CN106410383A - Low-loss unequal-angle-transformation electromagnetic energy collection antenna - Google Patents
Low-loss unequal-angle-transformation electromagnetic energy collection antenna Download PDFInfo
- Publication number
- CN106410383A CN106410383A CN201610813899.8A CN201610813899A CN106410383A CN 106410383 A CN106410383 A CN 106410383A CN 201610813899 A CN201610813899 A CN 201610813899A CN 106410383 A CN106410383 A CN 106410383A
- Authority
- CN
- China
- Prior art keywords
- point
- rotating graphs
- medium substrate
- line segment
- antenna
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
Abstract
The invention discloses a low-loss unequal-angle-transformation electromagnetic energy collection antenna, comprising a dielectric covering layer, a dielectric substrate and an earth plate which fit with each other from top to bottom. The sizes of the dielectric covering layer, the dielectric substrate and the earth plate are consistent. A metal antenna patch, a guider and a reflector are attached on the side of the dielectric substrate fitting the dielectric covering layer. A cylindrical metal conductor which penetrates the dielectric substrate is arranged in the middle part of the dielectric substrate. A round hole which is concentric to the bottom surface of the cylindrical metal conductor is arranged on the earth plate. According to the antenna, the return loss is relatively low, the impedance matching and a standing-wave ratio are better and the gain is relatively high, so the radio frequency energy in an environment can be received efficiently.
Description
Technical field
The invention belongs to electromagnetic energy reception antenna technical field is and in particular to one kind is used for receiving RF energy in environment
Low-loss not equiangular transformation electromagnetic energy collect antenna.
Background technology
Compare three kinds of wireless transmission methods of current main flow, that is, way of electromagnetic induction, means of electromagnetic waves and magnetic coupling are humorous
Shake mode.Analyze the respective pluses and minuses of these three modes, such as transmission range, through-put power, efficiency of transmission and range of application,
Find that electromagnetic wave wireless transmission method has the characteristics that to power for low power sensor.
Content of the invention
Present invention solves the technical problem that there is provided a kind of structure low-loss simple and reasonable in design not equiangular transformation
Electromagnetic energy collects antenna, and the less size having for the more other antenna of this antenna, relatively low clawback are lost, well
Impedance matching and higher gain.
The present invention is to solve above-mentioned technical problem to adopt the following technical scheme that, equiangular transformation electromagnetic energy is not collected for low-loss
Antenna it is characterised in that including consistent size and dielectric passivation bonded to each other, medium substrate and earth plate from top to bottom, its
In fit with dielectric passivation side medium substrate on be pasted with metal antenna paster, director and reflector, medium substrate
Middle part be provided with the cylindrical metal conductor extending vertically through medium substrate, earth plate be provided with cylindrical metal conductor bottom surface with
The circular hole of the heart；The material of described dielectric passivation is Rogers RO6002, permittivity εr=2.94, thickness d=0.51mm,
Length and width is 30mm；The radius of the circular coverage rate of described metal antenna paster is 0.0967 λ, wherein λ=122mm, λ
For the wavelength of 2.45GHz radio frequency, thickness is 0.02mm, and material is copper, and the material of described medium substrate is Rogers RO6010, is situated between
Electric constant εr=10.2, thickness d=2.54mm, length and width is 30mm, the central point of metal antenna paster and medium substrate
The center position of upper surface is consistent；The design shape of described metal antenna paster and size meet following requirement, set up plane straight
Angular coordinate system, by initial point (0mm, -2.5mm) as starting point, (13.75mm, -2.5mm) makes one for another end points along x-axis positive direction
The line segment 1 of a length of 13.75mm of bar；With point (13.75mm, -2.5mm) for the point of rotation, line segment 1 is rotated in the counterclockwise direction
112.5 °, with curvilinear equationIntersection point be H (15.185mm, -5.965mm), with straight line y=-x be
Symmetry axis is made minute surface and is symmetrically obtained point L (5.965mm, -15.185mm), then the direction being 67.5 ° along line segment 1 and x-axis angle, is sitting
Parameter the 4th extends to original 2 times in interval, is extended line segment two, makees minute surface with straight line y=-x for symmetry axis and symmetrically obtains
Extend line segment three, extend line segment two and the intersection point of prolongation line segment three is
