CN106374841A - Novel W-waveband fundamental wave frequency mixer - Google Patents
Novel W-waveband fundamental wave frequency mixer Download PDFInfo
- Publication number
- CN106374841A CN106374841A CN201611078092.0A CN201611078092A CN106374841A CN 106374841 A CN106374841 A CN 106374841A CN 201611078092 A CN201611078092 A CN 201611078092A CN 106374841 A CN106374841 A CN 106374841A
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- Prior art keywords
- frequency
- wave band
- new
- base plate
- quartz base
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- 239000010453 quartz Substances 0.000 claims abstract description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 230000007704 transition Effects 0.000 claims abstract description 14
- 238000001914 filtration Methods 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 239000000758 substrate Substances 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000010355 oscillation Effects 0.000 abstract description 3
- 229910001218 Gallium arsenide Inorganic materials 0.000 abstract 1
- 239000000725 suspension Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/16—Multiple-frequency-changing
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Superheterodyne Receivers (AREA)
Abstract
The invention discloses a novel W-waveband fundamental wave frequency mixer. The frequency mixer comprises a quartz substrate, and the quartz substrate is internally provided with an RF transition waveguide, a Terahertz GaAs Schottky frequency-mixing diode pair in reverse parallel connection, a local oscillation transition waveguide and an intermediate-frequency filtering output circuit which are connected successively. The novel W-waveband fundamental wave frequency mixer is low in frequency conversion loss, wide in work bandwidth and intermediate-frequency output bandwidth, simple in technology and high in integrated degree.
Description
Technical field
The present invention relates to frequency mixer technical field is and in particular to a kind of new w wave band fundamental mixer.
Background technology
W wave band is important window frequency in millimeter wave, and the transmit-receive technology research of this wave band is in current Millimeter Wave Applications
Heat subject.Because its carrier frequency is higher, w wave band can support bigger bandwidth and the transfer rate of Geng Gao.Because air
Loss is little, and w band signal can carry out long-distance transmissions.Numerous applications of w wave band be unable to do without the reception processing of this frequency range.
Frequency mixer is one of core component in communication receiving system, and high frequency CF signal frequency transformation is become intermediate frequency can locate
Reason signal.The quality of mixer performance directly affects the overall performance of reception system, has important Research Significance, mesh
The integrated w wave band frequency mixers of mixed form such as front application fin line, suspension micro-strip have been developed rapidly.Its knot of existing mixing
Structure its signal transmission attenuation of complexity is big.
Content of the invention
The present invention provides a kind of new w wave band fundamental mixer to solve above-mentioned technical problem.
The present invention is achieved through the following technical solutions:
New w wave band fundamental mixer, including quartz base plate, is provided with the radio frequency mistake being sequentially connected in described quartz base plate
The Terahertz gaas Schottky mixer diode crossing waveguide, reverse parallel connection is to, local oscillator transition waceguide and intermediate frequency filtering output circuit.
The mixting circuit of this programme adopts quartz as substrate, compared with 5880 conventional substrates, more steady in w frequency range dielectric constant
Fixed, loss is less；Using quartz base plate, machining accuracy is higher compared with 5880 substrates；Mixing device adopts two reverse parallel connections too
Hertz gaas Schottky mixer diode, in fundamental wave mixing work process, radio-frequency voltage direction equal in magnitude phase on diode
With local oscillator voltage swing equal direction is contrary, and it is even that this circuit structure can offset radiofrequency signal and local oscillator in output total current
The electric current that subharmonic produces, the AM noise that suppression local vibration source introduces, improve mixer noiser coefficient；Radiofrequency signal passes through fin line
Input, signal electric field is mutually orthogonal with the local oscillation signal electric field being inputted by suspended mictrostrip, prevention at radio-frequency port and local oscillator port energy
Completely RF local oscillator isolation is obtained in very wide frequency range；It is integrated with radio frequency transition waceguide, reversely in quartz base plate
Terahertz gaas Schottky mixer diode in parallel is to, local oscillator transition waceguide and intermediate frequency filtering output circuit, radio frequency little bellow
Lead the circuit form adopting reactive filter and local oscillator transition waceguide between, not only reduce the loss of signal and local oscillator simultaneously
Reduce design difficulty, using the mixing of singly balanced formula, counteract radiofrequency signal and local oscillator even-order harmonic in output total current and produce
Electric current it is suppressed that local vibration source introduce AM noise, improve mixer noiser coefficient, and decrease the length of quartz base plate
Degree, reduces design difficulty.Medium frequency output end mouth and RF local oscillator are excessively integrated on one piece of quartz base plate, processing technique letter
Single, integrated level is high, and the presence due to intermediate-frequency filter, reduces local oscillator and radio frequency to the leakage of intermediate frequency.
