CN104168001A - Eight-channel gain-controllable down converter - Google Patents
Eight-channel gain-controllable down converter Download PDFInfo
- Publication number
- CN104168001A CN104168001A CN201410228498.7A CN201410228498A CN104168001A CN 104168001 A CN104168001 A CN 104168001A CN 201410228498 A CN201410228498 A CN 201410228498A CN 104168001 A CN104168001 A CN 104168001A
- Authority
- CN
- China
- Prior art keywords
- attenuator
- amplifier
- control
- frequency conversion
- converter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Amplifiers (AREA)
Abstract
The invention relates to an eight-channel gain-controllable down converter. The eight-channel gain-controllable down converter includes multiple frequency conversion channels, a local oscillator demultiplexer, a power supply and a control unit; each frequency conversion channel is formed by an amplification filtering frequency conversion module, an amplification attenuation module and an amplification filtering module; the amplification filtering frequency conversion module includes a first-stage amplifier, a first-stage filter, a first-stage attenuator, a second-stage amplifier, a frequency mixer, a second-stage attenuator, a local oscillator attenuator, and a local oscillator amplifier; the amplification attenuation module includes a second-stage filter, a third-stage amplifier, a numerical control attenuator, and a third-stage attenuator; and the amplification filtering module includes a fourth-stage amplifier, a third-stage filter, a fourth-stage attenuator, and fifth-stage amplifier. The eight-channel gain-controllable down converter in the invention realizes simultaneous down conversion, power amplification and gain control of multiple paths of high frequency signals, and isolation among the multiple frequency conversion channels is larger than 80dB.
Description
Technical field
The present invention relates to the controlled low-converter of the high isolation gain of a kind of eight passages, belong to radio circuit design field.
Background technology
Frequency converter is divided into upconverter and low-converter, major function is to be high-frequency signal by low frequency signal frequency conversion, or be low frequency signal by high-frequency signal frequency conversion, simultaneously to signal amplify, filtering and gain control, be the indispensable equipment of system equipment such as modern radar, electronic countermeasures, telemetry and telecommand.Along with the development of technology; for the needs of Quick Measurement; conventionally multiple signals can be used simultaneously; at this moment just need multiple frequency conversion channels to use simultaneously; but the frequency converter major part of current use is all single; in the time that quantity increases, will consider multiple frequency conversion channels to be optimized Integrated design, otherwise will bring the shortcomings such as volume is large, power consumption is large, weight is large, installation is difficult, wiring is complicated.The multichannel frequency converter using at present is mainly used in phased array system and multichannel TT&C system, multiple passages receive multiple echo signals simultaneously, exist number of channels less, gain lower, channel isolation is less, consistency is poor, the problems such as power supply and control line wiring complexity.So at present urgent need will be studied one can to realize multichannel integrated, and realizes the frequency converter of high-isolation between each passage.
Summary of the invention
Technology of the present invention is dealt with problems and is: for the deficiencies in the prior art, provide the high isolation gain of a kind of eight passages controlled low-converter, realized Multi-channel high-frequency signal and carried out down-conversion, power amplification and gain control simultaneously, and between multichannel frequency conversion channel, isolation is greater than 80dB.
