CN111817671B - Radio frequency power amplifier suitable for high-speed and broadband wave bands - Google Patents
Radio frequency power amplifier suitable for high-speed and broadband wave bands Download PDFInfo
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- CN111817671B CN111817671B CN202010713308.6A CN202010713308A CN111817671B CN 111817671 B CN111817671 B CN 111817671B CN 202010713308 A CN202010713308 A CN 202010713308A CN 111817671 B CN111817671 B CN 111817671B
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- 239000003990 capacitor Substances 0.000 claims description 42
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000004891 communication Methods 0.000 description 17
- 230000001105 regulatory effect Effects 0.000 description 9
- 230000003321 amplification Effects 0.000 description 7
- 238000003199 nucleic acid amplification method Methods 0.000 description 7
- 238000010295 mobile communication Methods 0.000 description 6
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- 230000010354 integration Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 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
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- 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
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a radio frequency power amplifier suitable for high-speed and broadband wave bands, which comprises a signal input end, two amplifying circuits connected in parallel with the signal input end, a rear end phase adjusting circuit electrically connected with the two amplifying circuits respectively, a controller and a signal output end connected with the rear end phase adjusting circuit, wherein an output signal is converted into two groups of four signals with phase difference of approximately 180 degrees through the two amplifying circuits connected in parallel, and the two signals with the phase difference of closest 180 degrees are selected and then pass through the rear end phase adjusting circuit, so that the linear power of the output signal is greatly improved, and meanwhile, the energy consumption and the heat dissipation problems are simultaneously considered.
Description
Technical Field
The invention relates to a radio frequency power amplifier suitable for high-speed and broadband wave bands.
Background
The satellite mobile communication is not limited by regional space, can provide a large-range and long-distance mobile communication service for users, and can effectively make up for the defects of a ground mobile communication system, and particularly has unique superiority in the aspects of remote mountain areas, islands, natural disaster areas, ocean vessels and the like. For the characteristics of various terrains, wide territories and uneven population distribution in China, the development of satellite communication is a necessary requirement for the development of the communication industry, and particularly under the condition that the trend of new generation communication (5G communication) is going to come up, the satellite communication needs to keep pace with the development requirement of the 5G ground communication technology, so that a novel mobile communication mode with wide coverage area, flexible networking and integration of the world network is formed. Through development and application of each communication frequency band, the resources of the low frequency band cannot meet the increasingly high development demands, the high frequency band such as Ku, K, KA frequency band and the like has the advantages of wide frequency band, high speed and other resources, the development demands of the new generation millimeter wave communication are met, and satellite communication is gradually transited from the earlier C wave band to the Ku and Ka wave bands.
The Power Amplifier (PA) is one of the key devices in the transceiver module (T/R) of the mobile communication system, and directly relates to the overall performance of the communication system. In a communication transceiver system, a power amplification module is generally located at the end of a transmitter, and functions to amplify a signal processed by the system and transmit the signal through an antenna. Aiming at different application scenes, the power amplification module needs to achieve different technical indexes such as output power, linearity, efficiency and the like to ensure that signals can be safely, effectively and reliably received at a proper distance. With the development of new generation mobile communication, the radio frequency front end module is developed towards miniaturization, high integration and low power consumption, and the hot application such as millimeter wave communication, satellite communication system and phased array radar system is in particular in need of higher requirements on the size, weight, heat dissipation and the like of the power amplification module. The design of Ku band power amplification modules presents a greater challenge than earlier 2G, 3G communication systems. On the one hand, the realization of larger bandwidth is required while providing high output power in a satellite communication system; on the other hand, in order to improve portability of the communication device and reduce cost thereof, how the Ku band power amplification module can simultaneously take into account energy consumption and heat dissipation is a problem which needs to be solved at present.
