Abstract: A radar apparatus is provided in which an antenna axis and vehicle axis can agree with each other even when the antenna face is covered with a cover. In an assembling process of the radar apparatus composed of a chassis, an antenna incorporated in the chassis and a cover attached to the chassis to cover the antenna, a correlative positional relation between an antenna axis of the antenna incorporated into the chassis and one portion of the chassis or bracket is detected, and the thus detected data is inscribed on a seal and the seal is stuck to the chassis or the data is stored in an internal memory, and the chassis into which the antenna is incorporated is covered with the cover, so that the radar apparatus is manufactured. When this radar apparatus is attached to a vehicle, the antenna axis can be adjusted parallel to the vehicle axis by utilizing data of a correlative positional relation between the antenna and one portion of the chassis or bracket.

Abstract: A radar apparatus is provided in which an antenna axis and vehicle axis can agree with each other even when the antenna face is covered with a cover. In an assembling process of the radar apparatus composed of a chassis, an antenna incorporated in the chassis and a cover attached to the chassis to cover the antenna, a correlative positional relation between an antenna axis of the antenna incorporated into the chassis and one portion of the chassis or bracket is detected, and the thus detected data is inscribed on a seal and the seal is stuck to the chassis or the data is stored in an internal memory, and the chassis into which the antenna is incorporated is covered with the cover, so that the radar apparatus is manufactured. When this radar apparatus is attached to a vehicle, the antenna axis can be adjusted parallel to the vehicle axis by utilizing data of a correlative positional relation between the antenna and one portion of the chassis or bracket.

Abstract: By mounting electronic circuit components using a microstrip line, transmission loss and variation in performance are reduced. At least one projection of substantially uniform height is provided on each of four side surfaces of the components. The components are disposed on the chassis by bringing their projections into contact with adjacent circuit components. A heat-resistant film or a heat-resistant tape is adhered to one or both side surfaces of adjacent side surfaces of the components, to dispose the components in contact with each other. A component-mounting nozzle is used to adsorb the components, and position them on the chassis in contact with a guide fitted on the chassis or in the vicinity of the chassis. It is also possible to position the components with actuators located around the chassis, after the components are provisionally disposed on the chassis with the component-mounting nozzle.