CN108899641A - A pocket super-broadband antenna for ear-lobe blood glucose Concentration Testing - Google Patents
A pocket super-broadband antenna for ear-lobe blood glucose Concentration Testing Download PDFInfo
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- CN108899641A CN108899641A CN201810590099.3A CN201810590099A CN108899641A CN 108899641 A CN108899641 A CN 108899641A CN 201810590099 A CN201810590099 A CN 201810590099A CN 108899641 A CN108899641 A CN 108899641A
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- ear
- antenna
- printed
- blood glucose
- glucose concentration
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- 210000000624 ear auricle Anatomy 0.000 title claims abstract description 14
- 239000008280 blood Substances 0.000 title claims abstract description 10
- 210000004369 blood Anatomy 0.000 title claims abstract description 10
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 title claims abstract description 7
- 239000008103 glucose Substances 0.000 title claims abstract description 7
- 238000012360 testing method Methods 0.000 title claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims abstract description 15
- 239000000758 substrate Substances 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 206010012601 diabetes mellitus Diseases 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/0507—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves using microwaves or terahertz waves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/14532—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue for measuring glucose, e.g. by tissue impedance measurement
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Medical Informatics (AREA)
- Surgery (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- Molecular Biology (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Radiology & Medical Imaging (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Emergency Medicine (AREA)
- Optics & Photonics (AREA)
- Waveguide Aerials (AREA)
Abstract
The present invention relates to a kind of pocket super-broadband antennas for ear-lobe blood glucose Concentration Testing, for the planar structure that is printed on one side, it is printed on 20mm × 20mm × 1.6mm substrate, take coplanar waveguide structure, its metal layer includes fed patch and earth plate two parts, which is characterized in that fed patch takes curved structure, main body is the metal strip for being folded into square-wave form, and one side is connected to feed line by transverse metal item；The specific size of feed section is obtained by emulation.The present invention has stable working characteristics in ultra wide band working band, can effectively emit and receive high-frequency signal.
Description
Technical field
The present invention relates to a kind of pocket super-broadband antennas.
Background technique
Currently, the disease incidence of diabetes constantly increases, and the non-exempt from customs examination patient of many noninvasive and minimally invasive method brings body
The pressure of pain and spirit on body, increases the risk of infection.A kind of highly desirable accurately Non-invasive detection blood glucose of people
Method is born.
With quickly growing for modern wireless communication technique, signal band resource tends to be nervous, growing in order to meet
Military demand and civilian demand, the working band of all kinds of microwave devices gradually widens to high frequency.And ultra wide band (UWB) technology phase
For narrow-band technologies, there is low-power consumption, high-precision, ultra wide band (UWB) skill of many advantages such as high-speed, cheap high-performance
Art has better development space.
As microwave wireless technology is fast-developing, super-broadband tech field applicatory is constantly expanded, such as detection thunder
It reaches, material flaw detection, human medical field etc..The micro-strip paster antenna of lithography techniques production, with compact structure and
Cheap cost, by the favor of numerous researchers and engineering staff, has expanded extensive exploration since by developmental research
And application and development.
A antenna suitable for the detection of human body microwave should have and have stable impedance performance in tissue surface, and should have
Sufficiently small size is easily arranged in various tissue surfaces, such as the blood sugar concentration for ear-lobe tissue detects.One good
For ear-lobe surface microwave detection use pocket super-broadband antenna, should also have stable reflection characteristic in regulation frequency range,
To the reception good of signal, basis is provided for the signal processing in later period.
Summary of the invention
The object of the present invention is to provide a kind of Minitype flats of blood sugar concentration non-destructive testing that can be applied to ear-lobe tissue surface
Ultra-wideband antenna is printed in face, has stable working characteristics in ultra wide band frequency, working band, effectively can emit and connect
Receive high-frequency signal.Technical solution is as follows：
A pocket super-broadband antenna for ear-lobe blood glucose Concentration Testing is printed on for the planar structure that is printed on one side
On 20mm × 20mm × 1.6mm substrate, coplanar waveguide structure is taken, metal layer includes fed patch and earth plate two
Point, which is characterized in that fed patch takes curved structure, and main body is the metal strip for being folded into square-wave form, and one side passes through cross
Feed line is connected to metal strip；The specific size of feed section is obtained by emulation.
