Uniplanar Series Fed Antenna Array with Asymmetrical Slots for K-band Applications

摘要

Compact, printed slot antenna array with series feeding for K-band applications is investigated. A CPW T-junction is employed to feed the antenna consisting of 2 x 8 identical slots of rectangular shape that are positioned asymmetrically relative to the CPW feeding line. The proposed asymmetrical slots offer greater flexibility in antenna design which results in a wide operating bandwidth, maximum 17.6 dBi gain and moderate side lobe suppression. The feed simplicity and planar configuration of slot array, intended for frequency range 24.25-27.5 GHz, makes it attractive for radar sensors and high capacity 5G technology applications.