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A balanced UWB power divider based on parallel coupling slotlines with improved isolation
Author(s) -
Wei Feng,
Yang ZhiJie,
Li Bin,
Shi XiaoWei
Publication year - 2019
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.21510
Subject(s) - correctness , power dividers and directional couplers , wilkinson power divider , bandwidth (computing) , computer science , electrical impedance , coupling (piping) , electronic engineering , fractional bandwidth , optoelectronics , materials science , electrical engineering , frequency divider , engineering , telecommunications , band pass filter , algorithm , metallurgy
A balanced‐to‐balanced ultra‐wide band (UWB) equal power divider (PD) based on parallel coupling slotlines is presented in this article. An ultra‐wide differential‐mode (DM) impedance bandwidth covering from 2.8 to 9.4 GHz can be achieved. It is noted that the DM performance is independent of the common‐mode (CM) response, which reduces the design complexity greatly. Meanwhile, CM response with a larger bandwidth and a higher suppression is obtained intrinsically. More importantly, two methods are designed and adopted to improve the DM isolation between the two output ports. To validate the correctness of the design method, a prototype circuit is fabricated and measured. The contrast of the simulated and measured results shows a good agreement.