KR20170056219A - Patch array antenna and apparatus for transmitting and receiving radar signal with patch array antenna - Google Patents

Abstract

The present invention relates to a patch array antenna and a radar signal transmitting and receiving apparatus having the same. The present invention proposes a patch array antenna for realizing digital beamforming for simultaneously measuring an azimuth angle and an elevation angle, and a radar signal transmitting and receiving apparatus having the same. An antenna according to the present invention includes a patch group including patches positioned on the same plane to generate a predetermined radiation pattern; and a feed line group including first feed lines connecting patches arranged in one direction among the patches and second feed lines connecting patches arranged in the other direction among the patches.

Description

[0001] The present invention relates to a patch array antenna and a radar signal transmitting and receiving apparatus having the patch array antenna.

The present invention relates to a patch array antenna and a radar signal transmitting and receiving apparatus having the patch array antenna. And more particularly, to a patch array antenna usable in the millimeter band and a radar signal transmitting and receiving apparatus having the patch array antenna.

In recent years, research has been accelerated on detection systems that detect the surroundings of a vehicle for the safety and convenience of the driver. The vehicle detection system detects objects in the vicinity of the vehicle to prevent collision with objects not recognized by the driver, and is used for various purposes such as detecting an empty space and performing automatic parking. Data is provided.

In recent years, there has been a growing interest in sensing using radars with better detection performance than infrared sensors and ultrasonic sensors, and many vehicles use radar for more accurate detection.

The radar emits a beam, uses the reflected signal to sense the surroundings, and is capable of scanning at a fine angle, allowing accurate detection of surrounding objects. The radar has an array antenna for this purpose.

However, the conventional array antenna can perform digital beamforming (DBF) only in a direction in which a plurality of antennas are arranged, and accordingly, there is a problem that a receiving antenna for azimuth angle DBF and a receiving antenna for high angle DBF must be separately provided.

Korean Patent Laid-Open Publication No. 2013-0105949 proposes a patch array antenna. However, since the antenna can perform digital beamforming only in the direction in which the antenna is arranged, the above problem can not be solved.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a patch array antenna for realizing digital beamforming for simultaneously measuring an azimuth angle and an elevation angle and a radar signal transmitting and receiving apparatus having the same.

However, the objects of the present invention are not limited to those mentioned above, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a patch group including patches positioned on the same plane to generate a predetermined radiation pattern. And a feed line group including first feed lines connecting patches arranged in one direction among the patches and second feed lines connecting patches arranged in the other direction among the patches. I suggest.

Preferably, at least some of the patches are included in a first patch group including the patches arranged in the one direction and a second patch group including the patches arranged in the other direction.

Preferably, the patch group includes the first patch group constituting at least one column and the second patch group constituting at least one row.

Preferably, the patches are tiled.

Preferably, the patch group includes the first patch group forming a first distance between adjacent patches, and the second patch group forming a second distance between patches adjacent to the first patch group.

Preferably, the first distance between the patches included in the first patch group is different from the second distance between the second patch groups.

Preferably, the first feeder lines interconnect adjacent patches among the patches arranged in the one direction, and the second feeder lines interconnect adjacent patches among the patches arranged in the other direction.

Advantageously, the patch array antenna comprises: a first receiving module for obtaining first signals for obtaining first information on a target using the patches and the first feeder lines; And a second receiving module for obtaining second signals for obtaining second information on the target using the patches and the second feeder lines.

Preferably, the first receiving module obtains the x-axis direction information of the target with the first information, and the second receiving module obtains the y-axis direction information of the target with the second information.

Preferably, the first feed lines are longer than the second feed lines.

Preferably, the patch array antenna is mounted on a vehicle and used when transmitting and receiving a radar signal.

Advantageously, at least one patch included in the patch group is connected to at least one first feeder line and at least one second feeder line.

Preferably, the first feeder line is orthogonal to the second feeder line.

Preferably, the patch array antenna further includes a structure disposed between the first feeder line and the second feeder line, the first feeder line being connected to one of the patches included in the patch group.

