In the field of target detection such as small satellites and automobile collision avoidance radars

the performance of the transceiver antenna will directly affect the success rate of target detection. Aiming at the design requirements of Ku-band low sidelobe antennas

the feeder width gradient and series subarray patch width gradient methods in the feed network are used to control the current amplitude distribution

and the Taylor weighted low sidelobe array antenna design is completed. Simulation and test results show that the antenna gain is 21. 1 d Bi and the sidelobe level is less than-16 d B

which all meet the design requirements

and the design scheme can be effectively applied to related fields.