CN207611865U - A kind of small capacity double trap UWB antenna - Google Patents
A kind of small capacity double trap UWB antenna Download PDFInfo
- Publication number
- CN207611865U CN207611865U CN201721665257.4U CN201721665257U CN207611865U CN 207611865 U CN207611865 U CN 207611865U CN 201721665257 U CN201721665257 U CN 201721665257U CN 207611865 U CN207611865 U CN 207611865U
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- radiating element
- impedance matching
- matching box
- medium substrate
- feed line
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- 239000000758 substrate Substances 0.000 claims abstract description 30
- 230000005855 radiation Effects 0.000 claims description 8
- 230000005404 monopole Effects 0.000 description 7
- 238000004891 communication Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 241000826860 Trapezium Species 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
Abstract
A kind of small capacity double trap UWB antenna of the utility model, including medium substrate, radiating element, impedance matching box, microstrip feed line and ground plane, the medium substrate back bottom is printed with ground plane, the medium substrate front is printed with radiating element, impedance matching box and microstrip feed line, radiating element is connected with impedance matching box, impedance matching box is connected with microstrip feed line, radiating element is at the positive top of medium substrate, impedance matching box is in the underface of radiating element, and microstrip feed line is in the underface of impedance matching box；The radiating element opens that there are two C-channels to cut the polygonal shape that the right angled triangle in lower left, lower right and upper right side is formed by rectangle in the middle part of radiating element；The shape of the impedance matching box is rectangle, and two C-channels are arranged by axial symmetry of straight line where impedance matching box.The antenna has the interference that wireless lan signal at worldwide interoperability for microwave accesses signal and 5.5GHz at 3.5GHz can be effectively eliminated there are two trap wave band at 3.5GHz, 5.5GHz.
Description
Technical field
The utility model belongs to wireless communication technology field more particularly to a kind of small capacity double trap UWB antenna.
Background technology
With the high speed development of present wireless communication system, people to data transmission rates demands in wireless communication increasingly
Height, this also requires the bandwidth of channel more and more wider, and then requires the bandwidth of operation of antenna more and more wider, this broad-band antenna made
Working performance cannot meet requirement of the people to message transmission rate in wireless communication；Since Federal Communications Committee will
3.1GHz-10.6GHz is named as ultra wide band, and to its book of issuing license after, ultra-wideband antenna causes many research people
The attention of member.
Currently in order to realizing ultra-wideband antenna, monopole patch antenna technical is generally used, this method is to be easiest to reality
Existing.For monopole mount technology, principle is exactly the monopole that a patch constitutes multiple and different working frequency range, the patch made
Piece has the working frequency range of ultra wide band.For example, HefiliaAsokan is in paper《Inductive loaded compact
monopole antenna for ultra-wideband applications》In propose a kind of new structural ultra wide band
Antenna is connected using by three monopole patches by lumped inductance, and 2.85GHz1- can be operated in by successfully realizing
The ultra-wideband antenna of 10.6GHz band limits；Publication No. is a kind of miniaturization based on EBG of patent disclosure of CN106935967A
Double trap UWB antennas, which uses EBG structures, bandwidth of operation 3GHz-12GHz, and has trap at 5.5GHz
Wave band, but these antenna still there is be easy by (WIMAX) signal of worldwide interoperability for microwave accesses 3.5GHz at
At 5.5GHz the problems such as the interfering, is complicated of wireless lan signal, trap wide waveband.
Utility model content
The purpose of this utility model is to provide a kind of irregular polygon patch using structure novel as radiation
Unit, and open inside radiating element that there are two C-channels, and impedance matching box is connected to immediately below radiating element, make day
Line has the bandwidth of operation of ultra wide band, and there are two trap wave bands for tool at 3.5GHz, 5.5GHz, can effectively eliminate
At 3.5GHz at worldwide interoperability for microwave accesses (WIMAX) signal and 5.5GHz WLAN (WLAN) signal interference.
The utility model adopts the following technical solution：
A kind of small capacity double trap UWB antenna, including medium substrate, radiating element, microstrip feed line and ground plane, it is described
Medium substrate back up has ground plane, ground plane to be printed with spoke in the bottom at the medium substrate back side, the medium substrate front
Penetrate unit and microstrip feed line, it is characterised in that：The antenna further includes impedance matching box, and the impedance matching box is printed on medium base
The front of plate, radiating element are connected with impedance matching box, and impedance matching box is connected with microstrip feed line, and radiating element is in medium substrate
Positive top, impedance matching box is in the underface of radiating element, and microstrip feed line is in the underface of impedance matching box；
The radiating element for cut by rectangle the right angled triangle in lower left, lower right and upper right side formed it is polygon
Shape shape, opens that there are two C-channels in the middle part of radiating element；The shape of the impedance matching box is rectangle, and two C-channels are with impedance
Straight line is arranged for axial symmetry where adaptation；The both upper ends thereof of the ground plane generally rectangle, rectangle has corner cut structure.