Technical solution of the present invention is:
The controlled low-converter of a kind of eight channel gain comprises: eight tunnel frequency conversion channels, local oscillator No. eight splitters, power supply and control unit; Each frequency conversion channel is made up of amplification filtering frequency-variable module, amplification attenuation module and amplification filtering module; Amplification filtering frequency-variable module comprises one-level amplifier, one-level filter, one-level attenuator, two-stage amplifier, frequency mixer, secondary attenuator, local oscillator attenuator, this vibration magnifier; Amplify attenuation module and comprise two-stage filter, third stage amplifier, numerical-control attenuator, three grades of attenuators; Amplification filtering module comprises level Four amplifier, three grades of filters, level Four attenuator, Pyatyi amplifier;
The amplification filtering frequency-variable module of frequency conversion channel the radiofrequency signal of reception is sent in one-level amplifier, one-level filter, one-level attenuator, two-stage amplifier successively amplify, filtering, decay, amplification processing, and signal after treatment is outputed to frequency mixer, the local oscillation signal receiving decayed simultaneously and amplify processing, then this local oscillation signal is sent into frequency mixer, frequency mixer carries out down-converted by the local oscillation signal receiving and radiofrequency signal and obtains intermediate-freuqncy signal, and outputs to amplification attenuation module after being sent into the decay of secondary attenuator;
The amplification attenuation module of frequency conversion channel is sent the intermediate-freuqncy signal receiving into successively two-stage filter, third stage amplifier and is carried out filtering, amplifies and process, and signal after treatment is outputed to numerical-control attenuator, numerical-control attenuator carries out the signal receiving after the decay of certain magnitude, then after overdamping, outputs to amplification filtering module;
The amplification filtering part of frequency conversion channel is sent into the intermediate-freuqncy signal receiving successively that level Four amplifier, three grades of filters, level Four attenuator, Pyatyi amplifiers amplify, is exported after filtering, decay, amplification;
Local oscillator No. eight splitters after the gain compensation of this vibration magnifier amplifies, arrive each frequency conversion channel through shunt output multi-channel local oscillation signal by the outside local oscillation signal receiving;
Power supply and control unit are converted to respectively certain power voltage supply to amplifier, numerical-control attenuator, power supply and control unit in this vibration magnifier, frequency conversion channel by the direct voltage of input; Power supply and control unit receive outside serial port control signal, and export 5 decay control levels complete Gain Automatic control for controlling numerical-control attenuator.
Described local oscillator No. eight splitters comprise this vibration magnifier, two splitters, two four splitters; Local oscillator eight splitters after the gain compensation of this vibration magnifier amplifies, are along separate routes exported eight road local oscillation signals to each frequency conversion channel through two splitters and two four splitter cascades by the outside local oscillation signal receiving.
This described vibration magnifier is selected ABA-54563, after being amplified, the local oscillator input signal receiving outputs to eight splitters, eight splitters adopt 1 BP2U1+ and 2 BP4U1+ circuits cascadings to realize, isolation is greater than 25dB, and local oscillator eight splitters carry out the local oscillation signal of this vibration magnifier output receiving shunt and output to 8 frequency conversion channels.
Described power supply and control unit comprise electric pressure converter 1, electric pressure converter 4, electric pressure converter 2-1 ... electric pressure converter 2-8, electric pressure converter 3 and Single-chip Controlling unit;
Described electric pressure converter 1, electric pressure converter 4, electric pressure converter 2-1 ... electric pressure converter 2-8 adopts LT1763CS8-5 series voltage converter, by input+be converted to+5V of 6V direct voltage is for giving amplifier, the numerical-control attenuator power supply in this vibration magnifier, frequency conversion channel, described electric pressure converter 3 adopts LT1763CS8-3.3 change output 3.3V direct voltage and powers into power supply and control unit self;
It is RS485 signal that Single-chip Controlling unit receives outside serial port control signal, this signal length is 1 byte, inside comprises attenuation value and check code, control unit receives after this signal, after verification is errorless, detect attenuation value, then with 5 pins output low and high levels of the form control of binary code, control numerical-control attenuator HMC472LP4E certain value of decaying, complete Gain Automatic control.
Described intermediate-freuqncy signal is 70MHz.
Described frequency mixer adopts HMC213AMS8 to realize; Described numerical-control attenuator adopts HMC472LP4E to realize; Described one-level amplifier, two-stage amplifier, third stage amplifier, level Four amplifier, Pyatyi amplifier all adopt ABA-5x563.
Described one-level filter adopts 6 rank Ceramic Dielectric Filter MP6A2620S64HCA, two-stage filter to adopt 7 rank LTCC Miniature Low Pass Filter LFCN-490, three grades of filters to adopt 13 rank LC filter 5MB/C-70/H24-S2B to realize; Described attenuators at different levels adopt respectively TVA series temperature compensation attenuator and π type resistance attenuator.
Described multichannel frequency conversion channel distributes side by side, adopts each other the isolation of metal muscle, chooses the high isolation of local oscillator frequency mixer.
Can be increased to 8 × n frequency conversion channel, utilize 1 control unit to control n eight passage low-converters simultaneously; Use a n splitter, local oscillator input signal is divided into n road, be then input to respectively the local oscillator input port of n eight passage low-converters; Use a power module output+6V, behind output in parallel n road, supply with respectively power supply and the control unit of n eight passage low-converters; Wherein n is 1,2,3,4 ...
