CN104733842B - A kind of double trap UWB antennas - Google Patents
A kind of double trap UWB antennas Download PDFInfo
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- CN104733842B CN104733842B CN201510088555.0A CN201510088555A CN104733842B CN 104733842 B CN104733842 B CN 104733842B CN 201510088555 A CN201510088555 A CN 201510088555A CN 104733842 B CN104733842 B CN 104733842B
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- 230000005855 radiation Effects 0.000 claims abstract description 57
- 239000000758 substrate Substances 0.000 claims description 33
- 239000002184 metal Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 150000001336 alkenes Chemical class 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 24
- 238000010586 diagram Methods 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention discloses a kind of double trap UWB antennas,Mainly two ladder type grooves are provided with micro-strip radiation patch stub end so that micro-strip radiation patch axis is symmetrical,Each ladder type groove is by first level groove,Second level trough and vertical channel composition,First level groove and the second level trough equal length and both length sums are less than the length of vertical channel,The first level groove left side edge of left side ladder type groove overlaps with micro-strip radiation patch left side edge,The first level groove right side edge of right side ladder type groove overlaps with micro-strip radiation patch right side edge,A semiclosed endless groove is provided with the small head end of micro-strip radiation patch,Each ladder type groove and the length of semiclosed endless groove are the half wavelength or quarter-wave of institute's rejection band centre frequency,The present invention can realize ultra-wideband communications and the compatible communication for coordination of mutual interference communication system.
Description
Technical field
The present invention relates to a kind of planar printed-antenna, more particularly to a kind of double trap UWB antennas.
Background technology
Super-broadband tech is a kind of new wireless communication technology, solves the relevant biography of puzzlement conventional wireless techniques for many years
The great difficult problem of aspect is broadcast, it has, and insensitive to channel fading, transmission signal power spectral density is low, low interception capability, system
Complexity is low, can provide to centimetre positioning precision the advantages that.Since FCC in 2002（FCC）By 3.1-
10.6GHz ultra wideband frequency incorporates business frequency range into, super-wide-band flat antenna due to its small volume, with wide, certain radiation
The advantages that efficiency, omnidirectional radiation characteristic, simple manufacture craft, low cost, easy of integration and high transfer rate, becomes communication system
The main direction of studying of system.But due to existing IEEE 802.11a WLANs（WLAN）, worldwide interoperability for microwave accesses
（WiMAX）With the C-band for satellite communication and X-band also in the range of ultra wideband frequency, make ultra-wideband communications narrow with these
Band communication system interferes, and has a strong impact on the communication quality of respective communication system.In order to effectively suppress ultra-wideband communications and this
Interfering with each other between a little communication systems, in traditional radio ultra wide band system application, radio ultra wide band system can utilize wave filter to filter
Except the interference of these frequency ranges.However, the use of wave filter will increase the complexity of radio ultra wide band system, increase production cost, together
When can not possibly be unrestrictedly by subminaturization by antenna and wave filter.
Notification number is that the double trap antennas of the B denominations of invention ultra wide bands of CN 102790266 disclose a kind of double traps of ultra wide band
Antenna, it includes medium substrate, co-planar waveguide ground plane, micro-strip radiation patch and coplanar waveguide feeder line；Described co-planar waveguide
Ground plane, micro-strip radiation patch and coplanar waveguide feeder line are all fixed on medium substrate upper surface；Described micro-strip radiation patch position
In the middle part of medium substrate, coplanar waveguide feeder line is guided micro-strip radiation patch into from medium substrate edge and is connected thereto, coplanar ripple
Ground is connected to be made up of two panels rectangular metal planar structure, be individually fixed in coplanar waveguide feeder line both sides and with micro-strip radiation patch
With gap.
The content of the invention
The technical problem to be solved in the present invention is：There is provided a kind of structure unlike the prior art is simple, be easily achieved plus
Work cost is low, compatible FCC ultra wide bands working band, double trap UWB antennas with impedance operator, has both avoided ultra-wide band logical
Letter and existing IEEE 802.11a WLANs（WLAN）, worldwide interoperability for microwave accesses（WiMAX）With the C for satellite communication
The narrow-band communication system such as wave band and X-band interferes, and improves the performance of ultra-wideband communication system and does not improve cost.
