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Miniaturized SIW filter using D-shaped resonators with wide out-of-band rejection for 5G applications

Author

Listed:
  • Tharani Duraisamy
  • Rusan Kumar Barik
  • Qingsha S. Cheng
  • Selvajyothi Kamakshy
  • Karthikeyan Sholampettai Subramanian

Abstract

In this article, substrate integrated waveguide (SIW) filter with compact size and wide out-of-band rejection is designed for 5G (sub-6 GHz) applications. To achieve the proposed filter responses, D-shaped resonators oriented face-to-face are etched out on the top layer of SIW. Due to the resonators loading, the filter provides a passband below the cut-off frequency of SIW. This decrease in the operating frequency of the filter allows us to achieve size miniaturization. To enhance the frequency responses, a double-stage SIW filter is proposed and investigated. The equivalent electrical-circuits are developed to validate the transmission responses. To support our claim, single- and double-stage SIW filters are designed, fabricated and tested. The filter prototypes achieve size miniaturization, low insertion loss and wide out-of-band responses. The measured responses are very similar to the full-wave simulation responses.

Suggested Citation

  • Tharani Duraisamy & Rusan Kumar Barik & Qingsha S. Cheng & Selvajyothi Kamakshy & Karthikeyan Sholampettai Subramanian, 2020. "Miniaturized SIW filter using D-shaped resonators with wide out-of-band rejection for 5G applications," Journal of Electromagnetic Waves and Applications, Taylor & Francis Journals, vol. 34(18), pages 2397-2409, December.
    • Handle: RePEc:taf:tewaxx:v:34:y:2020:i:18:p:2397-2409
    DOI: 10.1080/09205071.2020.1816219
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