CN219123494U

CN219123494U - Four-antenna integrated device

Info

Publication number: CN219123494U
Application number: CN202223586246.0U
Authority: CN
Inventors: 樊明延; 朱燕齐; 王揽月
Original assignee: Lookout Technology Group Co ltd; Beijing Zjx Antong Technology Co ltd
Current assignee: Lookout Technology Group Co ltd; Beijing Zjx Antong Technology Co ltd
Priority date: 2022-12-31
Filing date: 2022-12-31
Publication date: 2023-06-02
Anticipated expiration: 2032-12-31

Abstract

The utility model relates to the technical field of unmanned aerial vehicle countering, in particular to a four-antenna integrated device, which solves the problems that antenna integrated equipment in the prior art is high in cost and poor in consistency, each integrated antenna cannot guarantee impedance matching, and main lobe directivity of the traditional antenna integrated device is difficult to achieve consistency. The utility model provides a four antenna integrated device, includes SUB1G frequency channel antenna, and SUB1G frequency channel antenna's top is equipped with L frequency channel antenna, and L frequency channel antenna's top is equipped with the two antennas of WIFI, wherein keeps apart fixedly through the insulating column between SUB1G frequency channel antenna and L frequency channel antenna and the two antennas of WIFI. The antenna is different from a common simple stacked antenna integrated device, each antenna in the antenna integrated device innovatively adopts the L-shaped choke branch of the ground short circuit, can effectively choke the current outside the ground of the microstrip line, and reduces the influence of mutual coupling among the antennas on the matching characteristic of the antenna port.

Description

Four-antenna integrated device

Technical Field

The utility model relates to the technical field of unmanned aerial vehicle countering, in particular to a four-antenna integrated device.

Background

The civil unmanned aerial vehicle market develops rapidly, the occurrence of the unmanned aerial vehicle illegal and illegal events is also endangered, serious threat is formed to various public safety, and the unmanned aerial vehicle flies black to cause the occurrence of large-area delay event frequency of flights; for units in sensitive critical areas, it is very necessary and urgent to be able to effectively counter the unmanned aerial vehicle by technical means, and the main method of counter the unmanned aerial vehicle is to block the communication and navigation wireless signals of the unmanned aerial vehicle by using radio interference technology.

In the prior art, the antenna integrated equipment has high cost and poor consistency, and each integrated antenna cannot ensure impedance matching, and meanwhile, the main lobe directivity of the traditional antenna integrated device is difficult to achieve consistency, so that the antenna integrated equipment is very inconvenient.

Disclosure of Invention

The utility model aims to provide a four-antenna integrated device, which solves the problems that in the prior art, antenna integrated equipment is high in cost and poor in consistency, impedance matching performance of each integrated antenna cannot be guaranteed, and main lobe directivity of the traditional antenna integrated device is difficult to achieve consistency.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a four antenna integrated device, includes SUB1G frequency channel antenna, SUB1G frequency channel antenna's top is equipped with L frequency channel antenna, and L frequency channel antenna's top is equipped with the two antennas of WIFI, wherein keeps apart fixedly through the insulating column between SUB1G frequency channel antenna and L frequency channel antenna and the two antennas of WIFI, and SUB1G frequency channel antenna and L frequency channel antenna and the two antennas of WIFI are located integrated device's bottom, intermediate level and top layer respectively.

Preferably, the SUB1G band antenna comprises a first antenna dielectric plate, a first antenna connector, a first antenna reflector, a first antenna exciter, and a first antenna director, and the first antenna dielectric plate, the first antenna connector, the first antenna reflector, the first antenna exciter, and the first antenna director are sequentially and fixedly connected.

Preferably, the first antenna exciter comprises a first microstrip transmission line, a first feed via hole, a bowknot type symmetrical oscillator and a first L-shaped choke branch, and the first antenna exciter comprises the first microstrip transmission line, the first feed via hole, the bowknot type symmetrical oscillator and the first L-shaped choke branch which are fixedly connected in sequence.

Preferably, the L-band antenna includes a second antenna dielectric plate, a second antenna joint, a second antenna reflector, a second antenna exciter, and a second antenna director, where the second antenna dielectric plate, the second antenna joint, the second antenna reflector, the second antenna exciter, and the second antenna director are sequentially and fixedly connected.

