CN116130942A - Resonant antenna, communication device and method for manufacturing resonant antenna - Google Patents

Resonant antenna, communication device and method for manufacturing resonant antenna Download PDF

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Publication number
CN116130942A
CN116130942A CN202310265093.XA CN202310265093A CN116130942A CN 116130942 A CN116130942 A CN 116130942A CN 202310265093 A CN202310265093 A CN 202310265093A CN 116130942 A CN116130942 A CN 116130942A
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CN
China
Prior art keywords
dielectric
resonant antenna
bottom wall
resonators
side frame
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Pending
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CN202310265093.XA
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Chinese (zh)
Inventor
赵伟
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Shenzhen Sunway Communication Co Ltd
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Shenzhen Sunway Communication Co Ltd
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Priority to CN202310265093.XA priority Critical patent/CN116130942A/en
Publication of CN116130942A publication Critical patent/CN116130942A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/01—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the shape of the antenna or antenna system
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0485—Dielectric resonator antennas

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Abstract

The embodiment of the invention relates to the technical field of wireless communication, and discloses a resonant antenna, which comprises the following components: the dielectric substrate, a plurality of resonators and metal pieces; the shape of the dielectric resonator is semi-cylindrical, and the semi-circular section of the dielectric resonator comprises an upright plane, a cross section and an inclined section; the metal piece comprises a bottom wall and a side frame, one end of the side frame is arranged on the bottom wall, the vertical planes of the dielectric resonators are fixed on the side frame, and the bottom wall is arranged on the dielectric substrate so as to fix the dielectric resonators on the dielectric substrate. By the mode, the embodiment of the invention can enable the magnetic fields of the dielectric resonators to be overlapped, and is convenient for synthesizing the resonant antenna pattern.

