CN202662792U - Double-triangle microstrip antenna - Google Patents
Double-triangle microstrip antenna Download PDFInfo
- Publication number
- CN202662792U CN202662792U CN 201220298584 CN201220298584U CN202662792U CN 202662792 U CN202662792 U CN 202662792U CN 201220298584 CN201220298584 CN 201220298584 CN 201220298584 U CN201220298584 U CN 201220298584U CN 202662792 U CN202662792 U CN 202662792U
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- triangle
- microstrip
- impedance matching
- matching input
- ground plate
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Abstract
The utility model discloses a double-triangle microstrip antenna, which comprises a microstrip base plate, a triangular radiation paste, an impedance matching input microstrip wire, a symmetric triangular metal grounding plate, a connection matching input transmission wire and a rectangular metal grounding plate, wherein the triangular radiation paste and the impedance matching input microstrip wire are arranged on the upper surface of the microstrip base plate; the end point of the triangular radiation paste is connected with one end of the impedance matching input microstrip wire; the other end of the impedance matching input microstrip wire is connected with the bottom of the microstrip base plate; the symmetric triangular metal grounding plate, the connection matching input transmission wire and the rectangular metal grounding plate are arranged on the lower surface of the microstrip base plate; the end point of the symmetric triangular metal grounding plate is connected with one end of the connection matching input transmission wire; the other end of the impedance matching input microstrip wire is connected with the rectangular metal grounding plate; and the bottom of the rectangular metal grounding plate is connected with the bottom of the microstrip base plate. In a working frequency band, the double-triangle microstrip antenna has the advantages of stable radiation characteristic, low loss and low cost and is simple in structure and easy to manufacture.
Description
Technical field
The utility model relates to antenna, relates in particular to a kind of double triangle microstrip antenna.
Technical background
Along with the development of wireless communication technology and popularizing of electronics applications, antenna is had higher requirement, be mainly reflected in the wider of frequency band, volume is less, is convenient to install, set up and carry, and has simultaneously higher efficient.Yet than low-frequency range, traditional half-wave antenna size is still too large, and bandwidth is too narrow (only having 0.7% ~ 7%) still, and addressing the above problem for civilian has a great meaning, and the research of minimized wide-band microstrip antenna is still a focus.
Microstrip antenna is since the 70's of 20th century, the initial stage succeeded in developing, little, lightweight with its volume, low section, easily conformal, make simple, cost is low, easily and the series of advantages such as microstripline is integrated, more and more be subject to people's attention, it develops the maturing that more becomes, and is widely used.Although more existing microstrip antennas energy wideband work on the market,, directional properties is poor, and loss is large, therefore satisfies the requirement of communication system in the urgent need to the antenna that works out a kind of high-gain, low-loss, wideband work.By correctly size, material and the shape of selective scattering medium, it can stop the propagation of electromagnetic wave on certain direction or all directions, has been widely used in the design of the microwave circuits such as filter, power splitter.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiency that prior art is narrow at the communication system midband, loss is large, a kind of double triangle microstrip antenna to be provided.
In order to achieve the above object, the technical solution of the utility model is as follows:
The double triangle microstrip antenna comprises little belt substrate, triangle radiation patch, impedance matching input microstrip line, symmetrical triangle metal ground plate, matching connection input transmission line and rectangular metal ground plate; Little belt substrate upper surface is provided with triangle radiation patch, impedance matching input microstrip line, and triangle radiation patch end points links to each other with impedance matching input microstrip line one end, and the other end of impedance matching input microstrip line links to each other with the bottom of little belt substrate; Little belt substrate lower surface is provided with symmetrical triangle metal ground plate, matching connection input transmission line and rectangular metal ground plate, symmetrical triangle radiation patch end points links to each other with matching connection input transmission line one end, the other end of impedance matching input microstrip line links to each other with the rectangular metal ground plate, and the bottom of rectangular metal ground plate links to each other with the bottom of little belt substrate.
