Antenna, vehicle radar, and vehicle equipped with same

A vehicle radar comprising:

• an antenna;
• an antenna drive unit for driving the antenna;
• a transmission unit for transmitting a transmission signal to the antenna;
• a reception unit for performing signal processing with respect to a reception signal received from the antenna;
• and
• a processor for calculating distance information or phase information of an object located near a vehicle based on the transmission signal and the reception signal,
• wherein the antenna comprises:
• a substrate;
• a first conductive patch disposed on a front surface of the substrate;
• a second conductive patch disposed on a rear surface of the substrate;
• first and second feeders electrically connected to the first conductive patch;
• a plurality of vias surrounding peripheries of the first and second conductive patches;
• a loop member disposed on the front surface of the substrate and surrounding the vias;
• and
• a third feeder electrically connected to the loop member,
• wherein the first conductive patch and the second conductive patch have a circular shape,
• wherein the first and second feeders penetrate between the front surface of the substrate and the rear surface of the substrate,
• wherein a first end of the first feeder is electrically connected to the first conductive patch and a second end of the first feeder is electrically isolated from the second conductive patch,
• wherein a first end of the second feeder is electrically connected to the first conductive patch and a second end of the second feeder is electrically isolated from the second conductive patch,
• wherein the second end of the first feeder and the second end of the second feeder are connected to first and second conductive members, respectively, and are configured to be applied with a first electrical signal and a second electrical signal, respectively, and
• wherein the second end of the first feeder, the second end of the second feeder, the second conductive patch and the plurality of vias surrounding the second conductive patch are formed on the rear surface of the substrate, and the loop member is absent from the rear surface of the substrate.

A vehicle comprising:

• a plurality of cameras;
• a radar;
• and
• a processor for performing control to autonomously drive the vehicle based on images from the plurality of cameras and distance information or phase information from the radar in an autonomous mode,
• wherein the radar comprises an antenna comprising a substrate, a first conductive patch disposed on a front surface of the substrate, a second conductive patch disposed on a rear surface of the substrate, first and second feeders electrically connected to the first conductive patch, a plurality of vias surrounding peripheries of the first and second conductive patches, a loop member disposed on the front surface of the substrate and surrounding the vias, and a third feeder electrically connected to the loop member,
• wherein the first conductive patch and the second conductive patch have a circular shape,
• wherein the first and second feeders penetrate between the front surface of the substrate and the rear surface of the substrate,
• wherein a first end of the first feeder is electrically connected to the first conductive patch and a second end of the first feeder is electrically isolated from the second conductive patch,
• wherein a first end of the second feeder is electrically connected to the first conductive patch and a second end of the second feeder is electrically isolated from the second conductive patch,
• wherein the second end of the first feeder and the second end of the second feeder are connected to first and second conductive members, respectively, and are configured to be applied with a first electrical signal and a second electrical signal, respectively, and
• wherein the second end of the first feeder, the second end of the second feeder, the second conductive patch and the plurality of vias surrounding the second conductive patch are formed on the rear surface of the substrate, and the loop member is absent from the rear surface of the substrate.