CN206962015U - A kind of wide band miniaturization suitable for MICS frequency ranges is implanted into antenna - Google Patents
A kind of wide band miniaturization suitable for MICS frequency ranges is implanted into antenna Download PDFInfo
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- CN206962015U CN206962015U CN201720702160.XU CN201720702160U CN206962015U CN 206962015 U CN206962015 U CN 206962015U CN 201720702160 U CN201720702160 U CN 201720702160U CN 206962015 U CN206962015 U CN 206962015U
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Abstract
The utility model discloses a kind of wide band miniaturization suitable for MICS frequency ranges to be implanted into antenna, including：Antenna substrate, the radiation patch being attached on antenna substrate, the magnet plate being arranged under antenna substrate, the antenna ground plate under magnet plate, it is covered in radiation patch and there is the insulating barrier of bio-compatibility.A kind of wide band miniaturization suitable for MICS frequency ranges is provided and is implanted into antenna, the utility model is MICS frequency ranges in covering medical treatment implantation communication service（402‑405MHz）On the basis of, the size of antenna is not only reduced, and increase the bandwidth of antenna.
Description
Technical field
Antenna technical field is the utility model is related to, particularly a kind of wide band miniaturization suitable for MICS frequency ranges is planted
Enter antenna.
Background technology
Antenna (Implantable Antenna) is implanted into, is placed in the implantable medical device of inside of human body with setting in vitro
A standby key element for carrying out radio communication.As the implanted equipment for health service is more and more closed
Note, it have developed including a variety of electricity such as pacemaker, cochlear implant and Vitreous cavity antennas for retina prosthese
Son implantation equipment.It is the plant with the optimization of antenna radiation performance and size balance unlike target from traditional miniature antenna
Enter formula antenna because of special working environment, determine that the size of antenna is as far as possible small.
Because the working environment of antenna is human body, the dielectric constant that human body is respectively organized all varies with frequency, so human body
The emulation modeled to antenna performance is most important.Generally, simple manikin can with individual layer or three layers of medium box model come
Instead of.Individual layer for skin model, three layers form for skin, fat and muscle model.
But implantation antenna frequency band is narrow at present, and because inside of human body biological tissue is uneven, their dielectric
Constant is dispersion, and tissue profile and implantation position Bu Tong can also have an impact to the radiation characteristic of antenna, impacted
Frequency band shifts afterwards, so market needs a kind of wide band miniaturization suitable for MICS frequency ranges to be implanted into antenna, existing skill
Art does not solve the problem of so also.
Utility model content
To solve the deficiencies in the prior art, the purpose of this utility model is to provide a kind of wideband suitable for MICS frequency ranges
The miniaturization implantation antenna of band, the utility model is in covering medical treatment implantation communication service (MICS) frequency range (402-405MHz)
On the basis of, the size of antenna is not only reduced, and increase the bandwidth of antenna.
In order to realize above-mentioned target, the utility model adopts the following technical scheme that：
A kind of wide band miniaturization suitable for MICS frequency ranges is implanted into antenna, including：Antenna substrate, it is attached to antenna base
Radiation patch on plate, the magnet plate being arranged under antenna substrate, the antenna ground plate under magnet plate, it is covered in radiation patch
On piece and with bio-compatibility insulating barrier.
A kind of foregoing wide band miniaturization suitable for MICS frequency ranges is implanted into antenna, and radiation patch bending is attached to day
On line substrate, radiation patch composition has：Radiation patch body, the bending part between radiation patch body.
A kind of foregoing wide band miniaturization suitable for MICS frequency ranges is implanted into antenna, and the width of bending part is more than radiation
Paster body width.
A kind of foregoing wide band miniaturization suitable for MICS frequency ranges is implanted into antenna, and the width of radiation patch body is
1mm, the width of bending part is 2mm.
A kind of foregoing wide band miniaturization suitable for MICS frequency ranges is implanted into antenna, and antenna substrate is provided with and realizes mesh
Mark the power feed hole and short circuit hole of frequency band.
A kind of foregoing wide band miniaturization suitable for MICS frequency ranges is implanted into antenna, and antenna ground plate bottom is provided with energy
Enough widen the open slot of antenna frequency band.
