A wideband indoor wall-mount antenna
Patent Information
- Application Number
- CN202522242300.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-23
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-10-23
AI Technical Summary
[0003]本实用新型的目的在于提供一种宽频带室内壁挂天线，以解决现有技术中存在的不足，进一步拓宽工作频带，以满足不同运营商5G网络室内分布系统对单极化壁挂天线的技术要求
[0012]对比现有技术，本实用新型的有益效果是：所述一种宽频带室内壁挂天线包括所述反射板、所述左内挡板、右内挡板、所述辐射振子、所述圆形寄生片a、圆形寄生片b、圆形寄生片c、所述寄生环、所述左寄生条及右寄生条，还包括所述馈电同轴电缆组件及外罩。其多个寄生元件对拓展工作频带起到了重要作用，各零部件的几何形状、尺寸构成本实用新型公开的一种宽频带室内壁挂天线的辐射结构，其各项辐射特性包括增益、H面波束宽度、前后比指标满足各运营商对2G、3G、4G及5G网络工作频带的要求。本实用新型公开的一种宽频带室内壁挂天线的相对频带宽度对比现有技术同类型天线提高20%左右。
Smart Images
Figure CN224804196U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mobile communication antenna technology, and in particular to a broadband indoor wall-mounted antenna. Background Technology
[0002] With the rapid development of modern communication technology, cellular mobile communication systems have undergone widespread application from 2G, 3G, and 4G networks to 5G. Indoor wall-mounted antennas are one of the important devices in the indoor distribution subsystem of cellular mobile networks, and their operating frequency band needs to be further broadened as cellular mobile networks upgrade. However, existing technologies, such as the single-polarized indoor wall-mounted antennas disclosed in patents CN2017100164787 and CN202422734927X, cannot cover the 5G networks of operators China Telecom and China Unicom. Therefore, existing technologies urgently need improvement and enhancement. Utility Model Content
[0003] The purpose of this invention is to provide a wideband indoor wall-mounted antenna to address the shortcomings of existing technologies and further broaden the operating frequency band to meet the technical requirements of different operators' 5G network indoor distribution systems for single-polarized wall-mounted antennas.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: A broadband indoor wall-mounted antenna includes a reflector, an upper baffle, a lower baffle, a left inner baffle, a right inner baffle, a radiating element, a circular parasitic piece a, a circular parasitic piece b, a circular parasitic piece c, a parasitic ring, a left parasitic strip, and a right parasitic strip. It also includes a feed coaxial cable assembly and an outer cover. The reflector and the outer cover close together to form a receiving cavity for the wall-mounted antenna.
[0005] Furthermore, the radiating element of the broadband indoor wall-mounted antenna is a three-arm structure comprising a grounding arm, a feed arm, and a coupling arm. Each of the grounding arm, feed arm, and coupling arm is a sheet-like inverted L-shape, including a planar portion and a vertical portion. The planar and vertical portions of the grounding arm, feed arm, and coupling arm are perpendicularly connected to each other. The radiating element is disposed on the inner surface of the reflector along its centerline. The distance from the planar portions of the grounding arm, feed arm, and coupling arm to the reflector is 0.05-0.3 times the low sideband operating wavelength of the wall-mounted antenna. The connection between the vertical portions of the grounding arm and the coupling arm and the reflector includes conductive and non-conductive connections. The vertical portion of the grounding arm is conductively connected to the outer conductor of the feed coaxial cable assembly, and the vertical portion of the feed arm is conductively connected to the inner conductor of the feed coaxial cable assembly. The feed arm and the coupling arm are insulated from each other.
[0006] Furthermore, the reflector of the broadband indoor wall-mounted antenna is a rectangular flat plate, the length of which is 0.2-1.0 times the low sideband operating wavelength of the wall-mounted antenna. The upper baffle and the lower baffle are respectively disposed at the two short edges of the reflector facing the receiving cavity. The upper and lower baffles are connected to the reflector and are perpendicular or nearly perpendicular. The height of the upper and lower baffles is 0.01-0.4 times the low sideband operating wavelength of the wall-mounted antenna.
[0007] Furthermore, the inner surface of the reflector is provided with a left inner baffle and a right inner baffle. The left and right inner baffles are parallel to the long side of the reflector and are symmetrically installed relative to the center line of the reflector. The length of the left and right inner baffles is 0.1-0.8 times the low sideband operating wavelength of the wall-mounted antenna. The connection between the left and right inner baffles and the reflector includes conductive connection and non-conductive connection. The outer side of the reflector is provided with a mounting lug. The coaxial cable assembly passes through the outer cover and the lower baffle and enters the receiving cavity of the wall-mounted antenna.
