CN208189750U - A kind of microwave lens filter - Google Patents
A kind of microwave lens filter Download PDFInfo
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- CN208189750U CN208189750U CN201820063307.XU CN201820063307U CN208189750U CN 208189750 U CN208189750 U CN 208189750U CN 201820063307 U CN201820063307 U CN 201820063307U CN 208189750 U CN208189750 U CN 208189750U
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Abstract
The utility model relates to a kind of microwave lens filters, are superimposed the convex lens structures form constituted in certain sequence by first medium A, second medium B, third medium C and the 4th medium D；The first medium A, second medium B, third medium C and the 4th medium D are absorbing meta-material；The 4th medium D is located at the middle position of filter, and the opposite sides face of the 4th medium D is successively superimposed with the first medium A, second medium B and third medium C from outside to inside；The first medium A, second medium B and third medium C positioned at the 4th medium D opposite sides face are symmetrically distributed, and the medial surface of the first medium A, second medium B and third medium C are cancave cambered surface structure, and lateral surface is convex globoidal structure.The design of the utility model structure is simple, reasonable, by the adjusting to microwave, completes the absorption of clutter, realizes the filtration of clutter, realizes 100% filter effect to selected microwave frequency.
Description
Technical field
The utility model belongs to technical field of micro communication, and in particular to a kind of microwave lens filter.
Background technique
Microwave filter is the instrument for carrying out wavelength selection, it can pick out required wave from numerous wavelength
It is long, and the microwave in addition to this wavelength, it will it is rejected and passes through.Current microwave filter divides low pass, high pass, band logical and with resistance
Four seed types (high pass commonly uses wide band bandpass filter replacement), their structure, parameter and design method is because of different works
The indexs such as working frequency, frequency bandwidth, power capacity and have marked difference.In microwave circuit system, the performance of filter is to electricity
The performance indicator on road has a great impact, therefore how to design a filter with high performance, to design microwave circuit
System tool has very important significance.
Microwave filter has extensive use in the various circuit systems such as communication, signal processing, radar.With mobile logical
The rapid development of letter, electronic countermeasure and airmanship, the improvement of demand and existing device performance to new microwave device mention
Going out higher requirement, device performance and integrated level are all improving using new material and new technology in developed country, meanwhile, to the greatest extent may be used
Cost is reduced to energy, device size is reduced and reduces power consumption.
Summary of the invention
That in response to the above problems, the present invention proposes a kind of designs of structure is simple, rationally, by the adjusting to microwave,
The absorption for completing clutter, realizes the filtration of clutter, realizes that the microwave of 100% filter effect is saturating to selected microwave frequency
Mirror filter.
The technical solution of the utility model is as follows:
Above-mentioned microwave lens filter, to press one by first medium A, second medium B, third medium C and the 4th medium D
Determine the convex lens structures form of laminated structure composition；The first medium A, second medium B, third medium C and the 4th medium D are equal
For absorbing meta-material；The 4th medium D is located at the middle position of filter, the opposite sides face of the 4th medium D by
It is outer and interior to be successively superimposed with the first medium A, second medium B and third medium C；Positioned at the 4th medium D opposite sides
The first medium A, the second medium B and third medium C in face are symmetrically distributed, the first medium A, second medium B and
The medial surface of three medium C is cancave cambered surface structure, and lateral surface is convex globoidal structure.
The microwave lens filter, in which: the refractive index of the first medium A is nA, thickness a=λ/4nA；Described
The refractive index of second medium B is nB, thickness b=λ/4nB；The refractive index of the third medium C is nC, thickness c=λ/4nC。
The microwave lens filter, in which: the thickness d of the 4th medium D=C/2 Δ f, wherein d is the described 4th
The thickness of medium D, C are the speed of light in a vacuum, and Δ f is the microwave frequency interval of filter.
The microwave lens filter, wherein the filtering of the lens filters are as follows: when microwave irradiation is to described
When mirror filter, the input of microwave is successively completed by the first medium A, second medium B, third medium C, the 4th medium D,
And gradually pass through the third medium C, second medium B, first medium A again, complete the output of microwave；Process of the microwave in transmission
In gradually absorb and filter fall unwanted frequency wave band, selection leave required microwave, realize the filtering of microwave；And it is transmitting
In the process, using the focusing principle of convex lens, so that the microwave through lens filters focuses at its focal position, letter is realized
The enhancing of number energy.
The utility model has the advantages that
The design of the utility model microwave lens filter construction is simple, rationally, for by first medium A, second medium B, the
Three medium C and the 4th medium D are superimposed the convex lens structures form of composition in certain sequence, wherein first medium A, second medium B,
Third medium C, the 4th medium D are absorbing meta-material, in transmission process, using the focusing principle of convex lens, so that through
The microwave of lens filters focuses at its focal position, realizes the enhancing of signal energy, passes through the adjusting of microwave in this way, so that it may
The absorption for completing clutter, realizes the filtering of clutter, and 100% filter effect is realized to selected microwave frequency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model microwave lens filter；
Fig. 2 is the filtering principle figure of the utility model microwave lens filter.
Specific embodiment
As shown in Figure 1, the utility model microwave lens filter, by four kinds of different media superposition group in certain sequence
At composition convex lens structures form；Specifically include first medium A, second medium B, third medium C and the 4th medium D.
4th medium D is located at the middle position of filter, i.e., the utility model microwave lens filter is with the 4th medium D
Centered on, the two sides of the 4th medium D are successively superimposed with first medium A, second medium B and third medium C from outside to inside；Its
In, first medium A, second medium B, the third medium C of the 4th two sides medium D are symmetric, first medium A, second
The medial surface of medium B and third medium C are cancave cambered surface structure, and lateral surface is convex globoidal structure.First medium A, second is situated between
The radian or radius etc. of matter B and third medium C, the practical magnetic of the wave frequency rate and absorbing material that filter according to actual needs
The factors such as conductance, dielectric constant determine.
