Multi-system combined antenna

Abstract

The embodiment of the invention discloses a multi-system combined antenna, and relates to the technical field of antennae, and the multi-system combined antenna comprises a first dielectric substrate, a grounding plate, a GNSS antenna, an LORA antenna, a 4G antenna and a WIFI / BT antenna. The grounding plate is arranged on the upper side of the first dielectric substrate; the GNSS antenna is connected with the grounding plate and is arranged on the upper side of the grounding plate; the LORA antenna is arranged on the upper side of the GNSS antenna and penetrates through the GNSS antenna to be connected with the grounding plate; the 4G antenna and the WIFI / BT antenna are arranged on the first dielectric substrate at intervals, the 4G antenna and the WIFI / BT antenna are both connected with the grounding plate, and the 4G antenna and the WIFI / BT antenna are both arranged on the periphery of the GNSS antenna at intervals, through the above structural design, the GNSS antenna, the LORA antenna, the 4G antenna and the WIFI / BT antenna can be integrated together to form the combined antenna, and the combined antenna can be applied to the field of antenna communication. The integration level of the antenna is greatly improved, the size is reduced, and the antenna is convenient to install and arrange.

Description

Technical Field

[0001] The present invention relates to the technical field of antennas, and in particular, to a multi-system combined antenna. Background Art

[0002] With the continuous development of wireless communication technologies, satellite positioning systems are deeply integrated with wireless communication technologies such as 5G and the Internet of Things (IoT), jointly promoting wide applications in many scenarios such as intelligent transportation, precision agriculture, and mining surveying.

[0003] The integration of different communication systems has put forward new requirements for antennas. Existing antennas are mostly independently set, with low integration, and need to be improved. Summary of the Invention

[0004] The technical problem to be solved by the embodiments of the present invention is how to provide a combined antenna that can integrate multiple antennas together.

[0005] To solve the above problems, an embodiment of the present invention provides a multi-system combined antenna, which includes a first dielectric substrate, a ground plane, a GNSS antenna, a LORA antenna, a 4G antenna, and a WIFI / BT antenna; the ground plane is disposed on the upper side of the first dielectric substrate; the GNSS antenna is connected to the ground plane and is disposed on the upper side of the ground plane; the LORA antenna is disposed on the upper side of the GNSS antenna and passes through the GNSS antenna to be connected to the ground plane; the 4G antenna and the WIFI / BT antenna are spaced apart and disposed on the first dielectric substrate, the 4G antenna and the WIFI / BT antenna are both connected to the ground plane, and the 4G antenna and the WIFI / BT antenna are both spaced apart and disposed on the outer periphery of the GNSS antenna.

[0006] A further technical solution thereof is that the GNSS antenna includes a first radiator, a second radiator, and a second dielectric substrate, and the first radiator and the second radiator are spaced apart from the inside to the outside and disposed on the second dielectric substrate.

[0007] A further technical solution thereof is that the number of the second radiators is multiple, and the multiple second radiators are evenly distributed around the first radiator.

[0008] A further technical solution thereof is that the GNSS antenna further includes metal posts, and the second radiators are all connected to the ground plane through one of the metal posts.

[0009] A further technical solution thereof is that the GNSS antenna further includes 4 feeding probes, and the four feeding probes are evenly distributed around the center line of the second dielectric substrate and are all connected to the second dielectric substrate.

[0010] A further technical solution is that the LORA antenna includes a third dielectric substrate, a first radiating arm and a second radiating arm; the first radiating arm and the second radiating arm are respectively arranged on both sides of the third dielectric substrate, and the second radiating arm is connected to the ground plate.

[0011] A further technical solution is that the third dielectric substrate, the first radiating arm and the second radiating arm are all provided with legs passing through the second dielectric substrate.

[0012] A further technical solution is that the 4G antenna includes a third radiator, and the third radiator is arranged on the first dielectric substrate and connected to the ground plate.

[0013] A further technical solution is that the WIFI / BT antenna includes a fourth radiator, and the fourth radiator is arranged on the first dielectric substrate and connected to the ground plate.

