Semi-transparent frequency reconfigurable antenna with DGS

In this letter, a semi-transparent frequency reconfigurable antenna is proposed and investigated. This antenna is implemented on glass as a substrate, AgHT-4 as a radiating element and copper as its ground plane to result in a semi-transparent feature. A pair of PIN diodes is utilized as microwave switches along with a DC biasing circuit. This proposed antenna is fed by a CPW arrangement and introduces unequal E-shaped Defected Ground Structure (DGS) on the ground plane for modification of the electrical length. The antenna exhibits a −10 dB impedance bandwidth from 3 to 6 GHz when PIN diodes are ON, and a resonance at 4.75 GHz when pin diodes are OFF. The proposed antenna is fabricated to validate its performance in terms of reflection coefficient and radiation pattern.

[1]  P. S. Hall,et al.  Frequency-Reconfigurable Archimedean Spiral Antenna , 2013, IEEE Antennas and Wireless Propagation Letters.

[2]  S. K. Abdul Rahim,et al.  Dual-Band CPW-Fed Transparent Antenna for Active RFID Tags , 2015, IEEE Antennas and Wireless Propagation Letters.

[3]  R Plana,et al.  Novel Reconfigurable Defected Ground Structure Resonator on Coplanar Waveguide , 2010, IEEE Transactions on Antennas and Propagation.

[4]  S. W. Cheung,et al.  Optically Transparent Dual-Band MIMO Antenna Using Micro-Metal Mesh Conductive Film for WLAN System , 2017, IEEE Antennas and Wireless Propagation Letters.

[5]  Sharul Kamal Abdul Rahim,et al.  A grounded CPW transparent UWB antenna for UHF and microwave frequency application , 2013 .

[6]  S. W. Cheung,et al.  A Novel Transparent TSA for Laptop and UWB Applications , 2012 .

[7]  Mohd Faizal Jamlos,et al.  Frequency reconfigurable antenna for WLAN application , 2017 .

[8]  M. Hamid,et al.  Reconfigurable monopole antennas , 2011, Proceedings of the 5th European Conference on Antennas and Propagation (EUCAP).

[9]  Xiaowei Shi,et al.  An Overview on Defected Ground Structure , 2008 .

[10]  Sharul Kamal Abdul Rahim,et al.  Electromagnetic Behaviors of Thin Film CPW-Fed CSRR Loaded on UWB Transparent Antenna , 2014, IEEE Antennas and Wireless Propagation Letters.

[11]  Sharul Kamal Abdul Rahim,et al.  CPW-Fed Transparent Antenna for Extended Ultrawideband Applications , 2014, IEEE Antennas and Wireless Propagation Letters.

[12]  P. Gardner,et al.  Vivaldi Antenna With Integrated Switchable Band Pass Resonator , 2011, IEEE Transactions on Antennas and Propagation.

[13]  Muhammad Ramlee Kamarudin,et al.  Circular polarized transparent antenna for 5.8 GHz WLAN applications , 2015 .