Compared with prior art, the advantageous effect of the utility model antenna is：
The utility model by using irregular shape radiating element, and the underface of radiating element connect impedance
Orchestration makes the working band of antenna meet the ultra wide band characteristic of 3.1GHz-10.6GHz, and bandwidth of operation ratio 3.1GHz-
10.6GHz is wider；Two C-channels are opened up inside radiating element, and antenna is made trap wave band occur；By the length for changing C-channel
Degree, can adjust the position of trap；Antenna structure is novel, simple, small, at low cost.
Description of the drawings
Fig. 1 is a kind of positive structure schematic of embodiment of the utility model small capacity double trap UWB antenna.
Fig. 2 is a kind of structure schematic diagram of embodiment of the utility model small capacity double trap UWB antenna.
Fig. 3 is the return loss plot figure of the small capacity double trap UWB antenna of the utility model embodiment 1.
Fig. 4 is the voltage standing wave ratio curve graph of the small capacity double trap UWB antenna of the utility model embodiment 1.
Fig. 5 is the antenna pattern of the small capacity double trap UWB antenna in 4.5GHz of the utility model embodiment 1.
Fig. 6 is the antenna pattern of the small capacity double trap UWB antenna in 6.5GHz of the utility model embodiment 1.
Fig. 7 is the antenna pattern of the small capacity double trap UWB antenna in 9GHz of the utility model embodiment 1.
In Fig. 1,1. medium substrates, 2. radiating elements, 3. right angled triangles, 4.C shapes slot, 5. impedance matching boxs, 6. micro-strips
Feeder line, 7. ground planes, 8. corner cut structures.
Specific implementation mode
With reference to embodiment and attached drawing, the utility model is described in further detail.
The utility model small capacity double trap UWB antenna (abbreviation antenna, referring to Fig. 1-2), including medium substrate 1, radiation
Unit 2, microstrip feed line 6, impedance matching box 5 and ground plane 7, the medium substrate back up have ground plane, ground plane being situated between
The bottom of matter substrate back, the medium substrate front are printed with radiating element and microstrip feed line, the impedance matching box printing
In the front of medium substrate, radiating element is connected with impedance matching box, and impedance matching box is connected with microstrip feed line, and radiating element exists
The positive top of medium substrate, impedance matching box is in the underface of radiating element, and microstrip feed line is in the underface of impedance matching box；
The radiating element for cut by rectangle the right angled triangle 3 in lower left, lower right and upper right side formed it is more
Side shape shape, opens that there are two C-channels 4 in the middle part of radiating element；The shape of the impedance matching box be rectangle, two C-channels with
Straight line is arranged for axial symmetry where impedance matching box；The both upper ends thereof of the ground plane generally rectangle, rectangle has corner cut knot
Structure 8.
Above-mentioned small capacity double trap UWB antenna, the width of described two C-channels is equal, length differs, two C-channels
Notch is positioned opposite, and long C-channel is located at the lower section of short C-channel.
Above-mentioned small capacity double trap UWB antenna, the geomery of three right angled triangles cut on the radiating element
Identical, two right angled triangles for being located at lower left and lower right are symmetrical by axis of impedance matching box, be located at lower right with
Two right angled triangles in upper right side are in be arranged symmetrically up and down.
The shape of above-mentioned small capacity double trap UWB antenna, the corner cut structure on the ground plane is right angle trigonometry shape, square
Shape, right-angled trapezium, the corner cut structure cannot be round corner cut.
Above-mentioned small capacity double trap UWB antenna, two right-angle sides of the right angled triangle cut on the radiating element
Length ratio is 7:6.5, a right-angle side length of right angled triangle and the ratio of radiating element total length are 6.5:20, right angled triangle
Another right angle edge lengths and radiating element overall width ratio be 7:22.
Radiating element, impedance matching box, ground plane and the microstrip feed line of the utility model antenna use ash in fig. 1 and 2
Color table shows that the shape of antenna can be obtained by corrosion.
