CN203288759U - Centrosymmetric double-M-shaped multiband microstrip antenna - Google Patents
Centrosymmetric double-M-shaped multiband microstrip antenna Download PDFInfo
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- CN203288759U CN203288759U CN2013203870093U CN201320387009U CN203288759U CN 203288759 U CN203288759 U CN 203288759U CN 2013203870093 U CN2013203870093 U CN 2013203870093U CN 201320387009 U CN201320387009 U CN 201320387009U CN 203288759 U CN203288759 U CN 203288759U
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Abstract
The utility model discloses a centrosymmetric double-M-shaped multiband microstrip antenna which comprises a base plate, a front M-shaped radiation patch, an inverted M-shaped radiation patch, an impedance matching input transmission line and a rectangular metal earth plate. The front M-shaped radiation patch, the inverted M-shaped radiation patch and the impedance matching input transmission line are arranged on the upper surface of the base plate, the lower right end of the front M-shaped radiation patch is connected with the top end of the impedance matching input transmission line, the lower left end of the inverted M-shaped radiation patch is connected with the top end of the impedance matching input transmission line, and the other end of the impedance matching input transmission line is connected with the bottom end of the base plate. The rectangular metal earth plate is arranged on the lower surface of the base plate, and the bottom end of the rectangular metal earth plate is connected with the bottom end of the base plate. The centrosymmetric double-M-shaped multiband microstrip antenna has the advantages of being low in loss, good in radiation performance, low in cost, small in size, easy to manufacture, convenient to integrate and the like.
Description
Technical field
The utility model relates to antenna, relates in particular to the two M shape multiband microstrip antennas of a kind of Central Symmetry.
Background technology
Antenna is the indispensable part of institute's wire/wireless communication system, is bearing the signal that transmitter is sent and is changing into electromagnetic form with to spatial, or becoming high-frequency signal to receive for receiver the electromagnetic signal development of evil in febrile disease in free space.Development along with wireless communication technology, the continuous progress of hardware research and development condition, in order to realize better the transmission of wireless signal, also have higher requirement on performance to antenna, under the overall situation of current Wireless Telecom Equipment extensive use, the importance of antenna grows with each passing day especially, and the requirement of the research of various antenna technologies and higher technical indicator makes antenna technology welcome the major opportunity of another development.
Microstrip antenna is a kind of in the numerous ways of realization of antenna, has low section, lightweight, easily conformal, easy making, low cost and easily and the advantage such as circuit is integrated, is widely used as the built-in aerial of portable radio communication device.Various wireless communication system assignment frequency ranges are different, can be in the versatilities of a plurality of system works in order to meet communication equipment, and the working band of antenna should cover these frequency ranges and take as far as possible little space.Therefore microstrip antenna miniaturization, frequency is adjustable, wide band technical research is faced with huge challenge.
Summary of the invention
The utility model is large in order to overcome prior art loss in WLAN (wireless local area network), and the low deficiency that gains provides a kind of Central Symmetry two M shape multiband microstrip antennas.
In order to achieve the above object, the technical solution of the utility model is as follows:
The two M shape multiband microstrip antennas of Central Symmetry comprise substrate, positive M shape radiation patch, the shape of falling M radiation patch, impedance matching input transmission line, rectangular metal ground plate; The upper surface of substrate is provided with positive M shape radiation patch, the shape of falling M radiation patch, impedance matching input transmission line, the bottom righthand side of positive M shape radiation patch is connected transmission line with impedance matching top connects, the lower-left end of the shape of falling M radiation patch is connected transmission line with impedance matching top connects, and the other end of impedance matching input transmission line is connected with the bottom of substrate; The lower surface of substrate is provided with the rectangular metal ground plate, and the bottom of rectangular metal ground plate is connected with the bottom of substrate.
Described substrate is the glass-epoxy material, and the length of substrate is 45mm～50mm, and width is 45mm～50mm.Described positive M shape radiation patch is opened two rectangular channels by a rectangle lower end and is formed, and the length of rectangle is 25mm～30mm, and width is 10mm～15mm, and the length of rectangular channel is 15mm～25mm, and width is 1mm～2mm.The described shape of falling M radiation patch is opened three rectangular channels by a rectangle upper end and is formed, and the length of rectangle is 25mm～30mm, and width is 10mm～15mm, and the length of rectangular channel is 15mm～30mm, and width is 1mm～4mm.The length of described impedance matching input transmission line is 10mm～15mm, and width is 1mm～3mm.The length of described rectangular metal ground plate is 30mm～35mm, and width is 45mm～50mm.
