Trapezoidal angle measurement antenna and antenna combination device

Abstract

The utility model relates to a trapezoidal angle measurement antenna and an antenna combination device. The angle measurement antenna comprises an antenna body, the antenna body comprises two trapezoidal radiation patches in the horizontal direction, the two trapezoidal radiation patches are spaced by a preset distance and are symmetrical relative to a gap, a feed column is connected to the lower portion of any one of the two trapezoidal radiation patches, and the feed column is connected to the lower portion of any one of the two trapezoidal radiation patches. The long sides of the parallel sides of the two radiation patches are arranged close to each other; the antenna body is provided with two short-circuit plates in the vertical direction, the two short-circuit plates are connected with the short sides of the parallel sides of the two trapezoidal radiation patches respectively, and the lower portions of the two short-circuit plates are connected with a grounding plate. Based on the angle measurement antenna, the size can be reduced while the electrical performance is maintained, the directivity and the angle measurement precision are improved, and the flexibility of adapting to multi-frequency and multi-environment application is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of antennas, in particular to a trapezoidal angle measuring antenna and an antenna combination device. Background Art

[0002] With the continuous advancement of wireless communication technology, the demand for angle measurement technology is increasing, especially in the fields of smart devices, drones, autonomous driving and the Internet of Things, which puts higher requirements on the miniaturization, integration and high performance of antennas. At present, the shape and size of the antenna are generally optimized by adopting miniaturized antenna structures such as microstrip antennas and patch antennas to reduce the size of the antenna.

[0003] However, the current arrival angle phase difference method requires the antenna spacing to be half a wavelength at the operating frequency to ensure high angle measurement accuracy and resolution. However, in many practical applications, this design requirement is difficult to achieve due to the size of the device, resulting in low angle measurement resolution. Utility Model Content

[0004] The embodiments of the present invention provide a trapezoidal angle measurement antenna and an antenna combination device, which at least solve the problem of low angle measurement resolution due to the size limitation of the antenna device in the related art.

[0005] According to a first aspect of an embodiment of the utility model, there is provided a trapezoidal angle measuring antenna, comprising an antenna body, wherein the antenna body comprises two trapezoidal radiation patches in a horizontal direction, wherein the two trapezoidal radiation patches are spaced apart by a preset distance and are symmetrical with respect to the gap, wherein a feeding column is connected below any one of the two trapezoidal radiation patches, and the long sides of the parallel sides of the two radiation patches are arranged close to each other;

[0006] The antenna body is provided with two short-circuit plates in the vertical direction, the two short-circuit plates are respectively connected to the short sides of the parallel sides of the two trapezoidal radiation patches, and a ground plate is connected below the two short-circuit plates.

[0007] According to an embodiment of the present invention, the two trapezoidal radiation patches are coplanar, and the preset distance is comprised between 0.3 mm and 1 mm.

[0008] According to an embodiment of the utility model, the distance between the short sides of the two trapezoidal radiation patches is one tenth of the wavelength at the operating frequency, the length of the trapezoidal radiation patch is one fifth of the wavelength at the operating frequency, and the height of the trapezoidal radiation patch is one fifteenth of the wavelength at the operating frequency.

[0009] According to an embodiment of the present utility model, the short-circuit plate is vertically arranged to the trapezoidal radiation patch, and the width of the short-circuit plate is consistent with the width of the short side of the trapezoidal radiation patch.

[0010] According to an embodiment of the present invention, the ground plate is a metal sheet configured to provide an electrical reference point;

[0011] The two short-circuit plates are respectively connected to two ends of the ground plate.

