CN206225534U - A kind of wideband implanted human body antenna for being applied to portable medical - Google Patents
A kind of wideband implanted human body antenna for being applied to portable medical Download PDFInfo
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- CN206225534U CN206225534U CN201621291533.0U CN201621291533U CN206225534U CN 206225534 U CN206225534 U CN 206225534U CN 201621291533 U CN201621291533 U CN 201621291533U CN 206225534 U CN206225534 U CN 206225534U
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- wideband
- human body
- implanted human
- body antenna
- antenna
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Abstract
The utility model discloses a kind of wideband implanted human body antenna for being applied to portable medical, including antenna structure, coaxial feed and bio-compatible coating structure, the antenna structure is made up of radiation metal patch, metal floor paster, medium substrate and grounding probe, the radiation metal patch and metal floor paster are respectively positioned at the upper and lower surface of medium substrate, described short circuit metallic probe connection radiation patch and metal floor paster, the coaxial feed is made up of the coaxial cable that characteristic impedance is 50 Ω.Wideband implanted human body antenna designed by the utility model works in medical embedded formula communication service frequency range (MICS), the features such as with miniaturization, low section, wideband, high robust and bio-compatible.
Description
Technical field
The utility model belongs to portable medical wireless communication field, and in particular to a kind of wideband for being applied to portable medical is planted
Enter formula human body antenna.
Background technology
In the last few years, social population's aging constantly aggravates, the health that sub-health state crowd is continuously increased etc. is brought
Problem is increasingly becoming the emphasis of social concerns.At the same time, flourishing and social life quality along with social economy
Constantly lifting, people there has also been requirement higher to medical service quality, and this will promote society to improve health care clothes
The level of business.And medical services scarcity of resources is produced during modern society's transition and unequal phenomenon, doctor and disease is distributed
The need for the Conventional diagnostic pattern of the face-to-face formula of people can not meet social development.In order to break through and spatial dimension
Limitation, and then medical services resource is more reasonably distributed and managed, diagnosis and treatment level are improved, while reducing
Medical time and cost, preferably for the popular health care of enjoyment whenever and wherever possible provides service, portable medical technology is gradually subject to
The extensive concern of modern society.The development of portable medical technology promotes implantable medical device to occur.Set by implantable medical
It is standby that medical personnel can not only be allowed to measure, obtain the physiologic information of life entity in real time, for prevention from suffering from the diseases, Clinics and Practices are provided
Information is helped, while more comfortable treatment service also can be provided for patient.In order to obtain vivo implantation type in vitro
Physiologic information or send treatment signal in vitro to vivo implantation type Medical Devices, it is necessary in vivo that Medical Devices are collected
Reliable ground wireless communication can be carried out between outer two kinds of different equipment.And antenna is used as implantable medical device and external device
The Primary Component of radio communication is carried out, the transmission of biomedicine signals is affected, the implanted antenna of function admirable will be lifted whole
The safety and reliability of individual Mobile medical system.
As wireless communication devices it is one kind that implantable medical device and external device realize reliable communication using antenna
Effective settling mode, but the design of implanted antenna is different from the antenna equipment that our tradition are used.Because antenna needs
Be implanted to inside of human body, different biological tissue not only comes in every shape in vivo, and electromagnetic property is also different, can with frequency,
The change of temperature and water content etc. and change.The position of antenna, orientation can also produce change with the motion of human body.These are special
Property together constitutes the working environment of implanted antenna complex.In addition to influence of the human body to be considered to antenna performance, design is planted
The factors such as bio-compatibility, miniaturization, low-power consumption and security must also be considered when entering formula antenna.These limitations are also increased
The design difficulty of implanted antenna.
Utility model content
In order to overcome the shortcomings of that prior art is present, the utility model provides a kind of wideband implantation for being applied to portable medical
Formula human body antenna.
The utility model is adopted the following technical scheme that：
A kind of wideband implanted human body antenna for being applied to portable medical, including antenna structure, coaxial feed and life
Thing compatibility coating structure, the antenna structure is by radiation metal patch, metal floor paster, medium substrate and grounding probe structure
Into, respectively positioned at the upper and lower surface of medium substrate, the grounding probe is used for for the radiation metal patch and metal floor paster
Connection radiation metal patch and metal floor.
The antenna structure is square structure that corner is arcuation.
The radiation metal patch uses microstrip line construction, and the microstrip line construction is that microstrip line is bending the plane for constituting just
Square structure.
The grounding probe is cylindrical structural, and radius is 0.5mm.