Technical scheme provided by the invention is：A kind of double trap UWB antennas, including medium substrate, ground plane, micro-strip
Radiation patch and microstrip feed line, micro-strip radiation patch and microstrip feed line are fixed on the front of medium substrate, and microstrip feed line is from medium
Substrate edges are guided micro-strip radiation patch into and are connected, and micro-strip radiation patch is in " convex " font, in micro-strip radiation patch stub end
Two ladder type grooves are provided with so that micro-strip radiation patch axis is symmetrical, each ladder type groove is by first level groove, the second water
Rise as high as the banks and formed with vertical channel, first level groove is close to the small head end of micro-strip radiation patch, and the second level trough is away from micro-strip radiation patch
Small head end, first level groove is parallel with the second level trough, and vertical channel is between first level groove and the second level trough, vertical channel
It is connected with first level groove and the second level trough, first level groove and the second level trough equal length and both length sums are less than
The length of vertical channel, the first level groove left side edge of left side ladder type groove overlap with micro-strip radiation patch left side edge, right side
The first level groove right side edge of ladder type groove overlaps with micro-strip radiation patch right side edge, is set in the small head end of micro-strip radiation patch
There is a semiclosed endless groove, the length of each ladder type groove and semiclosed endless groove is the two of institute's rejection band centre frequency
/ mono- wavelength or quarter-wave, ground plane is metal flat structure, and is fixed on the reverse side of medium substrate.
Further, semiclosed endless groove is symmetrical on micro-strip radiation patch axis, semiclosed ring-type channel opening direction
Micro-strip radiation patch stub end and A/F are 2-4 times of semiclosed endless groove groove width.This be characterized in by adjust groove width and
Extended distance can control institute's rejection band width.
Further, semiclosed endless groove is semiclosed rectangular ring groove or semi-enclosed " C " shape endless groove.
Further, ground plane is symmetrical on medium substrate axis, in medium substrate axis and micro-strip radiation patch
Axis overlaps, left and right lateral edges and the medium substrate left and right sides coincident of ground plane.
Further, a rectangular aperture groove is set on ground plane, middle rectangular aperture groove on medium substrate axisymmetrical,
The opening direction of rectangular aperture groove is directed towards micro-strip radiation patch stub end.Fluting causes antenna in the steady of high frequency treatment impedance matching
It is qualitative to have good improvement.
Further, medium substrate is polytetrafluoroethylene (PTFE) material, and relative dielectric constant is 2~8, its dielectric loss angle tangent
Value is not more than 10-3.This structure is typical media substrate, has been advantageously implemented ultra wide band impedance bandwidth.
Compared with prior art, the present invention is simple in construction, can be achieved using printed circuit board process, planar dimension is compact
It is easy to integrate with Wireless Telecom Equipment, realizes ultra wide band impedance bandwidth, utilizes double Z-shaped line of rabbet joint gaps and the semiclosed ring-type line of rabbet joint
Gap realizes two trap wave points in impedance bandwidth respectively, by adjustment tank structure snd size, trap wave point is located in ultra wide band frequency band
Mutual interference frequency, it is set to obstruct existing IEEE 802.11a WLANs（WLAN）, worldwide interoperability for microwave accesses（WiMAX）With with
Wireless signal on the narrow band communication frequency such as the C-band of satellite communication and X-band, realizes ultra-wideband communications and these narrow bandpass
The compatible communication for coordination of letter system, the present invention implement simple, technical maturity, and automaticity height, low production cost, it should
It is wider with scope.
Brief description of the drawings
Fig. 1 a, Fig. 1 b are the front elevation of the embodiment of the present invention, reverse side figure respectively.
Fig. 2 is the standing-wave ratio curve map of the embodiment of the present invention.
Fig. 3 is directional diagram of the embodiment of the present invention in 3.1GHz.
Fig. 4 is directional diagram of the embodiment of the present invention in 4.5GHz.
Fig. 5 is directional diagram of the embodiment of the present invention in 8GHz.
