CN110098473A - A kind of tightly coupled super surface array of rectification - Google Patents
A kind of tightly coupled super surface array of rectification Download PDFInfo
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- CN110098473A CN110098473A CN201910345966.1A CN201910345966A CN110098473A CN 110098473 A CN110098473 A CN 110098473A CN 201910345966 A CN201910345966 A CN 201910345966A CN 110098473 A CN110098473 A CN 110098473A
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- super surface
- radiating element
- surface array
- minor matters
- metal patch
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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
-
- 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
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- 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
-
- 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
- H01Q21/065—Patch antenna array
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
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Abstract
The invention discloses a kind of tightly coupled super surface array of rectification, the M including periodic arrangement × N number of radiating element, wherein M, N are positive integer, and M, N are more than or equal to 2；Each radiating element successively includes metal patch from top to bottom, medium substrate, and metal floor, each metal patch is made of four identical rectifier diodes and mountain type groove structure, the mountain type groove structure is made of recessed groove and rectangle minor matters, and it is located at the side of metal patch center edge portion, one end of the rectangle minor matters links into an integrated entity with metal patch, after the other end and rectifier diode serial connection, rectangle minor matters corresponding thereto are connected again, super surface array and rectifier diode are integrated into same plane, to realize the cascade of radiating element, to improve DC output power；The present invention can be used for realizing the wireless energy supply of power electronic equipment.
Description
Technical field
The invention belongs to Electronics Science and Technology fields, and in particular to a kind of tightly coupled super surface array of rectification can be used
In the wireless energy supply for realizing power electronic equipment.
Background technique
With the development of electronic information technology and artificial intelligence, ten hundreds of communication equipments and power electronics are simple
Energy is provided by battery, environmental pollution is not only resulted in, is also unable to satisfy the requirement continued working.Thus need new power supply
Mode, wireless power transfer and electromagnetic energy are collected as a kind of energy resource supply mode, it can be achieved that wireless charging, because it has entirely
When, the advantages that omnidirectional and remote operating distance, positive regard is just obtained in recent years.
Electromagnetic energy, which is collected, can be realized by super surface plus rectification circuit.Electromagnetism Meta Materials refer to natural material
The artificial composite structure or composite construction of not available extraordinary physical property, and the electromagnetism that super surface is a kind of two-dimensional structure surpasses
The advantages that material, small in size, low section simple with structure, energy per unit area collection efficiency is high, multi-angle, multipolarization.
And rectification circuit is a kind of circuit structure for AC signal being converted to based on the one-way conduction of rectifier diode direct current signal,
Its structure type is relatively abundanter, is one integral in communication system and electromagnetic energy collection system, especially in electromagnetic energy
Amount is collected in application, and the selection of circuit structure form and rectifier diode can all directly affect energy conversion efficiency.
Entitled " Meta Materials rectification surface " (application number 201610829806.0, publication No. of the Sichuan University in its application
106410395A) in patent document, a kind of Meta Materials rectification surface is proposed, including medium substrate, microstrip structure unit and whole
Flow unit；Microstrip structure unit is arranged in substrate front side, and rectification unit is arranged in substrate back；Microstrip structure unit receives electromagnetism
Wave energy is simultaneously transferred to corresponding rectification unit, and microstrip structure unit is made of microstrip gap and/or microband paste, which can
The incident electromagnetic wave energy in efficient reception front.But shortcoming existing for the device is: 1) due to each radiating element
Rectification circuit and super surface are independent designs, and overall structure is not simple 2) since rectification circuit is mutually indepedent enough, not over
Structure cascade promotes the receiving voltage of diode, causes the structure that can not adapt to high power environment.
Shanghai University its application entitled " a kind of dual polarization direction recall rectenna array " (application number:
201711274062.1, publication number: 108281774A) a kind of dual polarization rectenna array, the knot are proposed in patent document
Structure includes top dielectric layer, middle layer metal floor and underlying dielectric layers, radiation patch is equipped on top dielectric layer, in middle level
Metal floor is equipped with coupling gap, and microstrip feed line is equipped on underlying dielectric layers.Radiation patch, coupling gap and microstrip feed line
It forms dual polarization direction and recalls aerial array.Meanwhile rectification circuit is provided on underlying dielectric layers, microstrip feed line and rectified current
The input terminal microstrip line on road is connected, of same size.Though the structure can receive not like-polarized electromagnetic wave energy, but still exist
Shortcoming be: since the rectification circuit in the structure is mutually indepedent, not over structure cascade realize power superposition, can not
It promotes the receiving power of diode and bears voltage, so the structure output underpower.
