CN113659347B - Dielectric resonator antenna and terminal - Google Patents
Dielectric resonator antenna and terminal Download PDFInfo
- Publication number
- CN113659347B CN113659347B CN202110915562.9A CN202110915562A CN113659347B CN 113659347 B CN113659347 B CN 113659347B CN 202110915562 A CN202110915562 A CN 202110915562A CN 113659347 B CN113659347 B CN 113659347B
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- gap
- dielectric resonator
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- dielectric
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- 230000008878 coupling Effects 0.000 claims abstract description 26
- 238000010168 coupling process Methods 0.000 claims abstract description 26
- 238000005859 coupling reaction Methods 0.000 claims abstract description 26
- 230000003071 parasitic effect Effects 0.000 claims abstract description 25
- 239000000758 substrate Substances 0.000 claims abstract description 25
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 101700004678 SLIT3 Proteins 0.000 description 2
- 102100027339 Slit homolog 3 protein Human genes 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- Waveguide Aerials (AREA)
Abstract
The invention discloses a dielectric resonator antenna and a terminal, wherein the dielectric resonator antenna comprises a dielectric substrate and a dielectric resonator arranged on the dielectric substrate, and a coupling gap, a parasitic gap and a feeder line are arranged on the substrate, and the dielectric resonator antenna is characterized in that: the coupling gap is a first opening gap; the parasitic gap is a second opening gap; the opening direction of the first opening gap is opposite to the opening direction of the second opening gap. The dielectric resonator antenna is characterized in that the coupling gap is a first opening gap, the parasitic gap is a second opening gap, and the opening direction of the first opening gap is opposite to the opening direction of the second opening gap. The first open slot coupled to the feed line is used for feeding, high frequency signals on the feed line are introduced into the rectangular dielectric resonator, the second open slot is used for guiding surface currents, and finally the required resonance mode is generated through the rectangular dielectric resonator.
Description
Technical Field
The invention relates to an antenna, in particular to a dielectric resonator antenna.
Background
The rapid development of the new generation of mobile communication technology (5G) puts more and more stringent requirements on wireless communication devices, and the quality of the performance of an antenna as one of the key parts of the antenna directly determines the communication quality and the user experience. In order to increase the information transmission rate, the operating frequency band of the antenna is increased to the millimeter wave frequency band, and the antenna is often required to have a wider bandwidth and a higher gain. As the frequency increases, the metal loss affects the antenna efficiency more significantly, affecting the gain of the antenna. Meanwhile, the space provided by the mobile phone terminal to the millimeter wave antenna is extremely limited, and miniaturization and compactness of the antenna are important. In addition, due to the arbitrary nature of the direction and polarization of the received signal at the terminal, a higher gain is required for the antenna over a larger radiation range. In the prior art, the millimeter wave antenna has large volume and lower gain.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a miniaturized high-gain dielectric resonator antenna and a terminal aiming at the defects existing in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a dielectric resonator antenna, includes dielectric substrate and sets up the dielectric resonator on dielectric substrate be provided with coupling gap, parasitic gap and feeder on the substrate, its characterized in that:
the coupling gap is a first opening gap; the parasitic gap is a second opening gap; the opening direction of the first opening gap is opposite to the opening direction of the second opening gap.
The first opening gap is a first arc gap.
The second opening gap is a second arc gap.
The first arc gap and the second arc gap are symmetrically arranged, the arc radiuses are the same, and the arc lengths are the same.
The gap width of the first arc gap and the second arc gap is 0.5-8mm.
The coupling gap and the parasitic gap are arranged on the upper surface of the dielectric substrate, and the feeder line is arranged on the lower surface of the dielectric substrate.
The dielectric resonator is rectangular in shape.
Compared with the prior art, the invention has the following beneficial effects:
1. The dielectric resonator antenna is characterized in that the coupling gap is a first opening gap, the parasitic gap is a second opening gap, and the opening direction of the first opening gap is opposite to the opening direction of the second opening gap. The first open slot coupled to the feed line is used for feeding, high frequency signals on the feed line are introduced into the rectangular dielectric resonator, the second open slot is used for guiding surface currents, and finally the required resonance mode is generated through the rectangular dielectric resonator.
2. The arc gap limits the excited surface current to the area between the two arcs, and the parasitic gap changes the coupling current on the front surface of the substrate, so that the return loss of signals is reduced, and the matching degree is improved. The required coupling and parasitic slots are excited to excite both modes TE δ21 x, TE δ10 x in the medium and improve matching.
