Dipole antenna and communication device

Abstract

The application provides a dipole antenna and a communication device, the dipole antenna comprising a dipole arm and a radiator, the dipole arm extending along a first direction, one end of the dipole arm along the first direction being used for being connected with a port; the radiator being symmetrical about the extending direction of the dipole arm, the radiator comprising a first radiation section extending along the first direction and a second radiation section extending along the first direction, the first radiation section and the second radiation section being arranged symmetrically about the extending direction of the dipole arm; wherein a through slot extending along a direction orthogonal to the first direction is arranged between the other end of the dipole arm along the first direction and the radiator, and the dipole arm and the radiator are connected through the through slot. The dipole antenna provided by the embodiment of the application has the advantage that the antenna size can be flexibly adjusted.

Description

Technical Field

[0001] This application belongs to the field of communication technology, and more specifically, relates to a dipole antenna and a communication device. Background Technology

[0002] A dipole antenna consists of two symmetrical conductors of equal and parallel length. One end of each conductor is connected by a feed point, while the other end remains open, forming a symmetrical structure. When the currents in the two conductors are opposite in the vertical direction, the dipole antenna generates a horizontally polarized beam. However, horizontally polarized dipole antennas in related technologies suffer from the problem of not being able to flexibly adjust their size. Utility Model Content

[0003] The purpose of this application is to provide a dipole antenna to solve the technical problem of existing horizontally polarized dipole antennas that cannot flexibly adjust the antenna size.

[0004] In one aspect, embodiments of this application provide a dipole antenna.

[0005] The dipole antenna provided in this application embodiment includes a vibrating arm extending along a first direction; and a radiator symmetrical about the extension direction of the vibrating arm. The radiator includes a first radiating segment extending along the first direction and a second radiating segment extending along the first direction, the first radiating segment and the second radiating segment being arranged symmetrically about the extension direction of the vibrating arm. One end of the vibrating arm along the first direction is used to connect to a port, and a through slot extending orthogonally to the first direction is provided between the other end of the vibrating arm and the radiator at the first direction. The vibrating arm and the radiator are coupled together through the through slot.

[0006] The beneficial effects of the dipole antenna provided in this application embodiment are as follows: Compared with the prior art, the first radiating segment and the second radiating segment of the dipole antenna provided in this application embodiment are symmetrically arranged about the extension direction of the dipole arm, so that the current in the first radiating segment and the second radiating segment have the same direction and generate radiation in the same direction. The dipole arm and the radiator are coupled and connected through a through slot. After the electrical signal in the dipole arm is conducted to the through slot, it generates two currents in opposite directions. The electromagnetic waves generated by the current in the dipole arm cancel each other out so that the dipole arm does not radiate the beam outward, but only radiates the beam outward through the first radiating segment and the second radiating segment. The difference between the phase of the electrical signal in the dipole arm and the phase of the electrical signal in the first radiating segment is any value and will not cause the beam generated by the dipole arm to affect the radiation intensity of the beam generated by the first radiating segment or the second radiating segment. Thus, the distance between the first radiating segment and the dipole arm is not limited, and the dipole antenna provided in this application embodiment has the advantage of flexible size adjustment.

[0007] Optionally, the radiator further includes a transmission segment extending along a second direction, which is orthogonal to the first direction. One end of the transmission segment is connected to the first radiating segment, and the other end of the transmission segment is connected to the second radiating segment.

[0008] The transmission segment is symmetrical about the extension direction of the vibrator arm, and the vibrator arm and the transmission segment are coupled together through the through slot.

[0009] Optionally, the first radiating segment and the vibrating arm are located on the same side of the transmission segment in the first direction.

[0010] Optionally, the distance between the first radiating segment and the second radiating segment in the second direction is a positive integer multiple of the wavelength of the electrical signal in the port.

