CN109494445A - One kind being suitable for the received spiral manual electromagnetic structure of broadband circle polarized wireless energy - Google Patents
One kind being suitable for the received spiral manual electromagnetic structure of broadband circle polarized wireless energy Download PDFInfo
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- CN109494445A CN109494445A CN201811630490.8A CN201811630490A CN109494445A CN 109494445 A CN109494445 A CN 109494445A CN 201811630490 A CN201811630490 A CN 201811630490A CN 109494445 A CN109494445 A CN 109494445A
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- 239000000758 substrate Substances 0.000 claims abstract description 48
- 239000012212 insulator Substances 0.000 claims abstract description 30
- 230000007423 decrease Effects 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims description 2
- 230000010287 polarization Effects 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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
- H01Q1/12—Supports; Mounting means
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/24—Polarising devices; Polarisation filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
Abstract
The invention discloses one kind to be suitable for the received spiral manual electromagnetic structure of broadband circle polarized wireless energy, the resonant element for waiting the column such as rows to arrange along orthogonal direction including several；Resonant element includes substrate, insulator and helix；Wherein, insulator is fixed in the substrate through-hole of substrate；Insulator has plug wire hole, and plug wire hole is through-hole；Helix is disposed on the substrate, and one end fixation is inserted in plug wire hole；Helix has several circle spirals, is divided into lower spire and upper spire；The radius of each circle spiral of lower spire is equal, screw pitch linear gradient；The radius of each circle spiral of upper spire successively decreases by bottom to top-direction equivalent, screw pitch linear gradient；It is seamless between the substrate of each resonant element to connect.The present invention has many advantages, such as efficient, wideband.
Description
Technical field
The invention belongs to electromagnetic technology field, it is related to a kind of electromagnetic structure, more particularly to a kind of suitable for broadband circle polarized
The received spiral manual electromagnetic structure of wireless energy.
Background technique
Manual electromagnetic structure is defined as made uniform electromagnetic structure, has the unexistent uncommon character of nature, is
By the electromagnetic material structure that the basic unit of the sub-wavelength artificial structure of specific geometry is aperiodic or periodic arrangement is constituted.
It is with peculiar property not available for material original in nature, wherein there are many completely new physical phenomenons.It closes at present
In the physical characteristic research of manual electromagnetic structure, and its in directed radiation high performance antenna, electromagnetism stealth, space communication, detection
The application study in the fields such as technology and novel terahertz wave band function element starts to become grinding for international physics and electromagnetism educational circles
Study carefully hot spot.
Human social development enters the wireless epoch, and people's acquisition information is more and more convenient and timely, obtains anywhere or anytime
Take the demand of energy information increasingly strong, to sensors and other electronic equipments such as national defense safety, urban architecture, medical treatment detections
When power supply, wireless energy transfer (WPT) becomes a kind of selection well.Wireless energy transfer refers to that energy is transferred to from energy source
One process of electric loading, this process get rid of traditional wire transmission, are transmitted by free space.Wireless power transfer is extensive
It charges applied to mobile phone, robot power supply, RFID system function, microsystems technology, microwave-driven helicopter, spacecraft etc.
Field.
During WPT, polarization of electromagnetic wave is an important factor for must be taken into consideration.Polarization of electromagnetic wave is the one of electromagnetic wave
Kind critical nature, the mode of description are analysis electric field intensity oscillation behaviors.When electromagnetic wave is propagated along the direction of wave vector, with
The variation of time, the electric field intensity end track Suo Hang can be divided into straight line, oval, circle, the polarization mode that they are respectively corresponded
For linear polarization, elliptic polarization and circular polarisation.Wherein, the antenna of circularly polarised wave is radiated in mobile communication, radar system, satellite
The communications field also has a wide range of applications.Although the circular polarisation resonance device efficiency for being traditionally used for wireless power transfer is higher, work
Make that frequency range is narrow, this brings many inconvenient factors in practical applications.
Summary of the invention
The present invention provides one kind and is suitable for the received spiral manual electromagnetic structure of broadband circle polarized wireless energy, existing to overcome
There is the defect of technology.
To achieve the above object, the present invention provides a kind of manually electric suitable for the received spiral of broadband circle polarized wireless energy
Magnetic structure, the resonant element arranged including column such as several equal rows along orthogonal direction；Resonant element includes substrate, insulator and spiral shell
Spin line；Wherein, insulator is fixed in the substrate through-hole of substrate；Insulator has plug wire hole, and plug wire hole is through-hole；Helix
It is disposed on the substrate, one end fixation is inserted in plug wire hole；Helix has several circle spirals, is divided into lower spire and upper spiral
Portion；The radius of each circle spiral of lower spire is equal, screw pitch linear gradient；The radius of each circle spiral of upper spire by bottom extremely
Top-direction equivalent successively decreases, screw pitch linear gradient；It is seamless between the substrate of each resonant element to connect.
