CN110412361A - A kind of quasi-plane wave generator and production method based on passive space phase regulator - Google Patents
A kind of quasi-plane wave generator and production method based on passive space phase regulator Download PDFInfo
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- CN110412361A CN110412361A CN201910681883.XA CN201910681883A CN110412361A CN 110412361 A CN110412361 A CN 110412361A CN 201910681883 A CN201910681883 A CN 201910681883A CN 110412361 A CN110412361 A CN 110412361A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/10—Radiation diagrams of antennas
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Abstract
A kind of quasi-plane wave generator and production method based on passive space phase regulator, it arranges to be formed including multiple passive space phase regulators, the passive space phase regulator includes four layers of dielectric layer and five layers of metal layer, metal layer and dielectric layer interval be arranged and metal layer on the outside, there are two metal throuth holes for setting among passive space phase regulator, it is connected between metal throuth hole by strip line, a piece metal throuth hole runs through preceding four layers of metal layer and three first layers dielectric layer, another metal throuth hole runs through rear four layers of metal layer and dielectric layer.The present invention can closely generate plane wave, realize the near-field test of various equipment, have the advantages that cost is relatively low, it is high to generate plane wave dead zone quality.
Description
Technical field
The present invention relates to Electromagnetic Field and Microwave Technology field, in particular to a kind of standard based on passive space phase regulator
Plane wave generator and production method.
Background technique
The test of many equipment needs to meet far field condition, and far field condition generally requires biggish measuring distance, so that
Test condition becomes harsh, it is difficult to reach.Such as the performance test of antenna needs the measuring distance between dual-mode antenna to meetWherein R is the distance between dual-mode antenna, and D is the full-size of antenna to be measured, and λ is operation wavelength.To observation
When the full-size of line remains unchanged, with the raising of working frequency, operation wavelength shortens, test needed for meeting far field condition
Distance becomes larger so that indoor test environment is often unable to satisfy the requirement of measuring distance, and outdoor test environment will receive weather,
The limitation of the natural conditions such as temperature.So need to invent a kind of device realizes the test environment for meeting far field condition near field,
The spherical wave for giving off driving source i.e. near field is converted into plane wave.Current existing method mostly uses greatly antenna array, anti-
Face and lens etc. are penetrated, but these methods are difficult to take into account the indexs such as design difficulty, processing cost and dead zone quality.
Summary of the invention
In order to solve the above technical problems, the purpose of the present invention is to provide a kind of based on passive space phase regulator
Quasi-plane wave generator and production method can closely generate plane wave, realize the near-field test of various Devices to test, tool
Have the advantages that cost is relatively low, it is high to generate plane wave dead zone quality.
To achieve the goals above, the technical solution adopted by the present invention is that:
A kind of quasi-plane wave generator based on passive space phase regulator, mainly by multiple passive space phase adjusteds
Device 10 arrangement formed, the passive space phase regulator 10 include four layers of dielectric layer 101 and five layers of metal layer, metal layer with
Dielectric layer 101 is spaced setting and metal layer on the outside, and being located at setting among passive space phase regulator 10, there are two metals to lead to
Hole 105 is connected between metal throuth hole 105 by strip line 104, and a metal throuth hole is situated between through preceding four layers of metal layer and three first layers
Matter layer, another metal throuth hole run through rear four layers of metal layer and dielectric layer.
Passive space phase regulator 10 transmission phase according to needed for quasi-plane wave generator different location into
Row arrangement.
The metal layer respectively includes circular metal patch 102, square metal patch 103 and strip line 104, is located at and is situated between
101 front and rear of matter layer is respectively arranged with circular metal patch 102, between first layer and second layer dielectric layer 101, the
Be provided with square metal patch 103 between three layers and the 4th layer of dielectric layer 101, be located at the second layer and third layer dielectric layer 101 it
Between be provided with strip line 104, two metal throuth holes 105 extend through certain media layer and metal layer.
The strip line 104 is located at the most middle layer of passive space phase regulator 10, there is certain width, strip line
Both ends are fixed and are remained unchanged by two metal throuth holes respectively end to end, strip line rectangular shaped, and three in rectangle are outer
Right angle has done corner cut processing.
104 length of strip line is adjustable structure.
The circular metal patch 102 is respectively to receive coupling layer and cross radiance layer, is respectively used to coupling incoming electromagnetic
Wave and radiation cross polarization are emitted electromagnetic wave.
The square metal patch 103 is electro-magnetic screen layer, for shielding incident electromagnetic wave and outgoing electromagnetic wave to band-like
The influence of transfer delay layer where line.
