CN219591660U - Antenna, antenna array and communication equipment - Google Patents

Abstract

The embodiment of the utility model relates to the technical field of communication and discloses an antenna, an antenna array and communication equipment, wherein the antenna comprises a dielectric substrate, a dielectric resonator, an antenna assembly and a feed structure; the dielectric substrate is provided with a groove, and the dielectric resonator is accommodated in the groove; the antenna assembly comprises a first antenna, a second antenna, a third antenna and a fourth antenna, wherein the first antenna, the second antenna, the third antenna and the fourth antenna enclose to form a rectangle, and the antenna assembly encloses the dielectric resonator; the feed structure is arranged on the second surface, the feed structure comprises a first feed line and a second feed line, the first feed line encloses to form a cavity, the rectangle is provided with an opening, the second feed line extends from the opening to the cavity, and the second feed line is perpendicular to the medium substrate. By the mode, the embodiment of the utility model can realize double-frequency resonance and ensure wider bandwidth.

Description

Antenna, antenna array and communication equipment

Technical Field

The embodiment of the utility model relates to the field of wireless communication, in particular to an antenna, an antenna array and communication equipment.

Background

Along with the development of communication technology, the design of millimeter wave antenna is being studied by more and more students, but a single millimeter wave antenna unit cannot meet the requirements of mobile communication, and in general, a multi-frequency microstrip patch antenna is preferred by most designers because of its advantages of simple structure, clear principle, acceptable performance and the like. However, the disadvantages of the complex dielectric substrate lamination structure, non-integrated dual-frequency implementation mode and the like are required, and the method provides challenges for the application of the current 5G millimeter wave dual-frequency antenna.

The inventors of the embodiments of the present utility model found that, in the process of implementing the embodiments of the present utility model: the fabrication of millimeter wave dual-band antennas requires the use of a single radiator to generate dual-band with two radiation modes or the use of two antennas (e.g., dual slot antenna, stacked patch antenna, dual Quarter Mode SIW (QMSIW) antenna, and dual microstrip antenna) to cover two frequency bands, but both have the problem of narrow broadband.

Disclosure of Invention

The technical problem to be solved by the embodiment of the utility model is to provide an antenna, wherein a dielectric resonator is arranged in a dielectric substrate, an antenna component encloses the dielectric resonator, and the dielectric resonator is coupled with the antenna component and a gap of the dielectric substrate, so that double-frequency resonance is realized, and a wider bandwidth is ensured.

In order to solve the technical problems, one technical scheme adopted by the embodiment of the utility model is as follows: an antenna is provided, comprising a dielectric substrate, a dielectric resonator, an antenna assembly and a feed structure; the dielectric substrate is provided with a groove, and further comprises a first surface and a second surface which are oppositely arranged; the dielectric resonator is accommodated in the groove; the antenna assembly comprises a first antenna, a second antenna, a third antenna and a fourth antenna, wherein the first antenna, the second antenna, the third antenna and the fourth antenna enclose to form a rectangle, and the antenna assembly encloses the dielectric resonator; the feed structure is arranged on the second surface, the feed structure comprises a first feed line and a second feed line, the first feed line encloses to form a cavity, the rectangle is provided with an opening, the second feed line extends from the opening to the cavity, and the second feed line is perpendicular to the medium substrate.

Optionally, one end of the first antenna is spaced 0.6mm from one end of the second antenna; and/or the other end of the first antenna is spaced 0.3mm from one end of the third antenna; and/or the other end of the second antenna is spaced 0.3mm from one end of the fourth antenna; and/or, the other end of the third antenna is spaced from the other end of the fourth antenna by 0.6mm.

Optionally, the dielectric resonator has a dielectric constant of 45.

Optionally, the dielectric substrate includes a first dielectric layer, a second dielectric layer, a third dielectric layer and a fourth dielectric layer, the first dielectric layer, the second metal layer, the third metal layer and the fourth metal layer are stacked, the groove is communicated with the first dielectric layer and the second dielectric layer, the antenna structure is arranged on the first dielectric layer, and the dielectric resonator is arranged on the second dielectric layer.

Optionally, the feeding structure further includes a first slot, a second slot, a third slot and a fourth slot, one end of the first slot is vertical and communicated with the second slot, one end of the third slot is vertical and communicated with the fourth slot, the other end of the first slot and the other end of the second slot are arranged at intervals relatively, and the interval between the second slot and the fourth slot is 2.95mm.

Optionally, the antenna further includes a metal piece, and the metal piece is disposed with the third dielectric layer.

