Single-ended dual-frequency antenna and signal transfer equipment

Abstract

The embodiment of the invention discloses a single-ended dual-frequency antenna and signal transfer equipment. According to the technical scheme provided by the embodiment of the invention, the first frequency band oscillator array is connected to the input end of the combining module through the first filtering module, and the second frequency band oscillator array is connected to the input end of the combining module through the second filtering module. Wherein the frequency band of the first frequency band oscillator array is higher than the frequency band of the second frequency band oscillator array, a single-ended dual-frequency array antenna is realized, the number of antennas and the space ratio are effectively reduced, and the phase center of the first frequency band oscillator array coincides with the phase center of the second frequency band oscillator array, so that the antenna efficiency is improved. The phase center of the first frequency band oscillator array and the phase center of the second frequency band oscillator array can face a device in wireless connection at the same time, and the communication quality of the antenna in outdoor long-distance point-to-point communication is effectively improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of antenna technology, and in particular to a single-ended dual-frequency antenna and a signal relay device. Background Art

[0002] With the development of communication technology, electronic devices have increasingly higher requirements for wireless communication quality. For example, electronic devices are often equipped with WiFi communication modules and WiFi antennas for WiFi wireless communication.

[0003] Existing WiFi antennas are mainly for indoor products, with built-in omnidirectional high-gain antennas as the main ones, while there are few directional dual-band high-gain antenna products for outdoor long-distance communications. For outdoor point-to-point wireless communications, the angle of the omnidirectional antenna is not applicable, and the existing communication modules basically support dual-band communications. In order to support the dual-band communication of the device, a single-frequency antenna needs to be set up separately for different frequency bands, which also leads to more antennas and a larger space occupation. The current common antennas have poor communication quality in outdoor long-distance point-to-point communications. Summary of the invention

[0004] The embodiments of the present application provide a single-ended dual-frequency antenna and a signal relay device to solve the technical problem in the related art that the communication quality of the antenna in outdoor long-distance point-to-point communication is poor, and effectively improve the communication quality of the antenna in outdoor long-distance point-to-point communication.

[0005] In a first aspect, an embodiment of the present application provides a single-ended dual-frequency antenna, comprising a first frequency band dipole array, a second frequency band dipole array, a first filtering module, a second filtering module, and a combining module, wherein:

[0006] The first frequency band oscillator array is connected to the input end of the combining module through the first filtering module, and the second frequency band oscillator array is connected to the input end of the combining module through the second filtering module;

[0007] The frequency band of the first frequency band vibrator array is higher than the frequency band of the second frequency band vibrator array, and the phase center of the first frequency band vibrator array coincides with the phase center of the second frequency band vibrator array.

[0008] In the second aspect, an embodiment of the present application provides a signal transfer device, comprising a signal transfer device body and a unit dual-frequency antenna as described in any one of the first aspects, wherein the signal transceiver end of the signal transfer device body is connected to the combining module of the unit dual-frequency antenna.

[0009] In the embodiment of the present application, the first frequency band vibrator array is connected to the input end of the combiner module through the first filtering module, and the second frequency band vibrator array is connected to the input end of the combiner module through the second filtering module, wherein the frequency band of the first frequency band vibrator array is higher than the frequency band of the second frequency band vibrator array, thereby realizing a single-ended dual-frequency array antenna, effectively reducing the number of antennas and the space occupied, and the phase center of the first frequency band vibrator array coincides with the phase center of the second frequency band vibrator array, and the phase center of the first frequency band vibrator array and the phase center of the second frequency band vibrator array can be simultaneously oriented toward the wirelessly connected device, effectively improving the communication quality of the antenna in outdoor long-distance point-to-point communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of a single-ended dual-frequency antenna provided in an embodiment of the present application;

[0011] Figure 2 It is a structural schematic diagram of another single-ended dual-frequency antenna provided in an embodiment of the present application;

[0012] Figure 3 This is a schematic diagram of a sub-module structure of a first frequency band oscillator provided in an embodiment of the present application;

[0013] Figure 4 This is a schematic diagram of a sub-module structure of a second frequency band oscillator provided in an embodiment of the present application;

[0014] Figure 5 is a schematic diagram of a feeding network structure provided in an embodiment of the present application;

[0015] Figure 6 It is a structural diagram of a signal transfer device provided in an embodiment of the present application.