In conclusion electromagnetic energy collects the main problem that faces and is at present, due to intercoupling there are radiating element and
The problem of electromagnetic interference, cause the output power of electromagnetic energy collection system generally lower, also cannot achieve integrally-built tight
Gathering property.
Summary of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, a kind of super surface battle array of tightly coupled rectification is proposed
Column can be used for realizing the wireless energy supply of power electronic equipment to improve output dc power and structural compactness.
Technical thought of the invention is: receiving electromagnetic energy by tightly coupled super surface array, which passes through
Rectifier diode is rectified, and AC signal is converted to direct current signal, realizes that dc power is folded by the cascade mode of structure
Output power is improved, specific implementation is as follows:
A kind of super surface array of close coupling rectification, the M including periodic arrangement × N number of radiating element, wherein M, N are positive
Integer, M, N are more than or equal to 2；Each radiating element successively includes metal patch 1, medium substrate 2 and metal floor from top to bottom
3, each metal patch 1 is made of four identical rectifier diodes 11 and mountain type groove structure 12, which is characterized in that the mountain type
Slot structure 12 is made of recessed groove 121 and rectangle minor matters 122, and is located at the side of 1 center edge portion of metal patch, the mountain type groove knot
Structure 12 is symmetrical about the Z axis at radiating element center；One end of the rectangle minor matters 122 links into an integrated entity with metal patch 1,
Rectangle minor matters 122 after the other end and rectifier diode 11 are connected in series, then corresponding thereto are connected, super surface array with
Rectifier diode is integrated into same plane, so that the cascade of radiating element is realized, to improve output dc power.
The close coupling rectifies super surface array, it is characterised in that: the side length of the metal patch 1 be expressed as 0.1 λ~
0.33 λ, wherein λ is wavelength.
The close coupling rectifies super surface array, it is characterised in that: the side length of the recessed groove 121 is expressed as 0.02 λ
~0.067 λ, the length of the rectangle minor matters 122 are expressed as the λ of 0.04 λ~0.1, and width means are the λ of 0.007 λ~0.02, wherein λ
For wavelength.
The close coupling rectifies super surface array, it is characterised in that: the rectangle minor matters 122 are about radiating element center
Z axis it is symmetrical.
The close coupling rectifies super surface array, it is characterised in that: the thickness of the medium substrate 2 is expressed as 0.017 λ
~0.1 λ, wherein λ is wavelength.
The close coupling rectifies super surface array, it is characterised in that: the rectifier diode 11 is located at rectangle minor matters 122
End, the connection type of rectifier diode 11 connected using series aiding connection.
Compared with the prior art, the invention has the following advantages:
First, the present invention and is symmetrically distributed in each metal patch surrounding due to using mountain type groove structure, and with adjacent gold
Belong to patch connection, realize the structure cascade of radiating element, overcome the technical issues of cannot achieve power superposition in the prior art,
Improve output dc power.
Second, the present invention is due to using mountain type groove structure, which is made of recessed groove and rectangle minor matters, with metal patch
Integral structure is formed, rectifier diode is connected directly between one end of rectangle minor matters, super surface array and rectifier diode are integrated
To same plane, to overcome the technical issues of structure is complicated in the prior art, it ensure that radiative unit structure is compact.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the structural schematic diagram of metal patch of the present invention；
Fig. 3 is the energy acceptance efficiency simulation result diagram of the tightly coupled super surface array of rectification of the present invention；
Fig. 4 is the output dc power simulation result diagram of the tightly coupled super surface array of rectification of the present invention
Specific embodiment
The present invention is described in further detail below in conjunction with attached drawing.
Embodiment 1
Referring to Figures 1 and 2
A kind of super surface array of close coupling rectification, the M including periodic arrangement × N number of radiating element, wherein M, N are positive
Integer, M, N are more than or equal to 2；Each radiating element successively includes metal patch 1, medium substrate 2 and metal floor from top to bottom
3, each metal patch 1 is made of four identical rectifier diodes 11 and mountain type groove structure 12, which is characterized in that the mountain type
Slot structure 12 is made of recessed groove 121 and rectangle minor matters 122, and is located at the side of 1 center edge portion of metal patch, the mountain type groove knot
Structure 12 is symmetrical about the Z axis at radiating element center；One end of the rectangle minor matters 122 links into an integrated entity with metal patch 1,
Rectangle minor matters 122 after the other end and rectifier diode 11 are connected in series, then corresponding thereto are connected, super surface array with
Rectifier diode is integrated into same plane, so that the cascade of radiating element is realized, to improve output dc power.
