CN204834859U - Be applied to circular polarized antenna of complementary split ring of loading of biomedical telemetering measurement - Google Patents
Be applied to circular polarized antenna of complementary split ring of loading of biomedical telemetering measurement Download PDFInfo
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- CN204834859U CN204834859U CN201520545444.3U CN201520545444U CN204834859U CN 204834859 U CN204834859 U CN 204834859U CN 201520545444 U CN201520545444 U CN 201520545444U CN 204834859 U CN204834859 U CN 204834859U
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- paster
- polarized antenna
- circular polarized
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- radiation metal
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Abstract
The utility model discloses a be applied to circular polarized antenna of complementary split ring of loading of biomedical telemetering measurement, including antenna structure, coaxial feed structure and biological compatible coating film structure, antenna structure is by radiating the metal paster, and metal floor paster and two -layer medium base plate constitute, radiation metal paster is by the circular complementary split ring of loading and four deformation T groove part crack structure composing, two -layer medium base plate vertical stacking places, the coaxial feed structure comprises 50 omega's coaxial cable. The utility model has the characteristics of it is miniaturized, low section, the high -gain, it is anti -interference, biological compatible etc.
Description
Technical field
The utility model belongs to biomedical applications field, is specifically related to a kind of circular polarized antenna being applied to the loading complementary openings ring of biomedical telemetry.
Background technology
In recent years, along with growth in the living standard and aging population trend, the problem such as medical treatment and health supervision receives increasing concern.The developing into of tele-medicine telemetry improve diagnosis with medical level, reduce medical expenses, meet broad masses of the people's health care demand and provide brand-new medical services and experience.Radio communication, as the important component part of Telemedicine System, will affect the accuracy of whole medical procedure.Only have system to obtain Human Physiology or Biochemical Information accurately, doctor just can carry out corresponding therapeutic treatment to patient.Telemedicine System can gather human medical information by implanted equipment, and implanted equipment and external base station set up the design that one of reliable communication links key technology is implantable antenna.Due to the particularity of applied environment, the research of implantable antenna has certain difficulty and challenge.Tissue heterogeneously anisotropicly has consumption dispersive medium, the electric parameters such as the conductivity of tissue and dielectric constant are different along with the change of frequency, temperature, institutional framework and water content etc., simultaneously, human body is different and is kept in motion, electromagenetic wave radiation boundary condition can change along with human motion, thus relative to free space, implanted antenna needs to consider that human body electromagnetic property is on the impact of antenna performance.Further, for the ease of antenna implantation and avoid the biocompatible of human body, also must consider the factors such as the miniaturization of implantable antenna, biocompatibility, fail safe.
Circular polarized antenna refers to that the direction of the Electric and magnetic fields of antenna institute radiation and size are not fixing, but in a plane, forms an ellipse along with time variations.Under meeting certain condition, ellipse can become round, i.e. pure circular polarization.Relative to linear polarized antenna, circular polarized antenna has many advantages in actual applications: put arbitrarily or the electromagnetic wave of any polarization all can be received by circular polarized antenna, and the electromagnetic wave that circular polarized antenna is launched then can be received by the antenna polarized arbitrarily; Can be there is rotation direction and reverse in circularly polarised wave, so circular polarized antenna is applied to the reflection of mobile communication energy anti-multipath when inciding symmetric targets.Microstrip antenna is on a thin-medium substrate, one side encloses thin metal layer as ground plate, another side photoetching caustic solution makes the metal patch of definite shape, microstrip antenna has low section, is easy to conformal, lightweight, volume is little and the advantage such as batch production, be widely used in measuring and communication every field.Circular polarization microstrip antenna integrates the feature of microstrip antenna and circular polarized antenna, and therefore, circular polarization microstrip antenna is highly suitable for the biomedical devices being in optional position or direction of implant into body.
Utility model content
In order to overcome the deficiency that prior art exists, the utility model provides a kind of circular polarized antenna being applied to the loading complementary openings ring of biomedical telemetry.
The utility model adopts following technical scheme:
A kind of circular polarized antenna being applied to the loading complementary openings ring of biomedical telemetry, comprise antenna structure, coaxial feed and bio-compatible coating structure, described antenna structure is made up of radiation metal paster, metal floor paster and two layer medium substrate, described metal floor paster is positioned at the bottom of antenna, two layer medium substrate is printed on metal floor paster, described two layer medium substrate is made up of upper and lower layer medium substrate, and described radiation metal paster is printed in the middle of layer dielectric substrate top surface.
Described radiation metal paster is made up of circular complementary openings ring and four T-shaped gap structures of distortion.
