Omnidirectional antenna and communication equipment

Abstract

The utility model relates to the field of communication equipment, and discloses an omnidirectional antenna and communication equipment, the omnidirectional antenna comprises a housing assembly, a first frequency band antenna, a second frequency band antenna, a multiplexer and a main feeder, the housing assembly comprises a guide structure and a housing, and the guide structure is installed in the housing; the first frequency band antenna is arranged in the shell and comprises a first radiation unit; the second frequency band antenna is arranged in the shell and comprises a second radiation unit; the multiplexer is installed in the shell, the multiplexer is located between the first frequency band antenna and the second frequency band antenna, the multiplexer comprises a public port and at least two antenna connection ports, and the first frequency band antenna and the second frequency band antenna are connected with the multiplexer through the antenna connection ports; the main feeder line is connected to the common port, and the main feeder line is arranged in the guide structure in a penetrating manner. The technical problem that an unmanned aerial vehicle ground end control device can only generate effective radiation on radio signals of one frequency band in the same time period is solved.

Description

Technical Field

[0001] The utility model relates to the field of communication equipment, in particular to an omnidirectional antenna and communication equipment. Background Art

[0002] Currently, communication devices need to transmit signals via radio, such as unmanned aerial vehicles and ground stations. Omnidirectional antennas can effectively radiate radio signals, and are therefore widely used in unmanned aerial vehicles.

[0003] In the related art, the omnidirectional antenna on the unmanned aerial vehicle generally adopts a rod-shaped structure. The omnidirectional antenna includes a radiating unit and a main feeder. The radiating unit includes an upper radiating arm and a lower radiating arm. The main feeder includes two conductors separated from each other, one of which is connected to the upper radiating arm, and the other is connected to the lower radiating arm. Therefore, the radiating unit can effectively radiate the radio signal emitted by the main feeder.

[0004] Unmanned aerial vehicles usually have two or more communication frequency bands. Correspondingly, ground stations also need two or more communication frequency bands. Currently, unmanned aerial vehicles and ground stations mostly use rod antennas, and most rod antennas are single-frequency antennas, that is, the rod antenna only includes one radiation unit, resulting in the unmanned aerial vehicle only being able to effectively radiate radio signals of one frequency band in a period of time. Utility Model Content

[0005] The embodiment of the utility model aims to provide an omnidirectional antenna to solve the technical problem in the prior art that an unmanned aerial vehicle can only effectively radiate radio signals of one frequency band in a period of time.

[0006] The utility model embodiment solves its technical problems by adopting the following technical solutions:

[0007] An omnidirectional antenna is provided, comprising:

[0008] A housing assembly, the housing assembly comprising a guide structure and a housing, the guide structure being installed in the housing;

[0009] A first frequency band antenna, the first frequency band antenna is installed in the housing, the first frequency band antenna comprises a first radiation unit, and the first frequency band antenna is used to receive or transmit signals;

[0010] A second frequency band antenna, the second frequency band antenna is installed in the housing, the second frequency band antenna includes a second radiation unit, the second frequency band antenna is used to receive or transmit signals, and the second frequency band antenna is coaxially arranged with the first frequency band antenna;

[0011] a multiplexer, the multiplexer being installed in the housing, the multiplexer being located between the first frequency band antenna and the second frequency band antenna, the multiplexer comprising a common port and at least two antenna connection ports, the first frequency band antenna and the second frequency band antenna being connected to the multiplexer via the antenna connection ports;

[0012] A main feeder line, one end of which is connected to the common port, and the main feeder line is passed through the guide structure.

[0013] In some embodiments, the first frequency band antenna includes a first radiating element, a third radiating element, a first power divider, a first radio frequency line, and a third radio frequency line;

[0014] The first radiation unit includes a first upper radiation arm and a first lower radiation arm, and the third radiation unit includes a third upper radiation arm and a third lower radiation arm;

[0015] The first power divider is located between the first radiation unit and the third radiation unit, and the first power divider includes a first input end and two first output ends, the first input end is connected to one of the antenna connection ports; one of the first output ends is connected to the first upper radiation arm and the first lower radiation arm via the first radio frequency line, and the other first output end is connected to the third upper radiation arm and the third lower radiation arm via the third radio frequency line;

[0016] The second frequency band antenna includes a second radiation unit, a fourth radiation unit, a second power divider, a second radio frequency line and a fourth radio frequency line;

[0017] The second radiation unit includes a second upper radiation arm and a second lower radiation arm, and the fourth radiation unit includes a fourth upper radiation arm and a fourth lower radiation arm;

[0018] The second power divider is located between the second radiation unit and the fourth radiation unit, and the second power divider includes a second input end and two second output ends, the second input end is connected to another antenna connection port; one second output end is connected to the second upper radiation arm and the second lower radiation arm via the second radio frequency line, and the other second output end is connected to the fourth upper radiation arm and the fourth lower radiation arm via the fourth radio frequency line.