Mountain type groove structure 12 of the present invention is made of recessed groove 121 and rectangle minor matters 122, when electromagnetic wave irradiation to array surface
When, since inductive effect generates surface current, and 121 symmetrical configuration of recessed groove, each recessed groove 121 generates recessed groove 121
Surface current it is identical, recessed groove 121 and rectangle minor matters 122 can be equivalent to RLC filter circuit due to close coupling effect at this time, when
When recessed groove 121 and rectangle 122 change in size of minor matters, equivalent RLC filter circuit is also different, so that the super surface of rectification has not
Same characteristic, therefore impedance operator, working frequency and the efficiency of energy collection for rectifying super surface can be adjusted, while reducing spoke
Penetrate the polarization sensitive of unit.
Radiating element of the invention carries out structure interconnection, the i.e. output end of previous stage radiating element using cascade mode
The input port of mouth and later stage radiating element is connected in series, and the output power of previous stage radiating element is passed to below
Mary radiation unit, the power after transmitting is superimposed and is converted into dc power with the received power of radiating element itself, to mention
The high DC output power of integral radiation unit.
The close coupling rectifies super surface array, it is characterised in that: the side length of the metal patch 1 be expressed as 0.1 λ~
0.33 λ, wherein λ is wavelength.The side length of metal patch 1 is preferably 0.28 λ in the present invention, and corresponding physical size is 13mm.
The close coupling rectifies super surface array, it is characterised in that: the side length of the recessed groove 121 is expressed as 0.02 λ
~0.067 λ, the length of the rectangle minor matters 122 are expressed as the λ of 0.04 λ~0.1, and width means are the λ of 0.007 λ~0.02, wherein λ
For wavelength.The side length of recessed groove 121 is preferably 0.056 λ in the present invention, and corresponding physical size is 3mm；The rectangle minor matters
122 length is preferably 0.067 λ, and corresponding physical size is 3.5mm, and width is preferably 0.019 λ, and corresponding physical size is
1mm。
The close coupling rectifies super surface array, it is characterised in that: the rectangle minor matters 122 are about radiating element center
Z axis it is symmetrical.
The close coupling rectifies super surface array, it is characterised in that: the thickness of the medium substrate 2 is expressed as 0.017 λ
~0.1 λ, wherein λ is wavelength.The thickness of medium substrate 2 is preferably 0.028 λ in the present invention, and corresponding physical size is 1.5mm.
The close coupling rectifies super surface array, it is characterised in that: the rectifier diode 11 is located at rectangle minor matters 122
End, the connection type of rectifier diode 11 connected using series aiding connection.
Embodiment 2
The side length of the metal patch 1 is expressed as the λ of 0.1 λ~0.33, and wherein λ is wavelength.It is corresponding when side length is 0.1 λ
Physical size be 5.4mm.
The side length of the recessed groove 121 is expressed as the λ of 0.02 λ~0.067, and the length of the rectangle minor matters 122 is expressed as
The λ of 0.04 λ~0.1, width means are the λ of 0.007 λ~0.02, and wherein λ is wavelength.It is corresponding when 121 side length of recessed groove is 0.02 λ
Physical size be 1.1mm, when 122 length of rectangle minor matters be 0.04 λ when, corresponding physical size is 2.2mm, when rectangle minor matters
When 122 width are 0.007 λ, corresponding physical size is 0.36mm.
The thickness of the medium substrate 2 is expressed as the λ of 0.017 λ~0.1, and wherein λ is wavelength.It is right when with a thickness of 0.017 λ
The physical size answered is 0.9mm.
Embodiment 3
The side length of the metal patch 1 is expressed as the λ of 0.1 λ~0.33, and wherein λ is wavelength.It is corresponding when side length is 0.33 λ
Physical size be 18mm.
The side length of the recessed groove 121 is expressed as the λ of 0.02 λ~0.067, and the length of the rectangle minor matters 122 is expressed as
The λ of 0.04 λ~0.1, width means are the λ of 0.007 λ~0.02, and wherein λ is wavelength.It is right when 121 side length of recessed groove is 0.067 λ
The physical size answered is 3.6mm, and when 122 length of rectangle minor matters is 0.1 λ, corresponding physical size is 5.4mm, when rectangle branch
Save 122 width be 0.02 λ when, corresponding physical size is 1.1mm.
