Broadband omnidirectional shaped antenna

Abstract

The invention discloses a broadband omnidirectional shaped antenna, which relates to the technical field of antennas and comprises a cylindrical outer cover, a PCB (Printed Circuit Board), a plurality of groups of half-wave vibrators, a plurality of supporting assemblies and a connector, the PCB is arranged in the cylindrical outer cover; the plurality of groups of half-wave vibrators are clamped on the PCB at intervals of a first distance; the plurality of supporting assemblies are clamped on the PCB, and the outer edges of the supporting assemblies are attached to the cylindrical outer cover; the joint is connected with the opening of the cylindrical outer cover; the method has higher communication capacity, is low in cost, and can guarantee the communication quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of antennas, and particularly relates to a wideband omnidirectional shaped antenna. BACKGROUND

[0002] With the advent of the 5G era, the Internet of Things brings many conveniences to our daily life. The omnidirectional glass steel antenna is an important part of the deployment of the Internet of Things in China due to its omnidirectional coverage, high gain and strong environmental adaptability.

[0003] At present, the frequency range of the omnidirectional glass steel antenna on the market mainly works in 700-1000MHz (UHF frequency band), and adopts a metal oscillator to realize energy radiation. However, this scheme has problems such as limited bandwidth, insufficient capacity and high cost, and it is difficult to meet the deployment requirements of densely populated areas.

[0004] Therefore, it is urgent to develop an antenna with higher communication capacity, low cost and guaranteed communication quality. SUMMARY

[0005] The main purpose of the embodiment of the present application is to at least solve one of the technical problems existing in the prior art, and propose a wideband omnidirectional shaped antenna with higher communication capacity, low cost and guaranteed communication quality.

[0006] To achieve the above-mentioned purpose, the embodiment of the present application proposes a wideband omnidirectional shaped antenna, which comprises a cylindrical outer cover, a PCB board, a plurality of groups of half-wave oscillators, a plurality of support assemblies and a joint. The PCB board is arranged in the cylindrical outer cover. A plurality of groups of the half-wave oscillators are clamped on the PCB board at a first distance. A plurality of the support assemblies are clamped on the PCB board, and the outer edge of the support assembly is fitted with the cylindrical outer cover. The joint is connected with the opening of the cylindrical outer cover. The wideband omnidirectional shaped antenna provided by the embodiment of the present application has at least the following beneficial effects: first, by using a PCB board instead of a traditional metal oscillator, the antenna frequency band is widened and the communication capacity is improved, the antenna can work in the frequency range of 3300-3800 MHz, and the antenna volume is reduced, the antenna cost is lowered, and the antenna production efficiency is improved; second, a plurality of support assemblies are clamped on the PCB board, the outer edges of the support assemblies are fitted with the cylindrical cover, and under the support of the plurality of support assemblies, the PCB board and the plurality of groups of half-wave oscillators on the PCB board can be prevented from shaking in the cylindrical cover, the PCB board and the plurality of groups of half-wave oscillators on the PCB board can be prevented from being damaged, and the stability and service life of the antenna are improved.

[0007] In some embodiments, each group of half-wave oscillators includes a first oscillator arm and a second oscillator arm, the first oscillator arm and the second oscillator arm have the same size and structure, and the first oscillator arm and the second oscillator arm are clamped on the PCB board in parallel and symmetrically.

[0008] In some embodiments, a plurality of first loading sheets and a plurality of second loading sheets are further included, wherein every two first loading sheets are fitted on the front surface of the first oscillator arm in a left-right symmetric manner, and every two second loading sheets are fitted on the back surface of the first oscillator arm in a left-right symmetric manner.

[0009] In some embodiments, the first oscillator arm includes a first horizontal plate, a first vertical plate, and a second vertical plate, one end of the first vertical plate is connected to one end of the first horizontal plate, the other end of the first vertical plate is clamped on the PCB board, one end of the second vertical plate is connected to the other end of the first horizontal plate, and the other end of the second vertical plate is clamped on the PCB board.

[0010] In some embodiments, the first loading sheet includes a first panel and a first extension branch connected to the first panel, the first panel covers the front surface of the first vertical plate, and the first extension branch is fitted with the lower edge of the first horizontal plate; the second loading sheet includes a second panel and a second extension branch connected to the second panel, the second panel covers the back surface of the first vertical plate, and the second extension branch is fitted with the upper edge of the first horizontal plate.

[0011] In some embodiments, each support assembly includes two half-circle clamping pieces, and the two half-circle clamping pieces are clamped on the PCB board to form a circular support assembly.

