CN210863953U - High-precision active power distribution assembly - Google Patents
High-precision active power distribution assembly Download PDFInfo
- Publication number
- CN210863953U CN210863953U CN201921412087.8U CN201921412087U CN210863953U CN 210863953 U CN210863953 U CN 210863953U CN 201921412087 U CN201921412087 U CN 201921412087U CN 210863953 U CN210863953 U CN 210863953U
- Authority
- CN
- China
- Prior art keywords
- circuit
- radio frequency
- output end
- output
- detection circuit
- 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.)
- Active
Links
Images
Landscapes
- Amplifiers (AREA)
Abstract
The utility model relates to a subassembly is divided to active merit of high accuracy, divide circuit, coupling detection circuitry, DC-DC converting circuit including the radio frequency power amplifier, the radio frequency input of radio frequency power amplifier branch circuit connects the radio frequency input signal, and the output of radio frequency power amplifier branch circuit exports radio frequency signal, connects coupling detection circuitry's input simultaneously, coupling detection circuitry's output fault detection alarm signal, DC-DC converting circuit output and radio frequency power amplifier branch circuit and coupling detection circuitry are connected simultaneously, DC-DC converting circuit's input be the outside power supply port of subassembly. The utility model discloses greatly reduced the volume of subassembly, improved standing-wave ratio, harmonic suppression ratio, clutter suppression ratio, in-band fluctuation, the isolation index that each output port of whole subassembly has improved effectively, guaranteed output signal's range and phase uniformity and stability, improved the performance of every output port anti total reflection of subassembly simultaneously.
Description
Technical Field
The utility model belongs to the technical field of the microwave, concretely relates to subassembly is divided to active merit of high accuracy.
Background
With the rapid development of electronic technology, high-precision active power division components are widely applied. With the recent rise of automatic testing and automatic burn-in testing systems for microwave component devices, high-precision active power distribution components are widely used, occupy a very important position in the automatic burn-in testing systems, and are favored by the characteristics of low-voltage operation, small size, light weight, long service life, high reliability and the like.
The high-precision active power division component in the prior art usually does not have a fault detection function, and the harmonic ratio, the clutter rejection ratio, the standing wave rejection ratio, the in-band fluctuation and the isolation degree are all not ideal, and the size of the component is too large. Therefore, it is necessary to provide a high-precision active power distribution module with a fault detection function, which is small in size, excellent in performance and high in reliability, and the utility model discloses the isolation between two ways of output, in-band fluctuation, harmonic ratio, clutter suppression ratio, phase consistency of each way, phase stability of each way are greatly improved and enhanced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a subassembly is divided to active merit of high accuracy, this subassembly is small, excellent performance, reliability are high.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a high-precision active power dividing assembly comprises a radio-frequency amplification power dividing circuit, a coupling detection circuit and a DC-DC conversion circuit, wherein a radio-frequency input end of the radio-frequency amplification power dividing circuit is connected with a radio-frequency input signal, an output end of the radio-frequency amplification power dividing circuit outputs a radio-frequency signal and is simultaneously connected with an input end of the coupling detection circuit, an output end of the coupling detection circuit outputs a fault detection alarm signal, an output end of the DC-DC conversion circuit is connected with the radio-frequency amplification power dividing circuit and the coupling detection circuit, and an input end of the DC-DC conversion circuit is an external power supply port of the assembly.
As a further improvement of the above technical solution:
the radio frequency amplification power dividing circuit comprises an attenuation network, an amplifying circuit, a filter, a power divider and an isolating circuit, wherein a radio frequency input end of the attenuation network is connected with a radio frequency input signal through a coupling capacitor, an output end of the attenuation network is connected with an input end of the amplifying circuit through the coupling capacitor, an output end of the amplifying circuit is connected with an input end of the power divider through the filter, an output end of the power divider is connected with an input end of the isolating circuit, and an output end of the isolating circuit outputs the radio frequency signal.
The amplifying circuit comprises a first-stage amplifying circuit and a second-stage amplifying circuit;
the input end of the primary amplifying circuit is connected with the output end of the attenuation network through a coupling capacitor, and the output end of the primary amplifying circuit is connected with the output end of the DC-DC conversion circuit and is connected with the input end of the secondary amplifying circuit through the coupling capacitor;
and the output end of the secondary amplifying circuit is connected with the output end of the DC-DC conversion circuit and is connected with the input end of the filter through a coupling capacitor.