Disclosure of Invention
The invention aims to provide a radio frequency power amplifier suitable for a high-speed and broadband wave band.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a be applicable to high-speed, broadband radio frequency power amplifier, its includes signal input part, two amplifier circuit that connects in parallel with signal input part, with the back end phase regulating circuit that two amplifier circuits are connected respectively, controller and with the signal output part that back end phase regulating circuit is connected, every amplifier circuit include front end phase regulating circuit, the input with the amplifier module that front end phase regulating circuit two output are connected respectively, the phase detector that is connected with the output of every amplifier module respectively, connect in two amplifier circuits respectively one of them first selector switch and the second selector switch that connects between two amplifier circuit each one of them another amplifier module, first selector switch and second selector switch respectively with back end phase regulating circuit is connected respectively, every amplifier circuit the front end phase regulating circuit divide into two signals respectively input two amplifier modules, after the phase detector, input to the controller, by the phase difference signal of controller output phase difference between two phase regulating circuits to two-input ends again.
In another preferred mode, each front-end phase adjusting circuit comprises a first polar capacitor, a first inductor, a second polar capacitor and a second inductor which are sequentially connected to form a closed loop, the positive electrode of the first polar capacitor is connected with one end of the first inductor, the connection point is a first connection point, the positive electrode of the second polar capacitor is connected with the other end of the first inductor, the connection point is a second connection point, two ends of the second inductor are respectively connected with the negative electrodes of the first polar capacitor and the second polar capacitor, the two connection points are respectively a third connection point and a second connection point, the signal input end is connected to the first connection point, and the input ends of each amplifying module are respectively connected with the third connection point and the fourth connection point.
In another preferred mode, the input ends of the two amplifying modules of each amplifying circuit are respectively connected with the input ends of the first phase detector and the second phase detector, the phase detector transmits the phases of the received electric signals to the controller, and the controller compares the phases of the electric signals and transmits the two electric signals with the phase difference closest to 180 degrees to the back-end phase adjusting circuit respectively.
In another preferred mode, the back-end phase adjusting circuit includes a third polar capacitor, a third inductor, a fourth polar capacitor and a fourth inductor which are sequentially connected to form a closed loop, the positive electrode of the third polar capacitor is connected with one end of the third inductor, the connection point is a fifth connection point, the positive electrode of the fourth polar capacitor is connected with the other end of the third inductor, the connection point is a sixth connection point, two ends of the fourth inductor are respectively connected with the negative electrodes of the third polar capacitor and the fourth polar capacitor, the two connection points are respectively a seventh connection point and a sixth connection point, the signal output end is connected to an eighth connection point, the output ends of the two phase detectors are respectively connected to a first selection switch and a second selection switch, and the two selection switches are respectively connected with the seventh connection point and the sixth connection point.
The invention has the beneficial effects that: the output signals are converted into two groups of four signals with phase difference close to 180 degrees through the two amplifying circuits connected in parallel, the two signals with phase difference closest to 180 degrees are selected and then pass through the rear-end phase adjusting circuit, so that the linear power of the output signals is greatly improved, and meanwhile, the energy consumption and heat dissipation problems are simultaneously considered.
Drawings
Fig. 1 is a circuit diagram of the present invention.
Detailed Description
In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.
In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.
In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature. It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
As shown in fig. 1, the radio frequency power amplifier suitable for high-speed and broadband band comprises a signal input terminal Pin, two amplifying circuits connected in parallel with the signal input terminal Pin, a back-end phase adjusting circuit electrically connected with the two amplifying circuits respectively, a controller and a signal output terminal Pout connected with the back-end phase adjusting circuit.
Each amplifying circuit comprises a front-end phase adjusting circuit, amplifying modules, a phase detector and a first selection switch, wherein the input ends of the amplifying modules are respectively and electrically connected with the two output ends of the front-end phase adjusting circuit, the phase detector is electrically connected with the output end of each amplifying module, the first selection switch is connected between one amplifying module of each of the two amplifying circuits, the second selection switch is connected between the other amplifying module of each of the two amplifying circuits, the first selection switch and the second selection switch are respectively and electrically connected with the rear-end phase adjusting circuit, the front-end phase adjusting circuit of each amplifying circuit divides an input signal into two paths of signals, the two paths of signals are respectively input into the two amplifying modules, the two paths of signals are input into the controller after passing through the phase detector, and the controller outputs two paths of signals with the phase difference closest to 180 degrees and then inputs the two paths of signals into the rear-end phase adjusting circuit.
