WO2024032414A1 - Antenne et dispositif terminal - Google Patents

Antenne et dispositif terminal Download PDF

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Publication number
WO2024032414A1
WO2024032414A1 PCT/CN2023/110287 CN2023110287W WO2024032414A1 WO 2024032414 A1 WO2024032414 A1 WO 2024032414A1 CN 2023110287 W CN2023110287 W CN 2023110287W WO 2024032414 A1 WO2024032414 A1 WO 2024032414A1
Authority
WO
WIPO (PCT)
Prior art keywords
slot
antenna
side wall
feed
conductive
Prior art date
Application number
PCT/CN2023/110287
Other languages
English (en)
Chinese (zh)
Inventor
张翔
张琛
李肖峰
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2024032414A1 publication Critical patent/WO2024032414A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
    • 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
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • 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
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/10—Resonant antennas

Definitions

  • the present application relates to the field of communication technology, and in particular to an antenna and terminal equipment.
  • Customer premises equipment is a device that converts the Long Term Evolution (LTE) or mobile communication network (New Radio, NR) signal received from the base station into a wireless network (Wireless Fidelity, Wi- A device that re-sends Fi) signals for user terminal access, can support multiple mobile terminal access at the same time, and is widely used in homes, hospitals, factories, shopping malls, offices and other places. Compared with wired networks, its application scenarios are more Flexible, network construction is more convenient.
  • MIMO multiple-in multiple-out
  • the purpose of this application is to provide an antenna and a terminal device to realize the layout of multiple antennas in a limited space of the terminal device and ensure the isolation between antennas.
  • a first aspect of the present application provides an antenna, which includes:
  • a conductor component at least partially provided on the dielectric substrate, the conductor component is provided with a first half-slot and a second half-slot that are not connected to each other, the first half-slot and the second half-slot
  • the opening directions of the conductive parts are away from each other;
  • the conductive component is also provided with a conductive branch on one side of the opening direction of the second half-slot, and the first end of the conductive branch is connected to the first side of the second half-slot.
  • Wall connection a break is provided between the second end of the conductive branch and the second side wall of the second half-slot;
  • a first feed structure is provided in the first half slot
  • the second power feeding structure is disposed in the second half slot.
  • the antenna provided by this application operates in a low frequency band such as 2 to 2.5 GHz, when any one of the feed structures feeds, the reverse currents can be canceled at the other feed structure, thereby achieving two
  • the decoupling of the antennas improves the isolation of the two antennas.
  • the antenna with conductive branches provided by this application can cover the low, medium and high frequency bands of 2 to 5 GHz, has good isolation between antennas, and has a large decoupling bandwidth, especially working in the low frequency band of 2 to 2.5 GHz.
  • the antenna provided by this application is a kind of two antennas formed on one conductor component.
  • the conductive branches are arranged on one side of one of the antennas to improve the isolation of the antenna.
  • the conductive branches are only arranged between one antenna and one antenna.
  • the antenna provided by the embodiments of the present application can achieve miniaturization of the antenna size and reduce space occupation, which is conducive to the miniaturization of customer terminal equipment and is also conducive to arranging more antennas in a limited space.
  • the first feed structure is coupled to the first feed structure through the second half-slotted first side wall on the conductive branch to generate a first current, and the first current is generated on the conductive branch through the second half-slotted first side wall.
  • the slotted second sidewall couples the first feed structure to generate a second current, and the first current and the second current are in opposite directions.
  • the conductor component includes a grounding part and a floor, the grounding part is electrically connected to the floor, and the first half-slot and the grounding part are formed between the grounding part and the floor. A second half-slot, and the first half-slot and the second half-slot are separated by the ground portion.
  • the floor and the grounding part are both part of the conductor component.
  • the ground portion is the common portion of the first half-slotted and second half-slotted
  • the first half slot and the second half slot are grounded through the grounding portion.
  • a portion of the floor may serve as the first half-slotted first side wall and the second half-slotted first side wall. That is to say, by forming the first half-slot and the second half-slot on one conductor member, the first antenna formed at the first half-slot and the second antenna formed at the second half-slot can be formed into Antenna is conducive to reducing the overall size of the antenna and reducing space occupancy.
  • the first half-slot and the second half-slot have the same length direction.
  • the first half-slot and the second half-slot may extend in the same direction and be positioned adjacent to each other.
  • the grounding part is blocked between the first half-slot and the second half-slot, and the width of the grounding part in the extending direction of the first half-slot and the second half-slot is less than or equal to 6mm, so that the antenna can be Miniaturization, reducing space occupation rate.
  • the above-mentioned width of the ground portion is less than or equal to 4 mm, or less than or equal to 3 mm.
  • an electrical length between an end of the second semi-slotted second side wall and a center of the ground portion is a quarter wavelength of a target frequency band of the antenna. This will help improve the energy traction effect of the conductive branches.
  • the extension direction of the conductive branches is perpendicular to the opening direction of the second half-slot, and the electrical length of the conductive branches in the extension direction is less than or equal to the target frequency band of the antenna. a quarter wavelength. This can help improve the energy traction effect of the conductive branches.
  • the upper end surface of the conductive branch is flush with the upper surface of the second half-slotted second side wall.
  • the conductive branch includes a first section and a second section, the first end of the first section is connected to the first side wall of the second half-slot, and the first section The second end is connected to the first end of the second section, and the break is provided between the second end of the second section and the second side wall of the second semi-slotted part.
  • the conductive branch can be L-shaped, so that the height of the conductive branch above the floor and the width of the break can be adjusted by adjusting the length of the first section and the second section, so that the first antenna and the second antenna can be connected
  • the conductive branch can be L-shaped, so that the height of the conductive branch above the floor and the width of the break can be adjusted by adjusting the length of the first section and the second section, so that the first antenna and the second antenna can be connected
  • the sum of the electrical lengths of the first section and the second section is less than or equal to a quarter wavelength of the target frequency band of the antenna.
  • the first feeding structure includes a first coupling piece, the first coupling piece is arranged in the first half slot, and a first feeding plate is provided on the first coupling piece. Electric point.
