Open AccessNovel Filtering Power Divider with External Isolation Resistors
Author(s) -
Lu YunLong,
Wang Shun,
Dai GaoLe,
Li Kai
Publication year - 2015
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.15.0114.0058
Subject(s) - power dividers and directional couplers , wilkinson power divider , resistor , current divider , frequency divider , electronic engineering , engineering , power (physics) , electrical engineering , filter (signal processing) , topology (electrical circuits) , computer science , physics , voltage , quantum mechanics
In this paper, a novel filtering power divider with external isolation resistors is presented. The proposed power divider can be considered as an integration of a bandpass filter and a Gysel power divider. Based on the circuit topology, a high‐order filtering power divider can be easily realized. Odd‐ and even‐mode models are employed to analyze the filtering and power splitting functions. For demonstration, a third‐order filtering power divider operating at 1.5 GHz is designed and implemented. The measured results exhibit an isolation between the output ports that is better than 20 dB at around the center frequency.