CN116544658A - Terminal millimeter wave antenna and mobile terminal - Google Patents
Terminal millimeter wave antenna and mobile terminal Download PDFInfo
- Publication number
- CN116544658A CN116544658A CN202310410159.XA CN202310410159A CN116544658A CN 116544658 A CN116544658 A CN 116544658A CN 202310410159 A CN202310410159 A CN 202310410159A CN 116544658 A CN116544658 A CN 116544658A
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- antenna
- millimeter wave
- terminal
- slot
- wave antenna
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- 230000005855 radiation Effects 0.000 claims abstract description 22
- 239000000758 substrate Substances 0.000 claims abstract description 21
- 230000006872 improvement Effects 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 238000004088 simulation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000003491 array Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
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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
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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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
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
-
- 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
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
- H01Q21/064—Two dimensional planar arrays using horn or slot aerials
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Waveguide Aerials (AREA)
Abstract
The invention provides a terminal millimeter wave antenna, which comprises a substrate, an antenna radiating unit connected with the substrate and a feed structure electrically connected with the antenna radiating unit; the antenna radiation unit comprises a first slot antenna and a second slot antenna which are arranged on the substrate in a staggered mode. The terminal millimeter wave antenna adopts a slotted antenna mode to realize radiation, so that the overall radiation gain of the millimeter wave antenna can be effectively improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a millimeter wave antenna for a terminal and a mobile terminal.
Background
The design of the millimeter wave antenna in the 5G terminal is a difficult point, and especially the design difficulty of the millimeter wave antenna array is higher under the metal frame structure. And the gain is limited, the traditional patch antenna can only design four-unit arrays in the terminal, and the main beam gain can not reach more than 15 dBi. The traditional patch antenna needs to use microstrip line feed, and the microstrip line is half open structure, along with the increase of antenna unit quantity, then the length of microstrip line feeder increases, and the energy loss increases when half open structure length increases, consequently the energy loss increases when too much antenna unit, and whole gain promotes inconspicuously, hardly reaches more than 15 dBi.
In view of the foregoing, it is clearly necessary to provide a novel millimeter wave antenna for a terminal and a mobile terminal, so as to solve the above-mentioned problems,
disclosure of Invention
The invention aims to provide a terminal millimeter wave antenna, which can effectively improve the overall radiation gain of the millimeter wave antenna.
In order to solve the technical problems, the invention provides a terminal millimeter wave antenna, which comprises a substrate, an antenna radiating unit connected with the substrate and a feed structure electrically connected with the antenna radiating unit; the antenna radiation unit comprises a first slot antenna and a second slot antenna which are arranged on the substrate in a staggered mode.
As a further improvement of the invention, the first slot antenna and the second slot antenna form a slot antenna group, and a plurality of slot antenna groups are sequentially arranged in turn to form a slot array antenna.
As a further improvement of the present invention, the feed structure is provided at an intermediate position of the slot array antenna to enhance a radiation gain of the antenna.
As a further improvement of the invention, the antenna radiating element is arranged in a rectangular shape, the feed structure is also arranged in a rectangular shape, and the feed structure and the antenna radiating element are arranged perpendicular to each other.
As a further improvement of the invention, the terminal millimeter wave antenna is arranged on the side edge of the mobile terminal, the length range of the terminal millimeter wave antenna is 130-150mm, and the width range of the terminal millimeter wave antenna is 60-80mm; the length of the feed structure is in the range of 38.9mm plus or minus 10%, and the width is in the range of 14.0mm plus or minus 10%.
As a further improvement of the present invention, the length of the millimeter wave antenna for the terminal is configured to be 130mm, and the width is configured to be 60mm.
As a further improvement of the present invention, the first slot antenna and the second slot antenna are arranged in a central symmetry.
As a further improvement of the present invention, the first slot antenna and the second slot antenna are disposed in parallel with each other, and the second slot antenna is located at a position 45 ° below right of the first slot antenna.
As a further improvement of the invention, the length of the first slot antenna and the second slot antenna is in the range of 13.8mm plus or minus 10%, and the width is in the range of 1.45mm plus or minus 10%.
