CN108923796A - A kind of pre- fixed ampllitude dynamic regulation circuit in broadband and adjusting method - Google Patents
A kind of pre- fixed ampllitude dynamic regulation circuit in broadband and adjusting method Download PDFInfo
- Publication number
- CN108923796A CN108923796A CN201810583686.XA CN201810583686A CN108923796A CN 108923796 A CN108923796 A CN 108923796A CN 201810583686 A CN201810583686 A CN 201810583686A CN 108923796 A CN108923796 A CN 108923796A
- Authority
- CN
- China
- Prior art keywords
- wave detector
- pin diode
- comparator
- amplifier
- dynamic regulation
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
- H04B2001/0416—Circuits with power amplifiers having gain or transmission power control
Abstract
The invention discloses a kind of pre- fixed ampllitude dynamic regulation circuit in broadband and adjusting methods, belong to the field of test technology, including PIN diode, amplifier, wave detector, comparator, I/Q modulator and DA prewired circuit；Wherein, PIN diode, amplifier, wave detector and comparator, are in turn connected to form closed loop feedback path；DA prewired circuit and wave detector pass through the input terminal of connection to comparator respectively；The output end of comparator and the anode of PIN diode pass through connection；The common end of amplifier and wave detector is connected to the input terminal of I/Q modulator.Different preset voltages is arranged by frequency-division section by the present invention, adjust the pad value of different frequency range, negative-feedback circuit structure is introduced simultaneously, frequency-division section carries out preset dynamic regulation to input power, guarantee that the power for being input to I/Q modulator is flat in entire working frequency range, and then improves the Vector Modulation performance indicator of I/Q modulator.
Description
Technical field
The invention belongs to the field of test technology, and in particular to a kind of pre- fixed ampllitude dynamic regulation circuit in broadband and adjusting method.
Background technique
Due to the fast development of digital communication technology, people to the signal generator demand with Vector Modulation function increasingly
It is more, while the development of the technologies such as 5G communication, unmanned automobile is higher and higher to the band limits requirement of signal, this just believes commonality vector
The frequency coverage of number generator proposes broader requirement.Single I/Q modulator input frequency range up to 3~20GHz,
Even broader, this requires the input power in wide-band is sufficiently flat.Usual technology is frequency-division section input, i.e., different frequency ranges
Different accesses is walked, decays in different accesses or amplification factor is different, i.e., pre- decay technique, it is in this way it is also ensured that entire
Frequency range has preferable flatness, however will increase hardware cost in this way, simultaneously because hardware access is fixed, debugs not flexible.
Summary of the invention
For the above-mentioned technical problems in the prior art, the invention proposes a kind of pre- fixed ampllitude dynamic regulation electricity in broadband
Road and adjusting method, design rationally, overcome the deficiencies in the prior art, have good effect.
To achieve the goals above, the present invention adopts the following technical scheme that：
A kind of pre- fixed ampllitude dynamic regulation circuit in broadband, including PIN diode, amplifier, wave detector, comparator, I/Q modulation
Device and DA prewired circuit；Wherein, PIN diode, amplifier, wave detector and comparator, are in turn connected to form closed loop feedback path；
DA prewired circuit and wave detector pass through the input terminal of connection to comparator respectively；The output end and PIN diode of comparator
Anode pass through connection；The common end of amplifier and wave detector is connected to the input terminal of I/Q modulator.
In addition, the present invention is also mentioned that a kind of pre- fixed ampllitude dynamic regulating method in broadband, this method is using as described above a kind of
The pre- fixed ampllitude dynamic regulation circuit in broadband, specifically comprises the following steps：
Step 1：By DA prewired circuit, different frequency range is arranged different DA preset voltages；
Step 2：Judge the power of wave detector detection and the size of DA preset voltage；
If：When judging result is that the power of wave detector detection is greater than DA preset voltage, 3 are thened follow the steps；
Or judging result be wave detector detection power be less than DA preset voltage when, then follow the steps 4；
Step 3：By comparator, electric current on dynamic regulation PIN diode makes the electric current being applied on PIN diode
Reduce, thus the input signal power before droop amplifier, so that I/Q modulation input power reduces；
Step 4：By comparator, electric current on dynamic regulation PIN diode makes the electric current being applied on PIN diode
Increase, to keep the input signal power before amplifier unattenuated, so that I/Q modulation input power increases.
