CN103794864B - The square double-band printed antenna of symmetrical minor matters - Google Patents
The square double-band printed antenna of symmetrical minor matters Download PDFInfo
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- CN103794864B CN103794864B CN201410024239.2A CN201410024239A CN103794864B CN 103794864 B CN103794864 B CN 103794864B CN 201410024239 A CN201410024239 A CN 201410024239A CN 103794864 B CN103794864 B CN 103794864B
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Abstract
The invention discloses the square double-band printed antenna of a kind of symmetrical minor matters.It comprises substrate, square-shaped radiation paster, left inverted L-shaped sheet metal, right inverted L-shaped sheet metal, impedance matching input transmission line, rectangular metal ground plate, left C-shaped sheet metal, right C-shaped sheet metal, horizontal rectangular metal sheet; The upper surface of substrate is provided with square-shaped radiation paster, left inverted L-shaped sheet metal, right inverted L-shaped sheet metal and impedance matching input transmission line, the lower surface of substrate is provided with rectangular metal ground plate, left C-shaped sheet metal, right C-shaped sheet metal and horizontal rectangular metal sheet, the top of impedance matching input transmission line is connected with square-shaped radiation paster, the impedance matching input bottom of transmission line is connected with the bottom of substrate, and the bottom of rectangular metal ground plate is connected with the bottom of substrate.It is good that the present invention has radiation characteristic, double frequency-band, and volume is little, lightweight, is easy to batch production, is convenient to the advantages such as integrated.
Description
Technical field
The present invention relates to antenna, particularly relate to the square double-band printed antenna of a kind of symmetrical minor matters.
Background technology
Microstrip antenna can be divided into circle, rectangle, annular, triangle, pentagon etc. by shape; Mode of resonance (standing wave type) and the anharmonic vibration shape (travelling-wave type) microstrip antenna can be divided into by principle.The former has specific size, generally can only be operated near resonance frequency; And the latter does not have the restriction of resonance size, its end will add matched load to ensure transmission row ripple.Microstrip antenna can be divided into three major types by architectural characteristic: micro-strip paster antenna, micro-antenna with seam, microband travelling wave antenna.Compared with conventional microwave antenna, microstrip antenna tool has the following advantages: little, lightweight, the low section of volume, can be conformal with carrier; Low cost of manufacture, energy and active device, circuit are integrated into unified assembly, are therefore applicable to batch production; Linear polarization and circular polarization can be realized by simple feed; Be easy to make double frequency, dual polarized antenna; Easily and microwave integrated circuit integrated; Feeder line can manufacture with matching network together with antenna structure.
The characteristics such as microstrip antenna was little with its volume in recent years, and section is low, easy of integration, and cost is low and good performance are paid close attention to widely.Along with the continuous increase of mobile communication system service, communication equipment is constantly to miniaturization, also more and more higher to antenna volume, requirement that is integrated and working frequency range.Therefore be necessary to launch research and design work to Miniaturized multiband microstrip antenna.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of symmetrical minor matters square double-band printed antenna.
The square double-band printed antenna of symmetrical minor matters comprises substrate, square-shaped radiation paster, left inverted L-shaped sheet metal, right inverted L-shaped sheet metal, impedance matching input transmission line, rectangular metal ground plate, left C-shaped sheet metal, right C-shaped sheet metal, horizontal rectangular metal sheet, the upper surface of substrate is provided with square-shaped radiation paster, left inverted L-shaped sheet metal, right inverted L-shaped sheet metal and impedance matching input transmission line, the lower surface of substrate is provided with rectangular metal ground plate, left C-shaped sheet metal, right C-shaped sheet metal and horizontal rectangular metal sheet, the top of impedance matching input transmission line is connected with square-shaped radiation paster, the impedance matching input bottom of transmission line is connected with the bottom of substrate, the bottom righthand side of left inverted L-shaped sheet metal is all connected with the upper end of square-shaped radiation paster with the lower-left end of right inverted L-shaped sheet metal, left C-shaped sheet metal and right C-shaped sheet metal are symmetrically distributed in rectangular metal ground plate both sides, the left end of horizontal rectangular metal sheet is connected with left C-shaped sheet metal central right, the right-hand member of horizontal rectangular metal sheet is connected with right C-shaped sheet metal center left, the bottom of rectangular metal ground plate is connected with the bottom of substrate.
