Why are satellite dishes shaped the way they are?

Satellite dishes are parabolic in shape to efficiently focus incoming satellite signals onto a single point, known as the feed horn, located at the dish's focal point. This design maximizes signal strength and quality by collecting and directing the signals from a broad area into the receiver. The curvature of the dish ensures that signals from satellites, which are positioned high above Earth, are captured effectively. Additionally, the parabolic shape minimizes interference and enhances overall performance.