Open AccessBroadband low‐loss power splitter based on ferrite cores
Author(s) -
Wei Xin,
Liu Lei,
Luo LingZhi,
Wang Zheng Bin
Publication year - 2018
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.2018.5648
Subject(s) - splitter , insertion loss , broadband , electrical engineering , ferrite (magnet) , bandwidth (computing) , transformer , power dividers and directional couplers , power loss , materials science , ferrite core , voltage , electronic engineering , telecommunications , engineering , optics , physics , electromagnetic coil
A broadband 3‐dB power splitter based on ferrite cores is proposed for RF communication systems. This power splitter is developed from the transformer‐type Wilkinson power splitter, where lumped components are detailed designed to achieve excellent input and output impedance match in an ultra‐wide bandwidth (300 kHz–400 MHz). The power splitter demonstrates better RF characteristics in comparison with former designs. The voltage standing wave ratios of the input and output ports are <1.2, the isolation between two output ports is >20 dB, the amplitude imbalance is <0.04 dB, and the insertion loss is <0.5 dB. Such power splitters have small dimensions and very low costs.