[0011] Optionally, the length of the first radiating segment in the first direction is one-quarter of the wavelength of the electrical signal within the port in vacuum;

[0012] The length of the second radiating segment in the first direction is one-quarter of the wavelength of the electrical signal in the port in vacuum.

[0013] Optionally, the length of the oscillator arm in the first direction is one-quarter of the wavelength of the electrical signal in the port in a vacuum.

[0014] Optionally, the dipole antenna further includes an equivalent ground located on the side of the vibrator arm away from the through slot in the first direction, and both the first radiating segment and the second radiating segment are connected to the equivalent ground.

[0015] Optionally, one end of the oscillator arm connected to the port is equivalently coupled to the port.

[0016] Secondly, this application also provides a communication device.

[0017] The communication device provided in this application includes the dipole antenna described in any of the above embodiments.

[0018] It is understandable that the beneficial effects of the second aspect mentioned above can be found in the relevant descriptions in the first aspect mentioned above, and will not be repeated here.

[0019] Optionally, the communication device includes a plurality of dipole antennas, the plurality of dipole antennas including a first antenna and a second antenna, wherein the extension direction of the dipole arm of the first antenna intersects the extension direction of the dipole arm of the second antenna. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a dipole antenna provided in an embodiment of this application;

[0022] Figure 2 A schematic diagram of the current of a dipole antenna provided in an embodiment of this application;

[0023] Figure 3 A graph showing the relationship between the radiation intensity and the port electrical signal frequency of the dipole antenna provided in this embodiment of the application when the distance between the first radiation segment and the second radiation segment is 52 mm.

[0024] Figure 4 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application.

[0025] The following are the labeling elements in the figure:

[0026] 100. Dipole antenna;

[0027] 10. Vibrating arm;

[0028] 20. Radiator; 21. First radiating section; 22. Second radiating section; 23. Transmission section;

[0029] 30. Equivalently;

[0030] 40. Port;

[0031] 50. Dielectric substrate;

[0032] 101. First antenna; 102. Second antenna;

[0033] 200. Communication equipment. Detailed Implementation

[0034] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0035] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0036] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0038] Please refer to the following: Figure 1 and Figure 2 The dipole antenna 100 provided in the embodiments of this application will now be described.

[0039] It should be noted that the first direction in the following text is... Figure 1 and Figure 2 The x-direction shown below, the second direction in the following text is Figure 1 and Figure 2 The y direction shown in .

[0040] The dipole antenna 100 provided in this application embodiment includes a vibrating arm 10 and a radiator 20.

[0041] In some embodiments (not shown in the figures), the vibrating arm 10 and the radiator 20 can be wires, so that the dipole antenna 100 provided in this application embodiment forms a dipole antenna.

[0042] In other embodiments, such as Figure 1 and Figure 2 As shown, the vibrating arm 10 and the radiator 20 can be patches, so that the dipole antenna 100 provided in this embodiment of the application forms a patch antenna.

[0043] The vibrator arm 10 extends along the first direction x, and one end of the vibrator arm 10 along the first direction x is used to connect to the port 40.

[0044] The vibrator arm 10 can be a wire or a patch printed on a substrate, such as... Figure 1 and Figure 2 As shown, the length of the oscillator arm 10 extends along the first direction x, and one end of the oscillator arm 10 is electrically connected to the port 40 so that the electrical signal in the port 40 is conducted to the oscillator arm 10, and the current in the oscillator arm 10 is conducted along the first direction x.

[0045] The radiator 20 is symmetrical about the extension direction of the oscillator arm 10. The radiator 20 includes a first radiating segment 21 extending along the first direction x and a second radiating segment 22 extending along the first direction x. The first radiating segment 21 and the second radiating segment 22 are arranged symmetrically about the extension direction of the oscillator arm 10.

