Spurious suppression of a microstrip bandpass filter using three types of rectangular PBG loops

Min Hung Weng, Ru Yung Yuan, Tsung Hui Huang, Han Jan Chen, Wu Nan Chen, Mau Phon Houng

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

A novel microstrip bandpass filter with three types of rectangular, photonic bandgap (PBG) loops on a middle layer was designed and demonstrated using a full-wave electromagnetic (EM) simulator, with the predicted results verified by experiment. This investigation presents the configurations of conventional parallel-coupled 2 GHz filters with and without a PBG. The middle-layer of PBG loops adds an extra stopband-rejection mode to filter stopband; and it provides attenuation in excess of 25 dB at the second, third, and fourth harmonics, thus demonstrating that superior stopband characteristics at high frequency can be obtained using the proposed PBG loops in microwave filters.

Original languageEnglish
Pages (from-to)487-490
Number of pages4
JournalIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Volume52
Issue number3
DOIs
Publication statusPublished - 2005 Mar 1

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Acoustics and Ultrasonics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Spurious suppression of a microstrip bandpass filter using three types of rectangular PBG loops'. Together they form a unique fingerprint.

Cite this