Simple method for a K-band SIW filter with dual-mode quasielliptic function response

Tsung Hui Huang, Chin Sheng Chang, Han Jan Chen, Lih Shan Chen, Jui Hong Horng, Yeong-Her Wang, Mau-phon Houng

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


A simple method for a K-band substrate integrated waveguide (SIW) filter with dual-mode response quasi-elliptic function response is designed, fabricated, and measured around 20 GHz. By using an orthogonal input and output (I/O) feed-line and adjusting a perturbation, the proposed filter with two transmission-zeros are so close to the passband that the selectivity and out-of-band rejection of the filter are significantly increased. The designed filter demonstrates the superior passband characteristics with a measured central frequency fo = 20 GHz, the insertion loss S21 = -2.9 dB, the return loss S11 = -23.5 dB. Experimental results of the fabricated filter measured by network analyzer are well agreed with the simulation results.

Original languageEnglish
Pages (from-to)1246-1249
Number of pages4
JournalMicrowave and Optical Technology Letters
Issue number6
Publication statusPublished - 2007 Jun 1

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics


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