Q-band bandpass filter designs in heterodyne receiver for radio astronomy

Yo Shen Lin, Yu Shu Hsieh, Yuh Jing Hwang, Chau Ching Chiong

研究成果: 書貢獻/報告類型會議論文篇章同行評審

7 引文 斯高帕斯(Scopus)

摘要

This paper presents two Q-band bandpass filter designs that are targeted for application in the Atacama Large Millimeter-wave and Submillimeter-wave Array (ALMA) radio telescope. The bandpass filter is required to reject the lower side band from 15.2∼29GHz and retain minimum loss across the passband of 31.3∼45GHz. The bandpass filter based on WR22 waveguide is first presented. Specifically, the measured in-band insertion loss is around 0.4 dB, and the rejection of lower sideband is better than 34dB. To further reduce the circuit size and to ease the integration with other MMICs in the receiver, a planar filter design based on GaAs process is also demonstrated. It will be applied to the multi-chip module version of the heterodyne receiver design to achieve more compact module size.

原文???core.languages.en_GB???
主出版物標題Proceedings of APCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems
頁面86-89
頁數4
DOIs
出版狀態已出版 - 2008
事件APCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems - Macao, China
持續時間: 30 11月 20083 12月 2008

出版系列

名字IEEE Asia-Pacific Conference on Circuits and Systems, Proceedings, APCCAS

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???event.eventtypes.event.conference???APCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems
國家/地區China
城市Macao
期間30/11/083/12/08

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