Preferably, the second antenna exciter comprises a second microstrip transmission line, a second feed via hole, a first dipole and a second L-shaped choke branch, and the second microstrip transmission line, the second feed via hole, the first dipole and the second L-shaped choke branch are sequentially and fixedly connected.

Preferably, the WIFI dual antenna includes a WIFI low frequency antenna and a WIFI high frequency antenna, wherein the WIFI low frequency antenna includes a third antenna dielectric plate, a third antenna connector, a third antenna reflector, a third antenna exciter, a third antenna director, and the third antenna dielectric plate, the third antenna connector, the third antenna reflector, the third antenna exciter, and the third antenna director are sequentially and fixedly connected, and the third antenna exciter includes a third microstrip transmission line, a third feed via hole, a second dipole, and a third L-shaped choke branch, wherein the third microstrip transmission line, the third feed via hole, the second dipole, and the third L-shaped choke branch are sequentially and fixedly connected.

Preferably, the WIFI high frequency antenna includes a first antenna unit, a second antenna unit, a microstrip combiner, and a fourth antenna joint, where the first antenna unit, the second antenna unit, the microstrip combiner, and the fourth antenna joint are sequentially and fixedly connected, the first antenna unit includes a fourth antenna reflector, a fourth antenna exciter, and a fourth antenna director, where the fourth antenna exciter includes a fourth microstrip transmission line, a fourth feed via hole, a third dipole, and a fourth L-shaped choke branch, and where the fourth microstrip transmission line, the fourth feed via hole, the third dipole, and the fourth L-shaped choke branch are sequentially and fixedly connected, and the first antenna unit and the second antenna unit have the same structure.

The utility model has at least the following beneficial effects:

the antenna is different from a common simple stacked antenna integrated device, each antenna in the antenna integrated device creatively adopts an L-shaped choke branch short-circuited to ground, can effectively choke current on the outer side of the ground of a microstrip line, reduces the influence of mutual coupling among antennas on the matching characteristic of an antenna port, and creatively adopts a structure of integrating a symmetrical double-unit antenna array and a single antenna in the double-antenna design of an intermediate layer, so that the symmetrical design can effectively cancel scattering current which is generated by mutual coupling of the antennas and has worsening influence on the directivity of the antennas, ensures the directional consistency of double-antenna beams, and has the advantages of low cost and good consistency because four antennas are processed on three circuit boards by adopting a planar printed circuit process.

In the WIFI double-antenna design of the middle layer, a structure of integrating a symmetrical double-unit antenna array and a single antenna is creatively adopted, and the symmetrical design can effectively cancel scattered current which is generated by mutual coupling of antennas and has a worsening effect on the directivity of the antennas, so that the consistency of the beam directions of the double antennas is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a four-antenna integrated device according to the present utility model;

fig. 2 is a schematic side view of a four-antenna integrated device according to the present utility model;

fig. 3 is a top view of a SUB1G band antenna of the bottom layer of the four-antenna integrated device of the present utility model;

fig. 4 is a bottom view of the SUB1G band antenna of the four-antenna integrated device of the present utility model;

fig. 5 is a top view of an L-band antenna of an intermediate layer of a four-antenna integrated device according to the present utility model

Fig. 6 is a bottom view of the middle L-band antenna of the four-antenna integrated device of the present utility model;

fig. 7 is a top view of the top WIFI dual antenna of the four antenna integrated device of the present utility model;

fig. 8 is a bottom view of the top WIFI dual antenna of the four antenna integrated device of the present utility model;

fig. 9 is a partial view of a top WIFI dual antenna structure of a four antenna integrated device according to the present utility model.