[0019] In some embodiments, the first upper radiating arm comprises an upper cylindrical structure and an upper annular cover, the first lower radiating arm comprises a lower cylindrical structure and a lower annular cover, the upper cylindrical structure and the lower cylindrical structure are coaxially arranged and have the same structure, the upper annular cover is connected to one end of the upper cylindrical structure away from the lower cylindrical structure, and the lower annular cover is connected to one end of the lower cylindrical structure away from the upper cylindrical structure;

[0020] The first radio frequency line comprises a first inner conductor, a first insulating medium, a first outer conductor and a first insulating sheath which are sequentially sleeved from the inside to the outside, the first insulating medium separates the first inner conductor from the first outer conductor, the first inner conductor is connected to one end of the lower cylindrical structure facing the upper cylindrical structure, and the first outer conductor is connected to one end of the upper cylindrical structure facing the lower cylindrical structure;

[0021] In some embodiments, the housing assembly further comprises an end cap and a base component, the guide structure is coaxially arranged with the housing, one end of the guide structure and one end of the housing are both connected to the end cap, and the other end of the guide structure and the other end of the housing are both connected to the base component;

[0022] The first RF line, the second RF line, the third RF line and the fourth RF line are all inserted into the guide structure, and the first power divider, the second power divider and the multiplexer are all installed on the outer surface of the guide structure; the inner side of the upper annular cover is connected to the outer surface of the guide structure, and the outer side of the upper annular cover is connected to one end of the upper cylindrical structure away from the lower cylindrical structure; the inner side of the lower annular cover is connected to the outer surface of the guide structure, and the outer side of the lower annular cover is connected to one end of the lower cylindrical structure away from the upper cylindrical structure.

[0023] In some embodiments, the base component includes a base body and a joint, the base body is provided with a first installation cavity, a second installation cavity and a connecting cavity, the first installation cavity is connected with the second installation cavity through the connecting cavity; one end of the outer shell is connected to the base body and placed in the first installation cavity, the guide structure is installed in the connecting cavity, and the joint is installed in the second installation cavity.

[0024] In some embodiments, the main feeder includes a feeder inner conductor, a feeder insulating medium, a feeder outer conductor and a feeder insulating sheath which are sequentially sheathed from the inside to the outside, and the feeder insulating medium separates the feeder inner conductor from the feeder outer conductor;

[0025] The connector comprises an inner connection terminal, an insulating ring and an outer connection terminal, the insulating ring is sleeved on the inner connection terminal, the outer connection terminal is sleeved on the insulating ring, the cavity wall of the second mounting cavity is sleeved on the outer connection terminal, and the insulating ring separates the outer connection terminal from the inner connection terminal;

[0026] The inner conductor of the feeder is connected to the inner connection terminal, and the outer conductor of the feeder is connected to the outer connection terminal.

[0027] In some embodiments, the base component also includes a fixed bracket, which is sleeved on the base body. A limiting groove is opened on the outer surface of the base body. A limiting block is provided on the fixed bracket, and the limiting block abuts against the groove wall of the limiting groove, so that the base body is fixed relative to the fixed bracket.

[0028] In some embodiments, there are multiple limiting grooves, and all of the limiting grooves are evenly distributed around the central axis of the base body.

[0029] In some embodiments, the end cover comprises a main body, a first annular wall and a second annular wall, the first annular wall and the second annular wall are coaxially arranged and both connected to one end of the main body facing the base component, and there is a gap between the outer surface of the first annular wall and the inner surface of the second annular wall;

[0030] The first annular wall is sleeved on the guide structure, and one end of the guide structure is in contact with the main body; the second annular wall is sleeved on the outer shell, and one end of the outer shell is in contact with the main body.

[0031] In another embodiment, the utility model further provides a communication device, comprising any one of the above-mentioned omnidirectional antennas.

[0032] Compared with the prior art, the multiplexer can transmit currents of different frequencies to the first frequency band antenna and the second frequency band antenna respectively, so that the first frequency band antenna can effectively radiate radio signals of one frequency band, and the second frequency band antenna can effectively radiate radio signals of another frequency band; ultimately, the omnidirectional antenna in this embodiment can effectively radiate radio signals of two frequency bands at the same time.

[0033] In addition, the guide structure separates the main feed line from other components, so that the main feed line will not occupy too much space outside the guide structure inside the shell, reducing the interference of the main feed line to other components and making the internal structure of the omnidirectional antenna more compact and firm.

[0034] Since the communication device includes an omnidirectional antenna, the omnidirectional antenna in this embodiment can effectively radiate radio signals of two frequency bands at the same time, and thus the communication device can also transmit and receive radio signals of two frequency bands at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] One or several 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.

