CN203368402U - Triple millimeter wave quadruple frequency multiplier - Google Patents
Triple millimeter wave quadruple frequency multiplier Download PDFInfo
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- CN203368402U CN203368402U CN 201320458442 CN201320458442U CN203368402U CN 203368402 U CN203368402 U CN 203368402U CN 201320458442 CN201320458442 CN 201320458442 CN 201320458442 U CN201320458442 U CN 201320458442U CN 203368402 U CN203368402 U CN 203368402U
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Abstract
The utility model provides a triple millimeter wave quadruple frequency multiplier comprising a ka wave band double frequency multiplier, a filtering amplification circuit and a triple millimeter wave double frequency multiplier in sequence from input to output. The ka wave band double frequency multiplier comprises a Marchand-structure Balun circuit and two Schottky diodes connected with the Marchand-structure Balun circuit, and the reverse side of the Marchand-structure Balun circuit is provided with a microstrip line with a 1/4 wavelength terminal open circuit. The triple millimeter wave double frequency multiplier comprises two Schottky diodes, one terminals of the Schottky diodes are connected with an impedance matching circuit, and the other terminals of the Schottky diodes employ fin-line structures to output. The triple millimeter wave quadruple frequency multiplier is advantaged by smaller structure and overall dimension, wider bandwidth, and better coupling degree, the effect of technology error to circuit performance is effectively reduced, low insertion loss transition of signals is achieved, and the low frequency transmission of an output port is effectively inhibited.
Description
Technical field
The utility model relates to microwave spread spectrum field, particularly relates to a kind of three millimeter wave quadruplers.
Background technology
Millimeter wave frequency source is the requisite critical components such as millimetre-wave attenuator, measuring system.At millimeter wave frequency band, because directly the oscillation source performance index are poor, therefore generally adopt the frequency multiplication mode to realize millimeter wave frequency source.Frequency of oscillation is selected the microwave frequency band of technology comparative maturity, can obtain the millimeter wave frequency source of good stability and the characteristic of making an uproar mutually by frequency multiplication.The millimeter wave frequency multiplier generally adopts diode balanced structure form, by selecting suitable diode, and designs the structures such as corresponding microstrip balun, fin line waveguide transition and realizes the millimeter wave double frequency function.The key technical indexes of millimeter wave frequency multiplier has power output, conversion loss, harmonic wave inhibition, phase noise etc.
Along with the development of millimeter-wave communication system, be military or all need aspect civilian reliable, be easy to the millimeter wave frequency source of making, the quality of high stable mm-wave signal source is to determine that the basis of millimeter-wave systems performance is with crucial.The millimeter wave frequency of oscillation stability of simple Solid Source output is poor, is difficult to the local vibration source as transceiver in communication or radar.In most occasions, must adopt the frequency multiplication mode to realize three millimeter wave frequency sources for this reason.The development of millimeter wave full frequency band signal source generator adopts the power amplification scheme of frequency multiplication more mostly.The advantage of this scheme is that signal source frequency precision and the existing modulation of signal can be guaranteed, and the phase noise deterioration is less, can reduce to a great extent cost of manufacture simultaneously.
The utility model content
The millimeter wave frequency multiplier is for changing the microwave device of signal frequency, because the direct oscillation source performance index of millimeter wave are poor, generally needs to adopt the frequency multiplication mode to realize millimeter wave frequency source.The utility model has been realized three millimeter wave quadruplers, and the signal of input signal 23 ~ 24GHz is passed through to two-stage two frequencys multiplication to 92 ~ 96GHz, then by fin line waveguide transition structure output.This quadrupler has adopted novel microstrip balun structure, adopts coplanar impedance to carry out the input impedance coupling of diode pair simultaneously, adopts fin line to carry out diode pair output impedance coupling, by the design of fin line transition line, is undertaken mating with output waveguide.This quadrupler can be widely used in three millimetre-wave radars, communication system etc.
