Planar 64 element millimetre wave antenna

A simple 64 element planar array antenna, with H-plane sidelobes below -35 dB at larger angles than 19/spl deg/ from boresight and a gain above 30.4 dBi, is presented for the band 37.0-39.5 GHz. The radiating elements are fed in parallel by a waveguide feed network. The H-plane sidelobe level is reduced by using a combination of arrays, the zero in the element radiation pattern, and amplitude tape...