1. Kovar, P., P. Puricer, P. Kacmarik, and F. Vejrazka, "Augmentation methods for GNSS integrity and precision," Proceedings of TimeNav 07, ENC-GNSS, European Navigation Conference [CD-ROM], 107-114, The Printing House Inc., Stoughton, 2007. Google Scholar
2. Chris, R., et al. "New GNSS developments and their mpact on providers and users spatial information,", (http://www.gmat.unsw.edu.au/snap/publications/rizosetal 2005a.pdf). Google Scholar
3. Padros, N., et al. "Comparative study of high-performance GPS receiving antenna designs," IEEE Transactions on Antennas and Propagation, Vol. 45, No. 4, 698-706, Apr. 1997.
doi:10.1109/8.564096 Google Scholar
4. Boccia, L., et al. "A high performance dual frequency microstrip antenna for global positioning system," IEEE Antennas and Propagation Society International Symposium, Vol. 4, 66-69, 2001. Google Scholar
5. Lee, Y., M. Kirchner, and aS. Ganguly, "Multiband L5 capable GPS antenna with reduced backlobes," ION GNSS 17th International Technical Meeting of the Satellite Division, 1523-1530, Sep. 2004. Google Scholar
6. Rao, B. R., et al. "Triple band GPS trap loaded inverted L antenna array," Microwave and Optical Technology Letters, Vol. 38, No. 1, 25-37, 2003.
doi:10.1002/mop.10960 Google Scholar
7. Zhou, Y. J., C.-C. Chen, and J. L. Volakis, "Proximity-coupled stacked patch antenna for tri-band GPS applications," IEEE Antennas and Propagation Society International Symposium,, 2683-2686, Jul. 9-14, 2006. Google Scholar
8. Peng, X.-F., S.-S. Zhong, S.-Q. Xu, and Q. Wu, "Compact dual-band GPS microstrip antenna," Microwave and Optical Technology Letters, Vol. 44, No. 1, 58-60, Jan. 2005.
doi:10.1002/mop.20547 Google Scholar
9. Bahl, I. J. and P. Bhartia, Microstrip Antennas, Artech House, 1980.
10. Sharma , P. C. and K. C. Gupta, "Analysis and optimized design of single feed circularly polarized microstrip antennas," IEEE Transactions on Antennas and Propagation, Vol. 29, 1983. Google Scholar
11. Haneishi, M. and S. A. Yoshida, "Design method of circularly polarized rectangular microstrip antenna by one point feed," Microstrip Antenna Design, K. C. Gupta and A. Banala, Ed., Artech House, Norwood, MA, USA, 1988. Google Scholar
12. Wong, K. L., Compact and Broadband Microstrip Antennas, John Wiely & Sons Inc., 2002.
doi:10.1002/0471221112
13. Ke, S. Y., "Single-feed microstrip antenna with two-layer substrate for circular polarization," Proc. International Symposium on Communication, No. 212, Nov. 2005. Google Scholar
14. Chen, W. S., C. K. Wu, and K. L. Wong, "Novel compact circularly polarized square microstrip antenna," IEEE Transactions on Antennas and Propagation, Vol. 49, Mar. 2001. Google Scholar
15. Mak, C. L., K. M. Luk, K. F. Lee, and Y. L. Chow, "Experimental study of a microstrip patch antenna with an L-shaped probe," IEEE Transactions on Antennas and Propagation, Vol. 48, No. 5, May 2000.
doi:10.1109/8.855497 Google Scholar
16. Matin, M. A., B. S. Sharif, and C. C. Tsimenidis, "Probe fed stacked patch antenna for wideband applications," IEEE Transactions on Antennas and Propagation, Vol. 55, No. 8, Aug. 2007.
doi:10.1109/TAP.2007.901924 Google Scholar
17. Tlili, B., "Design of C-slot microstrip patch antenna for WiMax application," Ant. & Propagation Conference, LAPC 2009, Loughborough, Nov. 16-17, 2009. Google Scholar
18. Hsu, W. H., G. Y. Lee, and K. L.Wong, "A wideband capacitively fed circular-E patch antenna," Microwave and Optical Technology Letters, Vol. 27, Oct. 20, 2000. Google Scholar
19. Ooi, B. L. and C. L. Lee, "Broadband air-filled stacked U-slot patch antenna," Electronic Letters, Vol. 35, No. 7. Google Scholar
20. Lee, K. F., S. L. S. Yang, and A. A. Kishk, "Dual and multiband U-slot patch antennas," IEEE Antennas and Wireless Propagation Letters, Vol. 7, 2008. Google Scholar
21. Yang, S. L. S., K. F. Lee, and A. A. Kishk, "Design and study of wideband single feed circularly polarized microstrip antenna," Progress In Electromagnetic Research, Vol. 80, 2008. Google Scholar
22. Chang, F. S. and K. L. Wong, "A broadband probe-fed planar patch antenna with a short probe pin and a conducting cylinder transition," Microwave and Optical Technology Letters, Vol. 31, No. 4, Nov. 20, 2001. Google Scholar
23. "High-frequency structure simulator (HFSS V10.1) ,", software from Ansoft Corp., Pittsburgh, PA. Google Scholar