Description

Resonant antenna, communication device and method for manufacturing resonant antenna
Technical Field
The embodiment of the invention relates to the field of wireless communication, in particular to a resonant antenna, communication equipment and a method for manufacturing the resonant antenna.
Background
The dielectric resonator antenna is a resonant antenna, the radiation part of the dielectric resonator antenna is made of dielectric materials, the surface of the dielectric resonator antenna is free from the influence of surface waves, the ohmic loss is extremely low, the antenna is ensured to have extremely high efficiency in high-frequency application, and the dielectric resonator has the advantages of high design freedom, easy excitation, various materials, convenient processing and the like, and is very suitable for the development direction of communication application, so that the wide-beam dielectric resonator antenna has very high practical value. The 5G antenna is typically a dielectric resonant antenna, and in order to secure the effect of the antenna, 4 resonators are typically provided.
In the implementation process of the embodiment of the invention, the inventor finds that: currently, a 1*4 resonant design mode is generally adopted for a 5G antenna in the market, namely: the 4 discrete cylindrical dielectric resonators are mounted on the dielectric substrate, and the resonators are cylindrical and are limited by the action of the PCB ground and the vertical ground, and the beams of the respective resonators are inclined beams, as shown in fig. 1, so that the magnetic fields of the 4 resonators cannot be well overlapped, and the synthesis of the resonant antenna pattern is affected.
Disclosure of Invention
The technical problem to be solved by the embodiment of the invention is to provide the resonant antenna, the wave beam of the resonant antenna can be inclined by cutting off one corner of the dielectric resonator, the tangential directions of the dielectric resonators are inconsistent, the magnetic fields of the dielectric resonators can be overlapped, and the synthesis of the directional diagram of the resonant antenna is convenient.
In order to solve the technical problems, one technical scheme adopted by the embodiment of the invention is as follows: there is provided a resonant antenna comprising: the dielectric substrate, a plurality of resonators and metal pieces; the shape of the dielectric resonator is semi-cylindrical, and the semi-circular section of the dielectric resonator comprises an upright plane, a cross section and an inclined section; the metal piece comprises a bottom wall and a side frame, one end of the side frame is arranged on the bottom wall, the vertical planes of the dielectric resonators are fixed on the side frame, and the bottom wall is arranged on the dielectric substrate so as to fix the dielectric resonators on the dielectric substrate.
Optionally, the side frame includes a plurality of lateral walls, the one end of a plurality of lateral walls sets up in the diapire to a plurality of lateral walls connect end to end in proper order, one the vertical plane of dielectric resonator is connected in one the lateral wall.
Optionally, the number of the side walls and the dielectric resonators is four, the shape of the side frame is square, and the four dielectric resonators encircle the side frame.
Optionally, the dielectric substrate is provided with a plurality of openings; the resonant antenna further comprises a plurality of feed parts, wherein the feed parts are arranged on the surface of the dielectric substrate, which is away from the metal piece; the dielectric resonator is provided with a connecting part, and the connecting part of one dielectric resonator passes through one opening and then is connected with one feed part.
Optionally, the dielectric resonator has a dielectric constant of 21.
Optionally, the radius of the dielectric resonator is 2.8mm and/or the height of the dielectric resonator is 1.5mm.
In order to solve the technical problems, another technical scheme adopted by the embodiment of the invention is as follows: there is provided a communication device comprising a resonant antenna as described above.
In order to solve the above technical problems, another technical solution adopted by the embodiment of the present invention is: the method for manufacturing the resonant antenna comprises the steps of providing a dielectric substrate, a plurality of dielectric resonant elements and a metal piece, wherein the dielectric resonator is cylindrical in shape, the metal piece comprises a bottom wall and a side frame, and one end of the side frame is arranged on the bottom wall; cutting the dielectric resonance elements in half to obtain a plurality of secondary dielectric resonators, wherein the secondary dielectric resonators are semi-cylindrical in shape; cutting angles on semicircular sections of the secondary dielectric resonators to obtain a plurality of dielectric resonators, wherein the semicircular sections of the dielectric resonators comprise vertical planes and inclined planes, and the vertical planes of the dielectric resonators are connected with side frames of the metal pieces; and fixing the bottom wall of the metal piece on a dielectric substrate to obtain the resonant antenna.
Optionally, the dielectric substrate is provided with a plurality of openings, and the dielectric resonator is provided with a connecting part; the step of fixing the bottom wall of the metal piece to a dielectric substrate to obtain the resonant antenna further comprises the steps of: providing a plurality of feeding parts, and arranging the feeding parts on the surface of the dielectric substrate, which is away from the metal piece; fixing the bottom wall of the metal piece to a dielectric substrate, and resonating one dielectric respectivelyThe connecting part of the resonator is connected with one of the feeding parts to obtain the resonant antenna 。
Optionally, the step of fixing the bottom wall of the metal piece to a dielectric substrate further comprises the step of fixing the dielectric resonator to the dielectric substrate by bonding or welding.
