Antenna array and vehicle including the same

Abstract

The present disclosure relates to an antenna array and a vehicle including the antenna array. The antenna array has broadband high-gain characteristics and includes: a dielectric; a loop disposed on a first surface of the dielectric and having a first slot and a second slot; a first feed pin disposed on the second surface of the dielectric at a position corresponding to the first slot; a second feed pin disposed on the second surface of the dielectric at a position corresponding to the second slot; and a separator disposed between the first feed pin and the second feed pin and electrically connected to the loop.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based upon and claims the benefit of priority from Korean Patent Application No. 10-2019-0169658, filed on December 18, 2019, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] The present disclosure relates to an antenna array and a vehicle including the same, and more particularly, to an antenna array and a vehicle including a plurality of independent single antennas. Background Art

[0004] Existing commercial WiFi, Bluetooth, WiMax, IEEE 802.11p-based short-range communications, and 4G technologies are limited in bandwidth and therefore have difficulty processing large amounts of data (such as autonomous vehicle communications and 3D and high-definition images from vehicle sensor systems) without delay.

[0005] Therefore, next-generation millimeter-wave-based wireless communication technology, featuring high transmission speeds, object communication, and high reliability, is being applied to cellular-V2X communications to transmit large amounts of data without delay during autonomous vehicle driving. Specifically, research on connected cars is actively underway in the 28 GHz frequency band.

[0006] Since the path loss is large in the millimeter wave band, it is necessary to develop antennas with high gain characteristics.

[0007] Generally, an antenna is a transducer for transmitting or receiving electromagnetic waves in a specific area. The antenna converts an electrical signal of an electromagnetic frequency band into electromagnetic waves and transmits the signal, and vice versa.

[0008] Antennas are widely used in radio and television radios, radio and two-way communication devices, and radar and space exploration radio telescopes.

[0009] Physically, an antenna is an arrangement of conductors that radiate an electromagnetic field into free space, which occurs when a voltage is applied together with a modulated current. Alternatively, the current and voltage induced in the antenna are generated by the influence of the electromagnetic field.

[0010] Antennas can be classified into dipole antennas, monopole antennas, patch antennas, parabolic antennas, helical antennas, Yagi antennas, slot antennas, and array antennas based on their shape. In some cases, the desired radiation pattern may not be achieved by a single antenna. Summary of the Invention

[0011] If a radiation pattern that cannot be obtained by a single antenna is required, an antenna array can be used in which multiple independent single antennas are arranged in a specific pattern. By using such an antenna array, directivity is provided.

[0012] Therefore, an object of the present disclosure is to provide an antenna array with broadband high-gain characteristics.

[0013] Therefore, one aspect of the present disclosure provides an antenna array, which includes: a dielectric; a loop, arranged on a first surface of the dielectric and having a first slot and a second slot; a first feed pin, arranged at a position corresponding to the first slot on the second surface of the dielectric; a second feed pin, arranged at a position corresponding to the second slot on the second surface of the dielectric; and a divider, arranged between the first feed pin and the second feed pin and electrically connected to the loop.

[0014] The separator may include a stub disposed between the first feeding pin and the second feeding pin on the second surface of the dielectric; and a through hole extending from both ends of the stub through the dielectric to the loop.

[0015] The loop may include a divider separating the first gap from the second gap.

[0016] The shortened portion may be provided at a position corresponding to the partition.

[0017] The first feed pin may extend from a first point corresponding to the loop toward a center of the first slot.The second feed pin may extend from a second point corresponding to the loop toward a center of the second slot.

[0018] The first feeding pin and the second feeding pin may be disposed parallel to each other.

[0019] The spacer may include a stub portion disposed in parallel with the first feeding pin and the second feeding pin.

[0020] One aspect of the present disclosure provides an antenna array, comprising a dielectric, a first antenna, and a second antenna. The first antenna comprises a first loop and a first feed pin, the first loop being arranged on the lower surface of the dielectric and having a first slot formed on the first loop, the first feed pin being arranged on the upper surface of the dielectric and being arranged at a position corresponding to the first slot. The second antenna comprises a second loop and a second feed pin, the second loop being arranged on the lower surface of the dielectric and having a second slot formed on the second loop, the second feed pin being arranged on the upper surface of the dielectric and being arranged at a position corresponding to the second slot. The antenna array further comprises a separator separating the first antenna and the second antenna. At least a portion of the first loop may be shared with at least a portion of the second loop.