A kind of foregoing wide band miniaturization suitable for MICS frequency ranges is implanted into antenna, and antenna substrate is FR4 FR4 rings
Oxygen glass mat.
A kind of foregoing wide band miniaturization suitable for MICS frequency ranges is implanted into antenna, and magnet plate is NiCo ferrites
Plate.
A kind of foregoing wide band miniaturization suitable for MICS frequency ranges is implanted into antenna, and insulating barrier is novolac resin layer.
A kind of foregoing wide band miniaturization suitable for MICS frequency ranges is implanted into antenna, and the size for being implanted into antenna is
17mm*8mm*0.8mm。
It is of the present utility model to be beneficial in that：The utility model provides a kind of suitable for the wide band small of MICS frequency ranges
Typeization is implanted into antenna, realizes following beneficial effect：1) using FR4 materials as antenna substrate, while on aerial radiation paster
The phenolic resin that layer covering a layer thickness is 1mm, realizes bio-compatibility and insulating properties, ensures that antenna can after human body is implanted into
Normal work；2) only slotted on floor, antenna is produced multiple resonance, realize broadband, cover medical treatment implantation communication service
(MICS) frequency range (402-405MHz)；3) a layer thickness 0.02mm NiCo ferrites are with the addition of above earth plate, utilize iron
The electromagnetic property of oxysome, meet it is wide band simultaneously, realize the miniaturization of antenna；4) by adjusting power feed hole and short circuit hole
Position realize target band；5) folding type cabling is used, so as to reduce the volume of antenna.
Brief description of the drawings
Fig. 1 is a kind of sectional view of embodiment of the present utility model；
Fig. 2 is a kind of structural representation of embodiment of the utility model radiation patch；
Fig. 3 is a kind of structural representation of embodiment of the utility model open slot；
Fig. 4 is this antenna S11 Parameter Maps；
Fig. 5 is directional diagram of this antenna in xz planes；
Fig. 6 is directional diagram of this antenna in yz planes；
Fig. 7 is the gain diagram of this antenna；
The implication of reference in figure：
1 antenna substrate, 101 power feed holes, 102 short circuit holes, 2 radiation patch, 201 radiation patch bodies, 202 bending parts, 3
Magnet plate, 4 antenna ground plates, 5 insulating barriers, 6 open slots, 601 first open slots, 602 second open slots, 603 the 3rd openings
Groove.
Embodiment
Make specific introduce to the utility model below in conjunction with the drawings and specific embodiments.
A kind of wide band miniaturization suitable for MICS frequency ranges is implanted into antenna, including：Antenna substrate, it is attached to antenna base
Radiation patch on plate, the magnet plate being arranged under antenna substrate, the antenna ground plate under magnet plate, it is covered in radiation patch
On piece and with bio-compatibility insulating barrier.
Radiation patch bending is attached on antenna substrate, and radiation patch composition has：Radiation patch body, positioned at radiation patch
Bending part between body.In order to reduce the volume of antenna, radiation patch uses folding type cabling so that is implanted into the size of antenna
For 17mm*8mm*0.8mm；The width of bending part is more than radiation patch body width.As a kind of embodiment；The branch of radiation patch
Bar width is 1mm, and the gap between branch and branch is also 1mm, and in the bending place of antenna paper slip, the width increase of paster is
2mm。
Punched on antenna substrate, the power feed hole in left side is used for being fed, the short circuit hole on right side as antenna short circuit point,
Paster is set to be linked with floor, the impedance matching of the position of power feed hole and short circuit hole to antenna has considerable influence, can pass through regulation
Realize target band in the two position.The relative position of power feed hole and short circuit hole affects the input impedance of antenna, by changing two
The distance of person, the situation that input impedance is 50ohm is found, realizes the impedance matching of antenna.
