Triple mode spiral wideband bandpass filter using symmetric dual-line coupling

A. Lalbakhsh, G. Karimi*, F. Sabaghi

*Corresponding author for this work

Research output: Contribution to journalArticle

8 Citations (Scopus)


A compact wideband bandpass filter at the centre frequency of 5.77 GHz with 78% fractional bandwidth is presented. An especial coupling structure along with a novel triple mode spiral resonator designed based on modal analysis is used to provide a flat wide passband with excellent skirt characteristics. To verify the efficiency of the filter, a prototype is fabricated, tested and compared with some of the most recent works.

Original languageEnglish
Pages (from-to)795-796
Number of pages2
JournalElectronics Letters
Issue number12
Publication statusPublished - 8 Jun 2017
Externally publishedYes


Cite this