Two-port broadband omnidirectional antenna

Abstract

The utility model relates to a two-port broadband omnidirectional antenna, which comprises a horizontal polarization PCB (Printed Circuit Board), a horizontal polarization vibration element, wherein the horizontal polarization vibration element is arranged on the horizontal polarization PCB; and the vertical polarization antenna radiator is connected with the middle part of the horizontal polarization PCB. The two-port broadband omnidirectional antenna adopts a common-ground design of a vertical polarized antenna and a horizontal polarized antenna, so that the height of the antenna is greatly reduced; six horizontal polarization vibration elements are adopted, the amplitude and phase consistency of the six vibration elements is ensured, and the out-of-roundness of horizontal polarization is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of antenna, especially a two-port broadband omnidirectional antenna. BACKGROUND

[0002] Due to the shielding effect of buildings on electromagnetic waves, the penetration loss of wireless signals is increased, affecting the reception of wireless signals and the quality of communication. Therefore, in daily life, we often encounter the problem of weak signal of communication equipment in closed or semi-closed buildings. In order to make up for the deficiency of indoor wireless communication, indoor omnidirectional ceiling antenna emerges as the times require.

[0003] At present, the working frequency range of omnidirectional ceiling antenna is closely related to the size of the antenna. In the low frequency band, the size of omnidirectional ceiling antenna is large. However, if the size of the antenna is too large, it will increase the difficulty of installation of the antenna, and affect the decoration design of the room. If the size of the antenna is too limited, the performance of the antenna will not meet the requirements. Therefore, how to balance the performance of omnidirectional ceiling antenna and the size of the antenna has become a problem that needs to be solved urgently. SUMMARY

[0004] The utility model provides a two-port broadband omnidirectional antenna, aims at at least solve one of the prior art problems.

[0005] The technical scheme of the utility model is a two-port broadband omnidirectional antenna, which comprises:

[0006] Horizontal polarization PCB board;

[0007] Horizontal polarization vibration element, the horizontal polarization vibration element is arranged on the horizontal polarization PCB board;

[0008] Vertical polarization antenna radiator, the vertical polarization antenna radiator is connected with the middle part of the horizontal polarization PCB board.

[0009] Further, the number of horizontal polarization vibration elements is 6, and each horizontal polarization vibration element is circumferentially equidistantly arranged at the edge of the horizontal polarization PCB board.

[0010] Further, it further comprises horizontal polarization feed network, and the horizontal polarization feed network is connected with the horizontal polarization vibration element.

[0011] Further, the horizontal polarization PCB board is further provided with a common ground, and the horizontal polarization vibration element and the vertical polarization antenna radiator are respectively connected with the common ground.

[0012] Further, the vertical polarization antenna radiator comprises a tapered portion and a cylindrical portion connected in sequence.

[0013] Further, the cylindrical portion is connected with the common ground through the vertical polarization antenna radiator ground wire.

[0014] Further, the number of the vertical polarization antenna radiator ground lines is three, and each vertical polarization antenna radiator ground line is circumferentially and equidistantly arranged outside the cylindrical part.

[0015] Further, the horizontal polarization PCB board is further provided with L-shaped ground sheets.

[0016] Further, the number of the L-shaped ground sheets is three, and each L-shaped ground sheet is circumferentially and equidistantly arranged inside the horizontal polarization PCB board.

[0017] Further, each L-shaped ground sheet is arranged at the middle part of the connection part between the adjacent two vertical polarization antenna radiator ground lines and the common ground.

[0018] The beneficial effects of the two-port broadband omnidirectional antenna include:

[0019] The two-port broadband omnidirectional antenna provided by the utility model adopts vertical polarization antenna and horizontal polarization antenna common ground design, greatly reduces the height of the antenna, adopts six horizontal polarization vibration elements, ensures the amplitude and phase consistency of the six vibration elements, and improves the horizontal polarization non-circularity.

[0020] In addition, the additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be known by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a three-dimensional schematic view of the two-port broadband omnidirectional antenna according to the utility model embodiment.

[0022] Figure 2 is a top view of the two-port broadband omnidirectional antenna according to the utility model embodiment.

[0023] Figure 3 is a side view of the two-port broadband omnidirectional antenna according to the utility model embodiment.

[0024] Figure 4 is a non-circularity schematic view of the two-port broadband omnidirectional antenna according to the utility model embodiment at horizontal polarization Theta=60°.

[0025] The above drawings contain the following reference signs, 100, horizontal polarization PCB board; 200, horizontal polarization vibration element; 210, horizontal polarization feed network; 300, vertical polarization antenna radiator; 310, tapered part; 320, cylindrical part; 330, vertical polarization antenna radiator ground line; 400, common ground; 500, L-shaped ground sheet. DETAILED DESCRIPTION

[0026] The concept, specific structure and generated technical effects of the utility model will be clearly and completely described below in combination with the embodiments and drawings, so as to fully understand the purpose, scheme and effect of the utility model. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0027] It should be noted that, unless otherwise specified, when a certain feature is referred to as being "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature. In addition, the up, down, left, right, top, bottom and other descriptions used in the utility model are only relative to the mutual position relationship of the components of the utility model in the drawings.

[0028] In addition, 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. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the utility model. The term "and / or" used herein includes any combination of one or more related listed items.

[0029] It should be understood that although the terms first, second, third, etc. can be used in the present disclosure to describe various elements, these elements should not be limited to these terms. These terms are only used to distinguish elements of the same type from each other. For example, without departing from the scope of the present disclosure, the first element can also be referred to as the second element, and similarly, the second element can also be referred to as the first element.

