CN107425270A - A kind of special miniaturization printing ultra-wideband monopole antenna of flexible wearable - Google Patents
A kind of special miniaturization printing ultra-wideband monopole antenna of flexible wearable Download PDFInfo
- Publication number
- CN107425270A CN107425270A CN201710515643.3A CN201710515643A CN107425270A CN 107425270 A CN107425270 A CN 107425270A CN 201710515643 A CN201710515643 A CN 201710515643A CN 107425270 A CN107425270 A CN 107425270A
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- medium substrate
- antenna
- earth plate
- radiation patch
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- Waveguide Aerials (AREA)
- Details Of Aerials (AREA)
Abstract
The invention discloses a kind of special miniaturization of flexible wearable to print ultra-wideband monopole antenna, including earth plate, medium substrate, feeding network and radiation patch, the thickness of the medium substrate is 0.8mm, earth plate is located at medium substrate side, the opposite side of medium substrate is provided with feeding network and radiation patch, the radiation patch is made up of semicircular structure and inverted trapezoidal structure, and the earth plate is equal with the width of medium substrate, and the top of earth plate is provided with rectangular channel.The impedance bandwidth range of inventive antenna is 2.7 12.3GHz, octave band a width of 4.56:1, cover the working band of ultra-wideband communication system.The antenna size is small, it is simple in construction, be easy to make, suitable for wireless communication system and equipment, be nearest electromagnetic arts, the focus of wearable device area research, there is great development prospect.
Description
Technical field
The present invention relates to antenna technical field, is to be related to a kind of special miniaturization printing of flexible wearable in particular
Ultra-wideband monopole antenna.
Background technology
With the development of mobile communication, Development of Wireless Communications is very rapid, associated wireless communication technology, communication system
System, communication equipment etc. also turn into the focus of research.Human body central site network is an important component of mobile communication, and it causes
Wearable device is increasingly taken seriously, and the researching value of flexible wearable antenna also more and more higher.But with based on nothing
The appearance of line avalanche type application, the anxiety of band resource, band efficiency are low, bandwidth of operation is narrow, the work of distinct device or antenna
The problems such as being overlapped as frequency band can not similarly be ignored, and this all has influence on the reliability of antenna and the practicality of wireless communication system
Property.
2002, FCC (FCC) issued new wide-band communication system specification, it is therefore an objective to alleviates frequency
Anxiety with resource and the demand of reply high-speed communication, 3.1-10.6GHz frequency allocations are used to ultra-wideband communications, broadband
And super-broadband tech will be widely used in the fields such as industry, medical science, domestic life.The research of ultra-wideband antenna in recent years mainly towards
Miniaturization, broadband, compact-sized and economical and practical direction are developed, for wearable ultra-wideband antenna on flexible material
Research be increasingly taken seriously.Therefore flexible wearable ultra-wideband antenna has important researching value.
The content of the invention
The invention aims to overcome deficiency of the prior art, there is provided a kind of special miniaturization print of flexible wearable
Brush ultra-wideband monopole antenna, the impedance bandwidth range of the antenna are 2.7-12.3GHz, octave band a width of 4.56:1, cover
The working band of ultra-wideband communication system.The antenna size is small, it is simple in construction, be easy to make, suitable for wireless communication system and set
It is standby, it is nearest electromagnetic arts, the focus of wearable device area research, there is great development prospect.
The purpose of the present invention is achieved through the following technical solutions：
A kind of special miniaturization printing ultra-wideband monopole antenna of flexible wearable, including earth plate, medium substrate, feed
Network and radiation patch, the thickness of the medium substrate are 0.8mm, and earth plate is located at medium substrate side, medium substrate it is another
Side is provided with feeding network and radiation patch, and the radiation patch is made up of semicircular structure and inverted trapezoidal structure, the ground connection
Plate is equal with the width of medium substrate, and the top of earth plate is provided with rectangular channel.