[0021] The separator may include a stub provided between the first feed pin and the second feed pin on the second surface of the dielectric; and a through hole extending from both ends of the stub through the dielectric to the loop.

[0022] The stub portion may be provided at a position shared by the first loop and the second loop.

[0023] The first feed pin may extend from a first point corresponding to the loop toward a center of the first slot.The second feed pin may extend from a second point corresponding to the loop toward a center of the second slot.

[0024] The first feeding pin and the second feeding pin may be disposed parallel to each other.

[0025] The spacer may include a stub portion disposed in parallel with the first feeding pin and the second feeding pin.

[0026] One aspect of the present disclosure provides a vehicle including a vehicle body and an antenna array spaced a predetermined distance from the vehicle body. The antenna array may include: a dielectric; a loop disposed on a first surface of the dielectric and having a first slot and a second slot; a first feed pin disposed on the second surface of the dielectric at a position corresponding to the first slot; a second feed pin disposed on the second surface of the dielectric at a position corresponding to the second slot; and a separator disposed between the first feed pin and the second feed pin and electrically connected to the loop.

[0027] The separator may include a stub provided between the first feed pin and the second feed pin on the second surface of the dielectric; and a through hole extending from both ends of the stub through the dielectric to the loop.

[0028] The loop may include a divider separating the first gap from the second gap.

[0029] The shortened portion may be provided at a position corresponding to the partition.

[0030] The first feed pin may extend from a first point corresponding to the loop toward a center of the first slot.The second feed pin may extend from a second point corresponding to the loop toward a center of the second slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] These and / or other aspects of the present disclosure will become apparent and more readily understood from the following description of embodiments with reference to the accompanying drawings, in which:

[0032] Figure 1a and Figure 1b A slot loop antenna according to an embodiment is shown.

[0033] Figure 2a and Figure 2b An antenna assembly including a slot loop antenna and a reflector according to an embodiment is shown.

[0034] Figure 3 Shown Figure 1a and Figure 1b The slot loop antenna shown and Figure 2a and Figure 2b The return loss of the antenna assembly is shown.

[0035] Figure 4a and Figure 4b An antenna assembly including a 1×2 slot loop antenna array and a reflector according to an embodiment is shown.

[0036] Figure 5a and Figure 5b An antenna assembly including a 1×2 slot loop antenna array including a divider and a reflector is shown according to one embodiment.

[0037] Figure 6 Shown Figure 4a 、 Figure 4b 、 Figure 5a and Figure 5b The return loss of the antenna assembly is shown.

[0038] Figure 7 Shown Figure 4a 、 Figure 4b 、 Figure 5a and Figure 5b The transfer coefficient of the antenna assembly is shown.

[0039] Figure 8 A 1×8 slot loop antenna arrangement according to an embodiment is shown.

[0040] Figure 9 A 1×8 slot loop antenna arrangement including a divider according to an embodiment is shown.

[0041] Figure 10 Shown Figure 8 and Figure 9 Return loss of the 1×8 slot loop antenna arrangement shown.

[0042] Figure 11 Shown Figure 8 and Figure 9 Transfer coefficient of the 1×8 slot loop antenna arrangement shown.

[0043] Figure 12 A vehicle equipped with a 1×8 slot loop antenna arrangement is shown. DETAILED DESCRIPTION

[0044] Hereinafter, operation principles and embodiments of the present disclosure are described with reference to the accompanying drawings.

[0045] Furthermore, when an element in the written description and claims is described as “for” performing or implementing a stated function, step, instruction set, etc., the element may also be considered to be “configured to” do so.

[0046] refer to Figure 1a and Figure 1b The first slot loop antenna 101 includes: a loop 110 having a slot 111 formed therein; a feeding pin 121 extending from one side of the loop 110 toward the center of the slot 111; and a dielectric 130 disposed between the loop 110 and the feeding pin 121.

[0047] like Figure 1a As shown, the loop 110 has a generally rectangular (or square) shape. A slit 111 is formed in the center of the loop 110 and has a generally rectangular (or square) shape. Thus, the loop 110 has a rectangular ring (or square ring) shape with a width W and a length L.

