CN107395124A - A kind of Terahertz balanced type varactor doubler - Google Patents
A kind of Terahertz balanced type varactor doubler Download PDFInfo
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- CN107395124A CN107395124A CN201710727427.5A CN201710727427A CN107395124A CN 107395124 A CN107395124 A CN 107395124A CN 201710727427 A CN201710727427 A CN 201710727427A CN 107395124 A CN107395124 A CN 107395124A
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- 239000000523 sample Substances 0.000 claims abstract description 19
- 230000033228 biological regulation Effects 0.000 claims abstract description 11
- 230000009467 reduction Effects 0.000 claims abstract description 4
- 239000000758 substrate Substances 0.000 claims description 7
- 239000010453 quartz Substances 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 claims description 3
- 230000005684 electric field Effects 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009022 nonlinear effect Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B19/00—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source
- H03B19/06—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source by means of discharge device or semiconductor device with more than two electrodes
- H03B19/14—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source by means of discharge device or semiconductor device with more than two electrodes by means of a semiconductor device
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Abstract
The present invention relates to a kind of Terahertz balanced type varactor doubler, belongs to Terahertz frequency multiplier technical field.Including waveguide input, waveguide, diode, output matching structure, export probe, waveguide output end, offset side low pass filter and direct-flow voltage regulation source, the waveguide input is that width edge length is equal and the two level of narrow edge lengths reduction step by step subtracts high waveguide, stretched into by microstrip probe in waveguide, the diode using four diode chip differential concatenations into chip, its chip both ends is connected with the inwall of waveguide, the diode, output matching structure, export probe, offset side low pass filter passes sequentially through microstrip line connection, output probe is connected with waveguide output end, the direct-flow voltage regulation source is connected with offset side low pass filter；The present invention uses multiple frequency multiplication structures of diode balanced type two, can directly suppress odd harmonic, can bear bigger input power so as to improve power output, and low in energy consumption.
Description
Technical field
The present invention relates to Terahertz frequency multiplier technical field, more particularly to a kind of Terahertz balanced type varactor doubler.
Background technology
Directly vibration and frequency multiplication can be divided into according to signal producing method to obtain THz wave based on the method for electronics
Two major classes, solid-state devices and the major class of electron tube two can be divided into according to core devices classification.Obtained based on electron tube
The remarkable advantage of THz wave is to be readily available the higher THz wave of power, and deficiency is that its power consumption is higher, and volume is larger.
The method of THz wave is obtained based on solid electronic device can be further divided into based on two kinds of transistor and diode, such as silicon substrate again
CMOS, SiGe heterojunction bipolar transistor（Si Ge HBT）And GaAs Schottky diode etc..Pass through solid-state electronic device
The characteristics of part acquisition THz wave, is its small volume, light weight, is easy to integrate.But generally more difficult acquisition more than 1THz
THz wave, the and because restriction of device resistance and fuel factor, its power output is relatively low, can use power combing or
Person's power amplifier obtains higher power output.
Frequency multiplier can use single or multiple nonlinear devices, and the sharpest edges using the varactor doubler of single diode are
Structure is relatively easy, and its shortcoming is also fairly obvious：First, balance structure can not be formed by the circuit of multiple diodes, it is impossible to
Simple and direct suppression odd harmonic；Two are limited to the power bearing ability of single diode, it is impossible to reach very high power output, move
State scope is little.
The content of the invention
The problem of for shortcomings and deficiencies in the prior art, the present invention propose a kind of Terahertz balanced type varactor doubler,
Using multiple frequency multiplication structures of diode balanced type two, can directly suppress odd harmonic, can bear bigger input power so as to
Power output is improved, and it is low in energy consumption.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of Terahertz balanced type varactor doubler, including waveguide input, waveguide, diode, output matching structure, output spy
Pin, waveguide output end, offset side low pass filter and direct-flow voltage regulation source, the waveguide input are that width edge length is equal and narrow side
The two level of length reduction step by step subtracts high waveguide, is stretched into by microstrip probe in waveguide, the diode uses four diode pipes
Core differential concatenation into chip, its chip both ends is connected with the inwall of waveguide, and the diode, output matching structure, output are visited
Pin, offset side low pass filter pass sequentially through microstrip line connection, and output probe is connected with waveguide output end, the direct-flow voltage regulation source
It is connected with offset side low pass filter.
Further, the narrow side center of the waveguide input is provided with quartz substrate, and its quartz substrate is parallel to electric field
It is square.