[0012] In some embodiments, a clamping groove is arranged on the semicircular clamping piece, a plurality of cables are arranged on the front surface of the PCB, the clamping groove is used for clamping the PCB and for the cables to pass through, and the cables are used for power supply.

[0013] In some embodiments, a connecting piece is further included, one end of the connecting piece is connected with the PCB, and the other end of the connecting piece is connected with the joint.

[0014] In some embodiments, a first microstrip line is arranged on each end of the back surface of the PCB, a slow wave structure is arranged on the first microstrip line, a plurality of second microstrip lines are further arranged on the back surface of the PCB, and the plurality of second microstrip lines are arranged between the two first microstrip lines.

[0015] In some embodiments, a power divider is further included, and the power divider is arranged on the middle part of the back surface of the PCB. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the technical scheme of the present application, and constitute a part of the specification, and are used to explain the technical scheme of the present application together with the embodiments of the present application, and do not constitute a limitation on the technical scheme of the present application.

[0017] The present application is further illustrated below in conjunction with the drawings and embodiments; Figure 1 is a schematic view of an internal structure of a broadband omnidirectional shaped antenna provided by the present application; Figure 2 is a schematic view of an overall structure of a broadband omnidirectional shaped antenna provided by the present application; Figure 3 is a schematic view of a back surface structure of a PCB in a broadband omnidirectional shaped antenna provided by the present application; Figure 4 is a schematic view of a structure of a first loading patch in a broadband omnidirectional shaped antenna provided by the present application; Figure 5 is a schematic view of a structure of a second loading patch in a broadband omnidirectional shaped antenna provided by the present application; Figure 6 is a schematic view of a structure of a first microstrip line in a broadband omnidirectional shaped antenna provided by the present application; Figure 7 is a schematic view of a structure of a second microstrip line in a broadband omnidirectional shaped antenna provided by the present application; Figure 8 is a schematic view of a structure of a support assembly in a broadband omnidirectional shaped antenna provided by the present application; Figure 9 is a schematic view of gain and vertical plane wave width of a broadband omnidirectional shaped antenna provided by the present application; Figure 10 is a schematic diagram of a standing wave ratio of a wideband omnidirectional shaped antenna provided by the present application; Figure 11 is a radiation pattern of a wideband omnidirectional shaped antenna without adding a loading sheet provided by the present application; Figure 12 is a radiation pattern of a wideband omnidirectional shaped antenna after adding a loading sheet provided by the present application. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not intended to limit the present application.

[0019] It should be noted that the terms "first", "second", etc. in the specification and claims and the above-described drawings are used to distinguish similar objects and do not necessarily describe a specific order or sequence.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used herein are only for the purpose of describing the embodiments of the present application and are not intended to limit the present application.

[0021] At present, the frequency range of the omnidirectional glass fiber reinforced plastic antenna on the market mainly works in 700-1000MHz (UHF frequency band), and adopts a metal oscillator to realize energy radiation. However, this scheme has problems of limited bandwidth, insufficient capacity and high cost, and is difficult to meet the deployment requirements in densely populated areas.

[0022] Based on this, the embodiments of the present application provide a wideband omnidirectional shaped antenna, which has higher communication capacity, low cost and can ensure communication quality.

[0023] The embodiments of the present application are further described below in combination with the drawings.

[0024] With reference to Figures 1-3 , the embodiments of the present application provide a wideband omnidirectional shaped antenna, which comprises a cylindrical cover 100, a PCB board 200, a plurality of groups of half-wave oscillators 300, a plurality of support assemblies 400 and a joint 500. The PCB board 200 is arranged in the cylindrical cover 100. The plurality of groups of half-wave oscillators 300 are clamped on the PCB board 200 at a first distance. The plurality of support assemblies 400 are clamped on the PCB board 200, and the outer edge of the support assembly 400 is fitted with the cylindrical cover 100. The joint 500 is connected with the opening of the cylindrical cover 100.

[0025] The wideband omnidirectional shaped antenna provided by the embodiment of the application firstly replaces the traditional metal vibrator with the PCB board 200, which widens the frequency band of the antenna and improves the communication capacity on the one hand, and reduces the volume of the antenna, lowers the cost of the antenna, and improves the production efficiency of the antenna on the other hand; secondly, the plurality of supporting components 400 are clamped on the PCB board 200, the outer edge of the supporting component 400 is attached to the cylindrical cover 100, and under the supporting action of the plurality of supporting components 400, the PCB board 200 and the plurality of groups of half-wave vibrators 300 located on the PCB board 200 can be prevented from shaking in the cylindrical cover 100, the PCB board 200 and the plurality of groups of half-wave vibrators 300 located on the PCB board 200 can be prevented from being damaged, and the stability and service life of the antenna are improved.