The utlity model has loss low, radiation characteristic is good, and cost is low, and size is little, is easy to make, and is convenient to the advantages such as integrated.
Description of drawings:
Fig. 1 is the Facad structure figure of the two M shape multiband microstrip antennas of Central Symmetry;
Fig. 2 is the structure figure of the two M shape multiband microstrip antennas of Central Symmetry;
Fig. 3 is the loss figure of the two M shape multiband microstrip antennas of Central Symmetry;
Fig. 4 is the two E surface radiation directional diagrams of M shape multiband microstrip antenna when 2.5GHz of Central Symmetry;
Fig. 5 is the two H surface radiation directional diagrams of M shape multiband microstrip antenna when 2.5GHz of Central Symmetry;
Fig. 6 is the two E surface radiation directional diagrams of M shape multiband microstrip antenna when 3.6GHz of Central Symmetry;
Fig. 7 is the two H surface radiation directional diagrams of M shape multiband microstrip antenna when 3.6GHz of Central Symmetry;
Fig. 8 is the two E surface radiation directional diagrams of M shape multiband microstrip antenna when 4.15GHz of Central Symmetry;
Fig. 9 is the two H surface radiation directional diagrams of M shape multiband microstrip antenna when 4.15GHz of Central Symmetry;
Embodiment
As shown in Fig. 1～2, the two M shape multiband microstrip antennas of Central Symmetry comprise substrate 1, positive M shape radiation patch 2, the shape of falling M radiation patch 3, impedance matching input transmission line 4, rectangular metal ground plate 5; The upper surface of substrate 1 is provided with positive M shape radiation patch 2, the shape of falling M radiation patch 3, impedance matching input transmission line 4, the bottom righthand side of positive M shape radiation patch 2 is connected transmission line 4 with impedance matching top connects, the lower-left end of the shape of falling M radiation patch 3 is connected transmission line 4 with impedance matching top connects, and the other end of impedance matching input transmission line 4 is connected with the bottom of substrate 1; The lower surface of substrate 1 is provided with rectangular metal ground plate 5, and the bottom of rectangular metal ground plate 5 is connected with the bottom of substrate 1.
Described substrate 1 is the glass-epoxy material, and the length of substrate 1 is 45mm～50mm, and width is 45mm～50mm.Described positive M shape radiation patch 2 is opened two rectangular channels by a rectangle lower end and is formed, and the length of rectangle is 25mm～30mm, and width is 10mm～15mm, and the length of rectangular channel is 15mm～25mm, and width is 1mm～2mm.The described shape of falling M radiation patch 3 is opened three rectangular channels by a rectangle upper end and is formed, and the length of rectangle is 25mm～30mm, and width is 10mm～15mm, and the length of rectangular channel is 15mm～30mm, and width is 1mm～4mm.The length of described impedance matching input transmission line 4 is 10mm～15mm, and width is 1mm～3mm.The length of described rectangular metal ground plate 5 is 30mm～35mm, and width is 45mm～50mm.
The two M shape multiband microstrip antennas of Central Symmetry:
The selection dielectric constant is 4.4 the little belt substrate of glass-epoxy material making, and thickness is 1.6mm.The length of substrate is 50mm, and width is 50mm.Positive M shape radiation patch is opened two rectangular channels by a rectangle lower end and is formed, and the length of rectangle is 26mm, and width is 14mm, and the length of left side rectangular channel is 23.5mm, and width is 1.5mm, and the length of the right rectangular channel is 18mm, and width is 1.5mm.The shape of falling M radiation patch is opened three rectangular channels by a rectangle upper end and is formed, and the length of rectangle is 30mm, and width is 14mm, the length of left side rectangular channel is 19mm, and width is 1mm, and the length of intermediate rectangular groove is 27mm, width is 2.5mm, and the length of the right rectangular channel is 22mm, and width is 3.5mm.The length of impedance matching input transmission line is 12mm, and width is 2mm.The length of rectangular metal ground plate is 32mm, and width is 50mm.The property indices of the two M shape multiband microstrip antennas of Central Symmetry adopts CST software to test, and the damage curve of gained as shown in Figure 3.As seen from the figure, the following working frequency range of-10dB is 2.48～2.58GHz, 3.48～3.73GHz, 4.02～4.36GHz, 4.63～4.93GHz and 5.31～5.82GHz.Fig. 4-5 are depicted as two E face and the H face directional diagrams of M shape multiband microstrip antenna when 2.5GHz of Central Symmetry, as seen from the figure, when frequency is 2.5GHz, gain as 3.2dBi, and the half power lobe width is 51.8 °.Fig. 6-7 are depicted as two E face and the H face directional diagrams of M shape multiband microstrip antenna when 3.6GHz of Central Symmetry, as seen from the figure, when frequency is 3.6GHz, gain as 3.6dBi, and the half power lobe width is 50.3 °.Fig. 8-9 are depicted as two E face and the H face directional diagrams of M shape multiband microstrip antenna when 4.15GHz of Central Symmetry, as seen from the figure, when frequency is 4.15GHz, gain as 2.7dBi, and the half power lobe width is 55.7 °.
