CN106654486A - Waveguide circuit breaker for terahertz mixer - Google Patents
Waveguide circuit breaker for terahertz mixer Download PDFInfo
- Publication number
- CN106654486A CN106654486A CN201611246068.3A CN201611246068A CN106654486A CN 106654486 A CN106654486 A CN 106654486A CN 201611246068 A CN201611246068 A CN 201611246068A CN 106654486 A CN106654486 A CN 106654486A
- Authority
- CN
- China
- Prior art keywords
- waveguide short
- frequency mixer
- waveguide
- short
- terahertz
- 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.)
- Pending
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
- H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/10—Auxiliary devices for switching or interrupting
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/10—Auxiliary devices for switching or interrupting
- H01P1/12—Auxiliary devices for switching or interrupting by mechanical chopper
- H01P1/122—Waveguide switches
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention discloses a waveguide circuit breaker for a terahertz mixer. The waveguide circuit breaker (1) is arranged in a clamping groove (2) of the terahertz mixer and comprises a round table (8) and a cuboid (9), wherein the waveguide circuit breaker is characterized in that the round table (8) is tangent with the cuboid (9) to form a whole; a gap (10) is arranged in the upper half part of the round table (8), so that the gap (10) becomes a stress pivot for tweezers operation when a cavity of the terahertz mixer is opened, and the waveguide circuit breaker (1) can be installed and taken out. The waveguide circuit breaker disclosed by the invention has the advantages of being simple in structure, reliable in performance and convenient to operate.
Description
Technical field
The present invention relates to THz devices field, more particularly to a kind of waveguide short device for Terahertz frequency mixer.
Background technology
Superhet possesses very high sensitivity and frequency spectrum precision, can be used for from 0.1THz until 2.5THz
Terahertz detection.Frequency mixer is located at the front end of receiver, under the driving of local oscillation signal, high-frequency signal is converted into easily place
The intermediate-freuqncy signal of reason, principal mode has superconduction-insulation-super conducting mixer, thermoelectron radiation frequency mixer, Schottky diode mixing
Device.Compared with first two frequency mixer, Schottky diode frequency mixer can work at room temperature, structure is compacter, performance more
Plus it is reliable, therefore become the first-selection of spaceborne millimeter wave radiometer.
The key problem of Terahertz mixer design is how to realize radiofrequency signal, local oscillation signal, intermediate-freuqncy signal to Xiao Te
The matching of based diode.Wherein radiofrequency signal, the frequency of local oscillation signal are higher, and corresponding transmission line is all waveguiding structure.Two poles
Pipe is welded on quartz substrate, and corresponding transmission line is suspension microstrip structure.Then, radio frequency, local oscillation signal reach diode
A waveguide can all be passed through before to the conversion of suspension micro-strip.This converting member is the quartzy base by being placed on intermediate channel
Piece and waveguide channels intersect vertically realization, and wherein the position in the short-circuit face of waveguide affects high-frequency signal to the matching of diode.
Waveguide short face of the prior art is designed with two kinds.A kind of is fixed short-circuit face, and its structure is most simple.Cause
For the size less (size is 200um or so during frequency 0.6THz) of the waveguide channels of terahertz wave band, machining is wanted
Ask very high (better than 5um), the simpler performance of structure is more reliable.The shortcoming of this structure is it is also obvious that structure once fixation, performance
Also just secure.Another kind is the short-circuit face using connection micrometer, and structure is more complicated.In this structure, waveguide channels
Place a short-circuit block that can be slided in end.The other end connection micrometer of the short-circuit block, by micrometer short circuit is controlled
Block position in the waveguide.This design is in the waveguide channels of reduced size and unreliable, and peripheral structure is huge, causes
The overall structure of frequency mixer becomes complicated.
An independent short-circuiting device can realize the adjustable waveguide short face in position used in cavity.Now, cavity is adopted
The form separately designed with upper half cavity, lower half cavity, after two and half cavitys zoarium a complete cavity is formed.Two and half chambers
When body is opened, short-circuiting device can be installed or removed in the draw-in groove of lower half cavity, without the quartzy base in impact upper half cavity
Piece.Ideally, short-circuiting device can be arbitrarily dismounting, and not affect the circuit of the fit or quartz substrate of cavity.But
In practical operation, occur in that difficult short-circuiting device dismounting, abrasion draw-in groove, even affect the secondary fit problem of cavity.In addition, cavity
When being again turned on after fit, short-circuiting device is to stay in upper half cavity or lower half cavity at random.If short-circuiting device is to stay in quartz
The upper half cavity that substrate is located, vibrations when dismantling short-circuiting device obviously influence whether quartz substrate.
The content of the invention
It is an object of the invention to overcome drawbacks described above present in the waveguide short face in existing Terahertz frequency mixer, carry
For a kind of simple structure, dependable performance, easy to operate waveguide short device.