[0048] The width W and length L of the loop 110 may depend on the frequency f or the wavelength λ of the electromagnetic wave emitted by the first slot loop antenna 101. For example, the width W of the first slot loop antenna 10i designed to radiate electromagnetic waves of approximately 28 gigahertz (GHz) may be approximately 7.5 millimeters (mm) and its length L may be approximately 6.7 mm.

[0049] The loop 110 may be made of a conductive material in which an electric field is generated and current flows when a voltage is applied.

[0050] like Figure 1a As shown, dielectric 130 is provided between feed pin 121 and loop 110 .

[0051] The thickness T of the dielectric 130 may depend on the wavelength λ. For example, the thickness T of the dielectric 130 of the first slot loop antenna 101 designed to radiate electromagnetic waves of approximately 28 GHz may be 1 mm.

[0052] In the dielectric 130, electromagnetic waves may be generated by the feeding pin 121 and the loop 110. The electromagnetic waves generated in the dielectric 130 may be radiated into free space.

[0053] The dielectric 130 may be made of an insulating material in which an electric field is generated when a voltage is applied and no current flows. The dielectric 130 may be, for example, an insulating material having a dielectric constant of 2.2.

[0054] The feeding pin 121 has a substantially rod-shaped monopole antenna shape.

[0055] The feeding pin 121 is provided on the upper surface (opposite to the loop) of the dielectric 130. The feeding pin 121 is provided with the loop 110 on one of the two surfaces of the dielectric 130.

[0056] like Figure 1b As shown, the feed pin 121 extends from the edge of the loop 110 toward the center of the loop 110 (the center of the gap). For example, the feed pin 121 may extend from a position corresponding to the center of the bottom side of the loop 110 toward the center of the top side. The feed pin 121 overlaps the bottom side of the loop 110, but may not overlap the top side of the loop 110.

[0057] The feeding pin 121 may be formed of a conductive material in which an electric field is formed and current flows when a voltage is applied.

[0058] The first slot loop antenna 101 can operate in two operating modes. For example, the first slot loop antenna 101 can operate in a loop mode at approximately 28 GHz. Alternatively, the first slot loop antenna 101 can operate in a slot mode at approximately 38 GHz.

[0059] like Figure 3 As shown, the first slot loop antenna 101 may have minimum values of the return loss S11 at approximately 28 GHz and approximately 38 GHz. In addition, based on -10 dB from approximately 22.83 GHz to 43.34 GHz, the bandwidth of the first slot loop antenna 101 may be 20.51 GHz.

[0060] refer to Figure 2a and Figure 2b The second antenna assembly 200 may include a second slot loop antenna 201 and a reflector 202 .

[0061] The second slot loop antenna 201 includes: a loop 210 having a slot 211 formed therein; a feed pin 221 extending toward the center of the slot 211 on one side of the loop 210; and a dielectric 230 disposed between the loop 210 and the feed pin 221. The loop 210, the slot 211, the feed pin 221, and the dielectric 230 may be connected to Figure 1a and Figure 1b The loop 110 , slot 111 , feed pin 121 , and dielectric 130 shown are the same, and thus description thereof is omitted.

[0062] like Figure 2a As shown, the reflector 202 is arranged parallel to the second slot loop antenna 201. The reflector 202 is spaced apart from the second slot loop antenna 201 by a predetermined distance D. For example, the reflector 202 of the second antenna assembly 200 designed to emit electromagnetic waves at approximately 28 GHz is spaced approximately 1.7 mm apart from the second slot loop antenna 201.

[0063] The reflection plate 202 is provided closer to the loop 210 than the feeding pin 221. In other words, the reflection plate 202 is provided on the loop 210 side around the dielectric 230.

[0064] The reflection plate 202 may be made of a conductive material in which an electric field is generated and current flows when a voltage is applied.

[0065] The reflective plate 202 may be grounded. Alternatively, the reflective plate 202 may not have an electrical potential. In other words, the reflective plate 202 may not be electrically connected to the second antenna assembly 200.

[0066] The reflective plate 202 may reflect electromagnetic waves emitted from the second slot loop antenna 201. When the reflective plate 202 reflects the electromagnetic waves, the electromagnetic waves may be radiated more strongly toward the second slot loop antenna 201 based on the reflective plate 202.

[0067] The reflective plate 202 may be a structure spaced apart from the second slot loop antenna 201 .

