A Novel Compact Ultra-Wideband Antenna with Single and Double Band Rejection

Band-notch characteristic has been of great interest recently to overcome the electromagnetic interference of Ultra-wideband systems (UWB) with other existing ones. In this paper, we present a novel microstrip-fed antenna with band rejection property appropriate for UWB applications. Band-notch characteristic has been achieved by adding a rectangular resonant element to the ground section. A prototype was fabricated and measured based upon optimal parameters. Experimental results show consistency with simulation results. Measurement results confirm that the antenna covers the UWB band and satisfies a band rejection in the frequency span of 5 GHz to 5.7 GHz to restrain it from interference with Wireless Local Area Network (WLAN). Then, to achieve better isolation, a rectangular strip is appended to the band-notch creating part of the ground section to enhance obtained VSWR up to 30 through simulation. In addition, by applying a similar technique, a dual band-notched characteristic with an average simulated VSWR of around 13.75 has been achieved for WLAN and the downlink of X band satellite communication systems with each more than 10. Features such as small size, omnidirectional pattern and perfect isolation make the antenna suitable for any UWB applications.

[1]  Changiz Ghobadi,et al.  UWB semi-elliptical printed monopole antenna with subband rejection filter , 2010 .

[2]  L. Ye,et al.  IMPROVED DUAL BAND-NOTCHED UWB SLOT ANTENNA WITH CONTROLLABLE NOTCHED BANDWIDTHS , 2011 .

[3]  Guoping Gao,et al.  A DOUBLE-PRINTED TRAPEZOIDAL PATCH DIPOLE ANTENNA FOR UWB APPLICATIONS WITH BAND- NOTCHED CHARACTERISTIC , 2010 .

[4]  J.E. Mazo,et al.  Digital communications , 1985, Proceedings of the IEEE.

[5]  Liang-Hua Ye,et al.  Improved Dual Band-Notched UWB Slot Antenna with Controllable Notched Bandwidths , 2011 .

[6]  Chang-Fa Yang,et al.  Compact Monopole Antenna With Band-Notched Characteristic for UWB Applications , 2010, IEEE Antennas and Wireless Propagation Letters.

[7]  G. G. Stokes "J." , 1890, The New Yale Book of Quotations.

[8]  Byungje Lee,et al.  Compact UWB Antenna With I-Shaped Band-Notch Parasitic Element for Laptop Applications , 2009, IEEE Antennas and Wireless Propagation Letters.

[9]  Tayeb A. Denidni,et al.  ULTRA WIDEBAND CPW-FED APERTURE ANTENNA WITH WLAN BAND REJECTION , 2010 .

[10]  Reza Faraji-Dana,et al.  A miniaturised monopole antenna for ultra-wide band applications with band-notch filter , 2009 .

[11]  A. Kishk,et al.  UWB Antenna With Single or Dual Band-Notches for Lower WLAN Band and Upper WLAN Band , 2009, IEEE Transactions on Antennas and Propagation.

[12]  Dong Chen,et al.  A Novel Compact Ultra-Wideband (UWB) Wide Slot Antenna with via Holes , 2009 .

[13]  Changiz Ghobadi,et al.  A Modified Microstrip-Fed Two-Step Tapered Monopole Antenna for UWB and WLAN Applications , 2007 .

[14]  Raed A. Abd-Alhameed,et al.  A Simple and Compact Planar Ultra Wideband Antenna with Single or Dual Band-Notched Characteristics , 2012 .

[15]  Niruth Prombutr,et al.  Bandwidth Enhancement of UWB Microstrip Antenna with a Modified Ground Plane , 2009 .

[16]  M Ojaroudi,et al.  Small Square Monopole Antenna With Enhanced Bandwidth by Using Inverted T-Shaped Slot and Conductor-Backed Plane , 2011, IEEE Transactions on Antennas and Propagation.

[17]  Wei Hong,et al.  Analysis of Planar Ultrawideband Antennas With On-Ground Slot Band-Notched Structures , 2009, IEEE Transactions on Antennas and Propagation.

[18]  C. C. Chiau,et al.  Study of a printed circular disc monopole antenna for UWB systems , 2005, IEEE Transactions on Antennas and Propagation.

[19]  Abdelnasser A. Eldek,et al.  NUMERICAL ANALYSIS OF A SMALL ULTRA WIDEBAND MICROSTRIP-FED TAP MONOPOLE ANTENNA , 2006 .