Superconductor technology: apparatus – material – process – High temperature devices – systems – apparatus – com- ponents,... – High frequency waveguides – resonators – electrical networks,...
Patent
1997-02-28
2000-01-04
Lee, Benny T.
Superconductor technology: apparatus, material, process
High temperature devices, systems, apparatus, com- ponents,...
High frequency waveguides, resonators, electrical networks,...
505700, 505866, 333 99005, 333208, 333212, 333248, H01P 1207, H01B 1202
Patent
active
060119837
ABSTRACT:
An NRD waveguide band-pass filter apparatus is provided which is simple in construction, which can be easily manufactured as well as being small in size and light in weight, and which operates in a single operating mode. The NRD waveguide band-pass filter apparatus includes a plurality of NRD waveguide resonators arrayed in such a way that each two adjacent NRD waveguide resonators are electromagnetically coupled to each other. A plurality of arrayed rectangular dielectric waveguides are interposed between an upper surface portion and a lower surface portion of a rectangular dielectric housing, which are parallel to each other. The upper surface portion and the lower surface portion and the plurality of arrayed rectangular dielectric waveguides are formed integrally, thus forming the housing. A first superconducting electrode and a second superconducting electrode are formed on the outer surfaces of the upper surface portion and the lower surface portion, respectively. By setting the spacing between the first and second superconducting electrodes at one-half or less of the wavelength of the resonance frequency in a vacuum of the present apparatus, the portions outside of each dielectric waveguide form cut-off regions.
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Hidaka Seiji
Ishikawa Yohei
Matsui Norifumi
Lee Benny T.
Murata Manufacturing Co. Ltd.
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