[0036] Figure 1is a three-dimensional diagram of an omnidirectional antenna in one embodiment of the utility model;

[0037] Figure 2 yes Figure 1 A perspective view of the medium omnidirectional antenna without the housing, end cap and base components;

[0038] Figure 3 yes Figure 1 A cross-sectional view of the medium omnidirectional antenna;

[0039] Figure 4 yes Figure 1 A partial cross-sectional view of the medium omnidirectional antenna;

[0040] Figure 5 yes Figure 1 A three-dimensional diagram of the base component of the medium omni-directional antenna without the fixing bracket;

[0041] Figure 6 yes Figure 1 A cross-sectional view of the base body and the connector of the medium omni-directional antenna when they are disassembled from each other;

[0042] Figure 7 yes Figure 1 A partial cross-sectional view of another part of the middle omnidirectional antenna;

[0043] Figure 8 yes Figure 1 A perspective view of a fixing bracket of a medium omni-directional antenna;

[0044] Fig. 9 yes Figure 1 A perspective view of the end cap of the omnidirectional antenna.

[0045] Reference numerals:

[0046] 100, omnidirectional antenna; 10, shell assembly; 12, guide structure; 14, shell; 16, end cover; 162, main body; 164, first annular wall; 166, second annular wall; 18, base component; 182, base body; 18202, first installation cavity; 18204, second installation cavity; 18206, connecting cavity; 18208, limiting groove; 1822, annular protrusion; 184, joint; 1842, inner layer connection Terminal; 1844, insulating ring; 1846, outer connection terminal; 186, fixing bracket; 1862, limit block; 1864, abutting end surface; 20, first frequency band antenna; 21, first radiation unit; 212, first upper radiation arm; 2122, upper cylindrical structure; 2124, upper annular cover; 214, first lower radiation arm; 2142, lower cylindrical structure; 2144, lower annular cover; 22, third radiation unit; 222 , third upper radiation arm; 224, third lower radiation arm; 23, first power divider; 232, first input terminal; 234, first output terminal; 24, first radio frequency line; 242, first inner conductor; 244, first insulating medium; 246, first outer conductor; 248, first insulating sheath; 25, third radio frequency line; 30, second frequency band antenna; 31, second radiation unit; 312, second upper radiation arm; 314, second lower radiation arm ; 32. fourth radiation unit; 322. fourth upper radiation arm; 324. fourth lower radiation arm; 33. second power divider; 332. second input terminal; 334. second output terminal; 34. second radio frequency line; 35. fourth radio frequency line; 40. multiplexer; 42. antenna connection port; 44. common port; 50. main feeder; 52. feeder inner conductor; 54. feeder insulating medium; 56. feeder outer conductor; 58. feeder insulating sheath. DETAILED DESCRIPTION

[0047] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "connected" to another element, it can be directly on another element, or there can be one or more centered elements therebetween. The terms "upper", "lower", "left", "right", "upper end", "lower end", "top" and "bottom" used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the utility model 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 cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0048] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0049] The following describes an omnidirectional antenna 100 provided in an embodiment of the present application in detail through a specific embodiment in conjunction with all the drawings in the specification.

[0050] Please refer to Figure 1 , Figure 2 and Figure 3 In one embodiment of the utility model, an omnidirectional antenna 100 is disclosed, including a housing assembly 10, a first frequency band antenna 20, a second frequency band antenna 30, a multiplexer 40 and a main feeder 50, the housing assembly 10 includes a guide structure 12 and a housing 14, the guide structure 12 is installed in the housing 14; the first frequency band antenna 20 is installed in the housing 14, the first frequency band antenna 20 includes a first radiation unit 21, and the first frequency band antenna 20 is used to receive or transmit signals; the second frequency band antenna 30 is installed in the housing 14, the second frequency band antenna 30 includes a second radiation unit 21 The transmitting unit 31, the second frequency band antenna 30 is used to receive or transmit signals, and the second frequency band antenna 30 is coaxially arranged with the first frequency band antenna 20; the multiplexer 40 is installed in the housing 14, and the multiplexer 40 is located between the first frequency band antenna 20 and the second frequency band antenna 30. The multiplexer 40 includes a common port 44 and at least two antenna connection ports 42. The first frequency band antenna 20 and the second frequency band antenna 30 are connected to the multiplexer 40 through the antenna connection port 42; one end of the main feeder 50 is connected to the common port 44, and the main feeder 50 is passed through the guide structure 12.

[0051] Through the above structure, the communication device transmits the electrical signal to the multiplexer 40 via the main feeder 50, and the multiplexer 40 can transmit currents of different frequencies to the first frequency band antenna 20 and the second frequency band antenna 30 respectively, so that the first frequency band antenna 20 can effectively radiate the radio signal of one frequency band, and the second frequency band antenna 30 can effectively radiate the radio signal of another frequency band; finally, the omnidirectional antenna 100 in this embodiment can effectively radiate the radio signals of two frequency bands at the same time.

[0052] In addition, the guide structure 12 separates the main feed line 50 from other components, so that the main feed line 50 does not occupy too much space outside the guide structure 12 in the shell 14, reducing the interference of the main feed line 50 on other components and making the internal structure of the omnidirectional antenna 100 more compact and firm.