[0016] Figure numerals: 1. first frequency band vibrator array; 11. first frequency band vibrator sub-module; 111. first frequency band vibrator; 112. third power division module; 113. fifth power division module; 12. first power division module; 2. second frequency band vibrator array; 21. second frequency band vibrator sub-module; 211. second frequency band vibrator; 212. fourth power division module; 22. second power division module; 3. first filter module; 4. second filter module; 5. combining module; 6. dielectric board; 7. vibrator mounting board; 8. signal transfer equipment body; 9. unit dual-band antenna. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the present application clearer, the specific embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. It is understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for the sake of ease of description, only the parts related to the present application are shown in the accompanying drawings, rather than all the contents.

[0018] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0019] Figure 1 A schematic diagram of the structure of a single-ended dual-frequency antenna provided in an embodiment of the present application is given. Figure 1 , the single-ended dual-frequency antenna includes a first frequency band vibrator array 1, a second frequency band vibrator array 2, a first filter module 3, a second filter module 4 and a combining module 5. The vibrator array provided by this solution can be a WiFi vibrator array, and the first frequency band vibrator array 1 and the second frequency band vibrator array 2 form a dual-band WiFi antenna vibrator array. Among them, the frequency band of the first frequency band vibrator array 1 is higher than the frequency band of the second frequency band vibrator array 2. For example, the first frequency band vibrator array 1 can be a 5.8G vibrator array, and the vibrators in the first frequency band vibrator array 1 are 5.8G high-frequency vibrators, and the second frequency band vibrator array 2 can be a 2.4G vibrator array, and the vibrators in the second frequency band vibrator array 2 are 2.4G low-frequency vibrators.

[0020] The combining module 5 is configured with two input terminals and one output terminal. The first frequency band vibrator array 1 is connected to the output terminal of the combining module 5 through the first filter module 3. Specifically, one end of the first filter module 3 is connected to the first frequency band vibrator array 1, and the other end of the first filter module 3 is connected to the output terminal of the combining module 5. The second frequency band vibrator array 2 is connected to the output terminal of the combining module 5 through the second filter module 4. Specifically, one end of the second filter module 4 is connected to the second frequency band vibrator array 2, and the other end of the second filter module 4 is connected to the output terminal of the combining module 5, that is, the first filter module 3 and the second filter module 4 are connected together as the input terminal of the single-ended dual-frequency antenna and connected to the output terminal of the combining module 5.

[0021] The filtering frequency bands corresponding to the first filtering module 3 and the second filtering module 4 provided in this solution correspond to the frequency bands corresponding to the first frequency band vibrator array 1 and the second frequency band vibrator array 2, respectively, that is, the first filtering module 3 can pass the data of the frequency band corresponding to the first frequency band vibrator array 1, and the second filtering module 4 can pass the data of the frequency band corresponding to the second frequency band vibrator array 2. For example, the first filtering module 3 can pass the data of the frequency band corresponding to 5.8G, and the second filtering module 4 can pass the data of the frequency band corresponding to 2.4G, thereby realizing the isolation of the reception and transmission of the frequency band signals corresponding to the first frequency band vibrator array 1 and the second frequency band vibrator array 2 and the data of other frequency bands.

[0022] Among them, the two input ends of the combiner module 5 can be respectively connected to the data transceiver ports of different frequency bands of the wireless signal device (such as the main body of the signal transfer device), for example, one input end of the combiner module 5 is connected to the 5.8G data transceiver port of the wireless signal device, and the other input end is connected to the 2.4G data transceiver port of the wireless signal device. When the wireless signal device needs to send data, it sends uplink data from the signal transceiver port to the combiner module 5, and the uplink data is sent to the first filter module 3 and the second filter module 4 through the combiner for filtering, and then the uplink data is sent to the first frequency band vibrator array 1 or the second frequency band vibrator array 2 through the first filter module 3 or the second filter module 4, and is sent out through the first frequency band vibrator array 1 or the second frequency band vibrator array 2. When the first frequency band vibrator array 1 or the second frequency band vibrator array 2 receives the downlink data, it sends it to the combiner through the first filter module 3 or the second filter module 4, and sends it to the data transceiver port of the corresponding frequency band of the wireless signal device through the combiner, so as to realize the signal transceiver of the single-ended dual-frequency antenna, and there is no need to configure different antennas for different frequency bands respectively, thereby reducing the number of antennas.

