CN202308312U - Ultra wideband antenna with stop-band characteristic - Google Patents
Ultra wideband antenna with stop-band characteristic Download PDFInfo
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- CN202308312U CN202308312U CN2011204510452U CN201120451045U CN202308312U CN 202308312 U CN202308312 U CN 202308312U CN 2011204510452 U CN2011204510452 U CN 2011204510452U CN 201120451045 U CN201120451045 U CN 201120451045U CN 202308312 U CN202308312 U CN 202308312U
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- wideband antenna
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- transmission line
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Abstract
The utility model discloses an ultra wideband antenna with stop-band characteristic. The ultra wideband antenna comprises a micro-strip substrate, a U-shaped radiation patch, an impedance matching input transmission line and a rectangular metal grounding plate, wherein the upper surface of the micro-strip substrate is provided with the U-shaped radiation patch and the impedance matching input transmission line; the lower end of the U-shaped radiation patch is connected with the impedance matching input transmission line; the U-shaped radiation patch comprises an elliptical groove, a U-shaped groove and a U-shaped slit groove; the U-shaped radiation patch is sequentially provided with the U-shaped slit groove, the U-shaped groove and the elliptical groove from bottom to top; and the lower surface of the micro-strip substrate is provided with the rectangular metal grounding plate corresponding to the impedance matching input transmission line. According to the ultra wideband antenna with stop-band characteristic, a grooving technology is adopted; the micro-strip substrate is made of teflon material; and the ultra wideband antenna has the advantages of low loss, low cost, superior cross polarization characteristic and radiation characteristic, simple structure and convenience for integration.
Description
Technical field
The utility model relates to antenna, relates in particular to a kind of ultra-wideband antenna with stopband characteristic.
Background technology
Along with microwave development of integration technology and space technology to the active demand of low profile antenna, launched in the world microstrip antenna extensively and is in depth studied, new construction and high performance microstrip antenna continue to bring out.Compare with common microwave antenna, microstrip antenna have thin profile, volume little, simple in structure, be fit to printed circuit technique produce in enormous quantities, can be conformal with carrier, be easy to integrated, make simple, be easy to realize the multiple advantage of dual polarization or the like.Micro-strip paster antenna is used with the not available advantage of antenna of other types such as its efficient is high, size is little, analytical method maturation widely.
Antenna is as an important wireless device in the communication system, and the quality of its performance will directly influence the performance of wireless device.Exactly because microstrip antenna has satisfied above-mentioned requirements and received people's attention deeply, application in recent years also more and more widely.The normal micro-strip array antenna of being made up of the microband paste unit that adopts of microstrip antenna is realized specific directivity.
For ultra-wideband antenna; Not only can satisfy the demand of each frequency range, and on performance, can be easier to satisfy, can make things convenient for the requirement of more field and filter function combined with ultra-wideband antenna; Therefore, press for and work out ultra-wideband microstrip antenna with filter function.
Summary of the invention
The utility model is big in order to overcome prior art loss in WLAN, and the low deficiency that gains provides a kind of ultra-wideband antenna with stopband characteristic.
In order to achieve the above object, the technical scheme of the utility model is following:
Ultra-wideband antenna with stopband characteristic comprises little belt substrate, U type radiation patch, impedance matching input transmission line, rectangular metal ground plate; The upper surface of little belt substrate is provided with U type radiation patch, impedance matching input transmission line; U type radiation patch lower end links to each other with impedance matching input transmission line; U type radiation patch comprises oval-shaped groove, U type groove, U type slit groove; U type radiation patch is provided with U type slit groove, U type groove, oval-shaped groove from top to bottom in order, and the lower surface of little belt substrate is provided with and the corresponding rectangular metal ground plate of impedance matching input transmission line.
Described little belt substrate is the teflon material.The length of described little belt substrate is 30mm～32mm, and wide is 24mm～25mm.The major radius of described oval-shaped groove is 8mm～8.5mm.The depth of groove of described U type groove is 6mm～7mm.The seam of described U type slit groove is wide to be 0.5mm～0.6mm.Described U type radiation patch adopts feed microstrip line to be connected with impedance matching input transmission line, and characteristic impedance is 50 Ω.The width of described impedance matching input transmission line is 4mm～4.2mm.The width of described rectangular metal ground plate is 9mm～10mm
.