Further, the diode is varactor, using Schottky barrier diode, diode
The anode strap of tube core has air bridge structure.
Further, the diode pair output end carries out output matching using four sections of matchings.
Further, the output probe is micro-strip-waveguide transition probe.
Further, the bias voltage of the direct-flow voltage regulation source is -2.6V.
The present invention has the advantages that：The present invention uses the frequency multiplication structure of balanced type two, and it is humorous can directly to suppress odd
Ripple, while multiple diodes can bear bigger input power so as to improve power output；Low pass is devised at direct current biasing end
Wave filter, it can prevent fundamental wave and second harmonic from leaking, so as to reduce power consumption.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention；
Fig. 2 is waveguide input end structure schematic diagram of the present invention；
Fig. 3 is the circuit layout schematic diagram of output matching structure of the present invention.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention.In addition, it is to be understood that after the content of the invention lectured has been read, people in the art
Member can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited
Scope.
As illustrated, a kind of Terahertz balanced type varactor doubler, including waveguide input 1, waveguide 2, diode 3, output
Mating structure 4, output probe 5, waveguide output end 6, offset side low pass filter 7 and direct-flow voltage regulation source 8, the waveguide input
1 is that width edge length is equal and the two level of narrow edge lengths reduction step by step subtracts high waveguide, is stretched into by microstrip probe 21 in waveguide 2, institute
State diode 3 using four diode chip differential concatenations into chip, its chip both ends is connected with the inwall 11 of waveguide 2, institute
State diode 3, output matching structure 4, output probe 5, offset side low pass filter 7 and pass sequentially through microstrip line connection, output is visited
Pin 5 is connected with waveguide output end 6, and the direct-flow voltage regulation source 8 is connected with offset side low pass filter 7.
The narrow side center of the waveguide input 1 is provided with quartz substrate 31, and its quartz substrate is square parallel to electric field.
Specifically, the input signal of waveguide input 1, in the waveguiding mode（TE10）The chip of diode 3 is directly coupled to, is passed through
The nonlinear effect of diode 3, caused even-order harmonic is mainly transmitted with quasi- TEM moulds along microstrip line, by micro- after output matching
Band-waveguide transition probe exports.
The diode 3 is varactor, using the AS2/4G2/6P6 of Teratech companies., be a kind of metal-
Semiconductor contact barrier diode, whole chip is four tube cores of differential concatenation, and the anode of each tube core band is free
Air bridge structure is to reduce parasitic capacitance.Series resistance is 2.9 Ω, and cut-off frequency is about 5.6 THz, and ideal factor N is
1.2, breakdown reverse voltage is more than -5V.Diode 3 carries out output matching to output end using four sections of matchings.
During the optimal conversion loss 4.6dB of the present invention, optimal input and output impedance value is 76+j*95 and 66+j*78,
The bias voltage of direct-flow voltage regulation source is -2.6V.
Waveguide input 1 of the present invention devises two sections and subtracts high disposal, it is therefore an objective to improves waveguide signal and is transferred to microstrip line
Bandwidth, and suppress at the chip of diode 3 due to higher mode caused by discontinuity（Minimum higher mode is TM11）.In addition,
Subtracting height also enables diode 3 to be directly connected with inwall 11, there is provided good direct current；Micro-strip-waveguide transition probe
Structure not only acts as the conversion transitional function of energy, and is connected with direct current biasing low pass filter 7, should be noted during design
The isolation of each port.Equally, waveguide output end have also been made one section and subtract high disposal；It is strange without considering as balanced type varactor doubler
The idle loop problem of subharmonic, its general structure are relatively easy；Employ four tube cores of diode 3, it is possible to increase frequency multiplier
Dynamic range and power output capacity.
Claims (6)
- A kind of 1. Terahertz balanced type varactor doubler, it is characterised in that：Including waveguide input, waveguide, diode, output matching Structure, output probe, waveguide output end, offset side low pass filter and direct-flow voltage regulation source, the waveguide input are grown for broadside The two level for spending the reduction step by step of equal and narrow edge lengths subtracts high waveguide, is stretched into by microstrip probe in waveguide, and the diode uses Four diode chip differential concatenations into chip, its chip both ends is connected with the inwall of waveguide, the diode, output matching Structure, output probe, offset side low pass filter pass sequentially through microstrip line connection, and output probe is connected with waveguide output end, institute Direct-flow voltage regulation source is stated with offset side low pass filter to be connected.