[0023] At the same time, the phase center of the first frequency band vibrator array 1 provided by this solution coincides with the phase center of the second frequency band vibrator array 2. At this time, the central frequency direction of the first frequency band vibrator array 1 coincides with the central frequency direction of the second frequency band vibrator array 2. When the single-ended dual-frequency antenna is aimed at a dual-frequency wirelessly connected device (such as unmanned equipment such as drones and unmanned vehicles), the device can be simultaneously within the gain maximum point range of the first frequency band vibrator array 1 and the second frequency band vibrator array 2, and when the device switches the frequency band, the adjustment of the angle of the single-ended dual-frequency antenna is reduced, and a high-gain line array (WiFi antenna array) can be achieved through a smaller antenna space, thereby enhancing the outdoor long-distance point-to-point communication distance and communication strength. Among them, the phase centers of the first frequency band vibrator array 1 and the second frequency band vibrator array 2 coincide, which can be understood as the angle formed by the phase centers of the first frequency band vibrator array 1 and the second frequency band vibrator array 2 is within the angle range (for example, -15° to 15°).

[0024] In the above, the first frequency band vibrator array 1 is connected to the input end of the combining module 5 through the first filtering module 3, and the second frequency band vibrator array 2 is connected to the input end of the combining module 5 through the second filtering module 4, wherein the frequency band of the first frequency band vibrator array 1 is higher than the frequency band of the second frequency band vibrator array 2, realizing a single-ended dual-frequency array antenna, effectively reducing the number of antennas and the space occupancy, and the phase center of the first frequency band vibrator array 1 coincides with the phase center of the second frequency band vibrator array 2, and the phase center of the first frequency band vibrator array 1 and the phase center of the second frequency band vibrator array 2 can be simultaneously oriented towards the wirelessly connected device, effectively improving the communication quality of the antenna in outdoor long-distance point-to-point communication.

[0025] Figure 2 A schematic diagram of the structure of another single-ended dual-frequency antenna provided in an embodiment of the present application is given. The single-ended dual-frequency antenna is further configured based on the single-ended dual-frequency antenna provided in the above embodiment. Figure 2 The single-ended dual-frequency antenna comprises a first frequency band oscillator array 1, a second frequency band oscillator array 2, a first filtering module 3, a second filtering module 4 and a combining module 5.

[0026] The first frequency band oscillator array 1 provided in this solution includes multiple first frequency band oscillator sub-modules 11 and a first power division module 12. The multiple first frequency band oscillator sub-modules 11 are connected to the first filtering module 3 through the first power division module 12. Specifically, multiple output ends of the first power division module 12 are respectively connected to different first frequency band oscillator sub-modules 11, and the input end of the first power division module 12 is connected to the first filtering module 3.

[0027] The second frequency band vibrator array 2 includes a plurality of second frequency band vibrator sub-modules 21 and a second power division module 22. The plurality of second frequency band vibrator sub-modules 21 are connected to the second filter module 4 through the second power division module 22. Specifically, the plurality of output ends of the second power division module 22 are respectively connected to different second frequency band vibrator sub-modules 21, and the input end of the second power division module 22 is connected to the second filter module 4. The phase centers of the plurality of first frequency band vibrator sub-modules 11 and the plurality of second frequency band vibrator sub-modules 21 coincide.

