[15]Mehdi Ali，Compact dual-band microstrip antenna for universal 2.4 5.2GHz WLAN applications[C]，International Conference on Communications, Computing and Control Applications (CCCA), 2011, pp 1-4.

[16]Zhu Wei-gang; Yang Tao; Yao Yi，Design of a high gain circularly polarized microstrip antenna[C]，Second International Conference on Mechanic Automation and Control Engineering (MACE), 2011, pp 3997-4000. 

[17]Meng Wei; Hong Deng; Houjun Sun; Yong Liu，Design of an X Ka dual-band co-aperture broadband microstrip antenna array[C]，IEEE International Conference on Microwave Technology & Computational Electromagnetics (ICMTCE), 2011, pp 217-220. 

[18]M. Ramrez and J. Parrn，Dual-band annular-ring microstrip antenna with bow tie shaped aperture coupling[C]，Proceedings of the 5th European Conference on Antennas and Propagation (EUCAP), 2011, pp 768-770.

[19]Soliman, M.A.; Swelam, W.; Gomaa, A.; Taha, T.E.，Steerable dual-band planar microstrip phased array antenna for 3G and 4G wireless communication systems[C]，2011 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC), 2011, pp 905-908. 

[20]Xiaoye Sun，Dual-Band Circularly Polarized Stacked Annular-Ring Patch Antenna for GPS Application[J]，IEEE Antennas and Wireless Propagation Letters, Vol. 10, 2011.