Open AccessDifferentially fed impedance‐transforming directional coupler
Author(s) -
Janisz K.,
Piekarz I.,
Staszek K.,
Wincza K.,
Gruszczynski S.
Publication year - 2019
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2018.6867
Subject(s) - electrical impedance , power dividers and directional couplers , electrical conductor , stack (abstract data type) , hybrid coupler , coupling (piping) , dielectric , physics , electrical engineering , electronic engineering , materials science , acoustics , engineering , topology (electrical circuits) , computer science , mechanical engineering , programming language
In this Letter, a differentially fed impedance‐transforming directional coupler is considered. The utilisation of recently introduced unequal‐width differentially fed coupled conductors allows for setting independently terminating impedances for each of coupled lines as well as for coupling control in a chosen dielectric stack‐up. The theoretical analysis is confirmed by experimental verification, in which an impedance transforming 70–50 Ω 3 dB single‐section directional coupler has been designed and measured.