In the figure: 1. SUB1G band antenna; 101. a first antenna dielectric plate; 102. a first antenna joint; 103. a first antenna reflector; 104. a first antenna exciter; 10401. a first microstrip transmission line; 10402. a first feed-through via; 10403. bowtie type dipoles; 10404. a first L-shaped choke branch; 105. a first antenna director; 2. an L-band antenna; 201. a second antenna dielectric plate; 202. a second antenna joint; 203. a second antenna reflector; 204. a second antenna exciter; 20401. a second microstrip transmission line; 20402. a second feed-through; 20403. a first dipole; 20404. a second L-shaped choke branch; 205. a second antenna director; 3. WIFI dual antenna; 301. a WIFI low-frequency antenna; 30101. a third antenna dielectric plate; 30102. a third antenna joint; 30103. a third antenna reflector; 30104. a third antenna exciter; 3010401, third microstrip transmission line; 3010402, third feed-through; 3010403, second dipoles; 3010404, third L-shaped choke branch; 30105. a third antenna director; 302. a WIFI high-frequency antenna; 30201. a first antenna unit; 3020101, fourth antenna reflector; 3020102, fourth antenna exciter; 302010201, fourth microstrip transmission line; 302010202, fourth feed-through; 302010203, third dipoles; 302010204, fourth L-shaped choke branch; 3020103, fourth antenna director; 30202. a second antenna unit; 30203. a microstrip combiner; 30204. a fourth antenna joint; 4. and an insulating column.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Example 1

Referring to fig. 1-9, including SUB1G frequency band antenna 1, its characterized in that, SUB1G frequency band antenna 1's top is equipped with L frequency band antenna 2, and L frequency band antenna 2's top is equipped with the dual-antenna 3 of WIFI, wherein keeps apart fixedly through insulating column 4 between SUB1G frequency band antenna 1 and L frequency band antenna 2 and the dual-antenna 3 of WIFI, SUB1G frequency band antenna 1 and L frequency band antenna 2 and the dual-antenna 3 of WIFI are located integrated device's bottom, intermediate level and top layer respectively.

Example two

Referring to fig. 1 to 9, the subs 1g band antenna 1 includes a first antenna dielectric plate 101, a first antenna joint 102, a first antenna reflector 103, a first antenna exciter 104, and a first antenna director 105, and the first antenna dielectric plate 101, the first antenna joint 102, the first antenna reflector 103, the first antenna exciter 104, and the first antenna director 105 are fixedly connected in sequence.

Example III

Referring to fig. 1-9, the first antenna exciter 104 includes a first microstrip transmission line 10401, a first feed via 10402, a bow-tie-type dipole 10403, and a first L-type choke branch 10404, and the first antenna exciter 104 includes a first microstrip transmission line 10401, a first feed via 10402, a bow-tie-type dipole 10403, and a first L-type choke branch 10404 that are sequentially and fixedly connected to each other.

Example IV

Referring to fig. 1 to 9, the l-band antenna 2 includes a second antenna dielectric plate 201, a second antenna joint 202, a second antenna reflector 203, a second antenna exciter 204, and a second antenna director 205, and the second antenna dielectric plate 201, the second antenna joint 202, the second antenna reflector 203, the second antenna exciter 204, and the second antenna director 205 are sequentially and fixedly connected.

Example five

Referring to fig. 1-9, the second antenna exciter 204 includes a second microstrip transmission line 20401, a second feed via 20402, a first dipole 20403, and a second L-shaped choke branch 20404, where the second microstrip transmission line 20401, the second feed via 20402, the first dipole 20403, and the second L-shaped choke branch 20404 are fixedly connected in sequence.

Example six

Referring to fig. 1-9, WIFI dual antenna 3 includes a WIFI low frequency antenna 301 and a WIFI high frequency antenna 302, wherein WIFI low frequency antenna 301 includes a third antenna dielectric plate 30101, a third antenna connector 30102, a third antenna reflector 30103, a third antenna exciter 30104, a third antenna director 30105, and third antenna dielectric plate 30101, third antenna connector 30102, third antenna reflector 30103, third antenna exciter 30104, third antenna director 30105 are fixedly connected in sequence, and third antenna exciter 30104 includes a third microstrip transmission line 3010401, a third feed via 3010402, a second dipole 3010403, a third L-shaped choke 3010404, wherein third microstrip transmission line 3010401, third feed via 3010402, second dipole 3010403, and third L-shaped choke 3010404 are fixedly connected in sequence.

