Polar modulation

Polar modulation is like playing catch with your friend. When your friend throws the ball to you, he can throw it really hard or really soft, depending on how far away you are. If you're really close, he can just toss it easily, but if you're far away, he has to throw it harder to get it to you.

Polar modulation works the same way, but instead of a ball, there's a signal that gets sent from one device to another. The signal can have different strengths, like how hard or soft your friend throws the ball. The strength of the signal depends on how far away the devices are from each other.

So, imagine two devices that need to communicate with each other. One device sends a signal to the other, but the strength of the signal changes depending on how far away they are from each other. This is where polar modulation comes in - it helps the strength of the signal match the distance between the devices.

In other words, polar modulation is like adjusting the volume on your TV, but for signals that get sent over the airwaves. It makes sure that the signal isn't too weak or too strong, but just right, so that both devices can communicate clearly.