Sidelobe level reduction in uniformly-fed E-plane coupled horn antenna array

In this paper we deal with uniformly-fed E-plane coupled horn array antenna. We find a configuration to have a maximum gain, and a configuration to achieve sidelobe reduction. A combination of space taper, beamwidth taper and squint taper is applied. We present array geometries with 1-4 elements, and it is shown that sidelobe reduction of approximately 10 dB´s can be obtained, while maintaining a reasonable value for the gain.