Example seven

Referring to fig. 1-9, the wifi high frequency antenna 302 includes a first antenna unit 30201, a second antenna unit 30202, a microstrip combiner 30203, and a fourth antenna joint 30204, where the first antenna unit 30201, the second antenna unit 30202, the microstrip combiner 30203, and the fourth antenna joint 30204 are sequentially and fixedly connected, the first antenna unit 30201 includes a fourth antenna reflector 3020101, a fourth antenna exciter 3020102, and a fourth antenna director 3020103, where the fourth antenna exciter 3020102 includes a fourth microstrip transmission line 302010201, a fourth feed via 302010202, a third dipole 302010203, and a fourth L-shaped choke branch 302010204, where the fourth microstrip transmission line 302010201, the fourth feed via 302010202, the third dipole 302010203, and the fourth L-shaped choke branch 302010204 are sequentially and fixedly connected, and the first antenna unit 30201 has the same structure as the second antenna unit 30202.

To sum up:

the first antenna reflector 103, the first antenna connector ground terminal 102, the ground of the first microstrip transmission line 10401 are connected, and the first antenna connector 102 is connected with the microstrip line of the first microstrip transmission line 10401 through a via hole.

One side vibrator of the bow-tie type dipole 10403 is connected with the ground of the first microstrip transmission line 10401, the other side vibrator is connected with the microstrip line of the first microstrip transmission line 10401 at the bottom layer of the dielectric plate through a first feed via 10402, the first feed via 10402 is simultaneously connected with a first L-shaped choke branch, and the other end of the first L-shaped choke branch 10404 is connected with the ground of the first microstrip transmission 10401.

The 2L frequency band antenna 2 is processed by adopting a printed circuit process, and the second antenna reflection 203 and the second antenna director 205 are arranged on the top layer of the second antenna dielectric plate 201.

The second antenna reflector 203 is connected to the ground of the second microstrip transmission line 20401 and the ground of the second antenna joint 202, and the second antenna joint 202 is connected to the microstrip line of the second microstrip transmission line 20401 through a via.

One side vibrator of the first dipole 20403 is connected with the ground of the second microstrip transmission line 20401, the other side vibrator is connected with the microstrip line of the second microstrip transmission line 20401 at the bottom layer of the dielectric plate through a second feed via 20402, the second feed via 20402 is simultaneously connected with a second L-shaped choke branch 20404, and the other end of the second L-shaped choke branch 20404 is connected with the ground of the second microstrip transmission 20401.

The WIFI low frequency antenna 301 is processed by a printed circuit process, and the third antenna reflector 30103 and the third antenna director 30105 are on the top layer of the third antenna medium plate 30101.

The third antenna reflector 30103 is connected to a third ground terminal of the third antenna connector 30102 and a ground surface of the third microstrip transmission line 3010401, and the third antenna connector 30102 is connected to a microstrip line of the third microstrip transmission line 3010401 via a via.

One side vibrator of the second dipole 3010403 is connected with the ground of the third microstrip transmission line 3010401, the other side vibrator is connected with the microstrip line of the third microstrip transmission line 3010401 at the bottom layer of the dielectric plate through a third feed via hole 3010402, the third feed via hole 3010402 is simultaneously connected with a third L-shaped choke branch 3010404, and the other end of the third L-shaped choke branch 3010404 is connected with the ground of the third microstrip transmission 3010401.

The WIFI high frequency antenna 302 is an in-phase constant amplitude unit antenna array, and is processed by adopting a printed circuit technology, wherein two ends of a third microstrip combiner 30203 are connected with the first antenna unit 30201 and the second antenna unit 30202, and a combining end of the third microstrip combiner 30203 is connected with a third antenna joint 30204 through a via hole, wherein a fourth antenna reflector 3020101, a third dipole 302010203, and a fourth antenna director 3020103 are arranged at a bottom layer of the third antenna dielectric plate 30101.

The fourth antenna reflector 3020101 is connected to the ground of the fourth microstrip transmission line 302010301, one side of the third dipole 302010203 is connected to the ground of the fourth microstrip transmission line 302010201, the other side of the third dipole 302010203 is connected to the microstrip line of the fourth microstrip transmission line 302010201 on the bottom layer of the dielectric plate through the fourth feed via 302010202, the fourth feed via 302010202 is simultaneously connected to the fourth L-shaped choke branch 302010204, and the other end of the fourth L-shaped choke branch 302010204 is connected to the fourth microstrip transmission line 302010201.