To achieve these goals, the present invention provides a kind of waveguide short device for Terahertz frequency mixer, the waveguide
Short-circuiting device is arranged in the draw-in groove 2 of Terahertz frequency mixer, and the waveguide short device 1 includes round platform 8 and cuboid 9, the round platform 8
One entirety of formation tangent with cuboid 9；The top half of the round platform 8 arranges a gap 10 so that Terahertz frequency mixer
Cavity when being opened, gap 10 becomes the fulcrum force of tweezers operation, and waveguide short device 1 can be mounted and take out.
In above-mentioned technical proposal, the material of the waveguide short device 1 is copper alloy.
In above-mentioned technical proposal, the waveguide short device 1 is identical with the number of draw-in groove 2, and number is 1 or 2.
In above-mentioned technical proposal, the diameter of the cylinder groove 11 of the Terahertz frequency mixer is bigger than the bottom surface diameter of round platform 8
20um, makes waveguide short device 1 snugly fit into draw-in groove 2.
In above-mentioned technical proposal, the bottom surface diameter 20um bigger than upper bottom surface diameter of the round platform 8 so that Terahertz is mixed
After the cavity of device is opened, waveguide short device 1 is stayed in lower chamber 6.
In above-mentioned technical proposal, the bottom surface diameter of the round platform 8 is 3mm, and the minimum of a value of the length of the cuboid 9 is
2mm。
A kind of Terahertz frequency mixer, including above-mentioned waveguide short device, the length of the cuboid 9 of each waveguide short device 1
Value at intervals of 20um；So that the adjustment in short-circuit face is at intervals of 20um；According to the performance requirement of Terahertz frequency mixer, if changing
A dry waveguide short device is tested, and therefrom selects the waveguide short device of needs.
It is an advantage of the current invention that：
The waveguide short device of present invention design, the entirety that its profile is made up of cuboid and round platform, short-circuiting device exists
Top half along round platform direction is slightly narrow.When the design causes to open cavity, short-circuiting device can firmly stay in lower half cavity
Draw-in groove, the draw-in groove without staying in upper half cavity.Short-circuiting device leaves a gap in the top half along round platform direction, into
For the fulcrum force of tweezers, the design causes the installation and removal of short-circuit block to become convenient.
Description of the drawings
Fig. 1 is scheme of installation of the short-circuiting device of the present invention in upper half cavity, lower half cavity；
Fig. 2 is the front view of the lower half cavity of the present invention；
Fig. 3 is the three-face view of the short-circuiting device of the present invention.
Accompanying drawing is identified：
1st, waveguide short device 2, draw-in groove 3, waveguide channels
4th, intermediate channel 5, quartz substrate 6, lower half cavity
7th, upper half cavity 8, round platform 9, cuboid
10th, gap 11, cylinder groove 12, long square groove
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is described in further detail.
As depicted in figs. 1 and 2, a kind of Terahertz frequency mixer, including waveguide short device 1, draw-in groove 2, waveguide channels 3, centre
Raceway groove 4, quartz substrate 5, lower half cavity 6 and upper half cavity 7；The raceway groove of the lower half cavity 6 and upper half cavity 7 be it is symmetrical,
Both can carry out zoarium or disintegration；The quartz substrate 5 is placed in upper half cavity 7, and the short-circuiting device 1 is placed on lower half chamber
In body 6.
As shown in figure 3, the waveguide short device 1 includes round platform 8 and cuboid 9, wherein round platform 8 and the tangent shape of cuboid 9
Into an entirety；The top half of the round platform 8 arranges a gap 10 so that when the cavity of Terahertz frequency mixer is opened,
Gap 10 becomes the fulcrum force of tweezers operation, and waveguide short device 1 can successfully be removed.
As shown in figure 1, the draw-in groove 2 is groove of the lower half cavity 6 on surface, its shape is identical with waveguide short device 1, including
Cylinder groove 11 and long square groove 12, both are connections；The long square groove 12 connects with waveguide channels 3；The waveguide short device 1 is pacified
It is mounted in draw-in groove 2, a short-circuit face is formed in waveguide channels 3；The intermediate channel 4 intersects vertically with waveguide channels 3, is formed
One electromagnetic field from waveguide to the conversion of suspension micro-strip.
Preferably, the material of the waveguide short device 1 is copper alloy.
The waveguide short device 1 is identical with the number of draw-in groove 2, and number is 1 or 2.
The diameter of the cylinder groove 11 20um bigger than the bottom surface diameter of round platform 8, makes waveguide short device 1 snugly fit into card
In groove 2.
The bottom surface diameter 20um bigger than upper bottom surface diameter of the round platform 8 so that after cavity is opened, waveguide short device 1
Stay in lower chamber 6.
