A CPW hybrid coupler with an enhanced coupling micro structure

Yusuke Kitsukawa*, Masatake Hangai, Sang Seok Lee, Tamotsu Nishino, Yukihisa Yoshida, Moriyasu Miyazaki

*この研究の対応する著者

研究成果: Conference contribution

4 被引用数 (Scopus)

抄録

A new micromachined coplanar waveguide (CPW) 3-dB hybrid coupler has been demonstrated. A micromachined enhanced coupling structure at the middle of two coupled transmission lines is employed to obtain high directivity. The coupling structure is composed of alternately overlapping plated conductors employing micromachined air-gap structures. This structure relaxes the tolerance of the gap between the coupled transmission lines, and mitigates production error. Moreover, this coupling structure enhances the coupler directivity by equalizing phase velocities of both evenand odd modes. We fabricate the CPW hybrid coupler with the enhanced coupling structure on a silicon substrate to verify the performance. The results showed the return loss of better than 28dB, the isolation of more than 25dB over 11 to 15 GHz.

本文言語English
ホスト出版物のタイトル2006 Asia-Pacific Microwave Conference Proceedings, APMC
ページ807-810
ページ数4
DOI
出版ステータスPublished - 2006
外部発表はい
イベント2006 Asia-Pacific Microwave Conference, APMC - Yokohama, Japan
継続期間: 2006 12月 122006 12月 15

出版物シリーズ

名前Asia-Pacific Microwave Conference Proceedings, APMC
2

Other

Other2006 Asia-Pacific Microwave Conference, APMC
国/地域Japan
CityYokohama
Period06/12/1206/12/15

ASJC Scopus subject areas

  • 工学(全般)

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