In the WIFI double-antenna design of the middle layer, the four-antenna integrated device creatively adopts the structure of symmetrical double-unit antenna array and single antenna integration, so that the symmetrical design can effectively eliminate the scattering current which is generated by mutual coupling of the antennas and has worsening influence on the directivity of the antennas, and the directional consistency of double-antenna beams is ensured.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a four antenna integrated device, includes SUB1G frequency channel antenna (1), its characterized in that, the top of SUB1G frequency channel antenna (1) is equipped with L frequency channel antenna (2), and the top of L frequency channel antenna (2) is equipped with WIFI dual antenna (3), wherein keeps apart fixedly through insulating column (4) between SUB1G frequency channel antenna (1) and L frequency channel antenna (2) and the WIFI dual antenna (3), SUB1G frequency channel antenna (1) and L frequency channel antenna (2) and the WIFI dual antenna (3) are located integrated device's bottom, intermediate level and top layer respectively.

2. The four-antenna integrated device according to claim 1, wherein the SUB1G band antenna (1) comprises a first antenna dielectric plate (101), a first antenna joint (102), a first antenna reflector (103), a first antenna exciter (104) and a first antenna director (105), and the first antenna dielectric plate (101), the first antenna joint (102), the first antenna reflector (103), the first antenna exciter (104) and the first antenna director (105) are fixedly connected in sequence.

3. The four-antenna integrated device according to claim 2, wherein the first antenna exciter (104) comprises a first microstrip transmission line (10401), a first feed via (10402), a bowtie-type dipole (10403), and a first L-type choke branch (10404), and the first antenna exciter (104) comprises a first microstrip transmission line (10401), a first feed via (10402), a bowtie-type dipole (10403), and a first L-type choke branch (10404) fixedly connected in sequence.

4. The four-antenna integrated device according to claim 1, wherein the L-band antenna (2) comprises a second antenna dielectric plate (201), a second antenna joint (202), a second antenna reflector (203), a second antenna exciter (204), and a second antenna director (205), and the second antenna dielectric plate (201), the second antenna joint (202), the second antenna reflector (203), the second antenna exciter (204), and the second antenna director (205) are sequentially and fixedly connected.

5. The four-antenna integrated device according to claim 4, wherein the second antenna exciter (204) comprises a second microstrip transmission line (20401), a second feed via (20402), a first dipole (20403), a second L-shaped choke (20404), and the second microstrip transmission line (20401), the second feed via (20402), the first dipole (20403), and the second L-shaped choke (20404) are fixedly connected in sequence.

6. The four-antenna integrated device according to claim 1, wherein the WIFI dual antenna (3) comprises a WIFI low frequency antenna (301) and a WIFI high frequency antenna (302), wherein the WIFI low frequency antenna (301) comprises a third antenna dielectric plate (30101), a third antenna connector (30102), a third antenna reflector (30103), a third antenna exciter (30104), a third antenna director (30105), and the third antenna dielectric plate (30101), the third antenna connector (30102), the third antenna reflector (30103), the third antenna exciter (30104), and the third antenna director (30105) are fixedly connected in sequence, and the third antenna exciter (30104) comprises a third microstrip transmission line (3010401), a third feed via (3010402), a second dipole (3010403), a third L-shaped choke (3010404), wherein the third microstrip transmission line (3010401), the third feed via (3010402), the second dipole (3010403), and the third L-shaped choke (3010404) are fixedly connected in sequence.

7. The four-antenna integrated device according to claim 6, wherein the WIFI high frequency antenna (302) comprises a first antenna unit (30201), a second antenna unit (30202), a microstrip combiner (30203), and a fourth antenna joint (30204), wherein the first antenna unit (30201), the second antenna unit (30202), the microstrip combiner (30203), and the fourth antenna joint (30204) are sequentially and fixedly connected, the first antenna unit (30201) comprises a fourth antenna reflector (3020101), a fourth antenna exciter (3020102), and a fourth antenna director (3020103), wherein the fourth antenna exciter (3020102) comprises a fourth microstrip transmission line (302010201), a fourth feed via (302010202), a third dipole (302010203), and a fourth L-shaped choke (302010204), wherein the fourth microstrip transmission line (302010201), the fourth feed via (302010202), the third dipole (302010203), and the fourth L-shaped choke (302010204) are sequentially and fixedly connected, and the first antenna unit (30201) has the same antenna structure as the second antenna unit (30202).