CN109004321A - A kind of quasi-optics submillimeter wave isolator based on Medium Wave Guide - Google Patents
A kind of quasi-optics submillimeter wave isolator based on Medium Wave Guide Download PDFInfo
- Publication number
- CN109004321A CN109004321A CN201810675573.2A CN201810675573A CN109004321A CN 109004321 A CN109004321 A CN 109004321A CN 201810675573 A CN201810675573 A CN 201810675573A CN 109004321 A CN109004321 A CN 109004321A
- Authority
- CN
- China
- Prior art keywords
- dichroscope
- wave guide
- quasi
- optics
- phase transition
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/32—Non-reciprocal transmission devices
- H01P1/36—Isolators
Landscapes
- Polarising Elements (AREA)
Abstract
The invention discloses a kind of quasi-optics submillimeter wave isolator based on Medium Wave Guide, including input terminal, duplexer, dichroscope, Medium Wave Guide, cooling device and output end, the duplexer includes first wire grid polarizer and a quarter phase transition arrangement, the first wire grid polarizer and a quarter phase transition arrangement relative datum horizontal direction are placed in parallel in 45 °, the a quarter phase transition arrangement by the second wire-grid polarizer and plane microscope group at, the dichroscope includes dielectric layer and semiconductor layer, vertical distribution above and below the duplexer and the dichroscope relative datum horizontal direction, incidence wave is successively converted to circularly polarized light through the first wire grid polarizer and a quarter phase transition arrangement with 45 ° of incidence angles, after the dichroscope changes direction of rotation, along former Road is successively exported through a quarter phase transition arrangement and the first wire grid polarizer from the output end, has the characteristics that structure is simple, inexpensive and low-loss.
Description
Technical field
The present invention relates to a kind of quasi-optics submillimeter wave isolator based on Medium Wave Guide belongs to optoisolator technology neck
Domain.
Background technique
As millimeter wave, submillimeter wave technology are answered the fields such as radar detection, satellite communication, electronic warfare, defects detection
With increasingly wider, the especially non-destructive testing of terahertz wave band (0.03mm-3mm).In submillimeter region, the transmission of submillimeter wave
As long as being divided into quasi-optical transmission and Medium Wave Guide transmitting two kinds.Quasi optics are related to more lens component, and imaging is caused to occur
Interference fringe and stability are insufficient, and Medium Wave Guide transmission can be solved the problems, such as effectively.Polarization imaging can be used as conventional vibration amplitude simultaneously
Effective supplement of imaging, it is therefore desirable to which a kind of isolator or polarising means realize the polarization conversion of submillimeter wave.
In order to realize polarization conversion, generally polarization separation, traditional polarization conversion can be realized using devices such as wiregratings
Device uses independent wiregrating, needs four arms, and the relevant load absorption device that needs to arrange in pairs or groups is as decaying.Which increase system at
Sheet and device complexity, while there are biggish submillimeter waves to be lost for pure Quasi optics.
Summary of the invention
Simple, low cost that the technical problem to be solved by the invention is to provide a kind of structures and low-loss it is suitable for
The isolator of submillimeter wave.
In order to solve the above technical problems, the technical solution adopted by the present invention are as follows:
A kind of quasi-optics submillimeter wave isolator based on Medium Wave Guide, including input terminal, duplexer, dichroscope, medium wave
It leads, cooling device and output end, the duplexer includes first wire grid polarizer and a quarter phase transition arrangement, described
First wire grid polarizer and a quarter phase transition arrangement relative datum horizontal direction are placed in parallel in 45 °, described
Dichroscope includes dielectric layer and semiconductor layer, above and below the duplexer and the dichroscope relative datum horizontal direction
Vertical distribution, incidence wave are successively filled through the first wire grid polarizer and a quarter phase transition with 45 ° of incidence angles
It sets and is converted to circularly polarized light, after the dichroscope changes direction of rotation, Yan Yuanlu successively turns through a quarter phase
Changing device and the first wire grid polarizer are exported from the output end.