The present invention's beneficial effect is compared with prior art:
(1) the present invention has realized the integrated of multichannel frequency conversion channel, can make Multi-channel high-frequency signal carry out down-conversion, power amplification and gain control simultaneously, improve multichannel consistency, versatility is stronger, multiple channel integral designs, each passage adopts simple cavity design, simplified design has strengthened machinability and production efficiency, between multiple cavitys, increase the design of metal muscle simultaneously, increase the isolation between multichannel, and increased one-level amplifier and attenuator before each frequency mixer local oscillator, make multichannel isolation be greater than 80dB.
(2) the present invention adopts high linear, two balanced passive mixers complete down-conversion, local oscillator leakage and band stray are reduced, adopt same train amplifier to amplify signal, gain is greater than 70dB, output 1dB compression point is greater than 12dBm, use minimum power consumption to obtain maximum gain, also reduced the kind of components and parts, adopt numerical-control attenuator to complete gain controls simultaneously, control precision is high, dynamic range is greater than 30dB, can adapt to wide dynamic range input signal, also adopt multi-stage filter further to improve the selectivity of channel, and to frequency converter, coupling between amplifier and filter each several part circuit is optimized design, further improve the linearity of channel, make frequency converter obtain spectral purity in higher band, band stray suppresses to be greater than 75dBc simultaneously, reduce the interference to other equipment in system.
(3) nuclear interface standardizing design of the present invention, adopts general radio frequency interface and power supply and control interface, has strengthened extensibility, and the present invention can be increased to 8 × n frequency conversion channel, utilizes 1 control unit to control n eight passage low-converters simultaneously; Utilize a n road local oscillator splitter that local oscillation signal is divided into n road, then be input to respectively the local oscillator input port of n the controlled low-converter of eight passages, finally be divided into the frequency mixer local oscillator port that 8 × n road local oscillation signal is input to 8 × n road frequency conversion channel, the present invention has improved the integrated level of radio equipment, volume, weight and the power consumption of radio equipment are reduced, versatility is stronger, and design cost and processing cost are all lower.
(4) frequency conversion channel of the present invention is divided into three modules, between three modules, also adopt the isolation of metal muscle, the size that has not only reduced printed board prevents printed board distortion, and the gain that has reduced single printed board has prevented the self-excitation behavior that the excessive gain of veneer may bring; All amplifiers divide three partial design, all select ABA-5x563 series amplifier, select flexibly according to the dynamic range of signals at different levels, take into account noise factor simultaneously, gain, power consumption and 1dB compression point, realized the 70dB high-gain of overall channel link in optimum mode.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is that expansion of the present invention is used structural representation;
Fig. 3 is frequency conversion channel architecture schematic diagram of the present invention;
Fig. 4 is local oscillator eight splitter structural representations of the present invention;
Fig. 5 is power supply of the present invention and control unit structural representation.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described in detail.
As shown in Figure 1, the controlled low-converter of a kind of eight channel gain comprises: eight tunnel frequency conversion channels, local oscillator No. eight splitters, power supply and control unit; Each frequency conversion channel is made up of amplification filtering frequency-variable module, amplification attenuation module and amplification filtering module; Amplification filtering frequency-variable module comprises one-level amplifier, one-level filter, one-level attenuator, two-stage amplifier, frequency mixer, secondary attenuator, local oscillator attenuator, this vibration magnifier; Amplify attenuation module and comprise two-stage filter, third stage amplifier, numerical-control attenuator, three grades of attenuators; Amplification filtering module comprises level Four amplifier, three grades of filters, level Four attenuator, Pyatyi amplifier.
As shown in Figure 3, the amplification filtering frequency-variable module of frequency conversion channel the radiofrequency signal of reception is sent in one-level amplifier, one-level filter, one-level attenuator, two-stage amplifier successively amplify, filtering, decay, amplification processing, and signal after treatment is outputed to frequency mixer, the local oscillation signal receiving decayed simultaneously and amplify processing, then this local oscillation signal is sent into frequency mixer, frequency mixer carries out down-converted by the local oscillation signal receiving and radiofrequency signal and obtains intermediate-freuqncy signal, and outputs to amplification attenuation module after being sent into the decay of secondary attenuator.Intermediate-freuqncy signal is 70MHz.
