Ultrawideband EH shaped stack patch antenna for wireless communications

A broadband folded patch feed antenna for ultrawideband (UWB) application is proposed and designed. The antenna consists of a folded patch feed and a shorting wall attached to E and H shaped stack patch. Bandwidth broadening is achieved by an H shaped patch fed by a folded patch feed and the size reduction is realized through the use of shorting wall. Electromagnetic coupling in between E and H shaped stack patch further enhance the impedance bandwidth in this design. The proposed antenna has a small electrical size of 19 × 15 × 10 mm3 and an impedance bandwidth of 102.36% ranging from 3.42 to 10.59 GHz. Relatively stable radiation patterns with gain greater than 4.5 dBi is obtained over the entire bandwidth.

[1]  Kwai-Man Luk,et al.  Theory and experiment on microstrip patch antennas with shorting walls , 2000 .

[2]  Luk,et al.  Broadband triangular patch antenna with a folded shorting wall , 2004, IEEE Antennas and Wireless Propagation Letters.

[3]  L. Shafai,et al.  Resonance behavior of single U-slot and dual U-slot antenna , 2001, IEEE Antennas and Propagation Society International Symposium. 2001 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.01CH37229).

[4]  Y. Chow,et al.  Broadband microstrip patch antenna , 1998 .

[5]  Kwai-Man Luk,et al.  Bandwidth enhancement technique for quarter-wave patch antennas , 2003 .

[6]  Charalampos C. Tsimenidis,et al.  Dual layer stacked rectangular microstrip patch antenna for ultra wideband applications , 2007 .

[7]  Ban-Leong Ooi,et al.  Broadband air-filled stacked U-slot patch antenna , 1999 .

[8]  Hang Wong,et al.  Study of small wideband folded-patch-feed antennas , 2007 .

[9]  K.M. Luk,et al.  FDTD analysis of U-slot rectangular patch antenna , 1997, IEEE Antennas and Propagation Society International Symposium 1997. Digest.

[10]  H. Elsadek,et al.  Multiband and UWB V-Shaped Antenna Configuration for Wireless Communications Applications , 2008, IEEE Antennas and Wireless Propagation Letters.

[11]  Junji Yamauchi,et al.  Electromagnetically coupled curl antenna , 1997 .

[12]  Jianxin Liang,et al.  Study of printed elliptical/circular slot antennas for ultrawideband applications , 2006 .