  • the conductor component can be fed through the first feeding point and the first coupling piece, and a gap is formed between the peripheral edge of the first coupling piece and the corresponding first half-slotted side wall to form a coupled feeding structure. , can make the current evenly distributed on the floor, with better bandwidth and omnidirectional radiation characteristics.
  • the first feed structure includes a first feed member, a first feed point is provided at a first end of the first feed member, and a first feed point of the first feed member is The two ends are connected to the second side wall of the first half-slot.
  • the first power feeding part is directly connected to the second side wall of the first half slot, for example by welding.
  • the first power feeding part and the second side wall of the first half slot are an integrally formed structure, that is, the first The feeder is also part of the conductor component.
  • the structure of the first feeder directly bridging the two side walls of the corresponding first half-slot allows the first skypiece to constitute an IFA skypiece.
  • the first power feeding member can directly feed power to the second side wall of the first half-slot, which is beneficial to simplifying the overall structure of the sky piece.
  • the second feeding structure includes a second coupling piece, the second coupling piece is disposed in the second half slot, and a second feeding plate is disposed on the second coupling piece. Electric point.
  • the second feed structure includes a second feed member, a first end of the second feed member is provided with a second feed point, and a third feed point of the second feed member is The two ends are connected to the second side wall of the second half-slot.
  • both the first feeding element and the second feeding element may have the same structural form and technical effect, which will not be described again here.
  • both the first feeding element and the second feeding element can be feed lines.
  • both the first antenna and the second antenna are fed in the form of feed lines, both the first antenna and the second antenna constitute an IFA antenna.
  • the dielectric substrate is provided with a feed circuit, and both the first feed point and the second feed point are connected to the feed circuit, so that the conductor can be connected through the feed circuit.
  • Component feed
  • the conductor component and the feed circuit are located on the same side of the dielectric substrate, so that The feed circuit, the first antenna and the second antenna are all arranged on the same side of the dielectric substrate. There is no need to process the back of the dielectric substrate, such as copper coating, metal vias or waveguides, etc., which is beneficial to reducing the overall cost of the antenna. volume, simplified structure.
  • the width of the break is greater than or equal to 1 mm. This allows the conductive branches to improve the isolation of the antenna when operating in the low frequency band of 2 to 2.5GHz.
  • the width of the fracture is 1 to 4 mm. Within this width range, the isolation in the 2-2.5GHz frequency band can be effectively improved.
  • the conductor component is an integrally formed structure, that is, the first half-slot, the second half-slot, the grounding part, the floor and the conductive branches are all formed on one conductor component, so that the antenna volume can be realized Miniaturization and reduced space occupation are conducive to the miniaturization of customer terminal equipment and the arrangement of more antennas in a limited space.
  • a second aspect of this application also provides a terminal device, including the above-mentioned antenna.
  • the terminal equipment includes a metal frame
  • the conductor component includes a floor
  • the floor is provided on the dielectric substrate
  • the first half-opening is formed between the floor and the metal frame.
  • the groove and the second half-slot, and the metal frame forms the second side wall of the first half-slot and the second side wall of the second half-slot.
  • the terminal device includes a housing, the antenna is provided inside the housing, and all the conductor components are provided on the dielectric substrate.
  • Figure 1 is a schematic structural diagram of an antenna provided by an embodiment of the present application.
  • Figure 2 is a current distribution diagram of the antenna provided by the embodiment of the present application when no conductive branches are provided at the first operating frequency, and the first feed structure feeds power, and the second feed structure does not feed power;
  • Figure 3 is a current distribution diagram of the antenna provided by the embodiment of the present application when no conductive branches are provided at the first operating frequency, the second feed structure feeds power, and the first feed structure does not feed power;
  • Figure 4 is a current distribution diagram of the antenna provided by the embodiment of the present application after the conductive branches are provided at the first operating frequency, and the first feed structure feeds power, and the second feed structure does not feed power;
  • Figure 5 is a current distribution diagram of the antenna provided by the embodiment of the present application after the conductive branches are provided at the first operating frequency, and the second feed structure feeds power, and the first feed structure does not feed power;
  • Figure 6 is a current distribution diagram of the antenna provided by the embodiment of the present application when no conductive branches are provided at the second operating frequency, and the first feed structure feeds power, and the second feed structure does not feed power;
  • Figure 7 is a current distribution diagram of the antenna provided by the embodiment of the present application after the conductive branches are provided at the second operating frequency, and the first feed structure feeds power, and the second feed structure does not feed power;
  • Figure 8 is a current distribution diagram of the antenna provided by the embodiment of the present application when no conductive branches are provided at the second operating frequency, and the second feed structure feeds power, and the first feed structure does not feed power;
  • Figure 9 is a current distribution diagram of the antenna provided by the embodiment of the present application after the conductive branches are provided at the second operating frequency, and the second feed structure feeds power, and the first feed structure does not feed power;
  • Figure 10 is a current distribution diagram of the antenna provided by the embodiment of the present application when no conductive branches are provided at the third operating frequency, and the first feed structure feeds power, and the second feed structure does not feed power;
  • Figure 11 is a current distribution diagram of the antenna provided by the embodiment of the present application after the conductive branches are provided at the third operating frequency, and the first feed structure feeds power, and the second feed structure does not feed power;
  • Figure 12 is a current distribution diagram of the antenna provided by the embodiment of the present application when no conductive branches are provided at the third operating frequency, and the second feed structure feeds power, and the first feed structure does not feed power;
  • Figure 13 is a current distribution diagram of the antenna provided by the embodiment of the present application after the conductive branches are provided at the third operating frequency, and the second feed structure feeds power, and the first feed structure does not feed power;
  • Figure 14 is a comparison chart of the isolation curves of the antenna shown in Figure 1 with and without conductive branches;
  • Figure 15 is a diagram showing the relationship between the change in fracture width and the pit offset of the isolation curve
  • Figure 16 is a diagram showing the relationship between the change in conductive branch length and the pit offset of the isolation curve
  • Figure 17 is a schematic structural diagram of an antenna provided by another embodiment of the present application.