The invention aims to provide a mobile terminal for better application of the terminal millimeter, which is characterized in that: the mobile terminal comprises the terminal millimeter wave antenna.
The invention provides a terminal millimeter wave antenna, which comprises a substrate, an antenna radiating unit connected with the substrate and a feed structure electrically connected with the antenna radiating unit; the antenna radiation unit comprises a first slot antenna and a second slot antenna which are arranged on the substrate in a staggered mode. The terminal millimeter wave antenna adopts a slotted antenna mode to realize radiation, so that the overall radiation gain of the millimeter wave antenna can be effectively improved.
Drawings
Fig. 1 is a schematic structural diagram of a millimeter wave antenna for a terminal according to the present invention;
fig. 2 is a graph of the reflection coefficient simulation result of the millimeter wave antenna of the terminal of the present invention;
fig. 3 is a diagram of simulation results of the radiation efficiency of the millimeter wave antenna of the terminal according to the present invention with the change of frequency;
fig. 4 is a 3D direction simulation result diagram of the terminal millimeter wave antenna of the present invention at a 24GHz frequency point.
Wherein, each reference sign is explained as follows:
a terminal millimeter wave antenna 100, a first slot antenna 11, a second slot antenna 12, and a feed structure 20.
Detailed Description
The millimeter-wave antenna 100 and the mobile terminal according to the present invention are described in further detail below with reference to the accompanying drawings and the specific embodiments. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention. Furthermore, the structures shown in the drawings are often part of actual structures. In particular, the drawings are shown with different emphasis instead being placed upon illustrating the various embodiments.
The invention provides a terminal millimeter wave antenna 100, wherein the terminal millimeter wave antenna 100 is an array antenna formed based on waveguide slots, can be suitable for arranging the millimeter wave antenna on a metal frame of the terminal antenna, and effectively improves the overall gain of the antenna. In the prior art, the design of the millimeter wave antenna in the 5G terminal is difficult, and especially the design difficulty of the millimeter wave antenna array is higher under the metal frame structure. And the gain is limited, the traditional patch antenna can only design four-unit arrays in the terminal, and the main beam gain can not reach more than 15 dBi. The traditional patch antenna needs to use microstrip line feed, and the microstrip line is half open structure, along with antenna unit quantity increase, then microstrip line feeder's length increases, and energy loss increases when half open structure length increases, consequently energy loss increases when too much antenna unit, and whole gain promotes inconspicuously, hardly reaches more than 15 dBi.
The Substrate Integrated Waveguide (SIW) is a three-dimensional periodic structure, can be obtained by utilizing integrated processes such as PCB, LTCC and the like, and can limit electromagnetic waves radiated outwards through metal through holes or air through holes, thereby replacing the integrated waveguide structure of the traditional rectangular metal waveguide or non-radiative dielectric waveguide (NRD).
The terminal millimeter wave antenna 100 of the invention can be applied to a mobile terminal, and particularly, the terminal millimeter wave antenna 100 of the invention can be placed on any frame of a metal frame mobile terminal, and the overall layout of different antennas of the actual mobile terminal is comprehensively considered according to the specific requirement, so that different frames of the actual mobile terminal are designed into different antennas. For example, the millimeter wave structure of the terminal of the present invention may be disposed on one side of the long frame, on one side of the short frame, or on a plurality of frames at the same time.
As shown in fig. 1, the terminal millimeter wave antenna 100 of the present invention includes a substrate, an antenna radiating element connected to the substrate, and a feeding structure 20 electrically connected to the antenna radiating element. The antenna radiating unit includes a first slot antenna 11 and a second slot antenna 12 formed on a substrate. The terminal millimeter wave antenna 100 is placed on the side edge of the mobile terminal, preferably, the substrate is preferably a metal substrate, the terminal millimeter wave antenna 100 is placed on the right long side of the mobile terminal, the length range of the terminal millimeter wave antenna 100 is 130-150mm, and the width range is 60-80mm; the length of the feed structure 20 ranges from 38.9mm 10% and the width ranges from 14.0mm 10%. Preferably, the millimeter wave antenna of the present invention is configured to have a length of 130mm and a width of 60mm. Under the above-mentioned size, the high gain millimeter wave antenna of the invention can be placed on one side of the long side of the metal frame mobile phone.
