【摘要】 本文以星载平面阵列多波束天线为研究对象,建立了平面阵的数学模型,并给出天线的阵列方向图。研究了通道响应失配对天线波束成形的影响并给出仿真结果。分析表明:波束成形对通道响应一致性有很高的要求,必须对多通道接收机进行幅相一致性的校正。在卫星通信对多波束天线的要求下给出了幅相误差的可容忍范围,并提出了误差校正指标。更多还原

【Abstract】 This paper discusses the satellite planar array multi-beam antenna and presents its model and array radiation pattern.The effects of channel mismatch on satellite planar array multi-beam antenna beamforming are investigated and some simulation results are also presented.Theoretic analysis and simulation results show that the beamforming has a high requirement on the phase-amplitude consistency,and the multi-channel receiver’s error must be proofread.The tolerable range of the phase-amplitude error under satellite communication has been given out and the emendation target has also been presented.更多还原