The embodiment of the invention provides a resonant antenna, which comprises a dielectric substrate, a plurality of dielectric resonators and a metal piece, wherein the dielectric resonators are semi-cylindrical in shape, and semicircular sections of the dielectric resonators comprise vertical planes and inclined sections; the metal piece comprises a bottom wall and a side frame, one end of the side frame is arranged on the bottom wall, the vertical planes of the dielectric resonators are fixed on the side frame, the bottom wall is arranged on the dielectric substrate, the dielectric resonators are fixed on the dielectric substrate, the semicircular tangential planes of the dielectric resonators are made into horizontal and vertical planes and inclined tangential planes, the vertical planes of the dielectric resonators are fixed on the side frame of the metal piece, the inclined tangential planes of the dielectric resonators are not consistent in pointing direction, the magnetic fields of the dielectric resonators can be overlapped, and the antenna pattern synthesis is convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention 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 prior art schematic diagram of a resonant antenna according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a resonant antenna according to an embodiment of the present invention;
FIG. 3 is another schematic view of a resonant antenna according to an embodiment of the present invention;
fig. 4 is an exploded view of a resonant antenna according to an embodiment of the present invention;
FIG. 5 is an effect diagram of a resonant antenna according to an embodiment of the present invention;
fig. 6 is a flow chart of a method of fabricating a resonant antenna in accordance with an embodiment of the present invention;
fig. 7 is a further flowchart of the step S105 of fabricating a resonant antenna according to an embodiment of the present invention.
Description of the drawings: 100. a resonant antenna; 10. a dielectric substrate; 101. opening holes; 20. a dielectric resonator; 201. semicircular section; 211. erecting a tangential plane; 212. a bevel cut surface; 213. a cross section; 30. a metal piece; 301. a side frame; 321. a sidewall; 40. and a power feeding unit.
Detailed Description
In order that the invention 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 invention. 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 invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. 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 invention described below can be combined with one another as long as they do not conflict with one another.
Referring to fig. 2 to 4, the resonant antenna 100 includes: a dielectric substrate 10, a plurality of dielectric resonators 20, a metal member 30, and a plurality of power feeding sections 40; the shape of the dielectric resonators 20 is semi-cylindrical, the semi-circular section 201 of the dielectric resonator comprises an upright section 211, a cross section 213 and an inclined section 212, the upright plane of the dielectric resonators 20 is fixed on the metal piece 30, the feeding parts 40 are arranged on the surface of the dielectric substrate 10, which is away from the metal piece 30, the dielectric resonators 20 are provided with the inclined section 212, and the inclined section 212 can change the direction of the radiation beam of the resonant antenna 100, so that the magnetic fields of the dielectric resonators 20 are overlapped, and the alignment error of the directional diagram of the resonant antenna 100 is reduced. By cutting the dielectric resonator 20 into a semi-cylindrical shape, the volume of the dielectric resonator 20 can be reduced without affecting signal transmission and reception, thereby reducing the size of the entire resonant antenna 100. In some preferred embodiments, the resonant antenna 100 is of an integrated design and is compact.
In some preferred embodiments, the dielectric resonator 20 has a dielectric constant of 21. The radius of the dielectric resonator 20 is 2.8mm and/or the height of the dielectric resonator 20 is 1.5mm. By the above parameters, the resonant antenna 100 can be used for the 5G millimeter wave N2587 band
Referring to fig. 5, fig. 5 shows that the S parameter of the resonant antenna 100 of the present invention is 27GHz-32GHz, and substantially covers N257 (26.5 GHz-29.5 GHz) specified by 3 GPP.
With continued reference to fig. 4, the dielectric substrate 10 is provided with a plurality of openings 101; the dielectric resonator 20 is provided with a connection portion (not shown), and a connection portion (not shown) of the dielectric resonator 20 is connected to the feeding portion 40 after passing through the opening 101, and the dielectric resonator 20 and the feeding portion 40 form electrical signal transmission with the dielectric substrate 10.
With continued reference to fig. 4, the metal piece 30 further includes a bottom wall (not shown) and a side frame 301, one end of the side frame 301 is disposed on the bottom wall (not shown), the standing planes of the dielectric resonators 20 are fixed on the side frame 301, and the bottom wall (not shown) is disposed on the dielectric substrate 10 to fix the dielectric resonators 20 on the dielectric substrate 10. The side frame 301 includes a plurality of side walls 321, one ends of the side walls 321 are disposed on a bottom wall (not shown), the side walls 321 are sequentially connected end to end, and an upright plane of the dielectric resonator 20 is connected to one side wall 321. The vertical plane of the medium connection is plated with a metal layer, the metal piece 30 is a plastic rectangular structural piece with five metal plating surfaces, and the bottom of the metal piece 30 is welded with the metal layer of the medium substrate 10 and the vertical plane of the medium resonator 20 to finish alignment and fixation.
In some preferred embodiments, the number of the side walls 321 and the dielectric resonators 20 is four, the shape of the side frame 301 is square, and the four dielectric resonators 20 surround the side frame 301.