The millimeter wave antenna 100 of the terminal of the present invention comprises an antenna radiating unit, which comprises a first slot antenna 11 and a second slot antenna 12, wherein the first slot antenna 11 and the second slot antenna 12 are staggered with each other, and the first slot antenna 11 and the second slot antenna 12 are arranged in a central symmetry manner. Specifically, the first slot antenna 11 and the second slot antenna 12 are disposed parallel to each other, and the second slot antenna 12 is located at a position 45 ° below right of the first slot antenna 11. The length of the first slot antenna 11 and the second slot antenna 12 in the invention are 13.8mm plus or minus 10%, and the width is 1.45mm plus or minus 10%. Further, the first slot antenna 11 and the second slot antenna 12 form a slot antenna group, and the plurality of slot antenna groups are sequentially arranged in sequence to form a slot array antenna, so that compared with the traditional linear array arrangement, the array unit slot antennas are staggered, and higher gain can be realized simultaneously while miniaturization is realized. In order to implement the waveguide slot antenna of the present invention, the slot antenna generally needs to be implemented by a SIW process or a 3D printing process. Other terminal housing structures may be metallic or non-metallic depending on the actual terminal appearance and robust nature requirements.
The feed structure 20 of the present invention is provided at an intermediate position of the slot array antenna to enhance the radiation gain of the antenna. That is, the terminal millimeter wave antenna 100 of the present invention is provided with the feed structure 20 connected to the antenna radiating element, i.e., the intermediate position of the slot array antenna. Preferably, the antenna radiating element of the present invention is rectangular, the feeding structure 20 is also rectangular, and the feeding structure 20 and the antenna radiating element are perpendicular to each other. Thus, the effect of high gain of the whole array antenna is achieved, unlike the existing feed structure 20, the feed structure 20 of the terminal millimeter wave antenna 100 of the present invention is the middle feed of the long side slot array antenna of the whole antenna radiating unit, so that the energy of the antenna is radiated along the slots on the left and right sides of the middle, respectively, and the energy is attenuated during the radiation process, so that the attenuation of the feed structure 20 of the antenna radiating unit of the present invention can be reduced at the middle position. However, the feeding structure 20 in the prior art is disposed at an end, such as at the leftmost side or the rightmost side, that is, the edge feeding mode is used, so that after feeding, attenuation of the slot antenna during radiation will be increased, and overall gain is reduced, in short, the band loss of the antenna as a whole will be very large. The feed structure 20 of the present invention is disposed at an intermediate position of the antenna radiating element to reduce the band loss of the antenna during radiation.
Since electromagnetic waves of the slot waveguide antenna are periodic structures, only the relative phase difference thereof is focused, so that the conventional mode of feeding one end of the slot waveguide antenna and the mode of feeding the terminal millimeter wave antenna 100 of the present invention in which the feeding structure 20 is disposed at the intermediate position of the antenna radiating element may be different in absolute phase difference, but the relative phase difference is identical. Therefore, it can be known that the intermediate feeding mode of the terminal millimeter wave antenna 100 of the invention not only can meet the practical application of the mobile terminal, but also can improve the overall radiation efficiency of the terminal antenna and reduce gain attenuation.
In order to illustrate that the terminal millimeter wave antenna 100 of the invention can improve the overall gain of the antenna and reduce the band loss, the invention provides a reflection coefficient simulation result diagram of the terminal millimeter wave antenna 100. As can be seen from the figure, the terminal millimeter wave antenna 100 of the present invention achieves good resonance at the 24GHz attachment, as shown in fig. 2. The invention also provides a simulation result of the efficiency of the terminal millimeter wave antenna 100 along with the frequency change, as shown in fig. 3, the radiation efficiency of the terminal millimeter wave antenna 100 is basically more than 90 in a band, and the total efficiency is more than 50% in a range of 24-25GHz, so that the terminal millimeter wave antenna 100 can be illustrated to realize good resonance. The invention also provides a 3D directional diagram simulation result of the terminal millimeter wave antenna 100 at a 24GHz frequency point, as shown in fig. 4, the simulation result gain of the directional diagram reaches more than 17.55dBi, and good high-gain radiation characteristic is realized.