The specification of the medium substrate is 32mm × 40mm.
The relative dielectric constant of the medium substrate is 2.65, loss tangent value 0.02.
A diameter of 15-17mm of the semicircular structure.
Compared with prior art, beneficial effect caused by technical scheme is：
1. a width of 2.7-12.3GHz of inventive antenna band, octave band a width of 4.56:1, antenna echo in effective bandwidth damages
Consumption is less than -10dB, voltage standing wave ratio VSWR<2, return loss of the antenna in 2.7-12.3GHz frequency ranges is less than -10dB, and
And there is good radiance, meet requirement of the radio ultra wide band system to Antenna Design, and medium substrate and radiation patch are equal
For flexible material, the design of flexible wearable printed monopole ultra-wideband antenna is realized.
2. the present invention is made up of using microstrip line as feeding network, radiation patch trapezium structure and inverted trapezoidal structure, can
Change the distribution character of electric current in radiation patch, improve low frequency and intermediate frequency, high frequency is had a certain impact.In addition, in earth plate
The distribution character of electric current on earth plate can be changed provided with rectangular channel, the medium-high frequency of antenna can be improved, improve the property of the antenna
Energy.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the side structure schematic view of the present invention.
Fig. 3 is the physical dimension schematic diagram of the specific embodiment of the invention.
Fig. 4 is the physical dimension schematic diagram of earth plate.
Fig. 5 is the return loss simulation result of radiation patch at different conditions in inventive antenna.
Fig. 6 (a), Fig. 6 (b) and Fig. 6 (c) are inventive antenna respectively respectively in 3.5GHz, 6.5GHz and 9.5GHz tri-
Antenna pattern at frequency.
Reference：1- earth plate 2- medium substrate 3- feeding network 4- radiation patch
Embodiment
The invention will be further described below in conjunction with the accompanying drawings：
As shown in Figures 1 to 4, the special miniaturization printing ultra-wideband monopole antenna of a kind of flexible wearable, including ground connection
Plate 1, medium substrate 2, feeding network 3 and radiation patch 4, medium substrate 2 is made by PDMS flexible matrix materials, normal with respect to dielectric
Number is 2.65, loss tangent value 0.02, thickness 0.8mm.
Antenna in the present embodiment is to be produced on the medium that specification is 32mm × 40mm × 0.8mm by engraving method
On substrate 2, earth plate 1 etches is etched with feeding network 3 and radiation patch in the side of medium substrate 2, the opposite side of medium substrate 2
4, feeding network 3 is made up of microstrip line, and the present embodiment is fed using side feedback mode, and input impedance is 50 Ω, real well
Impedance matching is showed.Earth plate 1 is rectangular configuration and wide with medium substrate 2, and width is 32mm, the shape of earth plate 1 and chi
It is very little as shown in figure 4, earth plate 1 is provided with rectangular channel；Radiation patch 4 uses organosilicon conductive silver glue material, by semicircular structure
It is integrally formed with inverted trapezoidal structure, radiation patch shape is as shown in Figure 1.
Specific size of the inventive antenna after optimization design is illustrated in figure 3, Fig. 4 is the physical dimension of earth plate
Parameter, it is specific as follows：L=32mm, W=40mm, L1=16.8mm, W1=20mm, L2=4.9mm, W2=8mm, T=3mm, G
=1.2mm, dielectric substrate thickness H=0.8mm, the size of rectangular channel is on earth plate：L3=2mm, W3=6mm.Radiation patch
The upper length of side of upper inverted trapezoidal structure is equal with the diameter of semicircular structure, i.e.,：L1=2*R.Inverted trapezoidal structure is that rectangle cuts two
The result of individual triangle.