As shown in Figure 3, the amplification attenuation module of frequency conversion channel is sent the intermediate-freuqncy signal receiving into successively two-stage filter, third stage amplifier and is carried out filtering, amplifies and process, and signal after treatment is outputed to numerical-control attenuator, numerical-control attenuator carries out the signal receiving after the decay of certain magnitude, then after overdamping, outputs to amplification filtering module.
As shown in Figure 3, the amplification filtering part of frequency conversion channel is sent into the intermediate-freuqncy signal receiving successively that level Four amplifier, three grades of filters, level Four attenuator, Pyatyi amplifiers amplify, is exported after filtering, decay, amplification.
As shown in Figure 4, local oscillator No. eight splitters after the gain compensation of this vibration magnifier amplifies, arrive each frequency conversion channel through shunt output multi-channel local oscillation signal by the outside local oscillation signal receiving.
Local oscillator No. eight splitters comprise this vibration magnifier, two splitters, two four splitters; Local oscillator eight splitters after the gain compensation of this vibration magnifier amplifies, are along separate routes exported eight road local oscillation signals to each frequency conversion channel through two splitters and two four splitter cascades by the outside local oscillation signal receiving.
This vibration magnifier is selected ABA-54563, after being amplified, the local oscillator input signal receiving outputs to eight splitters, eight splitters adopt 1 BP2U1+ and 2 BP4U1+ circuits cascadings to realize, isolation is greater than 25dB, and local oscillator eight splitters carry out the local oscillation signal of this vibration magnifier output receiving shunt and output to 8 frequency conversion channels.
As shown in Figure 5, power supply and control unit are converted to respectively certain power voltage supply to amplifier, numerical-control attenuator, power supply and control unit unit in this vibration magnifier, frequency conversion channel by the direct voltage of input; Power supply and control unit receive outside serial port control signal, and export 5 decay control levels complete Gain Automatic control for controlling numerical-control attenuator.
Power supply and control unit comprise electric pressure converter 1, electric pressure converter 4, electric pressure converter 2-1 ... electric pressure converter 2-8, electric pressure converter 3 and Single-chip Controlling unit.
Electric pressure converter 1, electric pressure converter 2-1 ... electric pressure converter 2-8, electric pressure converter 4 adopt LT1763CS8-5 series voltage converter, by input+be converted to+5V of 6V direct voltage is for giving amplifier, the numerical-control attenuator power supply in this vibration magnifier, frequency conversion channel, described electric pressure converter 3 adopts LT1763CS8-3.3 change output 3.3V direct voltage and powers into power supply and control unit self.
It is RS485 signal that Single-chip Controlling unit receives outside serial port control signal, this signal length is 1 byte, inside comprises attenuation value and check code, control unit receives after this signal, after verification is errorless, detect attenuation value, then with 5 pins output low and high levels of the form control of binary code, control numerical-control attenuator HMC472LP4E certain value of decaying, complete Gain Automatic control.
Frequency mixer adopts HMC213AMS8 to realize; Described numerical-control attenuator adopts HMC472LP4E to realize; Described one-level amplifier, two-stage amplifier, third stage amplifier, level Four amplifier, Pyatyi amplifier all adopt ABA-5x563.
One-level filter adopts 6 rank Ceramic Dielectric Filter MP6A2620S64HCA, two-stage filter to adopt 7 rank LTCC Miniature Low Pass Filter LFCN-490, three grades of filters to adopt 13 rank LC filter 5MB/C-70/H24-S2B to realize; Described attenuators at different levels adopt respectively TVA series temperature compensation attenuator and π type resistance attenuator.
Multichannel frequency conversion channel distributes side by side, adopts each other the isolation of metal muscle, chooses the high isolation of local oscillator frequency mixer.
As shown in Figure 2, the present invention can further expand use on the basis of the controlled low-converter of eight channel gains, in the time that needs use more channels, use 8 × n (n=1,2,3,4 simultaneously ...) individual eight passage low-converters, control with power interface (Vcc & CTR) and use serial ports 1 to control, re-use 1 control unit n eight passage low-converters whiles 1 couple of n is controlled; Use a n splitter, local oscillator input signal is divided into n road, be then input to respectively the local oscillator input port of n eight passage low-converters; Use a power module output+6V, behind output in parallel n road, supply with respectively power supply and the control unit of n eight passage low-converters.
