CN220358334U

CN220358334U - Antenna array and communication equipment of wide-angle scanning

Info

Publication number: CN220358334U
Application number: CN202321770536.2U
Authority: CN
Inventors: 赵伟; 谢昱乾
Original assignee: Shenzhen Sunway Communication Co Ltd
Current assignee: Shenzhen Sunway Communication Co Ltd
Priority date: 2023-07-06
Filing date: 2023-07-06
Publication date: 2024-01-16
Anticipated expiration: 2033-07-06

Abstract

The utility model provides a large-angle scanning antenna array and communication equipment, the large-angle scanning antenna array comprises a dielectric plate, a metal plate attached to a first surface of the dielectric plate, a plurality of wide beam antenna units mounted on the metal plate and a plurality of feeder lines mounted on a second surface of the dielectric plate, wherein the metal plate is provided with a plurality of feeder slots, the wide beam antenna units comprise a dielectric resonator, two fixing plates and two magnetic dipoles, the dielectric resonator is mounted on the feeder slots, the two fixing plates are respectively mounted on the metal plate and are arranged on two sides of the dielectric resonator, the two magnetic dipoles are respectively mounted on opposite surfaces of the two fixing plates, and first ends of the plurality of feeder lines are respectively arranged below the dielectric resonator.

Description

Antenna array and communication equipment of wide-angle scanning

Technical Field

The present utility model relates to the field of antennas, and in particular, to a large-angle scanning antenna array and a communication device.

Background

The 5G millimeter wave module has the advantages that the radio frequency system loss is reduced in an AIP (package antenna) mode by combining a radio frequency chip and a substrate antenna, the integration level is higher, the performance is better, and electronic scanning is performed to achieve high space coverage, so that the antenna array is required to be designed at a large scanning angle. There are 2 general categories of methods for general large scan angle design: the wideband impedance transformer and the wideband angular scanning matching layer. These type 2 methods typically result in complex wide structures or loading of additional external dielectric/metal structures.

For the array antenna with large-angle scanning, the unit pattern is also a very important factor, and the scanning angle range of the existing array antenna is smaller, as shown in fig. 8, so in order to cope with the requirement of the array antenna with large-angle scanning in special scenes, an array antenna with a larger scanning angle range is needed.

Disclosure of Invention

The main object of the present utility model is to provide an antenna array and a communication device for large angle scanning, which solve the above-mentioned technical problems.

The utility model provides an antenna array with a large angle scanning function, which comprises a dielectric plate, a metal plate attached to the first surface of the dielectric plate, a plurality of wide beam antenna units mounted on the metal plate and a plurality of feeder lines mounted on the second surface of the dielectric plate, wherein the metal plate is provided with a plurality of feeder slots, the wide beam antenna units comprise a dielectric resonator, two fixing plates and two magnetic dipoles, the dielectric resonator is mounted on the feeder slots, the two fixing plates are respectively mounted on the metal plate and are arranged on two sides of the dielectric resonator, the two magnetic dipoles are respectively correspondingly mounted on opposite surfaces of the two fixing plates, and the first ends of the feeder lines are respectively arranged below the dielectric resonator.

Preferably, the magnetic dipole comprises a first rectangular metal frame and a second rectangular metal frame which are spliced in parallel, and the length of the first rectangular metal frame is greater than that of the second rectangular metal frame.

Preferably, the dielectric resonator has a rectangular parallelepiped structure.

Preferably, the width of the first rectangular metal frame, the width of the second rectangular metal frame and the width of the dielectric resonator are the same.

Preferably, a plurality of mounting holes are formed in the dielectric plate, a plurality of through holes are formed in the metal plate corresponding to the mounting holes, a plugboard is arranged on the fixing plate, the fixing plate sequentially penetrates through the through holes and the mounting holes to be fixed on the metal plate through the plugboard, and the number of the mounting holes, the number of the through holes and the number of the fixing plates are the same.

