CN108832283A - Novel flexible double frequency annular capsule antenna - Google Patents
Novel flexible double frequency annular capsule antenna Download PDFInfo
- Publication number
- CN108832283A CN108832283A CN201810619001.2A CN201810619001A CN108832283A CN 108832283 A CN108832283 A CN 108832283A CN 201810619001 A CN201810619001 A CN 201810619001A CN 108832283 A CN108832283 A CN 108832283A
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- radiation patch
- flexible
- dielectric substrate
- antenna
- annular
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Classifications
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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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00002—Operational features of endoscopes
- A61B1/00011—Operational features of endoscopes characterised by signal transmission
- A61B1/00016—Operational features of endoscopes characterised by signal transmission using wireless means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
- A61B1/041—Capsule endoscopes for imaging
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/08—Means for collapsing antennas or parts thereof
- H01Q1/085—Flexible aerials; Whip aerials with a resilient base
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biophysics (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Computer Networks & Wireless Communication (AREA)
- Details Of Aerials (AREA)
Abstract
The present invention is a kind of novel flexible double frequency annular capsule antenna, antenna includes flexible dielectric substrate and the two panels annular radiation patch and two feed ports that are arranged in flexible dielectric substrate, a piece of ring radiation patch is printed on the bottom of flexible dielectric substrate and both ends are connected with a feed port respectively, for input terminal, that is feeding point, for a ring radiation patch being attached thereto, another annular radiation patch is printed on the middle part of flexible dielectric substrate and both ends are connected with another feed port respectively, for input terminal, that is feeding point, for another ring radiation patch being attached thereto.The present invention not only can work in common two frequency ranges of capsule antenna, antenna has wider bandwidth in two frequency ranges simultaneously, it can apply and be used in Wireless capsule endoscope, and this antenna area occupied in capsule is small, the other assemblies that can leave more spaces to endoscope use.
Description
Technical field
The invention belongs to the technical fields of antenna manufacture, particularly relate to a kind of loop aerial, especially a kind of new
The flexible double frequency annular capsule antenna of type.
Background technique
" entrance " of the antenna as entire communication system signal, the quality of antenna performance directly affect whole system
Communication process, traditional antenna form and function cannot keep up with the demand of electronics miniaturization development to a certain extent, this
The developing direction for the antenna that kind is adapted with present information delivery request is small size, broadband, high efficiency, large capacity, more function
Energy is equal.It is small in size in order to meet wireless communications products, it is easy to carry, high stability etc. requirement, antenna accordingly towards planarization,
The directions such as miniaturization, broadband, large capacity, multi-functional are developed, and flexible electronic technology is an emerging electronic technology, it builds
It stands on flexible and Drawability substrate, with its unique flexible and ductility and the manufacturing process of efficient low cost, is believing
The fields such as breath, the energy, medical treatment, national defence have wide application prospect.Wherein, flexible substrate is that flexible electronic technology is different from tradition
The place most outstanding of electronic technology, flexible substrate not only have the denominator of conventional rigid substrate：Insulating properties height and resistance to compression
By force, the characteristic that it also has itself exclusive：Flexibility and film；Flexibility refer to substrate have can flexing even folding spy
Property；Film refers to that substrate thickness is very thin, can not only reduce the cost of material in this way, but also can reduce the weight of product, just because of soft
Property substrate is light-weight, flexible, impact resistance, can directly paste cutting, installation application is very convenient, can be total with curved surface
Shape, functional material and device based on flexible substrate have become the research in the fields such as electronics and material and using hot spot, capsules
Antenna is exactly one of them important application field.Electronic capsule is small in size, convenient for swallowing, can substitute gastroscope and intestines
Mirror, for detecting digestion pathological change, to reduce patient's pain, antenna is to pass through human-body biological in electronic capsule
Tissue carries out the pith of information exchange with external device in the form of an electromagnetic wave.
Loop aerial has good bandwidth, and it is a kind of omnidirectional of good performance that geometry, which simply can easily be accommodated optimization,
Antenna.It has many advantages, such as light-weight, omnidirectional's characteristic is good, it is low in cost, small in size, easily integrate with circuit board, modern wireless
It is very widely used in communication system.
Summary of the invention
The present invention provides a kind of property annular double frequency capsule antennas, which realizes double frequency function, in capsule antenna
Common two frequency ranges 400MHz and 2.45GHz can work, and have wider bandwidth, and be made on flexible substrate, can
Bending, it is easily conformal with curved surface, it can be placed in Wireless capsule endoscope and work.