Advantageous effects brought by the present invention：
The present invention different preset voltages can be arranged by frequency-division section in an access, adjust the decaying of different frequency range
Value, while negative-feedback circuit structure is introduced, preset dynamic regulation can be carried out to input power with frequency-division section, guarantee is input to I/Q
The local oscillation power of modulator is flat in entire working frequency range, guarantees that I/Q modulator works in optimum state, and then improve I/Q
The Vector Modulation performance indicator of modulator；Compared to pre- decay technique, this technology is at low cost, and dynamic auto can adjust, together
When can be arranged easily and fast by DA, debugging is flexible.
Detailed description of the invention
Fig. 1 is a kind of pre- fixed ampllitude dynamic regulation circuit theory schematic diagram in broadband.
Specific embodiment
With reference to the accompanying drawing and specific embodiment invention is further described in detail：
Embodiment 1：
A kind of pre- fixed ampllitude dynamic regulation circuit in broadband, as shown in Figure 1, including PIN diode, amplifier, wave detector, comparing
Device, I/Q modulator and DA prewired circuit；Wherein, PIN diode, amplifier, wave detector and comparator, are in turn connected to form and close
Ring feedback network；DA prewired circuit and wave detector pass through the input terminal of connection to comparator respectively；The output end of comparator
Pass through connection with the anode of PIN diode；The common end of amplifier and wave detector is connected to the input terminal of I/Q modulator.
Embodiment 2：
On the basis of the above embodiments, the present invention is also mentioned that a kind of pre- fixed ampllitude dynamic regulating method in broadband, specifically includes
Following steps：
Step 1：By DA prewired circuit, different frequency range is arranged different DA preset voltages；
Step 2：Judge the power of wave detector detection and the size of DA preset voltage；
If：When judging result is that the power of wave detector detection is greater than DA preset voltage, 3 are thened follow the steps；
Or judging result be wave detector detection power be less than DA preset voltage when, then follow the steps 4；
Step 3：By comparator, electric current on dynamic regulation PIN diode makes the electric current being applied on PIN diode
Reduce, thus the input signal power before droop amplifier, so that I/Q modulation input power reduces；
Step 4：By comparator, electric current on dynamic regulation PIN diode makes the electric current being applied on PIN diode
Increase, to keep the input signal power before amplifier unattenuated, so that I/Q modulation input power increases.
Certainly, the above description is not a limitation of the present invention, and the present invention is also not limited to the example above, this technology neck
The variations, modifications, additions or substitutions that the technical staff in domain is made within the essential scope of the present invention also should belong to of the invention
Protection scope.
Claims (2)
1. a kind of pre- fixed ampllitude dynamic regulation circuit in broadband, it is characterised in that：Including PIN diode, amplifier, wave detector, compare
Device, I/Q modulator and DA prewired circuit；Wherein, PIN diode, amplifier, wave detector and comparator, are in turn connected to form and close
Ring feedback network；DA prewired circuit and wave detector pass through the input terminal of connection to comparator respectively；The output end of comparator
Pass through connection with the anode of PIN diode；The common end of amplifier and wave detector is connected to the input terminal of I/Q modulator.
