Substrate integrated waveguide (SIW) 3 dB coupler for K-Band applications
Advanced Communication Engineering Centre (ACE) School of Computer and Communication Engineering, Universiti Malaysia Perlis, Arau, Perlis, Malaysia
* Corresponding author: firstname.lastname@example.org
Published online: 22 November 2017
This paper presented a designed coupler by using Rogers RO4003C with thickness (h) 0.508 mm and relative permittivity (εr) 3.55. The four port network coupler operates in K-band (18-27 GHz) and design by using substrate integrated waveguide (SIW) method. The reflection coefficient and isolation coefficient of propose Substrate Integrated Waveguide (SIW) coupler is below than -10 dB. Meanwhile the coupler requirements are phase shift 90° between coupled port and output. SIW are high performance broadband interconnects with excellent immunity to electromagnetic interference and suitable for use in microwave and communication electronics, as well as increase bandwidth systems. The designs of coupler are investigated using CST Microwave Studio simulation tool. This proposed couplers are varied from parameters that cover the frequency range (21 -24 GHz) and better performance of scattering (S-parameter).
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).