  • Figure 18 is a comparison chart of the isolation curves of the antenna shown in Figure 17 with and without conductive branches;
  • Figure 19 is a schematic structural diagram of an antenna provided by another embodiment of the present application.
  • FIG. 20 is a comparison chart of the isolation curves of the antenna shown in FIG. 19 with and without conductive branches.
  • connection can be a fixed connection, a detachable connection, or an integral connection.
  • Connection, or electrical connection may be direct or indirect through an intermediary.
  • Customer premises equipment is a device that converts the LTE or NR signal received from the base station into a WIFI signal and then sends it out for user terminal access.
  • the customer terminal device can be a card wireless router. , removable portable routers, etc., which send and receive wireless signals through antennas arranged inside.
  • Embodiments of the present application provide an antenna and a terminal device.
  • the terminal device may be a customer terminal device, such as a card wireless router, a removable portable router, etc.
  • the antenna may be applied to the terminal device.
  • FIG. 1 is a schematic structural diagram of an antenna provided by an embodiment of the present application.
  • the antenna specifically includes a dielectric substrate 1, a conductor component 2, a first feed structure 3 and a second feed structure 4.
  • the conductor component 2 may be a thin plate-like structure made of conductive material, such as a metal plate.
  • the conductor component 2 is an integral plate component formed in one piece.
  • the conductor component 2 is at least partially disposed on a dielectric substrate 1.
  • the dielectric substrate 1 can be a flame-resistant material (FR-4) dielectric plate, a Rogers (Rogers) dielectric plate, or a mixed medium of Rogers and FR-4. Board, etc.
  • FR-4 is the code for a flame-resistant material grade
  • Rogers dielectric board is a high-frequency board.
  • the conductor component 2 is provided with a first half-slot 111 and a second half-slot 121 that are not connected to each other.
  • the opening directions of the first half-slot 111 and the second half-slot 121 are away from each other.
  • the first half-slot 111 and the second half-slot 121 are half-slots formed on the conductor component 2 by cutting material or direct molding.
  • the first half-slot 111 and the second half-slot 121 are not connected, so that the structures at the first half-slot 111 and the second half-slot 121 can each form an antenna.
  • the constituted antenna can be a slot antenna, a left-handed antenna or an inverted F antenna.
  • the first half-slot 111 and the second half-slot 121 may be formed by a combination of multiple conductive parts.
  • the terminal device may include a conductive frame, and the conductive frame may be formed as the first half-slot 111 and the second half-slot 121 .
  • One side wall of the second half-slot 121 and the conductive frame as the side wall of the first half-slot 111 and the second half-slot 121 are not in contact with the dielectric substrate. Only the grounded part of the conductor component 2 is in contact with the dielectric substrate, so that The conductive frame and the ground part are combined to form the conductor part 2 .
  • the conductive branches 13 can also be connected to the dielectric substrate and the conductive component 2 through elastic pieces, so that the conductive branches 13 and the conductive component 2 can also be connected in a combined form.
  • the conductive branches 13 and the conductor component 2 can be an integrally formed structure.
  • the antenna formed at the first half slot 111 is defined as the first antenna 11
  • the antenna formed at the second half slot 121 is defined as the second antenna 12
  • the first feed structure 3 is provided in the first half slot 111
  • the second feed structure 4 is provided in the second half slot 121. Both the first feed structure 3 and the second feed structure 4 can be Feed both antennas.
  • the conductor component 2 is also provided with a conductive branch 13 on one side in the opening direction of the second half-slot 121.
  • the conductive branch 13 can specifically be a resonant branch.
  • the resonant branch can cooperate with the conductor component 2, the first feed structure 3 and the third
  • the two-feed structure 4 excites specific resonant frequencies, such as 2.3GHz, 3.2GHz and 4.5GHz.
  • the first end of the conductive branch 13 is connected to the first side wall 121 a of the second half-slot 121 , and a break 14 is provided between the second end of the conductive branch 13 and the second side wall 121 b of the second half-slot 121 .
  • the first half-slot 111 has two side walls in a direction perpendicular to its opening
  • the second half-slot 121 also has two side walls in a direction perpendicular to its opening.
  • the two side walls of the first half-slot 111 in the direction perpendicular to its opening are respectively defined as the first side wall 111a and the second side wall 111b of the first half-slot 111
  • the second half-slot 121 is
  • the two side walls perpendicular to the opening direction thereof are respectively defined as the first side wall 121 a and the second side wall 121 b of the second half slot 121 .
  • Figure 2 is a current distribution diagram of the antenna provided by the embodiment of the present application when no conductive branches 13 are provided at the first operating frequency, and the first feed structure 3 feeds power, and the second feed structure 4 does not feed power.
  • the first operating frequency band includes 2.3GHz.
  • the conductive branches 13 provided in this embodiment are not provided, the first antenna 11 and the second antenna 12 operate in a low frequency band, such as 2 to 2.5GHz.
  • FIG. 1 is a current distribution diagram of the antenna provided by the embodiment of the present application when no conductive branches 13 are provided at the first operating frequency, and the second feed structure 4 feeds power, and the first feed structure 3 does not feed power.
  • the operating frequency of the antenna in Figure 3 is around 2.3 GHz.
  • a conductive branch 13 is also provided on the side of the conductor component 2 located in the opening direction of the second half-slot 121.
  • the first end of the conductive branch 13 is in contact with the first side wall 121a of the second half-slot 121.
  • a break 14 is provided between the second end of the conductive branch 13 and the second side wall 121b of the second half-slot 121 .
  • the current on the conductive branch 13 coupled to the first feed structure 3 through the first side wall 121 a of the second half-slot 121 is coupled to the current through the second side wall 121 b of the second half-slot 121 .
  • the current direction at the first feed structure 3 is opposite.
  • FIG. 4 shows the current of the antenna provided by the embodiment of the present application after the conductive branches 13 are provided at the first operating frequency, and the first feed structure 3 feeds power, and the second feed structure 4 does not feed power.