The present invention has passed through expert evaluation, has obtained good technique effect.Table 1, table 2 is eight passage low-converter test datas.
Table 1 isolation degree test data
| Isolation | 1 input | 2 inputs | 3 inputs | 4 inputs | 5 inputs | 6 inputs | 7 inputs | 8 inputs |
| 1 output | —— | 83 | 84 | 86 | 85 | 86 | 82 | 84 |
| 2 outputs | 82 | —— | 81 | 82 | 83 | 82 | 83 | 86 |
| 3 outputs | 82 | 83 | —— | 83 | 82 | 84 | 84 | 86 |
| 4 outputs | 84 | 81 | 82 | —— | 85 | 82 | 82 | 83 |
| 5 outputs | 83 | 82 | 81 | 85 | —— | 83 | 83 | 85 |
| 6 outputs | 84 | 85 | 83 | 84 | 82 | —— | 84 | 83 |
| 7 outputs | 81 | 83 | 85 | 82 | 85 | 84 | —— | 84 |
| 8 outputs | 86 | 82 | 83 | 83 | 81 | 82 | 86 | —— |
Table 2 gain waits index test data
| Sequence number | Index | Calculated value | Actual test value |
| 1 | Gain/dB | 71 | 72 |
| 2 | Gain consistency/dB | 1 | 1 |
| 3 | Noise factor/dB | 4.7 | 4.5 |
| 4 | Output 1dB compression point/dBm | 13 | 12 |
| 5 | I/O standing-wave ratio | 1.8/1.5 | 1.5/1.3 |
| 6 | Output three dB bandwidth/MHz | 15 | 18 |
| 7 | Clutter suppresses | 60dBc | 70dBc |
| 8 | Regime during recession/dB | 31 | 31 |
| 9 | Flatness/dB | 3dB | 1.6 |
| 10 | Power consumption/W | 12.6 | 14 |
General operational requirement isolation is greater than 60dB, and gain is greater than 50dB.Can be found out by table 1 and table 2 test data, isolation between the present invention's eight passages is greater than 80dB, each passage is greater than 70dB gain, greatly be better than general operational requirement, realize Liao Mei road gain controlled range simultaneously and be greater than 30dB, and overall target is good, in realizing high isolation high-gain, also realize low-noise factor, the indexs such as high output 1dB compression point and low-power consumption.
The content not being described in detail in specification of the present invention belongs to those skilled in the art's known technology.
Claims (9)
1. the controlled low-converter of eight channel gains, is characterized in that comprising: eight tunnel frequency conversion channels, local oscillator No. eight splitters, power supply and control unit; Each frequency conversion channel is made up of amplification filtering frequency-variable module, amplification attenuation module and amplification filtering module; Amplification filtering frequency-variable module comprises one-level amplifier, one-level filter, one-level attenuator, two-stage amplifier, frequency mixer, secondary attenuator, local oscillator attenuator, this vibration magnifier; Amplify attenuation module and comprise two-stage filter, third stage amplifier, numerical-control attenuator, three grades of attenuators; Amplification filtering module comprises level Four amplifier, three grades of filters, level Four attenuator, Pyatyi amplifier;
The amplification filtering frequency-variable module of frequency conversion channel the radiofrequency signal of reception is sent in one-level amplifier, one-level filter, one-level attenuator, two-stage amplifier successively amplify, filtering, decay, amplification processing, and signal after treatment is outputed to frequency mixer, the local oscillation signal receiving decayed simultaneously and amplify processing, then this local oscillation signal is sent into frequency mixer, frequency mixer carries out down-converted by the local oscillation signal receiving and radiofrequency signal and obtains intermediate-freuqncy signal, and outputs to amplification attenuation module after being sent into the decay of secondary attenuator;
The amplification attenuation module of frequency conversion channel is sent the intermediate-freuqncy signal receiving into successively two-stage filter, third stage amplifier and is carried out filtering, amplifies and process, and signal after treatment is outputed to numerical-control attenuator, numerical-control attenuator carries out the signal receiving after the decay of certain magnitude, then after overdamping, outputs to amplification filtering module;
The amplification filtering part of frequency conversion channel is sent into the intermediate-freuqncy signal receiving successively that level Four amplifier, three grades of filters, level Four attenuator, Pyatyi amplifiers amplify, is exported after filtering, decay, amplification;
Local oscillator No. eight splitters after the gain compensation of this vibration magnifier amplifies, arrive each frequency conversion channel through shunt output multi-channel local oscillation signal by the outside local oscillation signal receiving;
Power supply and control unit are converted to respectively certain power voltage supply to amplifier, numerical-control attenuator, power supply and control unit in this vibration magnifier, frequency conversion channel by the direct voltage of input; Power supply and control unit receive outside serial port control signal, and export 5 decay control levels complete Gain Automatic control for controlling numerical-control attenuator.