Preferably, described intermediate frequency filtering output circuit is connected on sma head.
Preferably, the thickness of described quartz base plate is 50 microns.
Preferably, described radio frequency transition waceguide includes fin line micro-strip.
Further, the thickness of described fin line micro-strip is 3 microns.
Preferably, the anode dimension of Terahertz gaas Schottky mixer diode is 1.4 microns, 5 ohm of series resistance,
Junction capacity is 4ff, can achieve the fundamental mixer of low conversion loss.
The present invention compared with prior art, has such advantages as and beneficial effect:
1st, using quartz as substrate, more stable in w frequency range dielectric constant, loss is less for the present invention；Machining accuracy is more
High.
2nd, adopt the circuit form of reactive filter between radio frequency transition waceguide of the present invention and local oscillator transition waceguide, not only reduce
The loss of signal and local oscillator reduces design difficulty simultaneously, using the mixing of singly balanced formula, counteracts in output total current
The electric current of radiofrequency signal and the generation of local oscillator even-order harmonic, it is suppressed that the AM noise of local vibration source introducing, improves mixer noiser
Coefficient, and decrease the length of quartz base plate, reduce design difficulty.
3rd, the medium frequency output end mouth of the present invention and RF local oscillator are excessively integrated on one piece of quartz base plate, processing technique letter
Single, integrated level is high, and the presence due to intermediate-frequency filter, reduces local oscillator and radio frequency to the leakage of intermediate frequency.
Brief description
Accompanying drawing described herein is used for providing the embodiment of the present invention is further understood, and constitutes of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is present configuration schematic diagram.
Labelling and corresponding parts title in accompanying drawing:
1st, quartz base plate, 2, radio frequency transition waceguide, 3, Terahertz gaas Schottky mixer diode pair, 4, local oscillator little bellow
Lead, 5, intermediate frequency filtering output circuit.
Specific embodiment
For making the object, technical solutions and advantages of the present invention become more apparent, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and the exemplary embodiment of the present invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment
A kind of new w wave band fundamental mixer as shown in Figure 1, including quartz base plate 1, setting in described quartz base plate 1
The Terahertz gaas Schottky mixer diode having the radio frequency transition waceguide 2 being sequentially connected, reverse parallel connection is to 3, local oscillator little bellow
Lead 4 and intermediate frequency filtering output circuit 5.Using the frequency mixer of this structure, its conversion loss is low, bandwidth of operation and intermediate frequency output carry
Wide, process is simple, integrated level are high.
Specifically, radio frequency and local oscillation signal are defeated from suspension micro-strip port and fin line port by standard waveguide wr10 respectively
Enter, two Terahertz gaas Schottky mixer diodes are arranged between fin line and suspended mictrostrip in the form of reverse parallel connection,
Constitute fin line suspended mictrostrip balanced structure；Intermediate-freuqncy signal is drawn by sma joint, and the input of w band signal is put down using fin line micro-strip
Face form, this circuit form has handling ease, is easy to the advantages such as device is integrated.Intermediate frequency output current in the present invention is single
The twice of individual pipe, the more single diode of operating dynamic range is increased.
In mixting circuit, local oscillator input signals are excessively coupled in suspension micro-strip by the probe of waveguide to suspension micro-strip, warp
Cross suspended mictrostrip to be fifty-fifty added on two Terahertz gaas Schottky mixer diodes, radiofrequency signal passes through waveguide fin line mistake
Fifty-fifty it is coupled on diode after degree conversion；Intermediate-freuqncy signal is drawn by microstrip line high low-impedance line low pass filter.Fin line and
Suspended mictrostrip constitutes 180 ° of mixing knots, and it is identical to be added to local oscillator voltage inversion on two diodes, amplitude, RF signal voltage
Homophase, amplitude are identical.IF output signal, after mid-frequency low-pass filtering output circuit, exports to the sma head of standard, wherein sma
Head realizes good wire contacts with quartzy circuit by conducting resinl.