Preferably, clamping plates are provided on both sides of the fixing plate, wherein when the fixing plate is fixed on the metal plate, the two clamping plates clamp the metal plate therein.

Preferably, the distance between the two fixing plates is 22.4mm.

Preferably, the spacing between a plurality of the wide beam antenna elements is 26mm.

Preferably, the number of the wide beam antenna elements is 8.

The present utility model provides in a second aspect a communications device comprising a large angle scanning antenna array of any of the aspects described above.

The utility model has the beneficial effects that: the utility model provides an antenna array and communications facilities of wide-angle scanning, this antenna array of wide-angle scanning include the dielectric plate, attach in the metal sheet on the first surface of dielectric plate, install in a plurality of wide beam antenna unit and a plurality of install in on the second surface of dielectric plate, be equipped with a plurality of feed gap on the metal sheet, wide beam antenna unit includes dielectric resonator, two fixed plates and two magnetic dipoles, dielectric resonator install in on the feed gap, two the fixed plate is installed respectively on the metal sheet and is put in the both sides of dielectric resonator, two magnetic dipoles correspond respectively and install on the opposite sides of two fixed plates, a plurality of first ends of feed line set up respectively in the below of dielectric resonator, solve the problem that the scanning angle is little appears in the dielectric resonator after the group array to this antenna array of wide-angle scanning realizes positive negative 80 wide-angle range scanning.

Drawings

FIG. 1 is a schematic diagram of a first embodiment of the present utility model;

FIG. 2 is an exploded view of an embodiment of the present utility model;

FIG. 3 is a second schematic diagram of an embodiment of the present utility model;

FIG. 4 is a second schematic structural diagram of an embodiment of the present utility model;

FIG. 5 is an exploded view of a dielectric plate and a metal plate according to an embodiment of the present utility model;

FIG. 6 is a graph showing the alignment of the E-plane with or without a loaded magnetic dipole according to an embodiment of the present utility model;

FIG. 7 is a graph showing the alignment of H-plane with or without a loaded magnetic dipole according to the embodiment of the present utility model;

fig. 8 is a normalized scan pattern of an antenna after conventional DRA array;

FIG. 9 is a normalized scan pattern for an embodiment of the present utility model.

The reference numbers in the figures are as follows:

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs.

The terms "first," "second," and the like in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present in front of "comprising" or "comprising" are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In this embodiment, referring to fig. 1 to 9, the antenna array with a large angle scan according to the first aspect of the present utility model includes a dielectric plate 100, a metal plate 200 attached to a first surface 101 of the dielectric plate 100, a plurality of wide beam antenna units 300 mounted on the metal plate 200, and a plurality of feeding lines 400 mounted on a first surface 102 of the dielectric plate 100, a plurality of feeding slots 201 are disposed on the metal plate 200, the wide beam antenna units 300 include a dielectric resonator 301, two fixing plates 302 and two magnetic dipoles 303, the dielectric resonator 301 is mounted on the feeding slots 201, the two fixing plates 302 are respectively mounted on the metal plate 200 and are disposed on two sides of the dielectric resonator 301, the two magnetic dipoles 303 are respectively correspondingly mounted on opposite surfaces of the two fixing plates 302, and first ends of the plurality of feeding lines 400 are respectively disposed below the dielectric resonator 301.

Specifically, a plurality of wide beam antenna units 300 are disposed on the metal plate 200 to generate wide angle scanning performance, and two magnetic dipoles 303 are disposed on two sides of the dielectric resonator 301, so that the beam can be expanded under the fundamental mode TE111, where the dielectric resonator 301 in this embodiment is in the higher order mode TE113 mode, and the higher order mode TE113 can be regarded as a superposition of 2 TE111 mode dielectric resonators, so that two magnetic dipoles 303 are required as magnetic current sources to affect the wide beam pattern.

Further, the magnetic dipole 303 includes a first rectangular metal frame 3031 and a second rectangular metal frame 3032 that are disposed in parallel and spliced, and the length of the first rectangular metal frame 3031 is greater than the length of the second rectangular metal frame 3032. The dielectric resonator 301 has a rectangular parallelepiped structure.