  • Distribution diagram as shown in Figure 4, the conductive branches 13 can attract current, so that when the first feed structure 3 feeds power, it is directly coupled from the first side wall 121a of the second half-slot 121 to the second feed structure 4.
  • the current partially offsets the current coupled through the conductive branch 13, so that the difference between the current distribution at the second feed structure 4 and the current distribution when the second antenna 12 is working becomes larger, thereby achieving decoupling.
  • Figure 5 is a current distribution diagram of the antenna provided by the embodiment of the present application after the conductive branches 13 are provided at the first operating frequency, and the second feed structure 4 feeds power, and the first feed structure 3 does not feed power.
  • the conductive branches 13 can attract current, so that the current coupled by the second feed structure 4 to the second side wall 121 b of the second half-slot 121 is further coupled to the conductive branches 13 through the break 14 .
  • the conductive branches 13 The current in the second half slot 121 can flow to the first side wall 111a of the first half slot 111 through the first side wall 121a of the second half slot 121; at the same time, the current in the second side wall 121b of the second half slot 121 flows to to the second side wall 111b of the first half-slot 111, and further coupled to the first side wall 111a of the first half-slot 111, and the current direction coupled to the first side wall 111a of the first half-slot 111 is consistent with The currents flowing in the conductive branches 13 to the first side wall 111a of the first half-slot 111 are in opposite directions, and the currents in the opposite directions cancel each other out to achieve decoupling, so that the antenna has a high degree of isolation.
  • Figure 5 shows the current before cancellation. It should be understood that after the conductive branch 13 is provided, a current will flow from the conductive branch 13 to the first feed structure 3. This part The current will cancel the current flowing from the first feed structure 3 to the second feed structure 4 , so that most of the current direction is toward the first feed structure 3 .
  • the antenna provided in this embodiment operates in a low frequency band such as 2 to 2.5 GHz
  • a Mutual cancellation of reverse currents is achieved at another feed structure, thereby achieving decoupling of the two antennas and improving the isolation of the two antennas.
  • first feed structure 3 and the second feed structure 4 can work at the same time, and the current distribution of each feed structure when working satisfies the above corresponding conditions.
  • the antenna includes multiple operating frequency bands, such as low frequency band, medium frequency band, high frequency band, etc.
  • Each operating frequency band corresponds to different wavelengths.
  • the wavelength of the low frequency band of 2 to 2.5 GHz is relatively long, and the first antenna 11
  • a similar current distribution will be formed between the first antenna 11 and the second antenna 12 , that is, the currents are distributed in the same direction and will not produce a cancellation effect, resulting in poor isolation between the first antenna 11 and the second antenna 12 .
  • you consider adding the existing additional decoupling structure although it can improve the isolation of the antenna in the low-frequency band to a certain extent, it will also cause significant changes in the current distribution when the antenna works in the mid-frequency band and high-frequency band. As a result, the isolation of the antenna becomes worse when it operates at medium and high frequencies.
  • the antenna includes a conductive branch 13, which is adapted to the wavelength of the low-frequency band of the antenna, so that the circuit distribution of the antenna when working in the low-frequency band can be improved through the conductive branch 13, so that the current flows between the first antenna 11 and A reverse destructive effect is formed at the position between the second antennas 12, thereby achieving low-frequency decoupling and improving the isolation when the antennas operate in the low-frequency band.
  • the conductive branch 13 is only adapted to the wavelength of the low-frequency band of the antenna, it will not affect the current distribution in the medium-frequency band and the high-frequency band.
  • the wavelengths corresponding to the medium- and high-frequency bands are relatively short, and the distributed current can satisfy the period. Distribution, the area between the first antenna 11 and the second antenna 12 can achieve the effect of current reverse cancellation, so that the antenna has better isolation.
  • the conductive branches 13 can improve the isolation when the antenna works in the low frequency band, and will not affect the isolation when working in the medium and high frequency bands, that is, the antenna can have good performance in each operating frequency band. degree of isolation.
  • FIG. 6 shows the performance of the antenna provided by the embodiment of the present application when no conductive branches 13 are provided at the second operating frequency, and the first feed structure 3 feeds power, and the second feed structure 4 does not feed power.
  • the second operating frequency includes 3.2GHz.
  • the antenna without conductive branches 13 operates at medium and high frequencies, such as the 3.2GHz frequency shown in Figure 6, in the first feed structure 3 feeds, and when the second feed structure 4 does not feed, there is no coupling current at the second feed structure 4, so it has good isolation.
  • the operating frequency of the antenna in Figure 6 is around 3.2 GHz.
  • Figure 7 is a current distribution diagram of the antenna provided by the embodiment of the present application after the conductive branches 13 are provided at the second operating frequency, and the first feed structure 3 feeds power, and the second feed structure 4 does not feed power.
  • the antenna with conductive branches 13 operates at medium and high frequencies, such as the 3.2GHz frequency shown in Figure 7, the first feed structure 3 feeds power and the second feed structure 4 does not feed power.
  • the current in the conductive branch 13 will not be coupled to the second feed structure 4, and there is no coupling current at the second feed structure 4, so it still has good isolation.
  • Figure 8 is a current distribution diagram of the antenna provided by the embodiment of the present application when no conductive branches 13 are provided at the second operating frequency, and the second feed structure 4 feeds power, and the first feed structure 3 does not feed power.
  • the antenna without conductive branches 13 operates at medium and high frequencies, such as the 3.2GHz frequency shown in Figure 8, the second feed structure 4 feeds power, and the first feed structure 3 does not feed
  • the first feed structure 3 does not feed
  • Figure 9 is a current distribution diagram of the antenna provided by the embodiment of the present application after the conductive branches 13 are provided at the second operating frequency, and the second feed structure 4 feeds power, and the first feed structure 3 does not feed power.
  • the antenna with conductive branches 13 operates at medium and high frequencies, such as the 3.2GHz frequency shown in Figure 9, the second feed structure 4 feeds power and the first feed structure 3 does not feed power.