[0012] According to a second aspect of an embodiment of the utility model, an antenna combination device is provided, comprising four angle measuring antennas as described in the first aspect, wherein the four angle measuring antennas are respectively a first angle measuring antenna, a second angle measuring antenna, a third angle measuring antenna and a fourth angle measuring antenna;

[0013] Wherein, the first angle measuring antenna and the second angle measuring antenna are configured as a vertical angle measuring combination, and the third angle measuring antenna and the fourth angle measuring antenna are configured as a vertical angle measuring combination;

[0014] The first angle measuring antenna and the third angle measuring antenna are configured as a horizontal angle measuring combination, and the second angle measuring antenna and the fourth angle measuring antenna are configured as a horizontal angle measuring combination;

[0015] Any three of the first angle measuring antenna, the second angle measuring antenna, the third angle measuring antenna and the fourth angle measuring antenna are configured as a three-dimensional angle measuring antenna combination, and the three-dimensional angle measuring antenna combination is used to realize a three-dimensional angle measuring function.

[0016] According to an embodiment of the present utility model, another angle measuring antenna among the four angle measuring antennas except the three angle measuring antennas configured as the three-dimensional angle measuring antenna combination is configured to balance the antenna radiation pattern of the three-dimensional angle measuring antenna combination.

[0017] The trapezoidal angle measuring antenna provided by the embodiment of the utility model can realize the miniaturization and high efficiency of the angle measuring antenna. Specifically, the angle measuring antenna provided by the embodiment of the utility model includes two trapezoidal radiation patches spaced by a preset distance in the horizontal direction and arranged symmetrically relative to the gap, which reduces the overall size and improves the radiation performance and directivity. A feeding column is connected below any one of the two radiation patches to ensure the effective transmission of the signal and good electrical performance; the long sides of the radiation patches are arranged close to each other, which further reduces the physical size and improves the directivity. The two short-circuit plates arranged in the vertical direction are connected to the short sides of the trapezoidal radiation patches, which enhances the mechanical strength and electrical performance of the structure, so that the antenna can increase the isolation between antennas while being miniaturized, so that the antenna has better angle measurement performance in a smaller space. The short-circuit plate is connected to the ground plate, which can provide a stable electrical reference point, reduce noise and interference, and ensure the quality of signal reception. In summary, the utility model realizes an efficient angle measurement function in a limited space, and is suitable for miniaturized application scenarios such as portable devices and micro sensors. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other embodiments can be obtained based on these drawings without creative work.

[0019] Figure 1 A schematic structural diagram of a trapezoidal angle measuring antenna provided in an embodiment of the utility model.

[0020] Figure 2 A schematic structural diagram of an antenna combination device provided in an embodiment of the utility model.

[0021] Figure 3 A schematic diagram of top current distribution of the antenna assembly device provided by an embodiment of the utility model when working.

[0022] Figure 4 A schematic diagram of the side current distribution of the antenna combination device provided by an embodiment of the utility model when working.

[0023] Figure 5 This is a graph showing the angle measurement performance of the antenna combination device provided in an embodiment of the utility model.

[0024] In the figure, 1. trapezoidal radiation patch; 2. feeding column; 3. short-circuit plate; 4. ground plate; 5. first angle measuring antenna; 6. second angle measuring antenna; 7. third angle measuring antenna; 8. fourth angle measuring antenna. DETAILED DESCRIPTION

[0025] Embodiments of the present embodiment will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present embodiment are shown in the accompanying drawings, it should be understood that the present embodiment can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein, which are instead provided for a more thorough and complete understanding of the present embodiment. It should be understood that the drawings and embodiments of the present embodiment are only for exemplary purposes and are not intended to limit the scope of protection of the present embodiment.

[0026] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the case where there is no conflict between the embodiments, the following embodiments and the features in the embodiments can be combined with each other. In addition, the step sequence in the following method embodiments is only an example and not a strict limitation.

[0027] In modern communication technology and wireless positioning systems, angle measurement technology plays a key role. Especially in the fields of smart devices, drones, autonomous driving and the Internet of Things, the demand for angle measurement technology is increasing. The angle of arrival phase difference method (AOA) is a commonly used direction positioning algorithm that determines the azimuth of the signal source by using the phase difference of the incoming wave reaching the two antennas at the receiving end. In order to achieve the ideal azimuth judgment effect, the antenna spacing is generally required to be half a wavelength at the operating frequency. However, in practical applications, due to the limitation of device size, especially in miniaturized application scenarios such as portable devices and micro sensors, it is difficult to achieve an antenna spacing of half a wavelength, which leads to a reduction in angle measurement resolution.