Described little belt substrate is the FR4 material.The length of described little belt substrate is 49mm～51mm, and wide is 49mm～51mm.Described triangle radiation patch and symmetrical triangle metal ground plate are isosceles triangular structure, and bottom side length is 29mm～31mm, and height is 21mm～23mm.Described impedance matching input microstrip line and triangle radiation patch adopt feed microstrip line to connect, and characteristic impedance is 50 Ω.The width of described impedance matching input microstrip line and matching connection input transmission line is 2mm～3mm.The length of described rectangular metal ground plate is 49mm～51mm, and wide is 5mm～7mm.
Have stable radiation characteristic in the utility model working band, loss is low, cost is low, and is simple in structure, be easy to make.
Description of drawings:
Fig. 1 is the structural representation in double triangle microstrip antenna front;
Fig. 2 is the structural representation at the double triangle microstrip antenna back side;
Fig. 3 is double triangle microstrip antenna insertion loss curve chart;
Fig. 4 is the antenna pattern of double triangle microstrip antenna when 5.2GHz;
Fig. 5 is the antenna pattern of double triangle microstrip antenna when 5.5GHz;
Fig. 6 is the antenna pattern of double triangle microstrip antenna when 5.8GHz.
Embodiment
The double triangle microstrip antenna comprises little belt substrate 1, triangle radiation patch 2, impedance matching input microstrip line 3, symmetrical triangle metal ground plate 4, matching connection input transmission line 5 and rectangular metal ground plate 6; Little belt substrate 1 upper surface is provided with triangle radiation patch 2, impedance matching input microstrip line 3, and triangle radiation patch 2 end points link to each other with impedance matching input microstrip line 3 one ends, and the other end of impedance matching input microstrip line 3 links to each other with the bottom of little belt substrate 1; Little belt substrate 1 lower surface is provided with symmetrical triangle metal ground plate 4, matching connection input transmission line 5 and rectangular metal ground plate 6, symmetrical triangle radiation patch 4 end points link to each other with matching connection input transmission line 5 one ends, the other end of impedance matching input microstrip line 5 links to each other with rectangular metal ground plate 6, and the bottom of rectangular metal ground plate 6 links to each other with the bottom of little belt substrate 1.
Described little belt substrate 1 is the FR4 material.The length of described little belt substrate 1 is 49mm～51mm, and wide is 49mm～51mm.Described triangle radiation patch 2 and symmetrical triangle metal ground plate 4 are isosceles triangular structure, and bottom side length is 29mm～31mm, and height is 21mm～23mm.Described impedance matching input microstrip line 3 and triangle radiation patch 2 adopt feed microstrip line to connect, and characteristic impedance is 50 Ω.The width of described impedance matching input microstrip line 3 and matching connection input transmission line 5 is 2mm～3mm.The length of described rectangular metal ground plate 6 is 49mm～51mm, and wide is 5mm～7mm.
The double triangle microstrip antenna:
Selecting dielectric constant is that 4.4 FR4 material is made little belt substrate, and thickness is 1.2 mm.The length of little belt substrate is 50mm, and wide is 50mm.Triangle radiation patch and symmetrical triangle metal ground plate, bottom side length are 30mm, and height is 22mm.Impedance matching input microstrip line and triangle radiation patch, characteristic impedance is 50 Ω.The width of impedance matching input microstrip line is 2.6mm.The length of rectangular metal ground plate is 50mm, and wide is 6mm.Use software that the radiation characteristics such as the insertion loss curve of double triangle microstrip antenna and gain have been carried out simulated measurement, insertion loss curve such as Fig. 3 of the double triangle microstrip antenna of gained.As seen from Figure 3, insertion loss can cover the whole frequency range of WLAN standard 5.2GHz section 5.15 ~ 5.35GHz, the whole frequency range of 5.5 GHz sections, 5.25 ~ 5.85GHz and the whole frequency range of 5.8 GHz sections, 5.725 ~ 5.85GHz fully less than-10dB in 4.67 ~ 6.98GHz scope.Fig. 4-Figure 6 shows that respectively antenna pattern and antenna pattern when 5.2GHz, 5.5GHz, 5.8GHz of double triangle microstrip antenna, gain when frequency is 5.2GHz is 5.3dBi, the half power lobe width is 198.1 °, gain when frequency is 5.5GHz is 5.4dBi, the half power lobe width is 86.6 °, gain when frequency is 5.8GHz is 5.6dBi, and the half power lobe width is 73 °.