[0068] For example, when the second slot loop antenna 201 is installed in a vehicle, the vehicle body may be the reflector 202. When the second slot loop antenna 201 is installed in a door of a vehicle, the vehicle door may be the reflector 202. When the second slot loop antenna 201 is installed in a roof of a vehicle, the vehicle roof may be the reflector 202.

[0069] exist Figure 3 2 shows the return loss S11 of the second antenna assembly 200. The second antenna assembly 200 may have local minimum values of the return loss S11 at approximately 30 GHz and approximately 33.5 GHz. In addition, based on -10 dB from approximately 26.66 GHz to 35.11 GHz, the bandwidth of the second antenna assembly 200 may be 8.45 GHz.

[0070] The second antenna assembly 200 having the second slot loop antenna 201 and the reflector 202 can reduce the bandwidth while improving the directivity of the beamforming of the reflector 202 .

[0071] Figure 4a and Figure 4b An antenna assembly including a 1×2 slot loop antenna array and a reflector according to an embodiment is shown. Figure 5a and Figure 5b An antenna assembly including a 1×2 slot loop antenna array including a divider and a reflector is shown according to one embodiment. Figure 6 Shown Figure 4a 、 Figure 4b 、 Figure 5a and Figure 5b The return loss of the antenna assembly is shown. Figure 7 Shown Figure 4a 、 Figure 4b 、 Figure 5a and Figure 5b The transfer coefficient of the antenna assembly is shown.

[0072] refer to Figure 4a and Figure 4b The third antenna assembly 300 includes a third slot loop antenna array 301 and a reflector 302 .

[0073] The third slot loop antenna array 301 includes: a loop 310 in which a first slot 311 and a second slot 312 are formed; a first feed pin 321 extending on one side of the loop 310 toward the center of the first slot 311; a second feed pin 322 extending on one side of the loop 310 toward the center of the second slot 312; and a dielectric 330 arranged between the first feed pin 321 and the second feed pin 322 and the loop 310.

[0074] like Figure 4a As shown, the loop 310 has a substantially rectangular (or square) shape. In addition, a gap may be formed at the center of the loop 310. A partition 310a may be provided to partition the gap into a first gap 311 and a second gap 312.

[0075] The separator 310a can be integrally formed with the loop 310 and positioned approximately in the center of the loop 310. Due to the separator 310a, the loop 310 has a shape in which a pair of rectangular loops share one side. Specifically, due to the separator 310a, the loop 310 has a shape similar to the figure "8."

[0076] The slit is divided into a first slit 311 and a second slit 312 by a partition 310a. The first slit 311 and the second slit 312 are arranged on the same plane. The first slit 311 and the second slit 312 may have the same size.

[0077] The separator 310 a and the loop 310 may be made of a conductive material in which an electric field is generated and current flows when a voltage is applied.

[0078] like Figure 4a As shown, the dielectric 330 is provided between the first feeding pin 321 and the second feeding pin 322 and the loop 310. The dielectric 330 may be Figure 1a and Figure 1b The dielectric 130 shown is the same, so its description is omitted.

[0079] The first feeding pin 321 and the second feeding pin 322 are provided on the dielectric 330. The first feeding pin 321 and the second feeding pin 322 each have a substantially rod-shaped monopole antenna shape.

[0080] like Figure 4b As shown, the first feeding pin 321 is provided at a position corresponding to the first slit 311. The first feeding pin 321 extends from a portion adjacent to the first slit 311 of the loop 310 toward the center of the first slit 311. For example, the first feeding pin 321 may extend from the bottom side of the loop 310 toward the center of the first slit 311.

[0081] like Figure 4b As shown, the second feeding pin 322 is provided at a position corresponding to the second slit 312. The second feeding pin 322 extends from a portion adjacent to the second slit 312 of the loop 310 toward the center of the second slit 312. For example, the second feeding pin 322 may extend from the bottom side of the loop 310 toward the center of the second slit 312.

[0082] The first feeding pin 321 and the second feeding pin 322 are arranged in parallel.

[0083] The first and second feeding pins 321 and 322 may be formed of a conductive material in which an electric field is formed and current flows when a voltage is applied.

[0084] As such, the third slot loop antenna array 301 may be a 1×2 antenna array having a combination of a single slot loop antenna consisting of the first slot 311 and the first feed pin 321 and a single slot loop antenna consisting of the second slot 312 and the second feed pin 322 .

