Parametric Analysis of Water Lily Shaped Split Ring Resonator Loaded Fractal Monopole Antenna for Multiband Applications
A coplanar waveguide (CPW) feed is presented, and comprising a split ring resonator (SRR) loaded fractal with water lily shape is used for multi band applications. The impedance matching of the antenna is determined by the number of Koch curve fractal unit cells. The antenna is designed on a FR4 substrate with a permittivity of εr = 4.4 and size of 14 x 16 x 1.6 mm3 to generate multi resonant mode at 3.8 GHz covering S band, 8.68 GHz at X band, 13.96 GHz at Ku band, and 19.74 GHz at K band with reflection coefficient better than -10 dB. Simulation results show that the antenna exhibits the desired voltage standing wave ratio (VSWR) level and radiation patterns across the wide frequency range. The fundamental parameters of the antenna such as return loss, VSWR, good radiation pattern with reasonable gain across the operating bands are obtained.
 Naima A. Touhami, Yahya Yahyaoui1, Alia Zakriti2, Khadija Bargach1, Mohamed Boussouis1, Mohammed Lamsalli1, and Abdelwahid Tribak3, “A Compact CPW-Fed Planar Pentagon Antenna for UWB Applications” Progress In Electromagnetics Research C, Vol. 46, 153-161, 2014.
 Li-Ming Si, Weiren Zhu, and Hou- Jun Sun, “A Compact, Planar, and CPW- Fed Metamaterial- Inspired Dual- Band Antenna,”IEEE Antennas Wireless Propagation Letters, vol 12, 2013.
 Liu., “CPW-fed Printed Antenna Design with Multislit Patches for UWB communications,” Microwave and optical technology lett., vol. 55, Dec 2013.
 Xin Li, Xiao-Wei Shi, Peng Fei and Jian-Feng Yu, “compact Triband ACS-fed Monopole Antenna Employing Open-Ended Slots for Wireless Communication,” IEEE trans. Antenna Propag., vol. 12, 2013.
 M. Naser-Moghadasi, R. A. Sadeghzadeh, T. Sedghi, T. Aribi, and B. S. Virdee, “UWB CPW-Fed Fractal Patch Antenna with BandNotched Function Employing Folded T Shaped Element”, IEEE Antennas and Wireless Propagation Letters, VOL. 12, pp.504-507. 2013.
 Dang Trang Nguyen, Dong Hyun Lee, and Hyun Chang Park, “Very Compact Printed Triple Band-Notched UWB Antenna with QuarterWavelength Slots”, IEEE Antennas and Wireless Propagation Letters, Vol. 11, 2012.
 Aidin Mehdipour, Abdel-Razik Sebak, Christopher W. Trueman and Tayeb. A. Denidni, “Compact Multiband Planar Antenna for 2.4/3.5/5.2/5.8-GHz Wireless Applications”, IEEE Antennas And Wireless Propagation Letters, VOL. 11, 2012.
 Mahdi Naghshvarian Jahromi, Abolfazl Falahati, and Rob. M. Edwards, “Bandwidth and Impedance-Matching Enhancement of Fractal Monopole Antennas Using Compact Grounded Coplanar Waveguide “, IEEE Transactions On Antennas and Propagation, Vol. 59, No. 7, July 2011.
 W. Hu., Y. Z. Yin, P. Fei and X. Yang, “Compact tri-band square slot antenna with symmetrical L-strips for WLAN/WIMAX applications,” IEEE Antennas Wireless Propag.Lett., vol. 10, 2011.
 S. T. Fan, Y. Z. Yin, H. Li, S. J. Wei, X. H. Li and L. Kang: A novel triband printed monopole antenna with an etched-shaped slot and a parasitic ring resonator for WLAN and WiMAX applications,” Prog, Electromagnetic Res. Lett, vol. 16, 2010.