[0030] Referring to Figures 1 to 4 In some embodiments, according to the two-port broadband omnidirectional antenna of the utility model, referring to Figures 1 to 3 , comprising:

[0031] A horizontal polarization PCB board 100;

[0032] A horizontal polarization vibration element 200, which is arranged on the horizontal polarization PCB board 100;

[0033] A vertical polarization antenna radiator 300, which is connected with the middle part of the horizontal polarization PCB board 100.

[0034] The utility model has the beneficial effects of:

[0035] The two-port broadband omnidirectional antenna provided by the utility model adopts the design of vertical polarization antenna and horizontal polarization antenna sharing the ground, which greatly reduces the height of the antenna; six horizontal polarization vibration elements 200 are adopted to ensure that the amplitudes and phases of the six vibration elements are consistent, thereby improving the non-circularity of horizontal polarization.

[0036] Further, referring to Figures 1 to 3 , the number of the horizontal polarization vibration elements 200 is 6, and each horizontal polarization vibration element 200 is circumferentially equidistantly arranged at the edge of the horizontal polarization PCB board 100.

[0037] Further, referring to Figures 1 to 3 , the horizontal polarization feeding network 210 is further arranged on the horizontal polarization PCB board 100.

[0038] Further, referring to Figures 1 to 3 , the horizontal polarization PCB board 100 is further provided with a common ground 400, and the horizontal polarization vibration element 200 and the vertical polarization antenna radiator 300 are respectively connected with the common ground 400.

[0039] Further, referring to Figures 1 to 3 , the vertical polarization antenna radiator 300 comprises a tapered portion 310 and a cylindrical portion 320 connected in sequence.

[0040] Further, referring to Figures 1 to 3 , the cylindrical portion 320 is connected with the common ground 400 through the vertical polarization antenna radiator ground line 330.

[0041] Specifically, the vertical polarization antenna radiator ground line 330 can optimize the standing wave and gain of low frequency (820-960MHz).

[0042] Further, referring to Figures 1 to 3 , the number of the vertical polarization antenna radiator ground lines 330 is 3, and each vertical polarization antenna radiator ground line 330 is circumferentially equidistantly arranged at the outside of the cylindrical portion 320.

[0043] Further, referring to Figures 1 to 3 , the horizontal polarization PCB board 100 is further provided with an L-shaped ground sheet 500.

[0044] Further, referring to Figures 1 to 3 , the number of the L-shaped ground sheets 500 is 3, and each L-shaped ground sheet 500 is circumferentially equidistantly arranged at the inside of the horizontal polarization PCB board 100.

[0045] Further, referring to Figures 1 to 3 , each L-shaped ground sheet 500 is arranged at the middle part of the connection part between the adjacent two vertical polarization antenna radiator ground lines 330 and the common ground 400.

[0046] Specifically, the L-shaped ground sheet 500 can improve the performance of the middle frequency (1700-2700MHz).

[0047] Referring to Figures 1 to 3 Figure 4From the frequency 2100MHz-2690MHz corresponding to the antenna non-circularity corresponding to Theta=60°, the non-circularity is half of the maximum gain minus the minimum gain, and the non-circularity can be controlled within 4dB in the whole frequency band.

[0048] The above is only a preferred embodiment of the present application, and the present application is not limited to the above-described embodiments, as long as the same means achieve the technical effects of the present application, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the disclosure should be included within the scope of the disclosure. All should belong to the protection scope of the present application. The technical solutions and / or embodiments within the protection scope of the present application can have various modifications and changes.

Claims

1. A two-port wideband omni antenna, characterized by, The two-port broadband omnidirectional antenna comprises: a horizontally polarized PCB board (100); horizontally polarized vibration elements (200) arranged on the horizontally polarized PCB board (100); vertically polarized antenna radiators (300) connected with the middle part of the horizontally polarized PCB board (100).

2. The two-port broadband omnidirectional antenna according to claim 1, wherein the number of the horizontally polarized vibration elements (200) is six, and each horizontally polarized vibration element (200) is arranged equidistantly in the circumferential direction at the edge of the horizontally polarized PCB board (100).

3. The two-port broadband omnidirectional antenna according to claim 1, wherein a horizontally polarized feed network (210) is further arranged, and the horizontally polarized feed network (210) is connected with the horizontally polarized vibration elements (200).

4. The two-port broadband omnidirectional antenna according to claim 1, wherein a common ground (400) is further arranged on the horizontally polarized PCB board (100), and the horizontally polarized vibration elements (200) and the vertically polarized antenna radiators (300) are respectively connected with the common ground (400).

5. The two-port broadband omnidirectional antenna according to claim 1, wherein the vertically polarized antenna radiator (300) comprises a tapered part (310) and a cylindrical part (320) connected in sequence.

6. The two-port broadband omnidirectional antenna according to claim 5, wherein the cylindrical part (320) is connected with the common ground (400) through a vertically polarized antenna radiator grounding line (330).

7. The two-port broadband omnidirectional antenna according to claim 6, wherein the number of the vertically polarized antenna radiator grounding lines (330) is three, and each vertically polarized antenna radiator grounding line (330) is arranged equidistantly in the circumferential direction at the outside of the cylindrical part (320).

8. The two-port broadband omnidirectional antenna according to claim 1, wherein an L-shaped grounding sheet (500) is further arranged on the horizontally polarized PCB board (100).

9. The two-port broadband omnidirectional antenna according to claim 8, wherein the number of the L-shaped grounding sheets (500) is three, and each L-shaped grounding sheet (500) is arranged equidistantly in the circumferential direction at the inside of the horizontally polarized PCB board (100).

10. The two-port broadband omnidirectional antenna according to claim 9, wherein each L-shaped grounding sheet (500) is arranged at the middle part of the connection part between the adjacent two vertically polarized antenna radiator grounding lines (330) and the common ground (400).

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