CN105591180B - A kind of millimeter wave THz wave waveguide duplexer - Google Patents
A kind of millimeter wave THz wave waveguide duplexer Download PDFInfo
- Publication number
- CN105591180B CN105591180B CN201610064299.6A CN201610064299A CN105591180B CN 105591180 B CN105591180 B CN 105591180B CN 201610064299 A CN201610064299 A CN 201610064299A CN 105591180 B CN105591180 B CN 105591180B
- Authority
- CN
- China
- Prior art keywords
- port
- wave
- millimeter wave
- type waveguide
- waveguide junction
- 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.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/207—Hollow waveguide filters
Landscapes
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention discloses a kind of millimeter wave THz wave waveguide duplexers, belong to millimeter wave and THz wave field of radar, the duplexer includes T-type waveguide junction and medium, T-type waveguide junction is a T-type hollow housing structure, one end of its horizontal component extend horizontally away descending trapezoidal transition structure, the horizontal component of T-type waveguide junction and the port of vertical component are rectangle, the port-for-port I of described horizontal component one end, the port-for-port III of the trapezoidal transition structure, the port-for-port II of the vertical component, the medium is a rectangle structure for carrying sheet metal, its length is consistent with the length of the horizontal component of T-type waveguide junction, it is wide and high consistent with the width and height of port III, medium passes through inside T-type waveguide junction and contacts and fix with the inner surface of T-type waveguide junction；The present invention can overcome the problems, such as that millimeter wave and the transmission of THz wave Shared aperture are difficult.
Description
Technical field
The invention belongs to millimeter waves and THz wave field of radar, and in particular to a kind of millimeter wave THz wave waveguide duplex
Device.
Background technology
Cloud is the important factor of influence ground vapour system radiation balance, and is the key that influence whole world meteorology and climate change gas
As one of element, the accurate description of distribution and the variation of cloud is to promote reply climate change ability and improve weather forecast to be badly in need of solution
Important scientific issues certainly.
Millimetre-wave radar is the effective means of more ripe observation cloud at present, it is using cloud particle to the Rayleigh scattering of electromagnetic wave
Characteristic analyzes the microcosmic and macroscopic properties of cloud by the radar return to cloud.For centimeter wave radar, millimeter wave thunder
There is higher detectivity up to cloud particle, it can be detected from a diameter of several microns of cloud particle to weak precipitation particles
Range；Relative to laser radar, millimetre-wave radar can pass through multi layer cloud, describe cloud internal physical structure, and can be continuous
Monitor the vertical section variation of cloud.
The Terahertz science and technology emerging interdisciplinary field swift and violent as current development, has uniqueness for meteorological detection
Superiority and important application, be a forward-looking and strategic research field.For timely and accurately being influenced on height
Weather occurrence and development variation carries out the requirement of monitoring and early warning, and the accurate description of cloud particle can provide key message.Cloud particle
There is strong backscattering characteristic in terahertz wave band, scattered signal intensity is in the phase of the wave band and cloud particle, snow crystal
Melting process it is highly relevant, therefore Terahertz cloud radar can pass through the evolution for monitoring cloud particle, support heavy rain typhoon etc.
Height influences weather warning.The limitation of the millimeter wave cloud radar that has used due to observing wave band at present, can not accurately provide with
Upper information.As can Terahertz, the observation of millimeter wave cloud radar multi-source Space Consistency and key application technology are broken through as early as possible, in conjunction with existing
There are observing capacity, development multi-source, multiple dimensioned observation data assimilation, fusion and integrated technology that will significantly improve heavy rain evolution
Monitoring and evaluation capacity, to prevent and reduce natural disasters and coping with climate change service.
Millimeter wave and Terahertz double frequency are total to the realizations of the beam antennas such as aperture by the weight as millimeter wave Terahertz cloud radar
Want technical support.And for current double frequency/multifrequency shared aperture antenna, working frequency range can not reach requirement, millimeter wave
With THz wave Shared aperture transmission problem is more difficult overcomes, and the present invention overcomes problem above.
