Dual mode ring resonator filter with a dual mode generating...

Details Dual mode ring resonator filter with a dual mode generating... Dual mode ring resonator filter with a dual mode generating...

2011-03-08

2011-03-08

Lee, Benny (Department: 2817)

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

C333S219000, C333S0990MP, C333S205000, C505S210000

Reexamination Certificate

active

07902945

ABSTRACT:
A dual-mode filter capable of providing a high degree of design freedom and/or tunability is disclosed. The dual-mode filter includes a ring resonator; an input feeder and an output feeder disposed substantially orthogonal with respect to each other and with respect to the ring resonator so as to be electromagnetically coupled to the ring resonator; and a dual-mode generating line disposed inside the ring resonator in a manner so that the dual-mode generating line does not overlap with a line extending from the input feeder or a line extending from the output feeder.

REFERENCES:
patent: 5172084 (1992-12-01), Fiedziuszko et al.
patent: 5400002 (1995-03-01), Takahashi et al.
patent: 6360112 (2002-03-01), Mizuno et al.
patent: 09-139612 (1997-05-01), None
patent: 2000-209002 (2000-07-01), None
patent: 3304724 (2002-07-01), None
patent: 2006-115416 (2006-04-01), None

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