[0028] Among them, after the uplink data is sent to the first power division module 12 or the second power division module 22 via the first filter module 3 or the second filter module 4, it is distributed to each connected first frequency band oscillator sub-module 11 via the first power division module 12, or distributed to each connected second frequency band oscillator sub-module 21 via the second power division module 22, so as to realize the uplink transmission of data. After the downlink data is sent to the first power division module 12 or the second power division module 22 via the first frequency band oscillator sub-module 11 or the second frequency band oscillator sub-module 21, the first power division module 12 or the second power division module 22 sends the downlink data to the combining module 5 via the first filter module 3 or the second filter module 4, so as to realize the downlink reception of data. This solution forms a first frequency band vibrator array 1 through a first power division module 12 and multiple first frequency band vibrator sub-modules 11, and forms a second frequency band vibrator array 2 through a second power division module 22 and multiple second frequency band vibrator sub-modules 21, effectively increasing the communication strength of the first frequency band vibrator array 1 and the second frequency band vibrator array 2, and improving the antenna signal reception and transmission quality.

[0029] In one embodiment, the first frequency band vibrator array 1 provided by the present solution includes two first frequency band vibrator sub-modules 11, and the second frequency band vibrator array 2 includes two second frequency band vibrator sub-modules 21, and the two first frequency band vibrator sub-modules 11 are located between the two second frequency band vibrator sub-modules 21, and the distance (the distance between the center points) between the first frequency band vibrator sub-module 11 and the adjacent first frequency band vibrator sub-module 11 or the adjacent second frequency band vibrator sub-module 21 is the first set distance. For example, assuming that the first set distance is 30mm, the distance between the adjacent vibrator sub-modules is 30mm, at this time, the distance between the two first frequency band vibrator sub-modules 11 is 30mm, the distance between the two second frequency band vibrator sub-modules 21 is 90mm, and the projection centers of the two first frequency band vibrator sub-modules 11 and the two second frequency band vibrator sub-modules 21 coincide, so that the phase centers of the first frequency band vibrator array 1 and the second frequency band vibrator array 2 coincide. In this solution, two first-band vibrator sub-modules 11 form a first-band vibrator array 1, and two second-band vibrator sub-modules 21 form a second-band vibrator array 2, so that the phase centers of the first-band vibrator array 1 and the second-band vibrator array 2 coincide with each other, thereby effectively increasing the communication strength of the first-band vibrator array 1 and the second-band vibrator array 2 and improving the antenna signal reception and transmission quality.

[0030] Optionally, the single-ended dual-band antenna provided by the present solution further includes a dielectric plate 6 and a plurality of vibrator mounting plates 7, wherein the plurality of vibrator mounting plates 7 are arranged at equal intervals and fixed on the dielectric plate 6, and each first-band vibrator submodule 11 and each second-band vibrator submodule 21 are respectively fixed on a vibrator mounting plate 7, wherein the two middle vibrator mounting plates 7 are respectively installed with a first-band vibrator submodule 11, and the two outer vibrator mounting plates 7 are respectively installed with a second-band vibrator submodule 21. Optionally, the vibrator mounting plate 7 is perpendicular to the dielectric plate 6, the distance between adjacent vibrator mounting plates 7 (the distance between the center points) is a first set distance, and the projection centers of the plurality of vibrator mounting plates 7 coincide, so that the phase centers of the first-band vibrator array 1 and the second-band vibrator array 2 installed on the vibrator mounting plate 7 coincide. Optionally, the feeding network provided by the present solution (the feeding network includes a combining module 5, various filter modules, and a power division module) can be installed on the dielectric plate 6 and / or the vibrator mounting plate 7. This solution installs the feeding network and the vibrator array through a dielectric plate 6 and multiple vibrator mounting plates 7, which facilitates the installation of the feeding network and the vibrator array, and makes it more convenient to achieve the overlap of the phase centers of the first frequency band vibrator array 1 and the second frequency band vibrator array 2. While reducing the number of antennas and the space occupied, it effectively improves the communication quality of the antenna in outdoor long-distance point-to-point communication.

