CN202662814U - Multi-slot coplanar ultra-wideband microstrip antenna - Google Patents
Multi-slot coplanar ultra-wideband microstrip antenna Download PDFInfo
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- CN202662814U CN202662814U CN2012202557779U CN201220255777U CN202662814U CN 202662814 U CN202662814 U CN 202662814U CN 2012202557779 U CN2012202557779 U CN 2012202557779U CN 201220255777 U CN201220255777 U CN 201220255777U CN 202662814 U CN202662814 U CN 202662814U
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- impedance matching
- microstrip line
- matching input
- wideband
- microstrip antenna
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Abstract
The utility model discloses a multi-slot coplanar ultra-wideband microstrip antenna. The microstrip antenna comprises a microstrip substrate, an inverted pit-shaped metal radiant panel, a radiant patch and an impedance matching input microstrip line, wherein the inverted pit-shaped metal radiant panel, the radiant patch and the impedance matching input microstrip line are arranged on the upper surface of the microstrip substrate; the rims of the inverted pit-shaped metal radiant panel are connected with the rims of the microstrip substrate; a pit is arranged 5-7mm from the top end of the microstrip substrate; the radiant patch is arranged in the pit; symmetric rectangular slots and a stepped slot are arranged at the top end of the radiant patch; the bottom end of the radiant patch 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 substrate; and evenly spaced gaps are arranged between the two ends of the inverted pit-shaped metal radiant panel and the two sides of the impedance matching input microstrip line. The working band has stable radiation characteristics, low loss, low cost and simple structure and is easy to make.
Description
Technical field
The utility model relates to antenna, relates in particular to the coplanar ultra-wideband microstrip antenna of a kind of many open flume types.
Technical background
Data transmission rate is high, loss is low owing to having for ultra-wideband communication system, receives increasing concern.From 2002, FCC (US-FCC) ratified, and since 3.1 ~ 10.6 GH z frequency ranges were used as Ultra-wideband Communication Technology, Chinese scholars had been carried out large quantity research to this.As one of ultra-wideband communication system important front end part, the design of ultra-wideband antenna is a basic noticeable problem.In all kinds of antennas, printed monopole antenna is little with its volume, be easy to the integrated characteristics of syntype shows good broadband character.Therefore, printed monopole antenna has broad application prospects in ultra-wideband communication system (3.1 ~ 10.6 GHz).
Although more existing ultra-wideband microstrip antennas energy wideband work on the market,, directional properties is poor, and loss is large, therefore satisfies the requirement of WLAN communication system in the urgent need to the array 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 utility model provides a kind of many open flume types coplanar ultra-wideband microstrip antenna in order to overcome the deficiency that prior art is narrow at the WLAN (wireless local area network) midband, loss is large.
In order to achieve the above object, the technical solution of the utility model is as follows:
The coplanar ultra-wideband microstrip antenna of many open flume types comprises little belt substrate, the radiation metal of falling dimple-shaped plate, radiation patch, impedance matching input microstrip line; Little belt substrate upper surface is provided with the radiation metal of falling dimple-shaped plate, radiation patch and impedance matching input microstrip line, the surrounding of the radiation metal of falling dimple-shaped plate links to each other with the surrounding of little belt substrate, the top 5mm of the little belt substrate of distance～7mm place is provided with pit, in pit, be provided with radiation patch, top end in radiation patch is provided with symmetrical rectangle fluting and stairstepping fluting, the bottom of radiation patch links to each other with impedance matching input microstrip line one end, the impedance matching input microstrip line other end links to each other with little belt substrate bottom, is provided with equidistant slit between the both sides of the dimple-shaped radiation metal of falling dimple-shaped plate two ends and impedance matching input microstrip line.
Described little belt substrate is the FR4 material.The length of described little belt substrate is 20mm～22mm, and wide is 25mm～27mm.The length of described radiation patch is 11mm～13mm, and wide is 8mm～9mm.The length of described pit is 18mm～20mm, and wide is 12mm～13mm.The length of described rectangle fluting is 0.2mm～0.5mm, and wide is 1mm～2mm.The upper base of described stairstepping fluting is long to be 3mm～4mm, the long 1mm～2mm that is that goes to the bottom, and the wide of the first ladder is 1mm～2mm, the wide 1mm～2mm that is of the second ladder and the 3rd ladder.Described impedance matching input microstrip line adopts feed microstrip line to be connected with radiation patch, and characteristic impedance is 50 Ω.The width of described impedance matching input microstrip line is 0.5mm～1mm.Equidistant slit between the both sides of the described dimple-shaped radiation metal of falling dimple-shaped plate two ends and impedance matching input microstrip line is 0.1mm～0.3mm.
