Key unit and vehicle having key unit

A key unit configured to authenticate a portable terminal based on information acquired from the portable terminal and control locking and unlocking of a target by transmitting a signal to a locking and unlocking device, the key unit comprising:

• a first communication unit configured to receive a request signal transmitted in a first frequency band from the locking and unlocking device;
• a controller configured to authenticate the portable terminal and process signals transmitted to and received from the locking and unlocking device;
• a second communication unit configured to perform short-range wireless communication with the portable terminal in a second frequency band;
• and
• a substrate on which the first communication unit, the controller, and the second communication unit are mounted,
• wherein the first communication unit and the second communication unit are mounted at positions on the substrate such that a straight line connecting a center point of the first communication unit and a center point of the second communication unit passes through at least part of the controller.