This paper presents an overview of the theory and main aspects involved in designing reliable printed circuit boards (PCB) for embedded systems to be used in space applications. To that end, the design and layout process of a satellite-oriented hardware architecture is described, along with an introductory text on PCB design theory, including high-speed signals, impedance control, and general good practices. As a case study, we present a board layout which follows the European Space Agency (ESA) design rules for printed circuit boards (ECSS-Q-ST-70-12C) with signal integrity analysis and a layered structure that mitigates electromagnetic interference effects. In this context, all components were selected to withstand wide temperature variation, the vacuum, and some even can tolerate radiation – as a microcontroller with ferroelectric program memory and a novel European radiation-hardened Field Programmable Gate Array (FPGA). Simulations results are presented in order to demonstrate the PCB signal integrity performance.

中文翻译：

---

针对空间应用的嵌入式系统的印刷电路板设计方法

本文概述了为空间应用中使用的嵌入式系统设计可靠的印刷电路板 (PCB) 所涉及的理论和主要方面。为此，本文介绍了面向卫星的硬件架构的设计和布局过程，以及有关 PCB 设计理论（包括高速信号、阻抗控制和一般良好实践）的介绍性文本。作为案例研究，我们展示了一种电路板布局，它遵循欧洲航天局 (ESA) 的印刷电路板设计规则 (ECSS-Q-ST-70-12C)，具有信号完整性分析和可减轻电磁干扰影响的分层结构。在这种情况下，所有组件都经过选择以承受广泛的温度变化、真空、有些甚至可以耐受辐射——作为具有铁电程序存储器和新型欧洲抗辐射现场可编程门阵列 (FPGA) 的微控制器。提供了仿真结果以证明 PCB 信号完整性性能。