A Novel Design of Dual Band-Notched Slot Antenna Using a Pair of ?-Shaped Protruded Strips for UWB Applications
Keywords:
H-shaped slot, microstrip-fed slot antenna, protruded -shaped strip, ultrawideband (UWB) applicationsAbstract
In this paper, we present a novel design of dual band-notch printed slot antenna for UWB applications. The antenna consists of a square radiating stub and a ground plane structure with an H-shaped slot and a pair of ?-shaped strips protruded inside rectangular slot, which provides a wide usable fractional bandwidth of more than 145% (2.49 GHz ? 15.73 GHz). In order to increase the impedance bandwidth of the ordinary slot antenna, we use an H-shaped slot in the ground plane, through which an UWB frequency range can be achieved. Additionally, by using a protruded ?-shaped strip in the top edge of the rectangular slot a single frequency band-stop performance can be achieved, also in order to create the second notch frequency, we insert the second protruded ?-shaped strip in the bottom edge of the rectangular slot. Simulated and measured results obtained for this antenna show that the proposed slot antenna offers two notched bands, covering all the 5.2/5.8 GHz WLAN, 3.5/5.5 GHz WiMAX and 4 GHz C-band range. The antenna has a small dimension of 20?20 mm2.
Downloads
References
H. Schantz, The art and Science of Ultra Wideband Antennas, Artech House 2005.
M. Ojaroudi, S. Bashiri, N. Ojaroudi, and M. T. Partovi, “Octave-band, multi-resonance CPW-fed small slot antenna for UWB applications,” Electronic Lett., vol. 48, no. 16, pp. 980-982, 2012.
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.
M. Ojaroudi, N. Ojaroudi, and Y. Ebazadeh, “Dual band-notch small square monopole antenna with enhanced bandwidth characteristics for UWB applications,” Appl. Comp. Electro. Society (ACES) Journal, vol. 27, no.5, pp. 420-426, May 2012.
B. Hadian, M. Ojaroudi, and N. Ojaroudi, “Enhanced bandwidth small square monopole antenna with band-notched functions for UWB wireless communications,” Appl. Comp. Electro. Society (ACES) Journal, vol. 27, no. 9, pp. 759- 765, Sep. 2012.
R. Azim, M. T. Islam, and N. Misran, “Design of a planar UWB antenna with new band enhancement technique,” Appl. Comp. Electro. Society (ACES) Journal, vol. 26, no. 10, pp. 856-862, Oct. 2011.
J. William and R. Nakkeeran, “A new UWB slot antenna with rejection of WiMax and WLAN bands,” Appl. Comp. Electro. Society (ACES) Journal, vol. 25, no. 9, pp. 787-793, Sep. 2010.
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.
D. S. Javan and O. H. Ghouchani, “Cross slot antenna with U-shaped tuning stub for ultra wideband applications,” Appl. Comp. Electro. Society (ACES) Journal, vol. 24, no. 4, pp. 427-432, August 2009.
Ansoft High Frequency Structure Simulation (HFSS), Ver. 10, Ansoft Corporation, 2005.
N. Ojaroudi and M. Ojaroudi, “Dual band-notch slot antenna by using a pair of Γ-shaped slits and Ω–shaped parasitic structure for UWB applications,” Microw. Opt. Technol. Lett., vol. 55, pp. 102-105, 2013.
N. Ojaroudi, M. Ojaroudi, and H. Ebarhimian, “Band-notched UWB microstrip slot antenna with enhanced bandwidth by using a pair of C-shaped slots,” Microw. Opt. Technol. Lett., vol. 54, pp. 515-518, 2012.
N. Ojaroudi and M. Ojaroudi, “Dual band-notch square monopole antenna with a modified ground plane for UWB applications,” Microw. Opt. Technol. Lett., vol. 54, pp. 2743-2747, 2012.
M. N. Jahromi and N. K. Barchloui, “Analysis of the behavior of Sierpinski carpet monopole antenna,” Appl. Comp. Electro. Society (ACES) Journal, vol. 24, no. 1, pp. 32-36, Feb. 2009.
