CN207869096U - A kind of millimeter wave logarithmic detector device - Google Patents
A kind of millimeter wave logarithmic detector device Download PDFInfo
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- CN207869096U CN207869096U CN201820215690.6U CN201820215690U CN207869096U CN 207869096 U CN207869096 U CN 207869096U CN 201820215690 U CN201820215690 U CN 201820215690U CN 207869096 U CN207869096 U CN 207869096U
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- millimeter wave
- logarithmic detector
- module
- frequency
- amplifier
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Abstract
The utility model discloses a kind of millimeter wave logarithmic detector devices, which is characterized in that including local oscillator module, millimeter wave input module, logarithmic detector module and frequency mixer, the local oscillator module and millimeter wave input module are connected with frequency mixer respectively in parallel.Compared with prior art, the utility model is suitable for the millimeter wave logarithmic detector module of large-scale production, which can be very good use in millimeter wave down conversion system and millimeter wave receiving front-end, there is good compatibility.Using low noise amplifier, switch filter, attenuation controller and amplifier II etc. as submodule, multiple submodule is connected using parallel way with the same local oscillation circuit the utility model, improves the integrated level of percentage of circuit utilization and integral module.
Description
Technical field
The utility model is related to a kind of millimeter wave logarithmic detector modules, belong to millimeter-wave technology field.
Background technology
Millimeter wave logarithmic detector is the key function in millimeter-wave systems, is the effective of reflection millimeter-wave signal quality condition
Means can be widely applied in the technical fields such as millimeter wave communication, radar and telemetering, control.Millimeter wave logarithmic detector signal is wanted
Asking has the characteristics that good sensitivity, transient behavior, high reliability.There are some millimeter wave detection modules to occur still simultaneously at present
Various requirement cannot be met and application flexibility is low, it is difficult to debug, be not suitable for and Produce on a large scale, limiting factor compared with
It is more.
Utility model content
This practical purpose is to provide a kind of millimeter wave logarithmic detector device being suitable for large-scale production, the detector arrangement
Use be can be very good in millimeter wave down conversion system and millimeter wave receiving front-end, there is good compatibility.
To achieve the above object, the utility model provides the following technical solutions：
A kind of millimeter wave logarithmic detector device comprising local oscillator module, millimeter wave input module, logarithmic detector module and mixed
Frequency device, the local oscillator module and millimeter wave input module are connected with frequency mixer respectively in parallel, the logarithmic detector
Module receives the signal that sends out of frequency mixer and output signal, the local oscillator module include successively PLL phase-locked loop modules, frequency multiplier,
Filter and amplifier I, the millimeter wave input module include low noise amplifier, switch filter, attenuation controller successively
With amplifier II, the logarithmic detector module includes intermediate-frequency filter, intermediate frequency amplifier, logarithmic detector and operation amplifier successively
Device.
The PLL phase-locked loop modules receive reference signal, and the reference signal is 100MHz.
Further, the low noise amplifier receives radio-frequency input signals, and the radio-frequency input signals covers 26.5GHz
~40GHz.
The log slope of logarithmic signal can be adjusted flexibly in logarithmic detector signal in the utility model, rectified signal is made an uproar
Sound substrate level, output impedance are adjustable.
The utility model has the sensitivity better than -60dBm in 26.5GHz~40GHz frequency ranges, dynamic better than 45dBc
State range.
Advantageous effect：Compared with prior art, the utility model is suitable for the millimeter wave logarithmic detector mould of large-scale production
Block, the detector arrangement can be very good use in millimeter wave down conversion system and millimeter wave receiving front-end, there is good compatibility
Property.The utility model is multiple using low noise amplifier, switch filter, attenuation controller and amplifier II etc. as submodule
Submodule is connected using parallel way with the same local oscillation circuit, and the integrated level of percentage of circuit utilization and integral module is improved.
Description of the drawings
Attached drawing is used to provide a further understanding of the present invention, and a part for constitution instruction, with this practicality
Novel embodiment for explaining the utility model, does not constitute limitations of the present invention together.
In the accompanying drawings：
Fig. 1 is the structural schematic diagram of the utility model；
Figure label：1, PLL phase-locked loop modules, 2, frequency multiplier, 3, filter, 4, amplifier I, 5, low noise amplifier,
6, switch filter, 7, attenuation controller, 8, amplifier II, 9, intermediate-frequency filter, 10, intermediate frequency amplifier, 11, logarithmic detector
Device, 12, operational amplifier, 13, frequency mixer.