Wherein, lower spire is the part of the close substrate of helix, and upper spire is the portion of the separate substrate of helix
Point.
" arranging along orthogonal direction " refers to that every row resonant element is mutually perpendicular to each column resonant element.
Further, the present invention provide it is a kind of be suitable for the received spiral manual electromagnetic structure of broadband circle polarized wireless energy,
It can also have the following features: wherein, the edge of substrate is arranged in insulator, the midpoint positioned at side where it.
Further, the present invention provide it is a kind of be suitable for the received spiral manual electromagnetic structure of broadband circle polarized wireless energy,
It can also have the following features: wherein, institute's helix has 6 circle spirals altogether, and lower spire and upper spire are respectively provided with 3 circles
Spiral.
Further, the present invention provide it is a kind of be suitable for the received spiral manual electromagnetic structure of broadband circle polarized wireless energy,
It can also have the following features: wherein, 3 circle spirals of lower spire are followed successively by the first spiral, second by its bottom end to top
Spiral and third spiral；The linear gradient equation of the screw pitch of lower spire are as follows: z (t)=7.5 × (t^2)+105 × t, t are lower spiral shell
The position parameter that certain is put in rotation portion, range is that 0~1, z (t) is distance of this to lower spire top；When t=1/3, z (1/
It 3) is third spiral starting point to the distance on lower spire top, the as screw pitch of the second spiral terminal to third spiral terminal；T=
When 2/3, z (2/3) be the second spiral starting point to lower spire top distance, z (2/3)-z (1/3) be the second spiral starting point extremely
The screw pitch of third spiral starting point；When t=1, z (1) is distance of the first spiral starting point to lower spire top, z (1)-z (2/3)
For the first spiral starting point to the screw pitch of the second spiral starting point.
Further, the present invention provide it is a kind of be suitable for the received spiral manual electromagnetic structure of broadband circle polarized wireless energy,
It can also have the following features: wherein, 3 circle spirals of upper spire are followed successively by the 4th spiral, the 5th by its bottom end to top
Spiral and the 6th spiral；The linear gradient equation of the screw pitch of upper spire are as follows: z ' (t ')=45 × (t ' ^2)+30 × t ', t ' be
The position parameter that certain is put on upper spire, range are 0~1, and z ' (t ') is the distance on the supreme spire top of the point；T '=1/3
When, z ' (1/3) is the distance on the supreme spire top of the 6th spiral starting point, the i.e. spiral shell of the 5th spiral terminal to the 6th spiral terminal
Away from；When t '=2/3, z ' (2/3) is the distance on the supreme spire top of the 5th spiral starting point, and z ' (2/3)-z ' (1/3) is the 5th
Spiral starting point to the 6th spiral starting point screw pitch；When t '=1, z ' (1) is the distance on the supreme spire top of the 4th spiral starting point,
Z ' (1)-z ' (2/3) is the screw pitch of the 4th spiral starting point to the 5th spiral starting point.
Further, the present invention provide it is a kind of be suitable for the received spiral manual electromagnetic structure of broadband circle polarized wireless energy,
It can also have the following features: wherein, substrate is square.
Further, the present invention provide it is a kind of be suitable for the received spiral manual electromagnetic structure of broadband circle polarized wireless energy,
It can also have the following features: wherein, insulator is cylindrical；Plug wire hole is arranged at the center of insulator；Insulator two
The end face at end and the respective surfaces of substrate are concordant.
Further, the present invention provide it is a kind of be suitable for the received spiral manual electromagnetic structure of broadband circle polarized wireless energy,
It can also have the following features: wherein, the radius of spin of upper spire is passed by the radius of spin of lower spire by circle number equivalent
Reducing to top radius is zero.
Further, the present invention provide it is a kind of be suitable for the received spiral manual electromagnetic structure of broadband circle polarized wireless energy,
It can also have the following features: wherein, helix extends perpendicularly to substrate.
Further, the present invention provide it is a kind of be suitable for the received spiral manual electromagnetic structure of broadband circle polarized wireless energy,
It can also have the following features: wherein, the material of substrate and helix is copper；And/or the material of insulator is polytetrafluoroethyl-ne
Alkene.
