CN203086407U - Multi-time frequency conversion EHF frequency range up-converter - Google Patents
Multi-time frequency conversion EHF frequency range up-converter Download PDFInfo
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- CN203086407U CN203086407U CN 201220654757 CN201220654757U CN203086407U CN 203086407 U CN203086407 U CN 203086407U CN 201220654757 CN201220654757 CN 201220654757 CN 201220654757 U CN201220654757 U CN 201220654757U CN 203086407 U CN203086407 U CN 203086407U
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- ehf
- mixer
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Abstract
The utility model discloses a multi-time frequency conversion EHF frequency range up-converter, comprising a first frequency converter, a second frequency converter, and a third frequency converter which are sequentially connected. An intermediate frequency signal is input through the first frequency converter and finally a radiofrequency signal is obtained through the third frequency converter. Filters are respectively arranged behind the first frequency converter and the second frequency converter, and the filters are identical in frequency and bandwidth. The first frequency converter comprises a first mixer and a first oscillator; the second frequency converter comprises a second mixer and a second oscillator, and the third frequency converter comprises a third mixer and a third oscillator. Only by changing the frequencies of the mixers to select a needed signal, the requirement of frequency conversion from intermediate frequency to EHF frequency can be met and no excessive requirement is placed on the filters, so that the multi-time frequency conversion EHF frequency range up-converter is relatively low in design difficulty and cost.
Description
Technical field
The utility model relates to a kind of upconverter, is specifically related to a kind of EHF frequency range upconverter of repeatedly frequency conversion.
Background technology
Upconverter is the capital equipment of satellite communication system up link, and major function is to finish the frequency translation of if-to-rf, provides suitable gain also can realize the adjustment of link gain.
The EHF frequency range (30～300GHz) compare with other frequency ranges, have available bandwidth wide, disturb characteristics such as few, EHF frequency range message capacity is big, can improve the anti-interference and anti-performance of intercepting and capturing such as spread spectrum, frequency hopping greatly.
The EHF frequency range upconverter of current existence adopts the single-conversion mode mostly, because IF-FRE is lower with respect to the radio frequency output frequency, and radio frequency output services broadband imports pipe racks greater than intermediate frequency, and local frequency can be revealed in radio frequency output services bandwidth.Given this, industry is set up a band pass filter that suppresses local frequency at the output of equipment, but increases the cost and the design difficulty of equipment therewith.
The utility model content
At the problem that prior art exists, the purpose of this utility model is to provide a kind of EHF frequency range upconverter of repeatedly frequency conversion, and cost and design difficulty are lower.
The EHF frequency range upconverter of a kind of repeatedly frequency conversion that the utility model provides, it comprises first frequency converter that connects successively, second frequency converter, and the 3rd frequency converter, intermediate-freuqncy signal is after described first frequency converter input, finally obtain radiofrequency signal through described the 3rd frequency converter, rear respectively at described first frequency converter and described second frequency converter is provided with a filter, the frequency of each described filter is identical with bandwidth, described first frequency converter comprises first frequency mixer and first oscillator, described second frequency converter comprises second frequency mixer and second oscillator, and described the 3rd frequency converter comprises three-mixer and the 3rd oscillator.
Based on disclosing of above technical scheme, the utility model possesses following beneficial effect:
In the EHF frequency range upconverter of the repeatedly frequency conversion that the utility model provides, it comprises first frequency converter that connects successively, second frequency converter, and the 3rd frequency converter, intermediate-freuqncy signal is after described first frequency converter input, finally obtain radiofrequency signal through described the 3rd frequency converter, rear respectively at described first frequency converter and described second frequency converter is provided with a filter, the frequency of each described filter is identical with bandwidth, wherein, described first frequency converter comprises first frequency mixer and first oscillator, described second frequency converter comprises second frequency mixer and second oscillator, described the 3rd frequency converter comprises three-mixer and the 3rd oscillator, the frequency that only needs to change each described frequency mixer is selected desired signal, just can realize by the needs of intermediate frequency to the frequency conversion of EHF frequency range, and do not need that each described filter is had too much requirement, thereby the EHF frequency range upconverter design difficulty and the cost of described repeatedly frequency conversion are relatively low.
Description of drawings
Fig. 1 is the conversion process block diagram of the EHF frequency range upconverter of the repeatedly frequency conversion that provides of the utility model.