[0014] Its further technical solution is that the LORA antenna includes a fifth radiator, a fourth dielectric substrate and a metal feeding post, the fifth radiator is arranged on the fourth dielectric substrate, one end of the metal feeding post is connected to the fifth radiator, and the other end of the metal feeding post passes through the second dielectric substrate and is connected to the ground plate.

[0015] Compared with the prior art, the technical effects achieved by the embodiments of the present invention include:

[0016] In an embodiment of the present invention, a multi-system combination antenna includes a first dielectric substrate, a ground plate, a GNSS antenna, a LORA antenna, a 4G antenna and a WIFI / BT antenna; the ground plate is arranged on the upper side of the first dielectric substrate; the GNSS antenna is connected to the ground plate and is arranged on the upper side of the ground plate; the LORA antenna is arranged on the upper side of the GNSS antenna and is connected to the ground plate through the GNSS antenna; the 4G antenna and the WIFI / BT antenna are arranged on the first dielectric substrate at intervals, the 4G antenna and the WIFI / BT antenna are both connected to the ground plate, and the 4G antenna and the WIFI / BT antenna are both arranged on the periphery of the GNSS antenna at intervals. Through the above structural design, the GNSS antenna, the LORA antenna, the 4G antenna and the WIFI / BT antenna can be integrated together to form a combination antenna, which greatly improves the integration of the antenna, reduces the volume, and facilitates the installation and arrangement of the antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0020] Figure 1 A schematic diagram of the structure of a multi-system combined antenna proposed in an embodiment of the present invention;

[0021] Figure 2 Another structural schematic diagram of a multi-system combined antenna proposed in an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of another structure of a multi-system combined antenna proposed in an embodiment of the present invention;

[0023] Figure 4 This is a schematic structural diagram of a multi-system combined antenna proposed in another embodiment of the present invention.

[0024] Reference numeral

[0025] A first dielectric substrate 10, a ground plate 20, a GNSS antenna 30, a LORA antenna 40, a 4G antenna 50 and a WIFI / BT antenna 60, a first radiator 31, a second radiator 32, a second dielectric substrate 33, a metal column 34, a feeding probe 35, a third dielectric substrate 41, a first radiating arm 42, a second radiating arm 43, a third radiator 51, a fourth radiator 61, a fifth radiator 44, a fourth dielectric substrate 45 and a metal feeding column 46. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Similar component numbers in the drawings represent similar components. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or their combinations.

[0028] It should also be understood that the terms used in the specification of the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of the present invention. As used in the specification of the embodiments of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include the plural forms.

[0029] See Figures 1-4 , an embodiment of the present invention provides a multi-system combined antenna, and the multi-system combined antenna includes a first dielectric substrate 10, a ground plane 20, a GNSS antenna 30, a LORA antenna 40, a 4G antenna 50, and a WIFI / BT antenna 60. The specific structure is introduced as follows:

[0030] Specifically, the GNSS antenna 30 is a hardware specifically for receiving signals of global navigation satellite systems (such as GPS, Beidou, GLONASS, Galileo), which converts the radio frequency signals transmitted by satellites into electrical signals for device positioning, navigation and timing. The LORA antenna 40 is a radio frequency antenna dedicated to long-distance and low-power Internet of Things communication, supporting LORA modulation technology (non-cellular LPWAN technology), and is suitable for sensor data backhaul in a wide-area environment (such as smart cities and agricultural monitoring). The 4G antenna 50 is a hardware device dedicated to supporting 4G LTE network communication, responsible for converting the electrical signals inside the device into electromagnetic waves and vice versa to achieve high-speed wireless data transmission. The WIFI / BT antenna 60 is a hardware component for supporting wireless network (WIFI) and Bluetooth (Bluetooth) communication, responsible for converting the electrical signals inside the device into electromagnetic waves and vice versa to achieve wireless data transmission.

