Abstract
This paper describes the application of a Substrate Integrated Waveguide (SIW) for the design of a microstrip diplexer. The diplexer is composed of two SIW circular cavity filters designed individually and combined together using a T-junction with center frequencies at 2.4 and 2.6 GHz, respectively. The working mode for the circular cavity structures is TM010 mode. To prove the concept, the diplexer is fabricated using Rogers RT5880 with dielectric constant, \( \varepsilon_{r} \) = 2.2 and height of substrate 1.57 mm. The performances of the proposed design are verified through both simulation and measurement.
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Acknowledgments
This work was supported by the Research Acculturation Collaborative Effort (RACE) Funds, Ministry of Education (No. 600-RMI/RACE 16/6/2(8/2013).
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Baba, N.H., Awang, A.H., Ali, M.T., Aris, M.A., Hizan, H.M. (2016). Design of a SIW-Based Microstrip Diplexer Using TM010 Circular Cavity. In: Soh, P., Sulaiman, H., Othman, M., Abd. Aziz, M., Abd Malek, M. (eds) Theory and Applications of Applied Electromagnetics. Lecture Notes in Electrical Engineering, vol 379. Springer, Cham. https://doi.org/10.1007/978-3-319-30117-4_7
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DOI: https://doi.org/10.1007/978-3-319-30117-4_7
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