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

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

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

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.

Original languageEnglish
Title of host publicationProceedings of APCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems
Pages86-89
Number of pages4
DOIs
StatePublished - 2008
EventAPCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems - Macao, China
Duration: 30 Nov 20083 Dec 2008

Publication series

NameIEEE Asia-Pacific Conference on Circuits and Systems, Proceedings, APCCAS

Conference

ConferenceAPCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems
Country/TerritoryChina
CityMacao
Period30/11/083/12/08

Fingerprint

Dive into the research topics of 'Q-band bandpass filter designs in heterodyne receiver for radio astronomy'. Together they form a unique fingerprint.

Cite this