RADAR PATCH ANTENNA WITH SMALL SIZE

摘要

PURPOSE: A radar patch antenna with a small size is provided to reduce the whole size of an antenna and reducing manufacturing costs by forming an antenna with a single substrate. CONSTITUTION: In a radar patch antenna with a small size, a patch radiator(202) is formed on a substrate(200). A first ground(204) is electrically separated from the patch radiator. A feed line(206) provides a power feed signal to the patch radiator. The feed line is electro-magnetically combined with a feeding point. A virtual ground element(208) provides a ground potential to a second ground(210).