[0026] It can be understood that, by using the integrated PCB vibrator instead of the traditional metal vibrator, the antenna size can be made more compact and small due to the shorter wavelength of the antenna, which is beneficial to improve the space utilization; in addition, in the application scenario, the 3300MHZ-3800MHZ frequency band is commonly used for high-speed data transmission, wireless backhaul, part of 5G communication and the like, and these scenarios require a higher bandwidth to support the transmission of a large amount of data, and the frequency band has strong penetration ability and can better penetrate obstacles such as buildings and trees, and is suitable for urban hot spot areas, indoor coverage and the like, and can ensure the communication quality in densely populated areas.

[0027] Preferably, 6 groups of half-wave vibrators 300 and 4 supporting components 400 are arranged on the PCB board 200, the 6 groups of half-wave vibrators 300 are clamped on the PCB board 200 at a first distance, and one supporting component 400 is arranged every two groups of half-wave vibrators 300 or one supporting component 400 is arranged every group of half-wave vibrators 300.

[0028] Preferably, the first distance is 24.2mm, and the size of the first distance is not limited in the application.

[0029] It should be noted that the supporting component 400 is circular, the clamping area of the supporting component 400 is parallel to the wide edge of the PCB board 200, and the circular outer edge of the supporting component 400 is attached to the cylindrical cover 100.

[0030] Preferably, the cylindrical cover 100 is made of glass steel material, and the joint 500 is an N-Female joint.

[0031] In some embodiments, reference is made to Figure 1Each group of half-wave dipoles 300 includes a first dipole arm 310 and a second dipole arm 320, which are identical in size and structure, and are parallel and symmetrically clamped on the PCB board 200.

[0032] It should be noted that, with reference to Figure 3 A plurality of first slot bodies 210 are formed on the PCB board 200, and the PCB board 200 is a square board, and the first slot bodies 210 are parallel to the long side of the PCB board 200.

[0033] Further, the first dipole arm 310 and the second dipole arm 320 are first clamped into the first slot bodies 210 on the PCB board 200, and then the first dipole arm 310 and the second dipole arm 320 are welded with the PCB board 200 to fix the first dipole arm 310 and the second dipole arm 320.

[0034] In some embodiments, with reference to Figure 1 、 Figure 4 and Figure 5 Further, a plurality of first loading pieces 610 and a plurality of second loading pieces 620 are included, wherein every two first loading pieces 610 are symmetrically attached to the front of the first dipole arm 310, and every two second loading pieces 620 are symmetrically attached to the back of the first dipole arm 310.

[0035] It should be noted that for an omnidirectional antenna, the pattern circularity is an important indicator of the antenna, and since the plurality of groups of half-wave dipoles 300 are located on the PCB board 200, the pattern circularity is difficult to guarantee, and therefore, the first loading pieces 610 and the second loading pieces 620 are added to the dipole arms to optimize the pattern circularity indicator.

[0036] In some embodiments, with reference to Figure 1 、 Figure 4 The first dipole arm 310 includes a first horizontal plate, a first vertical plate and a second vertical plate, one end of the first vertical plate is connected to one end of the first horizontal plate, the other end of the first vertical plate is clamped on the PCB board 200, one end of the second vertical plate is connected to the other end of the first horizontal plate, and the other end of the second vertical plate is clamped on the PCB board 200.

[0037] It should be noted that the other end of the first vertical plate and the other end of the second vertical plate in the first dipole arm 310 are clamped into the first slot bodies 210 on the PCB board 200, and then the first vertical plate and the second vertical plate are welded with the PCB board 200 to fix the first dipole arm 310 and the second dipole arm 320; after the first vertical plate and the second vertical plate are inserted into the PCB board 200, the first horizontal plate is located on the front of the PCB board 200.

[0038] In some embodiments, reference Figure 4 、 Figure 5 The first loading piece 610 includes a first panel 611 and a first extending branch 612 connected to the first panel 611, the first panel 611 covers the front of the first vertical plate, and the first extending branch 612 is in contact with the lower edge of the first horizontal plate; the second loading piece 620 includes a second panel 621 and a second extending branch 622 connected to the second panel 621, the second panel 621 covers the back of the first vertical plate, and the second extending branch 622 is in contact with the upper edge of the first horizontal plate.

