Antenna element operating at 100 GHz

Abstract

In this work, a novel patch antenna fed by a CPW square loop feed, was design in HFSS to work at a centre frequency of 100 GHz, having a minimum requirement of at least 5 percent offractional bandwidth. An end launch connector, up to 110 GHz, was used for measurement purposes, imposing the design of a GCPW-to-CPW transition, as well as a TRL calibration kit. The antenna and calibration kit were fabricated in RT/duroid 5880 substrate with 0.127 mm of thickness. The experimentally obtained −10 dB impedance bandwidth was 6.7 GHz (versus 7.66 GHz simulated) and the measured peak gain at 100 GHz was 6.3 dBi (versus 6.1 dBi simulated).