Specific implementation mode
The preferred embodiment of the utility model is illustrated below in conjunction with attached drawing, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
Millimeter-wave signal frequency range in the utility model covers 26.5GHz~40GHz, and local oscillator reference signal frequency is
100MHz uses the logarithmic detector chip for being mixed chip, cavity body filter and ADI of 13 institute of Chinese electric section.
As shown in Figure 1, a kind of millimeter wave logarithmic detector device comprising local oscillator module, millimeter wave input module, logarithm inspection
Wave module and frequency mixer 13, local oscillator module and millimeter wave input module are connected with frequency mixer 13 respectively in parallel, right
Number detection module receives the signal that sends out of frequency mixer 13 and output signal, local oscillator module include successively PLL phase-locked loop modules 1, times
Frequency device 2, filter 3 and amplifier I 4, millimeter wave input module include low noise amplifier 5, switch filter 6, decaying successively
Controller 7 and amplifier II 8, logarithmic detector module include intermediate-frequency filter 9, intermediate frequency amplifier 10, logarithmic detector 11 successively
With operational amplifier 12.
Local oscillator reference signal is provided by 100MHz crystal oscillators, by PLL phase-locked loop modules 1, frequency multiplier 2, filter 3 and amplification
Local oscillation signal is exported after device I 4（Such as the local oscillation signal that frequency is 24GHz）, local oscillation signal input mixer 13.
The radiofrequency signal obtained by antenna reception or other modes（Cover 26.5GHz~40GHz）Amplify by low noise
Also input mixer 13 after device 5, switch filter 6, attenuation controller 7 and amplifier II 8, and be mixed with local oscillation signal,
The intermediate-freuqncy signal of a centimeter wave is generated, the intermediate-freuqncy signal is by intermediate-frequency filter 9, intermediate frequency amplifier 10, logarithmic detector 11
With output logarithmic detector signal after operational amplifier 12.
The log slope of logarithmic signal can be adjusted flexibly in logarithmic detector signal in the utility model, rectified signal is made an uproar
Sound substrate level, output impedance are adjustable.
The utility model has the sensitivity better than -60dBm in 26.5GHz~40GHz frequency ranges, dynamic better than 45dBc
State range.
Claims (3)
1. a kind of millimeter wave logarithmic detector device, which is characterized in that including local oscillator module, millimeter wave input module, logarithmic detector
Module and frequency mixer, the local oscillator module and millimeter wave input module are connected with frequency mixer respectively in parallel, described
Logarithmic detector module receives the signal that sends out of frequency mixer and output signal, the local oscillator module include successively PLL phase-locked loop modules,
Frequency multiplier, filter and amplifier I, the millimeter wave input module include low noise amplifier, switch filter, decaying successively
Controller and amplifier II, the logarithmic detector module include intermediate-frequency filter, intermediate frequency amplifier, logarithmic detector and fortune successively
Calculate amplifier.
2. a kind of millimeter wave logarithmic detector device according to claim 1, it is characterised in that：The PLL phase-locked loop modules
Reference signal is received, the reference signal is 100MHz.
3. a kind of millimeter wave logarithmic detector device according to claim 1, it is characterised in that：The low noise amplifier connects
Radio-frequency input signals is received, the radio-frequency input signals covers 26.5GHz~40GHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820215690.6U CN207869096U (en) | 2018-02-07 | 2018-02-07 | A kind of millimeter wave logarithmic detector device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820215690.6U CN207869096U (en) | 2018-02-07 | 2018-02-07 | A kind of millimeter wave logarithmic detector device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207869096U true CN207869096U (en) | 2018-09-14 |
Family
ID=63457899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820215690.6U Active CN207869096U (en) | 2018-02-07 | 2018-02-07 | A kind of millimeter wave logarithmic detector device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207869096U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109462414A (en) * | 2018-09-29 | 2019-03-12 | 扬州海科电子科技有限公司 | A kind of 18-30GHz front end receiver component |
| CN114374368A (en) * | 2022-01-07 | 2022-04-19 | 扬州海科电子科技有限公司 | Millimeter wave logarithmic detection video amplifier and detection device with same |
-
2018
- 2018-02-07 CN CN201820215690.6U patent/CN207869096U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109462414A (en) * | 2018-09-29 | 2019-03-12 | 扬州海科电子科技有限公司 | A kind of 18-30GHz front end receiver component |
| CN114374368A (en) * | 2022-01-07 | 2022-04-19 | 扬州海科电子科技有限公司 | Millimeter wave logarithmic detection video amplifier and detection device with same |
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