Design of a Very Compact Ultra wideband Printed Antenna with Rounded Corners

In this paper, a very compact UWB microstrip-fed antenna is presented. By only sequentially inserting the three notches with proper sizes and tuning their dimensions in two corners of the rectangular radiating patch, very good radiation and impedance characteristics are obtained. The proposed antenna has a very wide impedance bandwidth measured at about 15 GHz (3 up to18 GHz, bandwidth ratio about 1:6) for S11 <10 dB. Moreover, the stability of the H-plane radiation patterns of the proposed antenna is maintained in omnidirectional form within the frequency bandwidth up to 16 GHz.

[1]  H.Y.D. Yang,et al.  A Printed Crescent Patch Antenna for Ultrawideband Applications , 2007, IEEE Antennas and Wireless Propagation Letters.

[2]  Seong-Ook Park,et al.  Analysis of the small band-rejected antenna with the parasitic strip for UWB , 2006 .

[3]  Abdolali Abdipour,et al.  A Very Compact Ultrawideband Printed Omnidirectional Monopole Antenna , 2010, IEEE Antennas and Wireless Propagation Letters.

[4]  Y. Ranga,et al.  Ultrawideband Printed Elliptical Monopole Antennas , 2007, IEEE Transactions on Antennas and Propagation.

[5]  M. Bialkowski,et al.  Design of Ultrawideband Planar Monopole Antennas of Circular and Elliptical Shape , 2008, IEEE Transactions on Antennas and Propagation.

[6]  A. Dastranj,et al.  Bandwidth Enhancement of Printed E-Shaped Slot Antennas Fed by CPW and Microstrip Line , 2010, IEEE Transactions on Antennas and Propagation.

[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]  Seong-Ook Park,et al.  A miniature UWB planar monopole antenna with 5-GHz band-rejection filter and the time-domain characteristics , 2006, IEEE Transactions on Antennas and Propagation.

[9]  Tzyh-Ghuang Ma,et al.  Design of a Multiresonator Loaded Band-Rejected Ultrawideband Planar Monopole Antenna With Controllable Notched Bandwidth , 2008, IEEE Transactions on Antennas and Propagation.

[10]  C. Gomez-Calero,et al.  A novel ultra‐wideband frequency planar notch‐filter antenna , 2010 .