CN113381706A - Power amplifier and communication equipment - Google Patents
Power amplifier and communication equipment Download PDFInfo
- Publication number
- CN113381706A CN113381706A CN202110727030.2A CN202110727030A CN113381706A CN 113381706 A CN113381706 A CN 113381706A CN 202110727030 A CN202110727030 A CN 202110727030A CN 113381706 A CN113381706 A CN 113381706A
- Authority
- CN
- China
- Prior art keywords
- module
- electrically connected
- circuit
- output end
- input end
- 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
- 238000004891 communication Methods 0.000 title claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims description 17
- 230000015572 biosynthetic process Effects 0.000 description 9
- 238000003786 synthesis reaction Methods 0.000 description 9
- 238000013461 design Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000003321 amplification Effects 0.000 description 5
- 238000003199 nucleic acid amplification method Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/52—Circuit arrangements for protecting such amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/26—Modifications of amplifiers to reduce influence of noise generated by amplifying elements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
- H03F1/303—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters using a switching device
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
- H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F3/211—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several amplifiers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
The invention provides a power amplifier and communication equipment, which belong to the technical field of radio frequency, wherein the power amplifier comprises a radio frequency circuit and a control circuit, and the control circuit comprises a power supply sequential circuit and a temperature protection circuit; the radio frequency circuit is used for amplifying and outputting an input radio frequency signal; the output end of the power supply time sequence circuit is electrically connected with the differential input end of the radio frequency circuit so as to provide direct current bias and time sequence protection for the radio frequency circuit; the output end of the temperature protection circuit is electrically connected with the input end of the power supply sequential circuit and used for disconnecting the power supply sequential circuit from the radio frequency circuit when the temperature of the power amplifier exceeds a preset threshold value. The power amplifier can provide ultra-wideband high power, and the temperature protection circuit greatly increases the reliability of the power amplifier.
Description
Technical Field
The invention belongs to the technical field of radio frequency, and particularly relates to a power amplifier and communication equipment.
Background
The power amplifier is used for carrying out multistage amplification on weak radio frequency signals to finally reach a certain power value, is widely applied to the fields of communication, EMC (electro magnetic compatibility) test and the like, can determine the working current of the power amplifier in communication equipment through current detection, and can also use the detected working current as an alarm or power amplifier feedback control quantity of a communication system and the like. The power amplifier is an important component of a communication system, and mainly plays a role in performing power amplification on a communication signal so as to achieve the purposes of wider coverage and higher data transmission quantity. With the continuous extension of applications, power amplifiers are continuously developing towards broadband high power. However, as power increases, the space for power amplifiers also increases.
In view of the above problems, there is a need for a power amplifier and a communication device with reasonable design and capable of effectively solving the above technical problems.
Disclosure of Invention
The present invention is directed to at least one of the technical problems of the prior art, and provides a power amplifier and a communication device.
One aspect of the present invention provides a power amplifier, including a radio frequency circuit and a control circuit, where the control circuit includes a power supply timing circuit and a temperature protection circuit; the radio frequency circuit is used for amplifying and outputting an input radio frequency signal; the output end of the power supply sequential circuit is electrically connected with the differential input end of the radio frequency circuit so as to provide direct current bias and sequential protection for the radio frequency circuit; the output end of the temperature protection circuit is electrically connected with the input end of the power supply sequential circuit and used for disconnecting the power supply sequential circuit from the radio frequency circuit when the temperature of the power amplifier exceeds a preset threshold value.
Optionally, the control circuit further includes a current monitoring circuit and a voltage follower; and the first output end of the current monitoring circuit is electrically connected with the input end of the power supply sequential circuit, and the second output end of the current monitoring circuit is electrically connected with the input end of the voltage follower and used for monitoring the working current of the power amplifier in real time.
Optionally, the input end of the current monitoring circuit is electrically connected to the output end of the temperature protection circuit.
Optionally, the temperature protection circuit adopts a temperature switch.
Optionally, the temperature switch is a normally closed temperature switch.