[0031] The ground plane 20 is disposed on the upper side of the first dielectric substrate 10; the GNSS antenna 30 is connected to the ground plane 20 and is disposed on the upper side of the ground plane 20; the LORA antenna 40 is disposed on the upper side of the GNSS antenna 30 and passes through the GNSS antenna 30 to be connected to the ground plane 20; the 4G antenna 50 and the WIFI / BT antenna 60 are spaced apart and disposed on the first dielectric substrate 10. Both the 4G antenna 50 and the WIFI / BT antenna 60 are connected to the ground plane 20, and both the 4G antenna 50 and the WIFI / BT antenna 60 are spaced apart and disposed on the outer periphery of the GNSS antenna 30.

[0032] The grounding plate 20 is used for grounding and can be shared by the GNSS antenna 30, the LORA antenna 40, the 4G antenna 50, and the WIFI / BT antenna 60. The first dielectric substrate 10 can be shared by the 4G antenna 50 and the WIFI / BT antenna 60, and the two do not interfere with each other. The frequency bands of the GNSS antenna 30, the LORA antenna 40, the 4G antenna 50, and the WIFI / BT antenna 60 are different from each other, avoiding interference between them. Through the above structural design, it is possible to integrate the GNSS antenna 30, the LORA antenna 40, the 4G antenna 50, and the WIFI / BT antenna 60 together to form a combined antenna, greatly improving the integration degree of the antenna, reducing the volume, and facilitating the installation and arrangement of the antenna.

[0033] In an embodiment of the present invention, a multi-system combined antenna includes a first dielectric substrate 10, a grounding plate 20, a GNSS antenna 30, a LORA antenna 40, a 4G antenna 50, and a WIFI / BT antenna 60; the grounding plate 20 is disposed on the upper side of the first dielectric substrate 10; the GNSS antenna 30 is connected to the grounding plate 20 and is disposed on the upper side of the grounding plate 20; the LORA antenna 40 is disposed on the upper side of the GNSS antenna 30 and passes through the GNSS antenna 30 to be connected to the grounding plate 20; the 4G antenna 50 and the WIFI / BT antenna 60 are spaced apart and disposed on the first dielectric substrate 10, the 4G antenna 50 and the WIFI / BT antenna 60 are both connected to the grounding plate 20, and the 4G antenna 50 and the WIFI / BT antenna 60 are both spaced apart and disposed on the outer periphery of the GNSS antenna 30. Through the above structural design, it is possible to integrate the GNSS antenna 30, the LORA antenna 40, the 4G antenna 50, and the WIFI / BT antenna 60 together to form a combined antenna, greatly improving the integration degree of the antenna, reducing the volume, and facilitating the installation and arrangement of the antenna.

[0034] Further, in some embodiments, the GNSS antenna 30 includes a first radiator 31, a second radiator 32, and a second dielectric substrate 33. The first radiator 31 and the second radiator 32 are spaced apart from the inside to the outside and disposed on the second dielectric substrate 33. The first radiator 31 and the second radiator 32 do not contact each other, and the second radiator 32 is disposed on one side of the first radiator 31. The first radiator 31 can be specifically circular.

[0035] Further, the number of the second radiators 32 is multiple, and the multiple second radiators 32 are evenly distributed around the first radiator 31. For example, in this embodiment, the number of the second radiators 32 is 4, and the 4 second radiators 32 are evenly distributed around the first radiator 31.

[0036] Further, the GNSS antenna 30 further includes metal posts 34, and each of the second radiators 32 is connected to the ground plane 20 through one of the metal posts 34. Specifically, the number of the metal posts 34 is 4, and each second radiator 32 is connected to the ground plane 20 through one metal post 34. Meanwhile, the 4 metal posts 34 serve to support the GNSS antenna 30 on the ground plane 20, so that there is a gap between the GNSS antenna 30 and the ground plane 20.

[0037] Further, the GNSS antenna 30 further includes 4 feeding probes 35, and the four feeding probes 35 are evenly distributed around the center line of the second dielectric substrate 33 and are all connected to the second dielectric substrate 33.