Preferably, the structure includes a via hole electrically connected to a ground plane of the dielectric substrate.

Preferably, the structure is formed in the form of a copper foil on the dielectric substrate of the patch array antenna using etching.

Preferably, the first patch is connected to the second patch and the third patch through the second a feed line, which is any one of the first feed lines and the second feed lines, Wherein the patch array antenna is connected to the second patch and the third patch through a first b feeder line which is another one of the first feeder lines and a second b feeder line which is another one of the second feeder lines, And a structure formed in a space surrounded by the first patch, the second patch, the third patch, and the fourth patch.

The first feeder line or the second feeder line connected to the patch located at least at one end in the first patch group or the second patch group is wider than the first feeder line or the second feeder line connected to the patch not positioned at the one end .

According to another aspect of the present invention, there is provided a radar system including: a radar signal generator for generating a radar signal; And a patch group for outputting the radar signal to the outside and receiving the radar signal reflected and returned, the patch group including patches positioned on the same plane to generate a predetermined radiation pattern, And a patch array antenna including a first feeder line connecting patches and a second feeder line including patches arranged in the other direction among the patches, and a patch array antenna including a feeder line group .

Preferably, the radar signal transmitting / receiving device acquires information on the x-axis direction of the target using the patches and the first feeder lines, acquires y-axis direction information of the target using the patches and the second feeder lines And the x-axis direction information of the target and the y-axis direction information of the target are used to generate the three-dimensional position information of the target.

Preferably, the radar signal transmitting / receiving device is mounted on a vehicle.

The present invention can achieve the following effects through the above-described configurations.

First, by designing the radiating element to operate in a shared fashion, it is possible to implement a digital beamforming for simultaneously measuring azimuth and elevation angles in one antenna.

Secondly, since it is not necessary to separately provide a receiving antenna for the azimuth DBF and a receiving antenna for the DBF for the high-angle DBF, it is possible to reduce the volume of the transmitting and receiving apparatus and reduce the cost.

1 is a plan view of a patch array antenna according to an embodiment of the present invention.
2 is a perspective view of a patch array antenna according to an embodiment of the present invention.
3 is a reference view for explaining a position of a feed port in a patch array antenna according to an embodiment of the present invention.
FIGS. 4 and 5 are reference views for explaining antenna characteristics when a patch array antenna according to an embodiment of the present invention is powered only at port 3.
FIG. 6 and FIG. 7 are reference views for explaining antenna characteristics when power is supplied only to port 9 in a patch array antenna according to an embodiment of the present invention.
FIG. 8 is a diagram illustrating the azimuth angle and the DBF composite beam pattern for each receiving channel.
9 is a plan view of a patch array antenna according to another embodiment of the present invention.
10 is a partially enlarged view of a patch array antenna according to another embodiment of the present invention.
11 is a plan view of a patch array antenna according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In addition, the preferred embodiments of the present invention will be described below, but it is needless to say that the technical idea of the present invention is not limited thereto and can be variously modified by those skilled in the art.

The present invention relates to a receiving array antenna structure for simultaneous azimuth and elevation estimation of a radar for a vehicle.

1 is a plan view of a patch array antenna according to an embodiment of the present invention.

The patch array antenna 100 is an array antenna capable of implementing digital beamforming for estimating not only a horizontal target of a radar (e.g., a vehicle radar) but also an angle of a vertical target. In this case, the antennas in the horizontal and vertical directions share the opening surfaces, so that no increase in size occurs.

Hereinafter, a more detailed description will be given with reference to the drawings.

1, the patch array antenna 100 includes a patch group and a feeder group.

The patch group includes patches 110 located on the same plane of the dielectric substrate 140. The patch 110 is to generate a predetermined radiation pattern.

The first patch group 111 is formed by at least a part of patches constituting a patch group, and may be formed by a predetermined number of patches arranged in one direction.

The first patch group 111 may constitute at least one column.

