In a vehicle pop-up hood apparatus in which a rod is extended and a hood is pushed up by the operation of an actuator at a time of collision with a collision body, collision energy is absorbed with high efficiency when a collision load of a predetermined value or greater is input to an area near a hood pushed up position. The PLL is used to generate a local oscillator signal for a transceiver. The substrate has a first opening thereon and a second opening in the first opening.