Open AccessWide‐stopband Wilkinson power divider with bandpass response
Author(s) -
Chau W.M.,
Hsu K.W.,
Tu W.H.
Publication year - 2014
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2013.3264
Subject(s) - stopband , band pass filter , wilkinson power divider , microstrip , power dividers and directional couplers , electronic engineering , frequency divider , physics , optics , engineering
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.