The front-end phase adjusting circuit comprises a first polar capacitor C11, a first inductor L11, a second polar capacitor C12 and a second inductor L12 which are sequentially connected to form a closed loop, wherein the positive electrode of the first polar capacitor C11 is connected with one end of the first inductor L11, the connecting point is a first connecting point a, the positive electrode of the second polar capacitor C12 is connected with the other end of the first inductor L11, the connecting point is a second connecting point b, the two ends of the second inductor L12 are respectively connected with the negative electrodes of the first polar capacitor C11 and the second polar capacitor C12, the two connecting points are respectively a third connecting point C and a fourth connecting point d, the signal input end Pin is connected to the first connecting point a, the input ends of each amplifying circuit first amplifying module PA11 and each amplifying circuit second amplifying module PA12 are respectively connected with the third connecting point C and the second connecting point b, and the fourth connecting point d is grounded. The input ends of the first amplifying module PA11 and the second amplifying module PA12 are respectively connected with the input ends of the first phase detector PC11 and the second phase detector PC12, the phase detector transmits the phases of the received electric signals to the controller MCU, and the controller MCU compares the phases of the electric signals and transmits two electric signals with the phase difference closest to 180 ° to the back-end phase adjusting circuit respectively.
The other front-end phase adjusting circuit comprises a first polar capacitor C21, a first inductor L21, a second polar capacitor C22 and a second inductor L22 which are sequentially connected to form a closed loop, wherein the positive electrode of the first polar capacitor C21 is connected with one end of the first inductor L21, the connecting point is a first connecting point a, the positive electrode of the second polar capacitor C22 is connected with the other end of the first inductor L21, the connecting point is a second connecting point b, the two ends of the second inductor L22 are respectively connected with the negative electrodes of the first polar capacitor C21 and the second polar capacitor C22, the two connecting points are respectively a third connecting point C and a fourth connecting point d, the signal input end Pin is connected to the first connecting point a, the input ends of each amplifying circuit first amplifying module PA21 and each amplifying circuit second amplifying module PA22 are respectively connected with the third connecting point C and the second connecting point b, and the fourth connecting point d is grounded. The input ends of the first amplifying module PA21 and the second amplifying module PA22 are respectively connected with the input ends of the first phase detector PC21 and the second phase detector PC22, the phase detector transmits the phases of the received electric signals to the controller MCU, and the controller MCU compares the phases of the electric signals and transmits two electric signals with the phase difference closest to 180 ° to the back-end phase adjusting circuit respectively. The first amplification modules PA11 and PA21 and the second amplification modules PA12 and PA22 are provided with power sources Source11, source12, source21, and Source22, respectively.
The back-end phase adjusting circuit comprises a third polar capacitor C31, a third inductor L31, a fourth polar capacitor C32 and a fourth inductor L32 which are sequentially connected to form a closed loop, wherein the positive electrode of the third polar capacitor C31 is connected with one end of the third inductor L31, the connection point is a fifth connection point e, the positive electrode of the fourth polar capacitor C32 is connected with the other end of the third inductor L31, the connection point is a sixth connection point f, the two ends of the fourth inductor L32 are respectively connected with the negative electrodes of the third polar capacitor C31 and the fourth polar capacitor C32, the two connection points are respectively a seventh connection point g and an eighth connection point h, the signal output end Pout is connected to the eighth connection point h, the output ends of the first phase detector PC11 and the first phase detector PC21 are connected to the first selection switch K1, the output ends of the second phase detector PC12 and the second phase detector PC22 are connected to the second selection switch K2, the two selection switches are respectively connected with the seventh connection point g and the sixth connection point f, and the fifth connection point e is grounded.