The strip line 104 is transfer delay layer, for the length adjustment transmitted electromagnetic wave phase by adjusting strip line 104
Position.
A kind of production method of the quasi-plane wave generator based on passive space phase regulator, includes the following steps；
Step 1:
Two-dimensional surface is digitized first, i.e., entire plane is separated into block of pixels one by one, a block of pixels represents
One passive space phase regulator 10, digitized purpose are to obtain the discretization XY coordinate of each unit, as H1 is represented
Coordinate is (0,0), and the coordinate that H2 is represented is (0, -2), and the phase condition that different XY coordinates need to meet obeys following formula:
Wherein, λ is incidence wave wavelength, and xy is discretization unit coordinate, and f is the Meta Materials focal length of lens, and p is unit side length；For center metamaterial unit transmission phase, which can select from all known passive space phase regulators
It takes, according to above-mentioned formula, the phase of passive space phase regulator at different location can be calculated, choose institute further according to phase
The length of strip line 104 in the passive space phase regulator needed.
Step 2: there is the passive null of different 104 length of strip line according to the arrangement of step 1 digitized phase Two dimensional Distribution
Between phase regulator 10, the design of quasi-plane wave generator 20 can be realized.
Beneficial effects of the present invention:
Strip line theory is utilized in the quasi-plane wave generator based on passive space phase regulator that the present invention uses, and leads to
The length of strip line is overregulated to control the spatial transmission phase of passive space phase regulator, adjusts spherical wave in free space
Phase at middle different location realizes the spherical wave plane wave conversion near field, shortens the distance that spherical wave is converted into plane wave, In
The test condition in far field is realized near field, to realize the near-field test of various equipment；The quasi-plane wave generator is a nothing
Source device, structure is simple, and section is lower, and manufacturing process is mature, cost is relatively low, and produced plane wave dead zone quality is higher, and its
Design method has universality, can be applied to different operating frequency band.
Detailed description of the invention
Fig. 1 is passive space phase regulator structural schematic diagram.
Fig. 2 is digitized phase Two dimensional Distribution schematic diagram.
Fig. 3 is quasi-plane wave generator structure chart.
Fig. 4 is the quasi-plane wave generator schematic diagram based on passive space phase regulator.
Fig. 5 is the dead zone somewhere face XOY electric field magnitude patterns.
Fig. 6 is Electromagnetic Wave Propagation schematic diagram.
Specific embodiment
Below with reference to embodiment, invention is further described in detail.
As shown in FIG. 1, FIG. 1 is the passive space phase regulator structure 10 for constituting quasi-plane wave generator, the passive nulls
Between 10 structure of phase regulator include as shown in the figure: four layers of dielectric layer 101, two layers of circular metal patch 102, two layers of square metal
Patch 103, one layer of strip line 104 and two metal throuth holes 105.
Concrete function is as follows: 1, receiving coupling layer, which is made of circular metal patch 102 and medium substrate, can incite somebody to action
The electromagnetic wave of incident particular polarization is coupled into the wave guide mode transmitted in transfer delay layer in free space, and logical by metal
It transmits downwards in hole 105；2, metal screen layer: the layer is metal layer, and effect is the wave guide mode for guaranteeing to transmit in transfer delay layer
Do not influenced by coupling layer and cross radiance layer metal patch is received, the metal throuth hole 105 opened thereon ensure that energy smoothly from
Reception coupling layer is transmitted to transfer delay layer and is transmitted to cross radiance layer again；3, transfer delay layer: the layer is by metal band-shaped line 104
And upper layer and lower layer medium substrate composition, the length of strip line 104 determine the distance of electromagnetic transmission, i.e., transmission phase is big
It is small, by increasing the length of strip line 104, the transmission phase of the passive space phase regulator can be increased.Transfer delay layer
It is also the design core of the passive space phase regulator；4, cross radiance layer: the layer is by circular metal patch 102 and medium base
Board group at, the wave guide mode transmitted in transfer delay layer is converted to the electromagnetic wave in free space via metal throuth hole 105, due to
The excitation point of this layer is orthogonal with the excitation point of coupling layer is received, so outgoing polarization of electromagnetic wave and the polarization of incident electromagnetic wave are just
It hands over, realizes cross polarization radiations.Passive space phase regulator has broadband, low section, is suitable for each frequency range, is saturating
Penetrate the advantages that phase can cover 360 °.
