Optically reconfigurable planar monopole antenna for cognitive radio application Articles uri icon

publication date

  • January 2019

start page

  • 1110

end page

  • 1115


  • 4


  • 61

International Standard Serial Number (ISSN)

  • 0895-2477

Electronic International Standard Serial Number (EISSN)

  • 1098-2760


  • Frequency reconfigurable antenna is one of the important elements needed for cognitive radio application. Such antenna can be designed using highly resistive (HR) silicon (Si) operating as an optical switch. This letter presents a novel frequency reconfigurable planar monopole antenna suitable for cognitive radio application. The antenna is designed using HR Si working as an optical switch. The main idea behind the design of antenna is the redistribution of surface current on the antenna while changing the state of Si switches optically from high resistance to low resistance. The antenna is highly compact and uses only two switches for multiband reconfiguration. It is switchable on 1.9 GHz, 2.75 GHz, 3.7 GHz, 4.1 GHz, 4.6 GHz, 4.8 GHz, and 7.6 to 11 GHz frequency bands. Simulated and measured results are presented for the antenna. To the best of authors knowledge, this is the first multiband optically reconfigurable planar monopole antenna. © 2019 Wiley Periodicals, Inc.


  • cognitive radio high-resistive (hr) silicon low-resistive (lr) silicon multiband optical excitation planar monopole antenna reconfigurable microwave antennas monopole antennas optical switches photoexcitation frequency reconfigurable frequency reconfigurable antenna high resistance measured results multiband planar monopole antenna radio applications reconfigurable cognitive radio