As shown in figure 3, antenna ground plate bottom is provided with the open slot that can widen antenna frequency band；Open slot group membership：It is long
Degree influences the first open slot of the resonance point of antenna low frequency part, the second opening of the resonance point of effect length antenna HFS
Groove, connect the 3rd open slot between the first open slot and the second open slot.Earth plate grooving techniques are changed using fluting
Current path, change antenna resonance by changing current path, be allowed to produce multiband, so bandwidth can also increase therewith
Add.As shown in figure 4, return loss (S11) parameter of implantation antenna, it can be seen that after the fluting of floor, adds electric current
Path so that this antenna only has that the radiation characteristic of single resonance is different from tradition implantation antenna, and one is formd newly in high frequency treatment
Resonance, bandwidth is added, on the premise of MICS frequency ranges are covered, realize wide band performance.The length and width of open slot and position
The performance for all affecting antenna is put, the length of the first open slot mainly affects the resonance point of antenna low frequency part, increase fluting
Length can make resonance center to low frequency move；The length of second open slot mainly influences the resonance point of antenna HFS, increases
Increasing slot length can be such that resonance center is moved to low frequency.Change electric current by changing the length of the open slot of open slot first, make
Obtain electric current to flow along open slot, increase current path, change the frequency of antenna low frequency part；After antenna fluting, Ke Yituo
Wide antenna frequency band.
As a preferred embodiment, antenna substrate is FR4 epoxy glass fiber plates；The size of FR4 material plates is 17mm*8mm*
The relative dielectric constant of 0.8mm, FR4 material is 4.4, loss tangent 0.02.Caused by preventing that tissue liquid is possible
The short circuit of antenna, influences the performance of antenna, the insulating barrier that a layer thickness is 1mm is covered above radiation patch, as one
Kind preferred, insulating barrier is novolac resin layer, and the relative dielectric constant of phenolic resin is 4.8, can realize bio-compatibility and absolutely
Edge, ensure that antenna being capable of normal work after human body is implanted into.
In order to reduce antenna Q values (Q=1/BW, BW are the beamwidth of antenna) increase bandwidth, in antenna substrate and antenna ground plate
Between magnet plate, as a preferred embodiment, magnet plate is NiCo ferrite-plates, other can also be used to have the material of high magnetic permeability
Matter, NiCo ferrites are the selections of a cost performance.High magnetic permeability can make antenna size diminish, and the thickness of NiCo ferrite-plates is
0.02mm.NiCo ferrites (εr=7.59, μ=13), it is that one kind has ferromagnetic metal oxide, for electrical characteristics,
Ferritic resistivity ratio metal, alloy material will be big, but also have higher dielectric properties, while in terms of magnetic property
Also show higher magnetic conductivity.Using ferritic electromagnetic property, realize meet it is wide band simultaneously, realize the small of antenna
Type.
As shown in figure 4, it is this antenna S11 Parameter Maps；S11 is one in S parameter, is represented between frequency and return loss
Relation.The value of S11 parameters is bigger, represents that the energy that antenna reflects in itself is bigger, the efficiency of such antenna is poorer.My god
Line -10dB is with a width of 388.8MHz-994.3MHz, compared to existing implantable antenna (can only typically cover 402-405MHz),
The wide band characteristic realized.Frequency band is wider, and the ability of this Antenna Anti-jamming is stronger, how to become no matter frequency band is impacted
Change can coverage goal frequency band.
As shown in Figure 5,6 be directional diagram of the antenna in xz and yz planes, it can be seen that entering on antenna floor
After row slot treatment, antenna has good directionality.
The utility model provides a kind of wide band miniaturization suitable for MICS frequency ranges and is implanted into antenna, realizes following beneficial
Effect：1) using FR4 materials as antenna substrate, while the phenolic aldehyde that a layer thickness is 1mm is covered on aerial radiation paster upper strata
Resin, bio-compatibility and insulating properties are realized, ensure that antenna being capable of normal work after human body is implanted into；2) only slotted on floor,
Antenna is produced multiple resonance, realize broadband, cover medical treatment implantation communication service (MICS) frequency range (402-405MHz), such as scheme
Antenna gain pattern shown in 7, in MICS frequency ranges, antenna gain -29dB, meet the basic demand of data transfer.3) in earth plate
Top with the addition of a layer thickness 0.02mm NiCo ferrites, using ferritic electromagnetic property, meet it is wide band simultaneously,
Realize the miniaturization of antenna；4) target band is realized by adjusting the position of power feed hole and short circuit hole；5) walked using folding type
Line, so as to reduce the volume of antenna.