Ultra-wideband antenna with stopband characteristic adopts fluting technology, and little belt substrate use teflon material, and it is low to have a loss, and cost is low, and cross polarization characteristics and radiation characteristic are good, and be simple in structure, is convenient to integrated.
Description of drawings
Fig. 1 is the structural front view with ultra-wideband antenna of stopband characteristic;
Fig. 2 is the structure vertical view with ultra-wideband antenna of stopband characteristic;
Fig. 3 is the standing-wave ratio figure with ultra-wideband antenna of stopband characteristic;
Fig. 4 is the E surface radiation directional diagram of ultra-wideband antenna when 3.2GHz with stopband characteristic;
Fig. 5 is the H surface radiation directional diagram of ultra-wideband antenna when 3.2GHz with stopband characteristic;
Fig. 6 is the E surface radiation directional diagram of ultra-wideband antenna when 5.6GHz with stopband characteristic;
Fig. 7 is the H surface radiation directional diagram of ultra-wideband antenna when 5.6GHz with stopband characteristic;
Fig. 8 is the E surface radiation directional diagram of ultra-wideband antenna when 10GHz with stopband characteristic;
Fig. 9 is the H surface radiation directional diagram of ultra-wideband antenna when 10GHz with stopband characteristic.
Embodiment
Like Fig. 1, shown in 2, the ultra-wideband antenna with stopband characteristic comprises little belt substrate 1, U type radiation patch 5, impedance matching input transmission line 6, rectangular metal ground plate 7; The upper surface of little belt substrate 1 is provided with U type radiation patch 5, impedance matching input transmission line 6; U type radiation patch 5 lower ends link to each other with impedance matching input transmission line 6; U type radiation patch 5 comprises oval recessed 2, U type groove 3, U type slit groove 4; U type radiation patch 5 is provided with U type slit groove 4, U type groove 3, oval-shaped groove 2 from top to bottom in order, and the lower surface of little belt substrate 1 is provided with and impedance matching input transmission line 6 corresponding rectangular metal ground plates 7.
Described little belt substrate 1 is the teflon material.The length of described little belt substrate 1 is 30mm～32mm, and wide is 24mm～25mm.The major radius of described oval-shaped groove 2 is 8mm～8.5mm.The depth of groove of described U type groove 3 is 6mm～7mm.The seam of described U type slit groove 4 is wide to be 0.5mm～0.6mm.Described U type radiation patch 5 adopts feed microstrip line to be connected with impedance matching input transmission line 6, and characteristic impedance is 50 Ω.The width of described impedance matching input transmission line 6 is 4mm～4.2mm.The width of described rectangular metal ground plate 7 is 9mm～10mm.。
Ultra-wideband antenna with stopband characteristic:
The selection dielectric constant is 2.65 the little belt substrate of teflon material, and thickness is 1.5 mm.The length of little belt substrate is 30mm, and wide is 25mm.The major radius of oval fluting is 8.3mm.The degree of depth of U type fluting is 6.5mm.The seam of U type slit fluting is wide to be 0.5mm.Y type radiation patch is connected with impedance matching input transmission line, adopts feed microstrip line, and characteristic impedance is 50 Ω.The width of impedance matching input transmission line is 4mm.The width of rectangular metal ground connection is 9.5mm.Each item performance index with ultra-wideband antenna of stopband characteristic adopt the R3767CH network analyzer to test the standing-wave ratio curve of gained such as accompanying drawing 3., VSWR visible by figure>the stopband frequency range of emulation in 2 o'clock and test is respectively 4.25～6.81GHz and 4.12～6.73GHz, and can meet the whole frequency range of ultra broadband frequency range standard 3.1GHz～10.6GHz fully, and have filter function.Fig. 4-9 is depicted as E face and the H face directional diagram of ultra-wideband antenna when 3.2GHz, 5.6GHz, 10GHz with stopband characteristic, and as can be seen from the figure, identical basically with theoretical " 8 " font result, effect is obvious.
Claims (9)
1. the ultra-wideband antenna with stopband characteristic is characterized in that comprising little belt substrate (1), U type radiation patch (5), impedance matching input transmission line (6), rectangular metal ground plate (7); The upper surface of little belt substrate (1) is provided with U type radiation patch (5), impedance matching input transmission line (6); U type radiation patch (5) lower end links to each other with impedance matching input transmission line (6); U type radiation patch (5) comprises oval-shaped groove (2), U type groove (3), U type slit groove (4); U type radiation patch (5) is provided with U type slit groove (4), U type groove (3), oval-shaped groove (2) from top to bottom in order, and the lower surface of little belt substrate (1) is provided with and impedance matching input transmission line (6) corresponding rectangular metal ground plates (7).