Optionally, the portable electronic device further comprises a box body and a circuit board, wherein an accommodating cavity is arranged in the box body, and the control circuit is arranged on the circuit board; the radio frequency circuit is arranged in the accommodating cavity, and the circuit board covers the box body to provide a radio frequency shielding body for the radio frequency circuit.
Optionally, the radio frequency circuit includes a preceding stage module, a driving stage module, a power divider, a first final stage module, a second final stage module, and a synthesizer; the input end of the driving stage module is electrically connected with the output end of the preceding stage module, and the output end of the driving stage module is electrically connected with the input end of the power divider; a first output end of the power divider is electrically connected with an input end of the first final-stage module, and a second output end of the power divider is electrically connected with an input end of the second final-stage module; the output end of the first final stage module is electrically connected with the first input end of the synthesizer, and the output end of the second final stage module is electrically connected with the second input end of the synthesizer; and the output end of the power supply sequential circuit is electrically connected with the differential input ends of the preceding stage module, the driving stage module, the first final stage module and the second final stage module respectively.
Optionally, the radio frequency circuit further includes an equalizer, a first attenuator, and a second attenuator; the input end of the equalizer is electrically connected with the output end of the preceding stage module, and the output end of the equalizer is electrically connected with the input end of the first attenuator; the output end of the first attenuator is electrically connected with the input end of the driving stage module; the input end of the second attenuator is electrically connected with the output end of the driving stage module, and the output end of the second attenuator is electrically connected with the input end of the power divider.
Optionally, the power supply sequential circuit includes a sequential module, a first power module, a second power module, a third power module, and a fourth power module;
the input end of the time sequence module is used for being electrically connected with a voltage end, the first output end of the time sequence module is electrically connected with the input end of the first power supply module, and the output end of the first power supply module is electrically connected with the differential input end of the preceding stage module;
a second output end of the timing sequence module is electrically connected with a first differential input end of the driving stage module, and an output end of the second power supply module is electrically connected with a second differential input end of the driving stage module;
a third output end of the timing module is electrically connected with a first differential input end of the first final stage module, and an output end of the third power supply module is electrically connected with a second differential input end of the first final stage module;
a fourth output end of the timing module is electrically connected with a first differential input end of the second last-stage module, and an output end of the fourth power supply module is electrically connected with a second differential input end of the second last-stage module;
and the enabling output end of the time sequence module is electrically connected with the enabling input ends of the second power supply module, the third power supply module and the fourth power supply module respectively.
Another aspect of the present invention provides a communication device comprising the power amplifier described above.
The power amplifier and the communication equipment comprise a radio frequency circuit and a control circuit, wherein the control circuit comprises a power supply time sequence circuit and a temperature protection circuit; the radio frequency circuit is used for amplifying and outputting an input radio frequency signal; the output end of the power supply time sequence circuit is electrically connected with the differential input end of the radio frequency circuit so as to provide direct current bias and time sequence protection for the radio frequency circuit; the output end of the temperature protection circuit is electrically connected with the input end of the power supply sequential circuit and used for disconnecting the power supply sequential circuit from the radio frequency circuit when the temperature of the power amplifier exceeds a preset threshold value. The power amplifier can provide ultra-wideband high power, and the temperature protection circuit greatly increases the reliability of the power amplifier.
Drawings
Fig. 1 is a schematic diagram illustrating an internal principle of a power amplifier according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a temperature protection circuit and a current monitoring circuit in a power amplifier according to another embodiment of the present invention;
fig. 3 is a schematic structural diagram of a power amplifier according to another embodiment of the present invention;
fig. 4 is a schematic diagram illustrating an internal principle of a power supply timing circuit in a power amplifier according to another embodiment of the present invention;
fig. 5 is a schematic diagram of a single-sided distribution/synthesis network structure of a power amplifier according to another embodiment of the present invention;
fig. 6 is a parameter diagram of a single-sided distribution/synthesis network S21 in a power amplifier according to another embodiment of the invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, an aspect of the present invention provides a power amplifier 100, which includes a radio frequency circuit 110 and a control circuit, where the control circuit includes a power supply timing circuit 120 and a temperature protection circuit 130; a radio frequency circuit 110 for amplifying and outputting an input radio frequency signal; the output terminal of the power supply timing circuit 120 is electrically connected to the differential input terminal of the rf circuit 110 for providing dc bias and timing protection to the rf circuit 110; an output terminal of the temperature protection circuit 130 is electrically connected to an input terminal of the power supply timing circuit 120, and is configured to disconnect the power supply timing circuit 120 from the rf circuit 110 when the temperature of the power amplifier 100 exceeds a preset threshold.