Optionally, the dielectric substrate further includes a plurality of isolation columns, the third dielectric layer is provided with a plurality of first through holes, the metal piece is provided with a plurality of second through holes, one end of each isolation column passes through one of the first through holes and one of the second through holes to be abutted against the second dielectric layer, and the other end of each isolation column passes through one of the first through holes and the second through holes to be abutted against the fourth dielectric layer.

In order to solve the technical problems, another technical scheme adopted by the embodiment of the utility model is as follows: there is provided an antenna array comprising an antenna as claimed in any one of the preceding claims.

Optionally, the distance between any two adjacent antennas is 0.45 lambda.

In order to solve the above technical problems, a further technical solution adopted by the embodiment of the present utility model is: there is provided a communication device comprising an antenna array as described above.

The embodiment of the utility model provides an antenna, which comprises a dielectric substrate, a dielectric resonator, an antenna component and a feed structure; the dielectric substrate is provided with a groove, and further comprises a first surface and a second surface which are oppositely arranged; the dielectric resonator is accommodated in the groove; the antenna assembly comprises a first antenna, a second antenna, a third antenna and a fourth antenna, wherein the first antenna, the second antenna, the third antenna and the fourth antenna enclose to form a rectangle, and the antenna assembly encloses the dielectric resonator; the feed structure set up in the second surface, through setting up the dielectric resonator in the dielectric substrate recess, antenna assembly encloses the dielectric resonator, can realize down-regulating the resonance point of antenna, the dielectric resonator can react to antenna assembly for the antenna can produce new radiation, realizes dual-frenquency resonance, and has the characteristics of high broadband.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.

Fig. 1 is a schematic structural diagram of an antenna according to an embodiment of the present utility model;

fig. 2 is a schematic view of another angle structure of an antenna according to an embodiment of the present utility model;

fig. 3 is an exploded view of an antenna according to an embodiment of the present utility model;

fig. 4 is another angular exploded view of an antenna according to an embodiment of the present utility model;

fig. 5 is a schematic diagram of a feed structure of an antenna according to an embodiment of the present utility model;

fig. 6 is a schematic diagram of an antenna assembly of an antenna according to an embodiment of the present utility model;

fig. 7 is a schematic diagram of the effect of the antenna according to the embodiment of the present utility model;

fig. 8 is a schematic diagram of an antenna array structure according to an embodiment of the present utility model;

fig. 9 is a schematic diagram of another angle structure of an antenna array according to an embodiment of the present utility model;

fig. 10 is an analysis chart of effects achieved by the antenna array according to the embodiment of the present utility model;

FIG. 11 is a further analysis of the effect achieved by the antenna array provided by the embodiments of the present utility model;

fig. 12 is a further analysis chart of the effect achieved by the antenna array according to the embodiment of the present utility model.

Reference numerals: 100. an antenna; 10. a dielectric substrate; 101. a groove; 102. a first surface; 103. a second surface; 104. a first dielectric layer; 105. a second dielectric layer; 106. a third dielectric layer; 161. a first through hole; 107. a fourth dielectric layer; 108. a separation column; 20. a dielectric resonator; 30. an antenna assembly; 301. a first antenna; 311. a first branch; 302. a second antenna; 321. a second branch; 303. a third antenna; 331. a third branch; 304. a fourth antenna; 341. a fourth branch; 40. a feed structure, 401, a first feed line; 402. a second feeder line; 403. a cavity; 431. an opening; 501. a first slit; 502. a second slit, 503, a third slit; 504. a fourth slit; 60. a metal piece; 601. a second through hole; 200. an antenna array.

Detailed Description

In order that the utility model may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "upper," "lower," "inner," "outer," "vertical," "horizontal," and the like as used in this specification, refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.

In addition, the technical features mentioned in the different embodiments of the utility model described below can be combined with one another as long as they do not conflict with one another.

Referring to fig. 1 to 3, the antenna 100 includes: a dielectric substrate 10, a dielectric resonator 20, an antenna assembly 30 and a feed structure 40; the dielectric resonator 20 is provided with a groove 101, and the dielectric resonator 20 is accommodated in the groove 101; the antenna assembly 30 encloses the dielectric resonator 20 to achieve the purpose of widening the bandwidth of the dielectric resonator 20, the feed structure 40 is disposed on the dielectric substrate 10, and the dielectric resonance is disposed in the dielectric substrate 10 to enable the antenna 100 to have a smaller size, thereby achieving the characteristics of miniaturization, compact structure and low profile of the antenna 100.

In the embodiment of the present utility model, the dielectric constant of the dielectric resonator 20 is 45.