First medium A, second medium B, third medium C, the 4th medium D are absorbing meta-material.
The refractive index of first medium A is nA, thickness a=λ/4nA。
The refractive index of second medium B is nB, thickness b=λ/4nB。
The refractive index of third medium C is nC, thickness c=λ/4nC。
4th medium D with a thickness of d=C/2 Δ f, wherein d is the thickness of the 4th medium D, and C is the speed of light in a vacuum
Degree, Δ f are the microwave frequency interval of filter.
The absorbing meta-material of the utility model can be used but be not limited to inhale wave rubber, inhales wave sponge, antiradar coatings, iron oxygen
Body absorbing material or nano material, electrochromic material, polycrystalline iron fiber, chiral material, conduction high polymer, breadboardin material
Material and the new materials such as electromagnetism Meta Materials etc., design parameter according to the actual situation depending on.
The absorbing meta-material includes conductive geometry layer and air layer；Wherein, the electromagnetic performance master of the absorbing meta-material
It to be determined by the factors such as arrangement mode between the planform of conductive geometry and air layer, size and each layer,
Change the arrangement mode between corresponding planform, size and layer, may be implemented to change refractive index, electromagnetism stealth, complete
Beauty inhales wave, improves wave transparent performance and polarizing control etc.；The parameter of configuration corresponding conductive geometry layer and air layer, obtains institute
The effective dielectric constant and magnetic conductivity needed realizes the adjusting of microwave, completes the absorption of clutter, realize the filtration of microwave.
The wave-absorbing mechanism of the absorbing meta-material is: in resonance and antiresonance region, the multiple dielectric of marking material loss characteristic
The imaginary part of constant and complex permeability also reaches a peak value, it means that it is special that Meta Materials can show strong absorption to electromagnetic wave
Property.It can be divided into the Meta Materials wave-absorber based on EMR electromagnetic resonance and the Meta Materials wave-absorber based on circuit resonance by loss mechanism.
As shown in Fig. 2, the filtering of the utility model microwave lens filter are as follows:
When microwave irradiation is to microwave lens filter, successively by first medium A, second medium B, third medium C, the
Four medium D complete the input of microwave, and gradually pass through third medium C, second medium B, first medium A again, complete the defeated of microwave
Out；Microwave gradually absorbs and filters unwanted frequency wave band during transmission, and selection leaves required microwave, realizes
The filtering of microwave；And in transmission process, using the focusing principle of convex lens, so that the microwave through microwave lens filter is poly-
Coke realizes the enhancing of signal energy at its focal position.
The design of the utility model microwave lens filter construction is simple, reasonable, by the adjusting to microwave, completes clutter
It absorbs, realizes the filtration of clutter, 100% filter effect is realized to selected microwave frequency.
Claims (4)
1. a kind of microwave lens filter, it is characterised in that: the lens filters are by first medium (A), second medium
(B), third medium (C) and the 4th medium (D) are superimposed the convex lens structures form of composition in certain sequence；
The first medium (A), second medium (B), third medium (C) and the 4th medium (D) are absorbing meta-material；
4th medium (D) is located at the middle position of filter, and the opposite sides face of the 4th medium (D) is from outside to inside
Successively it is superimposed with the first medium (A), second medium (B) and third medium (C)；
Positioned at the 4th medium (D) the opposite sides face the first medium (A), second medium (B) and third medium (C) at
Symmetrical, the medial surface of the first medium (A), second medium (B) and third medium (C) is cancave cambered surface structure, outside
Face is convex globoidal structure.
2. microwave lens filter as described in claim 1, it is characterised in that: the refractive index of the first medium (A) is nA,
Thickness a=λ/4nA；
The refractive index of the second medium (B) is nB, thickness b=λ/4nB；
The refractive index of the third medium (C) is nC, thickness c=λ/4nC。
3. microwave lens filter as described in claim 1, it is characterised in that: thickness d=C/2 of the 4th medium (D)
Δ f, wherein d is the thickness of the 4th medium (D), and C is the speed of light in a vacuum, and Δ f is between the microwave frequency of filter
Every.
4. microwave lens filter as described in claim 1, which is characterized in that the filtering of the lens filters are as follows:
When microwave irradiation is to the lens filters, successively by the first medium (A), second medium (B), third medium (C),
4th medium (D) completes the input of microwave, and gradually passes through the third medium (C), second medium (B), first medium again
(A), the output of microwave is completed；Microwave gradually absorbs and filters unwanted frequency wave band during transmission, and selection leaves
Required microwave realizes the filtering of microwave；And in transmission process, using the focusing principle of convex lens, so that through lens
The microwave of filter focuses at its focal position, realizes the enhancing of signal energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820063307.XU CN208189750U (en) | 2018-01-16 | 2018-01-16 | A kind of microwave lens filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820063307.XU CN208189750U (en) | 2018-01-16 | 2018-01-16 | A kind of microwave lens filter |
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| Publication Number | Publication Date |
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| CN208189750U true CN208189750U (en) | 2018-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820063307.XU Withdrawn - After Issue CN208189750U (en) | 2018-01-16 | 2018-01-16 | A kind of microwave lens filter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108365305A (en) * | 2018-01-16 | 2018-08-03 | 成都信息工程大学 | A kind of microwave lens filter and its filtering method |
-
2018
- 2018-01-16 CN CN201820063307.XU patent/CN208189750U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108365305A (en) * | 2018-01-16 | 2018-08-03 | 成都信息工程大学 | A kind of microwave lens filter and its filtering method |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181204 Effective date of abandoning: 20201222 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20181204 Effective date of abandoning: 20201222 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |