1. Garg, R., P. Barthia, I. Bahl, and A. Ittipiboon, Microstrip Antenna Handbook, Artech House, Norwood, MA, 2001.
2. James, J. R. and P. S. Hall, Handbook of Microstrip Antennas, Peter Peregrinus, London, UK, 1989.
3. Gao, S. and J. Li, "FDTD analysis of a sized-reduced, dual-frequency patch antenna," Progress In Electromagnetics Research, Vol. 23, 59-77, 1999.
doi:10.2528/PIER98082502
4. Wang, Y. J. and C. K. Lee, "Design of dual-frequency microstrip patch antennas and application for IMT-2000 mobile handsets," Progress In Electromagnetics Research, Vol. 36, 265-278, 2002.
doi:10.2528/PIER02022102
5. Gao, S., J. L.-W. Li, and A. Sambell, "FDTD analysis of a dual-frequency microstrip patch antenna," Progress In Electromagnetics Research, Vol. 54, 155-178, 2005.
doi:10.2528/PIER04120102
6. Croq, F. and D. M. Pozar, "Multifrequency operation of microstrip antennas using aperture coupled parallel resonators," IEEE Trans. Antennas Propagat., Vol. 40, 1367-1374, Nov. 1992.
doi:10.1109/8.202714
7. Anguera, J., G. Font, C. Puente, C. Borja, and J. Soler, "Multifrequency microstrip patch antenna using multiple stacked elements,", Vol. 13, No. 3, Mar. 2003.
8. Anguera, J., E. Martínez, C. Puente, C. Borja, and J. Soler, "Broad-band dual-frequency microstrip patch antenna with modi¯ed sierpinski fractal geometry ," IEEE Trans. Antennas Propagat., Vol. 52, No. 1, 66-73, Jan. 2004.
doi:10.1109/TAP.2003.822433
9. Daniel, A. E. and G. Kumar, "Tuneable dual and triple stub loaded," IEEE Trans. Antennas Propagat., Vol. 48, No. 7, 1026-1039, Jul. 2000.
10. Anguera, J., C. Puente, C. Borja, and J. Soler, "Dual frequency broadband stacked microstrip antenna using a reactive loading and a fractal-shaped radiating edge," IEEE Antennas and Wireless Propagation Letters, Vol. 6, 309-312, 2007.
doi:10.1109/LAWP.2007.891523
11. Montero-de-Paz, J., E. Ugarte-Muñoz, F. J. Herraiz-Martínez, V. González-Posadas, L. E. Garcia-Munoz, and D. Segovia-Vargas, "Multifrequency self-diplexed single patch antennas loaded with split ring resonators," Progress In Electromagnetics Research, Vol. 113, 47-66, 2011.
12. Herraiz-Martínez, F. J., V. González-Posadas, L. E. García-Muñoz, and D. Segovia-Vargas, "Multi-frequency and dual mode patch antennas partially filled with left-handed structures," IEEE Trans. Antennas Propagat., Vol. 58, No. 8, Part 2, 2527-2539, Aug. 2008.
13. Chung, Y., S.-S. Jeon, D. Ahn, J.-I. Choi, and T. Itoh, "High isolation dual-polarized patch antenna using integrated defected ground structure," IEEE Microw. Wireless Compon. Lett., Vol. 14, 4-6, Jan. 2004.
doi:10.1109/LMWC.2003.821501
14. Sim, C.-Y.-D., C.-C. Chang, and J.-S. Row, "Dual-band dual-polarized patch antenna with low cross polarization and high isolation," IEEE Trans. Antennas Propagat., Vol. 57, No. 10, 3321-3324, Oct. 2009.
doi:10.1109/TAP.2009.2028702
15. Chiou, T.-W. and K.-L. Wong, "Broad-band dual-polarized single microstrip patch antenna with high isolation and low cross polarization," IEEE Trans. Antennas Propagat., Vol. 50, No. 3, 399-401, Mar. 2002.
doi:10.1109/8.999635
16. Chiou, T.-W. and K.-L. Wong, "A compact dual-band dual-polarized patch antenna for 900/1800-MHz cellular systems," IEEE Trans. Antennas Propagat., Vol. 51, No. 8, 1936-1940, Aug. 2003.
doi:10.1109/TAP.2003.814728
17. Soodmand, S., "A novel circular shaped dual-band dual-polarized patch antenna and introducing a new approach for designing combined feed networks," 2009 Loughborough Antennas & Propagation Conference, 401-404, Loughborough, UK, Nov. 2009.