The first patch group 111 can form a first distance between adjacent patches.

The second patch group 112 is formed by at least a part of the patches constituting the patch group, and may be formed by a predetermined number of patches arranged in the other direction.

The second patch group 112 may constitute at least one row.

The second patch group 112 may form a second distance between adjacent patches. In this embodiment, the first distance between the patches included in the first patch group 111 and the second distance between the patches included in the second patch group 112 are different from each other. For example, the first distance between the patches included in the first patch group 111 may be greater than the second distance between the patches included in the second patch group 112. In this embodiment, it is also possible that the first distance between the patches included in the first patch group 111 and the second distance between the patches included in the second patch group 112 have the same value.

At least some of the patches constituting the patch group may be included in the first patch group 111 and the second patch group 112 at the same time. For example, this corresponds to a patch 113 in FIG.

The patches constituting the patch group can be arranged in a tile as shown in FIG.

The patches included in the patch group all have the same size. However, the present embodiment is not limited to this, and it is also possible to constitute a patch group with patches having different sizes.

The patches included in the patch group may be implemented in a square shape. However, the present embodiment is not limited thereto, and the shape of the patches may be circular, rectangular, polygonal, or the like.

The feeder group includes first feeders 121 and second feeders 122.

The first feeder lines 121 connect the patches included in the first patch group 111 among the patches included in the patch group. The second feeder lines 122 connect the patches included in the second patch group 112 among the patches included in the patch group.

The first feeder lines 121 can connect adjacent patches among the patches included in the first patch group 111 to each other. The second feeder lines 122 may connect adjacent patches among the patches included in the second patch group 112. [

The first feeder lines 121 are formed to have a first length value and the second feeder lines 122 are formed to have a second length value. In this case, the first length value may be formed to be larger than the second length value, but the present invention is not limited to this, and the first length value and the second length value may be formed to be the same.

The patch array antenna 100 may include a first receiving module 131 and a second receiving module 132.

The first receiving module 131 receives the first information about the target using the patches included in the patch group (e.g., the first patch group 111 and the second patch group 112) and the first feeder lines 121, Lt; RTI ID = 0.0 > 1 < / RTI >

The first receiving module 131 may obtain the x-axis direction information of the target as the first information on the target. The first receiving module 131 may acquire the azimuth information as x-axis direction information of the target.

The second receiving module 132 receives the second information on the target using the patches included in the patch group (e.g., the first patch group 111 and the second patch group 112) and the second feeder lines 122, To obtain second signals to obtain the second signals.

The second receiving module 132 may obtain the y-axis direction information of the target with the second information on the target. The second receiving module 132 may obtain the elevation information with the y-axis direction information of the target.

In the present embodiment, considering the fact that the first receiving module 131 obtains the azimuth information of the target and the second receiving module 132 obtains the high angle information of the target, the first feeder lines 121 are connected to the second feeder line 122). ≪ / RTI >

In the present embodiment, the first receiving module 131 may be implemented as two modules 131a and 131b in consideration of the receiving performance of the antenna. However, the present embodiment is not limited thereto.

The patch array antenna 100 is designed so that the constituent radiating elements of the respective arrays are operated in a superimposed manner in order to realize a receiving antenna for the azimuth DBF and a receiving antenna for the DBF for the high angle by using a single type of antenna. The patch array antenna 100 needs a space for the RF Rx chips 131 and 132 but the size of the antenna is reduced as compared with the case where the reception antenna for the azimuth DBF and the antenna for the high DBF are separately provided You can. In designing the patch array antenna 100, the following points need to be considered.

① Performance deterioration due to mutual interference between azimuth and elevation array antennas (Isolation and distortion of radiation pattern).

② Reduction of system gain due to use of azimuth and elevation orthogonal polarization.

2 is a perspective view of a patch array antenna according to an embodiment of the present invention.

