Wide-stopband Wilkinson power divider with bandpass response

W. M. Chau, K. W. Hsu, W. H. Tu

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


A wide-stopband Wilkinson power divider with bandpass response and good isolation is presented. A 3-terminal, 2-pole bandpass filter and two 3-pole lowpass filters are used to replace the two quarter-wavelength transformer in a conventional Wilkinson power. The divider consists of two shorted-circuited half-wavelength stepped-impedance resonators and two 3-pole microstrip stepped-impedance lowpass filters. Thus, the divider achieves not only a bandpass response but also a very wide stopband. For the upper stopband performance, the rejection level is >10 dB up to 22.2 times the centre frequency.

Original languageEnglish
Pages (from-to)39-40
Number of pages2
JournalElectronics Letters
Issue number1
StatePublished - 2 Jan 2014


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