In the present embodiment, the minimum of a value of the length of the cuboid 9 be 2mm, length value at intervals of 20um；So that
The adjustment in short-circuit face is at intervals of 20um；The bottom surface diameter of the round platform 8 is 3mm.
Radiofrequency signal, the transmission line of local oscillation signal are all waveguiding structures.Welding diode is corresponding on quartz substrate 5
Transmission line is suspension microstrip structure.Then, radio frequency, local oscillation signal all can be by a waveguides to suspension before diode is reached
The conversion of micro-strip.Wherein the position in the short-circuit face of waveguide affects high-frequency signal to the matching of diode, by the short-circuit face of adjustment
Position, improves circuit performance, compensate for the adverse effect that rigging error is brought.
The short-circuiting device for installing corresponding length is selected according to the desired location in short-circuit face, the performance test of frequency mixer is carried out；Such as
Fruit performance is not inconsistent with expection, judges the direction of the position adjustment in short-circuit face；The former short-circuiting device of dismounting, installs the short circuit of another length
Device, continues performance test；According to the variation tendency of performance, the direction of the position adjustment in short-circuit face is determined whether；Dismounting is former short
Road device, installs the short-circuiting device of another length, continues performance test, until frequency mixer performance be improved significantly.This mistake
Cheng Zhong, cavity is to need repeatedly to open, and short-circuiting device is also to need repeatedly to change, and quartz substrate is repeatedly to be torn open
The impact of dress.Present invention can assure that short-circuiting device always stays in lower chamber when opening cavity, and mount and dismount conveniently, will not
The zoarium of circuit or cavity on quartz substrate has any impact.
The size of the cavity of Terahertz frequency mixer is less, typically in centimetres.Short-circuiting device 1 is arranged in cavity, size
Can control within 3mm, not interfering with circuit board and raceway groove arrangement, the impact very little to structure.Short-circuiting device is to waveguide
The minimum adjustment interval of short road surface position is 20um, and it (is 500um according to wavelength during frequency 0.6THz that the value is about the 4% of wavelength
Calculate), Reasonable adjustment can be played a part of to circuit performance.
It should be noted last that, above example is only to illustrate technical scheme and unrestricted.Although ginseng
The present invention has been described in detail according to embodiment, it will be understood by those within the art that, the technical side to the present invention
Case is modified or equivalent, and without departure from the spirit and scope of technical solution of the present invention, it all should cover in the present invention
Right in the middle of.
Claims (7)
1. a kind of waveguide short device for Terahertz frequency mixer, the waveguide short device is arranged on the draw-in groove of Terahertz frequency mixer
(2) in, the waveguide short device (1) includes round platform (8) and cuboid (9), it is characterised in that the round platform (8) and cuboid
(9) one entirety of tangent formation；The top half of the round platform (8) arranges a gap (10) so that Terahertz frequency mixer
When cavity is opened, gap (10) becomes the fulcrum force of tweezers operation, and waveguide short device (1) can be mounted and take out.
2. the waveguide short device for Terahertz frequency mixer according to claim 1, it is characterised in that the waveguide short
The material of device (1) is copper alloy.
3. the waveguide short device for Terahertz frequency mixer according to claim 1, it is characterised in that the waveguide short
Device (1) is identical with the number of draw-in groove (2), and number is 1 or 2.
4. the waveguide short device for Terahertz frequency mixer according to claim 1, it is characterised in that the Terahertz is mixed
The diameter 20um bigger than the bottom surface diameter of round platform (8) of the cylinder groove (11) of frequency device, makes waveguide short device (1) snugly fit into card
In groove (2).
5. the waveguide short device for Terahertz frequency mixer according to claim 1, it is characterised in that the round platform (8)
Bottom surface diameter 20um bigger than upper bottom surface diameter so that after the cavity of Terahertz frequency mixer is opened, waveguide short device (1) is stayed
In lower chamber (6).
6. the waveguide short device for Terahertz frequency mixer according to claim 1, it is characterised in that the round platform (8)
Bottom surface diameter be 3mm, the minimum of a value of the length of the cuboid (9) is 2mm.
