Capacitively loaded loop (CLL) structure for pattern reconfigurability applications in printed dipole antenna

The design and realization of a pattern reconfigurable printed dipole antenna loaded with capacitively loaded loop (CLL) structure with high gain compared to a standalone printed dipole is proposed in this paper. The proposed antenna consists of a dipole printed on a dielectric substrate and CLL structures are loaded on either sides of the dipole antenna at an electrically small distance, which acts like a reflector in H-plane. By controlling the CLL structure using switches at CLL gaps in one side, we can control the effective presence/absence of these reflectors, which in turn is used to tune the pattern. Further to increase the resolution of pattern reconfigurability additional CLL structures are loaded radially around the dipole antenna. Proposed antenna isdesigned and simulated in HFSS 15. Obtained Radiation pattern characterization confirms the pattern reconfigurability. The antenna is currently under fabrication. Measured results will be presented in the conference.