The dichroscope further includes the absorbed layer below the semiconductor layer, and the absorbed layer is penetrated for absorbing
The residual wave of semiconductor is avoided being repeated several times and be reflected.
The cooling device includes longitudinal magnetic field system, and the dichroscope is located in the longitudinal magnetic field system.
The cooling device includes constant temperature regulator, and the dichroscope is in the constant temperature regulator.
The constant temperature regulator temperature setting is T=77K.
The a quarter phase transition arrangement by the second wire-grid polarizer and plane microscope group at.
The Medium Wave Guide has triangle rib structure using circle Medium Wave Guide, inside.
Advantageous effects of the invention: this isolator is used for the wave beam polarization conversion of Medium Wave Guide, low-loss is utilized
Characteristic frequency covering submillimeter region semiconductor structure and longitudinal magnetic system can be effectively reduced isolator quality and
Dielectric loss is applicable to quasi-optical submillimeter wave polarization conversion, is applicable in wave band in 0.8-1mm, can replace four traditional arms
Isolator provides a kind of important function element for terahertz polarization imaging.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is Medium Wave Guide triangle rib structure in the present invention；
Fig. 3 is wiregrating schematic diagram in the present invention.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
As shown in Figure 1, a kind of quasi-optics submillimeter wave isolator based on Medium Wave Guide, including input terminal, duplexer, two
To Look mirror 3, Medium Wave Guide 7, longitudinal magnetic field system 5, constant temperature regulator 6 and output end, duplexer includes relative datum level
Direction is in 45 ° of wiregratings 1 and a quarter phase transition arrangement 2 being placed in parallel, and incidence wave is from input terminal with inclined with first wire grid
45 ° of incidence angles of device of shaking input, and guarantee incident and outgoing electromagnetic wave directionality, a quarter phase transition arrangement 2 is by wiregrating 21
It is formed with plane mirror 22, wiregrating 1 as polarization separator as shown in figure 3, use, and using metal structure, different grid parameters are suitable
It is diameter 8um, period 30um (applicable wavelengths range about 1mm) with wavelength difference, such as grid parameters, according to the characteristic of wiregrating, electricity
The field vector electromagnetic wave component parallel with wiregrating direction is reflected, and the electric field intensity electromagnetic wave component vertical with wiregrating direction is saturating
It penetrates, the wiregrating angular separation of wiregrating 1 and wiregrating 21 is 45 °, makes the phase difference pi/2 of incidence wave and secondary counter ejected wave, realizes line
The mutual conversion of polarised light and circularly polarized light, about 3 dichroscope successively include dielectric film 31, semiconductor layer and absorption
Layer, dielectric film 31 are used to generate the phase difference of pi/2, and n medium > n semiconductor, when circular polarization polarized wave passes through dielectric film,
It being reflected from semiconductor surface, generates the phase difference of pi/2, back wave is secondary by dielectric film, so that the phase difference of π is generated, circle
The left rotation and right rotation characteristic of polarization polarized wave changes, and absorbed layer avoids repeatedly weight for absorbing the residual wave for penetrating semiconductor
Interflection, dichroscope 3 are placed in longitudinal magnetic field system 5, semiconductor structure can be made to be quickly cooled down, dichroscope 3 together with
Longitudinal magnetic field system 5 is placed in the constant temperature regulator 6 of constant temperature T=77K, and right-circularly polarized light passes through a quarter along former road
Phase transition arrangement 2 is emitted and is parallel to wiregrating 21 for electric field intensity direction of vibration, because wiregrating 1 and 21 angle of wiregrating are 45 °,
When by wiregrating 1, electric field intensity can do Orthogonal Decomposition using 1 wiregrating of wiregrating as Y-axis, finally perpendicular to the line in 1 wiregrating direction of wiregrating
Polarised light is exported from output port.Medium Wave Guide 7 is made using circle Medium Wave Guide of phenolic resin, and inside has triangle rib
Structure, as shown in Fig. 2, facilitating the propagation of HE11 mode.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of quasi-optics submillimeter wave isolator based on Medium Wave Guide, characterized in that including input terminal, duplexer, two to
Look mirror (3), Medium Wave Guide (7), cooling device and output end, the duplexer include first wire grid polarizer (1) and four points
One of phase transition arrangement (2), the first wire grid polarizer (1) and a quarter phase transition arrangement (2) it is opposite
Datum-plane direction is placed in parallel in 45 °, and the dichroscope (3) includes dielectric layer (31) and semiconductor layer, the duplex
Vertical distribution, incidence wave are successively passed through described up and down with 45 ° of incidence angles for device and the dichroscope (3) relative datum horizontal direction
First wire grid polarizer (1) and a quarter phase transition arrangement (2) are converted to circularly polarized light, through the dichroscope
(3) after changing direction of rotation, Yan Yuanlu is successively polarized through a quarter phase transition arrangement (2) and the first wire grid
Device (1) is exported from the output end.