Specifically, the power amplifier 100 in the present embodiment is a 2-18G wide band power amplifier. The temperature protection circuit 130 is used for automatically disconnecting the drain power supply when the temperature of the power amplifier 100 exceeds 70 ℃, reporting an over-temperature fault signal, and automatically opening the drain power supply when the temperature of the power amplifier 100 is reduced to 50 ℃.
The power amplifier comprises a radio frequency circuit and a control circuit, wherein the control circuit comprises a power supply sequential circuit temperature protection circuit; the power amplifier can provide ultra-wideband high power, and the temperature protection circuit greatly increases the reliability of the power amplifier.
Illustratively, as shown in fig. 2, the control circuit further includes a current monitoring circuit 140 and a voltage follower 150; a first output terminal of the current monitoring circuit 140 is electrically connected to an input terminal of the power supply timing circuit 120, and a second output terminal of the current monitoring circuit 140 is electrically connected to an input terminal of the voltage follower 150, so as to monitor the operating current of the power amplifier 100 in real time.
Specifically, in the present embodiment, the current monitoring circuit 140 selects the ACS715 current sampling chip to sample the total current of the power amplifier 100, and the sampled voltage is output through the voltage follower 150.
Illustratively, as shown in fig. 2, an input terminal of the current monitoring circuit 140 is electrically connected to an output terminal of the temperature protection circuit 130. The temperature protection circuit 130 employs a temperature switch 131. Further preferably, the temperature switch 131 is a normally closed temperature switch.
Specifically, in this embodiment, the 28V power supply first passes through 1 mechanical temperature switch, which is a 6700 series temperature switch from AJRPAX company, and the switch is a normally closed type, and is automatically opened when the temperature exceeds 70 degrees, and is automatically closed when the temperature is lower than 50 degrees, and the temperature alarm signal is normally 28V, and after the temperature is over-temperature, the temperature switch is opened, and the temperature alarm signal outputs a low level of 0V, and the voltage passes through the temperature switch 131 and enters the current monitoring circuit 140.
Illustratively, as shown in fig. 3, the power amplifier 100 further includes a box 160 and a circuit board 170, wherein the box 160 is provided with a receiving cavity 161 therein, and the control circuit is disposed on the circuit board 170; the rf circuit 110 is disposed in the cavity 161, and the circuit board 170 is disposed on the box 160 to provide an rf shield for the rf circuit 110. It should be noted that, in the present embodiment, a PCB circuit board is used, and other circuit boards may also be used, and the present embodiment is not particularly limited, wherein the length, the width and the height of the box 160 of the power amplifier 100 are 60mm, 80mm and 10mm, respectively. The power amplifier of the invention abandons the design concept that the traditional control circuit and the radio frequency circuit are on the same plane, adopts three-dimensional design, places the control circuit on the radio frequency circuit, and uses the circuit board of the control circuit as a radio frequency shield, thereby saving a large amount of space and providing a new idea for the miniaturization design of the module.
Illustratively, as shown in fig. 1, the rf circuit 110 includes a front-stage block 111, a driver-stage block 112, a power divider 113, a first final-stage block 114, a second final-stage block 115, and a combiner 116; the input end of the driving stage module 112 is electrically connected with the output end of the preceding stage module 111, and the output end of the driving stage module 112 is electrically connected with the input end of the power divider 113; a first output end of the power divider 113 is electrically connected to an input end of the first final stage module 114, and a second output end of the power divider 113 is electrically connected to an input end of the second final stage module 115; the output of the first final stage block 114 is electrically connected to a first input of the combiner 116, and the output of the second final stage block 115 is electrically connected to a second input of the combiner 116; the output terminal of the power supply timing circuit 120 is electrically connected to the differential input terminals of the previous stage module 111, the driving stage module 112, the first final stage module 114, and the second final stage module 115, respectively.