In order to achieve the above object, the present invention is achieved by the following technical solutions：
The present invention is a kind of novel flexible double frequency annular capsule antenna, and antenna includes flexible dielectric substrate and is arranged in flexible media
Two panels annular radiation patch and two feed ports, a piece of ring radiation patch on substrate are printed on the bottom of flexible dielectric substrate
Portion and both ends are connected with a feed port respectively is input terminal, i.e. feeding point, for a ring radiation patch being attached thereto
Feed, another annular radiation patch be printed on the middle part of flexible dielectric substrate and both ends respectively with another feed port phase
It even, is input terminal, i.e. feeding point, for another ring radiation patch being attached thereto.
A further improvement of the present invention is that：The shape and size of two panels annular radiation patch are slightly different, are located at flexibility
The ring radiation patch of medium substrate bottom is bent twice in corresponding feed port junction, is located at flexible media base
Ring radiation patch in the middle part of plate is primary in the feed port junction bending being attached thereto, and is located in the middle part of flexible dielectric substrate
Ring radiation patch annular width be less than positioned at flexible dielectric substrate bottom ring radiation patch width.
A further improvement of the present invention is that：Two feed ports are located at flexible dielectric substrate bottom and middle part and phase
There is 90 ° of angle for the center for the cylinder that annular capsule antenna is formed.
A further improvement of the present invention is that：Be printed between the two panels annular radiation patch in flexible dielectric substrate away from
From for λ/4.
The beneficial effects of the invention are as follows：Flexible annular double frequency capsule antenna proposed by the invention, not only in capsule day
It can work in common two frequency ranges of line, while antenna has wider bandwidth in two frequency ranges, can apply wireless
Used in capsule endoscope, and this antenna area occupied in capsule is small, can leave more spaces to endoscope other
Component uses.
Flexible double frequency annular capsule antenna of the invention is printed on medium substrate flexible, flexible, can be with bending table
Face is conformal, and can be placed in human body after applying using with Wireless capsule endoscope and has good two-frequency operation effect, in glue
Common two working frequency range of capsule antenna can work normally.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is floor map of the invention.
Wherein：1- ring radiation patch；2- feed port, 3- flexible dielectric substrate.
Specific embodiment
In order to deepen the understanding of the present invention, it is described in further detail below in conjunction with the drawings and examples present invention,
The embodiment is only for explaining the present invention, does not constitute and limits to protection scope of the present invention.
As shown in Figs. 1-2, the present invention is a kind of novel flexible double frequency annular capsule antenna, and the antenna includes flexible media
Substrate 3 and the two panels annular radiation patch 1 and two feed ports 2 being arranged in the flexible dielectric substrate 3, a piece of ring
Shape radiation patch 1 is printed on the bottom of the flexible dielectric substrate 3 and both ends are connected with a feed port 2 respectively, is
Input terminal, i.e. feeding point, a ring radiation patch 1 to be attached thereto are fed, another ring radiation patch 1
The middle part and both ends for being printed on the flexible dielectric substrate 3 are connected with feed port 2 described in another respectively, are input terminal, i.e.,
Feeding point, another described ring radiation patch 1 to be attached thereto are fed, that is to say, that two panels annular radiation patch 1 is separated by
Certain distance is printed on the bottom and middle part of flexible dielectric substrate 3 respectively, and is connected respectively with feed port 2, two feed ends
Mouth 2 connects with ring radiation patch 1 respectively, is input terminal, i.e. feeding point, is located at 3 bottom of flexible dielectric substrate and middle part, respectively
It to avoid generating more serious coupling phenomenon between radiation patch, therefore is printed from plane for the feed of ring radiation patch 1
There are certain intervals in the two panels annular radiation patch 1 in flexible dielectric substrate 3, two be printed in the flexible dielectric substrate 3
The distance between piece annular radiation patch 1 is λ/4, that is to say, that the two panels radiation patch 1 of two planar annular monopoles, from flat
It is seen on face, to avoid generating more serious coupling phenomenon between radiation patch, is printed on the bottom and middle part of flexible dielectric substrate
Two panels annular radiation patch between have the distance of λ/4 or so, the shape and size of two panels annular radiation patch 1 are slightly different,
The ring radiation patch 1 positioned at 3 bottom of flexible dielectric substrate is bent in corresponding 2 junction of feed port
Twice, the ring radiation patch 1 positioned at 3 middle part of flexible dielectric substrate connects in the feed port 2 being attached thereto
The annular width for connecing place's bending once, and being located at the ring radiation patch 1 at 3 middle part of flexible dielectric substrate, which is less than, to be located at
The width of the ring radiation patch 1 of 3 bottom of flexible dielectric substrate, the institute positioned at 3 middle part of flexible dielectric substrate
It is smaller for L2 to state 1 annular width of ring radiation patch, the ring radiation patch 1 positioned at 3 bottom of flexible dielectric substrate
Width is L1, and different width is that more accurate frequency, feed port 2 are located in ring radiation patch 1 in order to obtain
Portion, and the angle of cylindrical center that two feed ports 2 are formed relative to annular capsule antenna is 90 °, this angle can allow day
Line obtains lesser standing-wave ratio and can reduce the degree of coupling of two loop antennas, and two feed ports 2 are located at described
3 bottom of flexible dielectric substrate and middle part, that is to say, that two feed ports connect with ring radiation patch, are input terminal, that is, present
Electric, respectively ring radiation patch 1 is fed, to obtain good radiation effect and work on double frequency.
