Beam steerable IR-UWB antenna array with FCC-compliant impulse generators

摘要

A novel method for beam steering with an active ultra-wideband antenna array is presented for impulse-radio ultra-wideband. The antenna array consists of four planar Vivaldi antennas in a collinear arrangement with an impulse generator circuit mounted chip-onboard on each antenna element. The beam steering is done by shifting the phase of the control signals triggering the impulse generators. In the array arrangement a measured beamwidth of 16u000b0; is achieved for an antenna spacing of 4 cm compared to 80u000b0; for a single Vivaldi antenna. Beam steering is experimentally demonstrated for a steering angle of 30u000b0;.