Communication antenna and communication device

Abstract

The utility model provides a communication antenna and communication equipment, the communication antenna comprises a dielectric substrate, a grounding part, a first radiation part, a second radiation part and an isolation part, the grounding part, the first radiation part and the second radiation part are all arranged on the same surface of the dielectric substrate, and the first radiation part and the second radiation part are arranged at intervals along a first direction. The first radiation part and the second radiation part are located on the same side of the grounding part along a second direction, and the second direction is orthogonal to the first direction; the isolation part is arranged between the first radiation part and the second radiation part, the grounding part is connected with one end of the isolation part along the second direction, and a plurality of gaps extending along the second direction are arranged in the isolation part. The communication antenna provided by the utility model has the advantage of relatively high port isolation.

Description

Technical Field

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

[0002] Antenna miniaturization is an important trend in modern communication technology. Antenna miniaturization can help reduce the production cost of communication equipment, optimize the internal space layout of communication equipment, realize the miniaturization of communication equipment, and improve system integration. The smaller the size of a dual-port communication antenna, the higher the isolation requirement for the dual-port communication antenna. However, the isolation of dual-port communication antennas in related technologies is relatively low. Utility Model Content

[0003] The purpose of this application is to provide a communication antenna to solve the technical problem of low isolation in dual-port communication antennas in related technologies.

[0004] In one aspect, this application provides a communication antenna.

[0005] The communication antenna provided in this application includes a dielectric substrate, a ground portion, a first radiating portion, and a second radiating portion. The ground portion, the first radiating portion, and the second radiating portion are all disposed on the same surface of the dielectric substrate. The first radiating portion and the second radiating portion are arranged at intervals along a first direction, and the first radiating portion and the second radiating portion are located on the same side of the ground portion along a second direction, the second direction being orthogonal to the first direction. An isolation portion is disposed between the first radiating portion and the second radiating portion, and the ground portion is connected to one end of the isolation portion along the second direction. The isolation portion has a plurality of slits extending along the second direction.

[0006] The beneficial effects of the communication antenna provided in this application are as follows: On the one hand, the communication antenna provided in this application has a grounded isolation part between the first radiating part and the second radiating part. The isolation part has a reflection effect on the radiation field generated by the first radiating part and the radiation field generated by the second radiating part, preventing the radiation field generated by either the first radiating part or the second radiating part from coupling to the other, thereby improving the isolation between the first radiating part and the second radiating part and enhancing the isolation of the communication antenna provided in this application.

[0007] On the other hand, the communication antenna provided in this application has a plurality of slits extending in the second direction in the isolation section. By setting a plurality of slits in the isolation section, the current in the first radiating section and the current in the second radiating section are concentrated in the isolation section, reducing the current input from either the first radiating section or the second radiating section into the input port of the other, thereby further improving the isolation of the communication antenna provided in this application.

[0008] In summary, the communication antenna provided in this application has the advantage of high isolation.

[0009] Optionally, one end of the gap in the second direction communicates with the side of the isolation portion away from the grounding portion, and the other end of the gap in the second direction penetrates the isolation portion and extends to the grounding portion.

[0010] Optionally, the first radiating portion is located in the second direction between the end of the isolation portion away from the ground portion and the ground portion, and the second radiating portion is located in the second direction between the end of the isolation portion away from the ground portion and the ground portion.

[0011] Optionally, the plurality of gaps includes a first gap, a second gap, and a third gap arranged along a first direction, wherein,

[0012] The size of the second gap in the second direction is greater than at least one of the size of the first gap in the second direction and the size of the third gap in the second direction;

[0013] And / or, the width of the second gap in the first direction is less than at least one of the width of the first gap in the first direction and the width of the third gap in the first direction.

[0014] Optionally, the gap extends into the grounding portion at one end with a bent section, the bent section extending along the first direction.

[0015] Optionally, a first power supply port is connected between the first radiating part and the grounding part to power the first radiating part, and a second power supply port is connected between the second radiating part and the grounding part to power the second radiating part.

