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A design of octagon‐shaped 3‐dB ultra wideband coupler using multilayer technology
Author(s) -
Zaidel D. N. A.,
Rahim S. K. A.,
Seman N.,
Chew C. L.,
Khamis N. H.
Publication year - 2013
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.27259
Subject(s) - conductor , microstrip , microwave , substrate (aquarium) , rat race coupler , wideband , materials science , engineering , electrical engineering , electronic engineering , optoelectronics , hybrid coupler , telecommunications , power dividers and directional couplers , composite material , oceanography , geology
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