- A kind of 2. Terahertz balanced type varactor doubler according to claim 1, it is characterised in that：The waveguide input Narrow side center is provided with quartz substrate, and its quartz substrate is square parallel to electric field.
- A kind of 3. Terahertz balanced type varactor doubler according to claim 1, it is characterised in that：The diode is transfiguration Diode, using Schottky barrier diode, the anode strap of diode chip has air bridge structure.
- A kind of 4. Terahertz balanced type varactor doubler according to claim 1, it is characterised in that：The diode pair output End carries out output matching using four sections of matchings.
- A kind of 5. Terahertz balanced type varactor doubler according to claim 1, it is characterised in that：The output probe is micro- Band-waveguide transition probe.
- A kind of 6. Terahertz balanced type varactor doubler according to claim 1, it is characterised in that：The direct-flow voltage regulation source Bias voltage is -2.6V.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710727427.5A CN107395124A (en) | 2017-08-23 | 2017-08-23 | A kind of Terahertz balanced type varactor doubler |
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| CN201710727427.5A CN107395124A (en) | 2017-08-23 | 2017-08-23 | A kind of Terahertz balanced type varactor doubler |
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| CN107395124A true CN107395124A (en) | 2017-11-24 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107483018A (en) * | 2017-07-10 | 2017-12-15 | 中国电子科技集团公司第十三研究所 | Terahertz even balanced type frequency multiplier |
| CN110739913A (en) * | 2019-06-13 | 2020-01-31 | 中国工程物理研究院电子工程研究所 | ultra wide band schottky frequency doubler structure of second harmonic enhancement mode |
| CN111384897A (en) * | 2020-02-21 | 2020-07-07 | 东南大学 | Terahertz two-stage cascade balanced type frequency-nine multiplier circuit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104600403A (en) * | 2015-01-08 | 2015-05-06 | 电子科技大学 | Terahertz frequency tripler based on coplanar waveguide transmission line |
| CN104617881A (en) * | 2015-01-09 | 2015-05-13 | 电子科技大学 | Terahertz frequency multiplier with multi-level lower waveguide matching structure |
| CN104617880A (en) * | 2015-01-08 | 2015-05-13 | 电子科技大学 | Terahertz frequency doubler using coplanar transmission line |
| CN104993795A (en) * | 2015-07-31 | 2015-10-21 | 中国电子科技集团公司第十三研究所 | Frequency self-adaptive W-band signal source assembly |
| CN207184425U (en) * | 2017-08-23 | 2018-04-03 | 池州睿成微电子有限公司 | A kind of Terahertz balanced type varactor doubler |
-
2017
- 2017-08-23 CN CN201710727427.5A patent/CN107395124A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104600403A (en) * | 2015-01-08 | 2015-05-06 | 电子科技大学 | Terahertz frequency tripler based on coplanar waveguide transmission line |
| CN104617880A (en) * | 2015-01-08 | 2015-05-13 | 电子科技大学 | Terahertz frequency doubler using coplanar transmission line |
| CN104617881A (en) * | 2015-01-09 | 2015-05-13 | 电子科技大学 | Terahertz frequency multiplier with multi-level lower waveguide matching structure |
| CN104993795A (en) * | 2015-07-31 | 2015-10-21 | 中国电子科技集团公司第十三研究所 | Frequency self-adaptive W-band signal source assembly |
| CN207184425U (en) * | 2017-08-23 | 2018-04-03 | 池州睿成微电子有限公司 | A kind of Terahertz balanced type varactor doubler |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107483018A (en) * | 2017-07-10 | 2017-12-15 | 中国电子科技集团公司第十三研究所 | Terahertz even balanced type frequency multiplier |
| CN110739913A (en) * | 2019-06-13 | 2020-01-31 | 中国工程物理研究院电子工程研究所 | ultra wide band schottky frequency doubler structure of second harmonic enhancement mode |
| CN110739913B (en) * | 2019-06-13 | 2023-05-09 | 中国工程物理研究院电子工程研究所 | Second harmonic enhancement type ultra-wideband Schottky frequency doubler structure |
| CN111384897A (en) * | 2020-02-21 | 2020-07-07 | 东南大学 | Terahertz two-stage cascade balanced type frequency-nine multiplier circuit |
| CN111384897B (en) * | 2020-02-21 | 2023-01-31 | 东南大学 | Terahertz two-stage cascade balanced type frequency-nine multiplier circuit |
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