The power divider adopts a one-to-two power divider, and the isolation circuit comprises a first isolator and a second isolator; the input end of the one-to-two power divider is connected with the output end of the filter through a coupling capacitor, the output end of the one-to-two power divider outputs two paths of radio frequency signals through the coupling capacitor, and the two paths of radio frequency signals are respectively connected with the input ends of the coupling detection circuit, the first isolator and the second isolator, and the output ends of the first isolator and the second isolator output radio frequency signals.
The coupling detection circuit comprises a first directional coupler, a second directional coupler, a first fault detection circuit, a second fault detection circuit and an AND gate circuit, wherein the output ends of the first directional coupler and the second directional coupler are respectively connected with the input ends of the first fault detection circuit and the second fault detection circuit through coupling capacitors, the power supply ends of the first fault detection circuit and the second fault detection circuit are respectively connected with the output end of the DC-DC conversion circuit and the input end of the AND gate circuit, and the output end of the gate circuit outputs fault signals.
The DC-DC conversion circuit comprises a first voltage stabilization block and a second voltage stabilization block, wherein the input end of the first voltage stabilization block is an external power supply port of the component; the output end of the first voltage stabilizing block is connected with the input end of the second voltage stabilizing block and is also connected with the output end of the radio frequency amplification power dividing circuit; and the output end of the second voltage stabilizing block is connected with the output end of the coupling detection circuit.
The primary amplifying circuit is a monolithic amplifier with the model number of ECG055B, and the secondary amplifying circuit is a monolithic amplifier with the model number of AH 102A; the first fault detection circuit and the second fault detection circuit are both detection circuits with the model number of HE 043.
The radio frequency amplification power dividing circuit, the coupling detection circuit and the DC-DC conversion circuit are mutually separated by adopting a cavity.
According to the above technical scheme, the utility model discloses greatly reduced the utility model discloses a volume, when the radio frequency output signal of two radio frequency output outputs of one minute two passive merit divider is normal, report high level moreover, when arbitrary way output power descends 6dB, detect out fault information immediately, report low level. Each circuit in the radio frequency amplification power dividing circuit is connected in a coupling capacitance mode, standing wave ratio, harmonic suppression ratio, clutter suppression ratio, in-band fluctuation and isolation indexes of each output port of the whole assembly are effectively improved, amplitude, phase consistency and stability of output signals are guaranteed, and meanwhile, total reflection resistance of each output port of the assembly is improved; radio frequency amplification power dividing circuit, coupling detection circuitry, DC-DC converting circuit adopt the cavity to separate the connection each other, have guaranteed the utility model discloses an electromagnetic compatibility, to sum up the utility model discloses still possess the advantage that good reliability is high, calorifics in electrical properties is good, the mechanics.
Drawings
Fig. 1 is a schematic circuit diagram of the present invention;
fig. 2 is a schematic diagram of the video amplification power dividing circuit of the present invention;
fig. 3 is a schematic diagram of the coupling detection circuit of the present invention;
fig. 4 is a schematic diagram of the DC-DC converter circuit of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1, the high-precision active power dividing assembly of this embodiment includes a radio frequency amplification power dividing circuit 1, a coupling detection circuit 2, and a DC-DC conversion circuit 3, where a radio frequency input end of the radio frequency amplification power dividing circuit 1 is connected to a radio frequency input signal, an output end of the radio frequency amplification power dividing circuit 1 outputs a radio frequency signal, and is simultaneously connected to an input end of the coupling detection circuit 2, an output end of the coupling detection circuit 2 outputs a fault detection alarm, an output end of the DC-DC conversion circuit 3 is connected to the radio frequency amplification power dividing circuit 1 and the coupling detection circuit 2, and an input end of the DC-DC conversion circuit 3 is an external power supply port of the assembly.
As shown in fig. 2, the rf amplifying power dividing circuit 1 is composed of an attenuation network 10, an amplifying circuit, a filter 13, a power divider and an isolating circuit, wherein the amplification stage number of the amplifying circuit can be set according to actual requirements, and the amplifying circuit of the embodiment is composed of a first-stage amplifying circuit 11 and a second-stage amplifying circuit 12; in this embodiment, because two paths of outputs are required, the power divider adopts a one-to-two power divider 14; the isolation circuit is composed of a first isolator 15 and a second isolator 16;
the radio frequency input end of the attenuation network 10 is connected with a radio frequency input signal through a coupling capacitor, the output end of the attenuation network 10 is connected with the input end of a first-stage amplifying circuit 11 through a coupling capacitor, the output end of the first-stage amplifying circuit 11 is connected with the output end of a first voltage stabilizing block 31 in a DC-DC conversion circuit 3, the output end of the first-stage amplifying circuit 11 is connected with the input end of a second-stage amplifying circuit 12 through a coupling capacitor, the output end of the second-stage amplifying circuit 12 is connected with the output end of the first voltage stabilizing block 31 in the DC-DC conversion circuit 3, the output end of the second-stage amplifying circuit 12 is connected with the input end of a filter 13 through a coupling capacitor, the output end of the filter 13 is connected with the input end of a one-two power divider 14 through a coupling capacitor, the output end of the one-two power divider, The input end of the second isolator 16, the output ends of the first isolator 15 and the second isolator 16 are the rf output ends of the components, and the output end of the one-to-two power divider 14 outputs two paths of rf signals through the coupling capacitors to connect with the input ends of the first directional coupler 21 and the second directional coupler 22, respectively.