[0008] Furthermore, the receiving cavity of the broadband indoor wall-mounted antenna includes multiple parasitic elements, wherein the circular parasitic plates a, b, and c are arranged sequentially in front of the radiating element along the center line of the reflector. The diameter of the circular parasitic plates a, b, and c is 0.1-0.8 times the high sideband operating wavelength of the wall-mounted antenna, and the distance from the circular parasitic plates a, b, and c to the reflector is 0.07-0.35 times the low sideband operating wavelength of the wall-mounted antenna.
[0009] Furthermore, the parasitic element within the cavity of the broadband indoor wall-mounted antenna also includes the parasitic ring, which is located in front of the radiating element and has six protrusions. The four outer protrusions are symmetrically distributed from left to right relative to the center line of the reflector, and the two inner protrusions are distributed vertically. The distance from the parasitic ring to the reflector is 0.1-0.4 times the low sideband operating wavelength of the wall-mounted antenna.
[0010] Furthermore, the parasitic element within the cavity of the broadband indoor wall-mounted antenna also includes the left parasitic strip and the right parasitic strip. The left and right parasitic strips are located in front of the radiating element and are symmetrically distributed on the left and right sides relative to the center line of the reflector. The length of the left and right parasitic strips is 0.15-0.8 times the low sideband operating wavelength of the wall-mounted antenna, and the distance from the left and right parasitic strips to the reflector is 0.1-0.5 times the low sideband operating wavelength of the wall-mounted antenna.
[0011] Furthermore, the main components of the broadband indoor wall-mounted antenna include the reflector, the hanging lug, the left inner baffle, the right inner baffle, the radiating dipole grounding arm, the feed arm and the coupling arm, the circular parasitic plates a, b and c, the parasitic ring and the left parasitic strip and the right parasitic strip, all of which are made of metal, and the outer cover is made of a non-metallic material with low dielectric loss.
[0012] Compared with existing technologies, the beneficial effects of this utility model are as follows: The broadband indoor wall-mounted antenna includes a reflector, a left inner baffle, a right inner baffle, a radiating element, circular parasitic plates a, b, and c, a parasitic ring, a left parasitic strip, and a right parasitic strip, as well as a coaxial cable assembly and an outer casing. Its multiple parasitic elements play a crucial role in extending the operating frequency band. The geometry and dimensions of each component constitute the radiation structure of the broadband indoor wall-mounted antenna disclosed in this utility model. Its radiation characteristics, including gain, H-plane beamwidth, and front-to-back ratio, meet the requirements of various operators for the operating frequency bands of 2G, 3G, 4G, and 5G networks. The relative bandwidth of the broadband indoor wall-mounted antenna disclosed in this utility model is approximately 20% higher than that of similar antennas in existing technologies. Attached Figure Description
[0013] The above and / or additional aspects and advantages of this invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a front view of the internal structure of the broadband wall-mounted antenna provided by this utility model; Figure 2 3D diagram of the internal structure of the broadband wall-mounted antenna provided by this utility model; Figure 3 Exploded view of the broadband wall-mounted antenna provided by this utility model; Figure 4 3D diagram of the radiating element of the broadband wall-mounted antenna provided for this utility model; Figure 5 The low-sideband H-plane amplitude pattern of the broadband wall-mounted antenna provided by this utility model; Figure 6 The broadband wall-mounted antenna provided by this utility model has a center frequency H-plane amplitude pattern. Figure 7 The high-sideband H-plane amplitude pattern of the broadband wall-mounted antenna provided by this utility model.
[0014] Figure label: AS, center line of the reflector; 101. Grounding arm; 111. Planar part of grounding arm; 121. Vertical part of grounding arm; 102. Feeder arm; 112. Planar part of feeder arm; 122. Vertical part of feeder arm; 103. Coupler arm; 113. Planar part of coupler arm; 123. Vertical part of coupler arm; 201. Parasitic ring; 202. Outer protrusion; 203. Inner protrusion; 211. Left parasitic branch; 212. Right parasitic branch; 221. Circular parasitic patch a; 222. Circular parasitic patch b; 223. Circular parasitic patch c; 301. Reflector; 302. Upper baffle; 303. Lower baffle; 304. Hanging lug; 311. Left inner baffle; 312. Right inner baffle; 401. Power supply coaxial cable assembly; 501. Outer cover. Detailed Implementation
[0015] This utility model discloses a broadband indoor wall-mounted antenna. To make the purpose, technical solution and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments.
[0016] In this specification, it should be understood that the terms "upper," "lower," "left," "right," "inner," "outer," "front," "center," and "vertical," etc., which express directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They should not be construed as limiting this utility model. In addition, the terms "installation," "connection," etc., should be interpreted broadly. Those skilled in the art can understand the specific meaning of the above terms in this specification according to the specific circumstances.