The embodiment of the invention provides a resonant antenna 100, which comprises a dielectric substrate 10, a plurality of dielectric resonators 20 and a metal piece 30, wherein the dielectric resonators 20 are semi-cylindrical in shape, and a semicircular section 201 of each dielectric resonator 20 comprises an upright plane and an inclined section 212; the metal piece 30 includes a bottom wall (not shown) and a side frame 301, one end of the side frame 301 is disposed on the bottom wall (not shown), the standing planes of the dielectric resonators 20 are fixed on the side frame 301, the bottom wall (not shown) is disposed on the dielectric substrate 10, so as to fix the dielectric resonators 20 on the dielectric substrate 10, the semicircular cut planes 201 of the dielectric resonators 20 are made into horizontal and vertical planes and inclined cut planes 212, and the standing planes of the dielectric resonators 20 are fixed on the side frame 301 of the metal piece 30, so that the directions of the inclined cut planes of the dielectric resonators 20 are not consistent, the magnetic fields of the dielectric resonators 20 can overlap, and the directional diagram of the resonant antenna 100 is convenient to synthesize.
The present application also provides a communication device comprising the resonant antenna 100 described above. For the specific structure and function of the antenna, reference may be made to the above embodiments, and details thereof are not repeated here.
The present application further provides an embodiment of a method for manufacturing a resonant antenna 100, referring to fig. 6, where the method for manufacturing a resonant antenna 100 is used to manufacture the resonant antenna 100, and the method for manufacturing a resonant antenna 100 includes:
step S101: providing a dielectric substrate 10, a plurality of dielectric resonance original elements and a metal piece 30, wherein the dielectric resonator 20 is cylindrical in shape, the metal piece 30 comprises a bottom wall (not shown) and a side frame 301, and one end of the side frame 301 is arranged on the bottom wall;
step S102: cutting the dielectric resonance elements in half to obtain a plurality of secondary dielectric resonators 20, wherein the secondary dielectric resonators 20 are semi-cylindrical in shape;
step S103: cutting the semicircular section 201 of the secondary dielectric resonator 20 to obtain a plurality of dielectric resonators 20, wherein the semicircular section 201 of the dielectric resonator 20 comprises an upright plane and an inclined plane;
if the conventional 2X2 resonant antenna 100 has the installation problem and the feed position alignment problem, four cylindrical resonant antennas 100 with a dielectric constant of 21, a radius of 2.8mm and a height of 1.5mm are obtained, according to the electromagnetic field mirror image principle, the cylindrical dielectric resonator 20 can be halved to obtain the semi-cylindrical dielectric resonator 20, and the resonant antennas 100 become oblique beams due to the actions of the dielectric substrate 10 and the vertical direction as shown in fig. 1, and the directional diagram of the resonant antennas 100 cannot be well synthesized, so that the semi-cylindrical shape of the dielectric resonator 20 is cut into the oblique tangential plane 212.
Step S104: a side frame 301 connecting the standing plane of the dielectric resonator 20 to the metal member 30;
step S105: the bottom wall (not shown) of the metal member 30 is fixed to the dielectric substrate 10, and the resonant antenna 100 is obtained.
The 4 dielectric resonators 20 surround the side frames 301 of the metal member 30, the dielectric substrate 10 at the bottom of the metal member 30 is welded or bonded, and the side walls 321 of the metal member 30 are welded with the vertical plane of the dielectric resonator 20, so as to complete alignment and fixation.
Referring to fig. 7, the dielectric substrate 10 is provided with a plurality of openings 101, and the dielectric resonator 20 is provided with a connecting portion 202;
step S105 further includes:
step S1051: providing a plurality of feeding parts 40, and arranging the feeding parts 40 on the surface of the dielectric substrate 10 facing away from the metal piece 30;
step S1052: passing a connecting portion 202 of the dielectric resonator 20 through the opening 101;
step S1053: the bottom wall (not shown) of the metal member 30 is fixed to the dielectric substrate 10, and the connection portions 202 of one of the dielectric resonators 20 are connected with one of the power feeding portions 40, respectively, to obtain the resonant antenna 100.
Further, the dielectric resonator 20 is fixed to the dielectric substrate 10 by bonding or welding.
The embodiment of the invention provides a method for manufacturing a resonant antenna 100, which comprises the steps of providing a dielectric substrate 10, a plurality of dielectric resonant original elements and a metal piece 30, wherein the dielectric resonator 20 is cylindrical in shape, the metal piece 30 comprises a bottom wall (not shown) and a side frame 301, and one end of the side frame 301 is arranged on the bottom wall (not shown); then the dielectric resonance elements are cut in half to obtain a plurality of secondary dielectric resonators 20, wherein the secondary dielectric resonators 20 are semi-cylindrical in shape; cutting the semicircular section 201 of the secondary dielectric resonator 20 to obtain a plurality of dielectric resonators 20, wherein the semicircular section 201 of the dielectric resonator 20 comprises an upright plane and an inclined plane; finally, connecting the vertical plane of the dielectric resonator 20 to the side frame 301 of the metal piece 30; the bottom wall (not shown) of the metal member 30 is fixed to the dielectric substrate 10, and the resonant antenna 100 is obtained. By the method for manufacturing the resonant antenna 100, the magnetic fields of the dielectric resonators 20 can be overlapped, and the directional diagram of the resonant antenna 100 can be conveniently synthesized.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, 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 invention.

