A micro size terahertz wheel shaped antenna with non-defected ground structure

Abstract

A  micro  dimension  antenna  with  wheel-geometrical  wide-band terahertz (THz)is suggested in this research. In the circular shaped patch, concentric circle  shaped  slots  are  incorporated  to  form  a  wheel  shaped  patch  antenna. The  suggested  model  is  designed  on  a  polymide  substrate  with  dielectric constant of 4.3 and thickness of 20 μm. The suggested prototype antenna is very much compact in size of 210×160 μm2. The designed antenna achieves a  wideband  operation  from  8.692  THz  to  9.772  THz.  This  prototype antenna’s maximum realized gain is 10.2 dBi at 9.0 THz. This high gain is important  for  wide  range  of  wireless  applications.  The  radiation  pattern, radiation  efficiency,  reflection  coefficient,  surface  current  distribution  and voltage standing wave ratio are examined through the simulation results. In future  video  rate  imaging  system,super  fast  close-range  in-door  wireless communication,   biomedical   picturing,   homeland   defence   equipments, security  scanning,  explosive  detection,  and  characterisation  of  materials  in the THz level will be benefited from the suggested THz antenna.