CN209056591U - A kind of conformal medium resonator antenna of spill - Google Patents
A kind of conformal medium resonator antenna of spill Download PDFInfo
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- CN209056591U CN209056591U CN201821979046.2U CN201821979046U CN209056591U CN 209056591 U CN209056591 U CN 209056591U CN 201821979046 U CN201821979046 U CN 201821979046U CN 209056591 U CN209056591 U CN 209056591U
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- spill
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Abstract
The utility model discloses a kind of conformal medium resonator antennas of spill, comprising: dielectric resonator, floor, medium substrate, feedback seam and feeder line；The floor is conformal with dielectric resonator, and dielectric resonator is fixed among floor；Medium substrate upper and lower surfaces fit over floor and feeder line respectively；On floor, center etch goes out to present seam；The antenna is fed by feeder line, and then electromagnetic wave energy is conducted by the feedback slot coupling on floor to the dielectric resonator of upper surface.Utility model has the advantages that reducing antenna in vertical direction the space occupied size due to for conformal structure, possessing extremely low section；Handling ease；Wear structure, application field is extensive and application scenarios are flexible；With higher gain and narrower wave beam；Possess broader bandwidth.
Description
Technical field
The utility model relates to conformal wearable antenna technical field, in particular to a kind of conformal dielectric resonator day of spill
Line.
Background technique
With the fast development of wireless communication technique, people are also higher and higher to the portability requirements of wireless telecom equipment,
Various wearable devices emerge one after another, this just promotes wireless telecom equipment to develop towards conformalization direction.
So far, the conformal antenna in industry is mostly based on microstrip antenna, this kind of antenna uses flexible base board such as: 1, gathering
The organic flexibles medium such as acid imide, polyethylene terephthalate, polylactic acid, printing paper；2, the weaving textiles such as felt, woven fabric and
At.Its metal patch application flexibility copper foil or conductive fabric.But medium resonator antenna is not applied to low section
In conformal equipment, and medium resonator antenna is compared to microstrip antenna, possess wide bandwidth, high polarization purity, high design freedom,
More radiation modes etc. are many a little, can requirement with the conformal system of further satisfaction to antenna.
Traditional sucrose resonant aerial is applied to plane, flat floor, and image theory can be applied to dielectric resonator
Antenna seeks Theory Solution.Wherein model solution is sent out in the waveguide of Rectangular Enclosure with Participating Media resonant aerial applicating medium；Cylindrical dielectric resonator antenna
Empirical equation is mostly used to solve；(partly) is spherical and spheroid shape medium resonator antenna is due to its boundary rule, can use multilayer dielectricity
Method seeks strict solution；The medium resonator antennas such as triangle, sector, annular, truncation annular mostly use empirical equation and Cavity theory
It solves.Spill medium resonator antenna on conformal floor can be considered as the change that annular medium resonator antenna is truncated on the plate of level land
Body, however, traditional Cavity theory because having done excessive approximation, is not included in the reasons such as leaky wave outside medium resonator antenna, essence
Spend bad, applicability is not wide.
Utility model content
The utility model in view of the drawbacks of the prior art, provides a kind of conformal medium resonator antenna of spill and its work
Method can effectively solve the above-mentioned problems of the prior art.
In order to realize that the above goal of the invention, the technical solution that the utility model is taken are as follows:
A kind of conformal medium resonator antenna of spill, comprising: dielectric resonator 1, floor 2, medium substrate 3, feedback seam 4 and feedback
Line 5；
The floor 2 and dielectric resonator 1 are conformal, and dielectric resonator 1 is fixed among floor 2, and 2 material of floor is copper
Foil；
3 upper and lower surfaces of medium substrate fit over floor 2 and feeder line 4 respectively；On floor, 2 center etch goes out to present seam 4；
The antenna is fed by feeder line 5, and then electromagnetic wave energy passes through the 4 coupling conduction of feedback seam on floor 2 to upper surface
Dielectric resonator 1.
Further, dielectric resonator 1 is made of alumina ceramic material, relative dielectric constant 9.8, and internal diameter is
17mm, with a thickness of 4mm, radian is 60 degree, width 10mm；
Further, medium substrate 3 is laminate, is made of FR-4 material, the relative dielectric constant of medium substrate 3 is
4.4, with a thickness of 1mm, the radian of medium substrate 3 is 90 degree, internal diameter 21mm, width 20mm.
Further, feeder line 5 is copper microstrip line, and 5 width of feeder line is 2mm, and feeder line 5 is more than that feedback 4 centre distances of seam are 4mm,
Feedback seam 4 width 1.5mm, length 5mm.
Compared with prior art utility model has the advantages that
1. constructing accurate approximate mould by field distribution and border structure in the analysis conformal medium resonator antenna of spill
Type.
2. by using cylindrical wave function, it is based on accurate model, theory solves to obtain the conformal medium resonator antenna of spill
Resonance frequency and internal field.
3. realizing the performance of narrow beam, high-gain by using concave floorboard and spill dielectric resonator.It is wearable.
