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Dual-frequency wide-band antenna for ubiquitous wireless communication nodes

A wireless communication node and broadband antenna technology, applied in the microwave field, can solve problems such as limited bandwidth, inability to cover frequency bands, and complex structure of directional antennas, and achieve the effects of small size, simple manufacturing process, and low manufacturing cost

Active Publication Date: 2014-04-30
ZHONGTIAN BROADBAND TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the directional antenna in the existing directional transmission coverage system has a complex structure, high cost, and limited bandwidth, and cannot cover the frequency bands of various standard wireless communication systems; Impedance matching characteristics, stable radiation directivity, relatively flat gain characteristics and polarization characteristics, and hope that the antenna is small enough, low in cost, easy to process and install

Method used

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  • Dual-frequency wide-band antenna for ubiquitous wireless communication nodes
  • Dual-frequency wide-band antenna for ubiquitous wireless communication nodes
  • Dual-frequency wide-band antenna for ubiquitous wireless communication nodes

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Embodiment Construction

[0024] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0025] like Figure 1(a)~Figure 1(c) As shown, the structure of a dual-band broadband antenna proposed by the present invention for ubiquitous wireless communication nodes is: the bottom reflector 1 is a symmetrical octagon, which is conducive to widening the bandwidth, and its two sides parallel to the y-axis The length is 40mm, the length of the two sides parallel to the x-axis is 21.21mm, and the length of the other four sides is 30mm, which is symmetrical about the x-axis and the y-axis, and its center is 10mm away from the origin; the antenna is made on the dielectric substrate 3, and the dielectric substrate 3 is on the yz plane Above, the height of the side reflectors 21, 22 and 23 is 26 mm, and the whole is symmetrical about the yz plane, and the angle between 21 and 22, 23 and 22 is 45°. By designing the vertical reflectors into a folded s...

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Abstract

The invention discloses a dual-frequency wide-band antenna for ubiquitous wireless communication nodes. A polygonal radiation patch is etched on a dielectric substrate, non-full-closed folding metal baffle boards are led in, the non-full-closed folding metal baffle boards have a certain height, and are connected with a grounded base plate, and thus the dual-frequency wide-band antenna for the ubiquitous wireless communication nodes can have the directional radiation characteristic. Performance of the dual-frequency wide-band antenna can be influenced by the height and the width of an oscillator, the inner diameter and the outer diameter of a fan-shaped ring, the chamfer of the oscillator, the height and the width of the non-full-closed folding metal baffle boards, the included angle between the non-full-closed folding metal baffle boards, and the shape of the base plate, and the broadband beam antenna with good performance can be obtained by changing the structural parameters.

Description

technical field [0001] The invention relates to a dual-frequency broadband antenna for ubiquitous wireless communication nodes, belonging to the field of microwave technology. Background technique [0002] In recent years, with the continuous development of ubiquitous communication networks, broadband communication technology has attracted much attention. One of the basic nodes of the ubiquitous communication network is the wireless communication node, and the directional broadband antenna is one of the key nodes to realize communication transmission. It is generally believed that an antenna with a relatively wide bandwidth belongs to a broadband antenna, and within its operating frequency band, the characteristics of the antenna such as input impedance, efficiency, lobe pointing, lobe width, gain, polarization, etc. must be within the allowable range . With the rapid development of wireless communication, directional antennas have been more and more widely used in order t...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q19/10H01Q21/24
Inventor 吕文俊吴西彤马壮菅宝龙朱洪波
Owner ZHONGTIAN BROADBAND TECH
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