Design and Impedance Modeling of Complementary Circular Loop FSS at 2.4 GHz

Mohamad Zoinol Abidin Abd Aziz, Farhana Abu Hussin, Badrul Hisham Ahmad, Mohamad Kadim Suaidi, Noor Azamiah Md Fauzi


This paper presents the design of a circular loop for Frequency Selective Surfaces (FSS) based on complementary techniques for 2.4GHz application. The design of circular loop FSS is simulated using CST Microwave Studio software. The simulation process is based on the characteristics of the reflection coefficient (S11) and transmission coefficient (S21) of the FSS. In this paper, there are two designs that have been presented, namely Design A, which is double circle loop in horizontal axes and Design B is double circle loop in horizontal axes using complementary techniques. It was found that the best performance of the FSS is Design B in terms of return loss and bandwidth. The return loss for Design B is -29.13dB and the bandwidth is 0.39211 GHz at a frequency range from 2.2012 GHz to 2.5933 GHz.


Circular Loop; Frequency Selective Surface (FSS); Reflection Coefficient (S11); Transmission Coefficient (S21); Complementary Techniques;

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Bayatpur, F. 2009. Metamaterial-Inspired Frequency-Selective


Gangwar, K., & Gangwar, R. P. S. 2014. Metamaterials :

Characteristics, Process and Applications, 4(1), 97–106.

Mittra, R., Chan, C. H., & Cwik, T. 1988. Techniques for Analyzing

Frequency Selective Surfaces-a Review. Proceedings of the IEEE,

(12), 1593–1615.

Singh, D., Kumar, A., Meena, S., & Agrawala, V. 2012. Analysis of

Frequency Selective Surfaces for Radar Absorbing Materials. Progress

In Electromagnetics Research B, 38(February), 297–314.

Dubrovka, R., J. Vazquez, C. Parini, and D. Moore, 2006. Equivalent circuit method for analysis and synthesis of frequency selective surfaces, IEE Proceeding on Microwave Antennas Propagation, Vol. 153, No. 3, 213–220,

Bukhari, S. S., Whittow, W. G., Vardaxoglou, J. C., & Maci, S. 2015. Square loop complementary frequency selective surfaces. IEEE Antennas and Propagation Society, AP-S International Symposium (Digest), 2015-October, 1258–1259.

Hu, X. D., Zhou, X. L., Wu, L. S., Zhou, L., & Yin, W. Y. 2009. A

miniaturized dual-band frequency selective surface (FSS) with closed loop and its complementary pattern. IEEE Antennas and Wireless Propagation Letters, 8, 1374–1377.

Joshua, A., Singh, M., Mishra, M., & Sharma, P. 2013. Design & Optimization of Microstrip Patch Antenna Case. International Journal of Emerging Trends and Technology in Computer Science (IJETTCS), 2(5), 139–141.

Aziz, N. A. F. M. Z. A. A., Said, M. A. M., Othman, M. A., Ahmad, B. H., & Malek, M. F. A. Investigation of Circle Loop Combination for

Frequency Selective, 1–5.

Qing, a., & Lee, C. K. 2001. An Improved Model for Full Wave Analysis of Multilayered Frequency Selective Surface with Gridded Square Element. Progress In Electromagnetics Research, 30, 285–303.


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