[0053] Specifically, in this embodiment, the multiplexer 40 is a duplexer; the omnidirectional antenna 100 has an overall cylindrical structure; the first frequency band antenna 20 includes a first radiation unit 21 and a third radiation unit 22, and a power divider is provided between the first radiation unit 21 and the third radiation unit 22, and the power divider makes the power and current frequency in the first radiation unit 21 and the third radiation unit 22 consistent, and the second frequency band antenna 30 has the same structure as the first frequency band antenna 20.

[0054] In other embodiments, the multiplexer 40 may also be a triplexer, and the corresponding omnidirectional antenna 100 also includes a third frequency band antenna; the omnidirectional antenna 100 may also be in other shapes, such as a rectangular parallelepiped; the first frequency band antenna 20 may also only include the first radiation unit 21, and the second frequency band antenna 30 may also only include the second radiation unit 31.

[0055] In some embodiments, the first frequency band antenna 20 includes a first radiation unit 21, a third radiation unit 22, a first power divider 23, a first radio frequency line 24 and a third radio frequency line 25; the first radiation unit 21 includes a first upper radiation arm 212 and a first lower radiation arm 214 ， The third radiation unit 22 includes a third upper radiation arm 222 and a third lower radiation arm 224; the first power divider 23 is located between the first radiation unit 21 and the third radiation unit 22, and the first power divider 23 includes a first input end 232 and two first output ends 234, and the first input end 232 is connected to an antenna connection port 42; one first output end 234 is connected to the first upper radiation arm 212 and the first lower radiation arm 214 via the first radio frequency line 24, and the other first output end 234 is connected to the third upper radiation arm 222 and the third lower radiation arm 224 via the third radio frequency line 25.

[0056] The second frequency band antenna 30 includes a second radiating element 31, a fourth radiating element 32, a second power divider 33, a second radio frequency line 34 and a fourth radio frequency line 35; the second radiating element 31 includes a second upper radiating arm 312 and a second lower radiating arm 314, and the fourth radiating element 32 includes a fourth upper radiating arm 322 and a fourth lower radiating arm 324; the second power divider 33 is located between the second radiating element 31 and the fourth radiating element 32, and the second power divider 33 includes a second input end 332 and two second output ends 334, and the second input end 332 is connected to another antenna connection port 42; one second output end 334 is connected to the second upper radiating arm 312 and the second lower radiating arm 314 via the second radio frequency line 34, and the other second output end 334 is connected to the fourth upper radiating arm 322 and the fourth lower radiating arm 324 via the fourth radio frequency line 35.

[0057] Through the above structure, the first power divider 23 divides the electrical signal in the main feed line 50 into two electrical signals with equal frequency and power, one of which is transmitted to the first radiation unit 21 via the first radio frequency line 24, and the other is transmitted to the third radiation unit 22 via the third radio frequency line 25, and then the first radiation unit 21 and the third radiation unit 22 superimpose the radio signal, so that the first frequency band antenna 20 can generate a higher gain. Similarly, the second frequency band antenna 30 can also generate a higher gain.

[0058] Specifically, in the present embodiment, the outer shape of the first upper radiation arm 212 and the outer shape of the first lower radiation arm 214 are both cylindrical structures, and the first upper radiation arm 212 has the same structure as the first lower radiation arm 214, and the first upper radiation arm 212 and the first lower radiation arm 214 are coaxially arranged and relatively set; the first radiation unit 21 and the third radiation unit 22 have the same structure and size, the second radiation unit 31 and the fourth radiation unit 32 have the same structure and size, the first radiation unit 21 and the second radiation unit 31 have the same structure, but the sizes may be the same or different, and the first radiation unit 21, the third radiation unit 22, the second radiation unit 31 and the fourth radiation unit 32 are all coaxially set.

[0059] In other embodiments, the first upper radiation arm 212 may also have other shapes, such as a column or a frustum with a polygonal cross section.

[0060] Please refer to Figure 4 In some embodiments, the first upper radiation arm 212 includes an upper cylindrical structure 2122 and an upper annular cover 2124, the first lower radiation arm 214 includes a lower cylindrical structure 2142 and a lower annular cover 2144, the upper cylindrical structure 2122 and the lower cylindrical structure 2142 are coaxially arranged and have the same structure, the upper annular cover 2124 is connected to one end of the upper cylindrical structure 2122 away from the lower cylindrical structure 2142, and the lower annular cover 2144 is connected to one end of the lower cylindrical structure 2142 away from the upper cylindrical structure 2122.

[0061] The first radio frequency line 24 includes a first inner conductor 242, a first insulating medium 244, a first outer conductor 246 and a first insulating sheath 248 which are sequentially sleeved from the inside to the outside. The first insulating medium 244 separates the first inner conductor 242 and the first outer conductor 246. The first inner conductor 242 is connected to one end of the lower cylindrical structure 2142 facing the upper cylindrical structure 2122, and the first outer conductor 246 is connected to one end of the upper cylindrical structure 2122 facing the lower cylindrical structure 2142.

[0062] Through the above structure, the first insulating medium 244 separates the first inner conductor 242 and the first outer conductor 246, so that the first inner conductor 242 and the first outer conductor 246 are not electrically connected to each other, so that the first upper radiation arm 212 and the first lower radiation arm 214 can be independent of each other, and thus the first radiation unit 21 can effectively radiate the radio signal.