Described substrate is glass-epoxy material, and the length of substrate is 12mm ~ 14mm, and width is 18mm ~ 20mm.The length of side of described square-shaped radiation paster is 10mm ~ 11mm.Described left inverted L-shaped sheet metal is identical with the dimensional parameters of right inverted L-shaped sheet metal, and metal width is 0.5mm ~ 1.0mm; The total length of left inverted L-shaped sheet metal is 4.5mm ~ 5.0mm, and the height of the left side rectangle of left inverted L-shaped sheet metal is 4.5mm ~ 5.0mm, and the height of right side rectangle is 0.7mm ~ 1.0mm; Distance between left inverted L-shaped sheet metal and right inverted L-shaped sheet metal is 2.4mm ~ 2.5mm.The length of described impedance matching input transmission line is 7mm ~ 8mm, and width is 2mm ~ 3mm.The length of described rectangular metal ground plate is 12mm ~ 13mm, and width is 3.5mm ~ 4.0mm.Described left C-shaped sheet metal is identical with the dimensional parameters of right C-shaped sheet metal, and total length is 5mm ~ 6mm, and overall width is 9mm ~ 10mm, and metal width is 1mm ~ 2mm; Distance between left C-shaped sheet metal and right C-shaped sheet metal is 1mm ~ 2mm.The length of described horizontal rectangular metal sheet is 9mm ~ 10mm, and width is 1mm ~ 2mm.
It is good that the square double-band printed antenna of symmetrical minor matters of the present invention has radiation characteristic, double frequency-band, and volume is little, lightweight, is easy to batch production, is convenient to the advantages such as integrated.
Accompanying drawing illustrates:
Fig. 1 is the Facad structure schematic diagram of the square double-band printed antenna of symmetrical minor matters;
Fig. 2 is the structure schematic diagram of the square double-band printed antenna of symmetrical minor matters;
Fig. 3 is the S parameter curve chart of the square double-band printed antenna of symmetrical minor matters;
Fig. 4 is the E surface radiation directional diagram of antenna when 6.0GHz;
Fig. 5 is the H surface radiation directional diagram of antenna when 6.0GHz;
Fig. 6 is the E surface radiation directional diagram of antenna when 8.9GHz;
Fig. 7 is the H surface radiation directional diagram of antenna when 8.9GHz;
Fig. 8 is the Surface current distribution figure of antenna when 6.0GHz;
Fig. 9 is the Surface current distribution figure of antenna when 8.9GHz.
Embodiment
As shown in Fig. 1 ~ 2, the square double-band printed antenna of symmetrical minor matters comprises substrate 1, square-shaped radiation paster 2, left inverted L-shaped sheet metal 3, right inverted L-shaped sheet metal 4, impedance matching input transmission line 5, rectangular metal ground plate 6, left C-shaped sheet metal 7, right C-shaped sheet metal 8, horizontal rectangular metal sheet 9, the upper surface of substrate 1 is provided with square-shaped radiation paster 2, left inverted L-shaped sheet metal 3, right inverted L-shaped sheet metal 4 and impedance matching input transmission line 5, the lower surface of substrate 1 is provided with rectangular metal ground plate 6, left C-shaped sheet metal 7, right C-shaped sheet metal 8 and horizontal rectangular metal sheet 9, the top of impedance matching input transmission line 5 is connected with square-shaped radiation paster 2, the bottom of impedance matching input transmission line 5 is connected with the bottom of substrate 1, the bottom righthand side of left inverted L-shaped sheet metal 3 is all connected with the upper end of square-shaped radiation paster 2 with the lower-left end of right inverted L-shaped sheet metal 4, left C-shaped sheet metal 7 and right C-shaped sheet metal 8 are symmetrically distributed in rectangular metal ground plate 6 both sides, the left end of horizontal rectangular metal sheet 9 is connected with left C-shaped sheet metal 7 central right, the right-hand member of horizontal rectangular metal sheet 9 is connected with right C-shaped sheet metal 8 center left, the bottom of rectangular metal ground plate 6 is connected with the bottom of substrate 1.
