OJAPr  Vol.1 No.2 , September 2013
Design of a CPW-Fed Ultra Wide Band Antenna
Abstract: A CPW-fed ultra-wideband antenna was designed. The antenna was etched on a single-layer copper-cladding substrate, of which the material was FR4 with relative permittivity of 4.4, and the magnitude was 40.0 mm × 50.0 mm × 1.6 mm. The parameters of the antenna are simulated and optimized with HFSS. This paper proposes a new trapezoidal CPW-fed UWB antenna that the bandwidth (return loss ≤ ?10 dB) covers 2.7 - 9.3 GHz range, which means a relative bandwidth of 110% with good radiation patterns and gain. Simulated and measured results for return loss, radiation pattern and gain were presented. A good agreement has been obtained between the simulation and experiment and the proposed antenna meets the requirements of the ultra-wideband antenna.
Cite this paper: Hu, S. , Wu, Y. , Zhang, Y. and Zhou, H. (2013) Design of a CPW-Fed Ultra Wide Band Antenna. Open Journal of Antennas and Propagation, 1, 18-22. doi: 10.4236/ojapr.2013.12005.

[1]   [1] W. Zhou, Y. S. Li and C. Y. Liu, “Research on a CPW-Fed Ultra-Wideband Antenna,” Microwaves, Vol. 26, No. 8, 2010, pp. 234-237.

[2]   Y. J. Ren and K. Chang, “An Annual Ring Antenna for UWB Communications,” IEEE Antennas Wireless Propagation Letters, Vol. 5, No. 1, 2006, pp. 274-276.

[3]   C. Zhou, H. L. Cao and L. S. Yang, “An Improved Coplanar Waveguide-Fed Ultra-Wideband Antenna Design,” Chongqing University of Posts and Telecommunications (Natural Science), Vol. 20, No. 1, 2008, pp. 39-41.

[4]   Y. Q. Wu, S. W. Hu, K. M. Liao, H. L. Zhou and M. Tang, “An Improved U-shaped Slot Ultra-Wideband Microstrip Antenna,” Electronic Components and Materials, Vol. 09, 2012, pp. 55-58.

[5]   W.-J. Lu, Y. Cheng and H.-B. Zhu, “Design Concept of a Novel Balanced Ultra-Wideband (UWB) Antenna,” 2010 IEEE International Conference on Ultra-Wideband (ICUWB), Vol. 20, No. 23, 2011, pp. 1-4.

[6]   A. Subbarao and S. Raghavan, “A Novel Pot Shaped CPW-Fed Slot Antenna for Ultra Wideband Applications,” Emerging Trends in Electrical and Computer Technology, Vol. 23, No. 24, 2011, pp. 1119-1122.

[7]   Y. Z. Shen and Law Choi Look, “A Microstrip-Fed Quasi-Spiral Circularly Polarized Ultra-Wideband Antenna,” 2011 IEEE International Symposium on Antennas and Propagation, Vol. 20, No. 23, 2011, pp. 1-4.

[8]   S. J. Shi and H. P. Guo, “A New Type of Ultra-Wideband Planar Monopole Antenna Design,” Communication Technology, Vol. 42, No. 1, 2009, pp. 112-114.

[9]   Y. S. Jia, I. G. Chung and W. C. Zhi, “Broadband CPW-Fed Circularly Polarized Square Slot Antenna with Lightening-Shaped Feedline and Inverted-L Grounded Strips,” IEEE Transactions on Antennas and Propagation, Vol. 3, No. 58, 2010, pp. 973-977.

[10]   M. A. Habib, A. Bostani and A. Djaiz, “Ultra Wideband CPW-Fed Aperture Antenna with WLAN Band Rejection,” Progress in Electromagnetics Research, Vol. 106, 2010, pp. 17-31.

[11]   M. S. Yuan and Y. L. Chung, “CPW-Fed Dual Folded Symmetry Planar Antenna for Multiband Operation,” International Conference on Electromagnetics, Applications and Student Innovation (iWEM), Taipei, 2011, pp. 43-47.

[12]   P. Pongsoon and D. Bunnjaweht, “CPW-Fed Disc Patch Antennas with an Annular Ground Plane for UWB Applications,” International Symposium on Intelligent Signal Processing and Communications Systems (ISPACS), Chiang Mai, 2011, pp.1-4.

[13]   J. X. Huang, F. S. Zhang and Q. Zhang, “Novel Wide-Slot Antenna Fed by Equiangular Spiral for Ultra-Wideband Communications,” Processing IEEE International Conference on Ultra-Wideband (ICUWB), 2010, Vol. 1, pp. 1-3.

[14]   S. Shrestha, J.-J. Park, S.-K. Noh and D.-Y. Choi, “Design of 2.45 GHz Sierpinski Fractal Based Miniaturized Microstrip Patch Antenna,” 18th Asia-Pacific Conference on Communications (APCC), 15-17 October 2012, pp. 36-41.

[15]   D. Nashaat, H. A. Elsadek, E. A. Abdallah, M. F. Iskander and H. M. Elhenawy, “Ultrawide Bandwidth 2 × 2 Microstrip Patch Array Antenna Using Electromagnetic Band-Gap Structure (EBG),” IEEE Transactions on Antennas and Propagation, Vol. 59, No. 5, 2011, pp. 1528-1534.

[16]   R. J. Chitra and V. Nagarajan, “Design of Double U-Slot Microstrip Patch Antenna Array for WiMAX,” 2012 International Conference on Green Technologies (ICGT), 18-20 December 2012, pp. 130-134.

[17]   M.-P. Jin, M.-Q. Qi and W. Wang, “A Conformal Microstrip Patch Antenna Array,” 2011 3rd International Asia-Pacific Conference on Synthetic Aperture Radar (APSAR), 26-30 September 2011, pp. 1-2.

[18]   F. Zhang, F.-S. Zhang, Y.-B. Yang and Z. Zhang, “Wide Band Antenna Array Using Bowtie-Shaped Microstrip Patch Antenna,” 2010 International Conference on Microwave and Millimeter Wave Technology (ICMMT), 8-11 May 2010, pp. 424-427