In summary, the present invention provides a terminal millimeter wave antenna 100, where the terminal millimeter wave antenna 100 includes a substrate, an antenna radiating unit connected to the substrate, and a feeding structure 20 electrically connected to the antenna radiating unit; the antenna radiation unit comprises a first slot antenna 11 and a second slot antenna 12 which are arranged on the substrate, and the first slot antenna 11 and the second slot antenna 12 are arranged in a staggered manner. The terminal millimeter wave antenna 100 of the invention adopts a slotted antenna mode to realize radiation, so that the radiation gain of the whole millimeter wave antenna can be effectively improved.
In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the difference from other embodiments, so that the same similar parts of each embodiment are referred to each other.
The above description is only illustrative of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, and any alterations and modifications made by those skilled in the art based on the above disclosure shall fall within the scope of the appended claims.
Claims (10)
1. A terminal millimeter wave antenna, characterized by: the terminal millimeter wave antenna comprises a substrate, an antenna radiating unit connected with the substrate and a feed structure electrically connected with the antenna radiating unit; the antenna radiation unit comprises a first slot antenna and a second slot antenna which are arranged on the substrate in a staggered mode.
2. The terminal millimeter wave antenna according to claim 1, wherein: the first slot antenna and the second slot antenna form a slot antenna group, and a plurality of slot antenna groups are sequentially arranged in sequence to form a slot array antenna.
3. The terminal millimeter wave antenna according to claim 2, wherein: the feed structure is disposed at an intermediate position of the slot array antenna to enhance a radiation gain of the antenna.
4. A terminal millimeter wave antenna according to claim 3, characterized in that: the antenna radiating unit is arranged in a rectangular shape, the feed structure is also arranged in a rectangular shape, and the feed structure and the antenna radiating unit are mutually perpendicular.
5. The terminal millimeter wave antenna according to claim 1, wherein: the terminal millimeter wave antenna is arranged on the side edge of the mobile terminal, the length range of the terminal millimeter wave antenna is 130-150mm, and the width range of the terminal millimeter wave antenna is 60-80mm; the length of the feed structure is in the range of 38.9mm plus or minus 10%, and the width is in the range of 14.0mm plus or minus 10%.
6. The terminal millimeter wave antenna according to claim 5, wherein: the length of the millimeter wave antenna of the terminal is configured to be 130mm, and the width of the millimeter wave antenna of the terminal is configured to be 60mm.
7. The terminal millimeter wave antenna according to claim 1, wherein: the first slot antenna and the second slot antenna are arranged in a central symmetry mode.
8. The terminal millimeter wave antenna according to claim 1, wherein: the first slot antenna and the second slot antenna are arranged in parallel, and the second slot antenna is positioned at a position 45 degrees below the right of the first slot antenna.
9. The terminal millimeter wave antenna according to claim 8, wherein: the length range of the first slot antenna and the second slot antenna is 13.8mm plus or minus 10%, and the width range is 1.45mm plus or minus 10%.
10. A mobile terminal, characterized by: the mobile terminal comprising the terminal millimeter wave antenna of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310410159.XA CN116544658A (en) | 2023-04-18 | 2023-04-18 | Terminal millimeter wave antenna and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310410159.XA CN116544658A (en) | 2023-04-18 | 2023-04-18 | Terminal millimeter wave antenna and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116544658A true CN116544658A (en) | 2023-08-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310410159.XA Pending CN116544658A (en) | 2023-04-18 | 2023-04-18 | Terminal millimeter wave antenna and mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116544658A (en) |
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2023
- 2023-04-18 CN CN202310410159.XA patent/CN116544658A/en active Pending
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Country or region after: China Address after: 215300 Room 009, No. 55, Shengchuang Road, Yushan Town, Kunshan, Suzhou, Jiangsu Province Applicant after: KUNSHAN RUIXIANG XUNTONG COMMUNICATION TECHNOLOGY Co.,Ltd. Address before: 215300 no.1689-5 Zizhu Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Applicant before: KUNSHAN RUIXIANG XUNTONG COMMUNICATION TECHNOLOGY Co.,Ltd. Country or region before: China |
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