Dielectric filters with a single through-hole

Details Dielectric filters with a single through-hole Dielectric filters with a single through-hole

1991-07-16

1992-11-24

Laroche, Eugene R.

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333206, H01P 120, H01P 1202

Patent

active

051666499

ABSTRACT:
This invention offers a compact and high performance dielectric filter consisting of a quarter wavelength dielectric body provided with a through-hole between the upper and lower surfaces of the dielectric body, electrodes deposited on external and lower surfaces of the dielectric body, and at least two independent electrodes provided on an internal surface of the through-hole, extending to the upper and lower surfaces of the dielectric body. With this dielectric filter construction, the through-hole performs the role of constructing plural quarter wavelength resonators and performs, at the same time, the role of adjusting the coupling between the plural resonators, thus yielding a compact dielectric filter of simple construction.

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