Open AccessPower divider based on vertical elliptical directional couplers with increased isolation and bandwidth
Author(s) -
Wang Chenhao,
Cui Jie,
Guo Shanhong,
Zhang Renli
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2019.0280
Subject(s) - power dividers and directional couplers , return loss , wilkinson power divider , resistor , wideband , bandwidth (computing) , insertion loss , port (circuit theory) , current divider , fractional bandwidth , electrical engineering , amplitude , materials science , telecommunications , physics , optoelectronics , optics , computer science , engineering , frequency divider , antenna (radio) , voltage , resonator
In this study, a novel high‐isolation wideband divider based on multi‐layer elliptical defected ground structure coupler is presented along with its analytical theory and design procedure. The proposed divider could be conveniently applied for high‐ power applications with less loss for the absence of isolation resistors. The simulation results show that in 3.1–10.6 GHz, the return loss S 11 and S 22 are <−15 dB, the overall isolation S 23 is <−20 dB and the best part achieves−50 dB. Insertion loss S 21 and S 31 are both >−4 dB within 4–9 GHz, and the amplitude and phase difference between port 2 and port 3 is <1 dB and 2°, respectively.