The utility model adopts following technical scheme: a kind of three millimeter wave quadruplers, comprise successively ka wave band varactor doubler from being input to output, filter amplification circuit, three millimeter wave varactor doublers, described ka wave band varactor doubler comprises a Marchand structure balun circuit, the microstrip line that the front of described Marchand structure balun circuit is 1/4 a wavelength top short circuit and 1/2 wavelength top short circuit are converted into the microstrip line of two section 1/4 wavelength, the terminal of two microstrip lines connects respectively a Schottky diode, the microstrip line that the reverse side of Marchand structure balun circuit is 1/4 a wavelength terminal open circuit, described three millimeter wave varactor doublers comprise two Schottky diodes, and an end of Schottky diode connects impedance matching circuit, and the other end of Schottky diode adopts the fin line structure output.
In technique scheme, described Marchand structure balun circuit adopts suspended mictrostrip.
In technique scheme, described impedance matching circuit adopts high impedance line and co-planar waveguide to realize the input impedance coupling of two Schottky diodes.
In technique scheme, described fin line structure adopts the fin line transition line to realize two Schottky diode output balance frequencys multiplication.
In technique scheme, the width between described fin line transition line is adjustable, and described transition line type is to the cosine square gradual change.
The utility model has the advantage of:
The utility model has been realized the frequency multiplication of local oscillator link input signal 23 ~ 24GHz to three millimeter wave frequency band 92 ~ 96GHz, for three millimeter wave transceiving assemblies provide reliable and stable local frequency;
Structural entity size after the utility model improves is less, and bandwidth is wider, and the degree of coupling is better, and has effectively reduced the impact of fabrication error on circuit performance;
This practical information person second level frequency multiplier circuit comprises several parts such as co-planar waveguide coupling, fin line coupling, the transition of fin line transition line, has realized the filter with low insertion loss transition of signal, and the transmission that has suppressed the output port Frequency is arranged;
Whole quadrupler, by the input of 2.92mm series coaxial connector, by the output of WR10 waveguiding structure, has been realized the frequency translation from the K wave band to the W wave band, and two-stage adopts respectively different coupled modes, farthest reduces conversion loss and loss.
The accompanying drawing explanation
The utility model will illustrate by embodiment and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is theory diagram of the present utility model;
Fig. 2 is the schematic diagram of the first order two frequencys multiplication in the utility model;
Fig. 3 is the schematic diagram of the second level two frequencys multiplication in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1, three millimeter wave quadruplers adopt two-stage frequency multiplication mode to realize, input signal is the K band signal, successively through the first order two frequencys multiplication, filter amplification circuit, the last output of the second level two frequencys multiplication three millimeter wave frequency band signals
As shown in Figure 2, the first order two frequencys multiplication are actually a ka wave band varactor doubler, adopt the mode of balance diode to realize.The joint of input 23 ~ 24GHz signal adopts 2.92mm series adapter, is output as micro-band, and baseplate material adopts Rogers5880, and dielectric constant is 2.2, and thickness is 0.127mm.Adopt suspended mictrostrip to realize improved Marchand structure Ba Lun, diode adopts Schottky diode, the band line that the reverse side circuit of its mini-bus human relations is 1/4 wavelength terminal open circuit, a band line that is output as 1/4 wavelength top short circuit of front circuit, another is output as the band line that 1/2 wavelength is converted into two section 1/4 wavelength, 1/2 wavelength top short circuit, the suspended mictrostrip short circuit realizes by the ground connection via hole.
Filter amplification circuit in the utility model, filter is band pass filter, and the high order harmonic component that frequency multiplication produces is for the first time suppressed, and by its second harmonic, adopts the mode of microstrip filter to realize, and its centre frequency is 47GHz, and bandwidth is 2GHz; Amplifier chip is selected AMMC5040, carries out the signal power amplification.The AMMC5040 working frequency of chip is 20 ~ 45GHz, and gain can reach 25dB.The substrate of filter and amplifier is selected Rogers5880, and dielectric constant is 2.2, and thickness is 0.127mm.
