Direct RF under sampling reception method with lower sampling frequency

Daliso Banda, Osamu Wada, Tuan Thanh Ta, Suguru Kameda, Noriharu Suematsu, Kazuo Tsubouchi

研究成果: Conference contribution

5 被引用数 (Scopus)


In conventional RF under sampling front ends the sampling frequency is greater than the anti-aliasing filter's bandwidth, which is usually larger than the desired signals bandwidth. In this paper a technique for lowering the sampling frequency required for an RF under sampling receiver is presented. Mathematical expressions to ensure that signal integrity is preserved have been derived. Using these expressions the minimum sampling frequency required is halved. To validate the technique, simulation and measurement of a front-end using the conventional and the proposed techniques has been performed. In the simulation the conventional and proposed techniques achieved SNRs of 22.8 dB and 22.4 dB respectively. The measured SNR for the conventional technique was 19.8 dB and 20.3 dB for the proposed. Using QPSK modulation the EVM was measured to be -19.8 dB for the conventional and -19.5 dB for the proposed techniques.

ホスト出版物のタイトル2013 Asia-Pacific Microwave Conference Proceedings, APMC 2013
出版ステータスPublished - 2013 12月 1
イベント2013 3rd Asia-Pacific Microwave Conference, APMC 2013 - Seoul, Korea, Republic of
継続期間: 2013 11月 52013 11月 8


名前Asia-Pacific Microwave Conference Proceedings, APMC


Conference2013 3rd Asia-Pacific Microwave Conference, APMC 2013
国/地域Korea, Republic of

ASJC Scopus subject areas

  • 電子工学および電気工学


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