Described circular complementary openings ring is carried in the centre of radiation metal paster, and the center of circle of this circular complementary openings ring is the center of radiation metal paster, and described four T-shaped gap structures of distortion are identical, load the surrounding of radiation metal paster.
Described two layer medium substrate longitudinal stack is placed, and the length of side of described two layer medium substrate is 8.5mm, and thickness is all 0.635mm.
The length of side of described radiation metal paster is 8mm.
Described coaxial feed is made up of the coaxial cable of 50 Ω, and described coaxial cable inner core radius is 0.4mm.
Described bio-compatible coating structure is made up of the plated film wrapping up whole antenna, and the thickness of described plated film is 0.02mm.
Described four T-shaped gap structures of distortion load the surrounding of radiation metal paster, the four edges one_to_one corresponding of concrete and radiation metal paster, and around circular complementary openings ring, the T-shaped gap structure of each distortion is symmetrical.
The beneficial effects of the utility model:
(1) antenna by loading complementary openings ring in radiation patch, introduces the metamaterial structure with negative magnetoconductivity, reduce the size of antenna;
(2) antenna is by increasing the T-shaped gap structure of four distortion on radiation patch four limit, effectively extend the radiation current length of antenna, reduce the size of antenna further, relatively common rectangular patch antenna, antenna size is less, is more conducive to being applied to biomedical device;
(3) antenna realizes the circular polarization performance of antenna by split ring, regulates the size of split ring and breach size just can easily regulate the circular polarization performance of antenna;
(4) antenna has circular polarization performance, compares common linear polarized antenna, can accept the linear polarization incoming wave of different directions, facilitate the installation of implanted equipment, reduces multipath effect in wireless communication procedure simultaneously, has stronger anti-interference;
(5) adopt biocompatible material to carry out coating film treatment to view picture antenna, reduce electromagnetic coupled, reduce the rejection of human body, the insulating properties characteristic of plated film has isolated radiation patch and the contact biological tissue with conductive features simultaneously;
(6) circular polarized antenna loading complementary openings ring has miniaturization, low section, high-gain, anti-interference, the features such as bio-compatible.
Accompanying drawing explanation
Fig. 1 (a) is vertical view of the present utility model;
Fig. 1 (b) is end view of the present utility model;
Fig. 2 is the reflection coefficient of the utility model on individual layer human skin tissue model and axial ratio analogous diagram;
Fig. 3 is the utility model 2-D directional diagram on individual layer human skin tissue model.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but execution mode of the present utility model is not limited thereto.
Embodiment
As shown in Fig. 1 (a) ~ 1 (b), a kind of circular polarized antenna being applied to the loading complementary openings ring of biomedical telemetry, is specially square structure, its length of side g
sfor 8.5mm, thickness h is 1.27mm.
Described antenna structure is by radiation metal paster 1, metal floor paster 2 and two layer medium substrate 3 are formed, described radiation metal paster by load circular complementary openings ring 4 and four distortion T-shaped gap structures 5 form, described two layer medium substrate comprises upper and lower layer medium substrate, described radiation metal paster is printed in the middle of layer dielectric substrate top surface, length of side l
afor 8mm.The described circular complementary openings ring center of circle is radiation metal paster center, its outer shroud outer radius r
afor 2.2mm, outer shroud inside radius r
bfor 1.8mm, inner ring outer radius r
cfor 1.3mm, inner ring inside radius r
dfor 0.9mm, described four T-shaped gap structures of distortion are positioned at radiation patch surrounding, and structure is just the same, length l
bfor 4.8mm, width w
afor 1.6mm, described metal floor paster is positioned at bottom.
The structures of described four T-shaped gap structures of distortion are identical, load the surrounding of radiation metal paster, the four edges one_to_one corresponding of concrete and radiation metal paster, and around circular complementary openings ring, the T-shaped gap structure of each distortion is symmetrical.
Described two layer medium substrate longitudinal stack is placed, and all adopts high dielectric constant material RO3210, its relative dielectric constant is 10.2, electrical loss angle is 0.003.The length of side g of medium substrate
sbe all 8.5mm, thickness h
1and h
2be all 0.635mm.
Described two layer medium substrate is printed on metal floor paster.
Described coaxial feed is made up of the coaxial cable 6 of 50 Ω, and described cable inner core radiation metal paster connects, and outer surface is connected with metal floor paster.
Described bio-compatible coating structure is made up of the plated film be wrapped in outside view picture antenna.Described Coating Materials adopts aluminium oxide (alumina) material, and its relative dielectric constant is 9.2, electrical loss angle is 0.008, not only has biocompatibility, has insulating properties simultaneously, and coating film thickness is 0.02mm.
As shown in Figures 2 and 3, a kind of circular polarized antenna resonance being applied to the loading complementary openings ring of biologic medical is in 2.45GHz, and have circular polarization characteristics, meanwhile, antenna also has higher gain.