Difference tie point H (15.185mm, -5.965mm),And L
(5.965mm, -15.185mm),Obtain line segment HW line segment LW, then
Secondary by initial point (0mm, 0mm) as starting point,
Antenna patch shape design is carried out according to below equation：
Y=0 (0≤x≤2.5) (1)
To be joined end to end successively by the whole curves obtained by formula, obtain initial graphics one, be symmetrical with straight line y=-x
Axle, initial graphics one is carried out minute surface symmetrically, obtains initial graphics two, line segment HW, line segment LW, initial graphics one and initial graph two
Merge and obtain rotating graphs one, by rotating graphs one with pointFor rotation
Turning point, turn clockwise 45 ° and overall be reduced into original 0.8 times, obtain rotating graphs two, by rotating graphs one with pointFor the point of rotation, turn clockwise 90 °, obtain rotating graphs three, by rotation figure
Shape one is with pointFor the point of rotation, turn clockwise 135 ° and overall be reduced into original
0.8 times, obtain rotating graphs four, by rotating graphs one with pointFor the point of rotation,
Turn clockwise 180 °, obtain rotating graphs five, by rotating graphs one with pointFor
The point of rotation, turn clockwise 225 ° and overall be reduced into original 0.8 times, obtain rotating graphs six, by rotating graphs one with pointFor the point of rotation, turn clockwise 270 °, obtain rotating graphs seven,
By rotating graphs one with pointFor the point of rotation, turn clockwise 315 °
And entirety is reduced into original 0.8 times, obtain rotating graphs eight, rotating graphs one, rotating graphs two, rotating graphs three, rotation
Figure four, rotating graphs five, rotating graphs six, rotating graphs seven and rotating graphs octadentate simultaneously, obtain closed figure, by Closed Graph
The circular radius of shape are reduced into design shape and the size that original 0.3844 times obtains required metal antenna paster, according to design
Shape and size cutting obtain metal antenna paster；Described director is rectangular metal bar one, the length of this rectangular metal bar one
It is respectively 10mm and 0.47mm with width, its long side is parallel with the side up and down of medium substrate, the left and right of minor face and medium substrate
Side is parallel, and central point is respectively 28.6mm and 1.4mm, central point and medium base with the vertical range of the upper and lower side of medium substrate
About plate, the vertical range of side is respectively 15mm and 15mm, and described reflector is rectangular metal bar two, this rectangular metal bar two
Length and width be respectively 18mm and 0.46mm, its long side is parallel with the side up and down of medium substrate, minor face and medium substrate
Left and right side parallel, the vertical range of central point and the upper and lower side of medium substrate is respectively 1.1mm and 28.9mm, central point with
About medium substrate, the vertical range of side is respectively 15mm and 15mm；One end of described cylindrical metal conductor and metal antenna
Paster connects, and the material of cylindrical metal conductor is copper, its bottom surface radius r=0.5mm, thickness d=2.54mm, cylindrical metal
The junction center of circle of conductor and metal antenna paster and the vertical range of four sides of medium substrate respectively 16.57mm,
16.57mm, 13.43mm and 13.43mm, the aperture R=1.9mm of circular hole, institute on the earth plate relative with cylindrical metal conductor
The output interface stating the cylindrical metal conductor other end is connected with energy management circuit, and this energy management circuit is used for absorbing
Energy stored.
The output interface of the described cylindrical metal conductor other end is connected with energy management circuit, and this energy management circuit is used
In the energy absorbing is stored.
The technique effect of the present invention is：Equiangular transformation electromagnetic energy collection antenna does not have lower echo damage for low-loss
Consumption, good impedance matching and standing-wave ratio and higher gain are such that it is able to RF energy in efficient reception environment.
Brief description
Fig. 1 is the structural representation of metal antenna paster；
Fig. 2 is that equiangular transformation electromagnetic energy does not collect antenna structure view for low-loss；
Fig. 3 is the low-loss not equiangular transformation electromagnetic energy collection antenna using the simulation of HFSS antenna modeling simulation software
Return loss plot；
Fig. 4 is the low-loss not equiangular transformation electromagnetic energy collection antenna increasing using the simulation of HFSS antenna modeling simulation software
Benefit figure.
In figure：1st, dielectric passivation, 2, medium substrate, 3, earth plate, 4, metal antenna paster, 5, director, 6, reflection
Device, 7, cylindrical metal conductor, 8, circular hole.