The first-stage amplifying circuit 11 of the present embodiment adopts a monolithic amplifier with the model number of ECG055B, and the power supply voltage is directly provided by the output of the first voltage-stabilizing block 31 in the DC-DC conversion circuit 3; the second-stage amplifying circuit 12 adopts a monolithic amplifier with model number AH102A, the power supply voltage is directly output and supplied by the first voltage stabilizing block 31 in the DC-DC conversion circuit 3, the filter 13 adopts a filter with model number LFCN-2250, and the one-to-two power divider 14 adopts a one-to-two power divider with model number SCN-2-19; the first isolator 14 and the second isolator 16 are both TGHL-II 9.
As shown in fig. 3, the coupling detection circuit 2 is composed of a first directional coupler 21, a second directional coupler 22, a first fault detection circuit 23, a second fault detection circuit 24 and an and circuit 25, wherein output terminals of the first directional coupler 21 and the second directional coupler 22 are respectively connected to input terminals of the first fault detection circuit 23 and the second fault detection circuit 24 through coupling capacitors, the first fault detection circuit 23 and the second fault detection circuit 24 are respectively connected to an output terminal of a second voltage stabilization block 32 in the DC-DC conversion circuit 3, output terminals of the first fault detection circuit 23 and the second fault detection circuit 24 are also respectively connected to an input terminal of the and circuit 25, and an output terminal of the and circuit 25 outputs a fault signal.
The first directional coupler 21 and the second directional coupler 22 are directional couplers of DBTC-17-5+, the first fault detection circuit 23 and the second fault detection circuit 24 are detection circuits of HE043, and the AND gate circuit 25 is an AND gate of MC74HC1G08DTT 1.
As shown in fig. 4, the DC-DC conversion circuit 3 is composed of a first voltage-stabilizing block 31 and a second voltage-stabilizing block, an input terminal of the first voltage-stabilizing block 31 is connected to an external power interface, an output terminal of the first voltage-stabilizing block 31 is connected to an input terminal of the second voltage-stabilizing block 32, an output terminal of the first voltage-stabilizing block 31 is connected to an output terminal of the first-stage amplification circuit 11 and an output terminal of the second-stage amplification circuit 12 in the rf amplification power dividing circuit 1, and an output terminal of the second voltage-stabilizing block 32 is connected to the first fault detection circuit 23 and the second fault detection circuit 24 in the coupling detection circuit 2.
The first voltage block 31 of this embodiment employs a voltage block of model LM7809(S-7), and the second voltage block 32 employs a voltage block of model ZR78L05 SG.
The working principle of the circuit is as follows:
firstly, the DC-DC conversion circuit 3 converts +12V voltage inputted from outside into +9V voltage for output through the first voltage-stabilizing block 31, and converts +12V into +5V voltage for output through the second voltage-stabilizing block 32, so as to provide the +9V and +5V DC voltage required for the rf amplification power-dividing circuit 1, and provide the +5V DC voltage required for the coupling detection circuit 2.
Secondly, the radio frequency amplification power dividing circuit 2 enables externally input radio frequency signals to enter the attenuation network 10 through the coupling capacitor for signal attenuation, and therefore input standing wave indexes are guaranteed; the power passing through the attenuation network 10 passes through the coupling capacitor and then enters a first-stage amplifying circuit 11 and a second-stage amplifying circuit 12 for power amplification, the amplified power passes through the coupling capacitor and then enters a filter 13, out-of-band harmonic waves and clutter are filtered, and harmonic suppression and stray indexes are guaranteed; the radio frequency signal after passing through the filter 13 enters the one-to-two power divider 14 through coupling capacitance coupling, the one-to-two power divider 14 converts one input signal into two signal paths for output, the two output signal paths are respectively output through the first isolator 15 and the second isolator 16, and the first isolator 15 and the second isolator 16 ensure the output standing wave of the signal and the function of the module for resisting the total reflection of the output power; meanwhile, two paths of radio frequency signals output by the one-to-two power divider 14 enter the input of the coupling detection circuit 2 through the coupling capacitors respectively.