[0039] It should be noted that both the first loading plate 610 and the second loading plate 620 can optimize the circularity index of the directional pattern. The first panel 611 and the second panel 621 have the same size and structure, and the area of ​​the first extension branch 612 is smaller than the area of ​​the second extension branch 622. This can further reduce material costs while ensuring that the circularity index of the directional pattern is optimized.

[0040] It should be noted that, referring to Figure 5 When the two second loading pieces 620 are attached to the back surface of the first vibrator arm 310 in a bilaterally symmetrical manner, the second panels 621 of the two second loading pieces 620 and the second extending branches 622 form an inverted U-shaped structure.

[0041] It should be noted that the antenna scheme without adding a loading plate on the dipole arm is tested through simulation experiments. Figure 11 As shown, within the operating frequency range of 3300MHZ-3800MHZ, the voltage difference between the two peaks is between 1.02-1.50; and after welding the first loading piece 610 and the second loading piece 620 on the vibrator arm, through simulation experiments, as shown Figure 12 As shown, within the operating frequency range of 3300MHZ-3800MHZ, the voltage difference between the two peaks is between 0.34-0.39, and most of it is concentrated at 0.39, which is more stable.

[0042] In some embodiments, reference Figure 1 、 Figure 8 Each support assembly 400 includes two semicircular clips 410 , and the two semicircular clips 410 are respectively clipped onto the PCB board 200 to form a circular support assembly 400 .

[0043] Preferably, the semicircular clip 410 is made of epoxy resin plate material.

[0044] It should be noted that after the two half-circular clamping pieces 410 are clamped on the PCB 200 to form a circular support assembly 400, the abutting portions between the two half-circular clamping pieces 410 and the abutting portions between the two half-circular clamping pieces 410 and the PCB 200 are fixed together by welding.

[0045] In some embodiments, referring to Figure 8 A clamping groove 411 is arranged on the half-circular clamping piece 410, a plurality of cables 700 are arranged on the front surface of the PCB 200, the clamping groove 411 is used for clamping the PCB 200 and passing the cables 700, and the cables 700 are used for power supply.

[0046] It should be noted that the clamping groove 411 includes a narrow groove and a wide groove. The narrow groove is abutted with the edge of the PCB 200, and the half-circular clamping piece 410 does not need to be fixed by slotting the PCB 200, thereby reducing the production process and reducing the production cost. The wide groove reserves sufficient space for the cables 700 to pass through, and a relatively short linear cable 700 can be directly selected for power supply, without the need to design the cable 700 to be curved to bypass the clamping groove 411, thereby reducing the cost and improving the space utilization. In some embodiments, referring to Figure 3 The connecting piece 800 is further arranged, one end of the connecting piece 800 is connected with the PCB 200, and the other end of the connecting piece 800 is connected with the connector 500.

[0047] It should be noted that one end of the connecting piece 800 is provided with two through holes, and two nylon rivets are used to pass through the through holes to fix the connecting piece 800 and the PCB 200.

[0048] Preferably, the connecting piece 800 is made of plastic material.

[0049] In some embodiments, referring to Figure 3 、 Figure 6 A first microstrip line 910 is arranged at each end of the back surface of the PCB 200, a slow wave structure 911 is arranged on the first microstrip line 910, a plurality of second microstrip lines 920 are further arranged on the back surface of the PCB 200, and the plurality of second microstrip lines 920 are arranged between the two first microstrip lines 910.

[0050] Preferably, two second microstrip lines 920 are arranged on the back surface of the PCB 200, and are arranged in the order of the first microstrip line 910, the second microstrip line 920, the second microstrip line 920, and the first microstrip line 910. The two first microstrip lines 910 are arranged below the two groups of half-wave dipoles 300 at the head and tail of the PCB 200, respectively, and the two second microstrip lines 920 are arranged below the remaining four groups of half-wave dipoles 300, respectively.