2. the controlled low-converter of a kind of eight channel gain according to claim 1, is characterized in that: described local oscillator No. eight splitters comprise this vibration magnifier, two splitters, two four splitters; Local oscillator eight splitters after the gain compensation of this vibration magnifier amplifies, are along separate routes exported eight road local oscillation signals to each frequency conversion channel through two splitters and two four splitter cascades by the outside local oscillation signal receiving.
3. the controlled low-converter of a kind of eight channel gain according to claim 2, it is characterized in that: this described vibration magnifier is selected ABA-54563, after being amplified, the local oscillator input signal receiving outputs to eight splitters, eight splitters adopt 1 BP2U1+ and 2 BP4U1+ circuits cascadings to realize, isolation is greater than 25dB, and local oscillator eight splitters carry out the local oscillation signal of this vibration magnifier output receiving shunt and output to 8 frequency conversion channels.
4. the controlled low-converter of a kind of eight channel gain according to claim 1, is characterized in that: described power supply and control unit comprise electric pressure converter 1, electric pressure converter 2-1 ... electric pressure converter 2-8, electric pressure converter 3, electric pressure converter 4 and Single-chip Controlling unit;
Described electric pressure converter 1, electric pressure converter 2-1 ... electric pressure converter 2-8, electric pressure converter 4 adopt LT1763CS8-5 series voltage converter, by input+be converted to+5V of 6V direct voltage is for giving amplifier, the numerical-control attenuator power supply in this vibration magnifier, frequency conversion channel, described electric pressure converter 3 adopts LT1763CS8-3.3 change output 3.3V direct voltage and powers into power supply and control unit self;
It is RS485 signal that Single-chip Controlling unit receives outside serial port control signal, this signal length is 1 byte, inside comprises attenuation value and check code, control unit receives after this signal, after verification is errorless, detect attenuation value, then with 5 pins output low and high levels of the form control of binary code, control numerical-control attenuator HMC472LP4E certain value of decaying, complete Gain Automatic control.
5. the controlled low-converter of a kind of eight channel gain according to claim 1, is characterized in that: described intermediate-freuqncy signal is 70MHz.
6. a kind of controlled low-converter of eight passages according to claim 1, is characterized in that: described frequency mixer adopts HMC213AMS8 to realize; Described numerical-control attenuator adopts HMC472LP4E to realize; Described one-level amplifier, two-stage amplifier, third stage amplifier, level Four amplifier, Pyatyi amplifier all adopt ABA-5x563.
7. the controlled low-converter of a kind of eight channel gain according to claim 1, is characterized in that: described one-level filter adopts 6 rank Ceramic Dielectric Filter MP6A2620S64HCA, two-stage filter to adopt 7 rank LTCC Miniature Low Pass Filter LFCN-490, three grades of filters to adopt 13 rank LC filter 5MB/C-70/H24-S2B to realize; Described attenuators at different levels adopt respectively TVA series temperature compensation attenuator and π type resistance attenuator.
8. the controlled low-converter of a kind of eight channel gain according to claim 1, is characterized in that: described multichannel frequency conversion channel distributes side by side, adopts each other the isolation of metal muscle, chooses the high isolation of local oscillator frequency mixer.
9. the controlled low-converter of a kind of eight channel gain according to claim 1, is further characterized in that: can be increased to 8 × n frequency conversion channel, utilize 1 control unit to control n eight passage low-converters simultaneously; Use a n splitter, local oscillator input signal is divided into n road, be then input to respectively the local oscillator input port of n eight passage low-converters; Use a power module output+6V, behind output in parallel n road, supply with respectively power supply and the control unit of n eight passage low-converters; Wherein n is 1,2,3,4 ...