Specific embodiment
Below in conjunction with the accompanying drawing in the present invention, the technical scheme in specific implementation process of the present invention is carried out clear, complete
Whole, specific description.
The core of this invention is that equiangular transformation electromagnetic energy does not collect Antenna Design, in microstrip antenna designs for low-loss
When need to low-loss not equiangular transformation electromagnetic energy collect antenna metal antenna paster size, the size of medium substrate,
Thickness carries out theoretic estimation, more quickly could accurately find the low damage of suitable CF when simulated experiment
Equiangular transformation electromagnetic energy does not collect antenna to consumption.So below, explaining each data of microstrip antenna taking rectangular microstrip antenna as a example
The theoretical calculation method of parameter.
Patch size L × W, patch width W is：
In (1) formula, c is the light velocity, f0For forbidden band centre frequency, εrFor relative dielectric constant.
The relative efficiency permittivity ε of microstrip antenna medium substratereFor：
H represents thickness of dielectric layers, and in order to reduce the impact to antenna performance for the surface wave, the thickness of dielectric substrate should
Meet theoretical calculation formula：
Wherein fuHighest frequency for the work of microstrip antenna.
The equivalent radiated power gap length △ L of microstrip antenna is：
Then length L of microstrip antenna paster is：
Size L of earth plateg×WgMeet following theoretical formula
Lg≥L+6h (6)
Wg≥W+6h (7)
Rectangular microstrip antenna be that coaxial line is fed, after determining the length and width of rectangular patch, typically
The normal impedance of 50 Ω is added in microstrip antenna.
As shown in Figure 1-2, equiangular transformation electromagnetic energy does not collect antenna, including consistent size from top to bottom and phase for low-loss
Mutually the dielectric passivation 1 of laminating, medium substrate 2 and earth plate 3, are wherein fitted with dielectric passivation 1 on the medium substrate 2 of side
It is pasted with metal antenna paster 4, director 5 and reflector 6, the middle part of medium substrate 2 is provided with the circle extending vertically through medium substrate 2
Cylindricality metallic conductor 7, earth plate 3 is provided with the circular hole 8 concentric with cylindrical metal conductor 7 bottom surface；Described dielectric passivation 1
Material is Rogers RO6002, permittivity εr=2.94, thickness d=0.51mm, length and width is 30mm；Described gold
The radius belonging to the circular coverage rate of antenna patch 4 is 0.0967 λ, and wherein λ=122mm, λ are the wavelength of 2.45GHz radio frequency, thickness
For 0.02mm, material is copper, and the material of described medium substrate 2 is Rogers RO6010, permittivity εr=10.2, thickness d=
2.54mm, length and width is 30mm, the center position of the central point of metal antenna paster 4 and medium substrate 2 upper surface
Unanimously；The design shape of described metal antenna paster 4 and size meet following requirement, set up plane right-angle coordinate, by initial point
(0mm, -2.5mm), as starting point, (13.75mm, -2.5mm) makes an a length of 13.75mm for another end points along x-axis positive direction
Line segment 1；With point (13.75mm, -2.5mm) for the point of rotation, line segment 1 is rotated 112.5 ° in the counterclockwise direction, with curvilinear equationIntersection point be H (15.185mm, -5.965mm), minute surface is made for symmetry axis with straight line y=-x
Symmetrically obtain point L (5.965mm, -15.185mm), then the direction being 67.5 ° along line segment 1 and x-axis angle, in reference axis the 4th area
Interior extend to original 2 times, be extended line segment two, minute surface made for symmetry axis with straight line y=-x and is symmetrically extended line segment
Three, extend line segment two and the intersection point of prolongation line segment three isConnect respectively
Contact H (15.185mm, -5.965mm),With L (5.965mm ,-
15.185mm)、Obtain line segment HW line segment LW, again by initial point
(0mm, 0mm) as starting point,
Antenna patch shape design is carried out according to below equation：
Y=0 (0≤x≤2.5) (1)
To be joined end to end successively by the whole curves obtained by formula, obtain initial graphics one, be symmetrical with straight line y=-x
Axle, initial graphics one is carried out minute surface symmetrically, obtains initial graphics two, line segment HW, line segment LW, initial graphics one and initial graph two
