Antenna and communication equipment

Abstract

The embodiment of the utility model relates to the technical field of wireless communication, and discloses an antenna and a communication device, the antenna comprises a dielectric plate, a radio frequency ground piece, a feed piece and a radiation piece, the dielectric plate is provided with a first surface and a second surface which are oppositely arranged, the radio frequency ground piece is arranged on the first surface, the feed piece is arranged on the second surface, and the radiation piece is arranged on the first surface. The radiation part is arranged on the second surface, one end of the radiation part is connected to the feed part, the radiation part is trapezoidal, and the other end of the radiation part is provided with an opening. Through the above mode, the antenna provided by the embodiment of the utility model realizes ultra wide band through the trapezoidal radiation piece and the opening formed in the radiation piece, and a resonance unit does not need to be arranged at a position adjacent to the radiation piece, so that the occupied space of the antenna is reduced, and the antenna can be applied to miniaturized communication equipment.

Description

Technical Field

[0001] This utility model relates to the field of wireless communication technology, and in particular to an antenna and a communication device. Background Technology

[0002] The mm-wave planar omnidirectional ultra-wideband antenna is an antenna specifically designed for the mm-wave band, featuring a planar structure, omnidirectional radiation, and ultra-wideband characteristics. Its planar design facilitates antenna integration and manufacturing.

[0003] During the implementation of this utility model embodiment, the inventors discovered that: currently, in order to achieve ultra-wideband, mm-wave planar omnidirectional ultra-wideband antennas usually introduce a resonant point by setting a resonant unit near the radiating element, thereby increasing the bandwidth. This results in the antenna occupying a large space, making it impossible to apply the antenna to miniaturized communication devices. Utility Model Content

[0004] The main technical problem solved by this utility model embodiment is to provide an antenna and communication device that solves the technical problem that the large space occupied by the antenna prevents it from being used in miniaturized communication devices.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this utility model embodiment is: to provide an antenna, including a dielectric substrate, a radio frequency ground component, a feed component, and a radiating component. The dielectric substrate has a first surface and a second surface disposed opposite to each other. The radio frequency ground component is disposed on the first surface, the feed component is disposed on the second surface, and the radiating component is disposed on the second surface. One end of the radiating component is connected to the feed component. The radiating component is trapezoidal in shape, and the other end of the radiating component is provided with an opening.

[0006] Optionally, the trapezoid is an isosceles trapezoid.

[0007] Optionally, the opening extends through the other end of the radiating element.

[0008] Optionally, the opening is square in shape.

[0009] Optionally, the length of one end of the radiating element is less than the length of the other end of the radiating element.

[0010] Optionally, the central axial surface of the power feeder, the central axial surface of the radiating element, the central axial surface of the dielectric substrate, the central axial surface of the radio frequency ground element, and the central axial surface of the opening are coplanar.

[0011] Optionally, one end of the radio frequency ground element extends to the edge of one end of the first surface.

[0012] Optionally, the radio frequency ground element extends to the edges of both sides of the first surface.

[0013] Optionally, the radio frequency ground element is rectangular in shape.

[0014] To solve the above-mentioned technical problems, another technical solution adopted in this utility model embodiment is to provide a communication device, including the antenna described above.

[0015] In this embodiment of the invention, the antenna includes a dielectric substrate, an RF ground component, a feed component, and a radiating component. The dielectric substrate has a first surface and a second surface disposed opposite to each other. The RF ground component is disposed on the first surface, the feed component is disposed on the second surface, and the radiating component is disposed on the second surface. One end of the radiating component is connected to the feed component. The radiating component is trapezoidal in shape, and the other end of the radiating component has an opening. By using a trapezoidal radiating component with an opening, the antenna achieves ultra-wideband capability, eliminating the need for a resonant element adjacent to the radiating component, thus reducing the antenna's footprint and enabling its application in miniaturized communication devices. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the specific embodiments of this utility model or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.

[0017] Figure 1 This is a schematic diagram of the antenna structure provided in an embodiment of the present invention;

[0018] Figure 2 This is another schematic diagram of the antenna structure provided in this embodiment of the utility model;

[0019] Figure 3 This is an exploded view of the antenna structure provided in this embodiment of the utility model.

[0020] Figure 4 This is a parameter illustration of a simulation example of the antenna provided in this embodiment of the utility model. Figure 1 ;

[0021] Figure 5 This is a parameter illustration of a simulation example of the antenna provided in this embodiment of the utility model. Figure 2 ;

[0022] Figure 6 The reflection coefficient of the antenna provided in this embodiment of the present invention varies with different parameters L. L A schematic diagram of the changing relationship;

[0023] Figure 7The reflection coefficient of the antenna provided in this embodiment of the present invention varies with different parameters L. H A schematic diagram of the changing relationship;

[0024] Figure 8 This is a schematic diagram showing the relationship between the reflection coefficient of the antenna provided in this embodiment and different parameters H.