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410228498.7A CN104168001A (en) | 2014-05-27 | 2014-05-27 | Eight-channel gain-controllable down converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410228498.7A CN104168001A (en) | 2014-05-27 | 2014-05-27 | Eight-channel gain-controllable down converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104168001A true CN104168001A (en) | 2014-11-26 |
Family
ID=51911676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410228498.7A Pending CN104168001A (en) | 2014-05-27 | 2014-05-27 | Eight-channel gain-controllable down converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104168001A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104954034A (en) * | 2015-06-25 | 2015-09-30 | 中国电子科技集团公司第四十一研究所 | Signal receiving device of eight-channel multi-mode system |
| CN108540097A (en) * | 2018-03-06 | 2018-09-14 | 北京理工大学 | A kind of broadband low spurious frequency conversion equipment |
| CN109120318A (en) * | 2018-11-07 | 2019-01-01 | 上海创远仪器技术股份有限公司 | The circuit structure of local oscillator driving function is realized based on extensive MIMO technique |
| CN109194347A (en) * | 2018-10-12 | 2019-01-11 | 南京屹信航天科技有限公司 | It is a kind of for minimizing the intermediate-frequency circuit of ODU receiving channel |
| CN109412621A (en) * | 2018-11-19 | 2019-03-01 | 中电科仪器仪表有限公司 | A kind of four-way independence fixed ampllitude formula local oscillator function separating device and method |
| CN109600143A (en) * | 2018-10-18 | 2019-04-09 | 中国航空无线电电子研究所 | 30MHz~2GHz multi-channel wide frequency range generalization integrates radio-frequency module |
| CN110808749A (en) * | 2019-11-06 | 2020-02-18 | 山东浪潮人工智能研究院有限公司 | Method for improving isolation of multichannel receiver |
| CN112272370A (en) * | 2020-11-17 | 2021-01-26 | 浙江大华技术股份有限公司 | CPE-based equipment configuration method and device and computer readable storage medium |
| CN116704848A (en) * | 2023-08-04 | 2023-09-05 | 南京航天工业科技有限公司 | Unmanned aerial vehicle airborne target simulation method, device and system for receiving and transmitting simultaneously |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832896A (en) * | 2012-08-02 | 2012-12-19 | 奥维通信股份有限公司 | System and method for automatic gain control |
| CN102843113A (en) * | 2012-09-18 | 2012-12-26 | 成都林海电子有限责任公司 | Down converter gain control method |
| CN102932021A (en) * | 2012-10-10 | 2013-02-13 | 中兴通讯股份有限公司 | Down-conversion device, down-conversion implementation method and receiver |
-
2014
- 2014-05-27 CN CN201410228498.7A patent/CN104168001A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832896A (en) * | 2012-08-02 | 2012-12-19 | 奥维通信股份有限公司 | System and method for automatic gain control |
| CN102843113A (en) * | 2012-09-18 | 2012-12-26 | 成都林海电子有限责任公司 | Down converter gain control method |
| CN102932021A (en) * | 2012-10-10 | 2013-02-13 | 中兴通讯股份有限公司 | Down-conversion device, down-conversion implementation method and receiver |
| WO2014056379A1 (en) * | 2012-10-10 | 2014-04-17 | 中兴通讯股份有限公司 | Down-conversion device and realizing method thereof and receiver |
Non-Patent Citations (2)
| Title |
|---|
| 宋里瑾等: "基于ADS的多通道下变频器仿真设计", 《遥测遥控》 * |
| 杨宏宇等: "基于FPGA的多通道数字信号下变频器设计", 《中国民航学院学报》 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104954034A (en) * | 2015-06-25 | 2015-09-30 | 中国电子科技集团公司第四十一研究所 | Signal receiving device of eight-channel multi-mode system |
| CN108540097A (en) * | 2018-03-06 | 2018-09-14 | 北京理工大学 | A kind of broadband low spurious frequency conversion equipment |
| CN109194347B (en) * | 2018-10-12 | 2024-01-23 | 南京屹信航天科技有限公司 | Intermediate frequency circuit for miniaturized ODU receiving channel |
| CN109194347A (en) * | 2018-10-12 | 2019-01-11 | 南京屹信航天科技有限公司 | It is a kind of for minimizing the intermediate-frequency circuit of ODU receiving channel |
