Abstract
This paper focuses on the analysis of passive devices using a recent emerging technology named Substrate Integrated Waveguide (SIW). This technology has been used in the conception of planar compact components for the microwave and millimeter wave’s applications. Through using Ansoft HFSS and CST code a substrate integrated waveguide coupler has conceived and optimized in this study. The SIW 90° coupler design simulations show good performances with low return loss, high isolation better than -20 and -40 dB, respectively and broad operational bandwidth.
Highlights
The extensive use of the rectangular waveguide components in millimeter-wave and microwave communication systems, radar and other equipments are due to their significant features such as their high Quality factor (Q-factor), high power capability and low insertion loss (Labay and Rao, 2011; Labay and Bornemann, 2008; Ahmad et al, 2013)
The Substrate Integrated Waveguide (SIW) components are characterized with low insertion loss, low radiation loss and insensitive to outside interference since its components are covered by metal surfaces on both sides of the substrate (Hao et al, 2006; Abdel-Wahab et al, 2011; Rahali et al, 2014; Xinyu et al, 2005; Zhigang et al, 2011)
A 90° coupler with low cost and low loss Substrate Integrated Waveguide (SIW) has been designed for low profile and compact mm-wave applications
Summary
The extensive use of the rectangular waveguide components in millimeter-wave and microwave communication systems, radar and other equipments are due to their significant features such as their high Quality factor (Q-factor), high power capability and low insertion loss (Labay and Rao, 2011; Labay and Bornemann, 2008; Ahmad et al, 2013) They are difficult to be integrated in modern microwave and millimeter-wave integrated circuits because of their big size, nonplanar structure and strict requirement of manufacturing precision (Hao et al, 2006). The SIW components are characterized with low insertion loss, low radiation loss and insensitive to outside interference since its components are covered by metal surfaces on both sides of the substrate (Hao et al, 2006; Abdel-Wahab et al, 2011; Rahali et al, 2014; Xinyu et al, 2005; Zhigang et al, 2011) In this present paper, the design platform of the new SIW 90° coupler is presented and discussed. A 90° coupler with low cost and low loss Substrate Integrated Waveguide (SIW) has been designed for low profile and compact mm-wave applications
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