[0016] Optionally, the first radiating portion includes a first portion, a second portion, and a third portion. The first portion extends along the first direction, the second portion extends along the second direction and is connected between the first portion and the first feed port, and the third portion extends along the second direction and is connected between the first portion and the grounding portion. The second portion and the third portion are arranged at intervals along the first direction.

[0017] Optionally, the first part has a first bend at the end away from the second radiating part, the first bend extending toward the grounding part, and at least a portion of the first bend gradually increases in size in the first direction toward the grounding part.

[0018] Optionally, the first part has a second bend at one end near the second radiating part, and the second bend extends toward the grounding part.

[0019] Optionally, the second radiating part includes a first segment, a second segment, and a third segment arranged sequentially and connected along a first direction. The first segment is located on the side of the second segment close to the first radiating part. The end of the first segment along the second direction is connected to the second feed port. The resonant frequency of the first segment is less than the resonant frequency of the second segment, and the resonant frequency of the second segment is less than the resonant frequency of the third segment.

[0020] Optionally, the third segment has a third bend at the end away from the second segment, and the third bend extends toward the grounding portion.

[0021] Secondly, this application also provides a communication device.

[0022] The communication device provided in this application includes the communication antenna described in any of the above embodiments.

[0023] 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. Attached Figure Description

[0024] 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.

[0025] Figure 1 This is a schematic diagram of the structure of the communication antenna provided in an embodiment of this application;

[0026] Figure 2 A schematic diagram of the first bend in a communication antenna provided in another embodiment of this application;

[0027] Figure 3 A schematic diagram of the second bend in a communication antenna provided in another embodiment of this application;

[0028] Figure 4 This is a schematic diagram of the isolation section in a communication antenna provided in another embodiment of this application;

[0029] Figure 5 A schematic diagram of a bent section in a communication antenna provided in another embodiment of this application;

[0030] Figure 6 A schematic diagram of the second segment in a communication antenna provided in another embodiment of this application;

[0031] Figure 7 A schematic diagram of the reflection coefficient of the first radiating part of the communication antenna provided in the embodiments of this application;

[0032] Figure 8 A schematic diagram of the reflection coefficient of the second radiating part of the communication antenna provided in the embodiments of this application;

[0033] Figure 9 A schematic diagram of the transmission coefficient between the first and second radiating parts of a communication antenna provided in an embodiment of this application;

[0034] Figure 10 This is a schematic diagram of the slot of the communication antenna provided in an embodiment of this application.

[0035] The following are the labeling elements in the figure:

[0036] 100. Communication antenna;

[0037] 10. Dielectric substrate;

[0038] 20. Grounding part; 21. Hollow part;

[0039] 30. First radiating section; 31. First section; 32. Second section; 33. Third section; 34. First bending section; 35. Second bending section; 36. First input port;

[0040] 40. Second radiating section; 41. First segment; 42. Second segment; 43. Third segment; 44. Third bend; 45. Second input port;

[0041] 50. Isolation section; 51. Gap; 501. First gap; 502. Second gap; 503. Third gap; 511. Bending section; 52. Protruding strip;

[0042] 60. Through hole. Detailed Implementation

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] Now combined with the appendix Figure 1 The communication antenna 100 provided in the embodiments of this application will be described.

[0048] The communication antenna 100 provided in this application includes a dielectric substrate 10, a grounding portion 20, a first radiating portion 30, a second radiating portion 40, and an isolation portion 50.

[0049] It should be noted that the first direction in the following text is... Figure 1 The x-direction shown below, the second direction in the following text is Figure 1 The y direction shown in .

[0050] like Figure 1 As shown, the dielectric substrate 10 along Figure 1 The material of the dielectric substrate 10, as shown in the xOy plane extension, may include one or more materials with low dielectric constants, such as FR4 (epoxy resin-based glass fiber composite material), RO4003C (glass cloth reinforced, ceramic-filled hydrocarbon material), etc.

