode generating line coupled to a dual mode ring...

Details Dual mode generating line coupled to a dual mode ring... Dual mode generating line coupled to a dual mode ring...

2011-07-12

2011-07-12

Lee, Benny (Department: 2817)

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

C333S219000, C333S0990MP

Reexamination Certificate

active

07978028

ABSTRACT:
At a first coupling point on a ring resonator having a ring-shaped transmission line, an input feeder is electromagnetically coupled with the ring resonator. An output feeder is electromagnetically coupled with the ring resonator at a second coupling point on the ring resonator. A dual mode generating line is disposed in an inner area of the ring resonator. One end of the dual mode generating line is electromagnetically coupled with the ring resonator at a third coupling point on the ring resonator, and the other end is electromagnetically coupled with the ring resonator at a fourth coupling point on the ring resonator distant from the third coupling point by half of a transmission line length of the ring resonator.

REFERENCES:
patent: 5400002 (1995-03-01), Takahashi et al.
patent: 2008/0297284 (2008-12-01), Ishii et al.
patent: 09-139612 (1997-05-01), None
patent: 2000-209002 (2000-07-01), None

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