MINIATURIZED MICROWAVE FILTER CONSTRUCTION WITH DIELECTRIC-LOADED RESONATOR AND SPACE COUPLING.

Atsushi Fukasawa*, Takuro Sato, Kenichiro Hosoda

*この研究の対応する著者

研究成果: Conference article査読

3 被引用数 (Scopus)

抄録

A new filter construction is proposed to realize a highly miniaturized microwave bandpass filter. An element of resonator filter is composed of a square dielectric post and a round inner conductor. Each element of resonator is located in a housing similar to a conventional combline filter; however, the length of a resonator is basically a quarter wavelength. The higher unloaded Q and a larger inter-resonator coupling were implemented through two factors: open-boundary condition on the periphery along the dielectric post and the air spacing between resonators. Five-stage Chebyshev response bandpass filters were developed at 800 MHz to have 20 approximately equals 30 MHz passband and 0. 8 approximately equals 1. 0 db insertion loss at the temperature range: minus 35 approximately equals plus 80 degree C. The volume and the weight of the filters are about 25 cm**3 and 60 g respectively.

本文言語English
ページ(範囲)209-211
ページ数3
ジャーナルIEEE MTT-S International Microwave Symposium Digest
出版ステータスPublished - 1981 1 1
外部発表はい
イベントIEEE MTT S Int Microwave Symp Dig 1981 - Los Angeles, CA, USA
継続期間: 1981 6 151981 6 19

ASJC Scopus subject areas

  • 放射線
  • 凝縮系物理学
  • 電子工学および電気工学

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