4. another using lateral feed antenna generally low section conformal structure, floor is cracked coupling, and reduction antenna is vertical
Direction the space occupied size；Floor and spill antenna are conformal, can be applied to curved surface, are suitable for wearable device；It is overall
It is simple for structure, and it is equipped with mature theoretical solution and design method, greatly reduce design and applies difficulty.By by plane day
Line becomes spill, reduces the beam angle of antenna, obtains higher gain；The antenna is designed based on medium resonator antenna,
Compared to traditional microstrip antenna, possess broader bandwidth.It can be readily appreciated that portable strong.
Detailed description of the invention
Fig. 1 is the main view of the utility model embodiment spill medium resonator antenna；
Fig. 2 is the rearview of the utility model embodiment spill medium resonator antenna；
Fig. 3 is the top view of the utility model embodiment spill medium resonator antenna；
Fig. 4 is the spill medium resonator antenna (ArcDRA) and conventional planar medium resonator antenna of the utility model
(RDRA) and the comparison diagram of spill microstrip antenna (ArcMPA) port S parameter curve；
Fig. 5 is the spill medium resonator antenna (ArcDRA) and planar medium resonant aerial (RDRA) of the utility model
And spill microstrip antenna (ArcMPA) is in the face H (radian to) directional diagram comparison diagram of resonance frequency point；
Fig. 6 is the spill medium resonator antenna (ArcDRA) and planar medium resonant aerial (RDRA) of the utility model
And spill microstrip antenna (ArcMPA) is in the face E (width to) directional diagram comparison diagram of resonance frequency point；
Fig. 7 is soft with emulation obtained by the analytic solution of the first four mode of the spill medium resonator antenna of the utility model
Part is resulting, resonance frequency with antenna width change curve comparison diagram.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below in conjunction with attached drawing and reality is enumerated
Example is applied, the utility model is described in further details.
A kind of conformal medium resonator antenna of spill, comprising: dielectric resonator 1, floor 2, medium substrate 3, feedback seam 4 and feedback
Line 5；
The floor 2 and dielectric resonator 1 are conformal, and dielectric resonator 1 is fixed among floor 2 with epoxy resin glue,
2 material of floor is copper foil.
3 upper and lower surfaces of medium substrate fit over floor 2 and feeder line 4 respectively；The feedback seam 4 etched on floor 2, institute
It states feedback seam 4 and is set to 2 center of floor.
The antenna is fed by feeder line 5, and then electromagnetic wave energy passes through the 4 coupling conduction of feedback seam on floor 2 to upper surface
Dielectric resonator 1.
Dielectric resonator 1 is made of alumina ceramic material, relative dielectric constant 9.8, internal diameter 17mm, with a thickness of
4mm, radian are 60 degree, width 10mm；
Medium substrate 3 is laminate, is made of FR-4 material, the relative dielectric constant of medium substrate 3 is 4.4, thickness
For 1mm, the radian of medium substrate 3 is 90 degree, internal diameter 21mm, width 20mm.
Feeder line 5 is copper microstrip line, and 5 width wms of feeder line is 2mm, and feeder line 5 is more than that 4 center lstub of feedback seam are 4mm, feedback seam 4
Width 1.5mm, length 5mm.To make the antenna and feed structure matched well.
The antenna of the utility model is using lateral feed.The purpose for the arrangement is that being occupied to reduce antenna in vertical direction
Space size.
The design and working principle of the conformal medium resonator antenna of the spill of the utility model and its theory are as follows: using circle
Mode-solving techniques under cylindrical coordinate, single mode assume under the premise of, using the separation of variable solve antenna resonance frequency (~
7.6GHz) with interior field distribution.After acquiring the theoretical resonance mode of antenna, fed according to traditional cutler feed theory
The parameter of structure, it is magnetic field maximum in antenna that feedback, which is stitched at 4, and direction is consistent with interior magnetic direction, and energy is made to pass through feedback 4 couplings of seam
It closes in antenna.In radiation, the radiation mechanism of the antenna is similar to an arc to the spill magnetic dipole of placement, radiation energy
Since concave structure converges, narrow beam and high-gain are obtained；
By constructing theoretical model, after Mode-solving techniques, the working frequency of the antenna can be acquired by following formula
Jm(krb)Y′m(kra)-J′m(kra)Ym(krB)=0
Wherein f0Indicate antenna resonant frequency, k0For free space wave number, εrFor medium block relative dielectric constant, μrTo be situated between
Mass relative permeability, Jm(x) and YmIt (x) is the first and second class Bessel function, a, b are lower camber side half on spill dielectric resonator
Diameter, β are dielectric resonator radian, and d is the half of dielectric resonator thickness, remaining parameter is auxiliary variable.
The antenna is designed based on medium resonator antenna, compared to traditional microstrip antenna, possesses broader bandwidth.It benefits
In its arcuate structure, conformal wearable device can be applied to antenna.
Fig. 4 is the spill medium resonator antenna (ArcDRA) and conventional planar medium resonator antenna of the utility model
(RDRA) and the comparison of spill microstrip antenna (ArcMPA) port S parameter curve.It can see that, the spill medium resonator antenna
There is broader bandwidth compared to traditional spill microstrip antenna.
