Planar filter with ferroelectric and/or antiferroelectric elemen

Details Planar filter with ferroelectric and/or antiferroelectric elemen Planar filter with ferroelectric and/or antiferroelectric elemen

1997-05-21

2000-04-11

Lee, Benny T.

Superconductor technology: apparatus, material, process

High temperature devices, systems, apparatus, com- ponents,...

High frequency waveguides, resonators, electrical networks,...

333 99S, 333205, H01P 1203, H01B 1202

Patent

active

060497262

ABSTRACT:
An electrically tunable planar filter has a filter element including a substrate having an upper side and a wave-guide arranged on the upper side of the substrate, at least one tuning element composed of at least one material selected from the group consisting of a ferroelectric material and an antiferroelectric material with adjustable voltage applied to the tuning element and thereby with an adjustable dielectric constant, the tuning element being arranged at the upper side of the substrate.

REFERENCES:
patent: 5472935 (1995-12-01), Yandrofski et al.
patent: 5617104 (1997-04-01), Das
patent: 5694134 (1997-12-01), Barnes
patent: 5965494 (1999-10-01), Terashima et al.

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