The structure of the patch array antenna 100 shown in Fig. 2 shows an embodiment of the proposed concept. Assuming that a plurality of antennas are uniformly arranged in a specific direction, a plurality of antennas are evenly arranged in a direction orthogonal to the array direction, and each unit radiating element overlaps and is shared with each other, but operates independently.

There is no change in the size of the antenna opening surface due to the addition of the orthogonal array in the patch array antenna 100 according to the present invention. In addition, it is possible to estimate the target angle not only in the azimuth direction but also in the elevation direction with the orthogonal arrangement of the antennas.

Next, the radiation pattern of the patch array antenna 100 according to the present invention will be described.

3 is a reference view for explaining a position of a feed port in a patch array antenna according to an embodiment of the present invention.

In FIG. 3 (a), reference numeral 210 denotes a third port. Port 3 is to acquire information for azimuth estimation of the target.

In FIG. 3 (b), reference numeral 220 denotes the 9th port. Port 9 is to acquire information for the altitude estimation of the target.

FIGS. 4 and 5 are reference views for explaining antenna characteristics when a patch array antenna according to an embodiment of the present invention is powered only at port 3.

4 (a) shows the color value of the gain of the Theta component.

4 (b) shows the simulation result of the patch array antenna 100 when the power is supplied to only the port 3, and the Theta component is represented by a 3D radiation pattern.

4 (c) is a graph showing a radiation pattern in azimuth direction. 4C is a two-dimensional representation of the radiation pattern 310 of the Theta component and the radiation pattern 320 of the Phi component as a result of the HFSS (High Frequency Structural Simulator). The curve information (Curve info) of the radiation pattern 310 of the Theta component and the radiation pattern 320 of the Phi component is as follows.

310: dB (Gain Theta), Freq = 76.5 GHz, Theta = 90 deg

320: dB (Gain Phi), Freq = 76.5 GHz, Theta = 90 deg

FIG. 5 (a) shows the color value of each component of the gain Phi.

5B shows the simulation result of the patch array antenna 100 when the power is supplied to only the port 3, and the Phi component is represented by a 3D radiation pattern.

5 (c) is a graph showing a radiation pattern in the elevation direction. 5C is a two-dimensional representation of the radiation pattern 330 of the Theta component and the radiation pattern 340 of the Phi component as a result of the HFSS (High Frequency Structural Simulator). The curve information (Curve info) of the radiation pattern 330 of the Theta component and the radiation pattern 340 of the Phi component is as follows.

330: dB (Gain Theta), Freq = 76.5 GHz, Phi = 0 deg

340: dB (Gain Phi), Freq = 76.5 GHz, Phi = 0 deg

FIG. 6 and FIG. 7 are reference views for explaining antenna characteristics when power is supplied only to port 9 in a patch array antenna according to an embodiment of the present invention.

6 (a) shows the color value of the gain of the Theta component.

6 (b) shows a simulation result of the patch array antenna 100 when the power is supplied to port 9 only. Theta component is represented by a 3D radiation pattern.

6 (c) is a graph showing a radiation pattern in azimuth direction. 6C is a two-dimensional representation of the radiation pattern 350 of the Phi component and the radiation pattern 360 of the Theta component as a result of the HFSS (High Frequency Structural Simulator). The curve information (Curve info) of the radiation pattern 350 of the Phi component and the radiation pattern 360 of the Theta component is as follows.

350: dB (Gain Phi), Freq = 76.5 GHz, Theta = 90 deg

360: dB (Gain Theta), Freq = 76.5 GHz, Theta = 90 deg

7 (a) shows the color value of the gain Phi component.

FIG. 7 (b) shows the simulation result of the patch array antenna 100 when power is supplied to the port 9 only, and the Phi component is represented by a 3D radiation pattern.

7 (c) is a graph showing a radiation pattern in the elevation direction. 7C is a two-dimensional representation of the radiation pattern 370 of the Phi component and the radiation pattern 380 of the Theta component as a result of the HFSS (High Frequency Structural Simulator). The curve information (Curve info) of the radiation pattern 370 of the Phi component and the radiation pattern 380 of the Theta component is as follows.

