Open AccessCompact differential power divider with enhanced bandwidth and in‐phase or out‐of‐phase output ports
Author(s) -
Shi Jin,
Xu Kai
Publication year - 2014
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.2014.1300
Subject(s) - microstrip , wilkinson power divider , power dividers and directional couplers , bandwidth (computing) , resistor , insertion loss , differential phase , electrical engineering , differential (mechanical device) , phase (matter) , electronic engineering , frequency divider , engineering , telecommunications , physics , voltage , keying , quantum mechanics , aerospace engineering
A differential power divider using coupled microstrip line is proposed. The differential‐mode response can be controlled by the odd‐mode of the coupled microstrip line and resistors. Compared with the reported differential power dividers, the proposed one shows the advantages of compact size, wide bandwidth and easy connection with radio frequency (RF) chips. Furthermore, both in‐phase and out‐of‐phase output ports can be realised using different connection ways. Two prototypes have been fabricated with the same size of 0.185 λ g × 0.245 λ g , one with in‐phase output ports and the other with out‐of‐phase output ports, showing the same minimum insertion loss of 0.2 dB and relative frequency bandwidths for | S dd11 | <−15 dB of 75 and 78%, respectively.