The thickness of the medium substrate 2 is expressed as the λ of 0.017 λ~0.1, and wherein λ is wavelength.It is corresponding when with a thickness of 0.1 λ
Physical size be 5.4mm.
The present invention is described in further detail below in conjunction with simulation result.
Referring to Fig. 3
In electromagnetic simulation software HFSS, the close coupling rectifies super surface array and works in 5.55GHz, radiating element
Periodicity arrangement, when emulation, are analyzed using energy acceptance efficiency of principal and subordinate's boundary condition to array.
Abscissa is expressed as frequency in Fig. 3, and ordinate is expressed as energy acceptance efficiency.
From figure 3, it can be seen that electromagnetic energy receiving efficiency reaches maximum value in working frequency 5.55GHz, it is
96.78%, and be more than 80% in 5.2GHz~5.8GHz range internal efficiency.
Referring to Fig. 4
In circuit simulating software ADS, the close coupling rectifies super surface array and works in 5.55GHz, radiating element
Periodicity arrangement, and mutually cascading, when emulation the input power of each radiating element it is identical, be 1mW, to each of array
The DC output power of capable or each column is analyzed.
Abscissa indicates the cascade quantity of radiating element in Fig. 4, and ordinate indicates DC output power.
Figure 4, it is seen that in the identical situation of the input power of each radiating element, it is every after radiating element cascade
One column or the DC output power of every a line are apparently higher than the DC output power in the case of only one radiating element, cascade
Quantity is more, and DC output power is higher.When four radiating elements cascade, the DC output power of every a line or each column
For 2.68mW.
Above description is only example of the present invention, does not constitute any limitation of the invention, it is clear that for
It, all may be without departing substantially from the principle of the invention, structure after having understood the content of present invention and principle for one of skill in the art
In the case where, various modifications and change in form and details are carried out, but these are still existed based on modifications and variations of the invention
Within claims of the invention.
Claims (6)
1. a kind of close coupling rectifies super surface array, the M including periodic arrangement × N number of radiating element, wherein M, N are positive whole
Number, M, N are more than or equal to 2；Each radiating element from top to bottom successively includes metal patch (1), medium substrate (2) and metal
Plate (3), each metal patch (1) are made of four identical rectifier diodes (11) and mountain type groove structure (12), and feature exists
In the mountain type groove structure (12) is made of recessed groove (121) and rectangle minor matters (122), and is located at side in the middle part of metal patch (1)
The side of edge, the mountain type groove structure (12) are symmetrical about the Z axis at radiating element center；The one of the rectangle minor matters (122)
End links into an integrated entity with metal patch (1), after the other end and rectifier diode (11) serial connection, then rectangle corresponding thereto
Minor matters (122) are connected, and super surface array and rectifier diode are integrated into same plane, to realize the grade of radiating element
Connection, to improve output dc power.
2. close coupling according to claim 1 rectifies super surface array, it is characterised in that: the side of the metal patch (1)
Length is expressed as the λ of 0.1 λ~0.33, and wherein λ is wavelength.
3. close coupling according to claim 1 rectifies super surface array, it is characterised in that: the side of the recessed groove (121)
Length is expressed as the λ of 0.02 λ~0.067, and the length of the rectangle minor matters (122) is expressed as the λ of 0.04 λ~0.1, and width means are
The λ of 0.007 λ~0.02, wherein λ is wavelength.
4. close coupling according to claim 1 rectifies super surface array, it is characterised in that: the rectangle minor matters (122) are closed
Z axis in radiating element center is symmetrical.
5. close coupling according to claim 1 rectifies super surface array, it is characterised in that: the thickness of the medium substrate (2)
Degree is expressed as the λ of 0.017 λ~0.1, and wherein λ is wavelength.
6. close coupling according to claim 1 rectifies super surface array, it is characterised in that: rectifier diode (11) position
In the end of rectangle minor matters (122), the connection type of rectifier diode (11) is connected using series aiding connection.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115313053A (en) * | 2022-07-26 | 2022-11-08 | 四川大学 | Curved surface conformal rectification super-surface array structure |
| CN115693167A (en) * | 2022-11-08 | 2023-02-03 | 华工未来科技(江苏)有限公司 | Digital coding super surface based on resonant opening |
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Application publication date: 20190806 |