[0046] The radiator 20 can be a wire or a patch printed on a substrate. For example... Figure 1 and Figure 2 As shown, the radiator 20 is symmetrical about the extension direction of the oscillator arm 10, that is, the axis of symmetry of the radiator 20 coincides with the axis of the oscillator arm 10. The radiator 20 includes a first radiating segment 21 extending along the first direction x and a second radiating segment 22 extending along the first direction x. The current in the first radiating segment 21 is conducted along the first direction x to generate a beam with the polarization direction of the first direction x in the first radiating segment 21. The current in the second radiating segment 22 is conducted along the first direction x to generate a beam with the polarization direction of the first direction x in the second radiating segment 22. Since the radiator 20 is symmetrical about the extension direction of the oscillator arm 10, on the one hand, the electrical signal in the first radiating segment 21 and the electrical signal in the second radiating segment 22 are in phase, and on the other hand, the beams generated by the first radiating segment 21 and the beams generated by the second radiating segment 22 are symmetrical about the extension direction of the oscillator arm 10.

[0047] It is understood that the radiator 20 also includes a portion extending along the second direction y. Since the radiator 20 is symmetrical about the extension direction of the oscillator arm 10, the current direction in the portion of the radiator 20 between the oscillator arm 10 and the first radiating segment 21 is opposite to the current direction in the portion of the radiator 20 between the oscillator arm 10 and the second radiating segment 22. The beam generated by the portion of the radiator 20 between the oscillator arm 10 and the first radiating segment 21 cancels out the beam generated by the portion of the radiator 20 between the oscillator arm 10 and the second radiating segment 22, so that the portion of the radiator 20 extending along the second direction y does not radiate a beam. It can be understood that the radiator 20 radiates a beam only through the first radiating segment 21 and the second radiating segment 22.

[0048] The other end of the vibrator arm 10 in the first direction x is provided with a through groove extending orthogonally to the first direction x between it and the radiator 20. The vibrator arm 10 and the radiator 20 are coupled and connected through the through groove.

[0049] like Figure 1and Figure 2 As shown, the through slot extends along the second direction y, and the through slot arranges the oscillator arm 10 and the radiator 20 at intervals along the first direction x, so that the end of the oscillator arm 10 away from the port 40 is coupled to the radiator 20 through the through slot.

[0050] Therefore, when the electrical signal in port 40 is conducted along the vibrating arm 10 to the side of the through slot near the vibrating arm 10, on the one hand, the electrical signal in the vibrating arm 10 causes a change in the electric field in the radiator 20 through coupling, and conducts the electrical signal into the radiator 20. On the other hand, a current opposite to the original electrical signal in the vibrating arm 10 is generated at the through slot. The current reflected through the through slot is opposite in direction to the electrical signal input to the vibrating arm 10 at port 40, thus canceling each other out and preventing the vibrating arm 10 from radiating a beam to the outside.

[0051] The beneficial effects of the dipole antenna 100 provided in this application embodiment are as follows: Compared with the prior art, the first radiating segment 21 and the second radiating segment 22 of the dipole antenna 100 provided in this application embodiment are symmetrically arranged about the extension direction of the dipole arm 10, so that the current in the first radiating segment 21 and the second radiating segment 22 have the same direction and generate radiation in the same direction. The dipole arm 10 and the radiator 20 are coupled and connected through a through slot. After the electrical signal in the dipole arm 10 is conducted to the through slot, it generates two currents in opposite directions. The electromagnetic waves generated by the current in the dipole arm 10 cancel each other out so that the dipole arm 10 does not radiate a beam to the outside, but only radiates a beam to the outside through the first radiating segment 21 and the second radiating segment 22. The difference between the phase of the electrical signal in the dipole arm 10 and the phase of the electrical signal in the first radiating segment 21 is any value and will not cause the beam generated by the dipole arm 10 to affect the radiation intensity of the beam generated by the first radiating segment 21 or the second radiating segment 22. Thus, the distance between the first radiating segment 21 and the dipole arm 10 is not limited, so that the dipole antenna 100 provided in this application embodiment has the advantage of flexible size adjustment.