[0038] Specifically, 4 feeding probes 35 are evenly placed around the central axis of the second dielectric substrate 33. One end of each feeding probe 35 is connected to the second dielectric substrate 33 to form an open circuit, and the other ends respectively input equal-amplitude electrical signals at 0°, 90°, 180°, and 270° to perform coupled feeding on the first radiator 31 and the second radiator 32, and finally radiate circularly polarized signals externally, operating in the satellite communication frequency band of 1176 - 1278 MHz / 1535 - 1610 MHz.

[0039] Further, in some embodiments, the LORA antenna 40 includes a third dielectric substrate 41, a first radiation arm 42, and a second radiation arm 43; the first radiation arm 42 and the second radiation arm 43 are respectively disposed on two sides of the third dielectric substrate 41, and the second radiation arm 43 is connected to the ground plane 20. The third dielectric substrate 41, the first radiation arm 42, and the second radiation arm 43 are all provided with legs passing through the second dielectric substrate 33. It can be understood that the second dielectric substrate 33 is provided with holes for the legs to pass through.

[0040] Specifically, the LORA antenna 40 adopts a dipole form, and its structure includes a third dielectric substrate 41, a first radiation arm 42, a second radiation arm 43, and a ground plane 20. The first radiation arm 42 is located on one side of the third dielectric substrate 41, and the second radiation arm 43 is located on the other side of the third dielectric substrate 41. The lower end of the first radiation arm 42 is used to input an electrical signal, and the lower end of the second radiation arm 43 is connected to the ground plane 20. Finally, the first radiation arm 42 and the second radiation arm 43 operate in the radio frequency band of 470 MHz. Since the electrical length of a single-stage sub-antenna is relatively long, in this embodiment, adopting the half-wave dipole form can effectively reduce the physical height of the LORA antenna 40. At the same time, there is no antenna efficiency loss caused by bent lines, and the radiation pattern is an omnidirectional mode, which is well compatible with the GNSS antenna 30.

[0041] The shape of the LORA antenna 40 is umbrella-shaped, and other shapes such as rectangular and strip-shaped can also be adopted, as long as the formed electrical length conforms to the resonant frequency.

[0042] Further, in some embodiments, the 4G antenna 50 includes a third radiator 51, and the third radiator 51 is disposed on the first dielectric substrate 10 and connected to the ground plane 20.

[0043] Specifically, the 4G antenna 50 adopts a LOOP form, including a third radiator 51 and a ground plane 20. The third radiator 51 is laid on the first dielectric substrate 10. An electrical signal is input at one end of the third radiator 51, and the other end of the third radiator 51 is connected to the ground plane 20, so that the third radiator 51 operates in the 4G communication frequency band of 820 - 960 MHz / 1710 - 2690 MHz. The 4G antenna 50 adopts a LOOP form and has broadband characteristics. Different from the common PIFA antenna form, it is directly laid on the first dielectric substrate 10, enabling the antenna to obtain good clearance and greatly improving the antenna efficiency. In addition, a height difference is formed between the third radiator 51 and the first radiator 31 of the GNSS antenna 30 (the height of the third radiator 51 is lower than the height of the first radiator 31), ensuring that the non-circularity index of the GNSS antenna 30 reaches the optimum.

[0044] Further, in some embodiments, the WIFI / BT antenna 60 includes a fourth radiator 61, and the fourth radiator 61 is disposed on the first dielectric substrate 10 and connected to the ground plane 20.

[0045] Specifically, the WIFI / BT antenna 60 adopts an IFA antenna form, including a fourth radiator 61 (20) and a ground plane 20. The fourth radiator 61 is laid on the first dielectric substrate 10. An electrical signal is input at one end of the fourth radiator 61, so that the fourth radiator 61 operates in the frequency band of 2400 - 2480 MHz / 5000 - 6000 GHz.

[0046] Further, referring to Figure 4 , in some embodiments, the LORA antenna 40 includes a fifth radiator 44, a fourth dielectric substrate 45, and a metal feed post 46. The fifth radiator 44 is disposed on the fourth dielectric substrate 45. One end of the metal feed post 46 is connected to the fifth radiator 44, and the other end of the metal feed post 46 passes through the second dielectric substrate 33 and is connected to the ground plane 20. The shapes of the fifth radiator 44 and the fourth dielectric substrate 45 can both be circular.