Detailed description of the invention
The positive structure schematic of Fig. 1 antenna
The S11 characteristic curve of Fig. 2 antenna
The transmitting and reception signal waveform of Fig. 3 antenna
The reception signal waveform amplification of Fig. 4 antenna
Specific embodiment
The present invention will be described with reference to the accompanying drawings and examples.
Before designing antenna of the invention, the multilayer ear-lobe model of first simple structure, to construct the emulation conformed to the actual situation
Environment.In conjunction with the naive model of ear-lobe institutional framework, initial antenna size is set.By designed transmitting antenna and receive day
Line is placed in the skin layer surface of model two sides, is suitably debugged by simulation result, obtains suitable antenna structure and size.
As shown in Figure 1, this antenna is the planar structure that is printed on one side, it is printed on the FR-4 type medium base that dielectric constant is 4.4
On plate, overall dimensions are 20mm × 20mm × 1.6mm.The double-layer structure of this antenna is respectively metal layer and medium substrate layer.It adopts
Coplanar waveguide structure is taken.Metal layer is made of fed patch and earth plate two parts.Ground plate section is symmetrical by two pieces
Rectangular metal sheet composition.Fed patch is to realize that electric field energy is radiated the resonant element in space, takes curved structure that can prolong
Radiation areas edge length has been grown, has been equivalent to and extends effective electrical length, and has reduced the size of radiation areas.So antenna
The major part of fed patch is the metal strip for folding over into square-wave form, passes through the metal strip of a transverse direction in its left side
It is connected to feed line.Connector suitable for this antenna is sub-miniature A connector, electromagnetic wave can be transmitted to feed patch by transmission line
Piece.Fig. 1 is such ultra-wideband antenna positive structure schematic.The dark parts of Fig. 1 are the metal flat (0.035mm printed
Copper foil), the white portion of antenna is dielectric layer.The calculation formula of wavelength is,It is on the length ideal of antenna
1/4 wavelength or 1/2 wavelength, can be such that efficiency maximizes.Since the size of this antenna is smaller, curved structure is used, it can
With appropriate selection turnover node.Feed section then finds corresponding structure by cst software and is calculated.By repeatedly optimizing to obtain
The geometric dimension parameter of antenna is：
L=20mm, W=20mm, L1=11mm, L2=1mm, L3=2mm, L4=1mm, L5=4mm, W1=1mm, W2=
4mm, W3=3.5mm, W4=4mm, W5=3.5mm, W6=9.5mm, W7=1mm, W8=4mm, W9=4.1mm, W10=
3mm。。
Fig. 2 is the S11 figure of antenna.S11 indicates return loss characteristic.Return loss (Return Loss, RL) characterization be
The power consumption efficiency of transmission line port is the ratio between reflected wave powers and incident power of transmission line port, with logarithmic form
It indicates, unit is dB, usually negative value, absolute value is properly termed as reflection loss.It is expressed as：RL=-20log | Γ |
(dB).(Γ is reflection coefficient)
By formula it is inferred that the value of return loss RL is bigger, illustrate that the radiant power not being reflected back is more, matching is more
It is good, when RL is 0, illustrate that antenna is in total reflection state, there is no waves by the transmitting of feeder line to antenna, i.e., there is no feeder lines
The loss of wave, energy are not radiate.Be intuitive to see from Fig. 2 antenna in 0.73-0.98GHz, 1.70-1.92GHz,
Return loss in multiple working bands such as 2.78-3.06GHz, 3.68-5.3GHz, 6.77-10GHz is in -10dB hereinafter, tool
There are good matching properties, standing-wave ratio is high, and energy transfer efficiency is high.
Fig. 3 is the input and reception signal waveform of antenna at work.Reception signal waveform when Fig. 4 is work.It can be with
Find out that signal after the reflection of ear-lobe organization internal, since multiple waveforms occurs in multipath effect, however can prolong from the time
Suitable waveform is found out in the reckoning of delay angle degree.And compared with transmitted wave, received wave waviness trend is constant, only has in amplitude
Variation, amplitude variation can restore by follow-up signal enhanced processing, therefore the antenna meets actual detection needs.
