Y. Zehforoosh, C. Ghobadi and J. Nourinia, “Antenna design for Ultra Wideband Application Using a New Multilayer Structure,” Progress in Electromagnetics Research Symposium, Beijing, 26-30 March 2007.
 S. Sadat, M. Fardis, F. Geran, G. Dadashzadeh, N. Hojjat and M. Roshandel, “A Compact Microstrip Square-Ring Slot Antenna for UWB Applications,” IEEE Antennas and Propagation Society International Symposium, 9-14 July 2006, pp. 4629-4632. doi:10.1109/APS.2006.1711670
 K. F. Lee, K. M. Luk, K. F. Tong, S. M. Shum, T. Huynk and R. Q. Lee, “Experimental and Simulation Studies of the Coaxially Fed U-slot Rectangular Patch” IEEE Proceedings of Microwave Antenna Propagation, Vol. 144, No. 5, October 1997, pp. 354-358. doi:10.1049/ip-map:19971334
 S. Maci, G. B. Gentili, P. Piazzesi and C. Salvador, “Dualband Slot-Loaded Patch Antenna,” IEEE Proceedings of Microwave Antenna Propagation, Vol. 142, No. 3, June 1995, pp. 225-232. doi:10.1049/ip-map:19951932
 J. Y. Sze and K. L. Wong, “Slotted Rectangular Microstrip Antenna for Bandwidth Enhancement,” IEEE Transactions on Antennas and Propagation, Vol. 48, No. 8, August 2000, pp. 1149-1152. doi:10.1109/8.884481
 K. N. Modha, B. Hayes-Gill and I. Harrison, “A Compact, Low Loss Ice Cream Cone Ultra Wideband Antenna,” Proceedings of the Institution of Engineering and Technology Seminar on Ultra Wideband Systems, Technologies and Applications, London, April 2006, pp. 165-168.
 M. A. Matin, “Stacked E-Shaped Patch Antenna for Lower Band Ultrawideband (UWB) Applications,” Proceedings of IET International Conference on Wireless, Mobile and Multimedia Networks, Mumbai, January 2008, pp. 6-8.
 A. Mehdipour, A. R. Sebak and C. W. Trueman, “A Novel Ultrawideband Slot-Antenna with Dual Band- Notched Characteristics,” IEEE Antennas and Propagation Society International Symposium, 5-11 July 2008, San Diego, pp. 1-4. doi:10.1109/APS.2008.4620056
 J. S. Kuo and K. L. Wong, “A Compact Microstrip Antenna with Meandering Slots in the Ground Plane,” Microwave and Optical Technology Letters, Vol. 29, No. 2, April 20 2001, pp. 95-97. doi:10.1002/mop.1095
 H. Iwasaki, “A Circularly Polarized Small-Size Microstrip Antenna with a Cross Slot,” IEEE Transactions on Antennas and Propagation, Vol. 44, No. 10, October 1996, pp. 1399-1401. doi:10.1109/8.537335
 H. R. Hassani and D. M Syahkal, “Study of Electromagnetically Coupled Stacked Rectangular Patch Antenna,” IEEE Proceedings of Microwave Antenna Propagation, Vol. 142, No. 1, February 1995, pp. 1-15.
 M. H. Badjian, C. K. Chakrabarty, C. H. Goh and S. Devkumar, “An Impulse UWB Patch Antenna with Integrated Bandpass Filter,” Proceedings of the 6th National Conference on Telecommunication Technologies and the 2th Malaysia Conference on Photonics, Putrajaya, 26-28 August 2008, pp. 166-169.
 H. F. Pues and A. R. Van De Capelle, “An Impedance- Matching Technique for Increasing the Bandwidth of Microstrip Antennas,” IEEE Transactions on Antennas Propagation, Vol. 37. No. 11, November 1989, pp. 1345-1354. doi:10.1109/8.43553
 K. W. Loi, S. Uysal and M. S. Leong, “Design of Wideband Microstrip Bowtie Patch Antenna,” Proceedings of Institute Electrical Engineering Microwave Antenna Propagation, Vol. 145, No. 2, 1998, pp. 137-140. doi:10.1049/ip-map:19981632
 W. J. R. Hoefer, “Equivalent Series Inductivity of a Narrow Transverse Slit in Microstrip,” IEEE Transactions on Microwave Theory Technology, Vol. 25, No. 10, October 1977, pp. 822-824. doi:10.1109/TMTT.1977.1129220