[0031] In one embodiment, the first frequency band oscillator submodule 11 provided by the present solution includes a plurality of first frequency band oscillators 111 and a third power division module 112, and the plurality of first frequency band oscillators 111 are connected to the first power division module 12 through the third power division module 112. Specifically, the plurality of output ends of the third power division module 112 are respectively connected to a first frequency band oscillator 111, and the input end of the third power division module 112 is connected to an input end of the first power division module 12. Among them, after the uplink data is sent to the first power division module 12 through the first filtering module 3, it is distributed to each of the connected third power division modules 112 through the first power division module 12, and the uplink data is then distributed to each of the connected first frequency band oscillators 111 through the third power division module 112, and the uplink data is sent outward through the first frequency band oscillator 111 to realize the uplink transmission of data. After the downlink data is sent to the third power division module 112 via the first frequency band oscillator 111, the third power division module 112 sends the downlink data to the first power division module 12, and the first power division module 12 sends the downlink data to the combining module 5 via the first filtering module 3, thereby realizing downlink reception of data. In this solution, the third power division module 112 and a plurality of first frequency band oscillators 111 form a first frequency band oscillator submodule 11, which effectively increases the communication strength of the first frequency band oscillator submodule 11 and improves the quality of antenna signal transmission and reception.

[0032] Figure 3 A schematic diagram of a first frequency band oscillator module structure provided in an embodiment of the present application is shown in FIG. Figure 2 and Figure 3 As shown, each first frequency band oscillator submodule 11 provided by the present solution includes four first frequency band oscillators 111 arranged at equal intervals, and two adjacent first frequency band oscillators 111 are connected to the third power division module 112 via the fifth power division module 113. Specifically, the present solution is configured with two fifth power division modules 113, each fifth power division module 113 corresponds to two of the first frequency band oscillators 111, two output ends of the fifth power division module 113 are respectively connected to the two first frequency band oscillators 111 corresponding thereto, and the input ends of the two fifth power division modules 113 are respectively connected to one output end of the third power division module 112.

[0033] Among them, after the uplink data is sent to the first power division module 12 through the first filter module 3, it is distributed to each connected third power division module 112 through the first power division module 12, and each third power division module 112 distributes the uplink data to the connected fifth power division module 113. The uplink data is then distributed to each connected first frequency band oscillator 111 through the fifth power division module 113, and the uplink data is sent outward through the first frequency band oscillator 111 to achieve uplink data transmission. After the downlink data is sent to the fifth power division module 113 through the first frequency band oscillator 111, the fifth power division module 113 sends the downlink data to the connected third power division module 112, and the third power division module 112 sends the downlink data to the first power division module 12, and the downlink data is sent to the combining module 5 through the first filter module 3 through the first power division module 12, so as to achieve downlink data reception. In this solution, a first frequency band vibrator submodule 11 is formed by a third power division module 112, two fifth power division modules 113 and four first frequency band vibrators 111, which effectively increases the communication strength of the first frequency band vibrator submodule 11 and improves the antenna signal receiving and sending quality.

[0034] In one embodiment, the second frequency band oscillator submodule 21 provided by the present solution includes a plurality of second frequency band oscillators 211 and a fourth power division module 212, and the plurality of second frequency band oscillators 211 are connected to the second power division module 22 through the fourth power division module 212. Specifically, the plurality of output ends of the fourth power division module 212 are respectively connected to a second frequency band oscillator 211, and the input end of the fourth power division module 212 is connected to an input end of the second power division module 22. Among them, after the uplink data is sent to the second power division module 22 through the second filtering module 4, it is distributed to each of the connected fourth power division modules 212 through the second power division module 22, and the uplink data is then distributed to each of the connected second frequency band oscillators 211 through the fourth power division module 212, and the uplink data is sent outward through the second frequency band oscillator 211 to realize the uplink transmission of data. After the downlink data is sent to the fourth power division module 212 via the second frequency band oscillator 211, the fourth power division module 212 sends the downlink data to the second power division module 22, and the second power division module 22 sends the downlink data to the combining module 5 via the second filtering module 4, thereby realizing downlink reception of the data. In this solution, the second frequency band oscillator submodule 21 is formed by the fourth power division module 212 and a plurality of second frequency band oscillators 211, which effectively increases the communication strength of the second frequency band oscillator submodule 21 and improves the quality of antenna signal transmission and reception.