Fig. 5 is the spill medium resonator antenna (ArcDRA) and planar medium resonant aerial (RDRA) of the utility model
In the face H (radian to) directional diagram comparison of resonance frequency point.It can see that, which puts down compared to traditional
Face rectangular microstrip antenna has narrower wave beam, has apparent wave beam convergence to act on, there is apparent lobe zero point.
The spill medium resonator antenna (ArcDRA) and spill microstrip antenna (ArcMPA) that Fig. 6 is the utility model are humorous
It shakes the face E (width to) directional diagram comparison of frequency point.It can see that, in close resonance frequency table, the spill medium resonator antenna
There is high gain compared to traditional spill microstrip antenna.
Fig. 7 is soft with emulation obtained by the analytic solution of the first four mode of the spill medium resonator antenna of the utility model
Part is resulting, resonance frequency with antenna width change curve comparison.It can see that, the parsing of the spill medium resonator antenna
Solution possesses superior accuracy.
Those of ordinary skill in the art will understand that the embodiments described herein, which is to help reader, understands this reality
With novel implementation method, it should be understood that the protection scope of the utility model is not limited to such special statement and implementation
Example.Those skilled in the art can make according to the technical disclosures disclosed by the utility model various does not depart from this reality
With novel substantive various other specific variations and combinations, these variations and combinations are still in the protection scope of the utility model
It is interior.
Claims (4)
1. a kind of conformal medium resonator antenna of spill characterized by comprising dielectric resonator (1), floor (2), medium base
Plate (3), feedback seam (4) and feeder line (5)；
The floor (2) and dielectric resonator (1) are conformal, and dielectric resonator (1) is fixed among floor (2), floor (2) material
For copper foil；
Medium substrate (3) upper and lower surfaces fit over floor (2) and feeder line (5) respectively；On floor, (2) center etch goes out to present seam
(4)；
The antenna is fed by feeder line (5), and then electromagnetic wave energy conducts supreme table by feedback seam (4) coupling on floor (2)
The dielectric resonator (1) in face.
2. the conformal medium resonator antenna of a kind of spill according to claim 1, it is characterised in that: dielectric resonator (1)
It is made of alumina ceramic material, relative dielectric constant 9.8, internal diameter 17mm, with a thickness of 4mm, radian is 60 degree, width
For 10mm.
3. the conformal medium resonator antenna of a kind of spill according to claim 2, it is characterised in that: medium substrate (3) is
Laminate is made of FR-4 material, and the relative dielectric constant of medium substrate (3) is 4.4, with a thickness of 1mm, medium substrate (3)
Radian be 90 degree, internal diameter 21mm, width 20mm.
4. the conformal medium resonator antenna of a kind of spill according to claim 3, it is characterised in that: feeder line (5) is that copper is micro-
Band line, feeder line (5) width are 2mm, and feeder line (5) is more than that feedback seam (4) centre distance is 4mm, feedback seam (4) width 1.5mm, length
5mm。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821979046.2U CN209056591U (en) | 2018-11-27 | 2018-11-27 | A kind of conformal medium resonator antenna of spill |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821979046.2U CN209056591U (en) | 2018-11-27 | 2018-11-27 | A kind of conformal medium resonator antenna of spill |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109390673A (en) * | 2018-11-27 | 2019-02-26 | 成都北斗天线工程技术有限公司 | A kind of conformal medium resonator antenna of spill and its working method |
| CN110323554A (en) * | 2019-07-04 | 2019-10-11 | 西安电子科技大学 | Broad beam medium resonator antenna based on embedded metal column |
| CN110729551A (en) * | 2019-10-31 | 2020-01-24 | 电子科技大学 | Concave conformal wide-beam high-gain dual-frequency dielectric resonator antenna and working method |
| CN110729555A (en) * | 2019-10-31 | 2020-01-24 | 电子科技大学 | Multi-frequency conformal antenna with headspace zero and working method |
-
2018
- 2018-11-27 CN CN201821979046.2U patent/CN209056591U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109390673A (en) * | 2018-11-27 | 2019-02-26 | 成都北斗天线工程技术有限公司 | A kind of conformal medium resonator antenna of spill and its working method |
| CN109390673B (en) * | 2018-11-27 | 2023-06-09 | 成都北斗天线工程技术有限公司 | Concave conformal dielectric resonator antenna and working method thereof |
| CN110323554A (en) * | 2019-07-04 | 2019-10-11 | 西安电子科技大学 | Broad beam medium resonator antenna based on embedded metal column |
| CN110729551A (en) * | 2019-10-31 | 2020-01-24 | 电子科技大学 | Concave conformal wide-beam high-gain dual-frequency dielectric resonator antenna and working method |
| CN110729555A (en) * | 2019-10-31 | 2020-01-24 | 电子科技大学 | Multi-frequency conformal antenna with headspace zero and working method |
| CN110729551B (en) * | 2019-10-31 | 2021-04-09 | 电子科技大学 | Concave conformal wide-beam high-gain dual-frequency dielectric resonator antenna and working method |
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