A design of octagon-shaped 3-dB ultra wideband coupler using multilayer technology

A design of a 3‐dB ultra wideband (UWB) coupler with compact size (35 mm × 15 mm), which operates between 3.1 and 10.6 GHz is presented in this article. The proposed design is accomplished by using multilayer microstrip structure, which is formed by three layers of conductor and two layers of substr...

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Bibliographic Details
Published in:Microwave and optical technology letters 2013-01, Vol.55 (1), p.127-130
Main Authors: Zaidel, D. N. A., Rahim, S. K. A., Seman, N., Chew, C. L., Khamis, N. H.
Format: Article
Language:English
Subjects:
Butler matrix
directional coupler
microstrip-slot
multilayer
ultra wideband
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Summary:A design of a 3‐dB ultra wideband (UWB) coupler with compact size (35 mm × 15 mm), which operates between 3.1 and 10.6 GHz is presented in this article. The proposed design is accomplished by using multilayer microstrip structure, which is formed by three layers of conductor and two layers of substrate. The top and bottom layers consist of an octagon‐shaped microstrip lines and an octagon‐shaped slot in the middle layer. The design was fabricated on Rogers RO4003c substrate. Both of the simulation and measurement results are being compared with verify the coupler's performances in real environment. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:127–130, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27259
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.27259