[0035] Figure 4 A schematic diagram of a sub-module structure of a second frequency band oscillator provided in an embodiment of the present application, such as Figure 2 and Figure 4 As shown, each second frequency band oscillator submodule 21 provided by the present solution includes two second frequency band oscillators 211, and the two second frequency band oscillators 211 are connected to the second power division module 22 through the fourth power division module 212. Specifically, the two output ends of the fourth power division module 212 are respectively connected to one second frequency band oscillator 211, and the input end of the fourth power division module 212 is connected to one input end of the second power division module 22.

[0036] Optionally, the vibrators provided in this solution (including the first frequency band vibrators 111 and the second frequency band vibrators 211) are directional dipoles, and the length of the two vibrator arms of each vibrator is 1 / 4 of the wavelength of the corresponding frequency band, and the length of the two arms is close to 1 / 2 of the wavelength of the corresponding frequency band. In this solution, each vibrator and the feeding network are connected by microstrip line coupling feeding. Among them, the distance between adjacent first frequency band vibrators 111 is the second set distance, and the distance between adjacent second frequency band vibrators 211 is the third set distance. Optionally, the second set distance is 30mm, and the second set distance is 64mm. This solution is divided into a high-frequency path and a low-frequency path starting from the input end of the combiner. The high-frequency path and the low-frequency path are then connected to each vibrator with equal amplitude through a power division network to realize a single-ended dual-frequency array antenna.

[0037] Among them, after the uplink data is sent to the second power division module 22 through the second filter module 4, it is distributed to each connected fourth power division module 212 through the second power division module 22, and the uplink data is distributed to each connected second frequency band oscillator 211 through the fourth power division module 212, and the uplink data is sent outward through the second frequency band oscillator 211 to achieve uplink data transmission. After the downlink data is sent to the fourth power division module 212 through the second frequency band oscillator 211, the fourth power division module 212 sends the downlink data to the second power division module 22, and the downlink data is sent to the combining module 5 through the second power division module 22 through the second filter module 4, so as to achieve downlink data reception. This solution forms a second frequency band oscillator submodule 21 through the fourth power division module 212 and two second frequency band oscillators 211, which effectively increases the communication strength of the second frequency band oscillator submodule 21 and improves the antenna signal reception and transmission quality.

[0038] Figure 5 is a schematic diagram of a feeding network structure provided in an embodiment of the present application, such as Figure 2 and Figure 5 As shown, the feeding network provided by the present solution includes a combining module 5, a first filtering module 3, a second filtering module 4, a first power dividing module 12, a second power dividing module 22, two third power dividing modules 112, two fourth power dividing modules 212 and four fifth power dividing modules 113. The input end of the combining module 5 is simultaneously connected to one end of the first filtering module 3 and one end of the second filtering module 4, the other end of the first filtering module 3 is connected to the input end of the first power dividing module 12, and the other end of the second filtering module 4 is connected to the input end of the second power dividing module 22. The two output ends of the first power dividing module 12 are respectively connected to the input end of a third power dividing module 112, the two output ends of each third power dividing module 112 are respectively connected to a fifth power dividing module 113, and the output end of each fifth power dividing module 113 is respectively used to connect to a first frequency band oscillator 111. The two output ends of the second power division module 22 are respectively connected to a fourth power division module 212, and the output ends of each fourth power division module 212 are respectively used to connect a second frequency band oscillator 211. The components of the feeding network provided by this scheme can be electrically connected through a planar microstrip line, thereby reducing the space occupied by the single-ended dual-frequency antenna. This scheme realizes the division of the data path into a high-frequency path and a low-frequency path through a feeding network. The high-frequency path and the low-frequency path are respectively connected to each oscillator through corresponding filtering and power division networks, thereby realizing the data transceiver path of the single-ended dual-frequency array antenna, realizing the unification of the array frequency bands of the two frequency bands and the coincidence of the phase centers of the two arrays, and improving the quality of antenna signal transceiver.