[0051] In some embodiments, the dielectric substrate 10 is FR4 (epoxy resin-based glass fiber composite material), and the relative permittivity of the dielectric substrate 10 is 4.4.

[0052] The grounding portion 20, the first radiating portion 30, and the second radiating portion 40 are all disposed on the same surface of the dielectric substrate 10. The first radiating portion 30 and the second radiating portion 40 are arranged at intervals along the first direction x, and the first radiating portion 30 and the second radiating portion 40 are both located on the same side of the grounding portion 20 along the second direction y, which is orthogonal to the first direction x.

[0053] The operating frequency of the first radiating section 30 and the operating frequency of the second radiating section 40 may be the same or different.

[0054] In some embodiments, the first radiating part 30 operates in the 5G band, with the operating frequency band of the first radiating part 30 being 5.15-5.85GHz, and the second radiating part 40 operates in the 2G, 5G, and 6G bands, with the operating frequency bands of the second radiating part 40 being 2.4-2.5GHz, 5.15-5.85GHz, and 5.925-6.425GHz.

[0055] like Figure 1 As shown, the grounding part 20 is a metal patch or metal plating layer disposed on one side of the dielectric substrate 10 along its thickness direction. The grounding part 20 is connected to the grounding plane. The first radiating part 30 and the second radiating part 40 are disposed on the same side of the grounding part 20 along the second direction y, and the first radiating part 30 and the second radiating part 40 are arranged at intervals along the first direction x. The first radiating part 30 is adapted to be connected to the first feed source, and the second radiating part 40 is adapted to be connected to the second feed source. The frequency of the electrical signal in the first feed source is different from the frequency of the electrical signal in the second feed source, so that the first radiating part 30 and the second radiating part 40 can realize dual-channel multi-frequency communication.

[0056] The isolation section 50 is located between the first radiating section 30 and the second radiating section 40, and the grounding section 20 is connected to one end of the isolation section 50 along the second direction y. The isolation section 50 is provided with a plurality of slits 51 extending along the second direction y.

[0057] like Figure 1 As shown, the isolation part 50 and the first radiating part 30 are located on the same side of the grounding part 20. The first radiating part 30, the isolation part 50 and the second radiating part 40 are arranged sequentially along the first direction x. One end of the isolation part 50 along the second direction y is connected to the grounding part 20 so that the isolation part 50 is grounded. The other end of the isolation part 50 along the second direction y extends between the first radiating part 30 and the second radiating part 40.

[0058] The beneficial effects of the communication antenna 100 provided in this application are as follows: On the one hand, the communication antenna 100 provided in this application provides a grounded isolation part 50 between the first radiating part 30 and the second radiating part 40. The isolation part 50 has a reflection effect on the radiation field generated by the first radiating part 30 and the radiation field generated by the second radiating part 40, preventing the radiation field generated by either the first radiating part 30 or the second radiating part 40 from coupling to the other, thereby improving the isolation between the first radiating part 30 and the second radiating part 40 and enhancing the isolation of the communication antenna 100 provided in this application.

[0059] On the other hand, the communication antenna 100 provided in this application has a plurality of slits 51 extending along the second direction y in the isolation section 50. By providing a plurality of slits 51 in the isolation section 50, the current in the first radiating section 30 and the current in the second radiating section 40 are concentrated in the isolation section 50, reducing the current input from either the first radiating section 30 or the second radiating section 40 into the input port of the other, thereby further improving the isolation of the communication antenna 100 provided in this application.

[0060] In summary, the communication antenna 100 provided in this application has the advantage of high isolation.

[0061] In some embodiments provided in this application, such as Figure 1 As shown, the grounding portion 20 covers the surface of the dielectric substrate 10 along one side of its thickness direction so that the grounding portion 20 has the largest coverage area on the dielectric substrate 10. The grounding portion 20 is provided with a hole portion 21 along one side of the second direction y. The first radiating portion 30, the second radiating portion 40 and the isolation portion 50 are all provided in the hole portion 21.

