Receiver design refers to the process of creating devices that can capture and interpret signals, such as radio waves or digital data. These devices, often called receivers, are essential in communication systems, allowing users to receive information transmitted over various media. Key components include antennas, amplifiers, and demodulators, which work together to ensure clear signal reception. In designing a receiver, engineers must consider factors like frequency range, sensitivity, and selectivity. Frequency range determines the types of signals the receiver can process, while sensitivity affects its ability to detect weak signals. Selectivity ensures that the receiver can distinguish between closely spaced frequencies, minimizing interference from unwanted signals.