With continued reference to fig. 3 and fig. 4, the dielectric substrate 10 includes a first surface 102, a second surface 103, a first dielectric layer 104, a third dielectric layer 106, and a fourth dielectric layer 107, where the first dielectric layer 104, the second metal layer, the third metal layer, and the fourth metal layer are stacked, the groove 101 communicates with the first dielectric layer 104 and the second dielectric layer 105, the antenna assembly 30 is disposed on the first dielectric layer 104, and the dielectric resonator 20 is disposed on the second dielectric layer 105. The dielectric substrate 10 further includes a plurality of isolation pillars 108, the antenna 100 further includes a metal member 60, the metal member 60 is disposed on the third dielectric layer 106, the third dielectric layer 106 is provided with a plurality of first through holes 161, the metal member 60 is provided with a plurality of second through holes 601, one end of one isolation pillar 108 passes through one of the first through holes 161 and one of the second through holes 601 to abut against the second dielectric layer 105, the other end of one isolation pillar 108 passes through one of the first through holes 161 and the second through holes 601 to abut against the fourth dielectric layer 107, the metal member 60 can inhibit energy leakage when the antenna 100 is fed, and the other end of one isolation pillar 108 passes through one of the first through holes 161 and the second through holes 601 to abut against the second dielectric layer 105 and the fourth dielectric layer 107, so that the dielectric substrate 10 is firmer.

With continued reference to fig. 1 and 6, the antenna assembly 30 includes a first antenna 301, a second antenna 302, a third antenna 303 and a fourth antenna 304, where the first antenna 301, the second antenna 302, the third antenna 303 and the fourth antenna 304 enclose a rectangle, and the antenna assembly 30 encloses the dielectric resonator 20, and the antenna assembly 30 is a hybrid antenna formed by mixing three antennas of a metal strip microstrip, and one end of the first antenna 301 and one end of the second antenna 302 are spaced by 0.6mm; and/or the other end of the first antenna 301 is spaced 0.3mm from one end of the third antenna 303; and/or the other end of the second antenna 302 is spaced 0.3mm from one end of the fourth antenna 304; and/or the other end of the third antenna 303 is spaced 0.6mm from the other end of the fourth antenna 304. In some implementations, the first antenna 301 is provided with a first branch 311, the second antenna 302 is provided with a second branch 321, the third antenna 303 is provided with a third branch 341, the fourth antenna 304 is provided with a fourth branch 504, the first branch 311 and the second branch 321 are spaced apart by 3.6mm, and the third branch 331 and the fourth branch 341 are spaced apart by 3.6 mm. Fig. 7 shows a resonance change after the antenna assembly 30 is loaded, and it can be found that after the antenna assembly 30 is loaded, the bandwidth of the dielectric resonator 20 is widened to cover the N260 frequency band, the radiation of the antenna assembly 30 generates a new resonance point at the 29GHZ antenna, and the antenna 100 can cover all frequency bands of N257 (26.5-29.5 GHZ), N258 (24.25-27.25 GHZ), N260 (37-40 GHZ), N261 (27.5-28.35 GHZ), and the current 5G.

With continued reference to fig. 5, the feeding structure 40 is disposed on the second surface 103, the feeding structure 40 includes a first feeding line 401 and a second feeding line 402, the first feeding line 401 encloses a cavity 403, the cavity 403 is provided with an opening 431, the second feeding line 402 extends from the opening 431 to the cavity 403, and the second feeding line is perpendicular to the dielectric substrate 10. The feed structure 40 enables energy transfer. In some embodiments, the first feed line is a strip microstrip antenna.

With continued reference to fig. 4, the feeding structure 40 further includes a first slot 501, a second slot 502, a third slot 503 and a fourth slot 504, where one end of the first slot 501 is vertical and connected to the second slot 502, one end of the third slot 503 is vertical and connected to the fourth slot 504, the other end of the first slot 501 is opposite to the other end of the second slot 502 with a spacing distance therebetween, and the second slot 502 is spaced from the fourth slot 504 by 2.95mm. The slot couples the dielectric resonator 20 and the slot radiates in the N257 frequency band, while the dielectric resonator 20 has 2 radiating modes TE111 and TE113, TE113 can lower the resonance point of TE113 mode by peripherally loading the antenna assembly 30, and the dielectric resonator 20 can also act as the feed structure 40, reacting against the antenna assembly 30 to generate new radiation at the 29GHz antenna element

Principle of the antenna assembly 30 for adjusting and controlling the resonance point of the dielectric resonator 20: since the dielectric resonator 20 of the TE113 mode also generates a radiation-enabled current in the metal member 60, the size of the dielectric resonator 20 increases, and the resonance frequency point is low.