The principle is as follows: the output signals are converted into two groups of four signals with the phase difference close to 180 degrees through two amplifying circuits connected in parallel, and the two signals with the phase difference closest to 180 degrees are selected and then are regulated into signals with the same phase through a rear-end phase regulating circuit and output.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (3)
1. A radio frequency power amplifier suitable for high-rate, broadband bands, characterized by: the phase detector is connected with the output end of each amplifying module, a first selection switch connected between one amplifying module of the two amplifying circuits and a second selection switch connected between the other amplifying module of the two amplifying circuits, wherein the first selection switch and the second selection switch are respectively and electrically connected with the back-end phase adjusting circuit, the front-end phase adjusting circuit of each amplifying circuit divides an input signal into two paths of signals which are respectively input into the two amplifying modules, the signals are input into the controller after passing through the phase detector, and the two paths of signals with the phase difference closest to 180 DEG are output by the controller and are input into the back-end phase adjusting circuit; the back-end phase adjusting circuit comprises a third polar capacitor, a third inductor, a fourth polar capacitor and a fourth inductor which are sequentially connected to form a closed loop, wherein the positive electrode of the third polar capacitor is connected with one end of the third inductor, the connecting point is a fifth connecting point, the positive electrode of the fourth polar capacitor is connected with the other end of the third inductor, the connecting point is a sixth connecting point, the two ends of the fourth inductor are respectively connected with the negative electrodes of the third polar capacitor and the fourth polar capacitor, the two connecting points are respectively a seventh connecting point and a sixth connecting point, the signal output end is connected to an eighth connecting point, the output ends of the two phase detectors are respectively connected to a first selector switch and a second selector switch, and the two selector switches are respectively connected with the seventh connecting point and the sixth connecting point.
2. The radio frequency power amplifier adapted for high-rate, broadband bands as set forth in claim 1, wherein: each front-end phase adjusting circuit comprises a first polar capacitor, a first inductor, a second polar capacitor and a second inductor which are sequentially connected to form a closed loop, wherein the positive electrode of the first polar capacitor is connected with one end of the first inductor, the connecting point is a first connecting point, the positive electrode of the second polar capacitor is connected with the other end of the first inductor, the connecting point is a second connecting point, two ends of the second inductor are respectively connected with the negative electrodes of the first polar capacitor and the second polar capacitor, the two connecting points are respectively a third connecting point and a second connecting point, the signal input end is connected to the first connecting point, and the input ends of each amplifying module are respectively connected with the third connecting point and the fourth connecting point.
3. The radio frequency power amplifier adapted for high-rate, broadband bands as set forth in claim 1, wherein: the input ends of the two amplifying modules of each amplifying circuit are respectively connected with the input ends of the first phase detector and the second phase detector, the phase detectors transmit the phases of the received electric signals to the controller, and the controller compares the phases of the electric signals and transmits the two electric signals with the phase difference closest to 180 degrees to the rear-end phase adjusting circuit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010713308.6A CN111817671B (en) | 2020-07-22 | 2020-07-22 | Radio frequency power amplifier suitable for high-speed and broadband wave bands |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010713308.6A CN111817671B (en) | 2020-07-22 | 2020-07-22 | Radio frequency power amplifier suitable for high-speed and broadband wave bands |
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| CN111817671A CN111817671A (en) | 2020-10-23 |
| CN111817671B true CN111817671B (en) | 2023-07-11 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108400774A (en) * | 2018-03-22 | 2018-08-14 | 上海唯捷创芯电子技术有限公司 | A kind of balanced type radio-frequency power amplifier, chip and communication terminal |
| CN111130587A (en) * | 2019-12-27 | 2020-05-08 | 上海大际电子科技有限公司 | Novel SC frequency channel broadband TR subassembly |
| CN210693883U (en) * | 2019-10-09 | 2020-06-05 | 广州中海达卫星导航技术股份有限公司 | Phase shift circuit, antenna device and signal processor |
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2020
- 2020-07-22 CN CN202010713308.6A patent/CN111817671B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108400774A (en) * | 2018-03-22 | 2018-08-14 | 上海唯捷创芯电子技术有限公司 | A kind of balanced type radio-frequency power amplifier, chip and communication terminal |
| CN210693883U (en) * | 2019-10-09 | 2020-06-05 | 广州中海达卫星导航技术股份有限公司 | Phase shift circuit, antenna device and signal processor |
| CN111130587A (en) * | 2019-12-27 | 2020-05-08 | 上海大际电子科技有限公司 | Novel SC frequency channel broadband TR subassembly |
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