Merge and obtain rotating graphs one, by rotating graphs one with pointFor rotation
Turning point, turn clockwise 45 ° and overall be reduced into original 0.8 times, obtain rotating graphs two, by rotating graphs one with pointFor the point of rotation, turn clockwise 90 °, obtain rotating graphs three, by rotation figure
Shape one is with pointFor the point of rotation, turn clockwise 135 ° and overall be reduced into original
0.8 times, obtain rotating graphs four, by rotating graphs one with pointFor the point of rotation,
Turn clockwise 180 °, obtain rotating graphs five, by rotating graphs one with point
For the point of rotation, turn clockwise 225 ° and overall be reduced into original 0.8 times, obtain rotating graphs six, by rotating graphs one with
PointFor the point of rotation, turn clockwise 270 °, obtain rotating graphs
Seven, by rotating graphs one with pointFor the point of rotation, turn clockwise
315 ° and overall be reduced into original 0.8 times, obtain rotating graphs eight, rotating graphs one, rotating graphs two, rotating graphs three,
Rotating graphs four, rotating graphs five, rotating graphs six, rotating graphs seven and rotating graphs octadentate simultaneously, obtain closed figure, will seal
The circular radius closing figure are reduced into design shape and the size that original 0.3844 times obtains required metal antenna paster 4, press
Obtain metal antenna paster 4 according to design shape and size cutting；Described director 5 is rectangular metal bar one, this rectangular metal bar
One length and width is respectively 10mm and 0.47mm, and its long side is parallel with the side up and down of medium substrate 2, minor face and medium base
The left and right side of plate 2 is parallel, and central point is respectively 28.6mm and 1.4mm, center with the vertical range of medium substrate side about 2
Point is respectively 15mm and 15mm with the vertical range of medium substrate 2 about side, and described reflector 6 is rectangular metal bar two, should
The length and width of rectangular metal bar two is respectively 18mm and 0.46mm, and its long side is parallel with the side up and down of medium substrate 2, short
Side is parallel with the left and right side of medium substrate 2, the vertical range of central point and medium substrate side about 2 be respectively 1.1mm and
28.9mm, central point is respectively 15mm and 15mm with the vertical range of medium substrate 2 about side；Described cylindrical metal conductor
7 one end is connected with metal antenna paster 4, and the material of cylindrical metal conductor 7 is copper, its bottom surface radius r=0.5mm, thickness d
=2.54mm, cylindrical metal conductor 7 is vertical with 2 four sides in the junction center of circle and medium substrate of metal antenna paster 4
Distance respectively 16.57mm, 16.57mm, 13.43mm and 13.43mm, circle on the earth plate 3 relative with cylindrical metal conductor 7
The aperture R=1.9mm in hole 8, the output interface of described cylindrical metal conductor 7 other end is connected with energy management circuit, this energy
Buret reason circuit is used for being stored the energy absorbing.
Fig. 3 is the low-loss not equiangular transformation electromagnetic energy collection antenna using the simulation of HFSS antenna modeling simulation software
Return loss plot, as seen from the figure, this low-loss return loss that equiangular transformation electromagnetic energy does not collect antenna is -36.8dB, than
The return loss of other same volume antennas is also little, and performance is very good.
Fig. 4 is the low-loss not equiangular transformation electromagnetic energy collection antenna increasing using the simulation of HFSS antenna modeling simulation software
Benefit figure, as seen from the figure, equiangular transformation electromagnetic energy collection antenna is 3.56dB in the maximum gain of 2.45GHz for this low-loss,
Directionality is very stable.
Embodiment above describes general principle, principal character and the advantage of the present invention, the technical staff of the industry should
Understand, the present invention is not restricted to the described embodiments, the simply explanation present invention's described in above-described embodiment and specification is former
Reason, under the scope without departing from the principle of the invention, the present invention also has various changes and modifications, and these changes and improvements each fall within
In the scope of protection of the invention.