[0051] It should be noted that, referring to Figure 6 , the first microstrip line 910 further includes a bifurcation 912, a first line segment 913, and a first cable feed port 914, the bifurcation 912 is connected to one end of the slow wave structure 911, the other end of the slow wave structure 911 is connected to one end of the first line segment 913, the other end of the first line segment 913 is connected to the first cable feed port 914, and the two ends of the bifurcation 912 are respectively provided with a feed point, and the first cable feed port 914 is provided with two feed points; the two ends of the bifurcation 912 of the two first microstrip lines 910 respectively extend to below the first and second dipole arms 310 and 320 of the two groups of half-wave dipoles 300 located at the head and tail of the PCB board 200, as shown in Figure 3 , to realize the feed connection between the first microstrip line 910 and the two groups of half-wave dipoles 300 located at the head and tail of the PCB board 200. It should be noted that, referring to Figure 7 , the second microstrip line 920 includes two bifurcations 912, two second line segments 921, and a second cable feed port 922, the two second line segments 921 are arranged between the two bifurcations 912, the second cable feed port 922 is arranged between the two second line segments 921, and the two ends of the bifurcation 912 are respectively provided with a feed point, and the second cable feed port 922 is provided with one feed point; the two ends of the four bifurcations 912 of the two second microstrip lines 920 respectively extend to below the first and second dipole arms 310 and 320 of the four groups of half-wave dipoles 300 located in the middle of the PCB board 200, to realize the feed connection between the second microstrip line 920 and the four groups of half-wave dipoles 300 located in the middle of the PCB board 200.

[0052] Further, a plurality of cables 700 are arranged on the front surface of the PCB board 200, and one feed point of the first cable feed port 914 in the first microstrip line 910 is connected to the feed point of the second cable feed port 922 of the second microstrip line 920 through the cable 700.

[0053] It should be noted that, since the half-wave dipoles 300 are vertically distributed, the phase and amplitude of each half-wave dipole 300 are inconsistent, and by arranging the first and second microstrip lines 910 and 920 with different lengths, the phase and amplitude of the antenna can be adjusted to achieve the optimal working state of the antenna; in addition, through simulation experiments, the standing wave ratio of the antenna in the working frequency range of 3300-3800 MHz is below 1.4, as shown in Figure 10 ; and the antenna gain reaches 9.7, as shown in Figure 9 .

[0054] In some embodiments, referring to Figure 3 , the power divider 1000 is arranged at the middle of the back surface of the PCB board 200.

[0055] Preferably, the power divider 1000 is a one-to-two power divider 1000.

[0056] In some embodiments, the first microstrip line 910 is arranged on the back of the PCB board 200, and the slow wave structure 911 is arranged on the first microstrip line 910. A plurality of second microstrip lines 920 are arranged on the back of the PCB board 200, and the power divider 1000 is arranged between the two second microstrip lines 920.

[0057] It should be noted that the other feeding point of the first cable feeding port 914 in the two first microstrip lines 910 is respectively connected with the two output ports of the one-to-two power divider 1000 through the cable 700, and then the joint 500 can realize the connection of the two groups of half-wave dipoles 300 at the head and tail of the PCB board 200 through the power divider 1000. However, when the antenna is excited, the two groups of half-wave dipoles 300 at the head and tail of the PCB board 200 will first receive the excitation signal, and each group of half-wave dipoles 300 cannot receive the excitation signal at the same time.

[0058] Further, by adding the slow wave structure 911 in the first microstrip line 910, the time for the two groups of half-wave dipoles 300 at the head and tail of the PCB board 200 to receive the excitation signal is delayed, so that each group of half-wave dipoles 300 can receive the excitation signal at the same time.

[0059] In some embodiments, referring to Figure 1, the cylindrical cover 100, the PCB board 200, the plurality of groups of half-wave dipoles 300, the plurality of support assemblies 400 and the joint 500; the PCB board 200 is arranged in the cylindrical cover 100; the plurality of groups of half-wave dipoles 300 are clamped on the PCB board 200 at a first distance; the plurality of support assemblies 400 are clamped on the PCB board 200, and the outer edges of the support assemblies 400 are in close contact with the cylindrical cover 100; the joint 500 is connected with the opening of the cylindrical cover 100; each group of half-wave dipoles 300 comprises a first dipole arm 310 and a second dipole arm 320, the first dipole arm 310 and the second dipole arm 320 are of the same size and structure, and the first dipole arm 310 and the second dipole arm 320 are clamped on the PCB board 200 in parallel and symmetrically; a clamping groove 411 is arranged on the half-circular clamping piece 410, a plurality of cables 700 are arranged on the front face of the PCB board 200, the clamping groove 411 is used for clamping the PCB board 200 and for the cables 700 to pass through, and the cables 700 are used for power feeding; a first microstrip line 910 is arranged at each end of the back face of the PCB board 200, a slow wave structure 911 is arranged on the first microstrip line 910, and a plurality of second microstrip lines 920 are further arranged on the back face of the PCB board 200, and the plurality of second microstrip lines 920 are arranged between the two first microstrip lines 910; the power divider 1000 is further arranged on the middle part of the back face of the PCB board 200.