Embodiment
The present invention is further illustrated with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1 a, 1 b, a kind of double trap UWB antennas, including medium substrate 1, ground plane 3, micro-strip radiation patch
Piece 2 and microstrip feed line 4, micro-strip radiation patch 2 and microstrip feed line 4 are fixed on the front of medium substrate 1, and microstrip feed line 4 is from medium
The edge of substrate 1 is guided micro-strip radiation patch 2 into and is connected, and micro-strip radiation patch 2 is in " convex " font, big in micro-strip radiation patch 2
Head end is provided with two ladder type grooves 21 so that the axis of micro-strip radiation patch 2 is symmetrical, and each ladder type groove 21 is by first level
Groove, the second level trough and vertical channel composition, first level groove is close to 2 small head end of micro-strip radiation patch, and the second level trough is away from micro-
Band 2 small head end of radiation patch, first level groove is parallel with the second level trough, and vertical channel is in first level groove and the second level trough
Between, the one end of vertical channel is connected with first level groove one end, the other end of vertical channel and the second level trough one end
Connection, first level groove and the second level trough equal length and both length sums are less than the length of vertical channel, it is preferred that first
Level trough, the second level trough are equal with the groove width of vertical channel, the first level groove left side edge and micro-strip of left side ladder type groove
The left side edge of radiation patch 2 overlaps, first level groove right side edge and the right side edge of micro-strip radiation patch 2 of right side ladder type groove
Overlap, a semiclosed endless groove 22, each ladder type groove 21 and semiclosed endless groove are provided with 2 small head end of micro-strip radiation patch
Length 22 be institute's rejection band centre frequency half wavelength or quarter-wave, wherein institute's rejection band is theoretical
On be all frequency bands of covering, it is preferred that institute's rejection band is existing IEEE 802.11a WLANs WLAN, Worldwide Interoperability for Microwave is mutual
Couple into（WiMAX）With the C-band and the frequency band of X-band for satellite communication, ground plane 3 is metal flat structure, and fixed
In in the reverse side central region of the reverse side of medium substrate 1, especially medium substrate 1, or the reverse side of medium substrate 1 with micro-strip present
The opposite region of line 4.Preferably, semiclosed endless groove 22 is symmetrical on the axis of micro-strip radiation patch 2, semiclosed endless groove 22
It is 2-4 times of the semiclosed groove width of endless groove 22 to be open towards the stub end of micro-strip radiation patch 2 and A/F, semiclosed endless groove
22 can be semiclosed rectangular ring groove or semi-enclosed " C " shape endless groove.
Preferably, ground plane 3 is symmetrical on the axis of medium substrate 1, in medium substrate axis and micro-strip radiation patch
Axis overlaps, left and right lateral edges and the left and right sides coincident of medium substrate 1 of ground plane 3.A rectangle is set to open on ground plane 3
Mouth groove 31, rectangular aperture groove 31 are directed towards micro-strip radiation on medium substrate axisymmetrical, the opening direction of rectangular aperture groove 31
The stub end of paster 2.Medium substrate 1 is polytetrafluoroethylene (PTFE) material, and relative dielectric constant is 2~8, and its dielectric loss angle tangent value is not
More than 10-3。
Fig. 2 is the standing-wave ratio datagram of the embodiment of the present invention, it can be seen that antenna impedance bandwidth meets FCC from accompanying drawing 2
Ultra-wideband communications requirement, and antenna sets two trap wave points, can be effectively isolated under this frequency range in 4GHz, 5.5GHz respectively
WiMAX, WLAN signal and C-band signal, can be with WiMAX, WLAN thereby using the ultra-wideband communication devices of this antenna
Communication equipment communication for coordination, complementation interference.Fig. 3, Fig. 4, Fig. 5 are respectively the working frequency points directional diagram of the embodiment of the present invention, it is seen that
This antenna directivity is good, can meet the needs of user.
Claims (4)
1. a kind of double trap UWB antennas, including medium substrate（1）, ground plane（3）, micro-strip radiation patch（2）Presented with micro-strip
Line（4）, micro-strip radiation patch（2）And microstrip feed line（4）It is fixed on medium substrate（1）Front, microstrip feed line（4）From medium base
Plate（1）Micro-strip radiation patch is guided at edge into（2）And it is connected, it is characterised in that micro-strip radiation patch（2）In " convex " font,
Micro-strip radiation patch（2）Stub end is with micro-strip radiation patch（2）Axis is symmetrical to be provided with two ladder type grooves（21）, each
Ladder type groove（21）It is made up of first level groove, the second level trough and vertical channel, first level groove is close to micro-strip radiation patch（2）
Small head end, the second level trough is away from micro-strip radiation patch（2）Small head end, first level groove is parallel with the second level trough, vertical channel
Between first level groove and the second level trough, vertical channel is connected with first level groove and the second level trough, first level groove
With the second level trough equal length and both length sums are less than the length of vertical channel, left side ladder type groove（21）First level
Groove left side edge and micro-strip radiation patch（2）Left side edge overlaps, right side ladder type groove（21）First level groove right side edge
With micro-strip radiation patch（2）Right side edge overlaps, in micro-strip radiation patch（2）Small head end is provided with a semiclosed endless groove
（22）, semiclosed endless groove（22）For semiclosed rectangular ring groove or semi-enclosed " C " shape endless groove, semiclosed endless groove
（22）On micro-strip radiation patch（2）Axis is symmetrical, semiclosed endless groove（22）It is open towards micro-strip radiation patch（2）Major part
Hold and A/F is semiclosed endless groove（22）2-4 times of groove width, each ladder type groove（21）With the length of semiclosed endless groove
Degree（22）It is the half wavelength or quarter-wave of institute's rejection band centre frequency, ground plane（3）For metal flat
Structure, and it is fixed on medium substrate（1）Reverse side.