Claims (1)
1. equiangular transformation electromagnetic energy does not collect antenna it is characterised in that including consistent size and mutual patch from top to bottom for low-loss
Dielectric passivation, medium substrate and the earth plate closing, the medium substrate of side of wherein fitting with dielectric passivation is pasted with gold
Belong to antenna patch, director and reflector, the middle part of medium substrate is provided with the cylindrical metal conductor extending vertically through medium substrate,
Earth plate is provided with the circular hole concentric with cylindrical metal conductor bottom surface；The material of described dielectric passivation is Rogers
RO6002, permittivity εr=2.94, thickness d=0.51mm, length and width is 30mm；The circle of described metal antenna paster
The radius of shape coverage rate is 0.0967 λ, and wherein λ=122mm, λ are the wavelength of 2.45GHz radio frequency, and thickness is 0.02mm, and material is
Copper, the material of described medium substrate is Rogers RO6010, permittivity εr=10.2, thickness d=2.54mm, length and width
Degree is 30mm, and the central point of metal antenna paster is consistent with the center position of medium substrate upper surface；Described metal antenna
The design shape of paster and size meet following requirement, set up plane right-angle coordinate, and initial point (0mm, -2.5mm) conduct is risen
Point, (13.75mm, -2.5mm) is that another end points makes the line segment 1 of an a length of 13.75mm along x-axis positive direction；With point
(13.75mm, -2.5mm) is the point of rotation, line segment 1 is rotated 112.5 ° in the counterclockwise direction, with curvilinear equationIntersection point be H (15.185mm, -5.965mm), minute surface is made for symmetry axis with straight line y=-x
Symmetrically obtain point L (5.965mm, -15.185mm), then the direction being 67.5 ° along line segment 1 and x-axis angle, in reference axis the 4th area
Interior extend to original 2 times, be extended line segment two, minute surface made for symmetry axis with straight line y=-x and is symmetrically extended line segment
Three, extend line segment two and the intersection point of prolongation line segment three isConnect respectively
Contact H (15.185mm, -5.965mm),With L (5.965mm ,-
15.185mm)、Obtain line segment HW line segment LW, again by initial point
(0mm, 0mm) as starting point,
Antenna patch shape design is carried out according to below equation：
Y=0 (0≤x≤2.5) (1)
To be joined end to end successively by the whole curves obtained by formula, obtain initial graphics one, with straight line y=-x as symmetry axis,
Initial graphics one are carried out minute surface symmetrically, obtains initial graphics two, line segment HW, line segment LW, initial graphics one and initial graph two are closed
And obtain rotating graphs one, by rotating graphs one with pointFor rotation
Point, turn clockwise 45 ° and overall be reduced into original 0.8 times, obtain rotating graphs two, by rotating graphs one with pointFor the point of rotation, turn clockwise 90 °, obtain rotating graphs three, will rotate
Figure one is with pointFor the point of rotation, turn clockwise 135 ° and overall be reduced into former
0.8 times coming, obtains rotating graphs four, by rotating graphs one with pointFor rotation
Point, turns clockwise 180 °, obtains rotating graphs five, by rotating graphs one with point
For the point of rotation, turn clockwise 225 ° and overall be reduced into original 0.8 times, obtain rotating graphs six, by rotating graphs one with
PointFor the point of rotation, turn clockwise 270 °, obtain rotating graphs
Seven, by rotating graphs one with pointFor the point of rotation, turn clockwise
315 ° and overall be reduced into original 0.8 times, obtain rotating graphs eight, rotating graphs one, rotating graphs two, rotating graphs three,
Rotating graphs four, rotating graphs five, rotating graphs six, rotating graphs seven and rotating graphs octadentate simultaneously, obtain closed figure, will seal
The circular radius closing figure are reduced into design shape and the size that original 0.3844 times obtains required metal antenna paster, according to
Design shape and size cutting obtain metal antenna paster；Described director is rectangular metal bar one, this rectangular metal bar one
Length and width is respectively 10mm and 0.47mm, and its long side is parallel with the side up and down of medium substrate, minor face and medium substrate
Left and right side is parallel, and central point is respectively 28.6mm and 1.4mm, central point and Jie with the vertical range of the upper and lower side of medium substrate
About matter substrate, the vertical range of side is respectively 15mm and 15mm, and described reflector is rectangular metal bar two, this rectangular metal
The length and width of bar two is respectively 18mm and 0.46mm, and its long side is parallel with the side up and down of medium substrate, minor face and medium