  • the current in the conductive branches 13 will not be coupled to the first feed structure 3, and there is no coupling current at the first feed structure 3, so it still has good isolation.
  • Figure 10 is a current distribution diagram of the antenna provided by the embodiment of the present application when no conductive branches 13 are provided at the third operating frequency, and the first feed structure 3 feeds power, and the second feed structure 4 does not feed power.
  • the third operating frequency includes 4.5GHz.
  • the antenna without conductive branches 13 operates at high frequency, such as operating at the 4.5GHz frequency shown in Figure 10, the first feed structure 3 feeds , when the second feeding structure 4 does not feed power, there is no coupling current at the second feeding structure 4, so it has good isolation.
  • the operating frequency of the antenna in Figure 10 is around 4.5 GHz.
  • Figure 11 is a current distribution diagram of the antenna provided by the embodiment of the present application after the conductive branches 13 are provided at the third operating frequency, and the first feed structure 3 feeds power, and the second feed structure 4 does not feed power.
  • the antenna with conductive branches 13 operates at a high frequency, such as the 4.5GHz frequency shown in Figure 11, the first feed structure 3 feeds power and the second feed structure 4 does not feed power.
  • the current in the conductive branch 13 will not be coupled to the second feed structure 4, and there is no coupling current at the second feed structure 4, so it still has good isolation.
  • Figure 12 is a current distribution diagram of the antenna provided by the embodiment of the present application when no conductive branches 13 are provided at the third operating frequency, and the second feed structure 4 feeds power, and the first feed structure 3 does not feed power.
  • the antenna without conductive branches 13 operates at a high frequency, such as the 4.5GHz frequency shown in Figure 12, the second feed structure 4 feeds power, and the first feed structure 3 does not feed
  • the antenna without conductive branches 13 operates at a high frequency, such as the 4.5GHz frequency shown in Figure 12
  • the second feed structure 4 feeds power
  • the first feed structure 3 does not feed
  • Figure 13 is a current distribution diagram of the antenna provided by the embodiment of the present application after the conductive branches 13 are provided at the third operating frequency, and the second feed structure 4 feeds power, and the first feed structure 3 does not feed power.
  • the antenna with conductive branches 13 operates at a high frequency, such as the 4.5GHz frequency shown in Figure 13, the second feed structure 4 feeds power and the first feed structure 3 does not feed power.
  • the current in the conductive branches 13 will not be coupled to the first feed structure 3, and there is no coupling current at the first feed structure 3, so it still has good isolation.
  • the antenna with the conductive branches 13 provided by the embodiment of the present application can cover the low, medium and high frequency bands of 2 to 5 GHz, has good isolation between antennas, and has a large decoupling bandwidth.
  • the antenna provided in the embodiment of the present application is a kind of two antennas formed on one conductor component 2, and the conductive branches 13 are arranged on one side of one of the antennas to improve the isolation of the antenna.
  • the conductive branches 13 are only connected with It is enough to provide a gap 14 between one antenna, instead of the traditional decoupling structure that needs to be provided between two independent antennas, and a distance needs to be maintained between the two antennas. Therefore, the antenna provided by the embodiments of the present application can achieve miniaturization of the antenna size and reduce space occupation, which is conducive to the miniaturization of customer terminal equipment and is also conducive to arranging more antennas in a limited space.
  • Figure 14 is a comparison chart of the isolation curves of the antenna shown in Figure 1 with and without conductive branches 13.
  • the dotted line represents the isolation curve of the antenna without conductive branches 13, and the solid line represents Isolation curve of an antenna with conductive stubs 13.
  • the isolation of the antenna without conductive branches 13 is relatively poor in the low-frequency band 2-2.5GHz.
  • the isolation degree is -11.632dB, while the isolation degree of the antenna with conductive branches 13 is -26.077dB. That is to say, the isolation degree of the antenna with conductive branches 13 is relatively improved. about 15dB.
  • the isolation curve of the antenna with conductive branches 13 has three isolation pits in the low frequency band 2 to 2.5 GHz. The improvement in isolation is broadband, and the isolation within the entire band is good. Above -15dB.
  • the width of the slit 14 can be greater than or equal to 1 mm, so that the conductive branches 13 can improve the isolation of the antenna when it operates in the low frequency band of 2 to 2.5 GHz.
  • the width of the break 14 is preferably 1 to 4 mm. Within this width range, the isolation in the 2 to 2.5 GHz frequency band can be effectively improved.
  • Figure 15 is a graph showing the relationship between the width change of the fracture 14 and the pit offset of the isolation curve. As shown in Figure 15, as the width of the fracture 14 further expands, the optimal value of the isolation corresponds to The frequency tends to shift toward higher frequencies. Figure 15 shows three isolation curves, namely curves a1, a2 and a3. Curve a1 corresponds to the fracture 14 with the minimum width D.
  • Curve a1 forms a pit at the frequency of 2.34GHz, and its corresponding isolation is -26.076dB; the width of the fracture 14 corresponding to the curve a2 is increased by 2mm compared to the curve a1 (D+2mm as shown in Figure 15), causing the curve a2 to form a pit at the frequency of 2.45GHz, and its corresponding isolation degree is -26.84dB; the width of the fracture 14 corresponding to the curve a3 is increased by 4mm relative to the curve a1 (D+4mm as shown in Figure 15), causing the curve a3 to form a pit at the frequency of 2.5GHz, and its corresponding isolation The degree is -26.008dB. It can be seen from this that as the width of the break 14 increases, the pit of the isolation curve (the frequency corresponding to the optimal value of the isolation) shifts to high frequency.
  • Figure 16 is a diagram showing the relationship between the length change of the conductive branch 13 and the pit offset of the isolation curve. As shown in Figure 16, as the physical length of the conductive branch 13 is further shortened, the frequency corresponding to the optimal value of the isolation There is also a tendency to shift to high frequencies. Figure 16 shows three isolation curves, namely curves b1, b2 and b3. Curve b1 corresponds to the conductive branch 13 with the maximum length L.
