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一、发挥点波束系统优势的关键技术目前,大吞吐量卫星系统的成功主要凭借了三大关键技术,通过这些技术可以充分利用点波束系统的内在优势。这三大技术是更大孔径、多波束馈送以及更强的卫星总线能力技术。本文主要介绍可用来支持大吞吐量卫星系统的更大孔径方面的技术需求。更大孔径是未来大吞吐量卫星系统实现更小点波束以及通过更小的赋形反射天线来提高性能的关键性赋能技术。更小点波束可以实现大容量频率复用策略,而且还能提高增益,可
First, the key to the advantages of point beam system At present, the success of large-capacity satellite systems rely mainly on the three key technologies that can make full use of the inherent advantages of point beam system. These three technologies are larger aperture, multi-beam feed and stronger satellite bus capabilities. This article focuses on the technical requirements for larger apertures that can be used to support high-throughput satellite systems. The larger aperture is a key enabling technology for smaller spot beams in future high-throughput satellite systems and improved performance with smaller shaped reflective antennas. Smaller spot beams can achieve high-capacity frequency reuse strategy, but also increase the gain can be