7. a kind of Terahertz frequency mixer, including several waveguide short devices based on one of claim 1-6, each waveguide short
The length value of the cuboid (9) of device (1) at intervals of 20um；So that the adjustment in short-circuit face is at intervals of 20um；According to Terahertz
The performance requirement of frequency mixer, changes several waveguide short devices and is tested, and therefrom selects the waveguide short device of needs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611246068.3A CN106654486A (en) | 2016-12-29 | 2016-12-29 | Waveguide circuit breaker for terahertz mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611246068.3A CN106654486A (en) | 2016-12-29 | 2016-12-29 | Waveguide circuit breaker for terahertz mixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106654486A true CN106654486A (en) | 2017-05-10 |
Family
ID=58836164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611246068.3A Pending CN106654486A (en) | 2016-12-29 | 2016-12-29 | Waveguide circuit breaker for terahertz mixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106654486A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110386A (en) * | 2017-09-27 | 2018-06-01 | 波达通信设备（广州）有限公司 | Bidirectional output waveguide duplexer |
| CN116914391A (en) * | 2023-09-13 | 2023-10-20 | 电子科技大学 | Terahertz waveguide mixer suitable for two-dimensional array layout |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202068378U (en) * | 2011-05-18 | 2011-12-07 | 中国科学院上海天文台 | Ka-band mixer box |
| CN102509832A (en) * | 2011-10-13 | 2012-06-20 | 中国兵器工业第二〇六研究所 | Axial broadband waveguide coaxial converter |
| CN104980111A (en) * | 2015-05-29 | 2015-10-14 | 中国科学院空间科学与应用研究中心 | Terahertz frequency mixer with position-adjustable waveguide short circuit surface |
-
2016
- 2016-12-29 CN CN201611246068.3A patent/CN106654486A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202068378U (en) * | 2011-05-18 | 2011-12-07 | 中国科学院上海天文台 | Ka-band mixer box |
| CN102509832A (en) * | 2011-10-13 | 2012-06-20 | 中国兵器工业第二〇六研究所 | Axial broadband waveguide coaxial converter |
| CN104980111A (en) * | 2015-05-29 | 2015-10-14 | 中国科学院空间科学与应用研究中心 | Terahertz frequency mixer with position-adjustable waveguide short circuit surface |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110386A (en) * | 2017-09-27 | 2018-06-01 | 波达通信设备（广州）有限公司 | Bidirectional output waveguide duplexer |
| CN108110386B (en) * | 2017-09-27 | 2019-12-13 | 波达通信设备（广州）有限公司 | Bidirectional output waveguide duplexer |
| CN116914391A (en) * | 2023-09-13 | 2023-10-20 | 电子科技大学 | Terahertz waveguide mixer suitable for two-dimensional array layout |
| CN116914391B (en) * | 2023-09-13 | 2023-11-28 | 电子科技大学 | Terahertz waveguide mixer suitable for two-dimensional array layout |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100401072C (en) | Inspection jig for radio frequency device ,and contact probe imcorporated in the jig | |
| US10509054B2 (en) | High/low temperature contactless radio frequency probes | |
| EP1134591B1 (en) | A system for measuring a radio frequency signal in a wireless station and a wiring board switch | |
| Topak et al. | Compact topside millimeter-wave waveguide-to-microstrip transitions | |
| CN203117381U (en) | Testing device for radio frequency integrated circuit chip | |
| CN106654486A (en) | Waveguide circuit breaker for terahertz mixer | |
| US20010024117A1 (en) | Method and apparatus for measuring harmonic load-pull for frequency multiplication | |
| CN106992798B (en) | Passive intermodulation test method based on slot waveguide near-field coupling | |
| Rao et al. | A low-profile dual-band dual-polarized quasi-endfire phased array for mmWave 5G smartphones | |
| CN109061319A (en) | A kind of measuring electromagnetic parameters method based on rectangular cavity | |
| CN104980111B (en) | A kind of Terahertz frequency mixer with the adjustable waveguide short face in position | |
| Klein et al. | Verification and demonstration up to 67 GHz of an on-chip antenna pattern measurement setup | |
| Towler et al. | Development and test of high resolution cavity BPMS for the CLIC main beam linac | |
| CN107942276A (en) | A kind of waveguide calibrating device and method for calibration vector Network Analyzer | |
| Cuenca et al. | Low-loss mm-wave transition from on-chip microstrip to rectangular waveguide | |
| CN109884412B (en) | Ultra-wideband electric field probe adopting U-shaped structure | |
| CN206789668U (en) | A kind of phase shifter and antenna with radio frequency connector | |
| CN206209097U (en) | A kind of Doppler radar front end microwave module frequency calibration instrument | |
| CN207732089U (en) | A kind of sleeve-dipole antenna | |
| CN210111018U (en) | Double-ridge waveguide and bare chip testing device | |
| Schulz et al. | A broadband circular waveguide-to-microstrip transition for an 80 GHz FMCW radar system | |
| CN207866904U (en) | A kind of device of adjustable RF circuit impedance | |
| EP1856701B1 (en) | Raster near field microscopy in the microwave and terahertz ranges with a signal processing device integrated in the measuring tip | |
| US6218845B1 (en) | Slotline calibration standard kit for network analyzer and calibration method using same | |
| JP6378387B1 (en) | Transmission line-waveguide converter and manufacturing method thereof |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |