Design and Analysis of a Koch Snowflake Fractal Monopole Antenna for Wideband Communication
关键词:
Constant gain, fractal geometry, wideband antenna, wireless communication摘要
In this article a compact wideband monopole antenna with constant high gain has been designed and fabricated for wideband microwave communication. Koch fractal geometry has been applied for design of this antenna structure. A wide bandwidth of 3.3 GHz (3.0 GHz to 6.3 GHz) has been obtained, which covers the IEEE 802.11 WLAN bands (5.2 GHz and 5.8 GHz) and WiMAX bands (3.5 GHz and 5.5 GHz). The proposed antenna is characterized by its high gain which remains constant throughout the entire operation bandwidth. An average gain of 5.07 dBi has been realized at all the frequencies of interest. The realized antenna gains are 5.01 dBi, 5.07 dBi, 5.09 dBi and 5.11 dBi at frequencies of 3.5 GHz, 5.2 GHz, 5.5 GHz and 5.8 GHz respectively. Good agreement between simulated and measured results justifies the applicability of the proposed antenna for wideband communication purpose, particularly for the WLAN and WiMAX microwave frequency bands of interest.
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参考
H. Fallahi and Z. Atlasbaf, “Study of a class of UWB CPW-fed monopole antenna with fractal elements,” IEEE Antennas and Wireless Propagation Letters, vol. 12, pp. 1484-1487, 2013.
W. C. Weng and C. L. Hung, “An H-fractal antenna for multiband applications,” IEEE Antennas and Wireless Propagation Letters, vol. 13, pp. 1705- 1708, 2014.
J. Gemio, J. Parron Granados, and J. Soler Castany, “Dual-band antenna with fractal-based ground plane for WLAN applications,” IEEE Antennas and Wireless Propagation Letters, vol. 8, pp. 748- 751, 2009.
R. Ghatak, R. K. Mishra, and D. R. Poddar, “Perturbed Sierpinski carpet antenna with CPW feed for IEEE 802.11 a/b WLAN application,” IEEE Antennas and Wireless Propagation Letters, vol. 7, pp. 742-744, 2008.
S. Chaimool, C. Chokchai, and P. Akkaraekthalin, “Multiband loaded fractal loop monopole antenna for USB dongle applications,” Electronics Letters, vol. 48, no. 23, pp. 1446-1447, Nov. 8, 2012.
W. L. Chen, G. M. Wang, and C. X. Zhang, “Bandwidth enhancement of a microstrip-line-fed printed wide-slot antenna with a fractal-shaped slot,” IEEE Transactions on Antennas and Propagation, vol. 57, no. 7, pp. 2176-2179, July 2009.
A. Kundu, U. Chakraborty, and A. K. Bhattacharjee, “Design of a compact wide band microstrip antenna with very low VSWR for WiMAX applications,” International Journal of Microwave and Wireless Technologies, vol. 9, iss. 3, pp. 685- 690, Apr. 2017.
K. El. Mahgoub, “Slotted triangular monopole antenna for UHF RFID readers,” Applied Computational Electromagnetics Society (ACES) Express Journal, vol. 1, no. 1, pp. 24-27, Jan. 2016.
M. Naghshvarian-Jahromi, “Novel wideband planar fractal monopole antenna,” IEEE Transactions on Antennas and Propagation, vol. 56, no. 12 pp. 3844-3849, Dec. 2008.
A. Bhattacharya, B. Roy, S. K. Chowdhury, and A. K. Bhattacharjee, “A compact fractal monopole antenna with defected ground structure for wideband communication,” Applied Computational Electromagnetics Society (ACES) Express Journal, vol. 1, no. 8, pp. 228-231, Oct. 2016.
