Dielectric filter including an adjusted inner electrode and a co

Details Dielectric filter including an adjusted inner electrode and a co Dielectric filter including an adjusted inner electrode and a co

1996-02-20

1998-10-27

Ham, Seungsook

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333223, H01P 1205

Patent

active

058282750

ABSTRACT:
A dielectric filter is made of a dielectric material and includes a molded member of a pillar shape which has a hole formed from the top surface thereof toward the inside, an inner electrode formed so as to cover the inner circumferential surface of the hole; an outer electrode provided so as to cover the outer surface of the molded member except a prescribed region, and a coupling electrode provided at least in a portion of the prescribed region. An electrode area of a region of the inner electrode which faces against the coupling electrode is adjusted, thereby adjusting the coupling capacitance which is formed between the inner electrode and the coupling electrode.

REFERENCES:
patent: 4431977 (1984-02-01), Sokola et al.
patent: 4673902 (1987-06-01), Takeda et al.
patent: 5146193 (1992-09-01), Sokola
patent: 5175520 (1992-12-01), Inoue
patent: 5436602 (1995-07-01), McVeety et al.
patent: 5499004 (1996-03-01), Noguchi et al.
patent: 5563561 (1996-10-01), Ishihara et al.
patent: 5629656 (1997-05-01), Tada et al.

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