2. a kind of ultra-wideband antenna with stopband characteristic as claimed in claim 1 is characterized in that described little belt substrate (1) is the teflon material.
3. a kind of ultra-wideband antenna as claimed in claim 1 with stopband characteristic, the length that it is characterized in that described little belt substrate (1) is 30mm～32mm, wide is 24mm～25mm.
4. a kind of ultra-wideband antenna with stopband characteristic as claimed in claim 1, the major radius that it is characterized in that described oval-shaped groove (2) is 8mm～8.5mm.
5. a kind of ultra-wideband antenna with stopband characteristic as claimed in claim 1, the depth of groove that it is characterized in that described U type groove (3) is 6mm～7mm.
6. a kind of ultra-wideband antenna with stopband characteristic as claimed in claim 1 is characterized in that the seam of described U type slit groove (4) is wide and is 0.5mm～0.6mm.
7. a kind of ultra-wideband antenna with stopband characteristic as claimed in claim 1 is characterized in that described U type radiation patch (5) and impedance matching input transmission line (6) adopt feed microstrip line to be connected, and characteristic impedance is 50 Ω.
8. a kind of ultra-wideband antenna with stopband characteristic as claimed in claim 1 is characterized in that the width of described impedance matching input transmission line (6) is 4mm～4.2mm.
9. a kind of ultra-wideband antenna with stopband characteristic as claimed in claim 1, the width that it is characterized in that described rectangular metal ground plate (7) is 9mm～10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204510452U CN202308312U (en) | 2011-11-15 | 2011-11-15 | Ultra wideband antenna with stop-band characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204510452U CN202308312U (en) | 2011-11-15 | 2011-11-15 | Ultra wideband antenna with stop-band characteristic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202308312U true CN202308312U (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011204510452U Expired - Fee Related CN202308312U (en) | 2011-11-15 | 2011-11-15 | Ultra wideband antenna with stop-band characteristic |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219593A (en) * | 2013-04-07 | 2013-07-24 | 华南理工大学 | Planar ultra wide band filtering antenna adopting short circuit lead |
| CN103367898A (en) * | 2013-07-11 | 2013-10-23 | 中国计量学院 | Ultra wide band antler-shaped coplanar microstrip antenna |
| CN103579768A (en) * | 2013-11-07 | 2014-02-12 | 中国计量学院 | Bean-sprout-shaped single-frequency narrow-band micro-strip antenna |
| CN103794861A (en) * | 2014-01-18 | 2014-05-14 | 中国计量学院 | Oxhorn curve-shaped micro-strip antenna |
| CN112216971A (en) * | 2020-10-10 | 2021-01-12 | 辽宁工程技术大学 | Miniaturized double-trapped wave ultra-wideband antenna |
-
2011
- 2011-11-15 CN CN2011204510452U patent/CN202308312U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219593A (en) * | 2013-04-07 | 2013-07-24 | 华南理工大学 | Planar ultra wide band filtering antenna adopting short circuit lead |
| CN103219593B (en) * | 2013-04-07 | 2015-07-01 | 华南理工大学 | Planar ultra wide band filtering antenna adopting short circuit lead |
| CN103367898A (en) * | 2013-07-11 | 2013-10-23 | 中国计量学院 | Ultra wide band antler-shaped coplanar microstrip antenna |
| CN103367898B (en) * | 2013-07-11 | 2016-06-22 | 中国计量学院 | Ultra broadband Cornu Cervi shape coplanar microstrip antenna |
| CN103579768A (en) * | 2013-11-07 | 2014-02-12 | 中国计量学院 | Bean-sprout-shaped single-frequency narrow-band micro-strip antenna |
| CN103794861A (en) * | 2014-01-18 | 2014-05-14 | 中国计量学院 | Oxhorn curve-shaped micro-strip antenna |
| CN112216971A (en) * | 2020-10-10 | 2021-01-12 | 辽宁工程技术大学 | Miniaturized double-trapped wave ultra-wideband antenna |
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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: 20120704 Termination date: 20121115 |