[0062] Therefore, the grounding part 20 has the largest area in the xOy plane to increase the capacitance of the grounding part 20, so that the grounding part 20 can better form a stable electrical connection with the grounding plane, thereby meeting the requirements of circuit design for grounding potential consistency and stability.

[0063] In addition, the first radiating part 30, the second radiating part 40 and the isolation part 50 are all disposed within a set interval, which reduces the size of the communication antenna 100 provided in this application and makes the communication antenna 100 miniaturized. In some embodiments, the size of the communication antenna 100 in the first direction x is 41mm and the size of the communication antenna 100 in the second direction y is 7.5mm.

[0064] In some embodiments, the grounding portion 20, the isolation portion 50, the first radiating portion 30, and the second radiating portion 40 are all printed on the surface of the dielectric substrate 10 to reduce the cost of the communication antenna 100.

[0065] In some embodiments provided in this application, such as Figure 1 As shown, the isolation part 50 is rectangular, that is, both ends of the grounding part 20 extend along the second direction y along the first direction x.

[0066] In other embodiments provided in this application, such as Figure 4 As shown, the isolation portion 50 protrudes towards the first radiating portion 30 at one end along the first direction x, and the grounding portion 20 protrudes towards the second radiating portion 40 at one end along the second direction y.

[0067] In some embodiments provided in this application, one end of the slit 51 along the second direction y is connected to the side of the isolation portion 50 away from the ground portion 20, and the other end of the slit 51 along the second direction y passes through the isolation portion 50 and extends to the ground portion 20.

[0068] like Figure 1 As shown, the gap 51 has an open circuit at the end away from the grounding part 20 along the second direction y, so that the current in the first radiating part 30 is further concentrated on the side of the gap 51 close to the first radiating part 30 in the first direction x, and the current in the second radiating part 40 is further concentrated on the side of the second radiating part 40 close to the second radiating part 40 in the first direction x.

[0069] Therefore, by passing through the isolation section 50 at one end of the gap 51 away from the grounding section 20 along the second direction y and having an open circuit, the current input from either the first radiating section 30 or the second radiating section 40 into the input port of the other radiating section 30 or the second radiating section 40 is reduced, thereby further improving the isolation of the communication antenna 100 provided in this application.

[0070] In some embodiments provided in this application, the first radiating part 30 is located in the second direction y between the end of the isolation part 50 away from the ground part 20 and the ground part 20, and the second radiating part 40 is located in the second direction y between the end of the isolation part 50 away from the ground part 20 and the ground part 20.

[0071] like Figure 1 As shown, the isolation portion 50 extends from one end away from the ground portion 20 along the second direction y to the end of the dielectric substrate 10 along the second direction y, so that the isolation portion 50 completely shields the space between the first radiating portion 30 and the second radiating portion 40. The isolation portion 50 reflects or absorbs most of the electromagnetic waves emitted by the first radiating portion 30 toward the second radiating portion 40, and the isolation portion 50 also reflects or absorbs most of the electromagnetic waves emitted by the second radiating portion 40 toward the first radiating portion 30.

[0072] Thus, the isolation section 50 completely shields the space between the first radiating section 30 and the second radiating section 40, preventing the radiation field generated by either the first radiating section 30 or the second radiating section 40 from coupling to the other, thereby improving the isolation between the first radiating section 30 and the second radiating section 40 and enhancing the isolation of the communication antenna 100 provided in this application.

[0073] In some embodiments provided in this application, the plurality of gaps 51 include a first gap 501, a second gap 502 and a third gap 503 arranged along a first direction x, wherein the size of the second gap 502 in the second direction y is greater than at least one of the first gap 501 and the third gap 503.

