Design of a Novel Compact and Superdirective Two and Three Elements Antenna Array

In this paper, a novel superdirective and compact two and three elements antenna arrays is proposed. These antenna array consists on a capacitively loaded loop (CLL) placed in the near field of a monopole. This elementary antenna is then used in two other configurations with two and three element compact parasitic arrays to obtain a higher directivity. The dimensions of elements arrays are identical. However, only one of them is fed whereas the other (one or two) is used as a parasitic element. The design of the basic structure and the antenna arrays as well as the simulation results in terms of impedance mismatch and radiation patterns are reported and discussed.