Further, the width of the first rectangular metal frame 3031, the width of the second rectangular metal frame 3032, and the width of the dielectric resonator 301 are the same. The dielectric plate 100 is provided with a plurality of mounting holes 103, the metal plate 200 is provided with a plurality of through holes 202 corresponding to the plurality of mounting holes 103, the fixed plate 302 is provided with a plugboard 3021, and the fixed plate 302 sequentially passes through the through holes 202 and the mounting holes 103 through the plugboard 3021 to be fixed on the metal plate 200, wherein the number of the mounting holes 103, the number of the through holes 202 and the number of the fixed plate 302 are the same. Further, the fixing plate 302 is provided with the clamping plates 3022 on both sides, wherein the two clamping plates 3022 clamp the metal plate 200 therein when the fixing plate 302 is fixed to the metal plate 200.

In the first embodiment, the wide beam antenna unit 300 is loaded with no magnetic dipole;

in the second embodiment, the wide beam antenna unit 300 is loaded with a magnetic dipole;

as shown in fig. 6 and 7, the E-plane and H-plane of the large angle scanned antenna array exhibit a beam width that is greater than that of an unloaded magnetic dipole in the normalized pattern with the loaded magnetic dipole.

Further, the interval a between the two fixing plates 302 is 22.4mm, and the interval b between the plurality of wide beam antenna elements 300 is 26mm. The number of wide beam antenna elements 300 is 8.

A second aspect of the utility model provides a communication device comprising a large angle scanning antenna array of any of the aspects described above.

The foregoing is merely exemplary of the utility model, and it should be noted that modifications could be made by those skilled in the art without departing from the inventive concept, which fall within the scope of the utility model.

Claims

1. An antenna array for high angle scanning, comprising:

a dielectric plate;

a metal plate attached to the first surface of the dielectric plate, wherein a plurality of feed gaps are formed in the metal plate;

the wide beam antenna units comprise a dielectric resonator, two fixing plates and two magnetic dipoles, wherein the dielectric resonator is arranged on the feed gap, the two fixing plates are respectively arranged on the metal plate and are arranged on two sides of the dielectric resonator, and the two magnetic dipoles are respectively correspondingly arranged on opposite surfaces of the two fixing plates;

and the first ends of the feed lines are respectively arranged below the dielectric resonator.

2. The high angle scanning antenna array of claim 1, wherein the magnetic dipole comprises a first rectangular metal frame and a second rectangular metal frame arranged in parallel and spliced, the length of the first rectangular metal frame being greater than the length of the second rectangular metal frame.

3. The high angle scanning antenna array of claim 2, wherein the dielectric resonator is a cuboid structure.

4. The high angle scanning antenna array of claim 3, wherein the width of the first rectangular metal frame, the width of the second rectangular metal frame, and the width of the dielectric resonator are the same.

5. The large-angle scanning antenna array according to claim 1, wherein a plurality of mounting holes are formed in the dielectric plate, a plurality of through holes are formed in the metal plate corresponding to the plurality of mounting holes, a plugboard is arranged on the fixing plate, and the fixing plate sequentially penetrates through the through holes and the mounting holes through the plugboard to be fixed on the metal plate, wherein the number of the mounting holes, the number of the through holes and the number of the fixing plates are the same.

6. The high angle scanning antenna array of claim 5, wherein clamping plates are provided on both sides of the fixing plate, wherein both clamping plates clamp the metal plate therein when the fixing plate is fixed to the metal plate.

7. The high angle scanning antenna array of claim 1, wherein a spacing between two of said fixed plates is 22.4mm.

8. The high angle scanning antenna array of claim 1, wherein a spacing between a plurality of said wide beam antenna elements is 26mm.

9. The high angle scanning antenna array of claim 1, wherein the number of wide beam antenna elements is 8.

10. A communication device comprising a large angle scanning antenna array according to any of claims 1-9.