[0039] In one embodiment, the first filter module 3 provided in this scheme adopts a first filter branch, and the second filter module 4 adopts a second-order filter branch, wherein, since the second frequency band is wider, the second filter module 4 adopts a second-order filter (second-order filter branch), wherein the out-of-band suppression of the second filter module 4 on the first filter module 3 is above 25dB, and the out-of-band suppression of the first filter module 3 on the second filter module 4 is above 25dB, and the return loss characteristic S11<-15dB of the entire single-ended dual-frequency antenna can achieve better antenna data transmission and reception. Among them, in the VSWR (voltage standing wave ratio) parameter from the input end of the combiner module 5 to the first frequency band end of the first frequency band path, the standing wave at the first frequency band end in the entire working frequency band is less than 1.5, which can achieve impedance matching between the feeding network and the first frequency band oscillator 111, and in the VSWR (voltage standing wave ratio) parameter from the input end of the combiner module 5 to the second frequency band end of the second frequency band path, the standing wave at the second frequency band end in the entire working frequency band is less than 2, which can achieve impedance matching between the feeding network and the second frequency band oscillator 211. The RF path is divided into a low-frequency path (second frequency band path) and a high-frequency path (first frequency band path) through the combiner module 5, and each path is connected to its power division network to connect the antenna oscillator, thereby realizing the array band unification of the two WiFi frequency bands (2.4G and 5.8G) and the coincidence of the two array phase centers. In addition, the feeding network provided by the present solution uses an open-end coupling method to excite its dipole arm, thereby effectively increasing the communication strength of the first frequency band dipole 111 and the second frequency band dipole 211, and improving the antenna signal receiving and sending quality.

[0040] As described above, the first frequency band vibrator array 1 is connected to the input end of the combining module 5 through the first filtering module 3, and the second frequency band vibrator array 2 is connected to the input end of the combining module 5 through the second filtering module 4, wherein the frequency band of the first frequency band vibrator array 1 is higher than the frequency band of the second frequency band vibrator array 2, realizing a single-ended dual-frequency array antenna, effectively reducing the number of antennas and the space occupation, and the phase center of the first frequency band vibrator array 1 coincides with the phase center of the second frequency band vibrator array 2, and the phase center of the first frequency band vibrator array 1 and the phase center of the second frequency band vibrator array 2 can be simultaneously oriented toward the wirelessly connected device, effectively improving the communication quality of the antenna in outdoor long-distance point-to-point communication. At the same time, the first power division module 12 and multiple first frequency band vibrator sub-modules 11 form the first frequency band vibrator array 1, and the second power division module 22 and multiple second frequency band vibrator sub-modules 21 form the second frequency band vibrator array 2, effectively increasing the communication strength of the first frequency band vibrator array 1 and the second frequency band vibrator array 2, and improving the antenna signal receiving and sending quality.

[0041] Figure 6 A schematic diagram of the structure of a signal transfer device provided in an embodiment of the present application is given. Figure 6The signal transfer device provided in this solution (for example, a WiFi signal transfer device for connecting unmanned equipment via WiFi communication) includes a signal transfer device body 8 and a unit dual-frequency antenna 9 as provided in any of the above embodiments, wherein the signal transceiver end of the signal transfer device body 8 is connected to the combining module of the unit dual-frequency antenna 9, and the signal transfer device body 8 realizes single-end dual-frequency data communication through the unit dual-frequency antenna 9.

[0042] Optionally, the signal relay device can be configured with a rotating mechanism, and the direction of the signal relay device can be rotated by the rotating mechanism so that the unit dual-band antenna 9 rotates in the direction of the connected device, so that the device can be within the maximum gain point range of the first frequency band vibrator array and the second frequency band vibrator array at the same time, thereby improving communication quality.

[0043] As described above, the unit dual-frequency antenna 9 is connected to the signal transfer device body 8, and the unit dual-frequency antenna 9 connects the first frequency band vibrator array to the input end of the combiner module through the first filtering module, and connects the second frequency band vibrator array to the input end of the combiner module through the second filtering module, wherein the frequency band of the first frequency band vibrator array is higher than the frequency band of the second frequency band vibrator array, which effectively reduces the number of antennas and the space occupation in the signal transfer device, and the phase center of the first frequency band vibrator array coincides with the phase center of the second frequency band vibrator array, and the phase center of the first frequency band vibrator array and the phase center of the second frequency band vibrator array can be simultaneously directed toward the wirelessly connected device, effectively improving the communication quality of the antenna in outdoor long-distance point-to-point communication, and effectively reducing the angle that the signal transfer device needs to adjust to point the signal center to the connected device after switching the connection frequency band, thereby improving the quality and stability of wireless communication.