[0052] In some embodiments provided in this application, the radiator 20 further includes a transmission segment 23 extending along the second direction y, one end of the transmission segment 23 being connected to the first radiation segment 21, and the other end of the transmission segment 23 being connected to the second radiation segment 22.

[0053] The transmission segment 23 is symmetrical about the extension direction of the vibrator arm 10, and the vibrator arm 10 and the transmission segment 23 are coupled together through a through slot.

[0054] In some embodiments, transmission segment 23 is a conductor; in other embodiments, such as... Figure 1 and Figure 2 As shown, transmission segment 23 is a patch.

[0055] like Figure 1 and Figure 2As shown, the transmission segment 23 extends along the second direction y. The transmission segment 23, the first radiation segment 21, and the second radiation segment 22 together form a radiator 20. The transmission segment 23 is used to transmit the electrical signal in the vibrator arm 10 to the first radiation segment 21 and the second radiation segment 22. The midpoint of the transmission segment 23 in the second direction y is coupled to the end of the vibrator arm 10 away from the port 40 in the first direction x through a through slot.

[0056] Therefore, the length of the transmission segment 23 in the oscillator arm 10 and the first radiating segment 21 is the same as the length of the transmission segment 23 in the oscillator arm 10 and the second radiating segment 22. Moreover, the current direction of the portion of the transmission segment 23 between the oscillator arm 10 and the first radiating segment 21 is opposite to the current direction of the portion of the transmission segment 23 between the oscillator arm 10 and the second radiating segment 22. As a result, the beam generated by the portion of the transmission segment 23 between the oscillator arm 10 and the first radiating segment 21 and the beam generated by the portion of the transmission segment 23 between the oscillator arm 10 and the second radiating segment 22 are opposite in direction and can cancel each other out. Thus, it can be understood that the transmission segment 23 does not radiate a beam outward.

[0057] In some embodiments provided in this application, the first radiating segment 21 and the vibrating arm 10 are located on the same side of the transmission segment 23 in the first direction x, and the second radiating segment 22 and the vibrating arm 10 are located on the same side of the transmission segment 23 in the first direction x.

[0058] like Figure 1 and Figure 2 As shown, the first radiating segment 21 and the second radiating segment 22 are located on both sides of the dipole arm 10 in the second direction y, and the current directions in the first radiating segment 21 and the second radiating segment 22 are the same, thereby making the first radiating segment 21 and the second radiating segment 22 radiate in phase. The beam generated by the first radiating segment 21 and the beam generated by the second radiating segment 22 are superimposed on each other, thereby improving the gain of the dipole antenna 100 provided in this application embodiment.

[0059] In some embodiments provided in this application, the distance between the first radiation segment 21 and the second radiation segment 22 in the second direction y is a positive integer multiple of the wavelength of the electrical signal in port 40.

[0060] like Figure 1 and Figure 2 As shown, the length of the transmission segment 23 in the second direction y is the distance between the first radiation segment 21 and the second radiation segment 22 in the second direction y, and the length of the transmission segment 23 in the second direction y is a positive integer multiple of the wavelength of the electrical signal in port 40.

[0061] Therefore, when the distance between the first radiating segment 21 and the second radiating segment 22 is an integer multiple of the wavelength, the phase difference between the electromagnetic waves emitted from the first radiating segment 21 and the second radiating segment 22 at a certain point in space during propagation is an integer multiple of the wavelength of the electrical signal. According to the electromagnetic wave interference theory, a phase difference that is an integer multiple of the wavelength means that the two waves are in phase at that point and will undergo constructive interference, thereby increasing the main lobe width and gain of the dipole antenna 100 provided in this application embodiment, suppressing the sidelobes, and enabling the dipole antenna 100 provided in this application embodiment to have a larger radiation intensity.