The drawing reference numeral explanation
The EHF frequency range upconverter 100 of frequency conversion repeatedly
First frequency converter, 1 first frequency mixer, 10 first oscillators 11
Second frequency converter, 2 second frequency mixers, 20 second oscillators 21
The 3rd frequency converter 3 three-mixers 30 the 3rd oscillator 31
Filter 4
Embodiment
Further specify the technical solution of the utility model below in conjunction with accompanying drawing and by embodiment:
At the problem that prior art exists, the purpose of this utility model is to provide a kind of EHF frequency range upconverter 100 of repeatedly frequency conversion, and cost and design difficulty are lower.
See also Fig. 1, the EHF frequency range upconverter 100 of a kind of repeatedly frequency conversion that the utility model provides, it comprises first frequency converter 1 that connects successively, second frequency converter 2, and the 3rd frequency converter 3, intermediate-freuqncy signal is after 1 input of described first frequency converter, finally obtain radiofrequency signal through described the 3rd frequency converter 3, rear respectively at described first frequency converter 1 and described second frequency converter 2 is provided with a filter 4, the frequency of each described filter 4 is identical with bandwidth, wherein, described first frequency converter 1 comprises first frequency mixer 10 and first oscillator 11, described second frequency converter 2 comprises second frequency mixer 20 and second oscillator 21, and described the 3rd frequency converter 3 comprises three-mixer 30 and the 3rd oscillator 31.
Based on disclosing of above technical scheme, the utility model possesses following beneficial effect:
In the EHF frequency range upconverter 100 of the repeatedly frequency conversion that the utility model provides, it comprises first frequency converter 1 that connects successively, second frequency converter 2, and the 3rd frequency converter 3, intermediate-freuqncy signal is after 1 input of described first frequency converter, finally obtain radiofrequency signal through described the 3rd frequency converter 3, respectively at described first frequency converter 1, described second frequency converter 2, and the rear of described the 3rd frequency converter 3 is provided with a filter 4, the frequency of each described filter 4 is identical with bandwidth, wherein, described first frequency converter 1 comprises first frequency mixer 10 and first oscillator 11, described second frequency converter 2 comprises second frequency mixer 20 and second oscillator 21, described the 3rd frequency converter 3 comprises three-mixer 30 and the 3rd oscillator 31, only need to change each described frequency mixer and (comprise first frequency mixer 10, second frequency mixer 20 and the three-mixer 30) frequency is selected desired signal, just can realize by the needs of intermediate frequency to the frequency conversion of EHF frequency range, and do not need that each described filter 4 is had too much requirement, thereby EHF frequency range upconverter 100 design difficulty and the cost of described repeatedly frequency conversion are relatively low.
In conjunction with the accompanying drawings the utility model has been carried out exemplary description above; obvious realization of the present utility model is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted method design of the present utility model and technical scheme to carry out; or design of the present utility model and technical scheme are directly applied to other occasion without improving, all in protection range of the present utility model.
Claims (1)
1. EHF frequency range upconverter of frequency conversion repeatedly, it is characterized in that, comprise first frequency converter that connects successively, second frequency converter, and the 3rd frequency converter, intermediate-freuqncy signal is after described first frequency converter input, finally obtain radiofrequency signal through described the 3rd frequency converter, rear respectively at described first frequency converter and described second frequency converter is provided with a filter, the frequency of each described filter is identical with bandwidth, described first frequency converter comprises first frequency mixer and first oscillator, described second frequency converter comprises second frequency mixer and second oscillator, and described the 3rd frequency converter comprises three-mixer and the 3rd oscillator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220654757 CN203086407U (en) | 2012-12-03 | 2012-12-03 | Multi-time frequency conversion EHF frequency range up-converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220654757 CN203086407U (en) | 2012-12-03 | 2012-12-03 | Multi-time frequency conversion EHF frequency range up-converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203086407U true CN203086407U (en) | 2013-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220654757 Expired - Fee Related CN203086407U (en) | 2012-12-03 | 2012-12-03 | Multi-time frequency conversion EHF frequency range up-converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203086407U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016145837A1 (en) * | 2015-03-17 | 2016-09-22 | 华为技术有限公司 | Signal frequency conversion circuit and signal frequency conversion method |
-
2012
- 2012-12-03 CN CN 201220654757 patent/CN203086407U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016145837A1 (en) * | 2015-03-17 | 2016-09-22 | 华为技术有限公司 | Signal frequency conversion circuit and signal frequency conversion method |
| US9780729B2 (en) | 2015-03-17 | 2017-10-03 | Huawei Technologies Co., Ltd. | Signal frequency conversion circuit and signal frequency conversion method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20171203 |