Open AccessWideband balanced‐to‐unbalanced filtering unequal power divider with wide stopband and isolation
Author(s) -
Zhuang Zheng,
Wu Yongle,
Jiao Lingxiao,
Wang Weimin,
Liu Yuanan
Publication year - 2017
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.2017.1249
Subject(s) - stopband , wideband , isolation (microbiology) , power dividers and directional couplers , power (physics) , electronic engineering , electrical engineering , computer science , wilkinson power divider , fractional bandwidth , frequency divider , engineering , band pass filter , physics , quantum mechanics , microbiology and biotechnology , biology
A novel wideband balanced‐to‐unbalanced filtering unequal power divider with wide stopband and isolation is proposed. The wideband filtering response with high frequency selectivity can be realised easily using the modified two‐port coupled lines with short‐ and open‐circuit stubs, thus generating two transmission zeros near the passband. The complete closed‐form equations are presented. A fabricated prototype with 1 : 2 power dividing ratio is simulated and measured to validate the proposed design.