ULTRA-WIDEBAND SMALL SQUARE MONOPOLE ANTENNA WITH VARIABLE FREQUENCY BAND-NOTCH FUNCTION

In this paper, a novel printed monopole antenna for ultra wideband applications with variable frequency band-notch characteristic is presented. The proposed antenna consists of a stepped square radiating patch with modifled W-shaped slot and a ground plane with rectangular sleeve and pair of L-shaped resonator which provides a wide usable fractional bandwidth of more than 130% (3.05{14.3GHz). By cutting a modifled W-shaped slot with variable dimensions on the radiating patch frequency band-stop performance is generated and we can control its characteristics such as band-notch frequency and its bandwidth. The designed antenna has a small size of 12 £ 18mm 2 while showing the band rejection performance in the frequency band of 5.08 to 5.91GHz.

[1]  Mohammadnaghi Azarmanesh,et al.  SMALL SEMI-CIRCLE-LIKE SLOT ANTENNA FOR ULTRA-WIDEBAND APPLICATIONS , 2010 .

[2]  Chaoyuan Ding,et al.  A Compact Ultra-Wideband Microstrip Antenna with Multiple Notches , 2008 .

[3]  W.-S. Chen,et al.  Planar CPW-fed sleeve monopole antenna for ultra-wideband operation , 2005 .

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

[5]  Zhi Ning Chen.  Impedance characteristics of planar bow-tie-like monopole antennas , 2000 .

[6]  J.A. Evans,et al.  Planar trapezoidal and pentagonal monopoles with impedance bandwidths in excess of 10:1 , 1999, IEEE Antennas and Propagation Society International Symposium. 1999 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.99CH37010).

[7]  J. Nourinia,et al.  Small Square Monopole Antenna With Inverted T-Shaped Notch in the Ground Plane for UWB Application , 2009, IEEE Antennas and Wireless Propagation Letters.

[8]  Hans Schantz,et al.  The art and science of ultrawideband antennas , 2005 .

[9]  Seong-Youp Suh,et al.  A new ultrawideband printed monopole antenna: the planar inverted cone antenna (PICA) , 2004, IEEE Transactions on Antennas and Propagation.

[10]  Max J. Ammann,et al.  Impedance bandwidth of the square planar monopole , 2000 .

[11]  M. Ojaroudi,et al.  Small Square Monopole Antenna for UWB Applications With Variable Frequency Band-Notch Function , 2009, IEEE Antennas and Wireless Propagation Letters.

[12]  Jihak Jung,et al.  A small wideband microstrip-fed monopole antenna , 2005 .

[13]  Tianling Zhang,et al.  PLANAR MONOPOLE ANTENNA WITH BAND-NOTCH CHARACTERIZATION FOR UWB APPLICATIONS , 2009 .