Radar device

1. A radar device configured to detect a target in front by using an antenna configured to transmit and receive a radar signal, comprising:

a housing having an upper side formed with an aperture to which a radome is coupled;

a radar package disposed inside the housing and comprising the antenna, a signal processor, and a target information calculator; and

a circuit board mounted with the radar package and a power block,

wherein the antenna, the signal processor, and the target information calculator of the radar package are mounted on the same surface of the circuit board facing the radome,

wherein the upper side of the housing includes a recess having an upper surface in which the aperture is formed,

wherein the radome is disposed on the upper surface of the recess, and the circuit board is disposed on an opposite side of the recess, and

wherein a side wall of the housing formed by the recess covers an outermost side surface of the radome.

2. The radar device of claim 1 , wherein the antenna comprises

a plurality of transmitter groups and a plurality of receiver groups,

wherein the plurality of transmitter groups and the plurality of receiver groups are each arranged to be spaced apart from one another at predetermined intervals.

3. The radar device of claim 1 , wherein the antenna comprises

a plurality of transmitter groups and a plurality of receiver groups,

wherein the plurality of transmitter groups are arranged at predetermined intervals in a first direction, and the plurality of receiver groups are arranged at predetermined intervals in a second direction perpendicular to the first direction.

4. The radar device of claim 1 , wherein the circuit board has one surface that is mounted with the radar package and made of a material having a lower permittivity than an opposite surface of the circuit board.

5. A vehicle comprising:

a plurality of radar devices each of which is configured to detect a target in front by using an antenna configured to transmit and receive a radar signal, wherein each of the radar devices comprises:

a housing having an upper side formed with an aperture to which a radome is coupled;

a radar package disposed inside the housing and comprising the antenna, a signal processor, and a target information calculator;

a circuit board mounted with the radar package and a power block; and

a plurality of radomes comprising multiples of the radome disposed to face outwardly and disposed in a front and a rear of the vehicle,

wherein the upper side of the housing includes a recess having an upper surface in which the aperture is formed,

wherein the radome is disposed on the upper surface of the recess, and the circuit board is disposed on an opposite side of the recess,

wherein among the plurality of radar devices, each of radar devices disposed in the front of the vehicle and spaced from a central axis of the vehicle is inclined at angle from the central axis of the vehicle, and

wherein a side wall of the housing formed by the recess covers an outermost side surface of the radome.

6. The vehicle of claim 5 , wherein the plurality of radar devices disposed in the front and the rear of the vehicle has a radar device that is disposed farthest from the central axis of the vehicle and inclined at a largest angle from the central axis of the vehicle, among the plurality of radar devices disposed in the front and the rear of the vehicle.

7. The vehicle of claim 5 , wherein the plurality of radar devices comprises

radar devices that are inclined at increased angles from the central axis of the vehicle in proportion to distances of the radar devices from the central axis.

8. The vehicle of claim 5 , wherein the plurality of radar devices disposed in the front and the rear of the vehicle have a field of view (FOV) of 250 degrees or more.

9. A vehicle mounted with a plurality of radar devices comprising multiples of the radar device as claimed in claim 2 , the vehicle comprising

a plurality of radomes comprising multiples of the radome disposed to face outwardly and disposed in a front and a rear of the vehicle.

10. A vehicle mounted with a plurality of radar devices comprising multiples of the radar device as claimed in claim 3 , the vehicle comprising

a plurality of radomes comprising multiples of the radome disposed to face outwardly and disposed in a front and a rear of the vehicle.

11. A vehicle mounted with a plurality of radar devices comprising multiples of the radar device as claimed in claim 4 , the vehicle comprising

a plurality of radomes comprising multiples of the radome disposed to face outwardly and disposed in a front and a rear of the vehicle.

12. A vehicle comprising:

a plurality of radar devices each of which is configured to detect a target in front by using an antenna configured to transmit and receive a radar signal, wherein each of the radar devices comprises:

a housing having an upper side formed with an aperture to which a radome is coupled;

a radar package disposed inside the housing and comprising the antenna, a signal processor, and a target information calculator;

a circuit board mounted with the radar package and a power block; and

a plurality of radomes comprising multiples of the radome disposed to face outwardly and disposed in a front and a rear of the vehicle,

wherein the upper side of the housing includes a recess having an upper surface in which the aperture is formed,

wherein the radome is disposed on the upper surface of the recess, and the circuit board is disposed on an opposite side of the recess, and

wherein a side wall of the housing formed by the recess covers an outermost side surface of the radome.