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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2018-04-06
Substrate Integrated Waveguide (SIW) Diplexer with Novel Input/Output Coupling and No Separate Junction
By
Augustine O. Nwajana,

    Dr. Augustine O. Nwajana

    School of Architecture, Computing and Engineering

    University of Greenwich

    UK

    Homepage

Amadu Dainkeh,

    Dr. Amadu Dainkeh

    Department of Electrical and Electronic Engineering

    University of East London

    United Kingdom

    Homepage

Kenneth Siok Kiam Yeo

    Dr. Kenneth Siok Kiam Yeo

    School of Architecture, Computer and Engineering

    University of East London

    UK

    Homepage

Progress In Electromagnetics Research M, Vol. 67, 75-84, 2018
doi:10.2528/PIERM18021603 | Google Scholar

Abstract
A microwave diplexer implemented by using the twenty-first century substrate integrated waveguide (SIW) transmission line technology is presented. No separate junction (be it resonant or non-resonant) was used in achieving the diplexer, as the use of an external junction for energy distribution in a diplexer normally increases design complexity and leads to a bulky device. The design also featured a novel input/output coupling technique at the transmit and receive sides of the diplexer. The proposed SIW diplexer has been simulated using the full-wave finite element method (FEM), Keysight electromagnetic professional (EMPro) 3D simulator. The design has also been validated experimentally and results presented. Simulated and measured results show good agreement. The measured minimum insertion losses achieved on transmit and receive channels of the diplexer are 2.86 dB and 2.91 dB, respectively. The measured band isolation between the two channels is better than 50 dB.
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Citation
Augustine O. Nwajana, Amadu Dainkeh, and Kenneth Siok Kiam Yeo, "Substrate Integrated Waveguide (SIW) Diplexer with Novel Input/Output Coupling and No Separate Junction," Progress In Electromagnetics Research M, Vol. 67, 75-84, 2018.
doi:10.2528/PIERM18021603
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