2. a kind of quasi-optics submillimeter wave isolator based on Medium Wave Guide according to claim 1, characterized in that described
Dichroscope (3) further includes the absorbed layer (4) below the semiconductor layer, and the absorbed layer (4) penetrates half for absorbing
The residual wave of conductor is avoided being repeated several times and be reflected.
3. -2 described in any item a kind of quasi-optics submillimeter wave isolators based on Medium Wave Guide according to claim 1, special
Sign is that the cooling device includes longitudinal magnetic field system (5), and the dichroscope (3) is located at the longitudinal magnetic field system (5)
In.
4. a kind of quasi-optics submillimeter wave isolator based on Medium Wave Guide according to claim 3, characterized in that described
Cooling device includes constant temperature regulator (6), and the dichroscope (3) is in the constant temperature regulator (6).
5. a kind of quasi-optics submillimeter wave isolator based on Medium Wave Guide according to claim 4, characterized in that described
Constant temperature regulator (6) temperature setting is T=77K.
6. a kind of quasi-optics submillimeter wave isolator based on Medium Wave Guide according to claim 1, characterized in that described
A quarter phase transition arrangement (2) is made of the second wire-grid polarizer (21) and plane mirror (22).
7. a kind of quasi-optics submillimeter wave isolator based on Medium Wave Guide according to claim 1, characterized in that described
Medium Wave Guide (7) has triangle rib structure using circle Medium Wave Guide, inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810675573.2A CN109004321B (en) | 2018-06-27 | 2018-06-27 | Quasi-optical submillimeter wave isolator based on dielectric waveguide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810675573.2A CN109004321B (en) | 2018-06-27 | 2018-06-27 | Quasi-optical submillimeter wave isolator based on dielectric waveguide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109004321A true CN109004321A (en) | 2018-12-14 |
| CN109004321B CN109004321B (en) | 2021-07-09 |
Family
ID=64600837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810675573.2A Active CN109004321B (en) | 2018-06-27 | 2018-06-27 | Quasi-optical submillimeter wave isolator based on dielectric waveguide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109004321B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115378468A (en) * | 2022-09-17 | 2022-11-22 | 德氪微电子(深圳)有限公司 | Millimeter wave isolating device |
| US11611364B1 (en) | 2022-10-20 | 2023-03-21 | Deco Integration Technology Co., Limited | Millimeter-wave isolation device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512606A (en) * | 2013-10-09 | 2014-01-15 | 中国科学院空间科学与应用研究中心 | Complete-polarization microwave radiometer calibrating device and calibrating method thereof |
| CN104266768A (en) * | 2014-10-24 | 2015-01-07 | 中国科学院空间科学与应用研究中心 | Novel complete polarization temperature-changing source device of microwave radiometer |
| CN107275727A (en) * | 2017-06-28 | 2017-10-20 | 北京理工大学 | A kind of 340GHz is based on film-type device quasi-optical broadband duplexer |
| CN207165721U (en) * | 2016-11-17 | 2018-03-30 | 山东省科学院海洋仪器仪表研究所 | A kind of millimeter wave multi-frequency multi-mode mode excitation device |
-
2018
- 2018-06-27 CN CN201810675573.2A patent/CN109004321B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512606A (en) * | 2013-10-09 | 2014-01-15 | 中国科学院空间科学与应用研究中心 | Complete-polarization microwave radiometer calibrating device and calibrating method thereof |
