CN202797267U - Ultra-wide band microstrip antenna - Google Patents
Ultra-wide band microstrip antenna Download PDFInfo
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- CN202797267U CN202797267U CN 201220298602 CN201220298602U CN202797267U CN 202797267 U CN202797267 U CN 202797267U CN 201220298602 CN201220298602 CN 201220298602 CN 201220298602 U CN201220298602 U CN 201220298602U CN 202797267 U CN202797267 U CN 202797267U
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Abstract
The utility model discloses an ultra-wide band microstrip antenna, which comprises a microstrip substrate, a radiation patch, an impedance matching input microstrip line, and a rectangular metal ground plate, wherein the radiation patch and the impedance matching input microstrip line are arranged on the upper surface of the microstrip substrate; a step-shaped patch, two circular grooves and an arc-shaped groove are sequentially arranged on the radiation patch from up to down; the bottom end of the radiation 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; the lower surface of the microstrip substrate is provided with the rectangular metal ground plate; and the bottom end of the rectangular metal ground plate is connected with the bottom end of the microstrip substrate. The ultra-wide band microstrip antenna in the working frequency band is stable in radiation performance, low in loss, low in cost, simple in structure and easy in manufacturing.
Description
Technical field
The utility model relates to antenna, relates in particular to a kind of ultra-wideband microstrip antenna.
Technical background
It is little, lightweight that microstrip antenna has a volume, and low section is made simply, and cost is low, and is easy of integration, realizes easily the plurality of advantages such as double frequency, multiband work, and therefore nearly more than ten years microstrip antenna has obtained widely research and development.Ultra-wideband Communication Technology (UWB, Ultra-wide Band) is a kind of great bandwidth radio communication technology with utmost point low power spectral density high speed transmission data in short distance.Super-broadband tech has is with roomy, the advantages such as transmission rate is high, strong interference immunity, therefore is widely used in the aspects such as communication, radar and military affairs.For compatibility and the system integration that realizes ultra-wideband antenna and other Radio Transmission Technology, need the Miniaturisation ultra-wideband antenna of design broadband, low cost, low-complexity.This just requires the size of antenna little, but the little integrated level of volume is high.Do not affect again antenna performance when reducing antenna size, this is a challenging job.But 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.
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 ultra-wideband 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 purpose of this utility model is in order to overcome the deficiency that the prior art frequency band is narrow, loss is large, a kind of ultra-wideband microstrip antenna to be provided.
In order to achieve the above object, the technical solution of the utility model is as follows:
Ultra-wideband microstrip antenna comprises little belt substrate, radiation patch, impedance matching input microstrip line, rectangular metal ground plate; Little belt substrate upper surface is provided with radiation patch and impedance matching input microstrip line, be provided with in turn from top to bottom stairstepping paster, two rounded groove and an arc-shaped groove on the radiation patch, the radiation patch bottom 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 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 40mm～42mm, and wide is 49mm～51mm.Described radiation patch is semicircle and stairstepping composite construction, and the radius of semicircular patch is 9mm～11mm, and the stairstepping paster is three-decker, and long is 19mm～20mm, and wide is 9mm～11mm.The radius of described rounded groove is 3mm～4mm; The exradius of arc-shaped groove is 7mm～8mm, and groove width is 0.5mm～1mm.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 3mm～4mm.The length of described rectangular metal ground plate is 40mm～42mm, and wide is 17mm～20mm.
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 ultra-wideband microstrip antenna front;
Fig. 2 is the structural representation at the ultra-wideband microstrip antenna back side;
Fig. 3 is ultra-wideband microstrip antenna insertion loss curve chart;
Fig. 4 is the antenna pattern of ultra-wideband microstrip antenna when 3.5GHz;
Fig. 5 is the antenna pattern of ultra-wideband microstrip antenna when 5.2GHz;
Fig. 6 is the antenna pattern of ultra-wideband microstrip antenna when 5.5GHz;
Fig. 7 is the antenna pattern of ultra-wideband microstrip antenna when 5.8GHz.