Claims (7)
1. a double triangle microstrip antenna is characterized in that comprising little belt substrate (1), triangle radiation patch (2), impedance matching input microstrip line (3), symmetrical triangle metal ground plate (4), matching connection input transmission line (5) and rectangular metal ground plate (6); Little belt substrate (1) upper surface is provided with triangle radiation patch (2), impedance matching input microstrip line (3), triangle radiation patch (2) end points links to each other with impedance matching input microstrip line (3) one ends, and the other end of impedance matching input microstrip line (3) links to each other with the bottom of little belt substrate (1); Little belt substrate (1) lower surface is provided with symmetrical triangle metal ground plate (4), matching connection input transmission line (5) and rectangular metal ground plate (6), symmetrical triangle radiation patch (4) end points links to each other with matching connection input transmission line (5) one ends, the other end of impedance matching input microstrip line (5) links to each other with rectangular metal ground plate (6), and the bottom of rectangular metal ground plate (6) links to each other with the bottom of little belt substrate (1).
2. a kind of double triangle microstrip antenna as claimed in claim 1 is characterized in that described little belt substrate (1) is the FR4 material.
3. a kind of double triangle microstrip antenna as claimed in claim 1, the length that it is characterized in that described little belt substrate (1) is 49mm～51mm, wide is 49mm～51mm.
4. a kind of double triangle microstrip antenna as claimed in claim 1 is characterized in that described triangle radiation patch (2) and symmetrical triangle metal ground plate (4) are isosceles triangular structure, and bottom side length is 29mm～31mm, and height is 21mm～23mm.
5. a kind of double triangle microstrip antenna as claimed in claim 1 is characterized in that described impedance matching input microstrip line (3) and triangle radiation patch (2), adopts feed microstrip line to connect, and characteristic impedance is 50 Ω.
6. a kind of double triangle microstrip antenna as claimed in claim 1 is characterized in that the width of described impedance matching input microstrip line (3) and matching connection input transmission line (5) is 2mm～3mm.
7. a kind of double triangle microstrip antenna as claimed in claim 1, the length that it is characterized in that described rectangular metal ground plate (6) is 49mm～51mm, wide is 5mm～7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220298584 CN202662792U (en) | 2012-06-25 | 2012-06-25 | Double-triangle microstrip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220298584 CN202662792U (en) | 2012-06-25 | 2012-06-25 | Double-triangle microstrip antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202662792U true CN202662792U (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220298584 Expired - Fee Related CN202662792U (en) | 2012-06-25 | 2012-06-25 | Double-triangle microstrip antenna |
Country Status (1)
| Country | Link |
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| CN (1) | CN202662792U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104577308A (en) * | 2013-10-24 | 2015-04-29 | 华为终端有限公司 | Antenna |
| CN106785403A (en) * | 2017-01-09 | 2017-05-31 | 成都信息工程大学 | Two-band 5G microstrip antennas |
| CN114094326A (en) * | 2021-11-04 | 2022-02-25 | 天津大学 | UWB antenna gain improvement structure for WLAN applications |
-
2012
- 2012-06-25 CN CN 201220298584 patent/CN202662792U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104577308A (en) * | 2013-10-24 | 2015-04-29 | 华为终端有限公司 | Antenna |
| CN106785403A (en) * | 2017-01-09 | 2017-05-31 | 成都信息工程大学 | Two-band 5G microstrip antennas |
| CN114094326A (en) * | 2021-11-04 | 2022-02-25 | 天津大学 | UWB antenna gain improvement structure for WLAN applications |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20130625 |