CYLINDRICAL CAVITY EBG FOR SUB-6 GHZ MSA ARRAY
Keywords:
Metamaterial, Electromagnetic Band Gap (EBG), Microstrip antenna, Sub-6 GHz applicationsAbstract
The utilization of metamaterials in electromagnetic band gap or EBG structure to improve the performance of a microstrip antenna (MSA) was investigated. A typical MSA array has a bandwidth of 5.2 GHz (1.42-6.62 GHz). This covers the frequency ranges supporting sub-6 GHz frequency bands applications such as cellular, ISM, WiMAX, Machine to Machine (M2M), and Internet of Things (IoT). Results determined that the cylindrical woodpile cavity EBG structure was appropriate for a beam shaped MSA array as the installation resonant circuit put on an antenna. The procedure for efficiency progression, especially gains and impedance matching, transferred the EM field radiating from an MSA array through the cylindrical woodpile cavity EBG and achieved a better overall MSA array performance. Average gains of all operating frequencies of the proposed antenna were improved by around 3.3 dB when compared to an MSA array without EBG. This concept was validated by both simulated and measured results. Good concurrence between the simulations and experimental results were achieved.
References
Aminian, A., Yang, F., and Rahmat-Samii, Y. (2003). In-phase reflection and EM wave suppression characteristics of electromagnetic band gap ground planes. In: Proceedings of the IEEE Antennas and Propagation Society International Symposium. Digest. Held in conjunction with: USNC/CNC/URSI North American Radio Sci. Meeting (Cat. No.03CH37450), Columbus, OH, p. 430-433.
Bahl, J.J. and Bhartia, P. (1980). Mircostrip Antennas. 1st ed. Artech House, 355 p.
Bhartia, P., Garg Inder Bahl, R., and Ittipipoon, A. (2000). Microstrip Antennas Design Handbook. 1st ed. Artech House, 875 p.
Chaimool, S., Akkaraethalin, P., and Vivek, V. (2005). Dual-band CPW-fed slot antennas using loading metallic strips and a widened tuning stub. IEICE Transactions on Electronics, E88-C(12):2,258-2,265.
Chen, H.D. (2003). Broadband CPW-Fed square slot antennas with a widened tuning stub. IEEE Trans. Anten. Propag., 51(8):1,982-1,986.
Gonzalo, R., Maagt, P.de, and Sorolla, M. (1999). Enhanced Path-Antenna Performance by Suppressing Surface Waves using Photonic-Bandgap Substrates. IEEE Transactions on Microwave Theory and Techniques, 47(11):2,131-2,138.
Hongnara, T., Mahatthanajatuphat, M., and Akkaraethalin, P. (2011). Study of CPW-fed slot antenna with fractal stub. In: Proceeding of the 8th Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI) Association of Thailand - Conference 2011, Khon Kaen, p. 188-191.
Kamphikul, P., Kampeephat, S., and Wongsan, R. (2019). Efficiency Improvement of Patch Antenna with Metamaterial Technique for Modern Wireless Communication Applications. In: Proceedings of the 2019 Photonics & Electromagnetics Research Symposium - Spring (PIERS-Spring), Rome, Italy, p. 3,609-3,613.
Krishna, D.D., Gopikrishna, M., Annandan, C.K., Mohanan, P., and Vasudenan, K. (2009). Compact wideband Koch fractal printed slot antenna. IET Microwave Antennas Propagations, 3(5):782-789.
Kshetrimayum, R.S. (2005). Abrief intro to metamaterials. In: IEEE Potentials, 23(5):44-46.
Lee, Y., Lu, X., Hao, Y., Yang, S., Evans, J.R.G., and Parini, C.G. (2010). Narrow-beam azimuthally omni-directional millimetre-wave antenna using freeformed cylindrical woodpile cavity. IET Microwaves Antennas and Propagation, 4(10):1,491-1,499.
Lee, Y., Lu, X., Hao, Y., Yang, S., Evans, J.R.G., and Parini, C.G. (2009). Low profile directive millimetre-wave antennas using free formed three-dimensional (3D) electromagnetic band gap structures. IEEE Transactions on Antennas and Propagation, 57(10):2,893-2,903.
Tang, I.T., Lin, D.B., Liou, G.H., Hong, J.H., and Li, C.M. (2007). A compact slot UWB antenna with CPW-fed. In: Proceedings of the 2007 IEEE Antennas and Propagation Society International Symposium, Honolulu, HI, p. 5,143-5,146.
Thevenot, M., Cheype, C., Reineix, A., and Jecko, B. (1999). Directive Photonic Band-Gap Antennas. IEEE Transactions on Microwave Theory and Techniques, 47(11):2,115-2,122.
Wang, Y., Huang, J., and Feng, Z. (2007). A novel fractal multiband EBG structure and its application in multi-antennas. In: Proceedings of the 2007 IEEE Antennas and Propagation Society International Symposium, Honolulu, HI, p. 5,447-5,450.
Weily, A.R., Horvath, L., Esselle, K.P., Sanders, B., and Bird, T. (2005). A planar resonator antenna based on woodpile EBG material. IEEE Trans. Anten. Propag., 53(1):216-223.
William, J. and Nakkeeran, R. (2009). A novel compact CPW-fed wideband slot antenna. In: Proceedings of the 2009 3rd European Conference on Antennas and Propagation, Berlin, p. 1,471-1,474.
Yang, F. and Rahmat-Samii, Y. (2003). Reflection phase characterizations of the EBG ground plane for low profile wire antenna applications. IEEE Transactions on Antennas and Propagation, 51(10):2,691-2,703.
Yang, F. and Rahmat-Samii, Y. (2008). Electromagnetic Band Gap Structures in Antenna Engineering. Cambridge: Cambridge University Press.
Yao, Y., Wang, X., and Feng, Z. (2006). A novel dual-band Compact Electromagnetic Bandgap (EBG) structure and its application in multi-antennas. In: Proceedings of the 2006 IEEE Antennas and Propagation Society International Symposium, Albuquerque, NM, USA, p. 1,943-1,946.