General principle, principal character and advantage of the present utility model has been shown and described above.The technical staff of the industry
It should be appreciated that above-described embodiment does not limit the utility model in any form, it is all by the way of equivalent substitution or equivalent transformation
The technical scheme obtained, all falls within the scope of protection of the utility model.
Claims (10)
1. a kind of wide band miniaturization suitable for MICS frequency ranges is implanted into antenna, it is characterised in that including：Antenna substrate, it is attached
The magnet plate in the radiation patch on antenna substrate, being arranged under above-mentioned antenna substrate, the antenna ground under magnet plate
Plate, it is covered in radiation patch and there is the insulating barrier of bio-compatibility.
2. a kind of wide band miniaturization suitable for MICS frequency ranges according to claim 1 is implanted into antenna, its feature exists
In above-mentioned radiation patch bending is attached on antenna substrate, and above-mentioned radiation patch composition has：Radiation patch body, positioned at radiation
Bending part between paster body.
3. a kind of wide band miniaturization suitable for MICS frequency ranges according to claim 2 is implanted into antenna, its feature exists
In the width of above-mentioned bending part is more than radiation patch body width.
4. a kind of wide band miniaturization suitable for MICS frequency ranges according to claim 3 is implanted into antenna, its feature exists
In the width of above-mentioned radiation patch body is 1mm, and the width of above-mentioned bending part is 2mm.
5. a kind of wide band miniaturization suitable for MICS frequency ranges according to claim 1 is implanted into antenna, its feature exists
In above-mentioned antenna substrate is provided with the power feed hole and short circuit hole for realizing target band.
6. a kind of wide band miniaturization suitable for MICS frequency ranges according to claim 1 is implanted into antenna, its feature exists
In above-mentioned antenna ground plate bottom is provided with the open slot that can widen antenna frequency band.
7. a kind of wide band miniaturization suitable for MICS frequency ranges according to claim 1 is implanted into antenna, its feature exists
In above-mentioned antenna substrate is FR4 epoxy glass fiber plates.
8. a kind of wide band miniaturization suitable for MICS frequency ranges according to claim 1 is implanted into antenna, its feature exists
In magnet plate is NiCo ferrite-plates.
9. a kind of wide band miniaturization suitable for MICS frequency ranges according to claim 1 is implanted into antenna, its feature exists
In above-mentioned insulating barrier is novolac resin layer.
10. a kind of wide band miniaturization suitable for MICS frequency ranges according to claim 1 is implanted into antenna, its feature exists
In the size of above-mentioned implantation antenna is 17mm*8mm*0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720702160.XU CN206962015U (en) | 2017-06-16 | 2017-06-16 | A kind of wide band miniaturization suitable for MICS frequency ranges is implanted into antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720702160.XU CN206962015U (en) | 2017-06-16 | 2017-06-16 | A kind of wide band miniaturization suitable for MICS frequency ranges is implanted into antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206962015U true CN206962015U (en) | 2018-02-02 |
Family
ID=61379327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720702160.XU Withdrawn - After Issue CN206962015U (en) | 2017-06-16 | 2017-06-16 | A kind of wide band miniaturization suitable for MICS frequency ranges is implanted into antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206962015U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107275773A (en) * | 2017-06-16 | 2017-10-20 | 南京信息工程大学 | A kind of wide band miniaturization suitable for MICS frequency ranges is implanted into antenna |
| CN113839202A (en) * | 2021-08-12 | 2021-12-24 | 南京信息工程大学 | Implanted antenna based on electromyographic signal transmission |
-
2017
- 2017-06-16 CN CN201720702160.XU patent/CN206962015U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107275773A (en) * | 2017-06-16 | 2017-10-20 | 南京信息工程大学 | A kind of wide band miniaturization suitable for MICS frequency ranges is implanted into antenna |
| CN107275773B (en) * | 2017-06-16 | 2023-06-16 | 南京信息工程大学 | Broadband miniaturized implantation antenna suitable for MICS frequency band |
| CN113839202A (en) * | 2021-08-12 | 2021-12-24 | 南京信息工程大学 | Implanted antenna based on electromyographic signal transmission |
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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: 20180202 Effective date of abandoning: 20230616 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180202 Effective date of abandoning: 20230616 |