Invention content
In view of this, the present invention provides a kind of millimeter wave THz wave waveguide duplexer, it is not only able to overcome current
The working frequency range of double frequency/multifrequency shared aperture antenna can not reach the requirement of high band, additionally it is possible to overcome millimeter wave and Terahertz
The difficult problem of wave Shared aperture transmission.
Realize that embodiment of the present invention is as follows：
A kind of millimeter wave THz wave waveguide duplexer is a kind of hollow shell structure with triple channel, which includes
T-type waveguide junction and medium, the T-type waveguide junction are a T-type hollow housing structures, and one end of horizontal component is extend horizontally away
Descending trapezoidal transition structure, the horizontal component of T-type waveguide junction and the port of vertical component are rectangle, the horizontal part
The port-for-port III of the port-for-port I of point one end, the trapezoidal transition structure of the horizontal component other end, it is described vertical
Partial port-for-port II, the medium are a rectangle structure for carrying sheet metal, the water of length and T-type waveguide junction
The length of flat part is consistent, wide and high consistent with the width and height of port III, medium pass through T-type waveguide junction inside and with T-type wave
It leads the inner surface contact of knot and fixes.
Further, the port I is connected with antenna by transmitting device, the port I transmission millimeter waves and Terahertz
The mixed recharge of wave, port II transmit millimeter wave, and the cross-sectional height for transmitting the external millimeter wave-guiding of millimeter wave is more than port II
Height, port III transmit THz wave.
Further, the medium is solid quartz.
Further, the shape of the sheet metal is rectangle or circle.
Further, the sheet metal does not contact with the upper lower inner surface of T-type waveguide junction, or only contacts Nei Biao up and down
One in face.
Further, the T-type waveguide junction uses aluminium, iron, copper, aluminium alloy, ferroalloy or copper alloy.
Advantageous effect：
(1) design of the invention breaches Terahertz, the observation of millimeter wave cloud radar multi-source Space Consistency and key application
Technology considerably improves monitoring and the evaluation capacity of heavy rain evolution, to prevent and reduce natural disasters and coping with climate change service；And
The back end signal transmission section of the antenna-feeder system of high-precision cloud radar system is can be applied to, and needs multiband to believe as other
Number transmission section；
(2) design of changeover portion of the present invention, by from different port millimeter wave and THz wave converge at same port,
And coaxial individual transmission is carried out to mixed millimeter wave and THz wave, on the contrary it is apparent from；The invention can not only make millimeter wave and
THz wave emits or receives to antenna Shared aperture, and simple in structure, cost-effective.
Description of the drawings
Fig. 1 is the three-dimensional cross-sectional figure of diplexer structure of the embodiment of the present invention；
Fig. 2 is the schematic top plan view of diplexer structure of the embodiment of the present invention.
Wherein, the ports 1- I, 2- port II, the ports 3- III, 4- sheet metal, 5- media.
Specific implementation mode
The present invention will now be described in detail with reference to the accompanying drawings and examples.
The present invention provides a kind of millimeter wave THz wave waveguide duplexer, structure is as shown in Figure 1, the structure includes T
Type waveguide junction and medium, the T-type waveguide junction are a T-type hollow housing structures, and one end of horizontal component is extend horizontally away
Descending trapezoidal transition structure, the horizontal component of T-type waveguide junction and the port of vertical component are rectangle, the horizontal part
The port-for-port III3 of the port-for-port I1 of point one end, the trapezoidal transition structure of the horizontal component other end, it is described to hang down
The port-for-port II2 of straight part, the medium are a rectangle structure for carrying sheet metal, length and T-type waveguide junction
Horizontal component length it is consistent, it is wide and high consistent with the width and height of port III3, medium pass through T-type waveguide junction inside and with
The inner surface of T-type waveguide junction is contacted and is fixed.Port I1 is connected with antenna by transmitting device, and the port I1 transmits millimeter wave
With the mixed recharge of THz wave, port II2 transmits millimeter wave, and the cross-sectional height for transmitting the external millimeter wave-guiding of millimeter wave is big
In the height of port II2, port III3 transmits THz wave.