[0028] In order to solve the above problems, the embodiments of the present invention provide a trapezoidal angle measurement antenna and an antenna combination device, which solve the problem of low angle measurement resolution due to the size limitation of the antenna device in the related art.

[0029] Figure 1 The schematic diagram of the structure of a trapezoidal angle measuring antenna provided by the embodiment of the utility model. Figure 1 As shown, the antenna body of the trapezoidal diagonal line includes a trapezoidal radiation patch 1, a feeding post 2, a short-circuit plate 3 and a ground plate 4.

[0030] In this embodiment, the antenna body includes two trapezoidal radiation patches 1 in the horizontal direction, and the two trapezoidal radiation patches 1 are separated by a preset distance and are symmetrical with respect to the gap, wherein a feeding pole 2 is connected underneath any one of the two trapezoidal radiation patches 1, and the long sides of the parallel sides of the two trapezoidal radiation patches 1 are arranged close to each other.

[0031] The two trapezoidal radiating patches 1 provided in the embodiment of the utility model can reduce the antenna spacing, thereby further miniaturizing the antenna while maintaining good electrical performance. The two trapezoidal radiating patches 1 can reduce the overall size of the antenna by arranging their long sides close to each other, thereby improving the directivity and accuracy of angle measurement.

[0032] Based on the above two trapezoidal radiation patches 1, the angle measuring antenna in this embodiment can be applied to antennas in different frequency ranges. In practical applications, the angle measuring antenna can be adapted to different working environments, such as high-frequency band applications and low-frequency band applications, by adjusting the size and shape of the trapezoidal radiation patches 1. In addition, optionally, an array antenna can be formed by adding multiple trapezoidal radiation patches 1 to further improve the accuracy and resolution of directional positioning.

[0033] The antenna body in this embodiment is provided with two short-circuit plates 3 in the vertical direction. The two short-circuit plates 3 are respectively connected to the short sides of the parallel sides of the two trapezoidal radiation patches 1 . A ground plate 4 is connected below the two short-circuit plates 3 .

[0034] The short-circuit plate 3 provided in the embodiment of the utility model can enhance the mechanical strength of the antenna and improve the electrical performance of the antenna by providing a stable current path. In addition, after the short-circuit plate 3 is connected to the ground plate 4, the angle measuring antenna can effectively shield noise, reduce interference, and improve signal reception quality.

[0035] In practical applications, the short-circuit sheet 3 can be made of different materials and thicknesses to meet different application requirements. For example, in the case where higher strength and stability are required, a thicker metal sheet can be used. In application scenarios that require flexibility, the short-circuit sheet 3 can be made of flexible materials.

[0036] In addition, the electrical performance of the antenna can be optimized by adjusting the connection mode between the short-circuit plate 3 and the ground plate 4. More connection points can provide lower inductance, but may increase parasitic capacitance; reducing the number of connection points will do the opposite.

[0037] For example, the current path of the antenna can be changed by increasing or decreasing the number of connection points between the short-circuit plate 3 and the ground plate 4, thereby affecting the impedance matching and radiation efficiency of the antenna. In high-frequency applications, increasing the number of connection points can reduce inductance and parasitic capacitance, thereby improving high-frequency performance.

[0038] Alternatively, the radiation pattern and efficiency of the antenna can be optimized by adjusting the position where the short-circuit plate 3 is connected to the ground plate 4, changing the current path and electric field distribution. A connection point close to the feed point can reduce impedance mismatch and improve radiation efficiency.

[0039] In an optional embodiment, the two trapezoidal radiation patches 1 are coplanar, and the preset distance between the two trapezoidal radiation patches 1 is comprised between 0.3 mm and 1 mm.

