Antenna radiation enhancement by increasing main to side lobe ratio

A novel technique for increasing the main lobe level and reducing the side lobes of monopoles, aperture and reflector antennas over ground planes is p roposed. The technique employs a compensating loop which is physically clos e and parallel to each diffracting edge, and is arranged to have the revers e current distribution of the edge. It is anticipated that with proper opti mization of the various design parameters, the improvement in the main to f irst side lobe ratio will exceed the recently observed experimental value o f about 7 dB.