Illustratively, as shown in fig. 1, the rf circuit 110 further includes an equalizer 117, a first attenuator 118, and a second attenuator 119; the input end of the equalizer 117 is electrically connected with the output end of the preceding-stage module 111, and the output end of the equalizer 117 is electrically connected with the input end of the first attenuator 118, so as to adjust the amplitude-frequency characteristic of the whole machine; the output end of the first attenuator 118 is electrically connected with the input end of the driver stage module 112, and is used for limiting the power of the former stage module 111 and improving the inter-stage matching; the input terminal of the second attenuator 119 is electrically connected to the output terminal of the driver stage module 112, and the output terminal of the second attenuator 119 is electrically connected to the input terminal of the power divider 113, so as to limit the power of the driver stage module 112 and improve the inter-stage matching.
Specifically, in this embodiment, as shown in fig. 1, the operation principle of the radio frequency circuit 110 is that a radio frequency signal enters the front stage module 111 for amplification, and outputs a signal of 18dBm, and then enters the driving stage module 112 for amplification through the equalizer 117 and the 2dB first attenuator 118, and outputs a radio frequency signal of 30dBm, and the radio frequency signal enters the distribution/synthesis network through the 2dB second attenuator 119, and is divided into two paths through the power divider 113, and then enters the first final stage module 114 and the second final stage module 115 for amplification, and each final stage module outputs 40dBm, and then outputs a radio frequency signal of 41.8dBm through the synthesizer 116.
In this embodiment, the front module 111 adopts a monolithic low noise amplifier (MMIC) with excellent performance, and the chip is made of 0.15um low noise gallium arsenide, and has a good noise coefficient and a good amplitude-frequency characteristic, and the parameters are as follows:
the working frequency is as follows: 2-18G;
the output power is more than or equal to 18 dBm;
gain: not less than 15 dB;
noise coefficient: 3.5 dB;
biasing: + 5V;
chip size: 2.68mm 1.36mm 0.1 mm.
the working frequency is as follows: 2-18G;
gain: not less than 16 dB;
output power: not less than 35 dBm;
biasing: drain electrode 24V, grid electrode-1.8V;
chip size: 3.3mm 1.8mm 0.08 mm.
The first final stage block 114 and the second final stage block 115 also use a 0.20um gate length gan driver amplifier with excellent performance, which can provide a saturated output power above 40dBm, and at the same time, have a high gain of 15dB, and the specific parameters are as follows:
the working frequency is as follows: 2-18G;
gain: not less than 15 dB;
output power: not less than 40 dBm;
biasing: the drain electrode is 28V, and the grid electrode is-1.8V;
chip size: 3.5mm 4.8mm 0.08 mm.
It should be noted that other driving amplifiers may be used for the front-stage module 111, the driving-stage module 112, the first final-stage module 114, and the second final-stage module 115, as long as the required power of the present embodiment can be achieved, and the selection of the driving amplifiers in the present embodiment is not particularly limited, and may be selected as needed.
As shown in fig. 1 and fig. 5, the distribution/synthesis network mainly functions to distribute and synthesize the rf signals, and is specifically implemented by the power divider 113 and the synthesizer 116. In the embodiment, a single-side distribution/synthesis network is adopted, wherein Er of the single-side distribution/synthesis network plate is 2.2, the thickness of the single-side distribution/synthesis network plate is 0.254mm, and the thickness of an air cavity is 5 mm. The network adopts a gradual change line to realize impedance transformation and realize the broadband distribution and synthesis functions of 2-18G, the power divider 113 and the synthesizer 116 are symmetrical, and the same impedance transformation structure is adopted. As shown in FIG. 6, the insertion loss of the single-side structure of the single-side distribution/synthesis network is less than 0.5dB in the whole frequency band, so that the insertion loss of the network can be guaranteed within 1dB in the whole frequency band range of 2-18G.
