Fabrication and experimental validation of high gain lens antenna for 71–86GHz band

This article presents the fabrication and experimental validation results of compact size high gain conical horn lens antenna for E-band (71-86GHz) applications. Very promising measured results are obtained in terms of return loss |S<;sub>11<;/sub>|, gain, aperture efficiency, bandwidth and SLL as will be shown in this article. A peak measured gain of 25.8dB, gain improvement 6.5~8.8dB over the gain of the horn without lens, maximum aperture efficiency of 48.8%, SLL<;-15.6dB and |S<;sub>11<;/sub>|<;-10dB for 70-110GHz band.