[0047] Specifically, in this embodiment, the LORA antenna 40 adopts a single-stage sub-antenna form, including a fifth radiator 44, a fourth dielectric substrate 45, and a metal feeding post 46. The fifth radiator 44 is laid on the fourth dielectric substrate 45. One end of the metal feeding post 46 is connected to the fifth radiator 44, and the other end passes through the second dielectric substrate 33 and is connected to the feeding point on the ground plane 20 for inputting an electrical signal.

[0048] The electrical length of a single-stage sub-antenna is generally 1 / 4 wavelength, and its physical size is relatively long. Therefore, the antenna arm must adopt a bent form to reduce the height, which will also result in a reduction in the radiation efficiency of the antenna. In this embodiment, the form of welding a disk at the top is adopted, which is equivalent to loading a capacitor, effectively reducing the physical size of the antenna and lowering the operating frequency. After no longer adopting the bent form, the antenna efficiency is improved at the same height.

[0049] In the above embodiments, the descriptions of the respective embodiments have their own focuses. For the parts not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0050] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0051] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined.

[0052] In the present invention, unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] In the present invention, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0054] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0055] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, provided that these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these changes and modifications therein.

[0056] As described above, the above is the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A multi-system combined antenna, characterized in that: It includes a first dielectric substrate, a ground plate, a GNSS antenna, a LORA antenna, a 4G antenna and a WIFI / BT antenna; the ground plate is arranged on the upper side of the first dielectric substrate; the GNSS antenna is connected to the ground plate and is arranged on the upper side of the ground plate; the LORA antenna is arranged on the upper side of the GNSS antenna and is connected to the ground plate through the GNSS antenna; the 4G antenna and the WIFI / BT antenna are arranged on the first dielectric substrate at intervals, the 4G antenna and the WIFI / BT antenna are both connected to the ground plate, and the 4G antenna and the WIFI / BT antenna are both arranged on the periphery of the GNSS antenna at intervals.

2. The multi-system combined antenna according to claim 1, characterized in that: The GNSS antenna includes a first radiator, a second radiator and a second dielectric substrate. The first radiator and the second radiator are spaced from inside to outside on the second dielectric substrate.

3. The multi-system combined antenna according to claim 2, characterized in that: There are multiple second radiators, and the multiple second radiators are evenly distributed around the first radiator.

4. The multi-system combined antenna according to claim 2 or 3, characterized in that: The GNSS antenna further includes a metal column, and each of the second radiators is connected to the ground plate via one of the metal columns.

5. The multi-system combined antenna according to claim 1, characterized in that: The GNSS antenna further includes four feeding probes, which are evenly distributed around the center line of the second dielectric substrate and are all connected to the second dielectric substrate.

6. The multi-system combined antenna according to claim 2, characterized in that: The LORA antenna includes a third dielectric substrate, a first radiating arm and a second radiating arm; the first radiating arm and the second radiating arm are respectively arranged on both sides of the third dielectric substrate, and the second radiating arm is connected to the ground plate.

7. The multi-system combined antenna according to claim 6, characterized in that: The third dielectric substrate, the first radiating arm and the second radiating arm are all provided with legs passing through the second dielectric substrate.

8. The multi-system combined antenna according to claim 1, characterized in that: The 4G antenna includes a third radiator, and the third radiator is disposed on the first dielectric substrate and connected to the ground plate.

9. The multi-system combined antenna according to claim 1, characterized in that: The WIFI / BT antenna includes a fourth radiator, which is disposed on the first dielectric substrate and connected to the ground plate.

10. The multi-system combined antenna according to claim 2, characterized in that: The LORA antenna includes a fifth radiator, a fourth dielectric substrate and a metal feeding post, wherein the fifth radiator is arranged on the fourth dielectric substrate, one end of the metal feeding post is connected to the fifth radiator, and the other end of the metal feeding post passes through the second dielectric substrate and is connected to the ground plate.

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