[0040] The two trapezoidal radiating patches 1 in this embodiment can ensure the phase consistency between the two trapezoidal radiating patches 1 through coplanar arrangement and precise preset distance, thereby improving the accuracy of angle measurement. At the same time, the small spacing of 0.3 mm to 1 mm is more suitable for miniaturized equipment and reduces the overall size.

[0041] In practical applications, the coplanar design can be applied to trapezoidal radiation patches 1 in different forms. According to specific use requirements, the shape and size of the patch can be changed to adapt to different application requirements.

[0042] In addition, the performance of the antenna in different frequency bands can be optimized by adjusting the preset distance. The preset distance of the goniometric antenna (i.e., the spacing between the trapezoidal radiating patches 1) affects the resonant frequency and bandwidth of the antenna. Smaller spacing is suitable for higher frequency bands, while larger spacing is suitable for lower frequency bands. Adjusting the preset distance can achieve optimal performance in different frequency bands. For example, for wideband applications, by adjusting the spacing between the trapezoidal radiating patches 1, multiple resonant frequencies can be achieved, thereby covering a wider frequency band.

[0043] Antenna spacing also affects the gain and directivity of the antenna. Smaller spacing can reduce lateral radiation and increase forward gain; larger spacing has the opposite effect. By optimizing the spacing, the best gain and directivity can be achieved in different frequency bands. For example, in applications that require high directivity, higher forward gain and lower lateral radiation can be achieved by precisely adjusting the spacing.

[0044] In an optional embodiment, the distance between two short pieces of the trapezoidal radiation patch 1 is one tenth of the wavelength at the operating frequency, the length of the trapezoidal radiation patch is one fifth of the wavelength at the operating frequency, and the height of the trapezoidal radiation patch is one fifteenth of the wavelength at the operating frequency.

[0045] In this embodiment, the dimensions of the trapezoidal radiation patch 1 can ensure the best performance of the angle measuring antenna at a specific operating frequency. The specific width, length and height ratios can ensure miniaturization while providing good radiation performance and directivity.

[0046] In practical applications, the size of the trapezoidal radiation patch 1 can be adjusted according to different operating frequencies to make the antenna suitable for different application scenarios, such as wireless communication, navigation and positioning, etc. Further optionally, a multi-layer structure can be used to meet the application requirements of broadband and multi-band.

[0047] In an optional embodiment, the short-circuit plate 3 is vertically arranged to the trapezoidal radiation patch 1 , and the width of the short-circuit plate 3 is consistent with the width of the short side of the trapezoidal radiation patch 1 .

[0048] In this embodiment, the vertically arranged short-circuit plate 3 can provide better electrical isolation, reduce mutual interference, and improve the working stability of the antenna. In addition, the width of the short-circuit plate 3 is consistent with the short side of the trapezoidal radiation patch 1, which can optimize the current distribution and improve the antenna efficiency.

[0049] In practical applications, the shape and size of the short-circuit piece 3 can be adjusted according to specific usage requirements, thereby optimizing the electrical performance of the antenna based on the application environment to adapt to different application requirements. For example, in high-frequency applications, the size and position of the short-circuit piece 3 can be optimized to reduce parasitic capacitance and inductance, thereby improving antenna performance.

[0050] Specifically, a smaller short-circuit plate 3 can reduce parasitic capacitance and inductance and improve high-frequency performance. A larger short-circuit plate 3 may increase capacitance and inductance and reduce performance. By optimizing the size, better impedance matching and radiation efficiency can be achieved at high frequencies.

[0051] The position of the short-circuit plate 3 affects the current distribution and electric field distribution of the antenna. The position of the short-circuit plate 3 close to the feed point can reduce the inductance in the current path and optimize the high-frequency performance. The position far from the feed point may increase the inductance.

[0052] In an optional embodiment, the grounding plate 4 is a metal sheet configured to provide an electrical reference point; the two short-circuit plates 3 are respectively connected to two ends of the grounding plate 4 .