[0074] like Figure 1 As shown, the isolation section 50 is provided with a plurality of slits 51 extending along the second direction y. The ends of the plurality of slits 51 away from the grounding section 20 all penetrate the end of the isolation section 50 away from the grounding section 20 and have an open circuit.

[0075] The dimension of the second slit 502 in the second direction y is greater than at least one of the dimensions of the first slit 501 in the second direction y and the dimensions of the third slit 503 in the second direction y, such as Figure 10 As shown in (a), the length of the second slit 502 in the second direction y is greater than the length of the first slit 501 in the second direction y, and the length of the second slit 502 in the second direction y is greater than the length of the third slit 503 in the second direction y, as shown in (a). Figure 10 As shown in (b), the length dimension of the second slit 502 in the second direction y is greater than the length dimension of the third slit 503 in the second direction y.

[0076] That is, the closer the gap 51 is to the first radiating part 30 or the second radiating part 40, the smaller its size in the second direction y; the closer the gap 51 is to the center position of the isolation part 50 in the first direction x, the larger its size in the second direction y.

[0077] Therefore, when the current in either the first radiating part 30 or the second radiating part 40 is transmitted along the grounding part 20 to the other of the first radiating part 30 and the second radiating part 40, the current accumulates at the edge of the grounding part 20 in the second direction y. The larger the size of the gap 51 in the second direction y, which is closer to the center position of the isolation part 50 in the first direction x, the more effectively it can block the current transmitted along the edge of the grounding part 20 in the second direction y. The current transmitted along the edge of the grounding part 20 in the second direction y is guided into the gap 51, reducing the current input from either the first radiating part 30 or the second radiating part 40 into the input port of the other of the first radiating part 30 and the second radiating part 40, and further improving the isolation of the communication antenna 100 provided in this application.

[0078] In some embodiments provided in this application, the plurality of gaps 51 include a first gap 501, a second gap 502 and a third gap 503 arranged along a first direction x, wherein the width dimension of the second gap 502 in the first direction x is smaller than at least one of the width dimension of the first gap 501 in the first direction x and the width dimension of the third gap 503 in the first direction x.

[0079] like Figure 10 As shown in (a), the width of the second gap 502 in the first direction x is smaller than the width of the first gap 501 in the first direction x, and the width of the second gap 502 in the first direction x is smaller than the width of the third gap 503 in the first direction x, as shown in (a). Figure 10 As shown in (b), the width of the second slit 502 in the first direction x is smaller than the width of the third slit 503 in the first direction x.

[0080] Therefore, among the multiple slits 51 arranged along the first direction x, the width of the slits 51 exhibits a distribution trend of being larger at both ends and smaller in the middle in the first direction. That is, the width of the slits 51 located closer to the middle of the multiple slits 51 is smaller, and the width of the slits 51 located closer to the first radiating part 30 and the second radiating part 40 is larger.

[0081] Any gap 51 has a rib 52 formed at both ends of the isolation portion 50 in the first direction x. The rib 52 extends along the second direction y. The gap 51 includes a plurality of gaps 51 and all of the gaps 51 extend along the second direction y, so that there are a plurality of ribs 52. The plurality of ribs 52 extend along the second direction y and are arranged at intervals along the first direction x.

[0082] The second gap 502 is smaller in the first direction x than at least one of the first gap 501 and the third gap 503. That is, the gap 51 closer to the first radiating part 30 or the second radiating part 40 has a smaller width in the first direction x. That is, the ridge 52 closer to the first radiating part 30 or the second radiating part 40 has a larger width in the first direction x. The ridge 52 closer to the center of the isolation part 50 in the first direction x has a smaller width in the first direction x.