Embodiment 1
The present embodiment small capacity double trap UWB antenna includes medium substrate 1, radiating element 2, microstrip feed line 6, impedance
Orchestration 5 and ground plane 7, the medium substrate back up have a ground plane, and ground plane is described in the bottom at the medium substrate back side
Medium substrate front is printed with radiating element and microstrip feed line, and the impedance matching box is printed on the front of medium substrate, radiation
Unit is connected with impedance matching box, and impedance matching box is connected with microstrip feed line, and radiating element is in the positive top of medium substrate, resistance
Anti- adaptation is in the underface of radiating element, and microstrip feed line is in the underface of impedance matching box；
The shape of medium substrate 1 is rectangle in the present embodiment, and material is polytetrafluoroethylene (PTFE) (FR4), and dielectric constant is
4.4, the size of medium substrate 1 is 31mm × 22mm × 1.5mm.
The length and width dimensions of the impedance matching box are 7.5mm × 2mm, are rectangular configuration, and impedance matching box can make antenna
Input impedance closer to some values (such as：50 Europe).
The radiating element for cut by rectangle the right angled triangle 3 in lower left, lower right and upper right side formed it is more
Side shape shape, the size of three right angled triangles 3 is identical, and two right angle edge lengths are respectively gh=7mm, gf=6.5mm, bevel edge
Hf length isIt is cut in Fig. 1 and remaining after three right angled triangles structure is sequentially connected by a, h, f, e, d, c, b point
At polygon be radiating element, the size ah=15mm of upper length of side a points to h points, the size cd=of lower length of side c points to d points
8mm；The size of the left side long a points to b points is 13.5mm, and the size of the right long e points to f points is 7mm, three bevel edge length (b points to c
Point length, the length of d points to e points, the length of f points to h points) size be all
Two C-channels 4 are opened in the inside of radiating element 2, two C-channels are using straight line where impedance matching box as axial symmetry cloth
It sets, and the width of two C-channels is equal, length differs, two C-channels 4 are by the rectangle group that three width dimensions are 0.5mm
At the short C-channel being located above is 6mm away from the distance at the top of radiating element, and the horizontal length of short C-channel is 8mm, vertical length
For 5mm；Underlying distance of the long C-channel away from radiating element bottom is 6mm, and the horizontal length of long C-channel is 16mm, vertically
Length is 5mm；The notch of long C-channel and short C-channel is opposite, and short C-channel is wrapped up by long C-channel.
The length and width dimensions of the microstrip feed line 6 are 3.5mm × 2.8mm；
The both upper ends thereof of the generally rectangle of 22mm × 9mm of the ground plane 7, rectangle has corner cut structure 8, two corner cuts
Planform size is identical, is right angle trigonometry shape, is located at the upper left side and upper right side of ground plane 7；Right angle trigonometry shape it is oblique
The size of side np isThe bottom size dimension for cutting ground plane after corner cut structure is 22mm, top size dimension
Be 16mm, two bevel edges size beThe size of two vertical edges of left and right is all 4.5mm.
Fig. 3 be the present embodiment antenna return loss plot, as seen from Figure 3 antenna 2.73GHz-3.42GHz,
Return loss is less than -10dB in 4.11GHz-5.26GHz and 5.53GHz-14GHz frequency ranges, this enables antenna to be operated in
In 2.73GHz-3.42GHz, 4.11GHz-5.26GHz and 5.53GHz-14GHz frequency range, 3.42GHz-4.11GHz and
Return loss is more than -10dB in 5.26GHz-5.53GHz frequency ranges, and it is micro- that this enables antenna effectively to eliminate the whole world at 3.5GHz
Wave interconnection accesses the interference of WLAN (WLAN) signal at (WIMAX) signal and 5.5GHz.
Fig. 4 be the present embodiment antenna voltage standing wave ratio curve graph, as can be seen from the figure above-mentioned return loss be less than-
The voltage standing wave ratio of the frequency range internal antenna of 10dB is respectively less than 2, meets engine request.
Fig. 5, Fig. 6 and Fig. 7 are the present embodiment antenna corresponding antenna in frequency 4.5GHz, 6.5GHz and 9GHz respectively
Directional diagram, E/H refers to electric field or magnetic field in figure, and as can be seen from the figure the radiation pattern of the present embodiment is approximately dipole
Sub (being made of two monopoles) antenna pattern, this illustrates that the radiation mechanism of the ultra-wideband antenna is monopole radiation mechanism,
And the antenna has good radiation characteristic, and under above three frequency, which shows preferably directionality, meets
Engine request.