For the radiation characteristic of researching antenna in the present embodiment, emulated with all-wave 3 D electromagnetic, to antenna 3.5GHz,
Simulation optimization is carried out at 6.5GHz, 9.5GHz frequency, obtains directional diagram of the antenna at different frequency, and simulation result is carried out
Analysis.In Fig. 5 for inventive antenna return loss and with without fluting and antenna without semicircular structure, inverted trapezoidal structure
Simulation result compares figure.Fig. 6 (a)-such as 6 (c) is the antenna radiation direction at 3.5GHz, 6.5GHz, 9.5GHz frequency respectively
Figure simulation result.
By simulation analysis, it is known that beamwidth of antenna 2.7-12.3GHz, octave band a width of 4.56:1, antenna is in effective band
Return loss is less than -10dB, voltage standing wave ratio VSWR in width<2.Antenna related parameters are optimized, finally giving antenna has
Effect broadband is 2.7-12.3GHz.The simulation results such as return loss, directional diagram are can obtain, and with being tied without fluting and without semicircle
Structure, the antenna of inverted trapezoidal structure have carried out comparative analysis.
In fig. 5 it can be seen that (1) a width of 2.9-8.2GHz of band of antenna, is not inconsistent without rectangular channel and during inverted trapezoidal structure
Purpose of design and requirement are closed, 3.1-10.6 ultra wide band range can not be covered.(2) without rectangular channel and when having inverted trapezoidal structure,
Band a width of 2.9-8.8GHz and 10.3-12.3GHz of antenna, is more than -10dB, it is impossible to cover in 8.8-10.3GHz return losses
3.1-10.6 ultra wide band claimed range, and in the 4.5GHz and 7GHz close -10dB of return loss, it is impossible to reach preferable
Impedance matching effect.(3) there is rectangular channel and during without inverted trapezoidal structure, band a width of 2.7-8GHz and 9.6-11.3GHz of antenna,
Return loss is more than -10dB during 8-9.6GHz, it is impossible to covers 3.1-10.6 ultra wide band claimed range, but has in 2.7-8GHz
Good impedance matching.(4) when while having rectangular channel and inverted trapezoidal structure, a width of 2.7-12.3GHz of band of antenna, design is met
Purpose and requirement, 3.1-10.6GHz ultra wide band range can be completely covered, medium substrate and radiation patch are all flexible material,
It is achieved that the design of flexible wearable monopole antenna.It can be seen that when simultaneously antenna has rectangular channel and semicircular structure, the ladder that falls
During shape structure, trapezoidal structure can change the distribution character of electric current on paster, can improve low frequency and intermediate frequency, have one to high frequency
Fixed influence.In addition, the distribution character of electric current on earth plate can be changed by opening rectangular channel in earth plate, can improve in antenna
High frequency.Reasonably adjust the design requirement that semicircular structure, inverted trapezoidal structure and rectangular channel size can realize antenna.
Further, as seen from Figure 5, in 2.7-12.3GHz, antenna return loss below -10dB,
3GHz, 5.2GHz, 8GHz and 9.6GHz frequency have nearby been even up to -30, -42, -23 and -30dB, have reached good impedance
Matching.
From Fig. 6 (a) to Fig. 6 (c), antenna in the approximate figure of eight and connects respectively in the antenna pattern in E faces and H faces
The characteristic of nearly omnidirectional radiation.
The present invention is not limited to embodiments described above.The description to embodiment is intended to describe and said above
Bright technical scheme, above-mentioned embodiment is only schematical, is not restricted.This is not being departed from
In the case of invention objective and scope of the claimed protection, one of ordinary skill in the art may be used also under the enlightenment of the present invention
The specific conversion of many forms is made, these are belonged within protection scope of the present invention.
Claims (4)
1. a kind of special miniaturization printing ultra-wideband monopole antenna of flexible wearable, including earth plate, medium substrate, transmission network
Network and radiation patch, it is characterised in that the thickness of the medium substrate is 0.8mm, and earth plate is located at medium substrate side, medium
The opposite side of substrate is provided with feeding network and radiation patch, and the radiation patch is made up of semicircular structure and inverted trapezoidal structure,
The earth plate is equal with the width of medium substrate, and the top of earth plate is provided with rectangular channel.