The beneficial effects of the present invention are: the present invention provides a kind of suitable for the received spiral of broadband circle polarized wireless energy
Manual electromagnetic structure, using the manual electromagnetic structure of novel form, can be realized compared with traditional circular polarisation energy receiver
The high-efficiency broadband of left-hand circular polarization wave is received, structure is simple and easy to process, by adjusting each parameter size of resonant element,
The realization that can be convenient is for resonance frequency, the adjusting of working frequency points.Multiply 31mm secondly, each resonant element only takes up 31mm and multiply
187.5mm, occupancy volume is relatively small, fine with the requirement compatible degree in Modern wireless communication for device miniaturization.In addition,
Within the scope of working frequency range, i.e., 2GHz to 4GHz frequency range, energy acquisition efficiency are higher than 90%, compensate for conventional circular polarization energy and connect
The narrow disadvantage of resonator works frequency range is received, and at center frequency point 3GHz, energy acquisition efficiency, which is realized, is higher than 99%, hence it is evident that is higher than
Traditional circular polarisation energy acceptance resonator.The present invention has many advantages, such as efficient, wideband.
Detailed description of the invention
Fig. 1 is the schematic diagram of spiral manual electromagnetic structure；
Fig. 2 is the perspective view of resonant element；
Fig. 3 is the top view of resonant element；
Fig. 4 is the bottom view of resonant element；
Fig. 5 is the left-hand circular polarization energy transmission efficiency figure of spiral manual electromagnetic structure；
Fig. 6 is the s11 datagram of spiral manual electromagnetic structure.
Specific embodiment
Illustrate a specific embodiment of the invention below in conjunction with attached drawing.
As shown in Figure 1, the present invention, which provides one kind, is suitable for the received spiral artificial electromagnetic knot of broadband circle polarized wireless energy
Structure, including 20 rows × the 20 column resonant element 1 regularly arranged along orthogonal direction.Wherein, it " arranges " and refers to along orthogonal direction, often
Row resonant element is mutually perpendicular to each column resonant element.
In the present embodiment, the quantity of resonant element, which can according to need, to be equipped with, and need to meet is in that the column such as equal rows are periodically orthogonal
Arrangement.
As in Figure 2-4, resonant element 1 includes substrate 11, insulator 12 and helix 13.
Substrate 11 is square.
The material of substrate 11 is copper.The ratio between the side length of substrate 11 and thickness are 31:3, it is preferred that the size of substrate 11 is
31mm×31mm×3mm。
Insulator 12 is cylindrical, fixed in the substrate through-hole of substrate 11.The side of substrate 11 is arranged in insulator 12
Edge, the midpoint positioned at side where it.The end face at 12 both ends of insulator is concordant with the respective surfaces of substrate 11.
The center of insulator 12 has plug wire hole, and plug wire hole is through-hole.
The material of insulator 12 is polytetrafluoroethylene (PTFE).The ratio between the outer radius of insulator 12 and inside radius are 2:0.6, preferably
, outer radial dimension 2mm, inside radius is having a size of 0.6mm.
Helix 13 is arranged on the substrate 11, and one end fixation is inserted in plug wire hole.Helix 13 extends perpendicularly to
Substrate 11.
Helix 13 has 6 circle spirals altogether, is divided into the lower spire close to substrate portion and the upper spiral shell far from substrate portion
Rotation portion.
Lower spire includes 3 circle spirals, is followed successively by the first spiral 131, the second spiral 132 and third by its bottom end to top
Spiral 133.The screw pitch linear gradient of lower spire, linear gradient equation are as follows: z (t)=7.5 × (t^2)+105 × t, t are lower spiral shell
The position parameter of certain point in rotation portion, range is that 0~1, z (t) is distance of this to lower spire top.
When t=1/3, z (1/3) is distance of 133 starting point of third spiral to lower spire top, wherein third spiral 133
Starting point be the second spiral 132 terminal, the top of lower spire is the terminal of third spiral 133, and therefore, z (1/3) is i.e.
For the screw pitch of 132 terminal of the second spiral to 133 terminal of third spiral.
When t=2/3, z (2/3) is distance of 132 starting point of the second spiral to lower spire top, and z (2/3)-z (1/3) is
Second spiral, 132 starting point to 133 starting point of third spiral distance, wherein 132 starting point of the second spiral be the first spiral 131 eventually
Point, 133 starting point of third spiral are 132 terminal of the second spiral, therefore, (2/3)-z (1/3) be 131 terminal of the first spiral extremely
The screw pitch of second spiral, 132 terminal.
When t=1, z (1) is distance of 131 starting point of the first spiral to lower spire top, and z (1)-z (2/3) is the first spiral shell
Revolve the distance of 131 starting points to 132 starting point of the second spiral, wherein 131 starting point of the first spiral is 11 surface of substrate, the second spiral
132 starting points are 131 terminal of the first spiral, and therefore, z (1)-z (2/3) is 11 surface of substrate to 131 terminal of the first spiral
Screw pitch.