Claims (10)

1. A resonant antenna, comprising:
a dielectric substrate;
the dielectric resonators are semi-cylindrical in shape, and semicircular sections of the dielectric resonators comprise vertical planes, cross sections and inclined sections;
the metal piece comprises a bottom wall and a side frame, one end of the side frame is arranged on the bottom wall, the vertical planes of the dielectric resonators are fixed on the side frame, and the bottom wall is arranged on the dielectric substrate so as to fix the dielectric resonators on the dielectric substrate.
2. The resonant antenna of claim 1, wherein,
the side frame comprises a plurality of side walls, one ends of the side walls are arranged on the bottom wall, the side walls are sequentially connected end to end, and an upright plane of the dielectric resonator is connected to one side wall.
3. A resonant antenna according to claim 2, characterized in that,
the number of the side walls and the dielectric resonators is four, the shape of the side frame is square, and the four dielectric resonators encircle the side frame.
4. The resonant antenna of claim 1, wherein,
the medium substrate is provided with a plurality of openings;
the resonant antenna further comprises a plurality of feed parts, wherein the feed parts are arranged on the surface of the dielectric substrate, which is away from the metal piece;
the dielectric resonator is provided with a connecting part, and the connecting part of one dielectric resonator passes through one opening and then is connected with one feed part.
5. The resonant antenna of claim 1, wherein,
the dielectric resonator has a dielectric constant of 21.
6. The resonant antenna of claim 1, wherein,
the radius of the dielectric resonator is 2.8mm and/or the height of the dielectric resonator is 1.5mm.
7. A communication device comprising a resonant antenna according to any of claims 1-6.
8. A method of making a resonant antenna as claimed in any one of claims 1 to 6, comprising:
providing a dielectric substrate, a plurality of dielectric resonance original elements and a metal piece, wherein the dielectric resonator is cylindrical in shape, the metal piece comprises a bottom wall and a side frame, and one end of the side frame is arranged on the bottom wall;
cutting the dielectric resonance elements in half to obtain a plurality of secondary dielectric resonators, wherein the secondary dielectric resonators are semi-cylindrical in shape;
cutting angles on semicircular sections of the secondary dielectric resonators to obtain a plurality of dielectric resonators, wherein the semicircular sections of the dielectric resonators comprise vertical planes and inclined planes;
connecting the vertical plane of the dielectric resonator to a side frame of the metal piece;
and fixing the bottom wall of the metal piece on a dielectric substrate to obtain the resonant antenna.
9. The method of claim 8, wherein the step of determining the position of the first electrode is performed,
the dielectric substrate is provided with a plurality of openings, and the dielectric resonator is provided with a connecting part;
the step of fixing the bottom wall of the metal piece to a dielectric substrate to obtain the resonant antenna further comprises the steps of:
providing a plurality of feeding parts, and arranging the feeding parts on the surface of the dielectric substrate, which is away from the metal piece;
passing a connecting portion of the dielectric resonator through the opening;
fixing the bottom wall of the metal piece on a dielectric substrate, and respectively connecting a connecting part of the dielectric resonator with a feeding part to obtain the resonant antenna 。
10. The method of claim 8, wherein the step of determining the position of the first electrode is performed,
the step of fixing the bottom wall of the metal piece to a dielectric substrate further comprises the step of fixing the dielectric resonator to the dielectric substrate by bonding or welding.
CN202310265093.XA 2023-03-13 2023-03-13 Resonant antenna, communication device and method for manufacturing resonant antenna Pending CN116130942A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310265093.XA CN116130942A (en) 2023-03-13 2023-03-13 Resonant antenna, communication device and method for manufacturing resonant antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310265093.XA CN116130942A (en) 2023-03-13 2023-03-13 Resonant antenna, communication device and method for manufacturing resonant antenna

Publications (1)

Publication Number Publication Date
CN116130942A true CN116130942A (en) 2023-05-16

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Family Applications (1)

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CN202310265093.XA Pending CN116130942A (en) 2023-03-13 2023-03-13 Resonant antenna, communication device and method for manufacturing resonant antenna

Country Status (1)

Country Link
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