In the past few decades, the transformation of printed circuit boards has been remarkable, with increased miniaturization and the introduction of copper pours to improve signal integrity, especially in high-speed electronics like smartphones and desktop computers. The incorporation of copper pours also helps reduce RF emissions, a common requirement for devices due to FCC regulations. Hobbyists now tend to follow industry trends in PCB aesthetics and often avoid designs that are considered unusual or outdated. Understanding the physics behind inductance and reactance on PCBs is essential for effective design, especially when working with high-speed interfaces like MIPI-DSI and USB 3.0.
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