The left and right side of substrate is parallel, and central point is respectively 1.1mm and 28.9mm, center with the vertical range of the upper and lower side of medium substrate
Vertical range respectively 15mm and 15mm of side about point and medium substrate；One end of described cylindrical metal conductor and metal
Antenna patch connects, and the material of cylindrical metal conductor is copper, its bottom surface radius r=0.5mm, and thickness d=2.54mm is cylindrical
The junction center of circle of metallic conductor and metal antenna paster and the vertical range of four sides of medium substrate respectively 16.57mm,
16.57mm, 13.43mm and 13.43mm, the aperture R=1.9mm of circular hole, institute on the earth plate relative with cylindrical metal conductor
The output interface stating the cylindrical metal conductor other end is connected with energy management circuit, and this energy management circuit is used for absorbing
Energy stored.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610813899.8A CN106410383A (en) | 2016-09-11 | 2016-09-11 | Low-loss unequal-angle-transformation electromagnetic energy collection antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610813899.8A CN106410383A (en) | 2016-09-11 | 2016-09-11 | Low-loss unequal-angle-transformation electromagnetic energy collection antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106410383A true CN106410383A (en) | 2017-02-15 |
Family
ID=57999142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610813899.8A Withdrawn CN106410383A (en) | 2016-09-11 | 2016-09-11 | Low-loss unequal-angle-transformation electromagnetic energy collection antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106410383A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5574470A (en) * | 1994-09-30 | 1996-11-12 | Palomar Technologies Corporation | Radio frequency identification transponder apparatus and method |
| CN105932409A (en) * | 2016-05-05 | 2016-09-07 | 哈尔滨工程大学 | Miniaturized inverted-E-shaped groove type ultra wide band millimeter wave microstrip antenna |
-
2016
- 2016-09-11 CN CN201610813899.8A patent/CN106410383A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5574470A (en) * | 1994-09-30 | 1996-11-12 | Palomar Technologies Corporation | Radio frequency identification transponder apparatus and method |
| CN105932409A (en) * | 2016-05-05 | 2016-09-07 | 哈尔滨工程大学 | Miniaturized inverted-E-shaped groove type ultra wide band millimeter wave microstrip antenna |
Non-Patent Citations (2)
| Title |
|---|
| WENKUAN CHEN ETC.: "A new design of tri-frequency microstrip antenna with arc slots", 《2012 INTERNATIONAL CONFERENCE ON MICROWAVE AND MILLIMETER WAVE TECHNOLOGY (ICMMT)》 * |
| 郭蓉 等: "一种新型宽带定向性贴片天线设计", 《物理学报》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106410383A (en) | Low-loss unequal-angle-transformation electromagnetic energy collection antenna | |
| CN106410392A (en) | Electromagnetic wave energy collecting antenna | |
| CN106410388A (en) | WiFi energy collecting antenna | |
| CN106374202A (en) | High-frequency energy storage apparatus | |
| CN106229665A (en) | High frequency power absorption-type microstrip antenna | |
| CN106410389A (en) | Electromagnetic energy collecting antenna capable of restraining loss | |
| CN106229664A (en) | Orthotype microstrip antenna | |
| CN106356614A (en) | WiFi energy collection system | |
| CN106299656A (en) | 2.48GHz high-frequency signal collection device | |
| CN106252869A (en) | Electromagnetic wave energy collection system | |
| CN106486751A (en) | Anistree energy-absorbing paster antenna | |
| CN106450718A (en) | Wifi energy absorption antenna | |
| CN106374200A (en) | High-gain decagonal high-frequency power absorption type microstrip antenna | |
| CN106374203A (en) | Enneagon microstrip antenna with directional radio frequency energy absorption function | |
| CN106229662A (en) | Radio frequency efficient absorption antenna | |
| CN106410391A (en) | Nine-corner electromagnetic wave energy receiving type antenna | |
| CN106299659A (en) | Low-loss nine jiaos does not wait electromagnetic energy to collect antenna | |
| CN106299652A (en) | Low loss RF collection of energy microstrip antenna | |
| CN106252867A (en) | Radio frequency efficient absorption antenna | |
| CN108123218A (en) | Self-contained electric system with low reflectance factor | |
| CN107994349A (en) | Based on geometric wave-absorber system | |
| CN107994351A (en) | Improve incidence angle stability wave-absorber | |
| CN106229663A (en) | Nine jiaos are not waited conversion radio frequency efficient absorption antenna | |
| CN106450692A (en) | Low-back lobe high-frequency energy absorption antenna | |
| CN108039575A (en) | Decay incident electromagnetic wave converting system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170215 |
|
| WW01 | Invention patent application withdrawn after publication |