Design, Simulation and Implementation of Compact and Wideband Microwave Filter Using Semi-Hexagonal Cavity by Substrate Integrated Waveguide (SIW) Technology
Subject Areas : electrical and computer engineering
m.h.
n.
1
(مهندسی)
Rasoul
Rahmani
2
(Ferdosi University)
Keywords: Microwave filter, substrate integrated waveguide (SIW), hexagonal cavity, SIW resonator,
Abstract :
In this paper, a compact wideband microwave filter in X band using substrate integrated waveguide technology is designed, simulated and implemented. At first, the structure of hexagonal and semi-hexagonal microwave resonators is studied and their resonate modes, resonance frequencies and field distribution inside these resonators are investigated. Then, a second order Chebyshev filter is designed by coupling matrix of two semi-hexagonal cavities with center frequency of 10 GHz and fractional bandwidth of 20%. The first designed filter based on theoretical modeling is simulated by a full wave simulator and the geometrical parameters of the structure are adjusted for the required response. A prototype of the designed filter is implemented by TLY031 substrate and its characteristics are successfully measured. The results show that the measured results agree well with those obtained by simulation. The center frequency of the implemented filter is 8.7 GHz and it provides 27.3% bandwidth, with maximum insertion loss of 2.1 dB.
[1] D. Deslandes and K. Wu, "Integrated microstrip and rectangular waveguide in planar form," IEEE Microwave and Wireless Components Letters, vol. 11, no. 2, pp. 68-70, Feb. 2001.
[2] M. Bozzi, A. Georgiadis, and K. Wu, "Review of substrate-integrated waveguide circuits and antennas," IET Microwave Antennas and Propagation, vol. 5, no. 8, pp. 909-920, Jun. 2011.
[3] J. Chen, B. Wu, L. Jiang, and C. Liang, "A compact hexagonal dual-band substrate integrated waveguide filter based on extracted-pole technique," Microwave and Optical Technology Letters, vol. 53, no. 3, pp. 562-565, Jan. 2011.
[4] Z. Xu, G. Zhang, H. Xia, and M. Xu, "Novel hexagonal dual-mode substrate integrated waveguide filter with source-load coupling," The Scientific World J., vol. 2014, Article ID: 915740, 5 pp., Apr. 2014.
[5] Z. Q. Xu, Y. Shi, P. Wang, J. X. Liao, and X. B. Wei, "Substrate integrated waveguide (SIW) filter with hexagonal resonator," J. of Electromagnetic Waves and Applications, vol. 26, no. 11-12, pp. 1521-1527, Aug. 2012.
[6] W. Bo, Z. Xu, L. Hao, X. Meijuan, and J. Liao, "Substrate integrated waveguide cross-coupling filter with multilayer hexagonal cavity," in Proc. Int. Workshop on Microwave and Millimeter Wave Circuits and System Technology, pp. 221-224, Chengdu, China, 24-25, Oct. 2013.
[7] M. Rezaee and A. R. Attari, "Realization of new single-layer triple-mode substrate integrated waveguide and dual-mode half-mode substrate-integrated waveguide filters using a circular shape perturbation," IET Microwaves, Antennas & Propagation, vol. 7, no. 14, pp. 1120-1127, Nov. 2013.
[8] T. Khorand and M. S. Bayati, "Novel half-mode substrate integrated waveguide bandpass filters using semi-hexagonal resonators," International J. of Electronics and Communications, vol. 92, pp. 52-58, Oct. 2018.
[9] A. Vahid Sarani, M. H. Neshati, and M. Fazaelifar, "Development of a wideband hexagonal SIW cavity-backed slot antenna array," International J. of Electronics and Communication, vol. 92, pp. 52-58, Sept. 2021.
[10] S. A. Razavi and M. H. Neshati, "Development of a linearly polarized cavity-backed antenna using HMSIW technique," IEEE Antennas and Wireless Propagation Letters, vol. 11, pp. 1309-1310, 2012.
[11] H. Dashti and M. H. Neshati, "Development of low-profile patch and semi-circular SIW cavity hybrid antennas," IEEE Trans. Antennas Propag., vol. 26, no. 9, pp. 4481-4488, Sept. 2014.
[12] R. J. Cameron, C. M. Kudsia, and R. R. Mansour, Microwave Filters for Communication Systems: Fundamentals, Design, and Applications, Hoboken, NJ: Wiley-Inter-Science, 2007.
[13] ر. رحمانی، طراحی، شبیهسازی و ساخت فیلترهای پهن باند مایکروویو با استفاده از محفظه تشدید ششضلعی با فناوری موجبر مجتمعشده در زیرلایه، پایاننامه کارشناسی ارشد، دانشگاه فردوسی، مشهد، ایران، شهریور 1396.
[14] J. S. Hong, Microstrip Filters for RF/Microwave Applications, Hoboken, NJ: Wiley, 2011.
[15] Y. L. Zhang, W. Hong, K. Wu, J. X. Chen, and Z. C. Hao, "Development of compact bandpass filters with SIW triangular cavities," in IEEE Asia-Pacific Microwave Conf. Proceedings, 4 pp., Suzhou, China, 4-7 Dec. 2005.
[16] C. Lugo and J. Papapolymerou, "Planar realization of a triple-mode bandpass filter using a multilayer configuration," IEEE Trans. on Microwave Theory and Techniques, vol. 55, no. 2, pp. 296-301, Feb. 2007.