Broadband Circularly Polarized Microstrip Patch Antenna With Diamond-Shaped Artificial Ground Structure
This paper presents a broadband circularly polarized patch antenna with an artificial ground structure (AGS), which has rotated rectangular unit cells with respect to Circle Compact Mirror the sides of the rectangular ground plane, as a polarizer.A two-element ( $2 imes 1$ ) array configuration of the antenna is also presented.The rectangular unit