Then, the coupling detection circuit 2 converts two input channels of radio frequency signals into two input channels of low power signals through the first directional coupler 21 and the second directional coupler 22, and then respectively enters the first fault detection circuit 23 and the second fault detection circuit 24 through the coupling capacitors to perform power detection and convert the two input channels of high and low levels into two input channels of high and low levels, the two input channels of high and low levels simultaneously enter the and gate circuit 25, the two input channels of high levels simultaneously enter the and gate circuit 25, the and gate circuit 25 outputs high levels in a state that the whole module normally works, the and gate circuit 25 enters the and gate circuit 25 only if one input channel is low level, the and gate circuit 25 outputs low level in a state that the whole module fails.
The utility model discloses when using, the fault signal of output is the TTL level, and normal output reports high level, and arbitrary way output power descends 6dB and reports low level, all can control the use on general software platform, provides fault detection.
In actual work, after +12V voltage and a radio frequency input signal are provided from the outside, the component can work normally, the output end outputs two paths of radio frequency signals with the same power, the output two paths of radio frequency signals with the same power and the +12V power supply current are in direct proportion to the size of the radio frequency input signal, each path of radio frequency signal output in a saturated mode is a medium power signal, when the component works normally, an output fault signal displays a high level, namely, the component works normally, and when one path of output radio frequency signal is smaller than a normal value by 6dB, a low level, namely, a fault is displayed. This utility model discloses isolation, in-band fluctuation, harmonic ratio, clutter suppression ratio, each way phase place uniformity, each way phase place stability to between two tunnel of output these indexes have very big improvement and improvement.
The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.
Claims (9)
1. The utility model provides a subassembly is divided to high accuracy active merit which characterized in that: the power divider comprises a radio frequency amplification power dividing circuit (1), a coupling detection circuit (2) and a DC-DC conversion circuit (3), wherein a radio frequency input end of the radio frequency amplification power dividing circuit (1) is connected with a radio frequency input signal, an output end of the radio frequency amplification power dividing circuit (1) outputs a radio frequency signal, the output end of the radio frequency amplification power dividing circuit is connected with an input end of the coupling detection circuit (2), an output end of the coupling detection circuit (2) outputs a fault detection alarm signal, an output end of the DC-DC conversion circuit (3) is connected with the radio frequency amplification power dividing circuit (1) and the coupling detection circuit (2), and an input end of the DC-DC conversion circuit (3) is an external power supply port of an assembly.
2. The high accuracy active power splitting assembly of claim 1, wherein: the radio frequency amplification power dividing circuit (1) comprises an attenuation network (10), an amplifying circuit, a filter (13), a power divider and an isolating circuit, wherein a radio frequency input end of the attenuation network (10) is connected with a radio frequency input signal through a coupling capacitor, an output end of the attenuation network is connected with an input end of the amplifying circuit through the coupling capacitor, an output end of the amplifying circuit is connected with an input end of the power divider through the filter (13), an output end of the power divider is connected with an input end of the isolating circuit, and an output end of the isolating circuit outputs the radio frequency signal.
3. The high accuracy active power splitting assembly of claim 2, wherein: the amplifying circuit comprises a primary amplifying circuit (11) and a secondary amplifying circuit (12);
the input end of the primary amplification circuit (11) is connected with the output end of the attenuation network (10) through a coupling capacitor, and the output end of the primary amplification circuit (11) is connected with the output end of the DC-DC conversion circuit (3) and is connected with the input end of the secondary amplification circuit (12) through a coupling capacitor;
the output end of the second-stage amplifying circuit (12) is connected with the output end of the DC-DC conversion circuit (3) and is connected with the input end of the filter (13) through a coupling capacitor.
4. The high accuracy active power splitting assembly of claim 2, wherein: the power divider adopts a one-to-two power divider (14), and the isolation circuit comprises a first isolator (15) and a second isolator (16); the input end of the one-to-two power divider (14) is connected with the output end of the filter (13) through a coupling capacitor, the output end of the one-to-two power divider (14) outputs two paths of radio frequency signals through the coupling capacitor, the two paths of radio frequency signals are respectively connected with the input ends of the coupling detection circuit (2), the first isolator (15) and the second isolator (16), and the output ends of the first isolator (15) and the second isolator (16) output the radio frequency signals.