[0063] Specifically, in this embodiment, the upper cylindrical structure 2122 and the lower cylindrical structure 2142 are both cylindrical and have the same structure, the upper annular cover 2124 and the lower annular cover 2144 are both circular sheet structures and have the same structure; the first inner conductor 242 is connected to the lower cylindrical structure 2142 by welding, and the first outer conductor 246 is also connected to the upper cylindrical structure 2122 by welding. In other embodiments, the upper cylindrical structure 2122 and the lower cylindrical structure 2142 can also be other shapes, such as a cylindrical structure with a polygonal cross section; correspondingly, the upper annular cover 2124 and the lower annular cover 2144 are also polygonal sheet structures.

[0064] The second RF line 34 includes a second inner conductor, a second insulating medium, a second outer conductor and a second insulating sheath, which are sequentially sleeved from the inside to the outside, and the second insulating medium separates the second inner conductor and the second outer conductor. The second inner conductor is connected to the second lower radiation arm 314 by welding, and the second outer conductor is also connected to the second upper radiation arm 312 by welding.

[0065] The third radio frequency line 25 includes a third inner conductor, a third insulating medium, a third outer conductor and a third insulating sheath which are sequentially sheathed from the inside to the outside, and the third insulating medium separates the third inner conductor from the third outer conductor. The third inner conductor is connected to the third lower radiation arm 224 by welding, and the third outer conductor is also connected to the third upper radiation arm 222 by welding.

[0066] The fourth radio frequency line 35 includes a fourth inner conductor, a fourth insulating medium, a fourth outer conductor and a fourth insulating sheath which are sequentially sheathed from the inside to the outside, and the fourth insulating medium separates the fourth inner conductor from the fourth outer conductor. The fourth inner conductor is connected to the fourth lower radiation arm 324 by welding, and the fourth outer conductor is also connected to the fourth upper radiation arm 322 by welding.

[0067] In some embodiments, the shell assembly 10 also includes an end cover 16 and a base component 18, the guide structure 12 is coaxially arranged with the outer shell 14, one end of the guide structure 12 and one end of the outer shell 14 are both connected to the end cover 16, and the other end of the guide structure 12 and the other end of the outer shell 14 are both connected to the base component 18.

[0068] The first RF line 24, the second RF line 34, the third RF line 25 and the fourth RF line 35 are all inserted into the guide structure 12, and the first power divider 23, the second power divider 33 and the multiplexer 40 are all installed on the outer surface of the guide structure 12; the inner side of the upper annular cover 2124 is connected to the outer surface of the guide structure 12, and the outer side of the upper annular cover 2124 is connected to the end of the upper cylindrical structure 2122 away from the lower cylindrical structure 2142; the inner side of the lower annular cover 2144 is connected to the outer surface of the guide structure 12, and the outer side of the lower annular cover 2144 is connected to the end of the lower cylindrical structure 2142 away from the upper cylindrical structure 2122.

[0069] Through the above structure, the inner space of the guide structure 12 is used for the main feeder 50, the first RF line 24, the second RF line 34, the third RF line 25 and the fourth RF line 35 to pass through, and the outer surface of the guide structure 12 is used for the connection of the power divider, the multiplexer 40, the upper annular cover 2124 and the lower annular cover 2144; the shell 14 is used to surround the first frequency band antenna 20, the second frequency band antenna 30 and the multiplexer 40 to prevent the components in the omnidirectional antenna 100 from being exposed; the end cap 16 and the base component 18 seal the two ends of the shell 14, and the end cap 16 and the base component 18 both support the guide structure 12 and the shell 14, so that the outer surface of the guide structure 12 and the inner surface of the shell 14 are separated from each other. Finally, the omnidirectional antenna 100 in this embodiment has a compact and firm structure.

[0070] Specifically, in this embodiment, the guide structure 12 is made of steel, the guide structure 12 and the shell 14 are both coaxially arranged cylindrical structures, the diameter of the guide structure 12 is smaller than the diameter of the shell 14, and the length of the guide structure 12 is adapted to the length of the shell 14. The upper annular cover 2124 and the lower annular cover 2144 are both connected to the guide structure 12 by welding; a plurality of circular through holes and a plurality of circular mounting holes are provided on the side wall of the guide structure 12, and the ends of the first RF line 24, the second RF line 34, the third RF line 25 and the fourth RF line 35 pass through the guide structure 12 through the through holes; the multiplexer 40 and the power divider are both plate-shaped structures, and the multiplexer 40 and the power divider are both installed on the guide structure 12 through mounting holes and screws. The guide structure 12 and the end cover 16, the shell 14 and the end cover 16, the guide structure 12 and the base component 18, and the shell 14 and the base component 18 are all fixedly connected by gluing.