The antenna is a blood sugar concentration detection ultra-wideband antenna suitable for ear-lobe tissue, in entire working frequency range
It is functional, it is suitable for ear-lobe tissue surface and the similar tissue of some and human skin tissue dielectric constant.The antenna
The electromagnetic transmission medium of transmitting is skin histology, and antenna should attach adjacent to each other when being used for ear-lobe tissue blood glucose Concentration Testing
In tissue surface.
Claims (1)
1. a pocket super-broadband antenna for ear-lobe blood glucose Concentration Testing is printed on 20mm for the planar structure that is printed on one side
On the substrate of × 20mm × 1.6mm, coplanar waveguide structure is taken, metal layer includes fed patch and earth plate two parts,
It is characterized in that, fed patch takes curved structure, and main body is the metal strip for being folded into square-wave form, and one side passes through transverse metal
Item is connected to feed line；The specific size of feed section is obtained by emulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810590099.3A CN108899641A (en) | 2018-06-08 | 2018-06-08 | A pocket super-broadband antenna for ear-lobe blood glucose Concentration Testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810590099.3A CN108899641A (en) | 2018-06-08 | 2018-06-08 | A pocket super-broadband antenna for ear-lobe blood glucose Concentration Testing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108899641A true CN108899641A (en) | 2018-11-27 |
Family
ID=64344500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810590099.3A Pending CN108899641A (en) | 2018-06-08 | 2018-06-08 | A pocket super-broadband antenna for ear-lobe blood glucose Concentration Testing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108899641A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110729050A (en) * | 2019-09-01 | 2020-01-24 | 天津大学 | Method for establishing three-dimensional earlobe model for blood sugar detection |
| RU207850U1 (en) * | 2021-05-21 | 2021-11-19 | Федеральное государственное автономное образовательное учреждение высшего образования «Национальный исследовательский Томский государственный университет» | SENSOR FOR NON-INVASIVE MEASUREMENT OF GLUCOSE CONCENTRATION |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009290A (en) * | 2014-05-28 | 2014-08-27 | 天津大学 | Coplanar waveguide feed wearable patch antenna for ISM wave band |
| CN204167480U (en) * | 2014-07-07 | 2015-02-18 | 吉林大学 | Single trap UWB antenna that a kind of bent spurious element loads |
| CN204464453U (en) * | 2015-04-13 | 2015-07-08 | 天津职业技术师范大学 | The annular umbrella-like ultra-wideband antenna of coplanar wave guide feedback |
| CN106876957A (en) * | 2015-12-13 | 2017-06-20 | 哈尔滨飞羽科技有限公司 | A kind of new monopole ultra-wideband antenna for opening " returning " font groove |
-
2018
- 2018-06-08 CN CN201810590099.3A patent/CN108899641A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009290A (en) * | 2014-05-28 | 2014-08-27 | 天津大学 | Coplanar waveguide feed wearable patch antenna for ISM wave band |
| CN204167480U (en) * | 2014-07-07 | 2015-02-18 | 吉林大学 | Single trap UWB antenna that a kind of bent spurious element loads |
| CN204464453U (en) * | 2015-04-13 | 2015-07-08 | 天津职业技术师范大学 | The annular umbrella-like ultra-wideband antenna of coplanar wave guide feedback |
| CN106876957A (en) * | 2015-12-13 | 2017-06-20 | 哈尔滨飞羽科技有限公司 | A kind of new monopole ultra-wideband antenna for opening " returning " font groove |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110729050A (en) * | 2019-09-01 | 2020-01-24 | 天津大学 | Method for establishing three-dimensional earlobe model for blood sugar detection |
| RU207850U1 (en) * | 2021-05-21 | 2021-11-19 | Федеральное государственное автономное образовательное учреждение высшего образования «Национальный исследовательский Томский государственный университет» | SENSOR FOR NON-INVASIVE MEASUREMENT OF GLUCOSE CONCENTRATION |
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Application publication date: 20181127 |