A novel pierced rectangular dielectric resonator antenna for wideband communication systems

In this paper, a novel pierced rectangular dielectric resonator antenna for wideband communication systems has been proposed. The effect of piercing array of square shaped slots and further, providing an air gap between dielectric resonator element and ground plane results in the lowering of `Q' factor and enhancement of the bandwidth S11 <; -10 dB because both are inversely related. Numerical analysis has been performed to find effective dielectric constant. The enhancement in bandwidth is from 9.8 % to 41 % at the resonant frequency of 3.3 GHz with the peak gain of 6.4 dBi. The mode excited is the fundamental TE111 mode. The proposed antenna finds application in various wideband communication systems falling in the range of 3.03 - 4.38 GHz.

[1]  Ahmed A. Kishk,et al.  Bandwidth Enhancement and Radiation Characteristics Improvement of Rectangular Dielectric Resonator Antenna , 2011, IEEE Antennas and Wireless Propagation Letters.

[2]  Stuart A. Long,et al.  Rectangular dielectric resonator antenna , 1983 .

[3]  Stuart A. Long,et al.  Resonant hemispherical dielectric antenna , 1984 .

[4]  H. Ng,et al.  Dielectric Resonator Antennas , 2005 .

[5]  Stuart A. Long,et al.  The resonant cylindrical dielectric cavity antenna , 1983 .

[6]  M. Cuhaci,et al.  An investigation of a novel broadband dielectric resonator antenna , 1996, IEEE Antennas and Propagation Society International Symposium. 1996 Digest.

[7]  Array of perforated dielectric resonator antennas , 2004, IEEE Antennas and Propagation Society Symposium, 2004..

[8]  Gabriel M. Rebeiz,et al.  Millimeter-wave tapered-slot antennas on synthesized low permittivity substrates , 1999 .

[9]  Prakash Bhartia,et al.  Dielectric resonator antennas—a review and general design relations for resonant frequency and bandwidth , 1994 .

[10]  A. Rashidian,et al.  On the Two Segmented and High Aspect Ratio Rectangular Dielectric Resonator Antennas for Bandwidth Enhancement and Miniaturization , 2009, IEEE Transactions on Antennas and Propagation.

[11]  C. Di Nallo,et al.  Multimode dielectric resonator antenna of very high permittivity , 2004, IEEE Antennas and Propagation Society Symposium, 2004..

[12]  A. Petosa,et al.  Perforated dielectric resonator antennas , 2002 .

[13]  Tayeb A. Denidni,et al.  Rectangular dielectric resonator antenna for ultrawideband applications , 2009 .