[0044] The above are only preferred embodiments of the present application and the technical principles used. The present application is not limited to the specific embodiments provided herein, and various obvious changes, readjustments and substitutions that can be made by those skilled in the art will not deviate from the scope of protection of the present application. Therefore, although the present application is described in more detail through the above embodiments, the present application is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the claims.

Claims

1. A single-ended dual-frequency antenna, characterized in that: It includes a first frequency band vibrator array, a second frequency band vibrator array, a first filtering module, a second filtering module and a combining module, wherein: The first frequency band oscillator array is connected to the input end of the combining module through the first filtering module, and the second frequency band oscillator array is connected to the input end of the combining module through the second filtering module; The frequency band of the first-frequency-band vibrator array is higher than the frequency band of the second-frequency-band vibrator array, and the phase center of the first-frequency-band vibrator array coincides with the phase center of the second-frequency-band vibrator array.

2. The single-ended dual-frequency antenna according to claim 1, characterized in that: The first frequency band oscillator array includes multiple first frequency band oscillator sub-modules and a first power division module, and the multiple first frequency band oscillator sub-modules are connected to the first filtering module through the first power division module; the second frequency band oscillator array includes multiple second frequency band oscillator sub-modules and a second power division module, and the multiple second frequency band oscillator sub-modules are connected to the second filtering module through the second power division module.

3. A single-ended dual-frequency antenna according to claim 2, characterized in that: The first-band oscillator submodule includes a plurality of first-band oscillators and a third power division module, and the plurality of first-band oscillators are connected to the first power division module via the third power division module.

4. The single-ended dual-frequency antenna according to claim 3, characterized in that: Each of the first-frequency-band oscillator sub-modules includes four first-frequency-band oscillators arranged at equal intervals, and two adjacent first-frequency-band oscillators are connected to the third power division module via a fifth power division module.

5. The single-ended dual-frequency antenna according to claim 2, characterized in that: The second frequency band oscillator submodule includes a plurality of second frequency band oscillators and a fourth power division module, and the plurality of second frequency band oscillators are connected to the second power division module via the fourth power division module.

6. The single-ended dual-frequency antenna according to claim 5, characterized in that: Each of the second-frequency-band oscillator sub-modules includes two second-frequency-band oscillators, and the two second-frequency-band oscillators are connected to the second power division module via the fourth power division module.

7. The single-ended dual-frequency antenna according to claim 2, characterized in that: The first frequency band vibrator array includes two first frequency band vibrator sub-modules, the second frequency band vibrator array includes two second frequency band vibrator sub-modules, the two first frequency band vibrator sub-modules are located between the two second frequency band vibrator sub-modules, and the distance between the first frequency band vibrator sub-module and the adjacent first frequency band vibrator sub-module or the adjacent second frequency band vibrator sub-module is a first set distance.

8. The single-ended dual-frequency antenna according to claim 2, characterized in that: The single-ended dual-band antenna also includes a dielectric plate and a plurality of vibrator mounting plates, wherein the plurality of vibrator mounting plates are arranged at equal intervals and fixed on the dielectric plate, and each of the first-frequency-band vibrator sub-modules and each of the second-frequency-band vibrator sub-modules are respectively fixed on one of the vibrator mounting plates.

9. The single-ended dual-frequency antenna according to claim 1, characterized in that: The first filtering module includes a first filtering branch, and the second filtering module includes a second-order filtering branch.

10. A signal transfer device, characterized in that: It comprises a signal transfer device body and a unit dual-frequency antenna as described in any one of claims 1 to 9, wherein a signal transceiver end of the signal transfer device body is connected to a combining module of the unit dual-frequency antenna.

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