Wave transmission lines and networks – Coupling networks – Wave filters including long line elements
Patent
1996-03-06
1998-04-21
Lee, Benny
Wave transmission lines and networks
Coupling networks
Wave filters including long line elements
333206, H01P 120
Patent
active
057422141
ABSTRACT:
In a dielectric filter having plural resonator cavities and at least one resonator cavity comprising a large inner-diameter portion, a small inner-diameter portion and a step portion formed between the large and small portions, an inner conductor being formed on the inner surface of each of the resonator cavities and an outer conductor being formed on the outer surface of the dielectric block. The large portion and the small portion of the at least one resonator cavity having the step portion are designed to have different sectional shapes, and may be either coaxial or non-coaxial.
REFERENCES:
patent: 5124676 (1992-06-01), Ueno
patent: 5208566 (1993-05-01), Kenoun et al.
patent: 5517163 (1996-05-01), Sagawa et al.
Matsumoto Haruo
Toda Jun
Lee Benny
Murata Manufacturing Co. Ltd.
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