Publisher DOI: 10.23919/eumc.2012.6459184
Title: Measurement and fabrication uncertainties in high-directivity microstrip couplers
Language: English
Authors: Pham, Minh Nhat 
Müller, Johannes 
Jacob, Arne F. 
Issue Date: Oct-2012
Source: European Microwave Conference (EuMC 2012)
Abstract (english): 
The significance of experimental results obtained with couplers designed for high directivity is addressed. Two aspects are considered. First, the effect of calibration errors on the coupler directivity is investigated and the related accuracy limits are formulated on a statistical basis. Second, the directivity degradation due to fabrication tolerances is predicted by simulation and verified experimentally. This allows to relate measurement results to theoretical expectations and to draw some more general conclusions on the relative importance of these two effects.
Conference: European Microwave Conference, EuMC 2012 
URI: http://hdl.handle.net/11420/8363
ISBN: 978-287487027-9
Institute: Hochfrequenztechnik E-3 
Document Type: Chapter/Article (Proceedings)
Project: Kompensation ungleicher Phasengeschwindigkeiten bei verkoppelten Leitungen in inhomogenen Medien - Phasengeschwindigkeiten 
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