[0085] The reflector 302 is arranged parallel to the third slot loop antenna array 301. The reflector 302 is spaced apart from the third slot loop antenna array 301 by a predetermined distance D. The reflector 302 is arranged on the loop 310 side relative to the dielectric 330. The reflector 302 can reflect electromagnetic waves emitted from the third slot loop antenna array 301.

[0086] refer to Figure 5a and Figure 5b The fourth antenna assembly 400 includes a fourth slot loop antenna array 401 and a reflector 402 .

[0087] The fourth slot loop antenna array 401 includes: a loop 410 in which a first slot 411 and a second slot 412 are formed by a partition 410 a ; a first feed pin 421 ; a second feed pin 422 ; a dielectric 430 ; and a partition 441 .

[0088] a partition 410 a , a first slit 411 , a second slit 412 , a loop 410 , a first feeding pin 421 , a second feeding pin 422 , and a dielectric 430 ; and Figure 4a and Figure 4b The illustrated partition 310 a , the first slit 311 , the second slit 312 , the loop 310 , the first feeding pin 321 , the second feeding pin 322 , and the dielectric 330 may be respectively the same, and description thereof will be omitted.

[0089] The spacer 441 includes a stub 441a provided on the dielectric 430. The stub 441a may be provided on the same surface as the first and second feeding pins 421 and 422.

[0090] The stub 441a may be provided at a position corresponding to the separator 410a of the loop 410. Specifically, the separator 410a separates the first slit 411 from the second slit 412 at the bottom surface of the dielectric 430. The stub 441a may separate the first feeding pin 421 from the second feeding pin 422 on the top surface of the dielectric 430. The stub 441a is provided in parallel with the first feeding pin 421 and the second feeding pin 422.

[0091] The stub portion 441 a may be formed of a conductive material in which an electric field is formed and current flows when a voltage is applied.

[0092] Through holes 441b are provided at both ends of the stub 441a, which extend from the stub 441a through the dielectric 430 to the loop 410. The interior of the through holes 441b is filled or coated with a conductive material. Therefore, the stub 441a can be electrically connected to the loop 410 through the through holes 441b.

[0093] The separator 441 including the stub 441a can isolate the slot loop antenna including the first feed pin 421 and the first slot 411 from the slot loop antenna consisting of the second feed pin 422 and the second slot 412. In other words, the separator 441 can isolate individual slot antennas in the 1×2 antenna array from each other.

[0094] Therefore, the transfer coefficient between the individual slot antennas included in the fourth slot loop antenna array 401 may be reduced.

[0095] like Figure 6As shown, the bandwidth of the third antenna assembly 300 may be 7.84 GHz based on a -10 dB range from approximately 26.72 GHz to 34.56 GHz. Furthermore, the bandwidth of the fourth antenna assembly 400 may be 7.00 GHz based on a -10 dB range from approximately 27.07 GHz to 34.07 GHz. Thus, the bandwidth of the fourth antenna assembly 400 including the divider 441 is similar to the bandwidth of the third antenna assembly 300 not including the divider.

[0096] Compared to bandwidth, at most frequencies, the transfer coefficient S12 of the fourth antenna assembly 400 is smaller than the transfer coefficient S12 of the third antenna assembly 300. For example, at 28 GHz, the transfer coefficient S12 of the fourth antenna assembly 400 is approximately -13 dB, while the transfer coefficient S12 of the third antenna assembly 300 is approximately -15 dB.

[0097] A larger transfer coefficient indicates greater interference between individual antennas. A smaller transfer coefficient indicates that the individual antennas are isolated from each other. If the isolation of individual antennas is high, the directivity of the antenna array can be improved.

[0098] Therefore, the directivity of the fourth antenna assembly 400 including the spacer 441 may be improved over the directivity of the third antenna assembly 300 not including the spacer.

[0099] Figure 8 A 1×8 slot loop antenna arrangement according to an embodiment is shown. Figure 9 A 1×8 slot loop antenna arrangement including a divider according to an embodiment is shown. Figure 10 Shown Figure 8 and Figure 9 Return loss of the 1×8 slot loop antenna arrangement shown. Figure 11 Shown Figure 8 and Figure 9 Transfer coefficient of the 1×8 slot loop antenna arrangement shown.

[0100] refer to Figure 8 The fifth antenna assembly 500 includes a fifth slot loop antenna array 501 and a reflector 502 .

[0101] The fifth slot loop antenna array 501 includes a loop 510 , first to eighth feed pins 521 to 528 , and a dielectric.

