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A broadband antenna for LTE network coverage of 4G

A network coverage and broadband technology, applied in the field of broadband antennas, can solve problems such as cost increase and overall antenna volume increase, and achieve the effects of widening bandwidth, reducing structural parameters, and suppressing second harmonics

Active Publication Date: 2019-08-02
CHINA INFOMRAITON CONSULTING & DESIGNING INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional terminal antennas or small base stations can only solve single-band coverage, that is, work at 698~960MHz or 1710~2690MHz. To achieve wide-band or even full-band coverage, intelligently add antennas, which will lead to an increase in the overall size of the antenna. and cost increases

Method used

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  • A broadband antenna for LTE network coverage of 4G
  • A broadband antenna for LTE network coverage of 4G
  • A broadband antenna for LTE network coverage of 4G

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as figure 1 A wide-band antenna for 4G LTE network coverage shown in Embodiment 1 includes a dielectric substrate 1 made of a PCB, an antenna body arranged on the front of the dielectric substrate and an aluminum sheet covering the back of the dielectric substrate. reflective layer, and a 50Ω microstrip feeder 2 is arranged on the central axis of the dielectric substrate.

[0036] The antenna body is composed of several low-frequency radiation units 3 forming a low-frequency radiation array and several high-frequency radiation units 4 high-frequency radiation arrays. The two sets of arrays are arranged in parallel. are coupled to the microstrip feeder 2 respectively. The outer peripheries of the two arrays are respectively surrounded by a rectangular metal frame fixed on the dielectric substrate. A groove is arranged between the rectangular metal frame and the dielectric substrate. The groove forms a radiation gap 5, and the outer circle of the low-frequency radia...

Embodiment 2

[0040] Such as figure 2 , Embodiment 2 provides a broadband antenna for 4G LTE network coverage, including a dielectric substrate 1 made of a PCB, an antenna body arranged on the front of the dielectric substrate, and a reflector made of an aluminum sheet covering the back of the dielectric substrate. layer, a 50Ω microstrip feeder 2 is arranged on the central axis of the dielectric substrate.

[0041] The antenna body is composed of several low-frequency radiation units 3 forming a low-frequency radiation array and several high-frequency radiation units 4 and a high-frequency radiation array. The microstrip feeders 2 are left-right symmetrical, and are respectively coupled to the microstrip feeders 2 . The outer peripheries of the two arrays are respectively surrounded by a rectangular metal frame fixed on the dielectric substrate. A groove is arranged between the rectangular metal frame and the dielectric substrate. The groove forms a radiation gap 5, and the outer circle ...

Embodiment 3

[0045] This embodiment provides a method for manufacturing a broadband antenna for 4G LTE network coverage, the specific steps are:

[0046] (1) Take a rectangular PCB to make a dielectric substrate, and cover the back of the dielectric substrate with an aluminum sheet as a reflective layer. The size of the aluminum sheet is consistent with the size of the PCB board;

[0047] (2) Lay a microstrip feeder on the front of the PCB board. The microstrip feeder is made of metal sheet. The back of the microstrip feeder is attached with a thin metal layer as a grounding plate. strip;

[0048] (3) A rectangular metal frame is inlaid on the PCB boards on both sides of the microstrip feeder, respectively, the first metal frame 6a and the second metal frame 6b, and the upper side of the two metal frames passes close to the microstrip feeder One side extends all the way to the lower side of the corresponding metal frame and engraves a groove respectively. The groove forms a radiation gap ...

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Abstract

The invention provides a 4G-used LTE network-covered broadband antenna, which comprises a dielectric substrate. The front face of the dielectric substrate is provided with an antenna body, and the back face is provided with a radiation layer; the antenna body comprises a group of low-frequency radiation units and a group of high-frequency radiation units, and the low-frequency radiation units and the high-frequency radiation units are all coupled with the radiation layer; each low-frequency radiation unit comprises a first low-frequency oscillator and a second low-frequency oscillator vertical mutually, and the length of the first low-frequency oscillator is larger than that of the second low-frequency oscillator; each high-frequency radiation unit comprises a first high-frequency oscillator and a second high-frequency oscillator vertical mutually, and the first high-frequency oscillator and the second high-frequency oscillator have the same length; the middle part of the dielectric substrate is provided with a filter device, the filter device comprises an LC filter, the low-frequency radiation units and the group of high-frequency radiation units are coupled with the LC filter respectively, and the LC filter is coupled with the radiation layer.

Description

technical field [0001] The invention relates to the field of communication antennas, in particular to a broadband antenna for 4G LTE network coverage. Background technique [0002] The fourth-generation mobile phone mobile communication standard refers to the fourth-generation mobile communication technology, foreign language abbreviation: 4G. The technology includes TD-LTE and FDD-LTE two standards. 4G is a combination of 3G and WLAN, and can quickly transmit data, high quality, audio, video and images. 4G can be downloaded at a speed of more than 100Mbps, 25 times faster than the current home broadband ADSL (4M), and can meet almost all users' requirements for wireless services. In addition, 4G can be deployed where DSL and cable modems do not have coverage, and then spread throughout the region. Obviously, 4G has incomparable advantages. [0003] LTE key technologies include OFMD, MIMO, software radio, IP-based core network and smart antenna technology. Smart antennas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/36H01Q1/38H01Q1/50H01Q21/08H01Q5/10H01Q5/20
CPCH01Q1/36H01Q1/38H01Q1/50H01Q5/10H01Q5/20H01Q21/08
Inventor 叶春姚岳季智红王太峰杨红伟
Owner CHINA INFOMRAITON CONSULTING & DESIGNING INST CO LTD
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