Loop aerial is omnidirectional antenna, and the flexibility double frequency annular capsule antenna, two panels annular radiation patch 1 is respectively with one
Set a distance is located at the bottom and middle part of flexible dielectric substrate 3, and the folder of cylindrical center that feed port 2 is formed relative to loop antenna
Angle is 90 °, thus its in two capsule antennas often with can have good working effect in frequency range, can normal use, this is double
Frequency loop aerial is still omnidirectional, and due to the broadband properties of loop aerial, this annular double frequency capsule antenna is in two work frequencies
Duan Shangjun has wider bandwidth, reaches 2.8GHz.
The working frequency of antenna is adjusted, the working frequency of loop aerial is determined by the length of its ring radiation patch,
Therefore, the length for adjusting annular radiation patch 1, can directly adjust the working frequency of antenna, the length of ring radiation patch is got over
Long, the working frequency of antenna is then lower, since the antenna two panels annular radiating antenna respectively corresponds corresponding working frequency, so
If it is intended to changing working frequency, need to change the length of the corresponding antenna of the frequency.
The flexible double frequency annular capsule antenna is printed on medium substrate flexible, flexible, can be with curved surface
It is conformal, can using in Wireless capsule endoscope, the loop aerial can be printed on very frivolous very soft flexible dielectric material it
On, and be placed in Wireless capsule endoscope, and occupy little space, the other assemblies that can leave many spaces to endoscope make
With.
In structure, which is made of two ring radiation patches separated by a distance,
Two loop aerials are located at the bottom and middle part of flexible dielectric substrate 3, and antenna is fed by two feed ports 2, and
The angle for the cylindrical center that two feed ports 2 are formed relative to loop antenna is 90 °, includes two in same flexible dielectric substrate 3
A feeding point, respectively the two of ring radiation patch 1 feed port 2, when feed, can be used coaxial line connection and are fed.
In manufacture, the manufacturing process of the flexibility double frequency annular capsule antenna can using semiconductor technology, ceramic process,
Antenna is printed on very frivolous very soft flexible dielectric substrate, the flexibility double frequency by laser technology or printed circuit technology
Annular capsule antenna is made of 1, two feed port 2 of two panels annular radiation patch and flexible dielectric substrate 3, wherein annular spoke
It penetrates patch 1 to be made of the good conductor material of electric conductivity, be printed in flexible dielectric substrate 3, flexible dielectric substrate 3 will use
Alap flexible flexible material is lost, can be very frivolous very soft, such as：Thermoplastic polymer such as PET, PEN, polyamides
Imines PI, liquid crystal polymer LCP etc., the bottom separated by a distance for being located at flexible dielectric substrate 3 of two panels annular radiation patch 1
Portion and middle part, from plane, the ring radiation patch 1 being printed in flexible dielectric substrate 3 has certain distance and respective feedback
The angle for the cylindrical center that electric port 2 is formed relative to loop antenna is 90 °, wherein the shape of two panels annular radiation patch 1 is slightly
Difference, the ring radiation patch positioned at bottom are bent twice with feed port junction, the ring radiation patch positioned at middle part
It is L2 that primary and annular width is smaller with the bending of feed port junction, and other parts width is L1, different width be in order to
More accurate frequency is obtained, bending can change the length of loop antenna, to change the working frequency of loop antenna, therefore appropriate
Bending can allow antenna in correct band operation.
