A low cost, dual band antenna has been proposed and studied in this paper. The antenna consists of two elements- a T-shaped element and an F-shaped element. A microstrip feed line with a characteristic impedance of 50? has been used to feed the T-element which is responsible for the generation of the higher band of operation. The F-element is placed on the other side of the dielectric and is coupled with the T-element to generate a lower band of operation. Thus, together the two elements generate a dual band performance. Besides, the design has been simpli?ed by doing away with shorting pins and complicated geometries- one of the major disadvantages in existing dual band antenna designs. Furthermore, the dimensions of the two elements have been optimized so that the overall size of the antenna is considerably reduced. Return loss plots, radiation pattern and other antenna parameters have been studied thoroughly and also compared with existing designs to prove that the proposed antenna is a promising design for wireless systems using WiMAX, Bluetooth and also for WLAN applications.

1. Yen-Liang Kuo and Kin-Lu Wong, "Printed double-T monopole antenna for 2. 4/5. 2 GHz dual-band WLAN opera- tions," Antennas and Propagation, IEEE Transactions on , vol. 51, no. 9, pp. 2187,2192, Sep 2003.
2. Sheng-Bing Chen, Yong-Chang Jiao, Wei Wang and Fu-Shun Zhang, "Modi?ed T-shaped planar monopole antennas multiband operation," Microwave Theory and Techniques, IEEE Transactions on , vol. 54, no. 8, pp. 3267,3270, Aug. 2006.
3. Yi-Cheng Lin and Kuan-Jung Hung, "Compact Ultrawideband Rectangular Aperture Antenna and Band-Notched Designs," Antennas and Propagation, IEEE Transactions on , vol. 54, no. 11, pp. 3075,3081, Nov. 2006.
4. Qing-Xin Chu and Ying-Ying Yang, "A Compact Ultraw- ideband Antenna With 3. 4/5. 5 GHz Dual Band-Notched Characteristics," Antennas and Propagation, IEEE Transac- tions on , vol. 56, no. 12, pp. 3637,3644, Dec. 2008.
5. Khan, M. R. , Morsy, M. M. Khan and M. Z. Harackiewicz, F. J. , "Dual band antenna for wireless network (WLAN) applications," Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on, vol. , no. , pp. 1397,1400, 3-8 July 2011.
6. Khan, M. R. , Morsy, M. M. , Khan, M. Z. and Harackiewicz, F. J. , "Miniaturized multiband planar antenna for GSM, UMTS, WLAN, and WiMAX bands," Antennas and Propagation (AP- SURSI), 2011 IEEE International Symposium on , vol. , no. , pp. 1387,1389, 3-8 July 2011
7. Yuehe Ge, Esselle, K. P. and Bird, T. S. , "E-shaped patch antennas for high-speed wireless networks," Antennas and Propagation, IEEE Transactions on , vol. 52, no. 12, pp. 3213,3219, Dec. 2004.
8. Sharma, M. D. , Katariya, A. and Meena, R. S. , "E Shaped Patch Microstrip Antenna for WLAN Application Using Probe Feed and Aperture Feed," Communication Systems and Network Technologies (CSNT), 2012 International Conference on , vol.
9. Liang-Kai Chen and Ching-Hsing Luo, "A Low-Pro?le Multi- band Mobile Phone Antenna for Telemedicine Applications," International Conference on Intelligent Computation and Bio-Medical Instrumentation 2011.
10. JLiang-Kai Chen and Ching-Hsing Luo, "A Low-Pro?le Multiband Mobile Phone Antenna for Telemedicine Applica- tions," Intelligent Computation and Bio-Medical Instrumen- tation (ICBMI), 2011 International Conference on , vol. , no. , pp. 249,252, 14-17 Dec. 2011.
11. Xiao Lei Sun, Li Liu, Cheung, S. W. and Yuk, T. I. , "Dual- Band Antenna With Compact Radiator for 2. 4/5. 2/5. 8 GHz WLAN Applications," Antennas and Propagation, IEEE Transactions on , vol. 60, no. 12, pp. 5924,5931, Dec. 2012.
12. Pan, C. -Y. , Tzyy-Sheng Horng, Wen-Shan Chen and Chien- Hsiang Huang, "Dual Wideband Printed Monopole Antenna for WLAN/WiMAX Applications," Antennas and Wireless Propagation Letters, IEEE , vol. 6, no. , pp. 149,151, 2007.

Antenna Dual Band Wimax Bluetooth Wlan