5. The high accuracy active power splitting assembly of claim 1, wherein: the coupling detection circuit (2) comprises a first directional coupler (21), a second directional coupler (22), a first fault detection circuit (23), a second fault detection circuit (24) and an AND gate circuit (25), the output ends of the first directional coupler (21) and the second directional coupler (22) are respectively connected with the input ends of the first fault detection circuit (23) and the second fault detection circuit (24) through coupling capacitors, the power supply ends of the first fault detection circuit (23) and the second fault detection circuit (24) are respectively connected with the output end of the DC-DC conversion circuit (3) and the input end of the AND gate circuit (25), and the output end of the gate circuit (25) outputs a fault signal.
6. The high accuracy active power splitting assembly of claim 1, wherein: the DC-DC conversion circuit (3) comprises a first voltage-stabilizing block (31) and a second voltage-stabilizing block (32), wherein the input end of the first voltage-stabilizing block (31) is an external power supply port of the component; the output end of the first voltage-stabilizing block (31) is connected with the input end of the second voltage-stabilizing block (32) and is also connected with the output end of the radio frequency amplification power dividing circuit (1); and the output end of the second voltage-stabilizing block (32) is connected with the power supply end of the coupling detection circuit (2).
7. The high accuracy active power splitting assembly of claim 3, wherein: the primary amplification circuit (11) is a monolithic amplifier with the model number of ECG055B, and the secondary amplification circuit (12) is a monolithic amplifier with the model number of AH 102A.
8. The high accuracy active power splitting assembly of claim 5, wherein: the first fault detection circuit (23) and the second fault detection circuit (24) are detection circuits with the model number of HE 043.
9. The high accuracy active power splitting assembly of claim 1, wherein: the radio frequency amplification power distribution circuit (1), the coupling detection circuit (2) and the DC-DC conversion circuit (3) are mutually separated by adopting a cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921412087.8U CN210863953U (en) | 2019-08-28 | 2019-08-28 | High-precision active power distribution assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921412087.8U CN210863953U (en) | 2019-08-28 | 2019-08-28 | High-precision active power distribution assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210863953U true CN210863953U (en) | 2020-06-26 |
Family
ID=71308196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921412087.8U Active CN210863953U (en) | 2019-08-28 | 2019-08-28 | High-precision active power distribution assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210863953U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110456255A (en) * | 2019-08-28 | 2019-11-15 | 中国电子科技集团公司第四十三研究所 | A kind of active function subassembly of high-precision |
-
2019
- 2019-08-28 CN CN201921412087.8U patent/CN210863953U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110456255A (en) * | 2019-08-28 | 2019-11-15 | 中国电子科技集团公司第四十三研究所 | A kind of active function subassembly of high-precision |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210863953U (en) | High-precision active power distribution assembly | |
| CN110763909A (en) | Digital display DC meter and voltage sampling circuit thereof | |
| CN112881790A (en) | 77GHz power monitoring circuit based on wave detector | |
| CN104931814A (en) | Digital isolation type grid detector | |
| CN114337710B (en) | Gain switching circuit for receiving radio frequency signal and radio frequency receiver | |
| CN108832714B (en) | Active distribution network intelligent terminal storage battery isolation monitoring device | |
| CN112198358B (en) | Flyback converter input voltage secondary side detection circuit | |
| CN204758714U (en) | Isolated electric wire netting detector of digit | |
| CN212695962U (en) | Miniaturized high efficiency power amplification module | |
| CN210273484U (en) | Protective circuit of capacitance voltage division type electronic voltage transformer | |
| CN217766603U (en) | Ultra-wideband power detection circuit and system | |
| CN103560311B (en) | Miniaturization and high-stability radio-frequency signal output module | |
| CN218122209U (en) | Ground sampling module and power supply system | |
| CN110456255A (en) | A kind of active function subassembly of high-precision | |
| CN211046878U (en) | High-frequency power amplification extension for microwave power capacity tester | |
| CN211505857U (en) | Large-capacity voltage transformer load box | |
| CN101470147A (en) | Scalar network tester | |
| CN215498936U (en) | Frequency conversion receiving device | |
| CN219068164U (en) | Low-cost absorption type amplitude limiting low-noise amplifier | |
| CN111865284B (en) | Single-pole multi-throw PIN tube switching circuit | |
| CN210578442U (en) | Low-frequency power amplification extension for microwave power capacity tester | |
| CN220271425U (en) | Voltage sampling connecting device | |
| CN215601304U (en) | Ku wave band signal receiving and transmitting assembly | |
| CN211296687U (en) | X-waveband solid-state power amplifier assembly | |
| CN212808408U (en) | Sleeve pipe voltage divider device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |