Compact UWB dielectric resonator antenna with WLAN band rejection

A new compact band-notched dielectric resonator antenna (DRA) for ultra-wideband (UWB) applications is presented. The antenna elements consist of a thin monopole printed antenna loaded with rectangular dielectric resonator (RDR) which is housed into a dielectric substrate, an I-shaped parasitic strip, and a slot on the ground plane. Here, to realize band-notched characteristic, an I-shaped parasitic strip is placed on the top of DRA. By cutting a slot on the ground plane, impedance matching performance is improved. The proposed antenna provides an impedance bandwidth of around 98 %, excellent omni-directional radiation patterns with low cross polarization, nearly constant gain, and high radiation efficiency across the whole desired frequency band.

[1]  Yuehe Ge,et al.  Compact Dielectric Resonator Antennas With Ultrawide 60%–110% Bandwidth , 2011, IEEE Transactions on Antennas and Propagation.

[2]  S. K. A. Rahim,et al.  Novel Design of Compact UWB Dielectric Resonator Antenna With Dual-Band-Rejection Characteristics for WiMAX/WLAN Bands , 2015, IEEE Antennas and Wireless Propagation Letters.

[3]  Christophe Fumeaux,et al.  A Cross-Shaped Dielectric Resonator Antenna for Multifunction and Polarization Diversity Applications , 2011, IEEE Antennas and Wireless Propagation Letters.

[4]  T.A. Denidni,et al.  Wideband L-Shaped Dielectric Resonator Antenna With a Conformal Inverted-Trapezoidal Patch Feed , 2009, IEEE Transactions on Antennas and Propagation.

[5]  A. Ittipiboon,et al.  Theoretical and experimental investigations on rectangular dielectric resonator antennas , 1997 .

[6]  Kenny Seungwoo Ryu,et al.  UWB Dielectric Resonator Antenna Having Consistent Omnidirectional Pattern and Low Cross-Polarization Characteristics , 2011, IEEE Transactions on Antennas and Propagation.

[7]  S. Rahim,et al.  Design of a compact UWB rectangular dielectric resonator antenna using a simple structure , 2014, The 8th European Conference on Antennas and Propagation (EuCAP 2014).

[8]  S. K. A. Rahim,et al.  Frequency-Reconfigurable Rectangular Dielectric Resonator Antenna , 2013, IEEE Antennas and Wireless Propagation Letters.

[9]  Ka Lok Man,et al.  Ultra wideband antennas: past and present , 2010 .

[10]  S. K. A. Rahim,et al.  Ultrawideband Dielectric Resonator Antenna With WLAN Band Rejection at 5.8 GHz , 2013, IEEE Antennas and Wireless Propagation Letters.

[11]  Tayeb A. Denidni,et al.  Band-notched UWB rectangular dielectric resonator antenna , 2014 .

[12]  Li Zhang,et al.  Compact Asymmetrical T-Shaped Dielectric Resonator Antenna for Broadband Applications , 2012, IEEE Transactions on Antennas and Propagation.