Development of a Broadband Substrate Integrated Waveguide Cavity Backed Slot Antenna Using Perturbation Technique
Keywords:
Antenna array, cavity-backed antenna, slot antenna, Substrate Integrated Waveguide (SIW)Abstract
A novel method for bandwidth enhancement of Substrate Integrated Waveguide (SIW) cavity-backed slot antenna is introduced for a single element and an array configuration. Using a corner cut in the SIW square cavity, resonant frequency of two degenerate TE210 and TE120 modes of a square cavity are separated and impedance bandwidth is improved. The simulated and measured results of the antennas show at least 140% and 220% wider bandwidth compared to the bandwidth of a conventional single cavity antenna for single and two element array antennas, respectively. The presented antennas provide a few advantages including low profile, light weight, easy fabrication with low cost and convenient integration with planar circuits.
Downloads
References
R. Elliott, “Antenna theory and design,” Wiley, New York, 2003.
F. Xu and K. Wu, “Guided-wave and leakage characteristics substrate integrated waveguide,” IEEE Transactions on Microwave Theory and Techniques, vol. 53, pp. 66-73, 2005.
M. Bozzi, A. Georgiadis, and K. Wu, “Review of substrate-integrated waveguide circuits and antennas,” IET Microwaves Antennas & Propagation, vol. 5, pp. 909-920, 2011.
G. Luo, Z. Hu, L. Dong, and L. Sun, “Planar slot antenna backed by substrate integrated waveguide cavity,” IEEE Antennas and Wireless Propagation Letters, vol. 7, pp. 236-239, 2008.
G. Luo, Z. Hu, W. Li, X. Zhang, L. Sun, and J. Zheng, “Bandwidth enhanced low-profile cavitybacked slot antenna by using hybrid SIW cavity modes,” IEEE Antenna and Wireless Propagation Letters, vol. 60, pp. 1698-1704, 2012.
S. Yun, D. Kim, and S. Nam, “Bandwidth and efficiency enhancement of cavity-backed slot antenna using a substrate removal,” IEEE Antennas and Wireless Propagation Letters, vol. 11, pp. 1458-1461, 2012.
S. Yun, D. Kim, and S. Nam, “Bandwidth enhancement of cavity-backed slot antenna using a via-hole above the slot,” IEEE Antennas and Wireless Propagation Letters, vol. 11, pp. 1092- 1095, 2012.
K. Jiang, G. Luo, W. Li, G. Huang, P. Li, and L. Sunm, “A 2×2 antenna array consisting of low profile cavity backed slot antennas,” CJMW Proceedings, pp. 1-3, 2011.
F. Xu and K. Wu, “Guided-wave and leakage characteristics of substrate integrated waveguide,” IEEE Transactions on Microwave Theory and Techniques, vol. 53, pp. 66-73, 2005.
L. Yan, W. Hong, G. Hua, J. Chen, K. Wu, and T. Cui, “Simulation and experiment on SIW slot array antennas,” IEEE Antennas and Wireless Propagation Letters, vol. 14, pp. 446-448, 2004.
P. Rizzi, “Microwave engineering passive circuits,” Prentice-Hall International Press, 1998.
C. Chuang, H. Lin, and C. Wang, “Design of dualmode SIW cavity filters,” TENCON, IEEE Region 10 Conference, pp. 1-4, 2007.
X. Liang, K. Zaki, and A. Atia, “Dual mode coupling by square corner cut in resonators and filters,” IEEE Transactions on Microwave Theory and Techniques, vol. 40, pp. 2294-2302, 1994.
C. A. Balanis, “Antenna theory analysis and design,” Wiley, New York, 2005.
