Microstrip is like a teeny tiny little road that goes on a piece of paper or a circuit board. It's really thin and flat, like a strip of tape. We use it to send tiny electrical signals from one place to another. Just like how you might use a toy car to travel on a road from one end to another, the electrical signals travel on the microstrip. It's important to make sure the microstrip is designed just right so that the signals don't get lost or mixed up with other signals on the way. But if we make it all work properly, we can use microstrip to make amazing technology like smartphones and computers!