CN103346391B - Back side open flume type concave-convex branch double-frequency micro-strip antenna - Google Patents
Back side open flume type concave-convex branch double-frequency micro-strip antenna Download PDFInfo
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- CN103346391B CN103346391B CN201310297742.0A CN201310297742A CN103346391B CN 103346391 B CN103346391 B CN 103346391B CN 201310297742 A CN201310297742 A CN 201310297742A CN 103346391 B CN103346391 B CN 103346391B
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Abstract
The invention discloses a kind of back side open flume type concave-convex branch double-frequency micro-strip antenna.It includes that substrate, concave-convex radiation patch, impedance matching input transmission line, square box metal ground plate, upside Y shape sheet metal, downside Y shape sheet metal；The upper surface of substrate is provided with concave-convex radiation patch and impedance matching input transmission line；The lower surface of substrate is provided with square box metal ground plate, upside Y shape sheet metal and downside Y shape sheet metal, and upside Y shape sheet metal is connected inside the upper side frame of square box metal ground plate, and downside Y shape sheet metal is connected inside the lower frame of square box metal ground plate；Concave-convex radiation patch is connected with the upper right side of impedance matching input transmission line, and the bottom of impedance matching input transmission line is connected with the bottom of substrate, and the bottom of square box metal ground plate is connected with the bottom of substrate.The present invention has that loss is low, radiation characteristic good, simple in construction, size are little, saves material, is easy to make and be easily integrated etc. advantage.
Description
Technical field
The present invention relates to antenna, particularly relate to a kind of back side open flume type concave-convex branch wideband microstrip
Antenna.
Background technology
Antenna, as a kind of equipment received and launch radio wave, is radio communication and radar system
A critical component in system.In recent years, owing to communication system is towards Large Copacity, multi-functional and
Intelligentized trend development, it is the blueest or green that microstrip antenna obtains people in development in the future
Look at.The most basic structure of microstrip antenna is exactly additional thin on the dielectric substrate of metal covering with ground
Metal patch, by certain feeding classification, the areas of dielectric between paster and grounding metal plane
Underexcitation plays radio frequency electromagnetic field, this outside spoke in gap formed with ground plane by patch edges
Penetrate.Many advantages based on microstrip antenna, such as volume is little, lightweight, and section is low, easily altogether
Shape, easy of integration and low cost etc., make microstrip antenna be widely used, and micro-
In this wide field of wave antenna, constitute a research field with oneself characteristic.
At present, dual frequency characteristics and the Wide-Band Design of microstrip antenna causes people's great interest.Double
The micro-strip paster antenna of frequency work, requires there is similar radiation on two working frequency range in principle
Characteristic and matching properties, obtain these performances remarkable with planar technique, particularly must protect
Stay the structure that paster antenna is intrinsic.There is a lot of method at present for realizing the double frequency work of microstrip antenna
Make.These methods are broadly divided into three classes: the first kind is multimode double-frequency micro-strip antenna, and Equations of The Second Kind is
Multi-disc double-frequency micro-strip antenna, the 3rd class is reactance loaded antenna paster antenna.In some communication system,
As mobile communication and global positioning system typically require two-band or multiband work.Wireless
In the communications field, frequency multiplexing technique has then obtained more being widely applied, mobile phone terminal and WALN
Communication system is required for the antenna of double frequency even three frequency work.Thus, it is excellent that research design goes out performance
Good double-frequency micro-strip antenna has great importance.
Summary of the invention
The present invention is that gain is low not in order to overcome prior art to be lost in a wireless local area network greatly
Foot, it is provided that the back side open flume type concave-convex branch double-frequency micro-strip antenna of a kind of function admirable.