[0062] like Figure 3 As shown, when the distance between the first radiating segment 21 and the second radiating segment 22 of the dipole antenna 100 provided in this application embodiment is 52mm, the dipole antenna 100 provided in this application embodiment has the maximum radiation intensity at 5.75GHz (λ≈52mm). The distance between the first radiating segment 21 and the second radiating segment 22 is one wavelength of the 5.75GHz electrical signal, and the radiation intensity is greater than 3.02dB. That is, when the wavelength of the electrical signal in port 40 and the distance between the first radiating segment 21 and the second radiating segment 22 are both 52mm, the dipole antenna 100 provided in this application embodiment has a large radiation intensity.

[0063] In some embodiments provided in this application, the length of the first radiating segment 21 in the first direction x is one-quarter of the wavelength of the electrical signal in the vacuum within the port 40;

[0064] The length of the second radiation segment 22 in the first direction x is one-quarter of the wavelength of the electrical signal inside port 40 in vacuum.

[0065] The length of the oscillator arm 10 in the first direction x is one-quarter of the wavelength of the electrical signal inside port 40 in vacuum.

[0066] Therefore, on the one hand, reducing the length of the dipole arm 10, the first radiating segment 21, and the second radiating segment 22 makes the structure of the dipole antenna 100 provided in this application embodiment more compact, realizing the miniaturization of the antenna. On the other hand, on the quarter-wavelength radiator 20, the current distribution exhibits a sinusoidal distribution characteristic that gradually decreases from the feed point to the end. Taking the first radiating segment 21 as an example, the current is largest at the end of the first radiating segment 21 connected to the transmission segment 23, while the current is zero at the end of the first radiating segment 21 far from the transmission segment 23. This distribution makes the energy more concentrated in the middle of the first radiating segment 21, reducing the energy loss caused by the invalid current at the end, and improving the radiation efficiency of the dipole antenna 100 provided in this application embodiment.

[0067] In some embodiments provided in this application, the dipole antenna 100 further includes an equivalent ground 30, which is located on the side of the vibrator arm 10 away from the through slot in the first direction x, and the first radiating segment 21 and the second radiating segment 22 are both connected to the equivalent ground 30.

[0068] like Figure 1 and Figure 2 As shown, the equivalent dimension of 30 in the second direction y is greater than or equal to the dimension of radiator 20 in the second direction y, the equivalent dimension of 30 in the first direction x is greater than or equal to the dimension of radiator 20 in the first direction x, and the equivalent dimension of 30 in the first direction x is greater than the dimension of oscillator arm 10 in the first direction x.

[0069] The first radiating segment 21 is directly connected to one end of the equivalent ground 30 in the second direction y, and the second radiating segment 22 is directly connected to the other end of the equivalent ground 30 in the second direction y.

[0070] Therefore, by using the equivalent ground 30 to reduce the current at the end of the first radiating segment 21 away from the transmission segment 23 to zero, and by using the equivalent ground 30 to reduce the current at the end of the second radiating segment 22 away from the transmission segment 23 to zero, the energy is more concentrated in the middle of the first radiating segment 21 and the middle of the second radiating segment 22, reducing the energy loss caused by the invalid current at the end, and further improving the radiation efficiency of the dipole antenna 100 provided in this application embodiment.

[0071] In some embodiments provided in this application, one end of the oscillator arm 10 connected to port 40 is coupled to the equivalent ground 30.

[0072] like Figure 1 and Figure 2 As shown, port 40 is connected to one end of the oscillator arm 10 in the first direction x that faces the equivalent ground 30, and the end of the oscillator arm 10 in the first direction x that faces the equivalent ground 30 is coupled to the equivalent ground 30.

[0073] Therefore, on the one hand, by optimizing the input impedance of port 40 through equivalent ground 30, the bandwidth of the dipole antenna 100 provided in this application embodiment is improved; on the other hand, by providing zero potential to port 40 through equivalent ground 30, the radiation quality of the dipole antenna 100 provided in this application embodiment is improved.

[0074] In some embodiments provided in this application (not shown in the figures), there is at least one first radiation segment 21 and at least one second radiation segment 22.