[0083] Therefore, on the one hand, the ridge 52 closer to the first radiating part 30 or the second radiating part 40 has a larger width in the first direction x, which improves the grounding effect of the isolation part 50, thereby improving the ability of the isolation part 50 to reflect electromagnetic waves emitted by the first radiating part 30 or the second radiating part 40. On the other hand, the ridge 52 closer to the center of the isolation part 50 in the first direction x has a smaller width in the first direction x, which increases the number of gaps 51 in the isolation part 50, thereby improving the ability of the isolation part 50 to concentrate the current in either the first radiating part 30 or the second radiating part 40 in the gaps 51, and further improving the isolation of the communication antenna 100 provided in this application.

[0084] In some embodiments provided in this application, the end of the gap 51 extending into the grounding portion 20 is provided with a bent section 511, which extends along a first direction x.

[0085] like Figure 5 As shown, the bent section 511 of the portion of the multiple slits 51 near the first radiating part 30 extends in the direction toward the first radiating part 30, and the bent section 511 of the portion of the multiple slits 51 near the second radiating part 40 extends in the direction toward the second radiating part 40. The bent section 511 is provided in the grounding part 20.

[0086] Taking the current in the first radiating part 30 being conducted to the second radiating part 40 through the grounding part 20 as an example, when the current in the first radiating part 30 is conducted to the second radiating part 40 through the grounding part 20, the current is concentrated at the edge of the grounding part 20 facing the second direction y. The current flows on the side of the bending section 511 facing the isolation part 50. Thus, it can be regarded as guiding the current from the first radiating part 30 to the second radiating part 40 along the grounding part 20 to the circuit break through the bending section 511, thereby concentrating and constraining the current from the first radiating part 30 to the second radiating part 40 along the grounding part 20 within the protrusion 52.

[0087] It is understandable that the above describes the effect of a portion of the bending segment 511 on the current conducted from the first radiating part 30 to the second radiating part 40 along the grounding part 20. Under the guidance of another portion of the bending segment 511, the current conducted from the second radiating part 40 to the first radiating part 30 along the grounding part 20 is also concentrated and constrained within the end of the protrusion 52 along the second direction y, thereby improving the isolation between the first radiating part 30 and the second radiating part 40.

[0088] In some embodiments provided in this application, a first power supply port is connected between the first radiating part 30 and the grounding part 20 to power the first radiating part 30, and a second power supply port is connected between the second radiating part 40 and the grounding part 20 to power the second radiating part 40.

[0089] like Figure 1 As shown, the first power supply port is connected between the grounding part 20 and the first radiating part 30, and the second power supply port is connected between the grounding part 20 and the second radiating part 40.

[0090] In some embodiments provided in this application, the first radiating part 30 includes a first part 31, a second part 32 and a third part 33. The first part 31 extends along a first direction x, the second part 32 extends along a second direction y and is connected between the first part 31 and the first feed port, and the third part 33 extends along the second direction y and is connected between the first part 31 and the grounding part 20. The second part 32 and the third part 33 are arranged at intervals along the first direction x.

[0091] The first part 31 is provided with a first bend 34 at the end away from the second radiating part 40. The first bend 34 extends toward the grounding part 20, and at least a portion of the first bend 34 gradually increases in size in the first direction x toward the grounding part 20.

[0092] like Figure 1As shown, the first radiating part 30 forms a structure similar to a Π. Under the excitation of the input signal at the first input port 36, the second part 32 and the third part 33 can be equivalent to inductors. There is a coupling capacitance between the third part 33, the second part 32 and the ground part 20. This structure can effectively adjust the input impedance of the first radiating part 30.

[0093] The second part 32 is located on the side of the third part 33 away from the second radiating part 40, and a portion of the first part 31 is located on the side of the second part 32 away from the third part 33. Thus, the portion of the first part 31 located on the side of the second part 32 away from the third part 33, the portion of the first part 31 connected between the second part 32 and the third part 33, and the second part 32 and the third part 33 respectively generate multiple resonant frequency points, thereby widening the bandwidth of the first radiating part 30.