[0053] In this embodiment, the ground plate 4 can provide a stable electrical reference point, ensure the stability of the electrical performance of the antenna, reduce noise and interference, and improve the signal reception quality. The short-circuit plate 3 is connected to the ground plate 4 to enhance the mechanical strength and electrical performance of the antenna.

[0054] In practical applications, the ground plane 4 can be made of different materials and shapes to optimize the antenna performance. For example, in the case where higher electrical performance is required, a metal material with high conductivity can be used. In applications that require flexibility, a flexible material can be used to make the ground plane 4. In addition, by adjusting the size and position of the ground plane 4, the electrical performance of the antenna can be further optimized.

[0055] Specifically, the size of the ground plane 4 affects the radiation characteristics and impedance matching of the antenna. A larger ground plane 4 can provide a more stable electrical reference point and improve low-frequency performance; a smaller ground plane 4 can reduce the capacitance effect and improve high-frequency performance. In multi-band applications, by optimizing the size of the ground plane 4, the best radiation characteristics and impedance matching can be achieved in different frequency bands.

[0056] The position of the ground plate 4 affects the current path and electric field distribution of the antenna. By accurately adjusting the position of the ground plate 4, the radiation pattern and gain of the antenna can be optimized. In some specific applications, moving the ground plate 4 can achieve better directivity and gain distribution. In antenna array applications, by adjusting the position of the ground plate 4 of each unit antenna, better array gain and directivity control can be achieved.

[0057] In summary, the trapezoidal radiation patch 1 in the trapezoidal angle measuring antenna provided in the embodiment of the utility model is the main radiation element of the antenna, which is designed to be a trapezoid, and two or more trapezoidal radiation patches 1 can be used in combination. The feed post 2 is connected to the trapezoidal radiation patch 1 to provide electrical signal excitation. The short-circuit plate 3 is used to enhance the mechanical strength of the antenna and provide a stable current path. The ground plate 4: provides an electrical reference point for the antenna to reduce noise and interference.

[0058] The trapezoidal radiation patch 1 transmits and receives signals by radiating electromagnetic waves. The trapezoidal design of the trapezoidal radiation patch 1 helps optimize the radiation pattern of electromagnetic waves and improve the directivity and accuracy of the antenna. The design of arranging the long sides close together can effectively reduce the overall size of the antenna while maintaining good electrical performance.

[0059] The feed post 2 transmits the electrical signal to the trapezoidal radiation patch 1, and stimulates the trapezoidal radiation patch 1 to generate electromagnetic waves. The position and design of the feed post 2 affect the impedance matching and radiation efficiency of the antenna.

[0060] The short-circuit plate 3 is connected to the short side of the trapezoidal radiation patch 1, which plays a role in enhancing the mechanical strength of the antenna and improving the electrical performance. The short-circuit plate 3 provides a stable current path, shields noise and reduces interference by connecting to the ground plate 4.

[0061] The ground plane 4 provides a stable electrical reference point for the antenna, ensures the stability of the antenna's electrical performance, and reduces noise and interference. The size and material of the ground plane 4 will affect the radiation characteristics and impedance matching of the antenna.

[0062] Based on the trapezoidal angle measuring antenna provided in the above embodiment, the embodiment of the utility model further provides an antenna combination device.

[0063] Figure 2 The following is a schematic diagram of the structure of an antenna combination device provided by an embodiment of the utility model. Figure 2 As shown, the antenna combination device provided by the embodiment of the utility model includes four trapezoidal angle measurement antennas.

[0064] To facilitate the subsequent description of the combination and function of the four trapezoidal angle measuring antennas, specific numbers are set for them below. The four angle measuring antennas may be a first angle measuring antenna 5, a second angle measuring antenna 6, a third angle measuring antenna 7 and a fourth angle measuring antenna 8 respectively.

