опыт работы с мобильным радиочастотным устройством PCB и монтажом
2021-09-15
With the advent of a round of Bluetooth devices, cellular phones and 3G and 4G era, engineers pay more and more attention to the design skills of RF circuits. Radio frequency (RF) circuit board design is often described as a "black art" because there are still many uncertainties in theory.
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