In order to achieve the above object, technical scheme is as follows:
Back side open flume type concave-convex branch double-frequency micro-strip antenna includes substrate, concave-convex radiation patch
Sheet, impedance matching input transmission line, square box metal ground plate, upside Y shape sheet metal,
Downside Y shape sheet metal；The upper surface of substrate is provided with concave-convex radiation patch and impedance matching is defeated
Enter transmission line, the shape of concave-convex radiation patch by clip on the upside of a rectangle four rectangles, under
Four rectangles are clipped in side, lower left side is clipped a rectangle and obtained, and between nine rectangles cut
Horizontal spacing is identical, and concave-convex radiation patch inputs the upper right side phase of transmission line with impedance matching
Even, the bottom of impedance matching input transmission line is connected with the bottom of substrate, square box metallic ground
The bottom of plate is connected with the bottom of substrate；The lower surface of substrate be provided with square box metal ground plate,
Upside Y shape sheet metal and downside Y shape sheet metal, upside Y shape sheet metal and square box metal
It is connected inside the upper side frame of earth plate, downside Y shape sheet metal and square box metal ground plate
It is connected inside lower frame.
Described substrate is glass-epoxy material, a length of 36mm of substrate～
38mm, width is 36mm～38mm.Described concave-convex radiation patch intercepts front rectangle
Width is 3mm～4mm, a length of 25mm～27mm, and the width of the cut rectangle in upside is
1.5mm～2.5mm, a length of 2mm～3mm, the width of the cut rectangle in downside is
1.5mm～2.5mm, a length of 2mm～3mm, the width of the cut rectangle of lower left side is
0.5mm～1.5mm, a length of 2mm～3mm, horizontal spacing between nine rectangles cut
For 0.9mm～1.1mm.The a length of 19mm of described impedance matching input transmission line～
20mm, width is 3.5mm～4.0mm.The outer length of side of described square box metal ground plate
For 36mm～38mm, a length of 24mm～26mm of inner edge.Described upside Y shape sheet metal
Identical with the dimensional parameters of downside Y shape sheet metal, total length is 6mm～8mm, height overall
Degree is 6mm～8mm, a width of 1mm～2mm of metal wire of paster；The height of Y shape branch
Degree is 2.5mm～3.0mm.
The back side open flume type concave-convex branch double-frequency micro-strip antenna of the present invention have loss low, radiation
Characteristic is good, simple in construction, size are little, save material, be easy to advantages such as making and be easily integrated.
Accompanying drawing illustrates:
Fig. 1 is the Facad structure schematic diagram of back side open flume type concave-convex branch double-frequency micro-strip antenna；
Fig. 2 is the structure schematic diagram of back side open flume type concave-convex branch double-frequency micro-strip antenna；
Fig. 3 is the S parameter curve chart of back side open flume type concave-convex branch double-frequency micro-strip antenna；
Fig. 4 is the antenna E surface radiation directional diagram when 3.21GHz；
Fig. 5 is the antenna H surface radiation directional diagram when 3.21GHz；
Fig. 6 is the antenna E surface radiation directional diagram when 5.30GHz；
Fig. 7 is the antenna H surface radiation directional diagram when 5.30GHz.
Detailed description of the invention
As shown in Fig. 1～2, back side open flume type concave-convex branch double-frequency micro-strip antenna include substrate 1,
Concave-convex radiation patch 2, impedance matching input transmission line 3, square box metal ground plate 4,
Upside Y shape sheet metal 5, downside Y shape sheet metal 6；The upper surface of substrate 1 is provided with concave-convex
Radiation patch 2 and impedance matching input transmission line 3, the shape of concave-convex radiation patch 2 is by one
Clip four rectangles on the upside of individual rectangle, four rectangles are clipped in downside, lower left side clips a rectangle
Obtain, and spacing horizontal between nine rectangles cut be identical, concave-convex radiation patch 2 with
The upper right side of impedance matching input transmission line 3 is connected, the bottom of impedance matching input transmission line 3
It is connected with the bottom of substrate 1, the bottom phase of the bottom of square box metal ground plate 4 and substrate 1
Even；The lower surface of substrate 1 is provided with square box metal ground plate 4, upside Y shape sheet metal 5 and
Downside Y shape sheet metal 6, upside Y shape sheet metal 5 is upper with square box metal ground plate 4
Scuncheon is connected, downside Y shape sheet metal 6 and the lower frame of square box metal ground plate 4
Inner side is connected.
