Abstract: Example radar apparatus and mobile platforms are described. One example radar apparatus includes a housing, an antenna board, and a connector. The antenna board is disposed in the housing. The antenna board has a first board surface and a second board surface that are disposed opposite each other. The first board surface is used to receive and transmit signals. The connector is disposed in the housing, and is configured to connect to another component outside the housing. The connector has an electrical connection structure. The electrical connection structure is electrically connected to the antenna board, and the electrical connection structure is located on a side of the second board surface.