3. The dielectric resonator antenna structure mainly comprises a substrate and a dielectric resonator. The coupling gap and the parasitic gap on the substrate are in a double-C shape, the outline is formed like a circle, and the area occupied by the two gaps is controllable by controlling the radius of the circle. Meanwhile, the dielectric resonator is square and is overlapped with the areas of the coupling gap and the parasitic gap, so that the overall structure size of the formed antenna is reduced finally.
Drawings
Fig. 1 is an exploded view of a resonator antenna structure of the present invention;
Fig. 2 is a side view of a resonator antenna of the present invention;
FIG. 3 is a schematic view of a dielectric substrate structure according to the present invention;
fig. 4 is an S11 diagram of the resonator antenna of the present invention and an antenna without a dielectric resonator.
Detailed Description
The invention is described in detail below with reference to the attached drawings:
The invention relates to a dielectric resonator antenna, which comprises a dielectric substrate 1 and a dielectric resonator 2 arranged on the dielectric substrate, wherein a metal layer is coated on the upper surface of the dielectric substrate 1, and a coupling gap 3 and a parasitic gap 4 are formed on the metal layer. The dielectric resonator 2 is provided on the upper surface of the substrate and overlaps the areas of the coupling slit 3 and the parasitic slit 4. The feeder line 5 is located on the lower surface of the dielectric substrate 1, and is coupled with the coupling slot 3 on the upper surface of the dielectric substrate 1 to serve as a feeder line of the dielectric resonator antenna. The coupling slit 3 is a first opening slit, the parasitic slit 4 is a second opening slit, and the opening direction of the first opening slit is opposite to the opening direction of the second opening slit. The parasitic slot 4 is located near the coupling slot 3, and the coupling slot 3 and the parasitic slot 4 excite two modes of TE δ21 x, TE δ10 x in the medium. The parasitic gap changes the coupling current on the front surface of the substrate, reduces the return loss of signals and improves the matching degree.
In one embodiment, the metal layer is copper.
In one embodiment, the first opening slit is a first circular arc slit. The second opening gap is a second arc gap. The radius of the first arc gap is R1, the arc length is L1, the radius of the second arc gap is R2, the arc length is L2, R1 and R2 can be the same or different, and L1 and L2 can be the same or different.
In one embodiment, the radii R1 and R2 of the coupling slot 3 and the parasitic slot 4 are the same, and the arc lengths L1 and L2 of the coupling slot 3 and the parasitic slot 4 are the same, forming a double C-shaped structure.
The geometry of the coupling slot 3 and the parasitic slot 4, and the relative distance of the coupling slot 3 and the parasitic slot 4 in the X, Y axial direction of the horizontal plane are adjustable.
The gap width of the first arc gap and the second arc gap is 0.5-8mm.
In one embodiment, the first circular arc slit and the second circular arc slit have a slit width of 3mm.
In one embodiment, the dielectric resonator 2 is a rectangular parallelepiped, and has a relative dielectric constant of 50 or more, preferably 65.
In one embodiment, the dielectric substrate of the dielectric resonator antenna is preferably square, the side length is 10-50mm, the size of the dielectric resonator is 1-30mm in radius, and the height is 1-50mm.
The dielectric resonator antenna of the present invention has linear polarization. Fig. 4 is a diagram of a dielectric resonator antenna S11 with a rectangular dielectric resonator 2, a coupling slot 3 and a parasitic slot 4 having a double-C structure, and it can be seen from the diagram that the dielectric resonator antenna of the present invention has a good matching effect, high gain, and small size.
The invention also provides a terminal device, which comprises the dielectric resonator antenna of any embodiment. The terminal equipment provided by the embodiment of the invention receives the oscillating current through the dielectric resonator antenna, converts the oscillating current into electromagnetic waves, radiates the electromagnetic waves to the surrounding space, and completes the communication function of the application terminal connected with the dielectric resonator antenna. It should be noted that, the terminal device provided by the embodiment of the invention is not limited to a mobile phone, a computer, an ipad, a tablet personal computer and the like.
Claims (5)
1. The utility model provides a dielectric resonator antenna, includes dielectric substrate and sets up the dielectric resonator on dielectric substrate be provided with coupling gap, parasitic gap and feeder on the substrate, its characterized in that:
The coupling gap is a first opening gap; the parasitic gap is a second opening gap; the opening direction of the first opening gap is opposite to the opening direction of the second opening gap;
The first opening gap is a first arc gap; the second opening gap is a second arc gap; the first arc gap and the second arc gap are symmetrically arranged, the arc radiuses are the same, and the arc lengths are the same.