Preferably, the screw pitch of 133 to the second spiral 132 of third spiral is 35.83mm, 132 to the first spiral of the second spiral
131 screw pitch is 37.5mm, and the screw pitch of the first spiral 131 to substrate 11 is 39.17mm, and total height of lower spire is
112.5mm。
The radius of each circle spiral of lower spire is equal.Preferably, the radius of each circle spiral of lower spire is 13mm.
Upper spire includes 3 circle spirals, is followed successively by the 4th spiral 134, the 5th spiral 135 and the 6th by its bottom end to top
Spiral 136.The screw pitch linear gradient of upper spire, linear gradient equation are as follows: z ' (t ')=45 × (t ' ^2)+30 × t ', t ' be
The position parameter of certain point on upper spire, range are 0~1, and z ' (t ') is the distance on the supreme spire top of the point.
When t '=1/3, z ' (1/3) is the distance on the supreme spire top of 136 starting point of the 6th spiral, wherein upper spire
Top is 136 terminal of the 6th spiral, and 136 starting point of the 6th spiral is 135 terminal of the 5th spiral, and therefore, z ' (1/3) is
Six spirals, 136 terminal to 135 terminal of the 5th spiral screw pitch.
When t '=2/3, z ' (2/3) is the distance on the supreme spire top of 135 starting point of the 5th spiral, z ' (2/3)-z ' (1/
It 3) is the distance of 135 starting point of the 5th spiral to 136 starting point of the 6th spiral, wherein 135 starting point of the 5th spiral is the 4th spiral
134 terminals, 136 starting point of the 6th spiral are 135 terminal of the 5th spiral, and therefore, z ' (2/3)-z ' (1/3) is the 4th spiral
134 terminals to 135 terminal of the 5th spiral screw pitch.
When t '=1, z ' (1) is the distance on the supreme spire top of 134 starting point of the 4th spiral, and z ' (1)-z ' (2/3) is the
Four spirals, 134 starting point to 135 starting point of the 5th spiral distance, wherein 134 starting point of the 4th spiral is the top of lower spire,
5th spiral, 135 starting point is 134 terminal of the 4th spiral, therefore, the as lower spire top z ' (1)-z ' (2/3) to the 4th spiral shell
Revolve the screw pitch of 134 terminals, the i.e. screw pitch of 133 terminal of third spiral to 134 terminal of the 4th spiral.
Preferably, the screw pitch of 136 to the 5th spiral 135 of the 6th spiral is 15mm, 135 to the 4th spiral 134 of the 5th spiral
Screw pitch be 25mm, the screw pitch of the 4th spiral 134 to third spiral 133 is 35mm.Total height of upper spire is 75mm.
The radius of each circle spiral of upper spire is successively decreased by bottom to top-direction equivalent, by the radius of spin of lower spire
Being decremented to the top radius of upper spire by circle number equivalent is zero.
The material of helix 13 is copper, and the radius of copper wire is 0.6mm.
Seamless between the substrate 11 of each resonant element 1 to connect, when production, 20 × 20 substrates 11 are integrally formed, and are constituted whole
Body electromagnetic structure.
The port of electromagnetic structure is the end that each helix 13 is inserted into insulator 12.It the rear end of insulator 12 can be by coaxial
Line connects rectification circuit, in the present embodiment, port rectification circuit is equivalent to ohmic load, which represents output port
The input impedance of rectification circuit.As shown in figure 4, ohmic load 2 is welded on the bottom end end face of insulator 12, end and helix
13 connections transmit receiving end for analog energy, in order to which preferably with transmission lines matching, resistance value is selected as 50 ohm.
When left-hand circular polarization electromagnetic wave vertical incidence is to entire spiral manual electromagnetic structure, resonance, helix table are generated
Face generates right-hand polarization electric current, and energy will be lost on the ohmic load at each port, and the percentage of loss is equivalent
For the collecting efficiency to energy, i.e. energy collecting efficiency can be indicated by consuming the energy in load.As shown in figure 5,
In working frequency range 2 to 4GHz, energy acquisition efficiency is higher than 90%, and in central task frequency point 3GHz, collected energy is high
Crossing the 99%, energy loss in copper substrate, teflon insulators and copper helix can almost ignore.
Fig. 6 is the s11 data of its return loss characteristic of the representative of this spiral manual electromagnetic structure.As seen from the figure, it is working
In frequency range 2 to 4GHz, return loss characteristic is low, and receiving efficiency is high.
