High Directivity Couplers Realized in Microstrip Line Technology

Adam Abramowicz , Arkadiusz Gołaszewski , Łukasz Kowalczyk


This paper describes the design and realization of high directivity planar couplers realized in microstrip line technology. The basic idea is that coupling between two transmission lines is present at two points only. The coupling is realized by capacitances soldered to the lines or realized as interdigital capacitors. The presented type of couplers is in close relation to two hole waveguide coupler. The proposed couplers are narrowband ones. Several couplers with 3, 6, 10 and 15 dB couplings have been designed and realized. Lumped SMD capacitors have been used. In each case directivity is better than 30 dB. Couplers are planar, compact and if required can be easily tuned for needed parameters.
Author Adam Abramowicz (FEIT / PE)
Adam Abramowicz,,
- The Institute of Electronic Systems
, Arkadiusz Gołaszewski (FEIT / PE)
Arkadiusz Gołaszewski,,
- The Institute of Electronic Systems
, Łukasz Kowalczyk (FEIT / PE)
Łukasz Kowalczyk,,
- The Institute of Electronic Systems
Publication size in sheets0.5
Book International Conference on Electromagnetics in Advanced Applications, 2015, ISBN 978-1-4799-7805-2
Keywords in Englishdirectional coupler, high directivity coupler, planar coupler, microstrip coupler
URL http://ieeexplore.ieee.org/document/7297210/
projectResearch on measurement, circuit and signal theory and electronic circuits and systems. Project leader: Romaniuk Ryszard, , Phone: +48 22 234 7986, +48 22 234 5360, start date 15-06-2015, end date 31-12-2016, ISE/2015/DS, Completed
WEiTI Działalność statutowa
Languageen angielski
Score (nominal)15
ScoreMinisterial score = 15.0, BookChapterMatConfByIndicator
Ministerial score (2013-2016) = 15.0, BookChapterMatConfByIndicator
Publication indicators WoS Citations = 0
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