Open AccessMiniature filtering power divider with increased isolation bandwidth
Author(s) -
Chao ShihFong,
Li YouRuei
Publication year - 2014
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2014.0458
Subject(s) - bandwidth (computing) , resistor , power dividers and directional couplers , isolation (microbiology) , electronic engineering , wilkinson power divider , resonator , inductor , band pass filter , capacitor , electrical engineering , engineering , frequency divider , voltage , telecommunications , microbiology and biotechnology , biology
A novel filtering power divider (PD) with an extended isolation bandwidth is proposed. Adopting a frequency‐dependent resistor–inductor–capacitor isolation network enabled designing and improving isolation performance. An embedded 90° filtering line was realised by employing two coupled quarter‐wavelength resonators to achieve a bandpass response and a compact circuit size. The filtering PD was designed and implemented at a centre frequency of 1 GHz, and the isolation bandwidth (> 20 dB) was extended from DC to 2.2 f 0 .