CN202662791U - Single frequency band microstrip antenna of concave notching - Google Patents
Single frequency band microstrip antenna of concave notching Download PDFInfo
- Publication number
- CN202662791U CN202662791U CN 201220298580 CN201220298580U CN202662791U CN 202662791 U CN202662791 U CN 202662791U CN 201220298580 CN201220298580 CN 201220298580 CN 201220298580 U CN201220298580 U CN 201220298580U CN 202662791 U CN202662791 U CN 202662791U
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- fluting
- spill
- impedance matching
- microstrip antenna
- matching input
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Abstract
The utility model discloses a single frequency band microstrip antenna of a concave notching. The single frequency band microstrip antenna comprises a microstrip base plate, a concave notching radiation paster, an inverted U-shaped notching, an impedance matching input microstrip line and a metal earth plate. The upper surface of the microstrip base plate is provided with the concave notching radiation paster and the impedance matching input microstrip line. The concave notching radiation paster is provided with the inverted U-shaped notching. The center of a concave portion of the concave notching radiation paster is connected with one end of the impedance matching input microstrip line. The other end of the impedance matching input microstrip line is connected with the bottom end of the microstrip base plate. The lower surface of the microstrip base plate is provided with the metal earth plate. Four edges of the metal earth plate are connected with four edges of the microstrip base plate. The single frequency band microstrip antenna in a working frequency band has a stable radiation characteristic, and is low in loss and cost, simple in structure, and easy to manufacture.
Description
Technical field
The utility model relates to antenna, relates in particular to a kind of spill fluting single band microstrip antenna.
Technical background
It is little, lightweight that microstrip antenna has a volume, low section, can with the carrier syntype, make simply, cost is low, and is easy of integration, easily realizes the plurality of advantages such as double frequency, multiband work, therefore nearly more than ten years microstrip antenna has obtained widely research and development.The double frequency, the multiband microstrip antenna that are applicable to broadband WLAN are are also researched and developed.The module gain of microstrip antenna is lower, and therefore the normal micro-strip array antenna that is comprised of the microband paste unit that adopts obtains larger gain or realizes specific directivity.Array antenna can be realized the sophisticated functions that individual antenna can't be realized, has greater flexibility, higher signal volume, can significantly improve the performance of system.
Microstrip antenna in the WLAN (wireless local area network) generally is that circle or rectangular patch are slotted to improve directionality in the market, but gain is still lower, and loss is large, and power is little.In WLAN used, loss became the critical limitation factor of the larger gain of acquisition.Therefore, satisfy the requirement of WLAN communication system in the urgent need to proposing a kind of high-gain, low-loss antenna.SRR, it is the left-handed materials of a kind of negative permittivity and negative magnetoconductivity, can be structurally novel with the combination of split ring structure and microstrip antenna, miniaturization on the size, not only can satisfy the demand of each frequency range, and on performance, can be easier to satisfy, therefore, in the urgent need to working out the micro-strip paster antenna based on the open circles ring structure.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiency that prior art is narrow at the WLAN (wireless local area network) midband, loss is large, a kind of spill fluting single band microstrip antenna to be provided.
In order to achieve the above object, the technical solution of the utility model is as follows:
Spill fluting single band microstrip antenna comprises little belt substrate, spill fluting radiation patch, inverted U fluting, impedance matching input microstrip line and metal ground plate; Little belt substrate upper surface is provided with spill fluting radiation patch and impedance matching input microstrip line, spill fluting radiation patch is provided with the inverted U fluting, the recess center of spill fluting radiation patch 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; Be provided with metal ground plate at little belt substrate lower surface, the metal ground plate surrounding links to each other with little belt substrate surrounding.
Described little belt substrate is the FR4 material.The length of described little belt substrate is 25mm～30mm, and wide is 45mm～50mm.The length of described spill fluting radiation patch is 23mm～24mm, and wide is 28mm～30mm.The depth of groove of described spill fluting radiation patch is 10mm～12mm, and width is 4mm～5mm.The height of described inverted U fluting is 20mm～22mm, and width is 8mm～9mm, and groove width is 1mm～2mm.Described impedance matching input microstrip line adopts feed microstrip line to be connected with spill fluting radiation patch, and characteristic impedance is 50 Ω.The width of described impedance matching input microstrip line is 2mm～3mm.
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 spill fluting single band microstrip antenna front;
Fig. 2 is the structural representation at the spill fluting single band microstrip antenna back side;
Fig. 3 is spill fluting single band microstrip antenna insertion loss curve chart;
Fig. 4 is the antenna pattern of spill fluting single band microstrip antenna when 2.67GHz.
Embodiment
Spill fluting single band microstrip antenna comprises little belt substrate 1, spill fluting radiation patch 2, inverted U fluting 3, impedance matching input microstrip line 4 and metal ground plate 5; Little belt substrate 1 upper surface is provided with spill fluting radiation patch 2 and impedance matching input microstrip line 4, spill fluting radiation patch 2 is provided with inverted U fluting 3, the recess center of spill fluting radiation patch 2 links to each other with impedance matching input microstrip line 4 one ends, and the other end of impedance matching input microstrip line 4 links to each other with the bottom of little belt substrate 1; Be provided with metal ground plate 5 at little belt substrate 1 lower surface, metal ground plate 5 surroundings link to each other with little belt substrate 1 surrounding.