| CN104266768A (en) * | 2014-10-24 | 2015-01-07 | 中国科学院空间科学与应用研究中心 | Novel complete polarization temperature-changing source device of microwave radiometer |
| CN207165721U (en) * | 2016-11-17 | 2018-03-30 | 山东省科学院海洋仪器仪表研究所 | A kind of millimeter wave multi-frequency multi-mode mode excitation device |
| CN107275727A (en) * | 2017-06-28 | 2017-10-20 | 北京理工大学 | A kind of 340GHz is based on film-type device quasi-optical broadband duplexer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115378468A (en) * | 2022-09-17 | 2022-11-22 | 德氪微电子(深圳)有限公司 | Millimeter wave isolating device |
| US11611364B1 (en) | 2022-10-20 | 2023-03-21 | Deco Integration Technology Co., Limited | Millimeter-wave isolation device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109004321B (en) | 2021-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Ran et al. | Ultra-wideband linear-to-circular polarization converter with ellipse-shaped metasurfaces | |
| Zhang et al. | Broadband metamaterial reflectors for polarization manipulation based on cross/ring resonators | |
| CN105353520A (en) | Spatial optical 90-degree mixer with high mixing efficiency | |
| CN106597662B (en) | A kind of quasi-optical circulator of Terahertz transmit-receive sharing dual polarization | |
| Yu et al. | High-efficiency ultra-thin polarization converter based on planar anisotropic transmissive metasurface | |
| CN109004321A (en) | A kind of quasi-optics submillimeter wave isolator based on Medium Wave Guide | |
| Dong et al. | The reflection and transmission of electromagnetic waves by a uniaxial chiral slab | |
| Wang et al. | High‐efficiency cross and linear‐to‐circular polarization converters based on novel frequency selective surfaces | |
| Zheng et al. | Ultra-wideband side-lobe level suppression using amplitude-adjustable metasurfaces | |
| Lin et al. | Chirality-intrigged spin-selective metasurface and applications in generating orbital angular momentum | |
| CN107132663B (en) | 90 ° of frequency mixers of spatial light that splitting ratio adaptively regulates and controls | |
| Yin et al. | Broadband terahertz polarization converter with anomalous reflection based on phase gradient metasurface | |
| Kiani et al. | Quarter-wave plate polariser based on frequency selective surface | |
| Liao et al. | A polarization converter with single‐band linear‐to‐linear and dual‐band linear‐to‐circular based on single‐layer reflective metasurface | |
| Zhang et al. | Asymmetric dual‐band linear‐to‐circular converter by bi‐layered chiral metamaterial | |
| CN106842603B (en) | 90 ° of space optical mixer units of monocrystal space-efficient | |
| CN110908031A (en) | High-frequency polarization signal conversion method | |
| Guo et al. | A novel reconfigurable metasurface with coincident and ultra-wideband LTL and LTC polarization conversion functions | |
| Zhu et al. | Sub-terahertz 3-D printed all-dielectric low-cost low-profile lens-integrated polarization Beam splitter | |
| Wang et al. | A terahertz wideband linear-to-circular polarization converter based on meandering-structured metasurface | |
| Lu et al. | Single-layer ultra-wideband multifunctional transmissive metasurface | |
| Sun et al. | All metal focusing transmitarray antenna for high-temperature plasma diagnosis | |
| Tahir | A Broadband metasurface for cross polarization conversion applications | |
| Xu et al. | 0.02-wavelengths-thick transmission-type designer wave plate with high efficiency | |
| Jeong et al. | Ultra-wide band polarization converter based on ultra-thin bi-layer slot structures |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |