DefinePK

Abstract

This paper presents the modeling and design of compact planar lens antenna element in X-band applications. The antenna element is realized by using aperture-coupled patches with simple and less fabrication complexity phase-control mechanism. The lumped-element parameters of the equivalent circuit model were determined analytically considering the physical structure of the unit cell at 8 GHz. The proposed lens antenna element achieves phase shift range of 205° with almost uniform transmission coefficient of better than -1 dB. The equivalent circuit theoretical simulations were validated with CST MWS simulations and a very good agreement was demonstrated.