  • Curve b1 forms a pit at the frequency of 2.34GHz, and its corresponding isolation is -26.076dB; the length of the conductive branch 13 corresponding to curve b2 is reduced by 2mm compared to curve b1 (L-2mm as shown in Figure 16), causing curve b2 to form a pit at the frequency of 2.4GHz, and its corresponding isolation degree is -40.325dB; the length of the conductive branch 13 corresponding to curve b3 is reduced by 4mm compared to curve b1 (L-4mm as shown in Figure 16), causing curve b3 to form a pit at the frequency of 2.5GHz, and its corresponding isolation The degree is -30.347dB. It can be seen from this that as the length of the conductive branches 13 decreases, the pit of the isolation curve (the frequency corresponding to the optimal value of isolation) shifts to high frequency.
  • the width of the slit 14 and the length of the conductive branches 13 can be adjusted cooperatively to adjust the isolation degree of the antenna when operating in a set frequency band. For example, when the isolation in the 2-2.5GHz frequency band needs to be improved, according to the structural needs of different antennas, when the width of the slit 14 needs to be designed to be larger, the length of the conductive branches 13 can be shortened accordingly, so that the optimal frequency of isolation is at 2 ⁇ 2.5GHz frequency band; for another example, when the width of the slit 14 needs to be designed to be smaller, the length of the conductive branches 13 can be increased accordingly, so that the optimal frequency for isolation is within the 2 ⁇ 2.5GHz frequency band.
  • the conductor component 2 is provided with a ground portion 22 and a floor 21 , and the first half-slot 111 and the second half-slot 121 are separated by the ground portion 22 and connected to the floor 21 .
  • the floor 21 and the grounding part 22 are both parts of the conductor component 2 .
  • the grounding portion 22 is a common part of the first half-slot 111 and the second half-slot 121 , and the first half-slot 111 and the second half-slot 121 are grounded through the grounding portion 22 .
  • a part of the floor 21 may serve as the first side wall 111 a of the first half-slot 111 and the first side wall 121 a of the second half-slot 121 . That is, by forming the first half-slot 111 and the second half-slot 121 on one conductor member 2, the first antenna 11 formed at the first half-slot 111 and the second half-slot 121 can be formed.
  • the second antenna 12 is formed as an antenna, which is beneficial to reducing the overall volume of the antenna and reducing the space occupation rate.
  • both the first half-slot 111 and the second half-slot 121 extend in a first direction, which is the length direction of the first half-slot 111 and the second half-slot 121 and are grounded.
  • both the first half-slot 111 and the second half-slot 121 have portions extending in the first direction, for example, the first portion of the first half-slot 111 extends in the first direction, and The second half-slot 121 extends in the second part in the first direction, wherein the first part and the second part are separated by a grounding part, and the width of the grounding part in the first direction is less than or equal to 6 mm.
  • the above-mentioned width of the ground portion may be less than or equal to 4 mm, or less than or equal to 3 mm.
  • the ground part 22 is blocked between the first half-slot 111 and the second half-slot 121.
  • the width of the ground part 22 in the first direction is within a preset range, which can realize the miniaturization of the antenna and reduce the space occupation. Rate.
  • the end of the second side wall 121b of the second half-slot 121 and the ground portion 22 is a quarter wavelength of the antenna's target frequency band, which is beneficial to improving the energy pulling effect of the conductive branches 13.
  • the target frequency band of the antenna may be the central operating frequency band whose isolation needs to be improved.
  • the electrical length can refer to the physical length (i.e. mechanical length or geometric length) multiplied by the transmission time of an electrical or electromagnetic signal in the medium and the time required for this signal to pass through the same distance as the physical length of the medium in free space. Expressed as a ratio of time, the electrical length can satisfy the following formula:
  • L is the physical length
  • a is the transmission time of electrical or electromagnetic signals in the medium
  • b is the medium transmission time in free space.
  • the electrical length can also refer to the ratio of the physical length (i.e. mechanical length or geometric length) to the wavelength of the transmitted electromagnetic wave.
  • the electrical length can satisfy the following formula:
  • L is the physical length
  • ⁇ is the wavelength of the electromagnetic wave.
  • the value of the second side wall 121b of the second half-slot 121 can be calculated according to the above formula.
  • the physical distance H between the end and the center of the ground portion 22 is as shown in FIG. 1 . This physical distance can also be equivalent to the physical length of the second side wall 121 b of the second half-slot 121 .
  • the conductive branches 13 have a linearly extending structure. Specifically, the extension direction of the conductive branches 13 is perpendicular to the opening direction of the second half-slot 121 , and the conductive branches 13 are extending. The electrical length in the direction is less than or equal to one-quarter wavelength of the antenna's target frequency band.
  • the opening direction of the second half-slot 121 is defined as the X direction
  • the extending direction of the conductive branches 13 is defined as the Y direction
  • the X direction is perpendicular to the Y direction.
  • the vertical relationship between the X direction and the Y direction is not strictly vertical in the mathematical sense, but allows a certain deviation range, that is to say, the angle between the extension direction of the conductive branch 13 and the opening direction of the second half-slot 121 It is not strictly 90°, but can be an angle close to 90°, such as 88°, 89°, 90°, 100°, 101°, etc.
  • the electrical length of the conductive branch 13 refers to the electrical length corresponding to the distance between the first end and the second end of the conductive branch 13 .
  • the upper end surface of the conductive branch 13 is flush with the upper surface of the second side wall 121 b of the second half-slot 121 .
  • the upper end surface of the conductive branch 13 refers to the end surface of the conductive branch 13 on the side facing away from the floor 21 in the extension direction Y of the conductive branch 13 .
  • the upper surface of the second side wall 121b of the second half-slot 121 refers to the surface of the second side wall 121b of the second half-slot 121 on the side facing away from the floor 21 .
  • Figure 19 is a schematic structural diagram of an antenna provided by another embodiment of the present application.
  • the conductive branches 13 can also be non-linear structures.
  • the conductive branches 13 13 includes a first section 131 and a second section 132. The first end of the first section 131 is connected to the first side wall 121a of the second half-slot 121, and the second end of the first section 131 is connected to the second section of the second section 132. One end is connected.