Claims (6)
1. the two M shape multiband microstrip antennas of Central Symmetry, is characterized in that comprising substrate (1), positive M shape radiation patch (2), the shape of falling M radiation patch (3), impedance matching input transmission line (4), rectangular metal ground plate (5); The upper surface of substrate (1) is provided with positive M shape radiation patch (2), the shape of falling M radiation patch (3), impedance matching input transmission line (4), the bottom righthand side of positive M shape radiation patch (2) is connected transmission line (4) with impedance matching top connects, the lower-left end of the shape of falling M radiation patch (3) is connected transmission line (4) with impedance matching top connects, and the other end of impedance matching input transmission line (4) is connected with the bottom of substrate (1); The lower surface of substrate (1) is provided with rectangular metal ground plate (5), and the bottom of rectangular metal ground plate (5) is connected with the bottom of substrate (1).
2. the two M shape multiband microstrip antennas of a kind of Central Symmetry as claimed in claim 1, is characterized in that described substrate (1) is the glass-epoxy material, and the length of substrate (1) is 45mm～50mm, and width is 45mm～50mm.
3. two M shape multiband microstrip antennas of a kind of Central Symmetry as claimed in claim 1, it is characterized in that described positive M shape radiation patch (2) opens two rectangular channels by a rectangle lower end and form, the length of rectangle is 25mm～30mm, width is 10mm～15mm, the length of rectangular channel is 15mm～25mm, and width is 1mm～2mm.
4. two M shape multiband microstrip antennas of a kind of Central Symmetry as claimed in claim 1, it is characterized in that the described shape of falling M radiation patch (3) opens three rectangular channels by a rectangle upper end and form, the length of rectangle is 25mm～30mm, width is 10mm～15mm, the length of rectangular channel is 15mm～30mm, and width is 1mm～4mm.
5. the two M shape multiband microstrip antennas of a kind of Central Symmetry as claimed in claim 1, is characterized in that the length of described impedance matching input transmission line (4) is 10mm～15mm, and width is 1mm～3mm.
6. two M shape multiband microstrip antennas of a kind of Central Symmetry as claimed in claim 1, the length that it is characterized in that described rectangular metal ground plate (5) is 30mm～35mm, width is 45mm～50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203870093U CN203288759U (en) | 2013-06-28 | 2013-06-28 | Centrosymmetric double-M-shaped multiband microstrip antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013203870093U CN203288759U (en) | 2013-06-28 | 2013-06-28 | Centrosymmetric double-M-shaped multiband microstrip antenna |
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| Publication Number | Publication Date |
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| CN203288759U true CN203288759U (en) | 2013-11-13 |
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| CN2013203870093U Expired - Fee Related CN203288759U (en) | 2013-06-28 | 2013-06-28 | Centrosymmetric double-M-shaped multiband microstrip antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109546329A (en) * | 2018-12-26 | 2019-03-29 | 东莞市仁丰电子科技有限公司 | A kind of slot antenna |
-
2013
- 2013-06-28 CN CN2013203870093U patent/CN203288759U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109546329A (en) * | 2018-12-26 | 2019-03-29 | 东莞市仁丰电子科技有限公司 | A kind of slot antenna |
| CN109546329B (en) * | 2018-12-26 | 2024-02-02 | 东莞市仁丰电子科技有限公司 | Slot antenna |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20140628 |
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| EXPY | Termination of patent right or utility model |