[0071] In other embodiments, the guide structure 12 may also be made of other materials, such as copper; the guide structure 12 and the shell 14 may also have other structures, such as a cylindrical structure with a polygonal cross-section; the multiplexer 40 and the power divider may also be connected to the guide structure 12 in other ways, such as a mounting frame welded on the guide structure 12, and the multiplexer 40 and the power divider are both connected to the mounting frame.

[0072] Please refer to Figure 5 and Figure 6 In some embodiments, the base component 18 includes a base body 182 and a joint 184, and the base body 182 is provided with a first installation cavity 18202, a second installation cavity 18204 and a connecting cavity 18206, and the first installation cavity 18202 is connected with the second installation cavity 18204 via the connecting cavity 18206; one end of the shell 14 is connected to the base body 182 and placed in the first installation cavity 18202, the guide structure 12 is installed in the connecting cavity 18206, and the joint 184 is installed in the second installation cavity 18204.

[0073] Through the above structure, the first installation cavity 18202 provides an installation space for one end of the shell 14, the connecting cavity 18206 provides an installation space for one end of the guide structure 12, and the second installation cavity 18204 provides an installation space for the connector 184; then the base body 182 separates the connector 184 from the shell 14, and at the same time, the base body 182 also separates the outer surface of the guide structure 12 from the inner surface of the shell 14, so that the structure of the omnidirectional antenna 100 in this embodiment is more stable.

[0074] Specifically, in the present embodiment, the first mounting cavity 18202, the connecting cavity 18206 and the second mounting cavity 18204 are all coaxially arranged cylinders, the diameter of the first mounting cavity 18202 is greater than the diameter of the second mounting cavity 18204 and the diameter of the connecting cavity 18206, and the diameter of the second mounting cavity 18204 is greater than the diameter of the connecting cavity 18206; the first mounting cavity 18202 passes through one end of the base body 182, and the second mounting cavity 18204 passes through the other end of the base body 182, and an annular protrusion 1822 is provided on the side cavity wall of the first mounting cavity 18202, and the annular protrusion 1822 is connected to the bottom cavity wall of the first mounting cavity 18202, and the end of the annular protrusion 1822 facing away from the bottom cavity wall of the first mounting cavity 18202 abuts against the end of the shell 14, so that the end of the shell 14 is separated from the bottom cavity wall of the first mounting cavity 18202.

[0075] In other embodiments, the first installation cavity 18202 , the connecting cavity 18206 , and the second installation cavity 18204 may also be in other shapes, such as a rectangular parallelepiped; the end of the housing 14 may also directly abut against the bottom cavity wall of the first installation cavity 18202 .

[0076] Please refer to Figure 7 In some embodiments, the main feeder 50 includes a feeder inner conductor 52, a feeder insulating medium 54, a feeder outer conductor 56 and a feeder insulating sheath 58 which are sequentially arranged from the inside to the outside, and the feeder insulating medium 54 separates the feeder inner conductor 52 and the feeder outer conductor 56.

[0077] The connector 184 includes an inner layer connection terminal 1842, an insulating ring 1844 and an outer layer connection terminal 1846. The insulating ring 1844 is sleeved on the inner layer connection terminal 1842, the outer layer connection terminal 1846 is sleeved on the insulating ring 1844, the cavity wall of the second installation cavity 18204 is sleeved on the outer layer connection terminal 1846, and the insulating ring 1844 separates the outer layer connection terminal 1846 from the inner layer connection terminal 1842.

[0078] The feed line inner conductor 52 is connected to the inner connection terminal 1842 , and the feed line outer conductor 56 is connected to the outer connection terminal 1846 .

[0079] Through the above structure, the feeder insulating medium 54 separates the feeder inner conductor 52 and the feeder outer conductor 56, so that the feeder inner conductor 52 and the feeder outer conductor 56 are not electrically connected to each other; and the insulating ring 1844 separates the inner connection terminal 1842 and the outer connection terminal 1846, so that the inner connection terminal 1842 and the outer connection terminal 1846 are not electrically connected to each other; thus, the feeder inner conductor 52 and the inner connection terminal 1842 can be electrically connected more stably, and the feeder outer conductor 56 and the outer connection terminal 1846 can be electrically connected more stably.

[0080] Specifically, in this embodiment, the inner connection terminal 1842 is a hollow cylindrical structure, the insulating ring 1844 is located at one end of the inner connection terminal 1842 facing the guide structure 12, the inner surface of the outer connection terminal 1846 abuts against the outer surface of the insulating ring 1844, and the outer surface of the outer connection terminal 1846 abuts against the cavity wall of the second installation cavity 18204. The outer connection terminal 1846 and the feeder outer conductor 56, and the inner connection terminal 1842 and the feeder inner conductor 52 are both connected by welding.

[0081] In other embodiments, the inner layer connection terminal 1842 may also be other structures, such as a cylinder; the insulating ring 1844 may also be arranged at other positions of the inner layer connection terminal 1842, such as the middle.

[0082] Please refer to Figure 8 In some embodiments, the base member 18 further includes a fixing bracket 186, which is sleeved on the base body 182, and a limiting groove 18208 is provided on the outer surface of the base body 182 (see Figure 7 ), a limit block 1862 is provided on the fixed bracket 186, and the limit block 1862 abuts against the groove wall of the limit groove 18208, so that the base body 182 is fixed relative to the fixed bracket 186.