Claims (10)
1. one kind is suitable for the received spiral manual electromagnetic structure of broadband circle polarized wireless energy, it is characterised in that:
The resonant element arranged including column such as several equal rows along orthogonal direction；
The resonant element includes substrate, insulator and helix；
Wherein, the insulator is fixed in the substrate through-hole of the substrate；
The insulator has plug wire hole, and plug wire hole is through-hole；
The helix is disposed on the substrate, and one end fixation is inserted in the plug wire hole；
The helix has several circle spirals, is divided into lower spire and upper spire；
The radius of each circle spiral of the lower spire is equal, screw pitch linear gradient；
The radius of each circle spiral of the upper spire successively decreases by bottom to top-direction equivalent, screw pitch linear gradient；
It is seamless between the substrate of each resonant element to connect.
Wherein, lower spire is the part of the close substrate of helix, and upper spire is the part of the separate substrate of helix.
2. according to claim 1 be suitable for the received spiral manual electromagnetic structure of broadband circle polarized wireless energy, spy
Sign is:
Wherein, the edge of the substrate is arranged in the insulator, the midpoint positioned at side where it.
3. according to claim 1 be suitable for the received spiral manual electromagnetic structure of broadband circle polarized wireless energy, spy
Sign is:
Wherein, institute's helix has 6 circle spirals altogether, and lower spire and upper spire are respectively provided with 3 circle spirals.
4. according to claim 2 be suitable for the received spiral manual electromagnetic structure of broadband circle polarized wireless energy, spy
Sign is:
Wherein, 3 circle spirals of the lower spire are followed successively by the first spiral, the second spiral and third spiral shell by its bottom end to top
Rotation；
The linear gradient equation of the screw pitch of the lower spire are as follows: z (t)=7.5 × (t^2)+105 × t, t are the lower spiral
The position parameter that certain is put in portion, range is that 0~1, z (t) is distance of this to the lower spire top；
When t=1/3, z (1/3) is distance of the third spiral starting point to lower spire top；
When t=2/3, z (2/3) is distance of the second spiral starting point to lower spire top, and z (2/3)-z (1/3) is the second spiral
Starting point to third spiral starting point screw pitch；
When t=1, z (1) be the first spiral starting point to lower spire top distance, z (1)-z (2/3) be the first spiral starting point extremely
The screw pitch of second spiral starting point.
5. according to claim 2 be suitable for the received spiral manual electromagnetic structure of broadband circle polarized wireless energy, spy
Sign is:
Wherein, 3 circle spirals of the upper spire are followed successively by the 4th spiral, the 5th spiral and the 6th spiral shell by its bottom end to top
Rotation；
The linear gradient equation of the screw pitch of the upper spire are as follows: z ' (t ')=45 × (t ' ^2)+30 × t ', t ' are the upper spiral shell
The position parameter that certain is put in rotation portion, range are 0~1, and z ' (t ') is distance of this to the upper spire top；
When t '=1/3, z ' (1/3) is the distance on the supreme spire top of the 6th spiral starting point；
When t '=2/3, z ' (2/3) is the distance on the supreme spire top of the 5th spiral starting point, and z ' (2/3)-z ' (1/3) is the 5th
Spiral starting point to the 6th spiral starting point screw pitch；
When t '=1, z ' (1) is the distance on the supreme spire top of the 4th spiral starting point, and z ' (1)-z ' (2/3) rises for the 4th spiral
O'clock to the 5th spiral starting point screw pitch.
6. according to claim 1 be suitable for the received spiral manual electromagnetic structure of broadband circle polarized wireless energy, spy
Sign is:
Wherein, the substrate is square.
7. according to claim 1 be suitable for the received spiral manual electromagnetic structure of broadband circle polarized wireless energy, spy
Sign is:
Wherein, the insulator is cylindrical；
The plug wire hole is arranged at the center of insulator；
The end face at the insulator both ends is concordant with the respective surfaces of the substrate.
8. according to claim 1 be suitable for the received spiral manual electromagnetic structure of broadband circle polarized wireless energy, spy
Sign is:
Wherein, the radius of spin of the upper spire is decremented to top half by circle number equivalent by the radius of spin of the lower spire
Diameter is zero.
9. according to claim 1 be suitable for the received spiral manual electromagnetic structure of broadband circle polarized wireless energy, spy
Sign is:
Wherein, the helix extends perpendicularly to the substrate.
10. according to claim 1 be suitable for the received spiral manual electromagnetic structure of broadband circle polarized wireless energy, spy
Sign is:
Wherein, the material of the substrate and helix is copper；
And/or the material of the insulator is polytetrafluoroethylene (PTFE).
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