Low Profile Dual Band-Notched Slot Antenna with Modified Ground Plane for UWB Systems
Keywords:
C-shaped slot, dual band-notched performance, inverted U-shaped conductor-backed plane, protruded T-shaped strip and UWB slot antennaAbstract
In this paper, a new compact microstrip-fed slot antenna with dual band-notched performance for Ultra-Wideband (UWB) communications is presented. In the proposed structure, by using an inverted U-shaped conductor-backed plane, a new resonance at 12.5 GHz is excited and hence much wider impedance bandwidth can be produced. In order to generate a single band-notched function, we use an inverted T-shaped strip protruded inside the rectangular slot, with this structure first rejection band around of 3.3-4.2 GHz can be achieved. By inserting a pair of C-shaped slots in the ground plane, dual bandnotched function can be produced. The measured results reveal that the presented dual band-notched slot antenna offers a wide bandwidth from 2.62 GHz to 13.81 GHz, with two notched bands covering all the 5.2/5.8 GHz WLAN, 3.5/5.5 GHz WiMAX and 4-GHz C bands. The proposed antenna has a small size. Simulated and experimental results obtained for this antenna show that it exhibits good radiation behavior within the UWB frequency range.
Downloads
References
R. Azim, M. T. Islam and N. Misran, “Design of a planar UWB antenna with new band enhancement technique,” Applied Computational Electromagnetics Society (ACES) Journal, vol. 26, no. 10, pp. 856-862, 2011.
K. Chung, T. Yun and J. Choi, “Wideband CPWfed monopole antenna with parasitic elements and slots,” Electronics Letters, vol. 40, no. 17, pp. 1038-1040, 2004.
J. Y. Sze and K. L. Wong, “Bandwidth enhancement of a microstrip line-fed printed wideslot antenna,” IEEE Trans. Antennas Propag., vol. 49, pp. 1020-1024, 2001.
Y. W. Jang, “Experimental study of large bandwidth three-offset microstrip line-fed slot antenna,” IEEE Microw. Wireless Comp. Lett., vol. 11, pp. 425-426, 2001.
C. Y. D. Sim, W. T. Chung and C. H. Lee, “Planar UWB antenna with 5 GHz band rejection switching function at ground plane,” Progress In Electromagnetics Research, vol. 106, pp. 321-333, 2010.
N. Ojaroudi and N.Ghadimi, “UWB small slot antenna with WLAN frequency band-stop function,” Electron. Lett, vol. 49, pp. 1317–11318, 2013.
J. C. Ding, Z. L. Lin, Z. N. Ying and S. L. He, “A compact ultra-wideband slot antenna with multiplenotch frequency bands,” Microwave and Optical Technology Letter, vol. 49, no. 12, pp. 3056-3060, 2007.
K. H. Kim and S. O. Park, “Analysis of the small band-rejected antenna with the parasitic strip for UWB,” IEEE Transactions on Antennas and Propagation, vol. 54, no. 6, pp. 1688-1692, 2006.
C. Y. Pan, K. Y. Chiu, J. H. Duan and J. Y. Jan, “Band-notched ultra-wideband planar monopole antenna using shunt open-circuited stub,” Microwave and Optical Technology Letter, vol. 53, no. 7, pp. 1535-1537, 2011.
“Ansoft High Frequency Structure Simulation (HFSS),” ver. 13, Ansoft Corporation, 2010.
M. R. Hamid, P. S. Hall, P. Gardner and F. Ghanem, “Switched WLAN wideband tapered slot antenna,” Electronics Letters, vol. 46, no. 1, pp. 23-24, 2010.
Y. S. Li, X. D. Yang, C. Y. Liu and T. Jiang, “Analysis and investigation of a cantor set fractal UWB antenna with a notch-band characteristic,” Progress In Electromagnetics Research B, vol. 33, pp. 99-114, 2011.
A. Foudazi, H. R. Hassani and S. M. Nezhad, “Small UWB planar monopole antenna with added GPS/GSM/WLAN bands,” IEEE transactions on Antenna & Propagation, vol. 60, no. 6, June 2012.
N. Ojaroudi, “Compact UWB monopole antenna with enhanced bandwidth using rotated l-shaped slots and parasitic structures,” Microw. Opt. Technol. Lett., vol. 56, pp. 175-178, 2014.
N. Ojaroudi, “Design of microstrip antenna for 2.4/5.8 GHz RFID applications,” German Microwave Conference, GeMic, RWTH Aachen University, Germany, March 10-12, 2014.
N. Ojaroudi, “Application of protruded strip resonators to design an UWB slot antenna with WLAN band-notched characteristic,” Progress in Electromagnetics Research C, vol. 47, pp. 111- 117, 2014.
N. Ojaroudi, “Microstrip monopole antenna with dual band-stop function for UWB applications,” Microw. Opt. Technol. Lett., vol. 56, pp. 818-822, 2014.
