Competition in the smart speaker industry is becoming increasingly fierce, and major manufacturers are competing to develop more powerful and convenient products. Today's smart speakers have rich func
"Electromagnetic Compatibility Design and Testing (4th Edition)" was written by Tim Williams, a famous British electromagnetic compatibility expert, and is divided into three parts. The first part (Ch
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I am working on a design for a competition recently. I need to connect to a controlled mobile phone through the PC, and then use the USB of the mobile phone to control the microcontroller car, so that
With the rapid growth of applications with higher data rates such as 5G, wireless systems are faced with the requirements of wider bandwidth and wider network coverage. Multi-antenna technologies, suc