| 摘要: |
| 为了满足星载有源相控阵系统的应用需求，给出了一种C频段多通道接收机的分析和设计过程。详细说明了电路设计和实现方法，重点讨论了影响幅度一致性和相位一致性的因素，并提出了多通道接收机的宽温稳定性和幅相一致性控制方法。实测结果表明，实现的C频段多通道接收机性能优良，宽温条件下幅度一致性优于±0.2 dB，相位一致性优于±5°,并通过星载鉴定试验。 |
| 关键词: 通信卫星 有源相控阵 C频段多通道接收机 数字波束形成 幅相一致性 |
| DOI： |
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| 基金项目: |
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| Design of a space-borne C-band multi-channel receiver |
| ZHANG Qi,XU Jin |
| () |
| Abstract: |
| To meet the requirement of a space-borne active phased array system,the analysis and design process of a C-band multi-channel receiver is presented.The design scheme and realization method are introduced in detail. The factors that influence the amplitude-phase consistency are discussed，then a method is proposed to control the performance of stability and consistency among its multiple channels in amplitude and phase. The C-band multi-channel receiver has shown prospective performance and passed the space environmental laboratory test. Its amplitude consistency is better than ±0.2 dB and phase consistency better than ±5°. |
| Key words: communication satellite active phase array C-band multi-channel receiver digital beam forming(DBF） amplitude-phase consistency |