For example, as shown in fig. 4, the power supply timing circuit 120 includes a timing module 121, a first power module 122, a second power module 123, a third power module 124, and a fourth power module 125;
the input end of the timing module 121 is used for being electrically connected with a voltage end, the first output end of the timing module 121 is electrically connected with the input end of the first power module 122, and the output end of the first power module 122 is electrically connected with the differential input end of the preceding-stage module 111;
a second output end of the timing module 121 is electrically connected to a first differential input end of the driving stage module 112, and an output end of the second power module 123 is electrically connected to a second differential input end of the driving stage module 112;
a third output terminal of the timing module 121 is electrically connected to a first differential input terminal of the first last stage module 114, and an output terminal of the third power supply module 124 is electrically connected to a second differential input terminal of the first last stage module 114;
a fourth output terminal of the timing module 121 is electrically connected to a first differential input terminal of the second last stage module 115, and an output terminal of the fourth power supply module 125 is electrically connected to a second differential input terminal of the second last stage module 115;
the enable output terminal of the timing module 121 is electrically connected to the enable input terminals of the second power module 123, the third power module 124 and the fourth power module 125, respectively.
It should be noted that, in this embodiment, the timing module 121 adopts a DC-DC timing module, and the power modules all adopt DC-DC power modules, which is not specifically limited in this embodiment.
Specifically, as shown in fig. 4, the power supply timing circuit 120 operates on the principle that after being input at 28V, the power supply timing circuit first passes through the DC-DC timing module 121 to generate 5 sets of voltages, which are respectively 1 set of VD1, 1 set of VG2, 2 sets of VG3, and 1 set of EN, and respectively correspond to the first to fifth output terminals of the timing module 121. Wherein VD1 provides bias for the pre-stage module 111 of the rf circuit 110 at +5V, VG2 provides negative gate bias for the driver stage module 112 of the rf circuit 110 at-1.8V, VG3 provides negative gate bias for the first final stage module 114 and the second final stage module 115 of the rf circuit 110 at-1.8V, EN provides enable signals to the enable terminals of the second power module 123, the third power module 124, and the fourth power module 125, respectively, with timing lags VD1, VG2, and VG3, and the second power module 123, the third power module 124, and the fourth power module 125 generate drain voltages VD2 and VD3 required by the driver stage module 112, the first final stage module 114, and the second final stage module 115, respectively, after receiving the enable signals, wherein VD2 and VD3 are +28V, so that VD2 and VD3 lag VG2 and VG3, respectively, and the requirements of the power tube for timing are guaranteed. The DC-DC module adopts a uModul low-noise voltage stabilizer of ADI company, has the characteristics of small volume, high efficiency, low noise and wide input voltage range, and is very suitable for the miniaturization design of the module.
The measured data for the power amplifier 100 is shown in table 1, where the supply is 28V.
TABLE 1 measured data
As can be seen from Table 1, the output power of the power amplifier is above 15W, the efficiency of the power amplifier is more than or equal to 14%, the design target is basically met, and meanwhile, the power amplifier greatly reduces the volume of the power amplifier by using a new design thought on the structure, and lays a foundation for the miniaturization design of the power amplifier of the whole machine.
Another aspect of the present invention provides a communication device, which includes the power amplifier described above, and the detailed structure of the power amplifier can refer to the related description, which is not repeated herein. Those skilled in the art will appreciate that the above-mentioned communication device may be any device applied to the power amplifier for power amplifier current detection and alarm in the communication system.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (10)
1. The power amplifier is characterized by comprising a radio frequency circuit and a control circuit, wherein the control circuit comprises a power supply sequential circuit and a temperature protection circuit;
the radio frequency circuit is used for amplifying and outputting an input radio frequency signal;
the output end of the power supply sequential circuit is electrically connected with the differential input end of the radio frequency circuit so as to provide direct current bias and sequential protection for the radio frequency circuit;
the output end of the temperature protection circuit is electrically connected with the input end of the power supply sequential circuit and used for disconnecting the power supply sequential circuit from the radio frequency circuit when the temperature of the power amplifier exceeds a preset threshold value.