[0094] The first bending portion 34 can be any shape such as trapezoidal, semi-circular, elliptical, or annular. One end of the first bending portion 34 along the second direction y is connected to the end of the first portion 31 away from the second radiating portion 40, and the other end of the first bending portion 34 along the second direction y extends toward the grounding portion 20 so that capacitive coupling is generated between the first bending portion 34 and the grounding portion 20, thereby further widening the bandwidth of the first radiating portion 30.

[0095] In some embodiments, such as Figure 1 As shown, the first bending portion 34 has a trapezoidal structure, and the portion of the first bending portion 34 that is closer to the grounding portion 20 has a larger dimension in the first direction x, which makes the impedance change of the first bending portion 34 gradual, that is, the impedance change at all points in the first radiating portion 30 is gradual, thereby further widening the bandwidth of the first radiating portion 30.

[0096] In other embodiments, such as Figure 2 As shown, the first bending portion 34 has a semi-circular structure to adjust the impedance and resonant frequency of the first bending portion 34 and broaden the bandwidth of the first radiating portion 30.

[0097] In some embodiments provided in this application, the first part 31 is provided with a second bent part 35 at one end near the second radiating part 40, and the second bent part 35 extends toward the grounding part 20 along the second direction y.

[0098] like Figure 1 As shown, one end of the second bend 35 along the second direction y is connected to the end of the first part 31 near the second radiating part 40, and the other end of the second bend 35 along the second direction y extends toward the grounding part 20, so that capacitive coupling is generated between the second bend 35 and the grounding part 20, thereby further widening the bandwidth of the first radiating part 30.

[0099] In other embodiments, such as Figure 3As shown, the second bend 35 is annular to adjust the impedance and resonant frequency of the second bend 35 and broaden the bandwidth of the first radiating part 30.

[0100] According to one or more of the above embodiments, the first radiating part 30 has a large bandwidth, that is, the first radiating part 30 can obtain good performance in the frequency band of 5.05GHz-6.2GHz.

[0101] In some embodiments provided in this application, the second radiating part 40 includes a first segment 41, a second segment 42 and a third segment 43 connected sequentially along a first direction x. The first segment 41 is located on the side of the second segment 42 close to the first radiating part 30. The end of the first segment 41 along the second direction y is connected to the second feed port. The resonant frequency of the first segment 41 is less than the resonant frequency of the second segment 42, and the resonant frequency of the second segment 42 is less than the resonant frequency of the third segment 43.

[0102] like Figure 1 As shown, the size of the first segment 41 in the second direction y is greater than that of the second segment 42 in the second direction y, and the size of the second segment 42 in the second direction y is greater than that of the third segment 43 in the second direction y. The electrical signal of the second radiating part 40 input to the second input port 45 passes through the first part 31, the second part 32 and the third part 33 in sequence. The size change of the first part 31, the second part 32 and the third part 33 causes the impedance of the second radiating part 40 to change in the first direction x, thereby widening the impedance bandwidth of the second radiating part 40.

[0103] In some embodiments, a through hole 60 is provided on the dielectric substrate 10. The through hole 60 penetrates the dielectric substrate 10 along the thickness direction of the dielectric substrate 10 and is located between the third segment 43 and the ground portion 20.

[0104] In some embodiments provided in this application, the end of the third segment 43 away from the second segment 42 is provided with a third bend 44, and the third bend 44 extends toward the grounding portion 20 along the second direction y.

[0105] like Figure 1 As shown, one end of the third bend 44 along the second direction y is connected to the end of the third segment 43 away from the second segment 42, and the other end of the third bend 44 along the second direction y extends toward the grounding portion 20, so that capacitive coupling is generated between the third bend 44 and the grounding portion 20, thereby further widening the bandwidth of the second radiating portion 40.

[0106] In other embodiments, such as Figure 6 As shown, the second segment 42 can be arc-shaped, thus the impedance change of the second segment 42 is gradual, thereby further widening the bandwidth of the second radiating part 40.