[0025] Figure 9 The reflection coefficient of the antenna provided in this embodiment of the present invention varies with different parameters L. R A schematic diagram of the changing relationship;

[0026] Figure 10 This is a schematic diagram of the simulation results of the reflection coefficient of an antenna simulation example provided in this utility model embodiment;

[0027] Figure 11 This is a schematic diagram showing the simulation results of the maximum gain and radiation efficiency of the antenna provided in this embodiment of the present invention.

[0028] Figure 12 This is a simulation example of the antenna provided in this embodiment of the present invention, showing its radiation pattern at 10.0 GHz.

[0029] Figure 13 This is a simulation example of the antenna provided in this embodiment of the present invention, showing its radiation pattern at 22.0 GHz.

[0030] Figure 14 This is a simulation example of the antenna provided in this utility model, showing its radiation pattern at 34.0 GHz.

[0031] Explanation of reference numerals in the attached figures:

[0032] 100. Antenna; 1. Dielectric substrate; 11. First surface; 12. Second surface; 2. Radio frequency ground; 3. Feeding component; 4. Radiation component; 41. Opening. Detailed Implementation

[0033] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "inner," "outer," "vertical," "horizontal," etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model 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 utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0035] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] Please see Figures 1-3 This application provides an antenna 100, which includes a dielectric substrate 1, an RF ground component 2, a feed component 3, and a radiating component 4. The dielectric substrate 1 has a first surface 11 and a second surface 12 disposed opposite to each other. The RF ground component 2 is disposed on the first surface 11. The feed component 3 and the radiating component 4 are both disposed on the second surface 12, and the feed component 3 is connected to one end of the radiating component 4.

[0037] For the aforementioned RF ground component 2, please refer to Figure 2 and Figure 3 One end of the radio frequency ground component 2 extends to the edge of one end of the first surface 11, which can maintain the length of the radio frequency ground component 2 without increasing the length of the antenna 100, thereby maintaining the performance of the antenna 100.

[0038] In some embodiments, one side of the radio frequency ground element 2 extends to one edge of the first surface 11, and the other side of the radio frequency ground element 2 extends to the other edge of the first surface 11.

[0039] In some embodiments, the radio frequency ground element 2 is rectangular in shape.

[0040] In some embodiments, the width of the radio frequency ground element 2 is equal to the width of the dielectric element.

[0041] For the aforementioned power supply component 3, please refer to Figure 1 and Figure 3 The end of the power feeder 3 away from the radiator 4 extends to the edge of one end of the second surface 12.

[0042] In some embodiments, the power supply element 3 is rectangular in shape.

[0043] For the aforementioned radiating element 4, please refer to Figure 1 and Figure 3 The radiating element 4 is trapezoidal in shape, with the length of one end of the radiating element 4 being shorter than the length of the other end. The radiating element 4 has an opening 41. The trapezoidal shape of the radiating element 4, with the opening 41, enables the antenna 100 to achieve ultra-wideband performance, optimize impedance matching, enhance radiation efficiency, improve frequency response and omnidirectional radiation characteristics, thereby improving the performance of the antenna 100. Furthermore, it eliminates the need for a resonant element near the radiating element 4, reducing the space occupied by the antenna 100 and allowing it to be used in miniaturized communication devices.

[0044] In some embodiments, the trapezoid is an isosceles trapezoid.

[0045] The opening 41 extends through the other end of the radiating element 4. The central axis of the opening 41, the central axis of the radiating element 4, the central axis of the feed element 3, and the central axis of the dielectric substrate 1 are coplanar. This can optimize the impedance matching of the antenna 100, reduce reflection loss, extend the bandwidth of the antenna 100, improve the ultra-wideband performance of the antenna 100, enhance radiation efficiency and omnidirectionality, improve the performance of the antenna 100, reduce crosstalk and interference, and improve anti-interference capability.

[0046] In some embodiments, the opening 41 is square in shape.

[0047] To verify the design of the antenna 100 of this invention, a simulation example is shown below:

[0048] Figure 4 and Figure 5 The diagram illustrates the layout dimensions of the simulation example, where the dielectric layer has a dielectric constant of 3.38, a dielectric loss of 0.0022, and a thickness of 0.4 mm; the metal layer is copper-plated and has a thickness of 0.035 mm. Furthermore, L... A W is the length of dielectric substrate 1. A L represents the width of dielectric substrate 1 or the width of RF ground component 2. G L is the length of RF ground component 2. L L is the length of the other end of the radiating element 4. HLet L be the length of one end of the radiating element 4, H be the height of the radiating element 4, and L be the length of the end of the radiating element 4. R L is the length of the opening 41 of the radiating element 4. F W is the length of the power supply component 3. F The width of the power supply component 3.

[0049] Figures 6-9 The parameter L is shown L L H H and L R The impact on the reflection coefficient of antenna 100.

[0050] Depend on Figure 6 It can be seen that, with the parameter L L As the value increases, the lower passband edge of antenna 100 shifts downward and the upper passband edge shifts upward, resulting in a larger passband bandwidth, a slightly larger center frequency, and a better reflection coefficient within the passband.