The circular polarized antenna of the loading complementary openings ring of the utility model design works in industry, science, Medical Band (ISM band: 2.4 – 2.48GHz), has miniaturization, low section, high-gain, anti-interference, the features such as bio-compatible.
Above-described embodiment is the utility model preferably execution mode; but execution mode of the present utility model is not limited by the examples; change, the modification done under other any does not deviate from Spirit Essence of the present utility model and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection range of the present utility model.
Claims (8)
1. one kind is applied to the circular polarized antenna of the loading complementary openings ring of biomedical telemetry, comprise antenna structure, coaxial feed and bio-compatible coating structure, it is characterized in that, described antenna structure is made up of radiation metal paster, metal floor paster and two layer medium substrate, described metal floor paster is positioned at the bottom of antenna, two layer medium substrate is printed on metal floor paster, described two layer medium substrate is made up of upper and lower layer medium substrate, and described radiation metal paster is printed in the middle of layer dielectric substrate top surface.
2. circular polarized antenna according to claim 1, is characterized in that, described radiation metal paster is made up of circular complementary openings ring and four T-shaped gap structures of distortion.
3. circular polarized antenna according to claim 2, it is characterized in that, described circular complementary openings ring is carried in the centre of radiation metal paster, the center of circle of this circular complementary openings ring is the center of radiation metal paster, described four T-shaped gap structures of distortion are identical, load the surrounding of radiation metal paster.
4. circular polarized antenna according to claim 1, is characterized in that, described two layer medium substrate longitudinal stack is placed, and the length of side of described two layer medium substrate is 8.5mm, and thickness is all 0.635mm.
5. circular polarized antenna according to claim 1, is characterized in that, the length of side of described radiation metal paster is 8mm.
6. circular polarized antenna according to claim 1, is characterized in that, described coaxial feed is made up of the coaxial cable of 50 Ω, and described coaxial cable inner core radius is 0.4mm.
7. circular polarized antenna according to claim 1, is characterized in that, described bio-compatible coating structure is made up of the plated film wrapping up whole antenna, and the thickness of described plated film is 0.02mm.
8. circular polarized antenna according to claim 3, it is characterized in that, described four T-shaped gap structures of distortion load the surrounding of radiation metal paster, the four edges one_to_one corresponding of concrete and radiation metal paster, and around circular complementary openings ring, the T-shaped gap structure of each distortion is symmetrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520545444.3U CN204834859U (en) | 2015-07-24 | 2015-07-24 | Be applied to circular polarized antenna of complementary split ring of loading of biomedical telemetering measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520545444.3U CN204834859U (en) | 2015-07-24 | 2015-07-24 | Be applied to circular polarized antenna of complementary split ring of loading of biomedical telemetering measurement |
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| Publication Number | Publication Date |
|---|---|
| CN204834859U true CN204834859U (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520545444.3U Withdrawn - After Issue CN204834859U (en) | 2015-07-24 | 2015-07-24 | Be applied to circular polarized antenna of complementary split ring of loading of biomedical telemetering measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204834859U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024155A (en) * | 2015-07-24 | 2015-11-04 | 华南理工大学 | Circularly polarized antenna provided with complementary split rings and applied to biomedical remote sensing |
| CN109904604A (en) * | 2019-02-20 | 2019-06-18 | 湖南大学 | A kind of antenna |
| CN110061350A (en) * | 2019-05-22 | 2019-07-26 | 吉林医药学院 | The broadband circle polarized loop aerial of ingestible capsule endoscope based on graphene |
-
2015
- 2015-07-24 CN CN201520545444.3U patent/CN204834859U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024155A (en) * | 2015-07-24 | 2015-11-04 | 华南理工大学 | Circularly polarized antenna provided with complementary split rings and applied to biomedical remote sensing |
| CN105024155B (en) * | 2015-07-24 | 2018-04-27 | 华南理工大学 | A kind of circular polarized antenna of loading complementary openings ring applied to biomedical telemetry |
| CN109904604A (en) * | 2019-02-20 | 2019-06-18 | 湖南大学 | A kind of antenna |
| CN109904604B (en) * | 2019-02-20 | 2020-09-08 | 湖南大学 | Antenna |
| CN110061350A (en) * | 2019-05-22 | 2019-07-26 | 吉林医药学院 | The broadband circle polarized loop aerial of ingestible capsule endoscope based on graphene |
| CN110061350B (en) * | 2019-05-22 | 2024-04-02 | 吉林医药学院 | Wideband circularly polarized annular antenna of ingestion type capsule endoscope based on graphene |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151202 Effective date of abandoning: 20180427 |