1. Puente-Baliarda, C., J. Romeu, R. Pous, and A. Cardama, "On the behavior of the Sierpinski multiband fractal antenna," IEEE Trans. Antennas Propag., Vol. 46, 517-528, Apr. 1998.
doi:10.1109/8.664115
2. Puente-Baliarda, C., J. Romeu, and A. Cardama, "The Koch monopole: A small fractal antenna," IEEE Trans. Antennas Propag., Vol. 48, 1773-1781, Nov. 2000.
doi:10.1109/8.900236
3. Best, S. R., "On the performnace properties of the Koch fractal and other bent wire monopoles," IEEE Trans. Antennas Propag., Vol. 51, 1292-1300, Jun. 2003.
doi:10.1109/TAP.2003.812257
4. Pan, S. C. and K. L. Wong, "Dual frequency triangular microstrip antenna with a shorting pin," IEEE Trans. Antennas Propag., 1889-1891, Dec. 1997.
5. Barbuto, M., F. Bilotti, and A. Toscano, "Design of a multifunctional SRR-loaded printed monopole antenna," Int. J. RF Microw. CAE, Vol. 22, 552-557, 2012.
doi:10.1002/mmce.20645
6. Hansen, R. C., "Fundamental limitations in antennas," Proceedings of the IEEE, Vol. 69, 170-182, Feb. 1981.
doi:10.1109/PROC.1981.11950
7. McLean, J. S., "A re-examination of the fundamental limits on the radiation Q of electrically small antennas," IEEE Trans. Antennas Propag., Vol. 44, 672-676, May 1996.
doi:10.1109/8.496253
8. Collin, R. and S. Rothschild, "Evaluation of antenna Q," IEEE Trans. Antennas Propag., Vol. 12, 23-27, Jan. 1964.
doi:10.1109/TAP.1964.1138151
9. Jin, P. and R. W. Ziolkowski, "Multiband extensions of the electrically small near field resonant parasitic Z antenna," IEEE Trans. Antennas Propag., Vol. 4, 1016-1025, Aug. 2010.
10. Barbuto, M., F. Trotta, F. Bilotti, and A. Toscano, "A combined bandpass filter and polarization transformer for horn antennas," IEEE Antennas Wireless Propag. Lett., Vol. 12, 1065-1068, 2013.
doi:10.1109/LAWP.2013.2280151
11. Barbuto, M., F. Bilotti, and A. Toscano, "Novel waveguide components based on complementary electrically small resonators," Photonic Nanostruct., Vol. 12, 284-290, 2014.
doi:10.1016/j.photonics.2014.03.005
12. Barbuto, M., F. Trotta, F. Bilotti, and A. Toscano, "Horn antennas with integrated notch filters," IEEE Trans. Antennas Propag., Vol. 63, 781-785, 2015.
doi:10.1109/TAP.2014.2378269
13. Zhu, J., M. A. Antoniades, and G. V. Eleftheriades, "A compact tri-band monopole antenna with single-cell metamaterial loading," IEEE Trans. Antennas Propag., Vol. 58, 1031-1038, Apr. 2010.
doi:10.1109/TAP.2010.2041317
14. Jin, P. and R. W. Ziolkowski, "Multi-frequency, linear and circular polarized, metamaterial-inspired, near-field resonant parasitic antennas," IEEE Trans. Antennas Propag., Vol. 59, No. 5, 1446-1459, May 2011.
doi:10.1109/TAP.2011.2123053
15. Jin, P., C. C. Lin, and R. W. Ziolkowski, "Multifunctional, electrically small, planar near-field resonant parasitic antennas," IEEE Antennas Wireless Propag. Lett., Vol. 11, 200-204, 2012.
16. Barbuto, M., A. Monti, F. Bilotti, and A. Toscano, "Design of a non-foster actively loaded SRR and application in metamaterial-inspired components," IEEE Trans. Antennas Propag., Vol. 61, No. 3, 1219-1227, Mar. 2013.
doi:10.1109/TAP.2012.2228621
17. Erentok, A. and R. W. Ziolkowski, "Metamaterial-inspired efficient electrically small antenna," IEEE Trans. Antennas Propag., Vol. 56, No. 3, 691-707, Mar. 2008.
doi:10.1109/TAP.2008.916949
18. Barbuto, M., F. Trotta, F. Bilotti, and A. Toscano, "Varying the operation bandwidth of metamaterial-inspired filtering modules for horn antennas," Progress In Electromagnetics Research C, Vol. 58, 61-68, 2015.
doi:10.2528/PIERC15051402
19. Du, G.-H., X. Tang, and F. Xiao, "Tri-band metamaterials-inspired monopole antenna with modified S-shaped resonator," Progress In Electromagnetics Research Letters, Vol. 23, 39-48, 2011.
doi:10.2528/PIERL11031515
20. Das, A., S. Dhar, and B. Gupta, "Lumped circuit model analysis of meander line antennas," Proceedings of MMS 2011, 21-24, 2011.
21. Olaode, O. O., W. D. Palmer, and W. T. Joines, "Characterization of meander dipole antennas with a geometry-based, frequency-independent lumped element model," IEEE Antennas Wireless Propag. Lett., Vol. 11, 346-349, 2012.
doi:10.1109/LAWP.2012.2191380
22. Hosono, R., N. Guan, H. Tayama, and H. Furuya, "An equivalent circuit model for meander-line monopole antenna attached to metallic plate," Proceedings of ISAP 2012, 1421-1424, 2012.
23. Barbuto, M., A. Alu, F. Bilotti, A. Toscano, and L. Vegni, "Characteristic impedance of a microstrip line with a dielectric overlay," COMPEL --- The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, Vol. 32, No. 6, 1855-1867, 2013.
doi:10.1108/COMPEL-10-2012-0283
24. CST Studio Suite 2014, CST Computer Simulation Technology AG, Darmstadt, Germany [Online], available: http://www.cst.com.