The utility model antenna has small, simple in structure, the wider 2.7GHz-14GHz of working band, and there are two fall into for tool
Wave wave band (has trap wave band 3.42GHz-4.11GHz at 3.5GHz, has trap wave band 5.26GHz- at 5.5GHz
5.53GHz), the advantages that and trap wave band is narrower.
Examples detailed above is the preferable embodiment of the utility model, in addition on the basis of the present embodiment, change C-channel,
The shape of impedance matching box, the size and location of the right angled triangle cut, corner cut structure should all be included in the protection of the application
In range.
The utility model does not address place and is suitable for the prior art.
Claims (5)
1. a kind of small capacity double trap UWB antenna, including medium substrate, radiating element, microstrip feed line and ground plane, are given an account of
Matter substrate back is printed with ground plane, and ground plane is printed with radiation in the bottom at the medium substrate back side, the medium substrate front
Unit and microstrip feed line, it is characterised in that：The antenna further includes impedance matching box, and the impedance matching box is printed on medium substrate
Front, radiating element is connected with impedance matching box, and impedance matching box is connected with microstrip feed line, radiating element medium substrate just
The top in face, impedance matching box is in the underface of radiating element, and microstrip feed line is in the underface of impedance matching box；
The radiating element is is cut the polygon shape that the right angled triangle in lower left, lower right and upper right side is formed by rectangle
Shape, opens that there are two C-channels in the middle part of radiating element；The shape of the impedance matching box is rectangle, and two C-channels are with impedance matching
Straight line is arranged for axial symmetry where device；The both upper ends thereof of the ground plane generally rectangle, rectangle has corner cut structure.
2. small capacity double trap UWB antenna according to claim 1, which is characterized in that the width of described two C-channels
Equal, length differs, and the notch of two C-channels is positioned opposite, and long C-channel is located at the lower section of short C-channel.
3. small capacity double trap UWB antenna according to claim 1, which is characterized in that cut on the radiating element
The geomery of three right angled triangles is identical, and two right angled triangles positioned at lower left and lower right are with impedance matching box
Axis is symmetrical, is in be arranged symmetrically up and down positioned at two right angled triangles in lower right and upper right side.
4. small capacity double trap UWB antenna according to claim 1, which is characterized in that the corner cut knot on the ground plane
The shape of structure is right angle trigonometry shape.
5. small capacity double trap UWB antenna according to claim 1, which is characterized in that cut on the radiating element
The length ratio of two right-angle sides of right angled triangle is 7:6.5, a right-angle side length and the radiating element overall length of right angled triangle
The ratio of degree is 6.5:20, another right angle edge lengths of right angled triangle and the ratio of radiating element overall width are 7:22.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721665257.4U CN207611865U (en) | 2017-12-04 | 2017-12-04 | A kind of small capacity double trap UWB antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721665257.4U CN207611865U (en) | 2017-12-04 | 2017-12-04 | A kind of small capacity double trap UWB antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207611865U true CN207611865U (en) | 2018-07-13 |
Family
ID=62797090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721665257.4U Withdrawn - After Issue CN207611865U (en) | 2017-12-04 | 2017-12-04 | A kind of small capacity double trap UWB antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207611865U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834190A (en) * | 2017-12-04 | 2018-03-23 | 河北工业大学 | A kind of small capacity double trap UWB antenna |
| TWI713253B (en) * | 2019-11-22 | 2020-12-11 | 啓碁科技股份有限公司 | Antenna structure |
| CN114552193A (en) * | 2022-02-28 | 2022-05-27 | 上海师范大学 | High-gain broadband printing sleeve antenna |
-
2017
- 2017-12-04 CN CN201721665257.4U patent/CN207611865U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834190A (en) * | 2017-12-04 | 2018-03-23 | 河北工业大学 | A kind of small capacity double trap UWB antenna |
| CN107834190B (en) * | 2017-12-04 | 2024-02-27 | 河北工业大学 | Small double-notch ultra-wideband antenna |
| TWI713253B (en) * | 2019-11-22 | 2020-12-11 | 啓碁科技股份有限公司 | Antenna structure |
| CN114552193A (en) * | 2022-02-28 | 2022-05-27 | 上海师范大学 | High-gain broadband printing sleeve antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180713 Effective date of abandoning: 20240227 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180713 Effective date of abandoning: 20240227 |