The loop antenna realizes double frequency function, the common two frequency ranges 400MHz and 2.45GHz of capsule antenna can work
Make, has wider bandwidth, and be made on flexible substrate, it is flexible, it is easily conformal with curved surface, it can be placed in wireless
It works in capsule endoscope, in addition, the antenna structure is simple and novel, occupied area is less, leaves sufficient space to wireless
The other assemblies of capsule endoscope use.
Claims (4)
1. novel flexible double frequency annular capsule antenna, the antenna includes flexible dielectric substrate（3）With setting in flexible Jie
Matter substrate（3）On two panels annular radiation patch（1）With two feed ports（2）, it is characterised in that：The a piece of ring radiation
Patch（1）It is printed on the flexible dielectric substrate（3）Bottom and both ends respectively with a feed port（2）It is connected, is
Input terminal, for a ring radiation patch being attached thereto（1）Feed, another ring radiation patch（1）Printing
In the flexible dielectric substrate（3）Middle part and both ends respectively with feed port described in another（2）It is connected, is input terminal.
2. novel flexible double frequency annular capsule antenna according to claim 1, it is characterised in that：Positioned at the flexible media base
Plate（3）The ring radiation patch of bottom（1）In corresponding feed port（2）Junction is bent twice, is located at institute
State flexible dielectric substrate（3）The ring radiation patch at middle part（1）In the feed port being attached thereto（2）Junction is curved
Folding is primary, and is located at the flexible dielectric substrate（3）The ring radiation patch at middle part（1）Annular width be less than be located at institute
State flexible dielectric substrate（3）The ring radiation patch of bottom（1）Width.
3. novel flexible double frequency annular capsule antenna according to claim 1, it is characterised in that：Two feed ports
（2）It is located at the flexible dielectric substrate（3）Bottom and middle part and the center of the cylinder formed relative to annular capsule antenna
There is 90 ° of angle.
4. novel flexible double frequency annular capsule antenna according to claim 1, it is characterised in that：It is printed on the flexible media
Substrate（3）On two panels annular radiation patch（1）The distance between be λ/4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810619001.2A CN108832283A (en) | 2018-06-15 | 2018-06-15 | Novel flexible double frequency annular capsule antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810619001.2A CN108832283A (en) | 2018-06-15 | 2018-06-15 | Novel flexible double frequency annular capsule antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108832283A true CN108832283A (en) | 2018-11-16 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810619001.2A Pending CN108832283A (en) | 2018-06-15 | 2018-06-15 | Novel flexible double frequency annular capsule antenna |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109921186A (en) * | 2019-03-04 | 2019-06-21 | 南京邮电大学 | A kind of monopole capsule antenna of flexibility racemosus section bow-shaped structural |
| CN110571516A (en) * | 2019-10-16 | 2019-12-13 | 福州大学 | Z-shaped coupling feed small-sized directional circularly polarized RFID reader antenna |
| CN111012290A (en) * | 2019-12-20 | 2020-04-17 | 浙江清华柔性电子技术研究院 | Conformal capsule antenna structure, preparation method and wireless capsule endoscope system |
| CN111885355A (en) * | 2020-07-21 | 2020-11-03 | 深圳市资福医疗技术有限公司 | Communication method of capsule endoscope |
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2018
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109921186A (en) * | 2019-03-04 | 2019-06-21 | 南京邮电大学 | A kind of monopole capsule antenna of flexibility racemosus section bow-shaped structural |
| CN110571516A (en) * | 2019-10-16 | 2019-12-13 | 福州大学 | Z-shaped coupling feed small-sized directional circularly polarized RFID reader antenna |
| CN110571516B (en) * | 2019-10-16 | 2024-02-06 | 福州大学 | Z-shaped coupling feed small-sized directional circularly polarized RFID reader antenna |
| CN111012290A (en) * | 2019-12-20 | 2020-04-17 | 浙江清华柔性电子技术研究院 | Conformal capsule antenna structure, preparation method and wireless capsule endoscope system |
| CN111885355A (en) * | 2020-07-21 | 2020-11-03 | 深圳市资福医疗技术有限公司 | Communication method of capsule endoscope |
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| PB01 | Publication | ||
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Application publication date: 20181116 |