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 structure chart of the coplanar ultra-wideband microstrip antenna of many open flume types;
Fig. 2 is the coplanar ultra-wideband microstrip antenna insertion loss of many open flume types curve chart;
Fig. 3 is the antenna pattern of the coplanar ultra-wideband microstrip antenna of many open flume types when 3GHz;
Fig. 4 is the antenna pattern of the coplanar ultra-wideband microstrip antenna of many open flume types when 5.8GHz;
Fig. 5 is the antenna pattern of the coplanar ultra-wideband microstrip antenna of many open flume types when 11GHz.
Embodiment
The coplanar ultra-wideband microstrip antenna of many open flume types comprises little belt substrate 1, the radiation metal of falling dimple-shaped plate 2, radiation patch 4, impedance matching input microstrip line 7; Little belt substrate 1 upper surface is provided with the radiation metal of falling dimple-shaped plate 2, radiation patch 4 and impedance matching input microstrip line 7, the surrounding of the radiation metal of falling dimple-shaped plate 2 links to each other with the surrounding of little belt substrate 1, the top 5mm of the little belt substrate 1 of distance～7mm place is provided with pit 3, in pit 3, be provided with radiation patch 4, top end in radiation patch 4 is provided with symmetrical rectangle fluting 6 and stairstepping fluting 5, the bottom of radiation patch 4 links to each other with impedance matching input microstrip line 7 one ends, impedance matching input microstrip line 7 other ends link to each other with little belt substrate 1 bottom, are provided with equidistant slit between the both sides of the dimple-shaped radiation metal of falling dimple-shaped plate 2 two ends and impedance matching input microstrip line 7.
Described little belt substrate 1 is the FR4 material.The length of described little belt substrate 1 is 20mm～22mm, and wide is 25mm～27mm.The length of described radiation patch 4 is 11mm～13mm, and wide is 8mm～9mm.The length of described pit 3 is 18mm～20mm, and wide is 12mm～13mm.The length of described rectangle fluting 6 is 0.2mm～0.5mm, and wide is 1mm～2mm.The upper base of described stairstepping fluting 5 is long to be 3mm～4mm, the long 1mm～2mm that is that goes to the bottom, and the wide of the first ladder is 1mm～2mm, the wide 1mm～2mm that is of the second ladder and the 3rd ladder.Described impedance matching input microstrip line 7 adopts feed microstrip line to be connected with radiation patch 4, and characteristic impedance is 50 Ω.The width of described impedance matching input microstrip line 7 is 0.5mm～1mm.Equidistant slit between the both sides of the described dimple-shaped radiation metal of falling dimple-shaped plate 2 two ends and impedance matching input microstrip line 7 is 0.1mm～0.3mm.
Embodiment 1
The coplanar ultra-wideband microstrip antenna of many open flume types:
Selecting dielectric constant is that 4.4 FR4 material is made little belt substrate, and thickness is 1.6 mm.The length of little belt substrate is 21mm, and wide is 26mm.Radiation patch is long to be 12mm, and wide is 8.5mm.The length of groove is 19mm, and wide is 12.5mm.The length of rectangle fluting is 0.25mm, and wide is 1mm.The upper base of stairstepping fluting is long to be 3mm, the long 1mm that is that goes to the bottom, and the wide of the first ladder is 1.5mm, the wide 1mm that is of the second ladder and the 3rd ladder.Impedance matching input microstrip line adopts feed microstrip line to be connected with radiation patch, and characteristic impedance is 50 Ω.The width of impedance matching input microstrip line is 0.6mm.The equidistant slit of the radiation metal of falling dimple-shaped plate and impedance matching input microstrip line is 0.2mm.Use software the radiation characteristics such as the insertion loss curve of the coplanar ultra-wideband microstrip antenna of many open flume types and gain to be carried out insertion loss curve such as Fig. 2 of the coplanar ultra-wideband microstrip antenna of many open flume types of simulated measurement gained.As seen from Figure 2, insertion loss fully can the requirement of covering ultra wideband frequency band less than-10dB in 3.1 ~ 11GHz scope.Fig. 3-Figure 5 shows that respectively antenna pattern and antenna pattern when 3GHz, 5.8GHz, 11 GHz of the coplanar ultra-wideband microstrip antenna of many open flume types, gain when frequency is 2.5GHz is 2.8dBi, the half power lobe width is 85.4 °, gain when frequency is 5.8 GHz is 3.3dBi, the half power lobe width is 73.2 °, gain when frequency is 11GHz is 5.2dBi, and the half power lobe width is 50.1 °.
Claims (10)
1. the coplanar ultra-wideband microstrip antenna of open flume type more than a kind is characterized in that comprising little belt substrate (1), the radiation metal of falling dimple-shaped plate (2), radiation patch (4), impedance matching input microstrip line (7); Little belt substrate (1) upper surface is provided with the radiation metal of falling dimple-shaped plate (2), radiation patch (4) and impedance matching input microstrip line (7), the surrounding of the radiation metal of falling dimple-shaped plate (2) links to each other with the surrounding of little belt substrate (1), the top 5mm of the little belt substrate of distance (1)～7mm place is provided with pit (3), in pit (3), be provided with radiation patch (4), top end in radiation patch (4) is provided with symmetrical rectangle fluting (6) and stairstepping fluting (5), the bottom of radiation patch (4) links to each other with impedance matching input microstrip line (7) one ends, impedance matching input microstrip line (7) other end links to each other with little belt substrate (1) bottom, is provided with equidistant slit between the both sides of the dimple-shaped radiation metal of falling dimple-shaped plate (2) two ends and impedance matching input microstrip line (7).
