A Wideband High-Gain Circularly-Polarized Dielectric Horn Antenna Equipped With Lamé-Axicon Stacked-Disk Lens for Remote Sensing, Air Traffic Control and Satellite Communications

A wideband high-gain circularly polarized (CP) shaped dielectric horn-lens antenna (SDHLA) operating in the frequency band between 6.7 and 18.2 GHz [fractional impedance bandwidth (FIBW) of 92.4%] with a 3-dB axial-ratio range from 8.1 to 16.3 (FARBW) 67.2%], is presented. The antenna, composed suitably horn, integrated super-ellipsoidal-axicon lens made out stacked thin disks, mounted on printed circuit board (PCB) where broadband microstrip line terminated radial stub used excite S-shaped slot through which circular polarization achieved. Parameterized 3D Lamé curves describe optimal geometries horn profiles. features peak realized gain exceeding 13.1 dBi that beneficial variety applications, such as digital video broadcasting (DVB), remote sensing, weather monitoring, satellite communications, air traffic control. full-wave electromagnetic solver CST Studio Suite™, based locally conformal finite integration technique (FIT), was employed design characterize antenna. characteristics estimated by FIT were found be good agreement experimental measurements performed an prototype.