Microwave filters with improved spurious performance based on sandwiched conductor dielectric resonators

A. R. Weily*, A. S. Mohan

*Corresponding author for this work

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Microwave filters based on a novel resonator comprised of a sandwiched conductor dielectric resonator (SCDR) loaded in a cylindrical cavity are analyzed in this paper. The SCDR is a compact resonator that exhibits good spurious performance. Resonant frequencies of the lower order modes are analyzed, and mode charts, unloaded Q, slot coupling, and screw coupling graphs are presented. S-parameters are computed using the finite-difference time-domain (FDTD) method for one- and four-pole SCDR filters and compared with measured results. The measured spurious performance for the four-pole elliptic function filter shows a large improvement over conventional dielectric-resonator filters. The measured results agree closely with predicted values obtained using the FDTD method.

Original languageEnglish
Pages (from-to)1501-1507
Number of pages7
JournalIEEE Transactions on Microwave Theory and Techniques
Volume49
Issue number8
DOIs
Publication statusPublished - Aug 2001

Keywords

  • Dielectric-resonator filter
  • FDTD analysis
  • Mode chart
  • Sandwiched conductor dielectric resonator
  • Spurious performance

Fingerprint Dive into the research topics of 'Microwave filters with improved spurious performance based on sandwiched conductor dielectric resonators'. Together they form a unique fingerprint.

Cite this