A kind of 2. double trap UWB antennas as claimed in claim 1, it is characterised in that the ground plane（3）On medium
Substrate（1）Axis is symmetrical, and medium substrate axis overlaps with micro-strip radiation patch axis, ground plane（3）Left and right side
Edge and medium substrate（1）Left and right sides coincident.
3. a kind of double trap UWB antennas as claimed in claim 1, it is characterised in that in ground plane（3）One square of upper setting
Shape open slot（31）, rectangular aperture groove（31）On medium substrate axisymmetrical, rectangular aperture groove（31）Opening direction be court
To micro-strip radiation patch（2）Stub end.
A kind of 4. double trap UWB antennas as claimed in claim 3, it is characterised in that medium substrate（1）For polytetrafluoroethyl-ne
Alkene material, relative dielectric constant are 2~8, and its dielectric loss angle tangent value is not more than 10-3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510088555.0A CN104733842B (en) | 2015-02-26 | 2015-02-26 | A kind of double trap UWB antennas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510088555.0A CN104733842B (en) | 2015-02-26 | 2015-02-26 | A kind of double trap UWB antennas |
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| Publication Number | Publication Date |
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| CN104733842A CN104733842A (en) | 2015-06-24 |
| CN104733842B true CN104733842B (en) | 2018-02-06 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110459866B (en) * | 2019-08-09 | 2021-04-06 | 武汉慧联无限科技有限公司 | Slot structure notch antenna and gateway equipment with same |
| CN110474161A (en) * | 2019-09-29 | 2019-11-19 | 集美大学 | A kind of ultra-wideband antenna of gap loaded microstrip structure |
| CN112993574A (en) * | 2020-12-25 | 2021-06-18 | 煤炭科学研究总院 | Ultra-wideband monopole antenna with small double-trapped wave characteristic |
| CN117136471A (en) * | 2022-02-18 | 2023-11-28 | 京东方科技集团股份有限公司 | Ultra-wideband antenna structure and electronic equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101164199A (en) * | 2005-04-26 | 2008-04-16 | 株式会社Emw天线 | Ultra-wideband antenna having a band notch characteristic |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100665007B1 (en) * | 2004-11-15 | 2007-01-09 | 삼성전기주식회사 | Ultra wide band internal antenna |
| KR100880584B1 (en) * | 2007-08-21 | 2009-01-30 | 한양대학교 산학협력단 | Ultra wide-band anntena with band-stop spur-line |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101164199A (en) * | 2005-04-26 | 2008-04-16 | 株式会社Emw天线 | Ultra-wideband antenna having a band notch characteristic |
Non-Patent Citations (1)
| Title |
|---|
| 小型化超宽带天线的设计;王燕;《中国优秀硕士学位论文全文数据库 信息科技辑》;20140115(第1期);正文第29-46页 * |
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| CN104733842A (en) | 2015-06-24 |
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Effective date of registration: 20230117 Address after: Room 1201, Unit 2, Building 10, No. 1, Qingliangmen Street, Gulou District, Nanjing City, Jiangsu Province, 210000 Patentee after: Jin Yongcheng Address before: 210000 No. 99, Wenlan Road, Xianlin University City, Nanjing, Jiangsu Province Patentee before: NANJING College OF INFORMATION TECHNOLOGY |
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Effective date of registration: 20231114 Address after: 6-1, No. 245 Jiaoshan Road, Jingkou District, Zhenjiang City, Jiangsu Province, 212000 Patentee after: Jiangsu Langke Power Technology Co.,Ltd. Address before: Room 1201, Unit 2, Building 10, No. 1, Qingliangmen Street, Gulou District, Nanjing City, Jiangsu Province, 210000 Patentee before: Jin Yongcheng |