18. Lai, H.-W. and K.-M. Luk, "Dual polarized patch antenna fed by meandering probes," IEEE Trans. Antennas Propagat., Vol. 55, No. 9, 2625-2627, Sep. 2007.
doi:10.1109/TAP.2007.904158
19. Padhi, S. K., N. C. Karkmar, Sr., C. L. Law, S. Aditya, and Sr., "A dual polarized aperture coupled circular patch antenna using a C-shaped coupling slot," IEEE Trans. Antennas Propagat., Vol. 51, No. 12, 3295-3298, Dec. 2003.
doi:10.1109/TAP.2003.820947
20. Gao, S., L. W. Li, M. S. Leong, and T. S. Yeo, "A broad-band dual-polarized microstrip patch antenna with aperture coupling," IEEE Trans. Antennas Propagat., Vol. 51, No. 4, 898-900, Apr. 2003.
doi:10.1109/TAP.2003.811080
21. Boccia, L., G. Amendola, and G. Di Massa, "A dual frequency microstrip patch antenna high-precision GPS applications," IEEE Antennas and Wireless Propagation Letters, Vol. 3, 157-160, 2004.
doi:10.1109/LAWP.2004.832127
22. Pozar, D. M. and S. M. Duffy, "A dual-band circularly polarized aperture-coupled stacked microstrip antenna for global positioning satellite ," IEEE Trans. Antennas Propagat., Vol. 45, No. 11, 1618-1625, Nov. 1997.
doi:10.1109/8.650073
23. Ferrero, F., C. Luxey, G. Jacquemod, and R. Staraj, "Dual-band circularly polarized microstrip antenna for satellite applications," IEEE Antennas and Wireless Propagation Letters, Vol. 4, 13-15, 2005.
doi:10.1109/LAWP.2004.841622
24. Yang, K.-P. and K.-L. Wong, "Dual-band circularly-polarized square microstrip antenna," IEEE Trans. Antennas Propagat., Vol. 49, No. 3, 377-382, Mar. 2001.
doi:10.1109/8.918611
25. Kim, H. J., K. S. Yoon, S. M. Kim, and W. G. Yang, "Design and implementation of dual-band circular polarization square patch antenna for the reception of GPS and S-DMB signals ," IEEE Antennas and Propagation Society International Symposium, 2657-2660, Albuquerque, NM, Jul. 2006.
26. Nasimuddin, Z. N. Chen, X. Qing, "Dual-band circularly polarized S-shaped slotted patch antenna with a small frequency-ratio," IEEE Trans. Antennas Propagat., Vol. 58, No. 6, 2112-2115, 2010.
doi:10.1109/TAP.2010.2046851
27. Bao, X. L. and M. J. Ammann, "Dual-frequency circularly-polarized patch antenna with compact size and small frequency ratio," IEEE Trans. Antennas Propagat., Vol. 55, No. 7, 2104-2107, Jul. 2007.
doi:10.1109/TAP.2007.900271
28. Sung, Y. J. and Y.-S. Kim, "Circular polarised microstrip patch antennas for broadband and dual-band operation," Electronics Letters, Vol. 40, No. 9, 520-522, Apr. 2004.
doi:10.1049/el:20040379
29. Sievenpiper, D., L. Zhang, F. J. Broas, N. G. Alexopulos, and E. Yablonovitch, "High-impedance electromagnetic surfaces with a forbidden frequency band ," IEEE Transactions on Microwave Theory and Techniques, Vol. 47, No. 11, 2059-2074, Nov. 1999.
doi:10.1109/22.798001
30. Sanada, A., C. Caloz, and T. Itoh, "Planar distributed structures with negative refractive index," IEEE Transactions on Microwave Theroy and Techniques, Vol. 52, No. 4, 1252-1263, Apr. 2004.
doi:10.1109/TMTT.2004.825703
31. Lin, I. H., C. Caloz, and T. Itoh, "A branch-line coupler with two arbitrary operating frequencies using left-handed transmission lines," 2003 IEEE MTT-S International Microwave Symposium Digest, 325-3258, Philadelphia, PA, Jun. 2003.
32. Howe, H. H., Stripline Circuit Desing, Artech House, Dedham, MA, 1974.