Quartz base plate of the present invention, substrate thickness be 50 microns, the fin line on quartzy circuit and suspension micro-strip
Line is constituted for Aurum metallicum, and the thickness of metal is 3 microns.
Higher cutoff frequency Terahertz gaas Schottky mixer diode anode dimension of the present invention is 1.4 microns,
5 ohm of series resistance, junction capacity is 4ff, can achieve the fundamental mixer of low conversion loss using this diode.
This fundamental wave mixing circuit structure has the advantages of small volume, compact conformation, good stability.Proposed by the invention is mixed
Frequency circuit form greatly simplify circuit, has widened its operating frequency range.Its circuit work frequency scope is whole w wave band,
Conversion loss representative value is 6db, and intermediate frequency 3db carries a width of 20ghz.
Above-described specific embodiment, has been carried out to the purpose of the present invention, technical scheme and beneficial effect further
Describe in detail, be should be understood that the specific embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, all any modification, equivalent substitution and improvement within the spirit and principles in the present invention, done etc., all should comprise
Within protection scope of the present invention.
Claims (6)
1. new w wave band fundamental mixer it is characterised in that: include quartz base plate (1), be provided with described quartz base plate (1)
The radio frequency transition waceguide (2) that is sequentially connected, the Terahertz gaas Schottky mixer diode of reverse parallel connection are to (3), local oscillator transition
Waveguide (4) and intermediate frequency filtering output circuit (5).
2. new w wave band fundamental mixer according to claim 1 it is characterised in that: described intermediate frequency filtering output circuit
(5) it is connected on sma head.
3. new w wave band fundamental mixer according to claim 1 it is characterised in that: the thickness of described quartz base plate is
50 microns.
4. new w wave band fundamental mixer according to claim 1 it is characterised in that: described radio frequency transition waceguide (2) bag
Include fin line micro-strip.
5. new w wave band fundamental mixer according to claim 4 it is characterised in that: the thickness of described fin line micro-strip be 3
Micron.
6. new w wave band fundamental mixer according to claim 1 it is characterised in that: Terahertz gaas Schottky mixing
The anode dimension of diode is 1.4 microns, 5 ohm of series resistance, and junction capacity is 4ff.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611078092.0A CN106374841A (en) | 2016-11-29 | 2016-11-29 | Novel W-waveband fundamental wave frequency mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611078092.0A CN106374841A (en) | 2016-11-29 | 2016-11-29 | Novel W-waveband fundamental wave frequency mixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106374841A true CN106374841A (en) | 2017-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611078092.0A Pending CN106374841A (en) | 2016-11-29 | 2016-11-29 | Novel W-waveband fundamental wave frequency mixer |
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| CN (1) | CN106374841A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107196608A (en) * | 2017-05-27 | 2017-09-22 | 中国电子科技集团公司第四十研究所 | A kind of new integrated th harmonic mixer of Terahertz frequency range Band Monolithic Integrated |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102394568A (en) * | 2011-10-19 | 2012-03-28 | 电子科技大学 | W-band broadband mixer |
| CN105162421A (en) * | 2014-06-12 | 2015-12-16 | 电子科技大学 | Millimeter wave and terahertz sixteenth harmonic mixer based on avalanche diode |
| CN206559320U (en) * | 2016-11-29 | 2017-10-13 | 四川众为创通科技有限公司 | New W-waveband fundamental mixer |
-
2016
- 2016-11-29 CN CN201611078092.0A patent/CN106374841A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102394568A (en) * | 2011-10-19 | 2012-03-28 | 电子科技大学 | W-band broadband mixer |
| CN105162421A (en) * | 2014-06-12 | 2015-12-16 | 电子科技大学 | Millimeter wave and terahertz sixteenth harmonic mixer based on avalanche diode |
| CN206559320U (en) * | 2016-11-29 | 2017-10-13 | 四川众为创通科技有限公司 | New W-waveband fundamental mixer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107196608A (en) * | 2017-05-27 | 2017-09-22 | 中国电子科技集团公司第四十研究所 | A kind of new integrated th harmonic mixer of Terahertz frequency range Band Monolithic Integrated |
| CN107196608B (en) * | 2017-05-27 | 2020-08-07 | 中国电子科技集团公司第四十一研究所 | Novel terahertz frequency band broadband monolithic integration subharmonic mixer |
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Application publication date: 20170201 |