A Differentially-Fed Dielectric-loaded Antenna with Sidelobe Reduction Based on SISL Platform

A differentially-fed dielectric-loaded antenna with sidelobe suppression performance based on Substrate-Integrated Suspend Line (SISL) platform is proposed. The patch worked at TM03 is differentially fed and set on G5. A piece of high dielectric is loaded below the patch and then the current distribution of the patch is affected. The sidelobe of the antenna is reduced and Side-Lobe Level (SLL) of -5.4 dB is achieved.