370: dB (Gain Phi), Freq = 76.5 GHz, Phi = 0 deg

380: dB (Gain Theta), Freq = 76.5 GHz, Phi = 0 deg

FIG. 8 is a view showing the DBF composite beam pattern (steering) according to the azimuth and elevation of the reception channel. 8 (a) to 8 (d) show the color values of the components of the gain.

The right diagram in FIG. 8 (a) shows the Theta component in a three-dimensional radiation pattern (E-theta), and only azimuth receiving antennas are synthesized.

The right diagram in FIG. 8 (b) shows the Theta component in a three-dimensional radiation pattern, and only the azimuth receiving antenna is synthesized.

The right side of FIG. 8 (c) shows the Phi component in a three-dimensional radiation pattern (3D radiation pattern (E-phi)).

The right side of FIG. 8 (d) shows the Phi component in a three-dimensional radiation pattern, synthesizing only the high-angle receiving antenna.

8 (a) to 8 (d) show composite beam patterns of antennas using ports 1 to 12 as a whole. 8 (a) and 8 (b) show an example of an embodiment in which the composite beam pattern is steered in the azimuth direction when the DBF is made using only the antenna in the horizontal direction, and Figs. 8 (c) Direction and the synthetic beam pattern is steered in the elevation direction when the DBF is performed using only the antenna in the direction of the antenna.

The present invention effectively shows an example of an arrangement structure and an array antenna having an advantage that a beam pattern can be steered in an azimuth angle and an elevation angle direction without increasing the aperture size of the antenna, and the 3D coordinates of the target can be estimated.

The patch array antenna 100 described above can be used when transmitting and receiving a radar signal mounted on a vehicle.

In the present invention described above, by configuring the patch array antenna 100 such that the radiating elements for azimuth estimation and the radiating elements for high angle estimation are shared by overlapping use of the antenna radiating elements, an azimuth angle and an elevation angle Directional beam pattern. According to the present invention, it is easy to miniaturize the antenna size and the beam pattern steering according to the feed port is excellent.

The present invention described above can be applied to a 77 GHz Long Range forward radar system.

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention has been described with reference to Figs. The effects of the present invention will be described as follows.

First, the proposed antenna array configuration and array antenna can be estimated by constructing the DBF without increasing the azimuth angle target as well as the azimuth angle when applied to the vehicle radar. This is effective for multi-function implementation of radar system because it can distinguish target such as manhole lid, traffic lights and so on by estimating the elevation angle of the frontal target of the vehicle radar.

Second, a plurality of antennas may be arranged orthogonally to each other on a single substrate. Also, it is easy to manufacture through general PCB process.

Third, even when the array structure for estimating the elevation angle is added, the opening area of the antenna does not increase, and the effect of reducing the size of the PCB substrate is relatively obtained.

Fourth, it has the effect of reducing PCB board.

Fifth, since the antenna opening area is not required separately, it is possible to implement a multifunctional device without changing the size of the substrate, thereby reducing the cost.

Meanwhile, an embodiment of the present invention described with reference to Figs. 1 to 8 may further include a structure for preventing interference. This will be described below. 9 is a plan view of a patch array antenna according to another embodiment of the present invention.

At least one patch 110 included in the patch group is connected to at least one first feeder line 121 and at least one second feeder line 122. At this time, the first feeder line 121 may be orthogonal to the second feeder line 122.

Patch array antenna 100 may experience a performance change due to interference between elements since a single radiating element (i.e., patches 110) are arranged close together. In the present invention, in order to commonly use a single radiating element, a plurality of directional feed lines (e.g., a first feeder line 121 and a second feeder line 122) are connected to a single radiating element. In the present invention, the feed directions of the feed lines are perpendicular to each other to minimize the interference that may occur at this time.

On the other hand, it may include a structure for suppressing the surface wave current on the dielectric in order to suppress interferences that would inevitably occur.