2. a kind of pre- fixed ampllitude dynamic regulating method in broadband, it is characterised in that：It is pre- steady using a kind of broadband as described in claim 1
Width dynamic regulation circuit, specifically comprises the following steps：
Step 1：By DA prewired circuit, different frequency range is arranged different DA preset voltages；
Step 2：Judge the power of wave detector detection and the size of DA preset voltage；
If：When judging result is that the power of wave detector detection is greater than DA preset voltage, 3 are thened follow the steps；
Or judging result be wave detector detection power be less than DA preset voltage when, then follow the steps 4；
Step 3：By comparator, electric current on dynamic regulation PIN diode reduces the electric current being applied on PIN diode,
To the input signal power before droop amplifier, so that I/Q modulation input power reduces；
Step 4：By comparator, electric current on dynamic regulation PIN diode increases the electric current being applied on PIN diode,
To keep the input signal power before amplifier unattenuated, so that I/Q modulation input power increases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810583686.XA CN108923796A (en) | 2018-06-08 | 2018-06-08 | A kind of pre- fixed ampllitude dynamic regulation circuit in broadband and adjusting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810583686.XA CN108923796A (en) | 2018-06-08 | 2018-06-08 | A kind of pre- fixed ampllitude dynamic regulation circuit in broadband and adjusting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108923796A true CN108923796A (en) | 2018-11-30 |
Family
ID=64418966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810583686.XA Pending CN108923796A (en) | 2018-06-08 | 2018-06-08 | A kind of pre- fixed ampllitude dynamic regulation circuit in broadband and adjusting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108923796A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103208972A (en) * | 2012-01-12 | 2013-07-17 | 上海创远仪器技术股份有限公司 | Wide-band amplifier circuit with controllable gain and high flatness |
| CN204046583U (en) * | 2014-07-04 | 2014-12-24 | 三维通信股份有限公司 | High dynamically high-gain broadband receiver |
| CN104410429A (en) * | 2014-12-11 | 2015-03-11 | 中国电子科技集团公司第二十研究所 | Automatic gain control device based on data chain terminal machine |
| CN106200751A (en) * | 2016-08-15 | 2016-12-07 | 中国电子科技集团公司第四十研究所 | A kind of intermediate-freuqncy signal Power auto-adjustment circuit and method |
-
2018
- 2018-06-08 CN CN201810583686.XA patent/CN108923796A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103208972A (en) * | 2012-01-12 | 2013-07-17 | 上海创远仪器技术股份有限公司 | Wide-band amplifier circuit with controllable gain and high flatness |
| CN204046583U (en) * | 2014-07-04 | 2014-12-24 | 三维通信股份有限公司 | High dynamically high-gain broadband receiver |
| CN104410429A (en) * | 2014-12-11 | 2015-03-11 | 中国电子科技集团公司第二十研究所 | Automatic gain control device based on data chain terminal machine |
| CN106200751A (en) * | 2016-08-15 | 2016-12-07 | 中国电子科技集团公司第四十研究所 | A kind of intermediate-freuqncy signal Power auto-adjustment circuit and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102281002B (en) | Resonant-type electric switching circuit | |
| CN103956979A (en) | Power supply control device for power amplifier tube and power-on and power-off control method thereof | |
| CN105939148B (en) | Photovoltaic cell monitoring device | |
| US20200196249A1 (en) | Method and mobile terminal for reducing radiation | |
| Ensworth et al. | Waveform-aware ambient RF energy harvesting | |
| CN114567155B (en) | Power adapter, overcurrent protection circuit and electronic equipment | |
| CN106155168B (en) | The device and method of multiloop Power Control is carried out in the electronic device | |
| CN108923796A (en) | A kind of pre- fixed ampllitude dynamic regulation circuit in broadband and adjusting method | |
| CN205193152U (en) | City cable run ground connection circulation on -line monitoring device | |
| CN106301399B (en) | Mobile terminal, antenna assembly and radio-frequency front-end ballistic device | |
| CN202471912U (en) | Device for detecting fault of amplifier circuit and power amplifier circuit | |
| Mokhti et al. | Using waveform engineering to optimize class-F power amplifier performance in an envelope tracking architecture | |
| CN205355777U (en) | Fast reaction current protection circuit that can hiccup can be turn -offed in basic station power supply | |
| WO2018191967A1 (en) | Non-linear distortion mitigation for power amplifier | |
| CN114675101A (en) | Fault arc protection electrical appliance characteristic test method | |
| Stenumgaard et al. | Interference impact from solar-panel systems on air traffic control communications | |
| CN204288035U (en) | A kind of regulated power supply output terminal fictitious load control circuit | |
| US20180062385A1 (en) | Method and device for radio frequency voltage limiting | |
| CN205725448U (en) | A kind of switching power circuit with frequency jitter circuit | |
| Pan et al. | Design and implementation of IoT system and equipment for lightning parameter monitoring | |
| CN208589777U (en) | Peripheral hardware current control circuit and terminal device | |
| You et al. | Waveform-Based Design of a 2.8-GHz Self Synchronous Class-E RF-DC Rectifier with GaN Transistor | |
| Reddy et al. | A Complex Waveform Generator for Surge Arrester Evaluation used in HVDC Converter Stations | |
| CN210274073U (en) | Anti-static interference protection device for antenna interface | |
| Liu et al. | Challenges and statues of rectifier for far field wireless energy harvester in power variation of input RF/microwave signal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181130 |