Described little belt substrate 1 is the FR4 material.The length of described little belt substrate 1 is 25mm～30mm, and wide is 45mm～50mm.The length of described spill fluting radiation patch 2 is 23mm～24mm, and wide is 28mm～30mm.The depth of groove of described spill fluting radiation patch 2 is 10mm～12mm, and width is 4mm～5mm.The height of described inverted U fluting 3 is 20mm～22mm, and width is 8mm～9mm, and groove width is 1mm～2mm.Described impedance matching input microstrip line 4 adopts feed microstrip line to be connected with spill fluting radiation patch 2, and characteristic impedance is 50 Ω.The width of described impedance matching input microstrip line 4 is 2mm～3mm.
Spill fluting single band microstrip antenna:
Selecting dielectric constant is that 4 FR4 material is made little belt substrate, and thickness is 1mm.The length of little belt substrate is 25mm, and wide is 45mm.The length of spill fluting radiation patch is 23.75mm, and wide is 28mm.The depth of groove of spill fluting radiation patch is 11mm, and width is 4.75mm.The height of inverted U fluting is 21mm, and width is 8mm, and groove width is 1mm.Impedance matching input microstrip line adopts feed microstrip line to be connected with spill fluting radiation patch, and characteristic impedance is 50 Ω.The width of impedance matching input microstrip line is 2.76mm.Use software the radiation characteristics such as the insertion loss curve of spill fluting single band microstrip antenna and gain to be carried out insertion loss curve such as Fig. 3 of the spill fluting single band microstrip antenna of simulated measurement gained.As seen from Figure 3, in 2.6 ~ 2.7GHz scope insertion loss less than-10dB.Figure 4 shows that spill fluting single band the microstrip antenna respectively antenna pattern when 2.67GHz and antenna pattern, the gain when frequency is 2.67GHz is 5.8dBi, and the half power lobe width is 126.1 °.
Claims (8)
1. a spill fluting single band microstrip antenna is characterized in that comprising little belt substrate (1), spill fluting radiation patch (2), inverted U fluting (3), impedance matching input microstrip line (4) and metal ground plate (5); Little belt substrate (1) upper surface is provided with spill fluting radiation patch (2) and impedance matching input microstrip line (4), spill fluting radiation patch (2) is provided with inverted U fluting (3), the recess center of spill fluting radiation patch (2) links to each other with impedance matching input microstrip line (4) one ends, and the other end of impedance matching input microstrip line (4) links to each other with the bottom of little belt substrate (1); Be provided with metal ground plate (5) at little belt substrate (1) lower surface, metal ground plate (5) surrounding links to each other with little belt substrate (1) surrounding.
2. a kind of spill fluting single band microstrip antenna as claimed in claim 1 is characterized in that described little belt substrate (1) is the FR4 material.
3. a kind of spill fluting single band microstrip antenna as claimed in claim 1, the length that it is characterized in that described little belt substrate (1) is 25mm～30mm, wide is 45mm～50mm.
4. a kind of spill fluting single band microstrip antenna as claimed in claim 1 is characterized in that the length of described spill fluting radiation patch (2) is 23mm～24mm, and wide is 28mm～30mm.
5. a kind of spill fluting single band microstrip antenna as claimed in claim 1 is characterized in that the depth of groove of described spill fluting radiation patch (2) is 10mm～12mm, and width is 4mm～5mm.
6. a kind of spill fluting single band microstrip antenna as claimed in claim 1 is characterized in that the height of described inverted U fluting (3) is 20mm～22mm, and width is 8mm～9mm, and groove width is 1mm～2mm.
7. a kind of spill fluting single band microstrip antenna as claimed in claim 1 is characterized in that described impedance matching input microstrip line (4) and spill fluting radiation patch (2) adopt feed microstrip line to be connected, and characteristic impedance is 50 Ω.
8. a kind of spill fluting single band microstrip antenna as claimed in claim 1 is characterized in that the width of described impedance matching input microstrip line (4) is 2mm～3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220298580 CN202662791U (en) | 2012-06-25 | 2012-06-25 | Single frequency band microstrip antenna of concave notching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220298580 CN202662791U (en) | 2012-06-25 | 2012-06-25 | Single frequency band microstrip antenna of concave notching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202662791U true CN202662791U (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220298580 Expired - Fee Related CN202662791U (en) | 2012-06-25 | 2012-06-25 | Single frequency band microstrip antenna of concave notching |
Country Status (1)
| Country | Link |
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| CN (1) | CN202662791U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346396A (en) * | 2013-07-11 | 2013-10-09 | 中国计量学院 | Star-shaped slotting type double-frequency microstrip antenna |
| CN113809529A (en) * | 2021-08-03 | 2021-12-17 | 北京邮电大学 | Dual-band impedance matching microstrip antenna and antenna array |
-
2012
- 2012-06-25 CN CN 201220298580 patent/CN202662791U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346396A (en) * | 2013-07-11 | 2013-10-09 | 中国计量学院 | Star-shaped slotting type double-frequency microstrip antenna |
| CN103346396B (en) * | 2013-07-11 | 2016-03-02 | 中国计量学院 | M shape open flume type double-frequency micro-strip antenna |
| CN113809529A (en) * | 2021-08-03 | 2021-12-17 | 北京邮电大学 | Dual-band impedance matching microstrip antenna and antenna array |
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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 |