For the THz wave of 340GHz, since the height of total can ensure 340GHz waves at the port ends II2
Almost reflection, and the influence according to medium to electromagnetic transmission, the field strength distribution of 340GHz waves almost collects in duplexer
In inside quartz medium and near surface so that 340GHz waves can be passed along quartz medium layer between port III3 and port I1
It broadcasts, without being leaked to port II2, and has smaller return loss between port III3 and I1.For 94GHz waves, medium
The restriction of material and port sizes makes have preferable barrier between port II2 and port III3, trapezoidal transition structure and port
The limitation of III3 sizes so that 94GHz waves cannot pass through port III3；But in order to realize between port II2 and port I1
The transmission of 94GHz waves needs the impedance matching for ensureing port II2 and port I1, to reduce return loss as possible.Here by
Several sheet metals are loaded on quartz medium layer specific position to realize (see Fig. 2), the effect of sheet metal is by adjusting 94GHz
Impedance matching is realized in field distribution of the wave in duplexer.In order to ensure that the influence that it propagates 340GHz waves can be ignored, gold
The upper and lower ends for belonging to thin slice are not contacted with outer waveguide inner wall.
Specifically, the diplexer structure described in the embodiment of the present invention can be applied to the feed rear end double frequency of cloud detection radar antenna
Wave transmission section.
In conclusion the above is merely preferred embodiments of the present invention, being not intended to limit the scope of the present invention.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (6)
1. a kind of millimeter wave THz wave waveguide duplexer is a kind of hollow shell structure with triple channel, which is characterized in that
The structure includes T-type waveguide junction and medium, and the T-type waveguide junction is a T-type hollow housing structure, one end of horizontal component
It is extend horizontally away descending trapezoidal transition structure, the horizontal component of T-type waveguide junction and the port of vertical component are rectangle,
The port-for-port of the port-for-port I (1) of described horizontal component one end, the trapezoidal transition structure of the horizontal component other end
III (3), the port-for-port II (2) of the vertical component, the medium are a rectangle structure for carrying sheet metal,
Length is consistent with the length of the horizontal component of T-type waveguide junction, and wide and high consistent with the width and height of port III (3), medium passes through
It is contacted inside T-type waveguide junction and with the inner surface of T-type waveguide junction and fixed.
2. a kind of millimeter wave THz wave waveguide duplexer as described in claim 1, port I (1) pass through transmitting device with antenna
It is connected, the mixed recharge of port I (1) the transmission millimeter wave and THz wave, port II (2) transmits millimeter wave, and transmits millimeter
The cross-sectional height of the millimeter wave-guiding of wave is more than the height of port II (2), and port III (3) transmits THz wave.
3. a kind of millimeter wave THz wave waveguide duplexer as described in claim 1, which is characterized in that the medium is solid stone
English.
4. a kind of millimeter wave THz wave waveguide duplexer as described in claim 1, which is characterized in that the shape of the sheet metal
Shape is rectangle or circle.
5. a kind of millimeter wave THz wave waveguide duplexer as described in claim 1, which is characterized in that the sheet metal it is upper
Lower both ends are not contacted with T-type waveguide inner wall.
6. a kind of millimeter wave THz wave waveguide duplexer as described in claim 1, which is characterized in that the T-type waveguide junction is adopted
With aluminium, iron, copper, aluminium alloy, ferroalloy or copper alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610064299.6A CN105591180B (en) | 2016-01-29 | 2016-01-29 | A kind of millimeter wave THz wave waveguide duplexer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610064299.6A CN105591180B (en) | 2016-01-29 | 2016-01-29 | A kind of millimeter wave THz wave waveguide duplexer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105591180A CN105591180A (en) | 2016-05-18 |
| CN105591180B true CN105591180B (en) | 2018-09-14 |
Family
