A comparative study of c‐shaped, e‐shaped, and u‐slotted patch antennas

A class of popular linearly polarized slotted antennas are compared with respect to their RF mechanism, radiation mechanism, impedance matching, and cross polarization characteristics for wireless communication frequency band 1.9–2.4 GHz.It is found that C-shaped and double C-shaped patch antennas, even though miniaturized, suffer from narrow bandwidth and high cross polarization level, due to its orientation of slot. U-slotted and E-shaped patch antennas show high bandwidth with minor penalty in size and cross polarization level. In order to understand the effect of slot on the radiation in these antennas, a novel strategy of looking at the near-field of these antennas has been presented. These near-field plots are analyzed to explain certain far-field radiation characteristics in these antennas such as- cross-pol level. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1746–1757, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26894

[1]  D. Mitra,et al.  Miniaturized C-slot patch antenna for wireless communication , 2010, 2010 International Conference on Signal Processing and Communications (SPCOM).

[2]  Kai-Fong Lee,et al.  Single-layer single-patch wideband microstrip antenna , 1995 .

[3]  Pezholil Mohanan,et al.  Compact CPW-fed ground defected H-shaped slot antenna with harmonic suppression and stable radiation characteristics , 2010 .

[4]  Jean-Yves Dauvignac,et al.  Very compact double C-patch antenna , 1998 .

[5]  N. Myung,et al.  The aperture-coupled U-slotted patch antenna , 1999, IEEE Antennas and Propagation Society International Symposium. 1999 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.99CH37010).

[6]  Chang-Hong Liang,et al.  Polarization Reconfigurable U-Slot Patch Antenna , 2010, IEEE Transactions on Antennas and Propagation.

[7]  Fan Yang,et al.  Authors' reply [to comments on "Wide-band E-shaped patch antennas for wireless communications"] , 2003 .

[9]  A. Papiernik,et al.  The C-patch: a small microstrip element , 1989 .

[10]  K.P. Esselle,et al.  E-shaped patch antennas for high-speed wireless networks , 2004, IEEE Transactions on Antennas and Propagation.

[11]  Xiaoning Ye,et al.  Wide-band E-shaped patch antennas for wireless communications , 2001 .