[0102] The first to eighth slits 511 to 518 are formed inside the loop 510. The first to eighth slits 511 to 518 are separated by first to seventh separators 510a to 510g. In detail, the interior of the loop 510 is divided into the first to eighth slits 511 to 518 by the first to seventh separators 510a to 510g. The first to eighth slits 511 to 518 may have the same size.

[0103] Although not shown in the drawings, a dielectric is provided between the first to eighth feeding pins 521 to 528 and the loop 510 .

[0104] The first to eighth feeding pins 521 to 528 are provided on the dielectric. Each of the first to eighth feeding pins 521 to 528 has a substantially monopole antenna shape.

[0105] The first to eighth feeding pins 521 to 528 are respectively disposed at positions corresponding to the first to eighth slits 511 to 518 .

[0106] In this way, the fifth slot loop antenna array 501 may be a 1×8 antenna array having the first to eighth feed pins 521 to 528 and the first to eighth slots 511 to 518 .

[0107] refer to Figure 9 The sixth antenna assembly 600 includes a sixth slot loop antenna array 601 and a reflector 602 .

[0108] The sixth slot loop antenna array 601 includes a loop 610 , first to eighth feed pins 621 to 628 , a dielectric, and first to seventh dividers 641 to 647 .

[0109] The first to eighth slits 611 to 618 are formed inside the loop 610. The first to eighth slits 611 to 618 are separated by first to seventh spacers.

[0110] The first to eighth feeding pins 621 to 628 are provided on the dielectric. Each of the first to eighth feeding pins 621 to 628 is provided at a position corresponding to the first to eighth slits 611 to 618.

[0111] The sixth slot loop antenna array 601 may be a 1×8 antenna array having first to eighth electrical probes 621 to 628 and first to eighth slots 611 to 618 .

[0112] The first to seventh separators 641 to 647 are respectively disposed on the dielectric and disposed between the feeding pins 621 to 628 .

[0113] Each of the first to seventh separators 641 to 647 includes a stub provided on a dielectric and a through hole extending from an end of the stub through the dielectric to the loop 610. The stub can be electrically connected to the loop 610 through the through hole.

[0114] The first to seventh dividers 641 to 647 may isolate individual slot antennas of the 1×8 antenna array from each other.

[0115] Therefore, the transfer coefficient between the individual slot antennas included in the sixth slot loop antenna array 601 may be reduced.

[0116] like Figure 10 As shown, the bandwidth of fifth antenna assembly 500 may be 9.34 GHz based on a -10 dB range from approximately 25.53 GHz to 34.87 GHz. Furthermore, the bandwidth of sixth antenna assembly 600 may be 6.87 GHz based on a -10 dB range from approximately 27.00 GHz to 33.87 GHz. Thus, the bandwidth of sixth antenna assembly 600, including first to seventh dividers 641 to 647, is slightly smaller than the bandwidth of fifth antenna assembly 500, which does not include a divider.

[0117] like Figure 11 As shown, compared with the bandwidth, at most frequencies, the transfer coefficient S12 of the sixth antenna assembly 600 is smaller than the transfer coefficient S12 of the fifth antenna assembly 500. For example, at 28 GHz, the transfer coefficient S12 of the sixth antenna assembly 600 is approximately -30 dB, while the transfer coefficient S12 of the fifth antenna assembly 500 is approximately -22 dB.

[0118] A larger transfer coefficient indicates greater interference between individual antennas. A larger transfer coefficient indicates that the individual antennas are isolated from each other. If the isolation of individual antennas is high, the directivity of the antenna array can be improved.

[0119] Therefore, the directivity of the sixth antenna assembly 600 including the first to seventh spacers 641 to 647 may be most improved than the directivity of the fifth antenna assembly 500 including no spacers.

[0120] Figure 12 A vehicle equipped with a 1×8 slot loop antenna arrangement is shown.

[0121] The vehicle 1 has a chassis forming its exterior and includes a body 10 for accommodating a driver and / or luggage. The chassis includes components of the vehicle 1 other than the body 10 and electrical devices for protecting the driver and providing convenience to the driver.

[0122] The body 10 of the vehicle 1 is provided with a 1×8 slot loop antenna array 701. The slot loop antenna array 701 includes a divider.