[0017] like Figure 1-4 As shown, a broadband indoor wall-mounted antenna according to an embodiment of this application includes a reflector 301, an upper baffle 302, a lower baffle 303, a left inner baffle 311, a right inner baffle 312, a grounding arm 101, a feeding arm 102, and a coupling arm 103 constituting a radiating element, and also includes circular parasitic plates a 221, b 222, c 223, a parasitic ring 201, a left parasitic strip 211 and a right parasitic strip 212, a feeding coaxial cable assembly 401, and an outer cover 501. The reflector 301 and the outer cover 501 close together to form the receiving cavity of the wall-mounted antenna according to the embodiment of this application.
[0018] Furthermore, the radiating vibrator of this embodiment is a three-arm structure including a grounding arm 101, a feeding arm 102, and a coupling arm 103. The grounding arm 101, the feeding arm 102, and the coupling arm 103 are all in the shape of a sheet-like inverted L, including their respective planar portions 111, 112, and 113 and their respective vertical portions 121, 122, and 123. The planar portions and vertical portions are perpendicularly connected to each other. The grounding arm 101, the feeding arm 102, and the coupling arm 103 are disposed on the inner surface of the reflector 301 along the center line AS of the reflector 301. The vertical portion 121 of the grounding arm 101 and the vertical portion 123 of the coupling arm 103 are electrically connected to the reflector 301. The vertical portion 121 of the grounding arm 101 is electrically connected to the outer conductor of the feeding coaxial cable assembly 401. The vertical portion 122 of the feeding arm 102 is electrically connected to the inner conductor of the feeding coaxial cable assembly 401. The feeding arm 102 and the coupling arm 103 are insulated from each other.
[0019] Furthermore, in this embodiment, the reflector 301 is a rectangular plate with the lengths of its long and short sides being 0.6 and 0.5 times the low sideband operating wavelength of the wall-mounted antenna, respectively. The upper baffle 302 and the lower baffle 303 are respectively disposed at the two short edges of the reflector 301 facing the cavity, and are connected to the reflector 301 and are in a nearly perpendicular state.
[0020] Furthermore, the inner surface of the reflector 301 is provided with a left inner baffle 311 and a right inner baffle 312. The left inner baffle 311 and the right inner baffle 312 are parallel to the long side of the reflector 301 and are symmetrically installed relative to the center line AS of the reflector 301. The connection between the left inner baffle 311 and the right inner baffle 312 and the reflector 301 is a non-conductive connection. The outer side of the reflector 301 is provided with a hanging ear 304. The coaxial cable assembly 401 passes through the outer cover 501 and the lower baffle 303 and enters the receiving cavity of the wall-mounted antenna in this embodiment of the application.
[0021] Furthermore, the receiving cavity in this embodiment is also provided with a plurality of parasitic elements, wherein circular parasitic plates a 221, b 222, and c 223 are arranged sequentially along the center line AS of the reflector 301 in front of the radiating oscillator in this embodiment. The distances from 223 to reflector 301 are 0.16, 0.17, and 0.18 times the low sideband operating wavelength of the wall-mounted antenna, respectively. In this embodiment, a parasitic ring 201 is also provided in front of the radiating element. The parasitic ring 201 has six protrusions 202 and 203, of which four outer protrusions 202 are symmetrically distributed from left to right relative to the center line AS of reflector 301, and two inner protrusions 203 are distributed vertically. The distance from the parasitic ring 201 to reflector 301 is 0.17 times the low sideband operating wavelength of the wall-mounted antenna. In this embodiment, a left parasitic strip 211 and a right parasitic strip 212 are also provided in front of the radiating element, and are symmetrically distributed from left to right relative to the center line AS of reflector 301. The distance from the left parasitic strip 211 and the right parasitic strip 212 to reflector 301 is 0.18 times the low sideband operating wavelength of the wall-mounted antenna.
[0022] Furthermore, the main components of a broadband indoor wall-mounted antenna according to an embodiment of this application include a reflector 301, a hanging lug 304, a left inner baffle 311, a right inner baffle 312, a grounding arm 101, a feeding arm 102, a coupling arm 103, circular parasitic plates a 221, b 222, c 223, a parasitic ring 201, and the left and right parasitic strips 211 and 212, all made of aluminum alloy, and an outer cover 501 made of ABS plastic.
[0023] like Figure 5-7 As shown in the figure, a broadband indoor wall-mounted antenna according to an embodiment of this application achieves good radiation characteristics in the operating frequency bands of 2G, 3G, 4G and 5G networks, and its relative bandwidth is significantly wider than that of similar antennas in the prior art.
