Open AccessWideband filtering power divider with high selectivity
Author(s) -
Zhang Bo,
Liu Yuanan
Publication year - 2015
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.2015.2706
Subject(s) - wideband , power dividers and directional couplers , wilkinson power divider , power (physics) , selectivity , computer science , electronic engineering , electrical engineering , frequency divider , telecommunications , engineering , physics , biochemistry , chemistry , catalysis , quantum mechanics
A wideband filtering power divider (PD) with high selectivity is introduced, based on a terminated coupled line structure. The bandwidth tuning, isolation and impedance matching performances optimisation are presented and explained. Finally, the filtering PD is designed and implemented with a centre frequency ( f 0 ) of 3.0 GHz and a fractional bandwidth of 70%. The upper stopband is achieved up to 2.6 f 0 , with a rejection of better than 13 dB. The measured minimum in‐band insertion loss is 0.3 dB (not including the splitting loss). Isolation of higher than 16.7 dB between the output ports is observed up to 2.7 f 0 .