High-order superconducting filter with group delay equalization

Jia Sheng Hong, Eamon P. McErlean, Bindu Karyamapudi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

27 Citations (Scopus)

Abstract

This paper reports recent development of an eighteen-pole high temperature superconducting (HTS) bandpass filter with group delay self-equalization. The filter is designed to have a 15 MHz pass band at a center frequency of 1967.5 MHz. The filter exhibits a quasi-elliptic function response implemented with a cascaded quadruplet coupling structure. Two particular cross coupled quadruplet realizations have been developed to implement either attenuation poles at finite frequencies or linear phase for group delay self-equalization. The filter was fabricated on a 0.43mm-thick sapphire wafer with double-sided YBCO films. Measured responses are presented to demonstrate the validity of the design as well as the potential of the filter. © 2005 IEEE.

Original languageEnglish
Title of host publication2005 IEEE MTT-S International Microwave Symposium Digest
Pages1467-1470
Number of pages4
Volume2005
DOIs
Publication statusPublished - 2005
Event2005 IEEE MTT-S International Microwave Symposium - Long Beach, CA, United States
Duration: 12 Jun 200517 Jun 2005

Conference

Conference2005 IEEE MTT-S International Microwave Symposium
CountryUnited States
CityLong Beach, CA
Period12/06/0517/06/05

Keywords

  • Group delay equalization
  • Linear phase filters
  • Microstrip filters
  • Superconducting filters

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