[0024] The above description of the specific embodiments of this application is only to help understand the concept of the technical solution of this utility model, and should not be used to limit the scope of implementation of this utility model. That is, all simple equivalent changes and modifications made in accordance with the scope of the patent application and the contents of the utility model specification shall still fall within the scope of this utility model patent.
Claims
1. A broadband indoor wall-mounted antenna, comprising a reflector, an upper baffle, a lower baffle, a left inner baffle, a right inner baffle, a radiating element, a circular parasitic patch a, a circular parasitic patch b, a circular parasitic patch c, a parasitic ring, a left parasitic strip, and a right parasitic strip, and further comprising a feed coaxial cable assembly and an outer casing, characterized in that: The reflector and the outer cover close together to form the receiving cavity of the wall-mounted antenna. Inside the receiving cavity, the left inner baffle, the right inner baffle, the left parasitic strip, and the right parasitic strip are symmetrically arranged with respect to the center line of the reflector. The radiating element, the circular parasitic plate a, the circular parasitic plate b, the circular parasitic plate c, and the parasitic ring are all arranged along the center line of the reflector. The outer side of the reflector is provided with a hanging lug.
2. The broadband indoor wall-mounted antenna according to claim 1, characterized in that: The reflector is a rectangular plate, the lengths of its long and short sides being 0.2-1.0 times the low sideband operating wavelength of the wall-mounted antenna. The upper and lower baffles are respectively disposed at the two short edges of the reflector facing the receiving cavity, and the heights of the upper and lower baffles are 0.01-0.4 times the low sideband operating wavelength of the wall-mounted antenna. The feed coaxial cable assembly passes through the outer cover and the lower baffle and enters the receiving cavity of the wall-mounted antenna.
3. A broadband indoor wall-mounted antenna according to claim 1, characterized in that: The left inner baffle and the right inner baffle are disposed on the surface of the reflector facing the cavity and parallel to the long side of the reflector. The length of the left and right inner baffles is 0.1-0.8 times the low sideband operating wavelength of the wall-mounted antenna. The connection between the left and right inner baffles and the reflector includes conductive connection and non-conductive connection.
4. A broadband indoor wall-mounted antenna according to claim 1, characterized in that: The radiating element has a three-arm structure, including a grounding arm, a feeding arm, and a coupling arm. The radiating element is disposed on the inner surface of the reflector along the center line of the reflector. The grounding arm, feeding arm, and coupling arm are all sheet-like inverted L-shaped, each including a planar portion and a vertical portion. The vertical portion of the grounding arm is electrically connected to the outer conductor of the feeding coaxial cable assembly, and the vertical portion of the feeding arm is electrically connected to the inner conductor of the feeding coaxial cable assembly. The feeding arm and the coupling arm are insulated from each other. The distance from the planar portion of the grounding arm, feeding arm, and coupling arm to the reflector is 0.05-0.3 times the low sideband operating wavelength of the wall-mounted antenna. The connection between the vertical portion of the grounding arm and the vertical portion of the coupling arm and the reflector includes conductive and non-conductive connections.
5. A broadband indoor wall-mounted antenna according to claim 1, characterized in that: The circular parasitic plates a, b, and c are arranged sequentially in front of the radiating element along the center line of the reflector. The diameter of the circular parasitic plates a, b, and c is 0.1-0.8 times the high sideband operating wavelength of the wall-mounted antenna, and the distance from the circular parasitic plates a, b, and c to the reflector is 0.07-0.35 times the low sideband operating wavelength of the wall-mounted antenna.
6. A broadband indoor wall-mounted antenna according to claim 1, characterized in that: The parasitic ring is located in front of the radiating oscillator. The parasitic ring has six protrusions, of which four outer protrusions are symmetrically distributed from left to right relative to the center line of the reflector, and two inner protrusions are distributed vertically. The distance from the parasitic ring to the reflector is 0.1-0.4 times the low sideband operating wavelength of the wall-mounted antenna.
7. A broadband indoor wall-mounted antenna according to claim 1, characterized in that: The left and right parasitic bars are provided in front of the radiating oscillator. The left and right parasitic bars are symmetrically distributed with respect to the center line of the reflector. The length of the left and right parasitic bars is 0.15-0.8 times the low sideband operating wavelength of the wall-mounted antenna. The distance from the left and right parasitic bars to the reflector is 0.1-0.5 times the low sideband operating wavelength of the wall-mounted antenna.
8. A broadband indoor wall-mounted antenna according to claim 1, characterized in that: The reflector, the lugs and the left and right inner baffles, the radiating oscillator, the circular parasitic plates a, b and c, the parasitic ring and the left and right parasitic strips are all made of metal, and the outer cover is made of a non-metallic material with low dielectric loss.