[0123] The 1×8 slot loop antenna array 701 can be installed in the vehicle door 11 to communicate with the communication equipment installed on the side of the road. In addition, the 1×8 slot loop antenna array 701 can be installed in the front and / or rear of the vehicle body 10 to communicate with the vehicles in front and / or behind the vehicle 1.

[0124] The 1×8 slot loop antenna array 701 may use the door 11 or the body 10 of the vehicle 1 as a reflection plate. The 1×8 slot loop antenna array 701 is spaced apart from the door 11 and / or the body 10 by a predetermined distance.

[0125] As is apparent from the above, antenna arrays can provide broadband high-gain characteristics.

Claims

1. An antenna array comprising dielectrics; a loop disposed on the first surface of the dielectric and having a first gap and a second gap; a first feeding pin, disposed at a position corresponding to the first gap on the second surface of the dielectric; a second feeding pin, provided at a position on the second surface of the dielectric corresponding to the second gap; and a separator disposed between the first feed pin and the second feed pin and electrically connected to the loop, The separator includes a short section, and the short section is arranged between the first feeding pin and the second feeding pin on the second surface of the dielectric.

2. The antenna array according to claim 1, wherein: The separator further comprises: A through hole extends from both ends of the stub through the dielectric to the loop.

3. The antenna array according to claim 2, wherein: The loop includes a separator separating the first gap and the second gap.

4. The antenna array according to claim 3, wherein: The shortened portion is provided at a position corresponding to the partition.

5. The antenna array according to claim 1, wherein: The first feed pin extends from a first point corresponding to the loop toward a center of the first slot, and the second feed pin extends from a second point corresponding to the loop toward a center of the second slot. The antenna array according to claim 5 , wherein: The first feeding pin and the second feeding pin are arranged parallel to each other.

7. The antenna array according to claim 6, wherein: The stub portion is arranged in parallel with the first feeding pin and the second feeding pin.

8. An antenna array, comprising: dielectrics; a first antenna comprising a first loop and a first feeding pin, wherein the first loop is provided on a lower surface of the dielectric and has a first slot formed therein, and the first feeding pin is provided on an upper surface of the dielectric and is provided at a position corresponding to the first slot; a second antenna comprising a second loop and a second feeding pin, the second loop being provided on the lower surface of the dielectric and having a second slot formed therein, the second feeding pin being provided on the upper surface of the dielectric and disposed at a position corresponding to the second slot; as well as a separator, separating the first antenna and the second antenna, wherein at least a portion of the first loop is shared with at least a portion of the second loop, and The separator includes a short section, and the short section is arranged between the first feeding pin and the second feeding pin on the upper surface of the dielectric.

9. The antenna array according to claim 8, wherein: The separator further comprises: A through hole extends from both ends of the stub through the dielectric to the first loop and the second loop.

10. The antenna array according to claim 8, wherein: The stub portion is provided at a position shared by the first loop and the second loop.

11. The antenna array according to claim 8, wherein: The first feeding pin extends from a first point corresponding to the first loop toward a center of the first slot, and the second feeding pin extends from a second point corresponding to the second loop toward a center of the second slot.

12. The antenna array according to claim 11, wherein: The first feeding pin and the second feeding pin are arranged parallel to each other.

13. The antenna array according to claim 12, wherein: The stub portion is arranged in parallel with the first feeding pin and the second feeding pin.

14. A vehicle comprising: body; as well as The antenna array is spaced a predetermined distance from the vehicle body, wherein: The antenna array comprises: dielectrics, a loop disposed on the first surface of the dielectric and having a first gap and a second gap, A first feeding pin is provided at a position corresponding to the first gap on the second surface of the dielectric, a second feeding pin, provided at a position corresponding to the second gap on the second surface of the dielectric, and A separator is provided between the first feeding pin and the second feeding pin and is electrically connected to the loop.

15. The vehicle of claim 14, wherein: The separator comprises: a stub portion disposed between the first feed pin and the second feed pin on the second surface of the dielectric; and A through hole extends from both ends of the stub through the dielectric to the loop.

16. The vehicle of claim 15, wherein: The loop includes a separator separating the first gap and the second gap.

17. The vehicle of claim 16, wherein: The shortened portion is provided at a position corresponding to the partition.

18. The vehicle of claim 14, wherein: The first feed pin extends from a first point corresponding to the loop toward a center of the first slot, and the second feed pin extends from a second point corresponding to the loop toward a center of the second slot.

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