[0065] In this embodiment, the first angle measuring antenna 5 and the second angle measuring antenna 6 are configured as a horizontal angle measuring combination, and the third angle measuring antenna 7 and the fourth angle measuring antenna 8 are configured as a horizontal angle measuring combination; the first angle measuring antenna 5 and the third angle measuring antenna 7 are configured as a vertical angle measuring combination, and the second angle measuring antenna 6 and the fourth angle measuring antenna 8 are configured as a vertical angle measuring combination. Among them, the horizontal angle measuring combination can be used for horizontal angles, that is, a horizontal angle combination; the vertical angle measuring combination can be used for measuring elevation angles, that is, a pitch angle combination.

[0066] By configuring four trapezoidal angle measurement antennas as vertical and horizontal angle measurement combinations respectively, angle measurement in two dimensions can be achieved, providing more comprehensive direction information.

[0067] Any three angle measuring antennas among the first angle measuring antenna 5 , the second angle measuring antenna 6 , the third angle measuring antenna 7 and the fourth angle measuring antenna 8 are configured as a three-dimensional angle measuring antenna combination, and the three-dimensional angle measuring antenna combination is used to realize a three-dimensional angle measuring function.

[0068] In this embodiment, another angle measuring antenna among the four angle measuring antennas except the three angle measuring antennas configured as the three-dimensional angle measuring antenna combination is configured to balance the antenna radiation pattern of the three-dimensional angle measuring antenna combination.

[0069] By using a fourth angle measurement antenna to balance the antenna pattern of the three-dimensional angle measurement combination, the radiation pattern of the entire antenna system can be optimized, the asymmetry and interference in the pattern can be reduced, and the measurement accuracy and system stability can be improved.

[0070] In an optional embodiment, the user can select a suitable antenna combination according to specific application requirements to perform single-dimensional, two-dimensional or three-dimensional angle measurement.

[0071] Figure 3 This is a schematic diagram of the top current distribution of the antenna assembly device provided by the embodiment of the utility model when it is working. Figure 3 As shown in FIG. 1 , the top surface current distribution of the first angle measuring antenna 5 and the third angle measuring antenna 7 in the antenna combination device when they are working. It can be seen that the main polarization directions of the first angle measuring antenna 5 and the third angle measuring antenna 7 are perpendicular to the wide side of the patch, that is, horizontal polarization; and the mutual influence between the two antennas is small (the current induced on the surface of the third angle measuring antenna 7 is weak);

[0072] Figure 4 This is a schematic diagram of the side current distribution of the antenna combination device provided by the embodiment of the utility model when it is working. Figure 4 As shown in FIG. 1 , the left surface current distribution of the first angle measuring antenna 5 and the third angle measuring antenna 7 in the antenna combination device when they are working is shown. It can be seen that the currents on the vertical walls on the left and right sides of the first angle measuring antenna 5 and the third angle measuring antenna 7 are in opposite directions (including the same direction of the feeding column and the short-circuit wall on the same side), so this type of angle measuring antenna has a good cross-polarization suppression capability; and the currents on the short-circuit walls adjacent to the two angle measuring antenna units are in opposite directions, which further improves the isolation between the antennas.

[0073] Figure 5 This is a graph showing the angle measurement performance of the antenna combination device provided in the embodiment of the utility model. Figure 5 As shown, the horizontal axis is the actual direction of the incoming wave (Angle of Arrive, AOA), and the vertical axis is the phase difference (Phase Difference Of Arrival, PDOA) of the received electromagnetic wave. It can be seen that PDOA can effectively reflect the changes in AOA.

[0074] In summary, the antenna combination device provided in the embodiment of the utility model can perform angle measurement in two dimensions through the combination of vertical and horizontal angle measurement, and provide comprehensive direction information. At the same time, any three angle measurement antennas are selected to form a three-dimensional angle measurement antenna combination to realize the three-dimensional angle measurement function. The fourth antenna is used to balance the directional pattern of the three-dimensional angle measurement antenna combination, optimize the radiation pattern, and reduce asymmetry and interference.