2. The power amplifier of claim 1, wherein the control circuit further comprises a current monitoring circuit and a voltage follower;
and the first output end of the current monitoring circuit is electrically connected with the input end of the power supply sequential circuit, and the second output end of the current monitoring circuit is electrically connected with the input end of the voltage follower and used for monitoring the working current of the power amplifier in real time.
3. The power amplifier of claim 2, wherein an input of the current monitoring circuit is electrically connected to an output of the temperature protection circuit.
4. The power amplifier of claim 3, wherein the temperature protection circuit employs a temperature switch.
5. The power amplifier of claim 4, wherein the temperature switch is a normally closed temperature switch.
6. The power amplifier according to any one of claims 1 to 5, further comprising a box body and a circuit board, wherein a containing cavity is arranged in the box body, and the control circuit is arranged on the circuit board;
the radio frequency circuit is arranged in the accommodating cavity, and the circuit board covers the box body to provide a radio frequency shielding body for the radio frequency circuit.
7. The power amplifier of any one of claims 1 to 5, wherein the radio frequency circuit comprises a pre-stage block, a driver stage block, a power divider, a first final stage block, a second final stage block, and a combiner;
the input end of the driving stage module is electrically connected with the output end of the preceding stage module, and the output end of the driving stage module is electrically connected with the input end of the power divider;
a first output end of the power divider is electrically connected with an input end of the first final-stage module, and a second output end of the power divider is electrically connected with an input end of the second final-stage module;
the output end of the first final stage module is electrically connected with the first input end of the synthesizer, and the output end of the second final stage module is electrically connected with the second input end of the synthesizer;
and the output end of the power supply sequential circuit is electrically connected with the differential input ends of the preceding stage module, the driving stage module, the first final stage module and the second final stage module respectively.
8. The power amplifier of claim 7, wherein the radio frequency circuit further comprises an equalizer, a first attenuator, and a second attenuator;
the input end of the equalizer is electrically connected with the output end of the preceding stage module, and the output end of the equalizer is electrically connected with the input end of the first attenuator;
the output end of the first attenuator is electrically connected with the input end of the driving stage module;
the input end of the second attenuator is electrically connected with the output end of the driving stage module, and the output end of the second attenuator is electrically connected with the input end of the power divider.
9. The power amplifier of claim 7, wherein the power supply timing circuit comprises a timing module, a first power module, a second power module, a third power module, and a fourth power module;
the input end of the time sequence module is used for being electrically connected with a voltage end, the first output end of the time sequence module is electrically connected with the input end of the first power supply module, and the output end of the first power supply module is electrically connected with the differential input end of the preceding stage module;
a second output end of the timing sequence module is electrically connected with a first differential input end of the driving stage module, and an output end of the second power supply module is electrically connected with a second differential input end of the driving stage module;
a third output end of the timing module is electrically connected with a first differential input end of the first final stage module, and an output end of the third power supply module is electrically connected with a second differential input end of the first final stage module;
a fourth output end of the timing module is electrically connected with a first differential input end of the second last-stage module, and an output end of the fourth power supply module is electrically connected with a second differential input end of the second last-stage module;
and the enabling output end of the time sequence module is electrically connected with the enabling input ends of the second power supply module, the third power supply module and the fourth power supply module respectively.
