Miniaturization is an important research direction in modern electronic communication system, and the design of RF channel emphasizes the miniaturization design of frequency synthesizer.

小型化是现代电子通信系统的一个重要的研究方向，射频信道的小型化设计重点是频率综合器的小型化设计。

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The enormous complexity of design, particularly of manned spacecraft with their millions of components, requires a high degree of miniaturization and reliability.

设计的高度复杂性，尤其是有人驾驶的有数百万组件构成的航天器，要求高度的小型化和可靠性。

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Therefore, it is necessary to raise the number of systems, intelligence, miniaturization, multi-functional design.

因此，有必要提出系统的数字化、智能化、微型化、 多功能化的设计。

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