2. the coplanar ultra-wideband microstrip antenna of a kind of many open flume types as claimed in claim 1 is characterized in that described little belt substrate (1) is the FR4 material.
3. the coplanar ultra-wideband microstrip antenna of a kind of many open flume types as claimed in claim 1, the length that it is characterized in that described little belt substrate (1) is 20mm～22mm, wide is 25mm～27mm.
4. the coplanar ultra-wideband microstrip antenna of a kind of many open flume types as claimed in claim 1, the length that it is characterized in that described radiation patch (4) is 11mm～13mm, wide is 8mm～9mm.
5. the coplanar ultra-wideband microstrip antenna of a kind of many open flume types as claimed in claim 1, the length that it is characterized in that described pit (3) is 18mm～20mm, wide is 12mm～13mm.
6. the coplanar ultra-wideband microstrip antenna of a kind of many open flume types as claimed in claim 1 is characterized in that the length of described rectangle fluting (6) is 0.2mm～0.5mm, and wide is 1mm～2mm.
7. the coplanar ultra-wideband microstrip antenna of a kind of many open flume types as claimed in claim 1, long 3mm～the 4mm of being of upper base that it is characterized in that described stairstepping fluting (5), the length of going to the bottom is 1mm～2mm, and the wide of the first ladder is 1mm～2mm, the wide 1mm～2mm that is of the second ladder and the 3rd ladder.
8. the coplanar ultra-wideband microstrip antenna of a kind of many open flume types as claimed in claim 1 is characterized in that described impedance matching input microstrip line (7) and radiation patch (4) adopt feed microstrip line to be connected, and characteristic impedance is 50 Ω.
9. the coplanar ultra-wideband microstrip antenna of a kind of many open flume types as claimed in claim 1 is characterized in that the width of described impedance matching input microstrip line (7) is 0.5mm～1mm.
10. the coplanar ultra-wideband microstrip antenna of a kind of many open flume types as claimed in claim 1 is characterized in that the equidistant slit that the described dimple-shaped radiation metal of falling dimple-shaped plate (2) two ends and impedance matching are inputted between the both sides of microstrip line (7) is 0.1mm～0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202557779U CN202662814U (en) | 2012-06-01 | 2012-06-01 | Multi-slot coplanar ultra-wideband microstrip antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012202557779U CN202662814U (en) | 2012-06-01 | 2012-06-01 | Multi-slot coplanar ultra-wideband microstrip antenna |
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| CN202662814U true CN202662814U (en) | 2013-01-09 |
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| CN2012202557779U Expired - Fee Related CN202662814U (en) | 2012-06-01 | 2012-06-01 | Multi-slot coplanar ultra-wideband microstrip antenna |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103367899A (en) * | 2013-07-11 | 2013-10-23 | 中国计量学院 | Flower-shaped coplanar ultra-wideband microstrip antenna |
| CN103618136A (en) * | 2013-11-07 | 2014-03-05 | 中国计量学院 | Ring-encircled wideband coplanar antenna |
| CN104993232A (en) * | 2015-07-09 | 2015-10-21 | 宁波成电泰克电子信息技术发展有限公司 | Low-profile dual-frequency antenna |
| CN106299612A (en) * | 2016-08-05 | 2017-01-04 | 天津大学 | A kind of monopole antenna based on flexible wearable application |
-
2012
- 2012-06-01 CN CN2012202557779U patent/CN202662814U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103367899A (en) * | 2013-07-11 | 2013-10-23 | 中国计量学院 | Flower-shaped coplanar ultra-wideband microstrip antenna |
| CN103367899B (en) * | 2013-07-11 | 2016-12-28 | 中国计量学院 | Flower-shaped coplanar ultra-wideband microstrip antenna |
| CN103618136A (en) * | 2013-11-07 | 2014-03-05 | 中国计量学院 | Ring-encircled wideband coplanar antenna |
| CN104993232A (en) * | 2015-07-09 | 2015-10-21 | 宁波成电泰克电子信息技术发展有限公司 | Low-profile dual-frequency antenna |
| CN104993232B (en) * | 2015-07-09 | 2018-04-17 | 宁波成电泰克电子信息技术发展有限公司 | A kind of low section dual-band antenna |
| CN106299612A (en) * | 2016-08-05 | 2017-01-04 | 天津大学 | A kind of monopole antenna based on flexible wearable application |
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| GR01 | Patent grant | ||
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Granted publication date: 20130109 Termination date: 20130601 |