[0107] like Figure 7As shown, the first radiating part 30 has a good reflection coefficient in the WIFI 5G frequency band, such as Figure 8 As shown, the second radiating part 40 has a good reflection coefficient in the WIFI 2G band, WIFI 5G band and WIFI 6G band.

[0108] according to Figure 9 It can be concluded that the communication antenna 100 provided in this application has the advantage of high isolation.

[0109] The communication equipment provided in this application is described below.

[0110] The communication device provided in this application includes the communication antenna 100 in any of the above embodiments.

[0111] The communication antenna 100 provided in this application has the advantage of high isolation between the first radiating part 30 and the second radiating part 40, thereby reducing the volume of the communication antenna 100, realizing the miniaturization of the communication antenna 100, and further reducing the internal space occupied by the communication antenna 100 in the communication device provided in this application, which facilitates the optimization of the internal space of the communication device or facilitates the miniaturization of the communication device.

[0112] 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 communication antenna, characterized in that, include: Dielectric substrate; A ground portion, a first radiating portion, and a second radiating portion are disposed on the same surface of the dielectric substrate. The first radiating portion and the second radiating portion are arranged at intervals along a first direction, and both the first radiating portion and the second radiating portion are located on the same side of the ground portion along a second direction, the second direction being orthogonal to the first direction. An isolation section is provided between the first radiating section and the second radiating section, and the grounding section is connected to one end of the isolation section along the second direction. The isolation section is provided with a plurality of gaps extending along the second direction.

2. The communication antenna as described in claim 1, characterized in that: One end of the gap in the second direction is connected to the side of the isolation portion away from the grounding portion, and the other end of the gap in the second direction passes through the isolation portion and extends to the grounding portion.

3. The communication antenna as described in claim 1, characterized in that: The first radiating part is located in the second direction between the end of the isolation part away from the ground part and the ground part, and the second radiating part is located in the second direction between the end of the isolation part away from the ground part and the ground part.

4. The communication antenna as described in claim 1, characterized in that: The plurality of said gaps include a first gap, a second gap, and a third gap arranged along a first direction, wherein, The size of the second gap in the second direction is greater than at least one of the size of the first gap in the second direction and the size of the third gap in the second direction; And / or, the width of the second gap in the first direction is less than at least one of the width of the first gap in the first direction and the width of the third gap in the first direction.

5. The communication antenna as described in claim 1, characterized in that: The gap extends into the grounding portion at one end with a bent section, and the bent section extends along the first direction.

6. The communication antenna as described in any one of claims 1-5, characterized in that: A first power supply port is connected between the first radiating part and the grounding part to power the first radiating part. A second power supply port is connected between the second radiating part and the grounding part to power the second radiating part.

7. The communication antenna as described in claim 6, characterized in that: The first radiating part includes a first part, a second part, and a third part. The first part extends along the first direction, the second part extends along the second direction and is connected between the first part and the first power supply port, and the third part extends along the second direction and is connected between the first part and the grounding part. The second part and the third part are arranged at intervals along the first direction.

8. The communication antenna as described in claim 7, characterized in that: The first part has a first bend at the end away from the second radiating part, the first bend extending toward the grounding part, and at least a portion of the first bend gradually increases in size in the first direction toward the grounding part.

9. The communication antenna as described in claim 7, characterized in that: The first part has a second bend at one end near the second radiating part, and the second bend extends toward the grounding part.

10. The communication antenna as described in claim 6, characterized in that: The second radiating part includes a first segment, a second segment, and a third segment arranged sequentially and connected along a first direction. The first segment is located on the side of the second segment close to the first radiating part. The end of the first segment along the second direction is connected to the second feed port. The resonant frequency of the first segment is less than the resonant frequency of the second segment, and the resonant frequency of the second segment is less than the resonant frequency of the third segment.

11. The communication antenna as described in claim 10, characterized in that: The third segment has a third bend at its end away from the second segment, and the third bend extends toward the grounding portion.

12. A communication device, characterized in that: The communication antenna includes any one of claims 1-11.

Images