Horn antenna with suppressed sidelobe level

Abstract

A method whereby the sidelobe level of the radiation pattern of a horn antenna can be reduced is proposed. The sidelobes are reduced by curving the edges in the aperture of the antenna. Radiation patterns of regular and modified horns were calculated with GTD and compared with measured results.

Fast Sidelobe Calculation for Planar Phased Arrays Using an Iterative Sidelobe Seeking Method

“…In the design of a phased array, a lower sidelobe level (SLL) means less power loss and signal interference from undesired directions [4,5]. As a result, sidelobe calculation is applied in many problems of phased array design [6][7][8][9][10][11][12][13][14][15][16]. A number of optimization problems [6][7][8][9][10][11] take SLL calculation as the cost function directly, while others employ SLL calculation as the criterion of the scanning performance [12][13][14]17].…”

A compact ultra‐wideband transverse electromagnetic mode horn antenna for high power microwave applications

“…11 The horn antenna is reported in 6 for electromagnetic compatibility measurement and broadband communication systems. A horn antenna with curve or bend edges in the aperture is reported in, 12 which reduces side lobs and provides a directive radiation pattern. Another method to minimize the sidelobe of an antenna is by modifying E-field distribution in the aperture side of the antenna.…”