Beam Pointing Error Compensation Method of VICTS Antenna
In this paper,a compensation method is proposed to solve the beam pointing error of Variable Inclination Continuous Transverse Stub(VICTS)antenna.Firstly,the basic principle and composition of VICTS antenna are introduced,and the beam pointing model is established.Then the error sources are analyzed,including structural errors,the angle relationship between feed layer and radiating branch layer,and the relationship between beam pointing angle and the angle between feed layer and radiating branch layer is obtained through simulation.On this basis,the method of error compensation by quadratic curve fitting is proposed,and the satellite experiment is carried out.The experimental results show that this method can effectively reduce the beam pointing error and improve the performance of the communication system,and has high practicability.
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