Embodiment
Ultra-wideband microstrip antenna comprises little belt substrate 1, radiation patch 2, impedance matching input microstrip line 6, rectangular metal ground plate 7; Little belt substrate 1 upper surface is provided with radiation patch 2 and impedance matching input microstrip line 6, be provided with in turn from top to bottom stairstepping paster 3, two rounded groove 4 and an arc-shaped groove 5 on the radiation patch 2, radiation patch 2 bottoms link to each other with impedance matching input microstrip line 6 one ends, and the other end of impedance matching input microstrip line 6 links to each other with the bottom of little belt substrate 1; Little belt substrate 1 lower surface is provided with rectangular metal ground plate 7, and the bottom of rectangular metal ground plate 7 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 40mm～42mm, and wide is 49mm～51mm.Described radiation patch 2 is semicircle and stairstepping composite construction, and the radius of semicircular patch is 9mm～11mm, and stairstepping paster 3 is three-decker, and long is 19mm～20mm, and wide is 9mm～11mm.The radius of described rounded groove 4 is 3mm～4mm; The exradius of arc-shaped groove 5 is 7mm～8mm, and groove width is 0.5mm～1mm.Described impedance matching input microstrip line 6 adopts feed microstrip line to be connected with radiation patch 2, and characteristic impedance is 50 Ω.The width of described impedance matching input microstrip line 6 is 3mm～4mm.The length of described rectangular metal ground plate 7 is 40mm～42mm, and wide is 17mm～20mm.
Ultra-wideband microstrip antenna:
Selecting dielectric constant is that 4.4 FR4 material is made little belt substrate, and thickness is 1.5mm.The length of little belt substrate is 41mm, and wide is 50mm.Radiation patch is semicircle and stairstepping composite construction, and the radius of semicircular patch is 10mm, and the stairstepping paster is three-decker, and long is 20mm, and wide is 10mm～11mm.The radius of rounded groove is 3mm; The exradius of arc-shaped groove 5 is 7.5mm, and groove width is 0.7mm.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 3.4mm.The length of rectangular metal ground plate is 41mm, and wide is 18mm.Use software that the radiation characteristics such as the insertion loss curve of ultra-wideband microstrip antenna and gain have been carried out simulated measurement, insertion loss curve such as Fig. 3 of the ultra-wideband microstrip antenna of gained.As seen from Figure 3, insertion loss can cover the whole frequency range of WLAN standard 3.5GHz section 3.30 ~ 3.80GHz, the whole frequency range of 5.2GHz section 5.15 ~ 5.35GHz, the whole frequency range of 5.5GHz section 5.25 ~ 5.85GHz and the whole frequency range of 5.8GHz section 5.725 ~ 5.85GHz fully less than-10dB in 3.09 ~ 8.62GHz scope.Fig. 4-Figure 7 shows that respectively antenna pattern and antenna pattern when 3.5GHz, 5.2GHz, 5.5GHz, 5.8GHz of ultra-wideband microstrip antenna, gain when frequency is 3.5GHz is 3.2dBi, the half power lobe width is 81.6 °, gain when frequency is 5.2GHz is 4.4dBi, the half power lobe width is 65.8 °, gain when frequency is 5.5GHz is 4.4dBi, the half power lobe width is 63 °, gain when frequency is 5.8GHz is 4.2dBi, and the half power lobe width is 60.9 °.
Claims (8)
1. a ultra-wideband microstrip antenna is characterized in that comprising little belt substrate (1), radiation patch (2), impedance matching input microstrip line (6), rectangular metal ground plate (7); Little belt substrate (1) upper surface is provided with radiation patch (2) and impedance matching input microstrip line (6), be provided with in turn from top to bottom stairstepping paster (3), two rounded groove (4) and an arc-shaped groove (5) on the radiation patch (2), radiation patch (2) bottom links to each other with impedance matching input microstrip line (6) one ends, and the other end of impedance matching input microstrip line (6) links to each other with the bottom of little belt substrate (1); Little belt substrate (1) lower surface is provided with rectangular metal ground plate (7), and the bottom of rectangular metal ground plate (7) links to each other with the bottom of little belt substrate (1).
2. a kind of ultra-wideband microstrip antenna as claimed in claim 1 is characterized in that described little belt substrate (1) is the FR4 material.
3. a kind of ultra-wideband microstrip antenna as claimed in claim 1, the length that it is characterized in that described little belt substrate (1) is 40mm～42mm, wide is 49mm～51mm.
4. a kind of ultra-wideband microstrip antenna as claimed in claim 1, it is characterized in that described radiation patch (2) is semicircle and stairstepping composite construction, the radius of semicircular patch is 9mm～11mm, and stairstepping paster (3) is three-decker, long is 19mm～20mm, and wide is 9mm～11mm.
5. a kind of ultra-wideband microstrip antenna as claimed in claim 1, the radius that it is characterized in that described rounded groove (4) is 3mm～4mm; The exradius of arc-shaped groove (5) is 7mm～8mm, and groove width is 0.5mm～1mm.