The coaxial feed is constituted by by the coaxial cable that characteristic impedance is 50 Ω, the coaxial cable inner core radius
It is 0.4mm, coaxial cable inner core is connected with radiation metal patch, and coaxial cable outer surface is connected with metal floor paster.
The length of side of the plane square structure is 9.42mm.
The length of side of the square structure is 9.5mm, and thickness is 0.635mm.
The bio-compatible coating structure is made up of the film layer for wrapping up whole antenna, and thickness is 0.02mm.
The beneficial effects of the utility model：
(1) antenna lowers the resonance of antenna frequently by carrying out bending extension Net long wave radiation current path to microstrip line, so that
The size of antenna is reduced, relative to common microstrip antenna, antenna size is smaller, be more beneficial for being applied to implantable medical setting
It is standby；
(2) on the basis of microstrip antenna, antenna extended antenna by way of loading grounding probe and increasing resonance point
Bandwidth, it is ensured that antenna remains to be operated in frequency band range when environment (e.g., dielectric constant) changes in vivo, so that antenna
With more preferable robustness；
(3) coating film treatment is carried out using biocompatible material to view picture antenna, it is to avoid the rejection of human body, protects human body
Safety.The insulation characterisitic of plated film has isolated the contact biological tissue of radiation patch and conductive characteristic simultaneously, prevent by
This short-circuiting effect for producing；
(4) the wideband implanted antenna designed by has miniaturization, low section, wideband, high robust and bio-compatible etc.
Feature
(5) antenna designed by has good directionality, has most intense radiation intensity towards external direction, while the back of the body
Valve gain is relatively low, reduces the injury of episternites Radiation On Human body：
(6) four arcuation angles of square structure designed by, it is to avoid damages of the sharp objects to inside of human body tissue.
Brief description of the drawings
Fig. 1 is top view of the present utility model；
Fig. 2 is side view of the present utility model；
Fig. 3 is reflectance factor analogous diagram of the utility model on three layers of tissue phantom；
Fig. 4 (a) is that the gain size of 360 ° of different angles that implanted antenna is implanted into human body in the horizontal direction is connected
Curve, each dashed circle correspond to the gain size of the corresponding scale in the left side in figure；
Fig. 4 (b) is 360 ° of gain size phases of different angles in implanted antenna in the vertical direction implantation human body
Connect curve.
Specific embodiment
With reference to embodiment and accompanying drawing, the utility model is described in further detail, but reality of the present utility model
Apply mode not limited to this.
Embodiment
As shown in Figures 1 and 2, it is a kind of wideband implanted human body antenna for being applied to portable medical, including antenna structure, same
Axle feed structure and bio-compatible coating structure, the antenna structure is by radiation metal patch 1, metal floor paster, medium base
Plate and grounding probe are constituted, and the radiation metal patch 1 and metal floor paster 2 are respectively positioned at the upper following table of medium substrate 3
Face, described short circuit metallic probe 4 connection radiation patch 1 and metal floor paster 2.
Antenna structure is specially square structure, and its length of side g is 9.5mm, and thickness h is 0.635mm.In order to avoid square structure
Injury of the corner angle to antenna surrounding tissue, four angles of the square structure are designed as arc.
The radiation metal patch uses microstrip line construction, specially：The plane square knot being made up of microstrip line bending
Structure, length of side l is 9.42mm, and the grounding probe is cylindrical structural, and radius is 0.5mm, connection radiation metal patch and metal
Floor paster.
The structure of whole microstrip line is obtained according to four " king " word graph transformation connections in the present embodiment, and connecting portion is
One is horizontal in the middle of " king " word, and the vertical line connection of upper and lower king's word on right side in four king's words, upper and lower king's word in left side is connectionless, constitutes
Microstrip line construction entirety.The bending angle of square structure is 90 degree, and the rounded corners radius of paster corner is 1mm, microstrip line
Warp architecture related data it is as shown in table 1 below：
Microstrip line construction parameter (the unit of table 1：mm)
, using the Rogers's high frequency plate Rogers 3210 with high-k, it is with respect to dielectric for described medium substrate
Constant is 10.2, and loss tangent is 0.003.
The coaxial feed 5 is made up of the coaxial cable that characteristic impedance is 50 Ω, the coaxial cable inner core radius
It is 0.4mm, the coaxial cable inner core is connected by way of metallic vias with radiation metal patch, outer metallic surface and metal
Floor paster is connected.
