Wideband ladder filters fully covering digital TV band based on shear horizontal plate wave

Michio Kadota, Shuji Tanaka

研究成果: Conference contribution

5 被引用数 (Scopus)

抄録

A cognitive radio terminal using vacant frequency bands of digital TV channels, i.e. TV white space, strongly requires a compact tunable filter covering a wide frequency range of the digital TV band. The authors proposed a new bandwidth- and frequency-tunable filter combining an ultra-wideband ladder filter and tunable band rejection filters. T-type and ρ-type ladder filters composed of ultra-wideband 0th shear horizontal mode (SH0) plate wave resonators were fabricated on a submicron thick LiNbO3 plate supported by a Si substrate. The wavelength ratio of the parallel/series resonators in the ladder filters was changed as a design parameter. As a result, ultra-large 6 dB bandwidths of 41 to 51%, which fully cover the digital TV band, were measured. The lowest peak insertion loss was low as 0.8 dB. The ultra-wideband ladder filter is useful for the above-mentioned new tunable filter for digital TV cognitive radio communication.

本文言語English
ホスト出版物のタイトル2015 Joint Conference of the IEEE International Frequency Control Symposium and the European Frequency and Time Forum, FCS 2015 - Proceedings
出版社Institute of Electrical and Electronics Engineers Inc.
ページ412-415
ページ数4
ISBN(電子版)9781479988662
DOI
出版ステータスPublished - 2015 6月 29
イベント2015 Joint Conference of the IEEE International Frequency Control Symposium and the European Frequency and Time Forum, FCS 2015 - Denver, United States
継続期間: 2015 4月 122015 4月 16

出版物シリーズ

名前2015 Joint Conference of the IEEE International Frequency Control Symposium and the European Frequency and Time Forum, FCS 2015 - Proceedings

Other

Other2015 Joint Conference of the IEEE International Frequency Control Symposium and the European Frequency and Time Forum, FCS 2015
国/地域United States
CityDenver
Period15/4/1215/4/16

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信
  • 信号処理

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