  • the first section 131 and the second section 132 can be integrally formed, and the above-mentioned break 14 is provided between the second end of the second section 132 and the second side wall 121b of the second half-slot 121 .
  • the conductive branch 13 can be L-shaped, so that the height of the conductive branch 13 above the floor 21 and the break 14 can be adjusted by adjusting the lengths of the first section 131 and the second section 132 width, so that when the first antenna 11 and the second antenna 12 constitute different types of antennas, they can have an optimal traction effect on energy.
  • the sum of the electrical lengths of the first section 131 and the second section 132 is less than or equal to a quarter wavelength of the antenna's target frequency band, so that the non-linear conductive branches 13 can have a better energy pulling effect. It can be understood that the physical lengths of the first section 131 and the second section 132 can also be calculated based on the electrical lengths of the first section 131 and the second section 132 according to the above-mentioned formula. In some embodiments of the present application, the sum of the physical lengths of the first section 131 and the second section 132 can be understood as the sum of the electrical lengths of the first section 131 and the second section 132 ⁇ 10%.
  • the first feeding structure 3 includes a first coupling piece 31a.
  • the first coupling piece 31a is disposed in the first half-slot 111, and the first coupling piece 31a A first feeding point 31b is provided on 31a.
  • the conductor component 2 can be fed through the first feeding point 31b and the first coupling piece 31a.
  • a gap is formed between the peripheral edge of the first coupling piece 31a and the side wall of the corresponding first half-slot 111, forming a
  • the structure of the coupled feed enables the current to be evenly distributed on the floor 21 and has better bandwidth and omnidirectional radiation characteristics.
  • the second feeding structure 4 may also include a second coupling piece 41a.
  • the second coupling piece 41a is disposed in the second half-slot 121. There is a gap between the second coupling piece 41a and the inner wall of the second half-slot 121. gap, and a second feeding point 41b is provided on the second coupling piece 41a.
  • the specific structure and effect of the second feed structure 4 are the same as those of the first feed structure 3 and will not be described again here.
  • the first coupling piece 31a and the second coupling piece 41a can feed energy to the corresponding first half-slot 111 and the second half-slot. 121 in the hollow slot to radiate electromagnetic waves to the outside through the hollow slot, or to receive electromagnetic waves transmitted from the outside.
  • the first antenna 11 and/or the second antenna 12 constitute a left-hand antenna
  • the first coupling piece 31a and the second coupling piece 41a can feed energy to the corresponding sides of the first half-slot 111 and the second half-slot 121 wall to radiate electromagnetic waves to the outside through the side walls, or to receive electromagnetic waves transmitted from the outside.
  • the antenna formed by the first antenna 11 and the second antenna 12 may be a slot antenna or a left-handed antenna.
  • the first antenna 11 and the second antenna 12 are mainly configured as slot antennas.
  • the hollow slot between the first side wall 111a and the second side wall 111b of the first antenna 11 is the main energy radiation area, and the hollow slot can be equivalent to the radiator of the first antenna 11 .
  • the width of the first half-slot 111 refers to the distance between the first side wall 111a and the second side wall 111b of the first half-slot 111
  • the width of the second half-slot 121 refers to the second half-slot. The distance between the first side wall 121a and the second side wall 121b of 121.
  • Figure 17 is a schematic structural diagram of an antenna provided by another embodiment of the present application.
  • the gap of the second half-slot 121 increases, specifically it can be larger than 10 mm, the gap of the second half-slot 121 increases.
  • the distance between one side wall 121a and the second side wall 121b increases, causing the capacitance effect to become smaller and the field coupling to become smaller, which can transform the gap radiation into the wiring radiation, that is, through the first half-slot 121
  • the side wall 121a and the second side wall 121b radiate.
  • the second antenna 12 may constitute a left-hand antenna.
  • Figure 18 is a comparison chart of the isolation curves of the antenna shown in Figure 17 with conductive branches 13 and without conductive branches 13.
  • the antenna with conductive branches 13 operates in a wide frequency band of 1.8 to 5GHz.
  • the isolation is above -16dB, while the isolation of the antenna without conductive branches 13 is below -15dB at 1.8-2.5GHz. Therefore, the isolation of the antenna with conductive branches 13 is better than that of the antenna without conductive branches 13 Isolation.
  • the isolation degree of the antenna with conductive branches 13 is -17.432dB
  • the isolation degree of the antenna without conductive branches 13 is -10.681dB. Therefore, the isolation degree of the antenna with conductive branches 13 is relative to
  • the isolation of the antenna without conductive branches 13 is improved by about 7dB, and the improvement in isolation is broadband, and the isolation within the entire band is good.
  • Figure 19 is a schematic structural diagram of an antenna provided by yet another embodiment of the present application.
  • the first feed structure 3 includes a first feed member 32a.
  • a first feed point 32b is provided on the member 32a, and the second end of the first feed member 32a is connected to the second side wall 111b of the first half-slot 111.
  • the first power feeding member 32a is directly connected to the second side wall 111b of the first half slot 111, such as welding.
  • the first power feeding member 32a and the second side wall 111b of the first half slot 111 are integrated.
  • the shaped structure, namely the first power feed element 32 a is also part of the conductor component 2 .
  • the first antenna 11 constitutes an IFA antenna through the structure of the first feeding member 32a directly bridging the two side walls of the corresponding first half-slot 111.
  • the second side wall 111b of the first half-slot 111 can be directly fed through the first feeding member 32a, which is beneficial to simplifying the overall structure of the antenna.
  • the second feeding structure 4 may also include a second feeding part 42a.
  • the second feeding part 42a is provided with a second feeding point 42b.
  • the second feeding part 42a has a second feeding point 42b. The end is connected to the second side wall 121b of the second half slot 121.
  • the second power feeding member 42a and the first power feeding member 32a may have the same structural form and technical effects, which will not be described again here.
  • both the first power feeding member 32a and the second power feeding member 42a may be feed lines, or may be other structural members used for power feeding.
  • the first antenna 11 and the second antenna 12 both constitute IFA antennas.