[0060] It should be noted that, since the first dipole arms 310 of the plurality of groups of half-wave dipoles 300 form equidistant linear arrays longitudinally on the PCB board 200, and the second dipole arms 320 of the plurality of groups of half-wave dipoles 300 are arranged in parallel in a mirror-symmetrical manner with the first dipole arms 310, therefore, sufficient space can be reserved between the first dipole arms 310 and the second dipole arms 320 of each group of half-wave dipoles 300 in the PCB board 200, for the plurality of cables 700, the plurality of first microstrip lines 910, the plurality of second microstrip lines 920 and the power divider 1000 to be arranged, which is conducive to improving the space utilization of the PCB board 200 while ensuring the performance of the antenna.

[0061] Obviously, the above-described embodiments are only some embodiments of the present application, rather than all the embodiments, and the preferred embodiments of the present application are shown in the drawings, but do not limit the protection scope of the present application. The present application can be implemented in many different forms, and conversely, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing specific embodiments, or make equivalent replacements to some technical features. Any equivalent structure made by using the contents of the specification and drawings, directly or indirectly used in other related technical fields, is also within the protection scope of the present application.

Claims

1. A broadband omnidirectional shaped antenna, characterized in that: include: Cylindrical outer cover; A PCB board, wherein the PCB board is arranged in the cylindrical outer cover; A plurality of groups of half-wave oscillators are clamped on the PCB board at a first distance; A plurality of support components, wherein the plurality of support components are clamped on the PCB board, and the outer edges of the support components are in contact with the cylindrical outer cover; A joint is connected to the opening of the cylindrical outer cover.

2. The broadband omnidirectional shaped antenna according to claim 1, characterized in that: Each group of the half-wave dipoles includes a first dipole arm and a second dipole arm. The first dipole arm and the second dipole arm have the same size and structure. The first dipole arm and the second dipole arm are parallel and symmetrically clamped on the PCB board.

3. The broadband omnidirectional shaped antenna according to claim 2, characterized in that: It also includes multiple first loading plates and multiple second loading plates, wherein every two of the first loading plates are attached to the front surface of the first vibrator arm in a left-right symmetrical manner, and every two of the second loading plates are attached to the back surface of the first vibrator arm in a left-right symmetrical manner.

4. The broadband omnidirectional shaped antenna according to claim 3, characterized in that: The first vibrator arm includes a first horizontal plate, a first vertical plate and a second vertical plate, one end of the first vertical plate is connected to one end of the first horizontal plate, and the other end of the first vertical plate is clamped on the PCB board, one end of the second vertical plate is connected to the other end of the first horizontal plate, and the other end of the second vertical plate is clamped on the PCB board.

5. The broadband omnidirectional shaped antenna according to claim 4, characterized in that: The first loading piece includes a first panel and a first extending branch connected to the first panel, the first panel covers the front of the first vertical plate, and the first extending branch is in contact with the lower edge of the first horizontal plate; the second loading piece includes a second panel and a second extending branch connected to the second panel, the second panel covers the back of the first vertical plate, and the second extending branch is in contact with the upper edge of the first horizontal plate.

6. The broadband omnidirectional shaped antenna according to claim 1, characterized in that: Each supporting assembly includes two semicircular clamping parts, and the two semicircular clamping parts are respectively clamped on the PCB board to form a circular supporting assembly.

7. The broadband omnidirectional shaped antenna according to claim 6, characterized in that: A clamping groove is provided on the semicircular clamping piece, and a plurality of cables are provided on the front of the PCB board. The clamping groove is used for clamping with the PCB board and for allowing the cables to pass through. The cables are used for power feeding.

8. The broadband omnidirectional shaped antenna according to claim 1, characterized in that: It also includes a connecting piece, one end of which is connected to the PCB board, and the other end of which is connected to the connector.

9. The broadband omnidirectional shaped antenna according to claim 1, characterized in that: A first microstrip line is provided at both ends of the back side of the PCB board, a slow-wave structure is provided on the first microstrip line, and a plurality of second microstrip lines are provided on the back side of the PCB board, the plurality of second microstrip lines are provided between two of the first microstrip lines.

10. The broadband omnidirectional shaped antenna according to claim 1, characterized in that: It also includes a power divider, which is arranged in the middle of the back side of the PCB board.

Images