[0075] It should be noted that the term "including" and its variations used in the embodiments of the present invention are open inclusions, that is, "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". The modifications of "one" and "multiple" mentioned in the embodiments of the present invention are illustrative and not restrictive. Those skilled in the art should understand that unless the context clearly indicates otherwise, it should be understood as "one or more".

[0076] The user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in the embodiments of the present utility model are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data need to comply with the relevant laws, regulations and standards of relevant countries and regions, and provide corresponding operation entrances for users to choose to authorize or refuse.

[0077] The various steps described in the method implementation provided by the embodiment of the utility model can be performed in different orders and / or in parallel. In addition, the method implementation may include additional steps and / or omit the steps shown. The scope of protection of the utility model is not limited in this respect.

[0078] The term "embodiment" in this specification refers to specific features, structures or characteristics described in conjunction with the embodiment that can be included in at least one embodiment of the present utility model. The appearance of this phrase in various places in the specification does not necessarily mean the same embodiment, nor does it mean that it is mutually exclusive with other embodiments and is independent or optional. The various embodiments in this specification are described in a related manner, and the same or similar parts between the various embodiments refer to each other. In particular, for the device, equipment, and system embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts refer to the partial description of the method embodiment.

[0079] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of patent protection. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the attached claims.

Claims

1. A trapezoidal angle measuring antenna, comprising an antenna body, characterized in that: The antenna body comprises two trapezoidal radiation patches in the horizontal direction, the two trapezoidal radiation patches are spaced apart by a preset distance and are symmetrical with respect to the gap, wherein a feeding column is connected below any one of the two trapezoidal radiation patches, and the long sides of the parallel sides of the two radiation patches are arranged close to each other; The antenna body is provided with two short-circuit plates in the vertical direction, the two short-circuit plates are respectively connected to the short sides of the parallel sides of the two trapezoidal radiation patches, and a ground plate is connected below the two short-circuit plates.

2. The angle measuring antenna according to claim 1, characterized in that: The two trapezoidal radiation patches are coplanar, and the preset distance is within a range of 0.3 mm to 1 mm.

3. The angle measuring antenna according to claim 1, characterized in that: The distance between the short sides of the two trapezoidal radiation patches is one tenth of the wavelength at the operating frequency, the length of the trapezoidal radiation patch is one fifth of the wavelength at the operating frequency, and the height of the trapezoidal radiation patch is one fifteenth of the wavelength at the operating frequency.

4. The angle measuring antenna according to claim 1, characterized in that: The short-circuit plate is arranged perpendicular to the trapezoidal radiation patch, and the width of the short-circuit plate is consistent with the width of the short side of the trapezoidal radiation patch.

5. The angle measuring antenna according to claim 1, characterized in that: The ground plate is a metal sheet configured to provide an electrical reference point; The two short-circuit plates are respectively connected to two ends of the ground plate.

6. An antenna combination device, characterized in that: Comprising four angle measuring antennas as claimed in any one of claims 1 to 5, wherein the four angle measuring antennas are respectively a first angle measuring antenna, a second angle measuring antenna, a third angle measuring antenna and a fourth angle measuring antenna; Wherein, the first angle measuring antenna and the second angle measuring antenna are configured as a vertical angle measuring combination, and the third angle measuring antenna and the fourth angle measuring antenna are configured as a vertical angle measuring combination; The first angle measuring antenna and the third angle measuring antenna are configured as a horizontal angle measuring combination, and the second angle measuring antenna and the fourth angle measuring antenna are configured as a horizontal angle measuring combination; Any three of the first angle measuring antenna, the second angle measuring antenna, the third angle measuring antenna and the fourth angle measuring antenna are configured as a three-dimensional angle measuring antenna combination, and the three-dimensional angle measuring antenna combination is used to realize a three-dimensional angle measuring function.

7. The antenna assembly device according to claim 6, characterized in that: Another angle measuring antenna among the four angle measuring antennas, except the three angle measuring antennas configured as the three-dimensional angle measuring antenna combination, is configured to balance the antenna radiation pattern of the three-dimensional angle measuring antenna combination.

Images