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Design and Analysis of High Selectivity THz Filters for Astronomical Observation System Including Power Handling Analysis

  • Ayesha Kosar Fahad
  • , Cunjun Ruan
  • , Tanveer Ul Haq
  • , Shahidullah Khan
  • Beihang University

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

Abstract

This paper presents design of a high selectivity band pass filter having centre frequency as 0.22 THz and bandwidth as 10 GHz. Filter is designed using TE102 resonator and is implemented as 12th order direct coupled waveguide structure coupled through inductive windows. More than 110 dB suppression is found at ±5 GHz from pass band edges which shows that filter has very good selectivity (22 dB/GHz) around near out-of-band. Filter sensitivity and power handling analyses are carried out in HFSS and it is found that ±5μm precision with ±2μm surface roughness for machining doesn't significantly affect the response of the filter yet the filter is able to handle around 80Watts of power.

Original languageEnglish
Title of host publication11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies, UCMMT 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538674970
DOIs
StatePublished - Sep 2018
Event11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies, UCMMT 2018 - HangZhou, China
Duration: 5 Sep 20187 Sep 2018

Publication series

Name11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies, UCMMT 2018 - Proceedings

Conference

Conference11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies, UCMMT 2018
Country/TerritoryChina
CityHangZhou
Period5/09/187/09/18

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