10. A communication device comprising a power amplifier as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110727030.2A CN113381706A (en) | 2021-06-29 | 2021-06-29 | Power amplifier and communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110727030.2A CN113381706A (en) | 2021-06-29 | 2021-06-29 | Power amplifier and communication equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113381706A true CN113381706A (en) | 2021-09-10 |
Family
ID=77579996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110727030.2A Pending CN113381706A (en) | 2021-06-29 | 2021-06-29 | Power amplifier and communication equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113381706A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070103006A1 (en) * | 2005-11-09 | 2007-05-10 | Mitsubishi Denki Kabushiki Kaisha | Abnormality detection apparatus for a power feed circuit |
| CN102570412A (en) * | 2011-12-29 | 2012-07-11 | 航天时代电子技术股份有限公司 | DC solid-state power controller |
| CN103956979A (en) * | 2014-04-01 | 2014-07-30 | 京信通信技术(广州)有限公司 | Power supply control device for power amplifier tube and power-on and power-off control method thereof |
| CN110098809A (en) * | 2019-05-13 | 2019-08-06 | 大唐终端技术有限公司 | A kind of gallium nitride power amplifier timing protection power supply unit |
| CN111385017A (en) * | 2020-03-10 | 2020-07-07 | 四川灵通电讯有限公司 | KA frequency band high-power amplifier and implementation method thereof |
| CN212873238U (en) * | 2020-02-24 | 2021-04-02 | 四川中久防务科技有限公司 | Multichannel modular monitoring system |
-
2021
- 2021-06-29 CN CN202110727030.2A patent/CN113381706A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070103006A1 (en) * | 2005-11-09 | 2007-05-10 | Mitsubishi Denki Kabushiki Kaisha | Abnormality detection apparatus for a power feed circuit |
| CN102570412A (en) * | 2011-12-29 | 2012-07-11 | 航天时代电子技术股份有限公司 | DC solid-state power controller |
| CN103956979A (en) * | 2014-04-01 | 2014-07-30 | 京信通信技术(广州)有限公司 | Power supply control device for power amplifier tube and power-on and power-off control method thereof |
| CN110098809A (en) * | 2019-05-13 | 2019-08-06 | 大唐终端技术有限公司 | A kind of gallium nitride power amplifier timing protection power supply unit |
| CN212873238U (en) * | 2020-02-24 | 2021-04-02 | 四川中久防务科技有限公司 | Multichannel modular monitoring system |
| CN111385017A (en) * | 2020-03-10 | 2020-07-07 | 四川灵通电讯有限公司 | KA frequency band high-power amplifier and implementation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 吴洪江 等 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105811895B (en) | High efficiency K-band MMIC power amplifiers are optimized based on harmonic termination | |
| CN101526564A (en) | Detection device for power and standing wave ratio | |
| CN107612516A (en) | Broadband numerical control Low Noise Variable Gain Amplifier | |
| CN111327277A (en) | S-band GaN MMIC low-noise amplifier | |
| CN102291091B (en) | Linear microwave power amplifier | |
| CN203734624U (en) | High-performance microstrip multistage low-noise amplifier | |
| CN112636697B (en) | Doherty power amplifier with deep back-off interval | |
| CN113098403A (en) | Ultra-wideband low-current drive amplifier based on GaAs pHEMT process | |
| CN113381706A (en) | Power amplifier and communication equipment | |
| CN109150228B (en) | Amplitude limiting amplification and output signal monitoring control module | |
| CN109639246A (en) | A kind of X-band 300w pulse power module | |
| CN111683027B (en) | Satellite up-converter based on intermediate frequency analog predistortion | |
| CN201260150Y (en) | C wave band power amplifier | |
| CN105680804B (en) | Mismatch type low-noise amplifier between K-band grade | |
| CN209030191U (en) | It is a kind of for minimizing the radio circuit of ODU transmission channel | |
| CN210327509U (en) | Novel reverse doherty amplifier | |
| CN107493079A (en) | Ku wave band automatic biasing low-noise amplifiers | |
| Jiang et al. | An X-band Low Noise Amplifier in 0.25-$\mu\mathrm {m} $ GaAs pHEMT Process | |
| CN210327508U (en) | Power amplification unit based on 3dB electrical bridge | |
| Probst et al. | High frequency power amplifier for wideband wireless communication systems | |
| CN104917470A (en) | Broadband high-power power amplifier module | |
| CN204168250U (en) | A kind of LTCC power amplifier module | |
| CN214799423U (en) | Ultra-wideband low-current drive amplifier | |
| CN115378368B (en) | Ultra-wideband solid-state power amplifier | |
| US8581662B2 (en) | Amplifying system |
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 |
Application publication date: 20210910 |
|
| RJ01 | Rejection of invention patent application after publication |