Described substrate 1 is glass-epoxy material, a length of 36mm of substrate 1～
38mm, width is 36mm～38mm.Described concave-convex radiation patch 2 intercepts front rectangle
Width be 3mm～4mm, a length of 25mm～27mm, the width of the cut rectangle in upside
For 1.5mm～2.5mm, a length of 2mm～3mm, the width of the cut rectangle in downside is
1.5mm～2.5mm, a length of 2mm～3mm, the width of the cut rectangle of lower left side is
0.5mm～1.5mm, a length of 2mm～3mm, horizontal spacing between nine rectangles cut
For 0.9mm～1.1mm.The a length of 19mm of described impedance matching input transmission line 3～
20mm, width is 3.5mm～4.0mm.The outside of described square box metal ground plate 4
A length of 36mm～38mm, a length of 24mm～26mm of inner edge.Described upside Y shape metal
Sheet 5 is identical with the dimensional parameters of downside Y shape sheet metal 6, and total length is 6mm～8mm,
Total height is 6mm～8mm, a width of 1mm～2mm of metal wire of paster；Y shape branch
Height be 2.5mm～3.0mm.
Embodiment 1
The glass-epoxy material selecting dielectric constant to be 4.4 makes micro-strip substrate, thick
Degree is 1.5mm.The a length of 36mm of substrate, width is 36mm.Concave-convex radiation patch
Before intercepting, the width of rectangle is 3.5mm, and a length of 26mm, the width of the cut rectangle in upside is
2mm, a length of 2.5mm, the width of the cut rectangle in downside is 2mm, a length of 2.5mm,
The width of the cut rectangle of lower left side is 1mm, a length of 2.5mm, nine rectangles cut it
Between horizontal spacing be 1mm.The a length of 19mm of impedance matching input transmission line, width is
3.5mm.The a length of 36mm in outside of square box metal ground plate, a length of 24mm of inner edge.On
Side Y shape sheet metal is identical with the dimensional parameters of downside Y shape sheet metal, and total length is 6mm,
Total height is 6mm, a width of 1mm of metal wire of paster；The height of Y shape branch is 2.5mm.
The property indices of back side open flume type concave-convex branch double-frequency micro-strip antenna uses CST software
Carry out test analysis, the S parameter curve of gained as shown in Figure 3, as seen from the figure ,-10dB
Following working frequency range is 3.152GHz～3.252GHz and 5.218GHz～5.376GHz.
Fig. 4-5 show the antenna E face when 3.21GHz and H face directional diagram, as seen from the figure,
When frequency is 3.21GHz, gain is 4.3dBi, and half power lobe width is 70.0 °.Figure
6-7 show the antenna E face when 5.30GHz and H face directional diagram, as seen from the figure, at frequency
When rate is 5.30GHz, gain is 1.9dBi, and half power lobe width is 54.3 °.
Claims (6)
1. a back side open flume type concave-convex branch double-frequency micro-strip antenna, it is characterised in that include
Substrate (1), concave-convex radiation patch (2), impedance matching input transmission line (3), square box
Metal ground plate (4), upside Y shape sheet metal (5), downside Y shape sheet metal (6)；Base
The upper surface of plate (1) is provided with concave-convex radiation patch (2) and impedance matching input transmission line (3),
The shape of concave-convex radiation patch (2) is cut by clipping four rectangles, downsides on the upside of a rectangle
Go four rectangles, lower left side to clip a rectangle to obtain, and between nine rectangles cut laterally
Spacing identical, the right side of concave-convex radiation patch (2) and impedance matching input transmission line (3)
Upper end is connected, and the bottom of impedance matching input transmission line (3) is connected with the bottom of substrate (1),
The bottom of square box metal ground plate (4) is connected with the bottom of substrate (1)；Substrate (1)
Lower surface be provided with square box metal ground plate (4), upside Y shape sheet metal (5) and downside
Y shape sheet metal (6), upside Y shape sheet metal (5) and square box metal ground plate (4)
Upper side frame inside be connected, downside Y shape sheet metal (6) and square box metal ground plate (4)
Lower frame inside be connected.
A kind of back side the most according to claim 1 open flume type concave-convex branch wideband microstrip
Antenna, it is characterised in that described substrate (1) is glass-epoxy material, substrate
(1) a length of 36mm～38mm, width is 36mm～38mm.