2. a kind of special miniaturization printing ultra-wideband monopole antenna of flexible wearable, its feature exist according to claim 1
In the specification of the medium substrate is 32mm × 40mm.
3. a kind of special miniaturization printing ultra-wideband monopole antenna of flexible wearable according to claim 1 or claim 2, its feature
It is, the relative dielectric constant of the medium substrate is 2.65, loss tangent value 0.02.
4. a kind of special miniaturization printing ultra-wideband monopole antenna of flexible wearable, its feature exist according to claim 1
In a diameter of 15-17mm of the semicircular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710515643.3A CN107425270A (en) | 2017-06-29 | 2017-06-29 | A kind of special miniaturization printing ultra-wideband monopole antenna of flexible wearable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710515643.3A CN107425270A (en) | 2017-06-29 | 2017-06-29 | A kind of special miniaturization printing ultra-wideband monopole antenna of flexible wearable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107425270A true CN107425270A (en) | 2017-12-01 |
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|---|---|---|---|
| CN201710515643.3A Pending CN107425270A (en) | 2017-06-29 | 2017-06-29 | A kind of special miniaturization printing ultra-wideband monopole antenna of flexible wearable |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109273840A (en) * | 2018-09-10 | 2019-01-25 | 天津大学 | A kind of flexible antennas |
| CN110058130A (en) * | 2019-04-02 | 2019-07-26 | 中科伟博(苏州)智能科技有限公司 | A kind of insulator deterioration detecting apparatus based on ultra-wideband antenna sensor |
| CN111313148A (en) * | 2020-02-28 | 2020-06-19 | 南京邮电大学 | Flexible active monopole antenna |
| CN111799552A (en) * | 2020-07-23 | 2020-10-20 | 河北工业大学 | Low-cost embedded wearable antenna |
| CN113161733A (en) * | 2021-03-18 | 2021-07-23 | 西安电子科技大学 | Graphene-based flexible broadband monopole wearable antenna |
| CN115498418A (en) * | 2022-09-06 | 2022-12-20 | 湖北工业大学 | Flexible subminiature monopole antenna |
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| CN106299612A (en) * | 2016-08-05 | 2017-01-04 | 天津大学 | A kind of monopole antenna based on flexible wearable application |
| CN106450728A (en) * | 2016-10-14 | 2017-02-22 | 天津大学 | Flexible wearable dual-band monopole antenna based on PDMS material |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109273840A (en) * | 2018-09-10 | 2019-01-25 | 天津大学 | A kind of flexible antennas |
| 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 |
| CN110058130A (en) * | 2019-04-02 | 2019-07-26 | 中科伟博(苏州)智能科技有限公司 | A kind of insulator deterioration detecting apparatus based on ultra-wideband antenna sensor |
| CN111313148A (en) * | 2020-02-28 | 2020-06-19 | 南京邮电大学 | Flexible active monopole antenna |
| CN111799552A (en) * | 2020-07-23 | 2020-10-20 | 河北工业大学 | Low-cost embedded wearable antenna |
| CN113161733A (en) * | 2021-03-18 | 2021-07-23 | 西安电子科技大学 | Graphene-based flexible broadband monopole wearable antenna |
| CN113161733B (en) * | 2021-03-18 | 2022-07-01 | 西安电子科技大学 | Graphene-based flexible broadband monopole wearable antenna |
| CN115498418A (en) * | 2022-09-06 | 2022-12-20 | 湖北工业大学 | Flexible subminiature monopole antenna |
| CN115498418B (en) * | 2022-09-06 | 2024-06-04 | 湖北工业大学 | Flexible ultra-small monopole antenna |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171201 |
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| WD01 | Invention patent application deemed withdrawn after publication |