[0051] Depend on Figure 7 It can be seen that, with the parameter L H As the diameter increases, the reflection coefficient of antenna 100 improves near the lower passband edge and deteriorates near the upper passband edge. The bandwidth of antenna 100 is maximized when LH = 4.8 mm.

[0052] Depend on Figure 8 It can be seen that as the parameter H increases, both the lower and upper passband edges of antenna 100 shift downwards. The reflection coefficient of antenna 100 deteriorates near the lower passband edge and improves near the upper passband edge. The bandwidth of antenna 100 is maximized when H = 5.8 mm.

[0053] Depend on Figure 9 It can be seen that, with the parameter L R As the bandwidth increases, the lower passband edge of antenna 100 remains unchanged, while the upper passband edge shifts downward, resulting in a larger bandwidth. The reflection coefficient of antenna 100 deteriorates near the lower passband edge and improves near the upper passband edge.

[0054] According to the above Figures 6 to 9 The length L of the other end of the radiating element 4 shown L The length L of one end of the radiating element 4 H The height H of the radiating element 4 and the length L of the opening 41 of the radiating element 4. R The impact of antenna 100's reflection coefficient on antenna 100 is investigated. By optimizing antenna 100's parameters, a simulation example of antenna 100 can be obtained, with the following parameters: L A =10.4mm, W A =10.4mm, L G =3.3mm, L L =6.8mm, L H =4.8mm, H=6.3mm, L R =2.0mm, LF =3.6mm, W F =0.84mm.

[0055] Figure 10 The reflection coefficient of a simulated example of antenna 100 is shown, by... Figure 10 It can be seen that the bandwidth range with a reflection coefficient less than -10dB is from 9.36GHz to 35.12GHz, with a center frequency of 22.24GHz, an absolute bandwidth of 25.76GHz, and a relative bandwidth of 115.83%, exhibiting ultra-wideband characteristics. Within the passband, there are also three transmission poles located at 11.06GHz, 24.51GHz, and 33.09GHz, respectively, ensuring the flatness of maximum gain and radiation efficiency within the passband.

[0056] Figure 11 The simulation results for the maximum gain and radiation efficiency of antenna 100 are shown. Figure 11 It can be seen that within the passband, its average maximum gain is 4.13 dBi, demonstrating the advantage of high maximum gain; within the passband, its average radiation efficiency is 94.06%, demonstrating the advantage of high radiation efficiency.

[0057] Figure 12 - Figure 14 The radiation patterns of antenna 100 at 10 GHz, 22.0 GHz, and 34.0 GHz are given by... Figure 12 - Figure 14 As can be seen, the simulation example of antenna 100 is an omnidirectional antenna 100.

[0058] In this embodiment of the invention, the antenna 100 includes a dielectric substrate 1, a radio frequency ground component 2, a feed component 3, and a radiating component 4. The dielectric substrate 1 has a first surface 11 and a second surface 12 disposed opposite to each other. The radio frequency ground component 2 is disposed on the first surface 11, the feed component 3 is disposed on the second surface 12, and the radiating component 4 is disposed on the second surface 12. One end of the radiating component 4 is connected to the feed component 3. The radiating component 4 is trapezoidal in shape, and the other end of the radiating component 4 has an opening 41. By using the trapezoidal radiating component 4 and the opening 41, the antenna 100 achieves ultra-wideband capability, eliminating the need for a resonant element near the radiating component 4, thereby reducing the space occupied by the antenna 100 and enabling the antenna 100 to be applied to miniaturized communication devices.

[0059] This utility model also provides an embodiment of a communication device, which includes the antenna 100 described above. For the specific structure and function of the antenna 100, please refer to the above embodiment, which will not be repeated here.

[0060] It should be noted that while the preferred embodiments of this utility model are provided in the specification and accompanying drawings, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this utility model; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this utility model specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An antenna, characterized by The antenna comprises: a dielectric plate having a first surface and a second surface arranged oppositely; a radio frequency ground disposed on the first surface; a feed disposed on the second surface; a radiating element disposed on the second surface, one end of the radiating element being connected to the feed, the radiating element being in the shape of a trapezoid, the other end of the radiating element being provided with an opening.

2. The antenna according to claim 1, wherein the trapezoid is an isosceles trapezoid.

3. The antenna according to claim 2, wherein the opening penetrates the end of the other end of the radiating element.

4. The antenna according to claim 3, wherein the opening is in the shape of a square.

5. The antenna according to claim 1, wherein the length of the end of one end of the radiating element is less than the length of the end of the other end of the radiating element.

6. The antenna according to claim 2, wherein the central axis plane of the feed, the central axis plane of the radiating element, the central axis plane of the dielectric plate, the central axis plane of the radio frequency ground and the central axis plane of the opening are coplanar.

7. The antenna according to claim 6, wherein one end of the radio frequency ground extends to the edge of one end of the first surface.

8. The antenna according to claim 7, wherein both sides of the radio frequency ground extend to the edges of both sides of the first surface, respectively.

9. The antenna according to claim 7, wherein the radio frequency ground is in the shape of a rectangle.

10. A communication device, characterized by The antenna as claimed in any one of claims 1-9.

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