As shown in Figure 3, the frequency multiplier that second level frequency multiplier is three millimeter wave frequency bands, adopt the mode of balance diode to realize.The signal of 46 ~ 48GHz is inputted by microstrip line, and out splice going splice is the WR10 waveguide.Substrate adopts Rogers5880, and dielectric constant is 2.2, and thickness is 0.127mm, and diode adopts Schottky diode.With respect to microstrip line, fin line has lower loss, therefore adopt fin line to realize the balance frequency multiplication of diode.Input matching adopts high impedance line and co-planar waveguide to realize.Carry out by regulating the fin line gap width output impedance that matched diodes is right.The transition line type selecting of fin line is to the cosine square gradual change, and this transition line has level and smooth impedance transformation characteristic, can the fine transition realized between waveguide and fin line.
Disclosed all features in this specification, except mutually exclusive feature, all can combine by any way.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (5)
1. a millimeter wave quadrupler, comprise ka wave band varactor doubler, filter amplification circuit, three millimeter wave varactor doublers successively from being input to output, it is characterized by:
Described ka wave band varactor doubler comprises a Marchand structure balun circuit, the microstrip line that the front of described Marchand structure balun circuit is 1/4 a wavelength top short circuit and 1/2 wavelength top short circuit are converted into the microstrip line of two section 1/4 wavelength, the terminal of two microstrip lines connects respectively a Schottky diode, the microstrip line that the reverse side of Marchand structure balun circuit is 1/4 a wavelength terminal open circuit;
Described three millimeter wave varactor doublers comprise two Schottky diodes, and an end of Schottky diode connects impedance matching circuit, and the other end of Schottky diode adopts the fin line structure output.
2. a kind of three millimeter wave quadruplers according to claim 1, is characterized by described Marchand structure balun circuit and adopt suspended mictrostrip.
3. a kind of three millimeter wave quadruplers according to claim 1, is characterized by described impedance matching circuit and adopt high impedance line and co-planar waveguide to realize the input impedance coupling of two Schottky diodes.
4. a kind of three millimeter wave quadruplers according to claim 1, is characterized by described fin line structure and adopt the fin line transition line to realize two Schottky diode output balance frequencys multiplication.
5. a kind of three millimeter wave quadruplers according to claim 4, the width it is characterized by between described fin line transition line is adjustable, described transition line type is to the cosine square gradual change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320458442 CN203368402U (en) | 2013-07-30 | 2013-07-30 | Triple millimeter wave quadruple frequency multiplier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320458442 CN203368402U (en) | 2013-07-30 | 2013-07-30 | Triple millimeter wave quadruple frequency multiplier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203368402U true CN203368402U (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320458442 Expired - Lifetime CN203368402U (en) | 2013-07-30 | 2013-07-30 | Triple millimeter wave quadruple frequency multiplier |
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| CN (1) | CN203368402U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112018480A (en) * | 2020-08-26 | 2020-12-01 | 中电科仪器仪表有限公司 | Integrated solid-state signal external spread spectrum device and solid-state signal generator |
| CN114844468A (en) * | 2022-05-12 | 2022-08-02 | 中国工程物理研究院电子工程研究所 | Novel balanced Schottky quadruple frequency structure and using method thereof |
-
2013
- 2013-07-30 CN CN 201320458442 patent/CN203368402U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112018480A (en) * | 2020-08-26 | 2020-12-01 | 中电科仪器仪表有限公司 | Integrated solid-state signal external spread spectrum device and solid-state signal generator |
| CN112018480B (en) * | 2020-08-26 | 2022-03-11 | 中电科思仪科技股份有限公司 | Integrated solid-state signal external spread spectrum device and solid-state signal generator |
| CN114844468A (en) * | 2022-05-12 | 2022-08-02 | 中国工程物理研究院电子工程研究所 | Novel balanced Schottky quadruple frequency structure and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |