A wideband frequency reconfigurable rectangular dielectric resonator antenna

A wideband frequency reconfigurable dielectric resonator antenna (DRA) is presented and discussed. The proposed antenna is capable of frequency switching at two different bands between 4.12 GHz and 8.85 GHz. The rectangular dielectric resonator with a permittivity of 15 is fed by U-shaped microstrip feed line. By setting the switch on the connecting lines of a network that feeds the dielectric element and changing the state of switch from ON to OFF, a shift of the well-matched operating frequency range is obtained. The total antenna dimensions are 40 × 45 × 4.5748 mm3. The results indicate that the proposed antenna with acceptable performance provides two wideband modes with the impedance bandwidth of 49% and 25%.

[1]  Kwok Wa Leung,et al.  Frequency tuning of the linearly and circularly polarized dielectric resonator antennas using multiple parasitic strips , 2006, IEEE Transactions on Antennas and Propagation.

[2]  T. Peter,et al.  A Reconfigurable Wideband and Multiband Antenna Using Dual-Patch Elements for Compact Wireless Devices , 2012, IEEE Transactions on Antennas and Propagation.

[3]  Thomas Apperley,et al.  An Air-Gap-Based Frequency Switching Method for the Dielectric Resonator Antenna , 2014, IEEE Antennas and Wireless Propagation Letters.

[4]  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.

[5]  Frequency tunable rectangular dielectric resonator antenna , 2009, 2009 IEEE Antennas and Propagation Society International Symposium.

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

[7]  K. So,et al.  Bandwidth enhancement and frequency tuning of the dielectric resonator antenna using a parasitic slot in the ground plane , 2005, IEEE Transactions on Antennas and Propagation.

[8]  Sharul Kamal Abdul Rahim,et al.  Frequency reconfigurable dielectric resonator antenna for WiMAX/WLAN applications , 2015 .

[9]  Zhenghe Feng,et al.  Experimental Investigation of New Radiating Mode in Rectangular Hybrid Dielectric Resonator Antenna , 2011, IEEE Antennas and Wireless Propagation Letters.

[10]  S. Kingsley,et al.  Tunability of Liquid Dielectric Resonator Antennas , 2007, IEEE Antennas and Wireless Propagation Letters.

[11]  Muhammad Ramlee Kamarudin,et al.  A compact dual bevel planar monopole antenna with lumped element for ultra high frequency/very high frequency application , 2012 .

[12]  S. K. A. Rahim,et al.  A Compact Frequency-Reconfigurable Dielectric Resonator Antenna for LTE/WWAN and WLAN Applications , 2015, IEEE Antennas and Wireless Propagation Letters.

[13]  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.

[14]  X. Sheng,et al.  Frequency-Tunable Differentially Fed Rectangular Dielectric Resonator Antennas , 2011, IEEE Antennas and Wireless Propagation Letters.