  • Figure 20 is a comparison chart of the isolation curves of the antenna shown in Figure 19 with and without conductive branches 13.
  • the dotted line represents the isolation curve of the antenna without conductive branches 13, and the solid line represents Isolation curve of an antenna with conductive stubs 13.
  • the antenna band with conductive branches 13 The isolation is above -17dB, and the deepest point reaches -36.821dB.
  • the isolation within the band of the antenna without conductive branches 13 is below -13dB, and the isolation is relatively poor.
  • the isolation degree of the antenna without conductive branches 13 is -12.169dB, while the isolation degree of the antenna with conductive branches 13 is -36.821dB. That is to say, the isolation degree of the antenna with conductive branches 13
  • the relative improvement is about 24dB.
  • one of the first half-slot 111 or the second half-slot 121 may adopt a feeder line to directly feed power, while the other may still adopt a coupling plate coupling and feed structure, so that the third One of the first antenna 11 and the second antenna 12 constitutes an IFA antenna, while the other constitutes a slot antenna or a left-hand antenna.
  • the conductor component 2 can be fixed on the front side of the dielectric substrate 1, and a feed circuit can be provided on the front side of the dielectric substrate 1, while the back side of the dielectric substrate 1 is not covered with copper.
  • the first feed point and the second feed circuit The point can be electrically connected to the feed circuit, so that the feed circuit, the first antenna 11 and the second antenna 12 can be disposed on the same side of the dielectric substrate 1 without further processing on the back of the dielectric substrate 1, such as coating. Copper, metal vias or waveguides, etc. can be used to reduce the overall volume of the antenna and simplify the structure.
  • the conductor component 2 can be entirely fixed to the dielectric substrate 1, so that the antenna can be integrally disposed inside the terminal device, such as inside the casing of the terminal device, and the antenna can be enclosed by the side wall of the casing.
  • the terminal device When the terminal device includes a metal frame, for example, the terminal device is a card wireless router with a metal frame, a removable portable router, and of course it can also be a mobile phone, tablet computer, desktop computer, laptop computer, handheld computer, notebook In computers, etc., the metal frame can be used as a part of the conductor component 2 to form an antenna.
  • the conductor component 2 includes a floor 21.
  • the floor 21 is provided on the dielectric substrate 1.
  • a first half-slot 111 is formed between the floor 21 and the metal frame. and the second half-slot 121, and the metal frame may form the second side wall 111b of the first half-slot 111 and the second side wall 121b of the second half-slot 121. That is to say, only the portion of the conductor component 2 having the floor 21 can be disposed on the dielectric substrate 1 , while other portions of the conductor component 2 can be formed using metal frames and further combined to form an antenna.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Details Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

La présente invention concerne une antenne et un dispositif terminal. L'antenne comprend un substrat diélectrique ; et un composant conducteur, qui est au moins partiellement disposé sur le substrat diélectrique, le composant conducteur étant pourvu d'une première fente semi-ouverte et d'une seconde fente semi-ouverte, qui ne sont pas en communication l'une avec l'autre ; une branche électroconductrice est en outre disposée sur le côté du composant conducteur qui est situé dans une direction d'ouverture de la seconde fente semi-ouverte ; une première extrémité de la branche électroconductrice est reliée à une première paroi latérale de la seconde fente semi-ouverte, et un joint de rupture est disposé entre une seconde extrémité de la branche électroconductrice et une seconde paroi latérale de la seconde fente semi-ouverte ; une première structure d'alimentation est disposée dans la première fente semi-ouverte ; et une seconde structure d'alimentation est disposée dans la seconde fente semi-ouverte. Sur la branche électroconductrice, la direction d'un courant couplé à la première structure d'alimentation au moyen de la première paroi latérale de la seconde fente semi-ouverte est opposée à la direction d'un courant couplé à la première structure d'alimentation au moyen de la seconde paroi latérale de la seconde fente semi-ouverte, et les courants inverses s'annulent mutuellement, améliorant ainsi le degré d'isolation de deux antennes. En outre, la branche électroconductrice est disposée sur un côté d'une antenne, ce qui permet de réaliser la miniaturisation de l'antenne et d'économiser de l'espace.
PCT/CN2023/110287 2022-08-12 2023-07-31 Antenne et dispositif terminal WO2024032414A1 (fr)

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Publication number Priority date Publication date Assignee Title
US6388631B1 (en) * 2001-03-19 2002-05-14 Hrl Laboratories Llc Reconfigurable interleaved phased array antenna
CN105762525A (zh) * 2016-04-08 2016-07-13 东南大学 栅缝地共面波导馈电电容加载阶跃阻抗的半槽天线
CN109509962A (zh) * 2018-11-19 2019-03-22 惠州硕贝德无线科技股份有限公司 一种用于5g手机终端的双频mimo天线结构
CN110957576A (zh) * 2019-12-25 2020-04-03 电子科技大学 一种极低剖面微带叠层双极化基站天线及阵列
CN113540787A (zh) * 2020-04-22 2021-10-22 华为技术有限公司 天线单元及电子设备
CN113851839A (zh) * 2021-09-03 2021-12-28 荣耀终端有限公司 高隔离度天线装置以及终端设备

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6388631B1 (en) * 2001-03-19 2002-05-14 Hrl Laboratories Llc Reconfigurable interleaved phased array antenna
CN105762525A (zh) * 2016-04-08 2016-07-13 东南大学 栅缝地共面波导馈电电容加载阶跃阻抗的半槽天线
CN109509962A (zh) * 2018-11-19 2019-03-22 惠州硕贝德无线科技股份有限公司 一种用于5g手机终端的双频mimo天线结构
CN110957576A (zh) * 2019-12-25 2020-04-03 电子科技大学 一种极低剖面微带叠层双极化基站天线及阵列
CN113540787A (zh) * 2020-04-22 2021-10-22 华为技术有限公司 天线单元及电子设备
CN113851839A (zh) * 2021-09-03 2021-12-28 荣耀终端有限公司 高隔离度天线装置以及终端设备

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