[0083] Through the above structure, the fixed bracket 186 can be connected to the communication device, and the limit block 1862 abuts against the groove wall of the limit groove 18208, so that the base body 182 cannot rotate relative to the fixed bracket 186, thereby improving the stability of the omnidirectional antenna 100 in this embodiment.

[0084] Specifically, in the present embodiment, one section of the fixed bracket 186 is cylindrical, and the other section is a waist-shaped block. The fixed bracket 186 is a hollow structure, so that the fixed bracket 186 can be mounted on the base body 182; the limit block 1862 protrudes toward the hollow part of the fixed bracket 186, and the limit block 1862 includes a rectangular abutting end face 1864, and the abutting end face 1864 abuts against the groove wall of the limiting groove 18208; the number of the limit block 1862 is one, and the number of the limiting grooves 18208 is four, and the limit block 1862 cooperates with one limiting groove 18208.

[0085] In other embodiments, the fixed bracket 186 may also be in other shapes, such as a rectangular parallelepiped; the abutting end face 1864 may also be in other shapes, such as a circle; the number of limit blocks 1862 may also be multiple, and the limit blocks 1862 correspond one-to-one to the limit grooves 18208; or the number of limit grooves 18208 and the number of limit blocks 1862 are both one.

[0086] In some embodiments, there are multiple limiting grooves 18208 , and all limiting grooves 18208 are evenly distributed around the central axis of the base body 182 .

[0087] Through the above structure, when the limiting block 1862 cooperates with any limiting groove 18208, the limiting block 1862 can limit the base body 182, thereby making it easier to assemble the fixed bracket 186 and the base body 182.

[0088] Please refer to Fig. 9 In some embodiments, the end cover 16 includes a main body 162, a first annular wall 164 and a second annular wall 166, the first annular wall 164 and the second annular wall 166 are coaxially arranged and are both connected to one end of the main body 162 facing the base component 18, and there is a gap between the outer surface of the first annular wall 164 and the inner surface of the second annular wall 166.

[0089] The first annular wall 164 is sleeved on the guide structure 12 , and one end of the guide structure 12 abuts against the main body 162 ; the second annular wall 166 is sleeved on the shell 14 , and one end of the shell 14 abuts against the main body 162 .

[0090] Through the above structure, the first annular wall 164 and the second annular wall 166 are both connected to the main body 162, so that the first annular wall 164 is fixed relative to the second annular wall 166; the first annular wall 164 is sleeved on the guide structure 12, so that one end of the guide structure 12 is fixed relative to the end cover 16, and the second annular wall 166 is sleeved on the outer shell 14, so that the same end of the outer shell 14 is fixed relative to the end cover 16, so that the outer shell 14 and the guide structure 12 are separated from each other and are not easy to shake, which further improves the stability of the omnidirectional antenna 100 in this embodiment.

[0091] Specifically, the first annular wall 164 and the second annular wall 166 are both coaxially arranged cylindrical structures with the same structure, the main body 162 is a circular sheet structure, and the outer diameter of the main body 162 is adapted to the outer diameter of the second annular wall 166 .

[0092] Another embodiment of the present invention provides a communication device, including any one of the above-mentioned omnidirectional antennas 100. In this embodiment, the wireless device may be an unmanned aerial vehicle or a ground station; in other embodiments, the wireless device may also be a communication device or other device capable of receiving or sending signals.

[0093] Since the omnidirectional antenna 100 in this embodiment can effectively radiate radio signals of two frequency bands at the same time, the communication device can also transmit and receive radio signals of two frequency bands at the same time.

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Under the idea of ​​the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Although the present invention is described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An omnidirectional antenna, characterized in that: include: A housing assembly, the housing assembly comprising a guide structure and a housing, the guide structure being installed in the housing; A first frequency band antenna, the first frequency band antenna is installed in the housing, the first frequency band antenna comprises a first radiation unit, and the first frequency band antenna is used to receive or transmit signals; A second frequency band antenna, the second frequency band antenna is installed in the housing, the second frequency band antenna includes a second radiation unit, the second frequency band antenna is used to receive or transmit signals, and the second frequency band antenna is coaxially arranged with the first frequency band antenna; a multiplexer, the multiplexer being installed in the housing, the multiplexer being located between the first frequency band antenna and the second frequency band antenna, the multiplexer comprising a common port and at least two antenna connection ports, the first frequency band antenna and the second frequency band antenna being connected to the multiplexer via the antenna connection ports; A main feeder line, one end of which is connected to the common port, and the main feeder line is passed through the guide structure.