| CN109600143A (en) * | 2018-10-18 | 2019-04-09 | 中国航空无线电电子研究所 | 30MHz~2GHz multi-channel wide frequency range generalization integrates radio-frequency module |
| CN109600143B (en) * | 2018-10-18 | 2020-10-27 | 中国航空无线电电子研究所 | 30 MHz-2 GHz multi-channel wide-band universal comprehensive radio frequency module |
| CN109120318A (en) * | 2018-11-07 | 2019-01-01 | 上海创远仪器技术股份有限公司 | The circuit structure of local oscillator driving function is realized based on extensive MIMO technique |
| CN109412621A (en) * | 2018-11-19 | 2019-03-01 | 中电科仪器仪表有限公司 | A kind of four-way independence fixed ampllitude formula local oscillator function separating device and method |
| CN110808749A (en) * | 2019-11-06 | 2020-02-18 | 山东浪潮人工智能研究院有限公司 | Method for improving isolation of multichannel receiver |
| CN112272370B (en) * | 2020-11-17 | 2023-04-18 | 浙江大华技术股份有限公司 | CPE-based equipment configuration method and device and computer readable storage medium |
| CN112272370A (en) * | 2020-11-17 | 2021-01-26 | 浙江大华技术股份有限公司 | CPE-based equipment configuration method and device and computer readable storage medium |
| CN116704848A (en) * | 2023-08-04 | 2023-09-05 | 南京航天工业科技有限公司 | Unmanned aerial vehicle airborne target simulation method, device and system for receiving and transmitting simultaneously |
| CN116704848B (en) * | 2023-08-04 | 2023-10-03 | 南京航天工业科技有限公司 | Unmanned aerial vehicle airborne target simulation method, device and system for receiving and transmitting simultaneously |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104168001A (en) | Eight-channel gain-controllable down converter | |
| CN108429594B (en) | High-performance channel simulator radio frequency transceiver applied to 5G communication | |
| CN101526564B (en) | Detection device and method for power and standing wave ratio | |
| CN102664642B (en) | Software radio system based on frequency spectrum sensing | |
| CN104301047A (en) | Power self-calibration device and method of multi-mode multi-frequency multi-channel system | |
| CN102565672A (en) | Radio-frequency power amplifier harmonic wave testing circuit based on PXI (PCI (Peripheral Component Interconnect) Extension For Instrumentation) testing device | |
| CN206041984U (en) | General microwave frequency converter | |
| CN210327507U (en) | Frequency conversion assembly for receiving frequency converter | |
| CN210745084U (en) | S-band up-converter for calibration equipment | |
| CN210297644U (en) | Receiving frequency converter | |
| CN204392183U (en) | Ku band up-conversion assembly | |
| CN109633617B (en) | Millimeter wave receiving and dispatching front end based on single-channel target information extraction | |
| CN103327600A (en) | Automatic control device and method of radio frequency link gains | |
| CN206060732U (en) | A kind of wide dynamic range AFE (analog front end) | |
| CN211352192U (en) | Frequency conversion receiving and transmitting circuit based on 2.4GWIFi | |
| CN206620115U (en) | Mobile terminal and its control circuit for improving TDD segment sensitive degree | |
| CN210323204U (en) | Multichannel K wave band radiometer receiver | |
| CN216565121U (en) | S-band and X-band receiving channel gain self-adaptive adjusting system | |
| CN204721339U (en) | A kind of signal receiving device of eight passage multimode systems | |
| CN205945653U (en) | Centralized down converter of multichannel | |
| CN214591433U (en) | Switch matrix unit for radio frequency transceiving | |
| CN215072329U (en) | Multichannel intermediate frequency pretreatment system | |
| CN216122384U (en) | TDD and FDD power amplifier multi-path circuit that closes | |
| CN204633716U (en) | C-band down conversion components | |
| CN210129856U (en) | Plug-in front end is divided to enlarged merit of ultra wide band multichannel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141126 |
|
| RJ01 | Rejection of invention patent application after publication |