[0075] In some embodiments (not shown in the figure), there are multiple first radiation segments 21 and one second radiation segment 22. The multiple first radiation segments 21 are located on the same side of the oscillator arm 10 in the second direction y. One of the multiple first radiation segments 21 is arranged symmetrically with the second radiation segment 22 about the axis of the oscillator arm 10, and the distance between two adjacent first radiation segments 21 is an integer multiple of the wavelength of the electrical signal in the port 40.

[0076] In other embodiments (not shown in the figures), there are multiple second radiation segments 22 and one first radiation segment 21. The multiple second radiation segments 22 are located on the same side of the oscillator arm 10 in the second direction y. One of the multiple second radiation segments 22 is arranged symmetrically with the first radiation segment 21 about the axis of the oscillator arm 10, and the distance between two adjacent second radiation segments 22 is an integer multiple of the wavelength of the electrical signal in the port 40.

[0077] In some embodiments (not shown in the figure), there are multiple first radiation segments 21, which are located on the same side of the oscillator arm 10 in the second direction y. There are multiple second radiation segments 22, which are located on the other side of the oscillator arm 10 in the second direction y. The multiple first radiation segments 21 and the multiple second radiation segments 22 are arranged symmetrically about the axis of the oscillator arm 10 in a one-to-one correspondence, and the distance between two adjacent first radiation segments 21 is an integer multiple of the wavelength of the electrical signal in the port 40.

[0078] The applicant conducted multiple tests on the dipole antenna 100 provided in this application, in the frequency bands of 5.15 GHz and 5.82 GHz:

[0079] When the distance between the first radiating segment 21 and the second radiating segment 22 is 40mm, and the vibrating arm 10 is directly connected to the radiator 20, that is, there is no through slot between the vibrating arm 10 and the radiator 20, the antenna gain at 5.15GHz is 1.7dBi, and the antenna gain at 5.85GHz is 1.3dBi.

[0080] When the distance between the first radiating segment 21 and the second radiating segment 22 is 40 mm, and a through slot is provided between the dipole arm 10 and the radiator 20, the antenna gain is 1.6 dBi at 5.15 GHz and 1.9 dBi at 5.85 GHz. Therefore, it can be seen that the dipole antenna 100 provided in this application embodiment, by providing a through slot between the dipole arm 10 and the radiator 20, can still improve the gain of the dipole antenna 100 provided in this application even when the distance between the first radiating segment 21 and the second radiating segment 22 is not an integer multiple of the wavelength corresponding to the antenna operating frequency, giving the dipole antenna 100 provided in this application the advantage of flexible size adjustment.

[0081] When the distance between the first radiating segment 21 and the second radiating segment 22 is 50 mm, and a through slot is provided between the vibrating arm 10 and the radiator 20, the antenna gain is 2.7 dBi at 5.15 GHz and 3.0 dBi at 5.85 GHz. Therefore, it can be seen that when the distance between the first radiating segment 21 and the second radiating segment 22 is equal to an integer multiple of the wavelength corresponding to the antenna operating frequency, the dipole antenna 100 provided in this application has a high radiation intensity.

[0082] In some embodiments provided in this application, such as Figure 1 and Figure 2 As shown, the dipole antenna 100 provided in this application embodiment is a patch antenna. The dipole antenna 100 also includes a dielectric substrate 50. The material of the dielectric substrate 50 may include one or more materials with low dielectric constant, such as FR4 (epoxy resin-based glass fiber composite material), RO4003C (glass cloth reinforced, ceramic-filled hydrocarbon material), etc.

[0083] In some embodiments, the dielectric substrate 50 is FR4 (epoxy resin-based glass fiber composite material), and the dielectric constant of the dielectric substrate 50 is 4.4.

[0084] In some embodiments, such as Figure 1 and Figure 2 As shown, the oscillator arm 10 and the radiator 20 are both located on the same side of the dielectric substrate 50 in the thickness direction.