Fig. 9 shows an example in which a structure 150 for suppressing surface waves is inserted into the patch array antenna 100. Fig.

The structure 150 is a metal component and is positioned between the first feeder line 121 and the second feeder line 122 connected to any one of the patches 110 included in the patch group.

10 is a partially enlarged view of a patch array antenna according to another embodiment of the present invention.

10, the structure 150 may be formed by a first patch 210, a second patch 220, a third patch 230, and a fourth patch 240 included in a patch group And can be formed in an enclosed space. At this time, the first patch 210 passes through the first feed line 251, which is one of the first feed lines, and the second feed line 252, which is one of the second feed lines, And the fourth patch 240 is connected to the second patch 220 through the first b feeder line 253 which is another one of the first feeder lines and the second b feeder line 254 which is another one of the second feeder lines, And the third patch 230, respectively.

The structure 150 may include a via hole 151 electrically connected to a ground plane of the dielectric substrate. The via hole 151 is formed at one side (ex. Central portion) of the structure 150 to electrically connect the structure 150 to the ground plane of the dielectric substrate.

The structure 150 is in the form of a copper foil and may be formed on the dielectric substrate of the patch array antenna 100. The structure 150 may be made of a metal other than a copper foil and thinly formed in a film form.

The structure 150 may be formed on the patch array antenna 100 using an etching process such as an antenna manufacturing process.

The structure 150 may be formed on the dielectric substrate in various shapes such as rectangular, hexagonal, and cross-shaped.

On the other hand, the patch array antenna 100 can be formed to have different widths of feed parts connecting the same radiating elements for ensuring the level of the side lobes. The following description will be made with reference to the drawings. 11 is a plan view of a patch array antenna according to another embodiment of the present invention.

The first feeder line 161 or the second feeder line 162 connected to the patch located at least at one end in the first patch group 111 or the second patch group 112 is connected to a patch The first feed line 163 or the second feed line 164 connected to the patch located at the center in the first patch group 111 or the second patch group 112) than the feed line or the second feed line (e.g., the first patch group 111 or the second patch group 112) .

That is, the width of the feeding part connecting the radiating elements at the center of each array can be made thinner than the width of the feeding part connecting the radiating elements at the edges of each array.

On the other hand, the widths of the feeding parts connecting the same radiating elements may be irregularly connected to each other to secure the level of the side lobes.

A radar signal transmitting and receiving apparatus according to the present invention includes a radar signal generating unit and a patch array antenna (100). Such a radar signal transmitting and receiving apparatus can be mounted on a vehicle.

The radar signal generation unit generates the radar signal, and is the same concept as the RF module.

The radar signal transmitting / receiving apparatus acquires the x-axis direction information of the target using patches (e.g., the first patch group 111) included in the patch group and the first feeder lines. Also, the radar signal transmitting / receiving apparatus acquires the y-axis direction information of the target using the patches (e.g., the second patch group 112) included in the patch group and the second feeder lines. Thus, the x-axis direction information of the target and the y-axis direction information of the target obtained by the radar signal transmitting and receiving apparatus can be used to generate the three-dimensional position information of the target.

The patch array antenna 100 outputs the radar signal generated by the radar signal generation unit to the outside, and receives the reflected and radar signal. Features of the patch array antenna 100 have been described above with reference to FIGS. 1 to 8, and a detailed description thereof will be omitted.

It is to be understood that the present invention is not limited to these embodiments, and all elements constituting the embodiment of the present invention described above are described as being combined or operated in one operation. That is, within the scope of the present invention, all of the components may be selectively coupled to one or more of them. In addition, although all of the components may be implemented as one independent hardware, some or all of the components may be selectively combined to perform a part or all of the functions in one or a plurality of hardware. As shown in FIG. In addition, such a computer program may be stored in a computer readable medium such as a USB memory, a CD disk, a flash memory, etc., and read and executed by a computer to implement an embodiment of the present invention. As the recording medium of the computer program, a magnetic recording medium, an optical recording medium, a carrier wave medium, and the like can be included.