Described substrate 1 is glass-epoxy material, and the length of substrate 1 is 12mm ~ 14mm, and width is 18mm ~ 20mm.The length of side of described square-shaped radiation paster 2 is 10mm ~ 11mm.Described left inverted L-shaped sheet metal 3 is identical with the dimensional parameters of right inverted L-shaped sheet metal 4, and metal width is 0.5mm ~ 1.0mm; The total length of left inverted L-shaped sheet metal 3 is 4.5mm ~ 5.0mm, and the height of the left side rectangle of left inverted L-shaped sheet metal 3 is 4.5mm ~ 5.0mm, and the height of right side rectangle is 0.7mm ~ 1.0mm; Distance between left inverted L-shaped sheet metal 3 and right inverted L-shaped sheet metal 4 is 2.4mm ~ 2.5mm.The length of described impedance matching input transmission line 5 is 7mm ~ 8mm, and width is 2mm ~ 3mm.The length of described rectangular metal ground plate 6 is 12mm ~ 13mm, and width is 3.5mm ~ 4.0mm.Described left C-shaped sheet metal 7 is identical with the dimensional parameters of right C-shaped sheet metal 8, and total length is 5mm ~ 6mm, and overall width is 9mm ~ 10mm, and metal width is 1mm ~ 2mm; Distance between left C-shaped sheet metal 7 and right C-shaped sheet metal 8 is 1mm ~ 2mm.The length of described horizontal rectangular metal sheet 9 is 9mm ~ 10mm, and width is 1mm ~ 2mm.
embodiment 1
The square double-band printed antenna of symmetrical minor matters:
Select dielectric constant be 4.4 glass-epoxy material make micro-belt substrate, thickness is 1.6mm.The length of substrate is 12mm, and width is 18mm.The length of side of square-shaped radiation paster is 10mm.Left inverted L-shaped sheet metal is identical with the dimensional parameters of right inverted L-shaped sheet metal, and metal width is 0.5mm; The total length of left inverted L-shaped sheet metal is 4.5mm, and the height of the left side rectangle of left inverted L-shaped sheet metal is 4.5mm, and the height of right side rectangle is 0.7mm; Distance between left inverted L-shaped sheet metal and right inverted L-shaped sheet metal is 2.4mm.The length of impedance matching input transmission line is 7mm, and width is 2mm.The length of rectangular metal ground plate is 12mm, and width is 3.5mm.Left C-shaped sheet metal is identical with the dimensional parameters of right C-shaped sheet metal, and total length is 5mm, and overall width is 9mm, and metal width is 1mm; Distance between left C-shaped sheet metal and right C-shaped sheet metal is 1mm.The length of horizontal rectangular metal sheet is 9mm, and width is 1mm.The property indices of the square double-band printed antenna of symmetrical minor matters adopts CST software to test, and the S parameter curve of gained as shown in Figure 3.As seen from Figure 3, the working frequency range of below-10dB is 5.749GHz ~ 7.435GHz and 8.013GHz ~ 10.023GHz.Fig. 4-5 is depicted as the E face of antenna when 6.0GHz and H face directional diagram, and as seen from the figure, the gain of antenna is 2.6dBi, and half power lobe width is 79.8 °.Fig. 6-7 is depicted as the E face of antenna when 8.9GHz and H face directional diagram, and as seen from the figure, the gain of antenna is 3.9dBi, and half power lobe width is 70.4 °.Fig. 8-9 is depicted as the Surface current distribution figure of antenna respectively when 6.0GHz and 8.9GHz.
Claims (8)
1. the square double-band printed antenna of symmetrical minor matters, comprise substrate (1), characterized by further comprising: square-shaped radiation paster (2), left inverted L-shaped sheet metal (3), right inverted L-shaped sheet metal (4), impedance matching input transmission line (5), rectangular metal ground plate (6), left C-shaped sheet metal (7), right C-shaped sheet metal (8), horizontal rectangular metal sheet (9), the upper surface of substrate (1) is provided with square-shaped radiation paster (2), left inverted L-shaped sheet metal (3), right inverted L-shaped sheet metal (4) and impedance matching input transmission line (5), the lower surface of substrate (1) is provided with rectangular metal ground plate (6), left C-shaped sheet metal (7), right C-shaped sheet metal (8) and horizontal rectangular metal sheet (9), the top of impedance matching input transmission line (5) is connected with the bottom of square-shaped radiation paster (2), the bottom of impedance matching input transmission line (5) is connected with the bottom of substrate (1), the bottom righthand side of left inverted L-shaped sheet metal (3) is all connected with the upper end of square-shaped radiation paster (2) with the lower-left end of right inverted L-shaped sheet metal (4), left C-shaped sheet metal (7) and right C-shaped sheet metal (8) are symmetrically distributed in rectangular metal ground plate (6) both sides, the left end of horizontal rectangular metal sheet (9) is connected with left C-shaped sheet metal (7) central right, the right-hand member of horizontal rectangular metal sheet (9) is connected with right C-shaped sheet metal (8) center left, the bottom of rectangular metal ground plate (6) is connected with the bottom of substrate (1).