[0085] In other embodiments (not shown in the figures), the oscillator arm 10 and the radiator 20 are respectively disposed on both sides of the dielectric substrate 50 in the thickness direction.

[0086] The following is combined with Figure 4 The communication device 200 provided in the embodiments of this application will be described.

[0087] The communication device 200 provided in this application includes the dipole antenna 100 in any of the above embodiments.

[0088] The dipole antenna 100 provided in this application embodiment has the advantage of flexible size adjustment, so that the size of the dipole antenna 100 provided in this application embodiment can be adjusted according to the size of the internal space of the communication device 200, thereby giving the communication device 200 provided in this application embodiment the advantage of high internal space utilization.

[0089] In some embodiments provided in this application, the communication device 200 includes a plurality of dipole antennas 100, the plurality of dipole antennas 100 including a first antenna 101 and a second antenna 102, wherein the extension direction of the vibrating arm 10 of the first antenna 101 intersects the extension direction of the vibrating arm 10 of the second antenna 102.

[0090] like Figure 4 As shown, the first antenna 101 generates a polarization direction of... Figure 4 The beam in direction a shown in the diagram, the second antenna 102 generates a polarization direction of... Figure 4 The beam in direction b shown in the figure improves the isolation between the first antenna 101 and the second antenna 102 through polarization isolation, so that the communication device 200 provided in this application embodiment has the advantage of dual polarization radiation and improves the beam coverage width.

[0091] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A dipole antenna, characterized in that, include: The oscillator arm extends along the first direction; The radiator is symmetrical about the extension direction of the oscillator arm. The radiator includes a first radiating segment extending along the first direction and a second radiating segment extending along the first direction. The first radiating segment and the second radiating segment are arranged symmetrically about the extension direction of the oscillator arm. Wherein, one end of the vibrating arm along the first direction is used to connect to the port, and the other end of the vibrating arm along the first direction is provided with a through groove extending orthogonally to the first direction between it and the radiator, and the vibrating arm and the radiator are coupled and connected through the through groove.

2. The dipole antenna as described in claim 1, characterized in that: The radiator further includes a transmission segment extending along a second direction, which is orthogonal to the first direction. One end of the transmission segment is connected to the first radiating segment, and the other end of the transmission segment is connected to the second radiating segment. The transmission segment is symmetrical about the extension direction of the vibrator arm, and the vibrator arm and the transmission segment are coupled together through the through slot.

3. The dipole antenna as described in claim 2, characterized in that: The first radiating segment and the vibrating arm are located on the same side of the transmission segment in the first direction.

4. The dipole antenna as described in claim 2, characterized in that: The distance between the first radiation segment and the second radiation segment in the second direction is a positive integer multiple of the wavelength of the electrical signal in the port.

5. The dipole antenna as described in claim 1, characterized in that: The length of the first radiating segment in the first direction is one-quarter of the wavelength of the electrical signal inside the port in vacuum. The length of the second radiating segment in the first direction is one-quarter of the wavelength of the electrical signal in the port in vacuum.

6. The dipole antenna as described in claim 1, characterized in that: The length of the oscillator arm in the first direction is one-quarter of the wavelength of the electrical signal inside the port in a vacuum.

7. The dipole antenna as described in any one of claims 1-6, characterized in that: The dipole antenna also includes an equivalent ground located on the side of the vibrator arm away from the through slot in the first direction, and both the first radiating segment and the second radiating segment are connected to the equivalent ground.

8. The dipole antenna as described in claim 7, characterized in that: One end of the vibrator arm connected to the port is equivalently coupled to the port.

9. A communication device, characterized in that: The dipole antenna included in any one of claims 1-8.

10. The communication device as described in claim 9, characterized in that: The communication device includes a plurality of dipole antennas, the plurality of dipole antennas including a first antenna and a second antenna, wherein the extension direction of the dipole arm of the first antenna intersects the extension direction of the dipole arm of the second antenna.

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