A Novel Fractal Monopole Antenna with Wide Bandwidth Enhancement for UWB Applications
关键词:
Fractal, monopole antenna, UltraWideband (UWB)摘要
A novel wideband fractal monopole antenna with a semi-elliptical ground plane is presented. In this letter, by inserting a fractal shape in the conventional circular ring, much wider impedance bandwidth and new resonances are generated. By only increasing the fractal iterations, larger bandwidth is attained. The designed antenna has a compact size of 25×25×1 mm3 and operates over the frequency band between 2.2 and 17 GHz for VSWR<2. The process of improving the impedance bandwidth and measured results are presented and discussed.
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参考
V. Waladi, N. Mohammadi, Y. Zehforoosh, A. Habashi, and J. Nourinia, “A novel modified startriangular fractal (MSTF) monopole antenna for super-wideband applications,” IEEE Antennas Wireless Propag. Lett., vol. 12, pp. 651-654, 2013.
K. J. Venoy, J. K. Abraham, and V. K. Varadan, “Fractal dimension and frequency response of fractal shaped antennas,” In Proc. IEEE Antennas Propag. Soc. Int. Symp., vol. 4, pp. 222-225, June 2003.
M. J. Ammann and Z. N. Chen, “Wideband monopole antennas for multi-band wireless systems,” IEEE Antennas Propag. Mag., vol. 45, no. 2, pp. 146-150, April 2003.
S. R. Best, “The effectiveness of space filling fractal geometry in lowering resonant frequency,” IEEE Antennas Wireless Propag. Lett., vol. 1, pp. 112- 115, 2002.
S. S. Zhong, X. L. Liang, and W. Wang, “Compact elliptical monopole antenna with impedance bandwidth in excess of 21:1,” IEEE Trans. Antennas Propag., vol. 55, pp. 3082-3087, November 2007.
E. S. Angelopoulos, A. Z. Anastopoulos, D. I. Kaklamani, A. A. Alexandridiss, F. Lazarakis, and K. Dang, “Circular and elliptical CPW-fed slot and microstrip-fed antennas for ultra-wideband applications,” IEEE Antennas Wireless Propag. Lett., vol. 5, pp. 294-297, 2006.
T. G. Ma and S. K. Jeng, “Planar miniature taperedslot-fed annular slot antennas for ultra-wideband radios,” IEEE Trans. Antennas Propag., vol. 53, no. 3, pp. 1194-1202, March 2005.
Y. Zehforoosh, M. Naser-Moghadasi, R. A. Sadeghzadeh, and C. Ghobadi, “Miniature fractal monopole antenna with inscribed arrowhead cuts for UWB applications,” IEICE Elect. Expr., vol. 9, no. 24, pp. 1855-1860, 2012.
J. Anguera, C. Puente, C. Borja, and J. Soler, “Fractal-shaped antennas: a review,” In Wiley Encyclopedia of RF and Microwave Engineering, vol. 2, pp. 1620-1635, 2005.
C. T. P. Song, P. S. Hall, and H. Ghafouri Shiraz, “Multiband quasi-fractal multiple ring monopole antenna,” IEEE Transactions on Antennas and Propagation, 51 (4): 722-729, 2003.
J. P. Gianvittorio and Y. Rahmat-Samii, “Fractal antennas: a novel antenna miniaturization technique, and applications,” IEEE Antennas and Propagation Magazine, vol. 44, n. 1, pp. 20-36, February 2002.
J. Anguera, J. P. Daniel, C. Borja, J. Mumbrú, C. Puente, T. Leduc, N. Laeveren, and P. Van Roy, “Metallized foams for fractal-shaped microstrip antennas,” IEEE Antennas and Propagation Magazine, vol. 50, n. 6, pp. 20-38, December 2008.
J. Anguera, E. Martínez, C. Puente, C. Borja, and J. Soler, “Broad-band triple-frequency microstrip patch radiator combining a dual-band modified sierpinski fractal and a monoband antenna,” IEEE Transactions on Antennas and Propagation, vol. 54, n. 11, pp. 3367-3373, November 2006.
A. A. Eldek, “Numerical analysis of a small ultra wideband microstrip fed tap monopole antenna,” Prog. Electromagn. Res., 65, 59-69, 2006.
M. Naser-Moghadasi, G. R. Dadashzadeh, M. Abdollahvand, Y. Zehforoosh, and B. S. Virdee, “Planar triangular monopole antenna with multioctave bandwidth,” Microw. Opt. Technol. Lett., 53: 10-14, 2011.
R. A. Sadeghzadeh, Y. Zehforoosh, and N. Mirmotahhary, “Ultra-wideband monopole antenna with modified triangular patch,” Microw. Opt. Technol. Lett., 53: 1752-1756, 2011.