6. a kind of ultra-wideband microstrip antenna as claimed in claim 1 is characterized in that described impedance matching input microstrip line (6) and radiation patch (2) adopt feed microstrip line to be connected, and characteristic impedance is 50 Ω.
7. a kind of ultra-wideband microstrip antenna as claimed in claim 1 is characterized in that the width of described impedance matching input microstrip line (6) is 3mm～4mm.
8. a kind of ultra-wideband microstrip antenna as claimed in claim 1, the length that it is characterized in that described rectangular metal ground plate (7) is 40mm～42mm, wide is 17mm～20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220298602 CN202797267U (en) | 2012-06-25 | 2012-06-25 | Ultra-wide band microstrip antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220298602 CN202797267U (en) | 2012-06-25 | 2012-06-25 | Ultra-wide band microstrip antenna |
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| CN202797267U true CN202797267U (en) | 2013-03-13 |
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| CN 201220298602 Expired - Fee Related CN202797267U (en) | 2012-06-25 | 2012-06-25 | Ultra-wide band microstrip antenna |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346388A (en) * | 2013-07-09 | 2013-10-09 | 哈尔滨工业大学 | Ultra wide band monopole antenna |
| CN103794858A (en) * | 2014-01-18 | 2014-05-14 | 中国计量学院 | Symmetrical two-side-comb-shaped double-frequency coplane microstrip antenna |
| CN104466381A (en) * | 2014-12-19 | 2015-03-25 | 郑召文 | Step-shaped slotted ultra-wideband microstrip antenna |
| CN105244615A (en) * | 2015-11-04 | 2016-01-13 | 南京信息工程大学 | Ultra wide band transparent antenna |
| CN106876978A (en) * | 2015-12-14 | 2017-06-20 | 哈尔滨飞羽科技有限公司 | A kind of new monopole UWB antennas |
| CN106876996A (en) * | 2015-12-14 | 2017-06-20 | 佛山市东成西就智能科技有限公司 | A kind of small-sized microstrip antenna |
| CN109149097A (en) * | 2018-10-09 | 2019-01-04 | 南京信息工程大学 | A kind of wearable antenna designed using textile material and conductive fabric |
| CN111541008A (en) * | 2020-05-15 | 2020-08-14 | 东华大学 | Ultra-wideband antenna with double-trapped wave characteristic |
| CN113644424A (en) * | 2021-07-05 | 2021-11-12 | 山东师范大学 | Arc-shaped groove trapped wave monopole microstrip antenna based on ultra wide band signal |
-
2012
- 2012-06-25 CN CN 201220298602 patent/CN202797267U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346388A (en) * | 2013-07-09 | 2013-10-09 | 哈尔滨工业大学 | Ultra wide band monopole antenna |
| CN103794858A (en) * | 2014-01-18 | 2014-05-14 | 中国计量学院 | Symmetrical two-side-comb-shaped double-frequency coplane microstrip antenna |
| CN104466381A (en) * | 2014-12-19 | 2015-03-25 | 郑召文 | Step-shaped slotted ultra-wideband microstrip antenna |
| CN105244615A (en) * | 2015-11-04 | 2016-01-13 | 南京信息工程大学 | Ultra wide band transparent antenna |
| CN105244615B (en) * | 2015-11-04 | 2018-04-13 | 南京信息工程大学 | A kind of ultra wide band transparent antenna |
| CN106876978A (en) * | 2015-12-14 | 2017-06-20 | 哈尔滨飞羽科技有限公司 | A kind of new monopole UWB antennas |
| CN106876996A (en) * | 2015-12-14 | 2017-06-20 | 佛山市东成西就智能科技有限公司 | A kind of small-sized microstrip antenna |
| CN109149097A (en) * | 2018-10-09 | 2019-01-04 | 南京信息工程大学 | A kind of wearable antenna designed using textile material and conductive fabric |
| CN109149097B (en) * | 2018-10-09 | 2023-08-11 | 南京信息工程大学 | Wearable antenna designed by using textile material and conductive fabric |
| CN111541008A (en) * | 2020-05-15 | 2020-08-14 | 东华大学 | Ultra-wideband antenna with double-trapped wave characteristic |
| CN111541008B (en) * | 2020-05-15 | 2022-01-11 | 东华大学 | Ultra-wideband antenna with double-trapped wave characteristic |
| CN113644424A (en) * | 2021-07-05 | 2021-11-12 | 山东师范大学 | Arc-shaped groove trapped wave monopole microstrip antenna based on ultra wide band signal |
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| 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: 20130313 Termination date: 20130625 |