Quasi-plane wave generator adjusts phase at the spherical wave different location of space using passive space phase regulator
Spherical wave is converted into plane wave in short measuring distance to realize by section；It is passive on quasi-plane wave generator two-dimensional surface
The transmission phase of space phase adjuster is distributed, it will directly affects the dead zone quality for generating plane wave；
So in the present embodiment, first digitizing two-dimensional surface, i.e., entire plane is separated into pixel one by one
Block is as shown in Fig. 2, a block of pixels represents a passive space phase regulator.Digitized purpose obtains each unit
Discretization XY coordinate, for the coordinate represented such as H1 as (0,0), the coordinate that H2 is represented is (0, -2), what different XY coordinates needed to meet
Phase condition obeys following formula:
Wherein, λ is incidence wave wavelength, and XY is discretization unit coordinate, and f is the Meta Materials focal length of lens, and p is unit side length；For center metamaterial unit transmission phase, which can select from all known passive space phase regulators
It takes.According to above-mentioned formula, the phase of passive space phase regulator at different location can be calculated, chooses institute further according to phase
The length of strip line 104 in the passive space phase regulator needed.
There is the passive space phase of different band-like line lengths according to digitized phase Two dimensional Distribution arrangement as shown in Figure 2
The design of quasi-plane wave generator as shown in Figure 3 can be realized in adjuster.
As shown in figure 4, Fig. 4 is the quasi-plane wave generator application based on passive space phase regulator that the present invention is implemented
In near-field test schematic diagram, test includes: that spherical wave can be converted to the standard based on passive space phase regulator of plane wave
Plane wave generator 20 and the driving source 30 in quasi-plane wave generator focus, antenna 40 to be measured.Driving source is a loudspeaker
Antenna can generate uniform spherical wave in the focus of quasi-plane wave generator, through the passive space on quasi-plane wave generator
Switch to quasi-plane wave after the phase adjusted of phase regulator.
As shown in figure 5, Fig. 5 generates plane wave plumb cut distribution map of the electric field by the present embodiment, from electric field shown in Fig. 5 point
Cloth can qualitatively illustrate that the spherical wave that the plane wave generator can give off driving source is effectively converted into plane wave outgoing；
Plane wave dead zone amplitude ripple caused by the present embodiment is ± 0.5dB, and dead zone phase ripple is ± 5 °, can be used for antenna performance
Near-field test.
As shown in fig. 6, Fig. 6 is Electromagnetic Wave Propagation schematic diagram, left figure is incident spherical wave, and quasi-plane wave generator part is anti-
The wave penetrated is superimposed the fluctuation for leading to spherical wave with protocorm surface wave；Right figure is outgoing quasi-plane wave；The quasi-plane wave generator also has
There is the function of polarization conversion, left figure incidence is Y polarization spherical wave, and right figure outgoing is X polarization plane wave, and is entirely being worked
There is same effect in frequency band, this result demonstrates the correctness of quasi-plane wave Generator Design.
Claims (9)
1. a kind of quasi-plane wave generator based on passive space phase regulator, which is characterized in that mainly by multiple passive nulls
Between phase regulator (10) arrangement formed, the passive space phase regulator (10) include four layers of dielectric layer (101) and five
Layer metal layer, metal layer and dielectric layer (101) are spaced setting and metal layer on the outside, are located at passive space phase regulator (10)
There are two centre settings metal throuth hole (105), is connected between metal throuth hole (105) by strip line (104), a metal throuth hole
Through preceding four layers of metal layer and three first layers dielectric layer, another metal throuth hole runs through rear four layers of metal layer and dielectric layer.
2. a kind of quasi-plane wave generator based on passive space phase regulator according to claim 1, feature exist
In passive space phase regulator (10) transmission phase according to needed for quasi-plane wave generator different location is arranged
Cloth.
3. a kind of quasi-plane wave generator based on passive space phase regulator according to claim 1, feature exist
In the metal layer respectively includes circular metal patch (102), square metal patch (103) and strip line (104), is located at
Dielectric layer (101) front and rear is respectively arranged with circular metal patch (102), is located at first layer and second layer dielectric layer
(101) between, square metal patch (103) are provided between third layer and the 4th layer of dielectric layer (101), are located at the second layer and the
It is provided with strip line (104) between three layers of dielectric layer (101), two metal throuth holes (105) extend through certain media layer and gold
Belong to layer.
4. a kind of quasi-plane wave generator based on passive space phase regulator according to claim 3, feature exist
Be respectively to receive coupling layer and cross radiance layer in, the circular metal patch (102), be respectively used to coupling incident electromagnetic wave and
It radiates cross polarization and is emitted electromagnetic wave.
