Wilkinson power divider using microstrip EBG cells for the suppression of harmonics

Chih Ming Lin, Hsuan Hung Su, Jui Chieh Chiu, Yeong Her Wang

Research output: Contribution to journalArticlepeer-review

91 Citations (Scopus)


This letter presents a planar power divider with an effective technique for nth harmonics suppression. The proposed technique served by a microstrip electromagnetic bandgap cell is used to suppress the nth harmonics and reduce the length of a quarter-wave line over 30% as compared to the conventional divider. The planar structure enables an easy circuit design in printed circuit boards. From the measured results, a 32.5 dB suppression for the third harmonic and a 12 dB suppression for the fifth harmonic is obtained while maintaining the characteristics of a conventional Wilkinson power divider. It is able to achieve less than 3.4 ± 0.1 dB of the two equivalent insertion losses, less than 23 dB of the return loss, and better than 25 dB of isolation at 2.4 GHz.

Original languageEnglish
Pages (from-to)700-702
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Issue number10
Publication statusPublished - 2007 Oct

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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