The bio-compatible coating structure is constituted by being wrapped in the film layer outside view picture antenna.The Coating Materials uses oxygen
Change aluminium (alumina) material, its relative dielectric constant is 9.2, and loss tangent is 0.008, not only with biocompatibility,
There is insulating properties simultaneously, thicknesses of layers is 0.02mm.
As shown in Fig. 3 and Fig. 4 (a) and Fig. 4 (b), a kind of wideband implanted human body antenna work for being applied to portable medical
In medical embedded formula communication service frequency range (MICS：402MHz~405MHz), antenna also has impedance bandwidth wider.Meanwhile,
Designed antenna has good directionality, has most intense radiation intensity towards external direction, and episternites gain is relatively low, reduces
The injury of episternites Radiation On Human body.
The wideband implanted human body antenna of the utility model design has miniaturization, low section, wideband, high robust and life
The features such as thing compatibility.
Above-described embodiment is the utility model preferably implementation method, but implementation method of the present utility model is not by described
The limitation of embodiment, it is other it is any without departing from the change made under Spirit Essence of the present utility model and principle, modify, replace
Generation, combination, simplification, should be equivalent substitute mode, be included within protection domain of the present utility model.
Claims (9)
1. a kind of wideband implanted human body antenna for being applied to portable medical, it is characterised in that including antenna structure, coaxial feed
Structure and bio-compatible coating structure, the antenna structure is by radiation metal patch, metal floor paster, medium substrate and short circuit
Probe is constituted, and, respectively positioned at the upper and lower surface of medium substrate, the short circuit is visited for the radiation metal patch and metal floor paster
Pin is used to connect radiation metal patch and metal floor.
2. wideband implanted human body antenna according to claim 1, it is characterised in that the antenna structure is arc for corner
The square structure of shape.
3. wideband implanted human body antenna according to claim 1, it is characterised in that the radiation metal patch is using micro-
Strip line structure, the microstrip line construction is the plane square structure that microstrip line bending is constituted.
4. wideband implanted human body antenna according to claim 1, it is characterised in that the grounding probe is tied for cylinder
Structure, radius is 0.5mm.
5. wideband implanted human body antenna according to claim 1, it is characterised in that the coaxial feed is by feature
Impedance is that the coaxial cable of 50 Ω is constituted, and the coaxial cable inner core radius is 0.4mm, coaxial cable inner core and radiation metal patch
Piece is connected, and coaxial cable outer surface is connected with metal floor paster.
6. wideband implanted human body antenna according to claim 3, it is characterised in that the side of the plane square structure
A length of 9.42mm.
7. wideband implanted human body antenna according to claim 2, it is characterised in that the length of side of the square structure is
9.5mm, thickness is 0.635mm.
8. wideband implanted human body antenna according to claim 1, it is characterised in that the bio-compatible coating structure by
The film layer for wrapping up whole antenna is constituted, and thickness is 0.02mm.
9. wideband implanted human body antenna according to claim 3, it is characterised in that the microstrip line construction is by four kings
The deformation of shaped offset of microstrip line is obtained, and two adjacent centres of king's word one are horizontal to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621291533.0U CN206225534U (en) | 2016-11-29 | 2016-11-29 | A kind of wideband implanted human body antenna for being applied to portable medical |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621291533.0U CN206225534U (en) | 2016-11-29 | 2016-11-29 | A kind of wideband implanted human body antenna for being applied to portable medical |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206225534U true CN206225534U (en) | 2017-06-06 |
Family
ID=58787121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621291533.0U Expired - Fee Related CN206225534U (en) | 2016-11-29 | 2016-11-29 | A kind of wideband implanted human body antenna for being applied to portable medical |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106486740A (en) * | 2016-11-29 | 2017-03-08 | 华南理工大学 | A kind of wideband implanted human body antenna being applied to portable medical |
| CN110212293A (en) * | 2019-05-31 | 2019-09-06 | 天津理工大学 | A kind of miniature implanted planar inverted-F antenna for medical treatment transducer |
-
2016
- 2016-11-29 CN CN201621291533.0U patent/CN206225534U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106486740A (en) * | 2016-11-29 | 2017-03-08 | 华南理工大学 | A kind of wideband implanted human body antenna being applied to portable medical |
| CN110212293A (en) * | 2019-05-31 | 2019-09-06 | 天津理工大学 | A kind of miniature implanted planar inverted-F antenna for medical treatment transducer |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170606 Termination date: 20191129 |
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| CF01 | Termination of patent right due to non-payment of annual fee |