2. the square double-band printed antenna of a kind of symmetrical minor matters as claimed in claim 1, it is characterized in that described substrate (1) is glass-epoxy material, the length of substrate (1) is 12mm ~ 14mm, and width is 18mm ~ 20mm.
3. the square double-band printed antenna of a kind of symmetrical minor matters as claimed in claim 1, is characterized in that the length of side of described square-shaped radiation paster (2) is 10mm ~ 11mm.
4. the square double-band printed antenna of a kind of symmetrical minor matters as claimed in claim 1, it is characterized in that described left inverted L-shaped sheet metal (3) is identical with the dimensional parameters of right inverted L-shaped sheet metal (4), metal width is 0.5mm ~ 1.0mm; The total length of left inverted L-shaped sheet metal (3) is 4.5mm ~ 5.0mm, and the height of the left side rectangle of left inverted L-shaped sheet metal (3) is 4.5mm ~ 5.0mm, and the height of right side rectangle is 0.7mm ~ 1.0mm; Distance between left inverted L-shaped sheet metal (3) and right inverted L-shaped sheet metal (4) is 2.4mm ~ 2.5mm.
5. the square double-band printed antenna of a kind of symmetrical minor matters as claimed in claim 1, it is characterized in that the length of described impedance matching input transmission line (5) is 7mm ~ 8mm, width is 2mm ~ 3mm.
6. the square double-band printed antenna of a kind of symmetrical minor matters as claimed in claim 1, it is characterized in that the length of described rectangular metal ground plate (6) is 12mm ~ 13mm, width is 3.5mm ~ 4.0mm.
7. the square double-band printed antenna of a kind of symmetrical minor matters as claimed in claim 1, it is characterized in that described left C-shaped sheet metal (7) is identical with the dimensional parameters of right C-shaped sheet metal (8), total length is 5mm ~ 6mm, and overall width is 9mm ~ 10mm, and metal width is 1mm ~ 2mm; Distance between left C-shaped sheet metal (7) and right C-shaped sheet metal (8) is 1mm ~ 2mm.
8. the square double-band printed antenna of a kind of symmetrical minor matters as claimed in claim 1, it is characterized in that the length of described horizontal rectangular metal sheet (9) is 9mm ~ 10mm, width is 1mm ~ 2mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410024239.2A CN103794864B (en) | 2014-01-18 | 2014-01-18 | The square double-band printed antenna of symmetrical minor matters |
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| CN201410024239.2A CN103794864B (en) | 2014-01-18 | 2014-01-18 | The square double-band printed antenna of symmetrical minor matters |
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| CN103794864A CN103794864A (en) | 2014-05-14 |
| CN103794864B true CN103794864B (en) | 2016-03-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106856257A (en) * | 2015-12-09 | 2017-06-16 | 上海机电工程研究所 | Miniaturized dual-frequency antenna |
| CN107240769B (en) * | 2017-05-03 | 2020-02-11 | 广东通宇通讯股份有限公司 | Low-profile dual-frequency ultra-wideband antenna |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101771189A (en) * | 2009-12-12 | 2010-07-07 | 中国计量学院 | broadband notebook antenna |
| CN102800958A (en) * | 2012-09-03 | 2012-11-28 | 云南大学 | Four-trap ultra-wideband antenna |
| CN103248387A (en) * | 2012-02-14 | 2013-08-14 | 宏达国际电子股份有限公司 | Mobile device and manufacturing method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101192702B (en) * | 2006-11-24 | 2012-07-18 | 鸿富锦精密工业（深圳）有限公司 | Double frequency antenna |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101771189A (en) * | 2009-12-12 | 2010-07-07 | 中国计量学院 | broadband notebook antenna |
| CN103248387A (en) * | 2012-02-14 | 2013-08-14 | 宏达国际电子股份有限公司 | Mobile device and manufacturing method thereof |
| CN102800958A (en) * | 2012-09-03 | 2012-11-28 | 云南大学 | Four-trap ultra-wideband antenna |
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Granted publication date: 20160330 Termination date: 20180118 |