ID=55930550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610064299.6A Expired - Fee Related CN105591180B (en) | 2016-01-29 | 2016-01-29 | A kind of millimeter wave THz wave waveguide duplexer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105591180B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110386B (en) * | 2017-09-27 | 2019-12-13 | 波达通信设备（广州）有限公司 | Bidirectional output waveguide duplexer |
| CN109818683B (en) * | 2019-01-10 | 2022-07-29 | 北京理工大学 | Bulk silicon MEMS waveguide combining method for terahertz frequency band space wave mixing |
| CN110247140A (en) * | 2019-06-12 | 2019-09-17 | 南京邮电大学 | Waveguide mixing ring duplexer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102110889A (en) * | 2009-12-25 | 2011-06-29 | 北京理工大学 | 8mm wave dielectric loaded moment circle transition horn antenna |
| CN202275952U (en) * | 2011-09-29 | 2012-06-13 | 中国兵器工业第二〇六研究所 | Millimeter wave circular polarization medium antenna |
| CN103779663A (en) * | 2014-02-26 | 2014-05-07 | 南京信息工程大学 | Dual-frequency orthogonal polarization high-isolation horn antenna |
-
2016
- 2016-01-29 CN CN201610064299.6A patent/CN105591180B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102110889A (en) * | 2009-12-25 | 2011-06-29 | 北京理工大学 | 8mm wave dielectric loaded moment circle transition horn antenna |
| CN202275952U (en) * | 2011-09-29 | 2012-06-13 | 中国兵器工业第二〇六研究所 | Millimeter wave circular polarization medium antenna |
| CN103779663A (en) * | 2014-02-26 | 2014-05-07 | 南京信息工程大学 | Dual-frequency orthogonal polarization high-isolation horn antenna |
Non-Patent Citations (2)
| Title |
|---|
| "dual-band coaxial feed system with ridged and T-septum sectoral waveguides";H.Z.ZHANG;《IEE PROCEEDINGS-MICROWAVES,ANTENNAS AND PROPAGATION》;20051007;第152卷(第5期);全文 * |
| "The designing,manufacturing,and testing of a dual-band feed system for the parkes radio telescope";C Grant et al;《IEEE ANTENNAS AND WIRELESS PROPAGATION MAGAZINE》;20051114;第47卷(第3期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105591180A (en) | 2016-05-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105591180B (en) | A kind of millimeter wave THz wave waveguide duplexer | |
| Elwi et al. | A miniaturized lotus shaped microstrip antenna loaded with EBG structures for high gain-bandwidth product applications | |
| CN108258391A (en) | A kind of Double frequency feed source loudspeaker | |
| Keerthi et al. | Design of C-band microstrip patch antenna for radar applications using IE3D | |
| Sarkar et al. | Effects of melting layer on Ku-band signal depolarization | |
| CN205303676U (en) | Super material structure , antenna house and antenna system | |
| Pallavi et al. | Modeling of a negative refractive index metamaterial unit-cell and array for aircraft surveillance applications | |
| Abuhdima et al. | Effect of sand and dust storms on GSM coverage signal in southern Libya | |
| CN103259095A (en) | Micro-strip antenna facing optical and microwave coaxial detection application | |
| Cavalcante et al. | Mobile radio propagation along mixed paths in forest environment | |
| Zhao et al. | Maritime mobile channel transmission model based on ITM | |
| US11848695B2 (en) | Systems and methods for mitigating multipath radio frequency interference | |
| Patel et al. | High gain metamaterial radome design for microstrip based radiating structure | |
| Sheng et al. | Study of parabolic equation method for millimeter-wave attenuation in complex meteorological environments | |
| Yamamoto et al. | Design of a leaf-shaped bowtie slot antenna electromagnetically fed by a microstrip line | |
| Espin-Lopez et al. | Compact 3D-printed variable-infill antenna for snow cover monitoring | |
| Musa et al. | A Review of Microwave Cross Polarization in Sand and Dust Storms. | |
| Hong et al. | Validation of the Mie theory for rain attenuation at 72 and 84 GHz | |
| CN105811122A (en) | Radar antenna and radar including same | |
| Keerthi et al. | Design of 9x9 Microstrip patch antenna with Dual-Feed for C-Band radar application using ADS | |
| Paul | Calculation of Rain Attenuation and Mitigate Using Macroscopic Diversity in Millimeter Wave & THz Radio Wireless Communication Systems | |
| CN110429375A (en) | A kind of broad-band chip integrated waveguide double-slit antenna | |
| De et al. | Design and development of a unit element microstrip antenna for aircraft collision avoidance system | |
| Gao et al. | A scheme to detect sand/dust weather applying meteorological radars | |
| Dong et al. | Effects of charged particles size distribution on microwave propagation in sandstorms |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180914 Termination date: 20200129 |