A kind of back side the most according to claim 1 open flume type concave-convex branch wideband microstrip
Antenna, it is characterised in that described concave-convex radiation patch (2) intercepts the width of front rectangle and is
3mm～4mm, a length of 25mm～27mm, the width of the cut rectangle in upside be 1.5mm～
2.5mm, a length of 2mm～3mm, the width of the cut rectangle in downside is 1.5mm～2.5mm, long
Degree is 2mm～3mm, and the width of the cut rectangle of lower left side is 0.5mm～1.5mm, a length of
2mm～3mm, between nine rectangles cut, horizontal spacing is 0.9mm～1.1mm.
A kind of back side the most according to claim 1 open flume type concave-convex branch wideband microstrip
Antenna, it is characterised in that a length of 19mm of described impedance matching input transmission line (3)～
20mm, width is 3.5mm～4.0mm.
A kind of back side the most according to claim 1 open flume type concave-convex branch wideband microstrip
Antenna, it is characterised in that a length of 36mm in outside of described square box metal ground plate (4)～
38mm, a length of 24mm～26mm of inner edge.
A kind of back side the most according to claim 1 open flume type concave-convex branch wideband microstrip
Antenna, it is characterised in that described upside Y shape sheet metal (5) and downside Y shape sheet metal (6)
Dimensional parameters identical, total length is 6mm～8mm, and total height is 6mm～8mm,
A width of 1mm～2mm of metal wire of paster；The height of Y shape branch is 2.5mm～3.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310297742.0A CN103346391B (en) | 2013-07-11 | 2013-07-11 | Back side open flume type concave-convex branch double-frequency micro-strip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310297742.0A CN103346391B (en) | 2013-07-11 | 2013-07-11 | Back side open flume type concave-convex branch double-frequency micro-strip antenna |
Publications (2)
| Publication Number | Publication Date |
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| CN103346391A CN103346391A (en) | 2013-10-09 |
| CN103346391B true CN103346391B (en) | 2016-08-10 |
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| CN201310297742.0A Expired - Fee Related CN103346391B (en) | 2013-07-11 | 2013-07-11 | Back side open flume type concave-convex branch double-frequency micro-strip antenna |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108987931A (en) * | 2018-07-26 | 2018-12-11 | 中国计量大学 | A kind of five band antenna of GPS/WiMax |
| CN111262006A (en) * | 2020-01-19 | 2020-06-09 | 惠州Tcl移动通信有限公司 | Antenna structure and terminal equipment adopting same |
| CA3220845A1 (en) * | 2021-05-31 | 2022-12-08 | Jun Tao | Antenna, detection apparatus, and terminal |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201655958U (en) * | 2010-03-03 | 2010-11-24 | 神讯电脑(昆山)有限公司 | Double-frequency inverted-F type antenna |
| TW201104954A (en) * | 2009-07-30 | 2011-02-01 | Richwave Technology Corp | Multiple-band microstrip meander-line antenna |
| CN203218431U (en) * | 2013-05-10 | 2013-09-25 | 宜兴亚泰科技有限公司 | Cavity Bridge |
| CN203339300U (en) * | 2013-06-28 | 2013-12-11 | 中国计量学院 | Bent branch-shaped dual-frequency micro-strip antenna |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6674405B2 (en) * | 2001-02-15 | 2004-01-06 | Benq Corporation | Dual-band meandering-line antenna |
-
2013
- 2013-07-11 CN CN201310297742.0A patent/CN103346391B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201104954A (en) * | 2009-07-30 | 2011-02-01 | Richwave Technology Corp | Multiple-band microstrip meander-line antenna |
| CN201655958U (en) * | 2010-03-03 | 2010-11-24 | 神讯电脑(昆山)有限公司 | Double-frequency inverted-F type antenna |
| CN203218431U (en) * | 2013-05-10 | 2013-09-25 | 宜兴亚泰科技有限公司 | Cavity Bridge |
| CN203339300U (en) * | 2013-06-28 | 2013-12-11 | 中国计量学院 | Bent branch-shaped dual-frequency micro-strip antenna |
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| CB03 | Change of inventor or designer information |
Inventor after: Li Jiusheng Inventor after: Tang Lin Inventor before: Li Jiusheng |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20170711 |