The embodiment of the utility model provides an antenna 100, which comprises a dielectric substrate 10, a dielectric resonator 20, an antenna assembly 30 and a feed structure 40; the dielectric substrate 10 is provided with a groove 101, and the dielectric substrate 10 further comprises a first surface 102 and a second surface 103 which are oppositely arranged; the dielectric resonator 20 is accommodated in the groove 101; the antenna assembly 30 includes a first antenna 301, a second antenna 302, a third antenna 303, and a fourth antenna 304, the first antenna 301, the second antenna 302, the third antenna 303, and the fourth antenna 304 enclose a rectangle, and the antenna assembly 30 encloses the dielectric resonator 20; the feeding structure 40 is disposed on the second surface 103, the dielectric resonator 20 is disposed in the groove 101 of the dielectric substrate 10, the antenna assembly 30 encloses the dielectric resonator 20, so that the resonance point of the antenna can be adjusted downwards, the dielectric resonator 20 can react to the antenna assembly 30, so that the antenna can generate new radiation, dual-frequency resonance is realized, and the antenna has the characteristic of high broadband.

Referring to fig. 8 and 9, the embodiment of the present utility model further provides an antenna array 200, where the distance between any two adjacent antennas 100 is 0.45 λ. Fig. 10-11-12 show that the antenna 100 may be arranged at 0.45 wavelength, fig. 10 shows that the isolation of the characteristic antenna array is less than-18 dB over the entire frequency band, fig. 11 shows that the antenna 100 scans at 28 GHz-50 to +50 degrees, fig. 12 shows that the antenna 100 scans at 39 GHz-50 to +50 degrees, and fig. 11 and 12 together show that the antenna array formed by the antenna 100 has a large angle scan characteristic. The antenna array 200 of the present embodiment has the characteristics of good isolation and large-angle scanning.

The present utility model also provides a communication device, and the detailed description of the embodiments will be omitted herein with reference to the above-mentioned antenna 100 and antenna array 200. The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims (10)

1. An antenna, comprising:

the dielectric substrate is provided with a groove, and further comprises a first surface and a second surface which are oppositely arranged;

the dielectric resonator is accommodated in the groove;

an antenna assembly comprising a first antenna, a second antenna, a third antenna, and a fourth antenna, the first antenna, the second antenna, the third antenna, and the fourth antenna enclosing to form a rectangle, and the antenna assembly enclosing the dielectric resonator;

the feed structure, the feed structure set up in the second surface, the feed structure includes first feeder and second feeder, first feeder encloses and forms the cavity, the cavity is equipped with the opening, the second feeder follow the opening extends to the cavity, and, the second feeder is perpendicular to the dielectric substrate.

2. The antenna of claim 1, wherein the antenna is configured to transmit the antenna signal,

one end of the first antenna is spaced 0.6mm from one end of the second antenna; and/or the other end of the first antenna is spaced 0.3mm from one end of the third antenna; and/or the other end of the second antenna is spaced 0.3mm from one end of the fourth antenna; and/or, the other end of the third antenna is spaced from the other end of the fourth antenna by 0.6mm.

3. The antenna of claim 1, wherein the antenna is configured to transmit the antenna signal,

the dielectric resonator has a dielectric constant of 45.

4. The antenna of claim 1, wherein the antenna is configured to transmit the antenna signal,

the dielectric substrate comprises a first dielectric layer, a second dielectric layer, a third dielectric layer and a fourth dielectric layer, wherein the first dielectric layer, the second metal layer, the third metal layer and the fourth metal layer are arranged in a stacked mode, the grooves are communicated with the first dielectric layer and the second dielectric layer, the antenna assembly is arranged on the first dielectric layer, and the dielectric resonator is arranged on the second dielectric layer.

5. The antenna of claim 4, wherein the antenna is configured to transmit the antenna signal,

the feed structure further comprises a first gap, a second gap, a third gap and a fourth gap, one end of the first gap is vertical and communicated with the second gap, one end of the third gap is vertical and communicated with the fourth gap, the other end of the first gap is opposite to the other end of the second gap in interval distance, and the second gap is 2.95mm apart from the fourth gap.

6. The antenna of claim 5, wherein the antenna is configured to transmit the antenna signal,

the antenna further comprises a metal piece, and the metal piece is arranged with the third dielectric layer.

7. The antenna of claim 6, wherein the antenna is configured to transmit the antenna signal,

the dielectric substrate further comprises a plurality of isolation columns, the third dielectric layer is provided with a plurality of first through holes, the metal piece is provided with a plurality of second through holes, one end of each isolation column penetrates through one first through hole and one second through hole to be abutted against the second dielectric layer, and the other end of each isolation column penetrates through one first through hole and one second through hole to be abutted against the fourth dielectric layer.

8. An antenna array comprising an antenna according to any of claims 1-7.

9. The antenna array of claim 8, wherein the distance between any two adjacent antennas is 0.45 λ.

10. A communication device comprising an antenna array according to any of claims 8-9.