Polar dielectric filter and dielectric duplexer incorporating sa

Details Polar dielectric filter and dielectric duplexer incorporating sa Polar dielectric filter and dielectric duplexer incorporating sa

1997-12-02

1999-11-02

Ham, Seungsook

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333134, H01P 1205

Patent

active

059778482

ABSTRACT:
A polar band-pass dielectric filter including three coaxial dielectric resonators each including a main body in the form of a dielectric member, the main body being formed with a through bore extending through opposite end faces thereof, the main body having an outer conductor layer provided over an outer peripheral surface thereof and an inner conductor layer over an inner surface thereof defining the through bore. The resonators are joined to one another with one side of an outer periphery surface of each resonator serving as a joint surface. Each of the resonators has an electrode insulated from the outer conductor layer and provided at a portion of the outer peripheral surface thereof other than the joint surface. The electrodes of the resonators are connected together by a substantially straight conductor member.

REFERENCES:
patent: 4673902 (1987-06-01), Takeda et al.
patent: 5365209 (1994-11-01), Ito et al.
patent: 5402090 (1995-03-01), Shimizu et al.
patent: 5499004 (1996-03-01), Noguchi et al.
patent: 5534829 (1996-07-01), Kobayashi et al.
patent: 5546059 (1996-08-01), Yorita et al.
patent: 5572175 (1996-11-01), Tada et al.
patent: 5783978 (1998-07-01), Noguchi et al.

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