2. The dielectric resonator antenna of claim 1, wherein: the gap width of the first arc gap and the second arc gap is 0.5-8mm.
3. A dielectric resonator antenna according to any of claims 1-2, characterized in that: the coupling gap and the parasitic gap are arranged on the upper surface of the dielectric substrate, and the feeder line is arranged on the lower surface of the dielectric substrate.
4. A dielectric resonator antenna according to any of claims 1-2, characterized in that: the dielectric resonator is rectangular in shape.
5. A terminal comprising a dielectric resonator antenna according to any of claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110915562.9A CN113659347B (en) | 2021-08-10 | 2021-08-10 | Dielectric resonator antenna and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110915562.9A CN113659347B (en) | 2021-08-10 | 2021-08-10 | Dielectric resonator antenna and terminal |
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| Publication Number | Publication Date |
|---|---|
| CN113659347A CN113659347A (en) | 2021-11-16 |
| CN113659347B true CN113659347B (en) | 2024-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110915562.9A Active CN113659347B (en) | 2021-08-10 | 2021-08-10 | Dielectric resonator antenna and terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114861850B (en) * | 2022-07-05 | 2022-09-02 | 南京隼眼电子科技有限公司 | Electronic label |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071044A (en) * | 2015-08-12 | 2015-11-18 | 四川省韬光通信有限公司 | Small high-isolation dual-polarization medium resonator antenna |
| CN108336484A (en) * | 2018-03-07 | 2018-07-27 | 华南理工大学 | A kind of wideband patch antenna of slot-coupled |
| CN211743415U (en) * | 2020-03-25 | 2020-10-23 | 东莞理工学院 | Multi-frequency microstrip antenna with radiator loaded with parasitic resonator |
| CN111883916A (en) * | 2020-07-16 | 2020-11-03 | 南通大学 | Broadband low-profile dielectric patch filtering antenna based on double-slit feed structure |
| KR102176044B1 (en) * | 2019-07-29 | 2020-11-06 | 주식회사 에스원 | Dipole Antenna with Switching Means For Circular Polarization UWB |
| WO2020248289A1 (en) * | 2019-06-14 | 2020-12-17 | Nokia Shanghai Bell Co., Ltd. | Dielectric resonator antenna and dielectric resonator antenna array |
| CN113097727A (en) * | 2021-03-05 | 2021-07-09 | 深圳市信维通信股份有限公司 | Dual-frequency dielectric resonant antenna for 5G communication and mobile equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7619564B2 (en) * | 2006-08-23 | 2009-11-17 | National Taiwan University | Wideband dielectric resonator monopole antenna |
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2021
- 2021-08-10 CN CN202110915562.9A patent/CN113659347B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071044A (en) * | 2015-08-12 | 2015-11-18 | 四川省韬光通信有限公司 | Small high-isolation dual-polarization medium resonator antenna |
| CN108336484A (en) * | 2018-03-07 | 2018-07-27 | 华南理工大学 | A kind of wideband patch antenna of slot-coupled |
| WO2020248289A1 (en) * | 2019-06-14 | 2020-12-17 | Nokia Shanghai Bell Co., Ltd. | Dielectric resonator antenna and dielectric resonator antenna array |
| KR102176044B1 (en) * | 2019-07-29 | 2020-11-06 | 주식회사 에스원 | Dipole Antenna with Switching Means For Circular Polarization UWB |
| CN211743415U (en) * | 2020-03-25 | 2020-10-23 | 东莞理工学院 | Multi-frequency microstrip antenna with radiator loaded with parasitic resonator |
| CN111883916A (en) * | 2020-07-16 | 2020-11-03 | 南通大学 | Broadband low-profile dielectric patch filtering antenna based on double-slit feed structure |
| CN113097727A (en) * | 2021-03-05 | 2021-07-09 | 深圳市信维通信股份有限公司 | Dual-frequency dielectric resonant antenna for 5G communication and mobile equipment |
Non-Patent Citations (3)
| Title |
|---|
| Frequency Reconfigurable Hemispherical Dielectric Resonator Antenna Using Dual Split Rings;Anu A R et al.;《2020 International Symposium on Antennas & Propagation (APSYM)》;20210216;正文1-4页，图1-10 * |
| 基于矩形缝隙环谐振器的无芯片标签设计;马中华等;《华南理工大学学报( 自然科学版)》;20170131;第45卷(第1期);全文 * |
| 新型可重构和反射阵介质谐振器天线研究;张萌;《中国优秀硕士学位论文全文数据库》;20160815;全文 * |
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| CN113659347A (en) | 2021-11-16 |
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