2. The omnidirectional antenna according to claim 1, characterized in that: The first frequency band antenna includes a first radiation unit, a third radiation unit, a first power divider, a first radio frequency line and a third radio frequency line; The first radiation unit includes a first upper radiation arm and a first lower radiation arm, and the third radiation unit includes a third upper radiation arm and a third lower radiation arm; The first power divider is located between the first radiation unit and the third radiation unit, and the first power divider includes a first input end and two first output ends, the first input end is connected to one of the antenna connection ports; one of the first output ends is connected to the first upper radiation arm and the first lower radiation arm via the first radio frequency line, and the other first output end is connected to the third upper radiation arm and the third lower radiation arm via the third radio frequency line; The second frequency band antenna includes a second radiation unit, a fourth radiation unit, a second power divider, a second radio frequency line and a fourth radio frequency line; The second radiation unit includes a second upper radiation arm and a second lower radiation arm, and the fourth radiation unit includes a fourth upper radiation arm and a fourth lower radiation arm; The second power divider is located between the second radiation unit and the fourth radiation unit, and the second power divider includes a second input end and two second output ends, the second input end is connected to another antenna connection port; one second output end is connected to the second upper radiation arm and the second lower radiation arm via the second radio frequency line, and the other second output end is connected to the fourth upper radiation arm and the fourth lower radiation arm via the fourth radio frequency line.

3. The omnidirectional antenna according to claim 2, characterized in that: The first upper radiation arm comprises an upper cylindrical structure and an upper annular cover, and the first lower radiation arm comprises a lower cylindrical structure and a lower annular cover, the upper cylindrical structure and the lower cylindrical structure are coaxially arranged and have the same structure, the upper annular cover is connected to one end of the upper cylindrical structure away from the lower cylindrical structure, and the lower annular cover is connected to one end of the lower cylindrical structure away from the upper cylindrical structure; The first radio frequency line includes a first inner conductor, a first insulating medium, a first outer conductor and a first insulating sheath which are sequentially sleeved from the inside to the outside, the first insulating medium separates the first inner conductor from the first outer conductor, the first inner conductor is connected to one end of the lower cylindrical structure facing the upper cylindrical structure, and the first outer conductor is connected to one end of the upper cylindrical structure facing the lower cylindrical structure.

4. The omnidirectional antenna according to claim 3, characterized in that: The housing assembly further comprises an end cap and a base component, the guide structure is coaxially arranged with the housing, one end of the guide structure and one end of the housing are both connected to the end cap, and the other end of the guide structure and the other end of the housing are both connected to the base component; The first RF line, the second RF line, the third RF line and the fourth RF line are all inserted into the guide structure, and the first power divider, the second power divider and the multiplexer are all installed on the outer surface of the guide structure; the inner side of the upper annular cover is connected to the outer surface of the guide structure, and the outer side of the upper annular cover is connected to one end of the upper cylindrical structure away from the lower cylindrical structure; the inner side of the lower annular cover is connected to the outer surface of the guide structure, and the outer side of the lower annular cover is connected to one end of the lower cylindrical structure away from the upper cylindrical structure.

5. The omnidirectional antenna according to claim 4, characterized in that: The base component includes a base body and a joint, the base body is provided with a first installation cavity, a second installation cavity and a connecting cavity, the first installation cavity is connected with the second installation cavity via the connecting cavity; one end of the shell is connected to the base body and placed in the first installation cavity, the guide structure is installed in the connecting cavity, and the joint is installed in the second installation cavity.

6. The omnidirectional antenna according to claim 5, characterized in that: The main feeder includes a feeder inner conductor, a feeder insulating medium, a feeder outer conductor and a feeder insulating sheath which are sequentially sheathed from the inside to the outside, and the feeder insulating medium separates the feeder inner conductor from the feeder outer conductor; The connector comprises an inner connection terminal, an insulating ring and an outer connection terminal, the insulating ring is sleeved on the inner connection terminal, the outer connection terminal is sleeved on the insulating ring, the cavity wall of the second mounting cavity is sleeved on the outer connection terminal, and the insulating ring separates the outer connection terminal from the inner connection terminal; The inner conductor of the feeder is connected to the inner connection terminal, and the outer conductor of the feeder is connected to the outer connection terminal.

7. The omnidirectional antenna according to claim 5, characterized in that: The base component also includes a fixing bracket, which is sleeved on the base body. A limiting groove is provided on the outer surface of the base body. A limiting block is provided on the fixing bracket, and the limiting block abuts against the groove wall of the limiting groove, so that the base body is fixed relative to the fixing bracket.

8. The omnidirectional antenna according to claim 7, characterized in that: There are multiple limiting grooves, and all of the limiting grooves are evenly distributed around the central axis of the base body.

9. The omnidirectional antenna according to claim 4, characterized in that: The end cover comprises a main body, a first annular wall and a second annular wall, wherein the first annular wall and the second annular wall are coaxially arranged and both connected to one end of the main body facing the base component, and a gap is formed between the outer surface of the first annular wall and the inner surface of the second annular wall; The first annular wall is sleeved on the guide structure, and one end of the guide structure is in contact with the main body; the second annular wall is sleeved on the outer shell, and one end of the outer shell is in contact with the main body.

10. A communication device, characterized in that: An omnidirectional antenna comprising any one of claims 1 to 9.

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