5. a kind of quasi-plane wave generator based on passive space phase regulator according to claim 3, feature exist
In the square metal patch (103) is electro-magnetic screen layer, for shielding incident electromagnetic wave and outgoing electromagnetic wave to strip line institute
In the influence of transfer delay layer.
6. a kind of quasi-plane wave generator based on passive space phase regulator according to claim 3, feature exist
In the strip line (104) is transfer delay layer, for the length adjustment transmitted electromagnetic wave phase by adjusting strip line (104)
Position.
7. a kind of quasi-plane wave generator based on passive space phase regulator according to claim 1, feature exist
In the strip line (104) is located at the most middle layer of passive space phase regulator (10), there is certain width, strip line
Both ends are fixed and are remained unchanged by two metal throuth holes respectively end to end, strip line rectangular shaped, and three in rectangle are outer
Right angle has done corner cut processing.
8. a kind of quasi-plane wave generator based on passive space phase regulator according to claim 1, feature exist
In the strip line (104) length is adjustable structure.
9. being included the following steps based on a kind of production method of quasi-plane wave generator based on passive space phase regulator；
Step 1:
Two-dimensional surface is digitized first, i.e., entire plane is separated into block of pixels one by one, a block of pixels represents one
Passive space phase regulator (10), digitized purpose are to obtain the discretization XY coordinate of each unit, the seat represented such as H1
It is designated as (0,0), the coordinate that H2 is represented is (0, -2), and the phase condition that different XY coordinates need to meet obeys following formula:
Wherein, λ is incidence wave wavelength, and xy is discretization unit coordinate, and f is the Meta Materials focal length of lens, and p is unit side length；For
Center metamaterial unit transmission phase, the central homology phase can be chosen from all known passive space phase regulators,
According to above-mentioned formula, the phase of passive space phase regulator at different location can be calculated, needed for choosing further according to phase
Passive space phase regulator in strip line (104) length；
Step 2: there is the passive space of different strip lines (104) length according to the arrangement of step 1 digitized phase Two dimensional Distribution
Phase regulator (10), can be realized the design of quasi-plane wave generator 20.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113411814A (en) * | 2021-05-11 | 2021-09-17 | 西安交通大学 | Novel short-focus amplitude modulation and phase modulation compact field based on transmission super surface and testing method |
| CN113834851A (en) * | 2021-09-18 | 2021-12-24 | 中国科学院工程热物理研究所 | Near-field thermal radiation measuring device and method based on transient plane heat source |
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| CN107565218A (en) * | 2017-08-23 | 2018-01-09 | 重庆邮电大学 | UHF radar frequency spectrum shift method based on FSS reflection multilayer modulation panels |
| CN109390701A (en) * | 2018-11-28 | 2019-02-26 | 中国矿业大学 | A kind of X-band high-gain broadband lens antenna based on the super surface texture of phase gradient multilayer |
| CN109687140A (en) * | 2018-12-28 | 2019-04-26 | 浙江大学 | The active super skin antenna cover of two-dimensional scanning varactor |
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2019
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20050093734A1 (en) * | 2002-09-20 | 2005-05-05 | Alford James L. | Simultaneous dual polarization radar system |
| CN1937307A (en) * | 2006-10-17 | 2007-03-28 | 东南大学 | High performance frequency selective surface based on integrated waveguide multi-cavity cascade |
| CN107565218A (en) * | 2017-08-23 | 2018-01-09 | 重庆邮电大学 | UHF radar frequency spectrum shift method based on FSS reflection multilayer modulation panels |
| CN109390701A (en) * | 2018-11-28 | 2019-02-26 | 中国矿业大学 | A kind of X-band high-gain broadband lens antenna based on the super surface texture of phase gradient multilayer |
| CN109687140A (en) * | 2018-12-28 | 2019-04-26 | 浙江大学 | The active super skin antenna cover of two-dimensional scanning varactor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113411814A (en) * | 2021-05-11 | 2021-09-17 | 西安交通大学 | Novel short-focus amplitude modulation and phase modulation compact field based on transmission super surface and testing method |
| CN113411814B (en) * | 2021-05-11 | 2022-08-05 | 西安交通大学 | Novel short-focus amplitude modulation and phase modulation compact range device based on transmission super surface and testing method |
| CN113834851A (en) * | 2021-09-18 | 2021-12-24 | 中国科学院工程热物理研究所 | Near-field thermal radiation measuring device and method based on transient plane heat source |
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