Open AccessCompact microstrip balun diplexer using stub‐loaded dual‐mode resonators
Author(s) -
Huang Feng,
Wang Jianpeng,
Zhu Lei,
Wu Wen
Publication year - 2016
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.2016.3302
Subject(s) - balun , diplexer , stub (electronics) , resonator , microstrip , electronic engineering , dual mode , impedance matching , insertion loss , miniaturization , acoustics , engineering , electrical engineering , computer science , electrical impedance , physics , antenna (radio)
A new microstrip unbalanced‐to‐balanced (balun) diplexer based on stub‐loaded dual‐mode resonators is presented. The proposed balun diplexer primarily consists of two balun filter channels, and both channels are entirely independently designable, thus bringing great flexibility in the balun diplexer design. Besides, owing to the direct connection of two dual‐mode balun filters, no additional matching networks are demanded at the common input port, leading to a significant size reduction. For demonstration, a prototype balun diplexer operating at 2.30 and 2.72 GHz is implemented. Both simulated and experimental results are provided in good agreement.