Answer Posted / Mohammad Ajmal

Creating a small radar involves several components such as antenna arrays, transceiver module, microcontroller, and a power source. However, building a functional small radar can be quite complex and requires a good understanding of electronics, radio frequency (RF) engineering, and signal processing. A simpler alternative could be to use a Raspberry Pi or Arduino board along with suitable sensors and libraries for ultrasonic or infrared distance measurement, which can simulate some radar-like functionality but won't be a true radar.

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