Furthermore, all terms including technical or scientific terms have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined in the Detailed Description. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

It will be apparent to those skilled in the art that various modifications, substitutions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. will be. Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical spirit of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings . The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

Claims (20)

A patch group that includes patches that are positioned coplanarly to create a predetermined radiation pattern; And
A first feeder line connecting patches arranged in one direction among the patches, and a second feeder line connecting patches arranged in the other direction among the patches,
And a plurality of patch antennas. The method according to claim 1,
Wherein at least a part of the patches are simultaneously included in a first patch group including the patches arranged in the one direction and a second patch group including the patches arranged in the other direction. 3. The method of claim 2,
Wherein the patch group includes the first patch group constituting at least one column and the second patch group constituting at least one row. The method according to claim 1,
Wherein the patches are arranged in a tiled fashion. 3. The method of claim 2,
Wherein the patch group includes the first patch group forming a first distance between adjacent patches and the second patch group forming a second distance between patches adjacent to the first patch group. 6. The method of claim 5,
Wherein a first distance between patches included in the first patch group is different from a second distance between the second patch groups. The method according to claim 1,
Wherein the first feeder lines connect adjacent patches among the patches arranged in one direction and the second feeder lines mutually connect adjacent patches out of the patches arranged in the other direction, antenna. The method according to claim 1,
A first receiving module for obtaining first signals for obtaining first information on a target using the patches and the first feeder lines; And
A second receiving module for obtaining second signals for obtaining second information on the target using the patches and the second feeder lines,
Further comprising: a plurality of patch antennas disposed on said patch array antenna. 9. The method of claim 8,
Wherein the first receiving module obtains the x-axis direction information of the target with the first information and the second receiving module obtains the y-axis direction information of the target with the second information. . 10. The method of claim 9,
Wherein the first feeder lines are longer than the second feeder lines. The method according to claim 1,
Wherein the patch array antenna is mounted on a vehicle and used when transmitting and receiving a radar signal. The method according to claim 1,
Wherein at least one patch included in the patch group is connected to at least one first feeder line and at least one second feeder line. 13. The method of claim 12,
And the first feeder line is orthogonal to the second feeder line. The method according to claim 1,
A structure of a metal component, which is located between a first feed line and a second feed line connected to a patch included in the patch group
Further comprising: an antenna connected to the antenna. 15. The method of claim 14,
Wherein the structure comprises a via hole electrically connected to a ground plane of the dielectric substrate. 15. The method of claim 14,
Wherein the structure is formed in the form of a copper foil on the dielectric substrate of the patch array antenna using etching. The method according to claim 1,
The first patch is connected to the second patch and the third patch through the first feed line, which is one of the first feed lines, and the second feed line, which is one of the first feed lines,
The fourth patch is connected to the second patch and the third patch through a first b feeder line which is another one of the first feeder lines and a second b feeder line which is another one of the second feeder lines,
A structure of a metal component, which is formed in a space surrounded by the first patch, the second patch, the third patch and the fourth patch,
Further comprising: an antenna connected to the antenna. 3. The method of claim 2,
The first feeder line or the second feeder line connected to the patch located at least one end of the first patch group or the second patch group is wider than the first feeder line or the second feeder line connected to the patch not positioned at the one end, Wherein the patch array antenna comprises: A radar signal generator for generating a radar signal; And
A patch group for outputting the radar signal to the outside and receiving the radar signal reflected and returned, the patch group including patches positioned on the same plane to generate a predetermined radiation pattern, and a patch group And a second feeder line connecting patches arranged in the other direction among the patches. The patch array antenna
And a radar signal transmitter and receiver. 20. The method of claim 19,
The radar signal transmitting / receiving apparatus acquires information on the x-axis direction of the target using the patches and the first feeder lines, obtains the y-axis direction information of the target using the patches and the second feeder lines,
Wherein the x-axis direction information of the target and the y-axis direction information of the target are used to generate the three-dimensional position information of the target.

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