CN108964623A - The radio-frequency power amplifier and its main circuit of one kind of multiple power modes - Google Patents
The radio-frequency power amplifier and its main circuit of one kind of multiple power modes Download PDFInfo
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- CN108964623A CN108964623A CN201811229442.8A CN201811229442A CN108964623A CN 108964623 A CN108964623 A CN 108964623A CN 201811229442 A CN201811229442 A CN 201811229442A CN 108964623 A CN108964623 A CN 108964623A
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- power amplifier
- power
- main circuit
- radio
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- 230000003321 amplification Effects 0.000 claims abstract description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 4
- 239000003990 capacitor Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000001413 cellular effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
Classifications
-
- 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
- H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
The present invention provides the radio-frequency power amplifier and its main circuit of one kind of multiple power modes.The radio-frequency power amplifier main circuit of the multiple power mode includes the first power amplifier, the second power amplifier, third power amplifier, attenuator, wherein, first power amplifier and attenuator are connected in parallel, second power amplifier and third power amplifier are connected in parallel, the two is connected again, one end of the first power amplifier connects rf inputs after series connection, and one end of the second power amplifier connects RF output end.The present invention can save the chip area of the radio-frequency power amplifier of multiple power mode, increase the integrated level of radio frequency power amplification modules, reduce the energy consumption and cost of radio frequency power amplification modules.
Description
Technical field
The present invention relates to radio-frequency power amplifier fields, and in particular to the radio-frequency power amplifier of one kind of multiple power modes
And its main circuit.
Background technique
NB-IoT (Narrow Band Internet of Things, narrowband Internet of Things) is one of all things on earth internet
Important branch.NB-IoT is implemented in cellular network, only consumes the bandwidth of about 180KHz, can be deployed directly into GSM network
(Global System for Mobile Communications, global system for mobile communications), UMTS network (Universal
Mobile Telecommunications System, Universal Mobile Telecommunications System) or LTE network (Long Term
Evolution, long term evolution), to reduce lower deployment cost, realize smooth upgrade.
NB-IoT is the emerging technology in one, the field IoT, and low power consuming devices is supported to connect in the cellular data of wide area network,
It is regarded as low-power consumption wide area network (LPWAN).NB-IoT supports that stand-by time is long, connecting to the efficient of network connectivity requirements higher device
It connects.It is said that the NB-IoT device battery service life can be improved at least 10 years, while can also provide very comprehensive indoor cellular data
Connection covering.
In radio-frequency power amplifier, by taking NB-IOT radio-frequency power amplifier as an example, the power consumption of radio-frequency power amplifier
Be it is very big, in order to extend battery use the time, generally require radio-frequency power amplifier work in different power modes.?
When signal is weaker, radio-frequency power amplifier can work in high-power mode to guarantee communication quality.Otherwise work as signal
When very strong, radio-frequency power amplifier, which can then work, reduces power consumption at low power modes.It also needs in some cases
Power amplifier is allowed to provide evanescent mode to meet system requirements.
Solution traditional at present is to design a plurality of radio frequency link and increase switching circuit in input/output port
It realizes.High-power mode starts high power power amplifier chain, and low-power mode starts low-power power amplifier chain, declines
Size reduction mode is then realized by switching circuit and attenuation network.The size that will increase radio-frequency power amplifier is done so, is occupied
The volume of more radio-frequency power amplifier modules, the power consumption of increasing RF power amplifier module, this puts NB-IOT power
Big device module low-power consumption high integration is very unfavorable.
Summary of the invention
In view of the above-mentioned problems, a kind of quasi- radio-frequency power amplifier and its main electricity for proposing new multiple power mode of the present invention
Road a, so that radio frequency link realizes 3 kinds of power modes, without needing three radio frequency links as traditional solution.
The embodiment of the invention provides the radio-frequency power amplifier main circuits of one kind of multiple power modes, including the first power
Amplifier, the second power amplifier, third power amplifier, attenuator, in which: first power amplifier and the decaying
Device is connected in parallel, and second power amplifier and third power amplifier are connected in parallel, and the two is connected again, the first function after series connection
One end of rate amplifier connects rf inputs, and one end of the second power amplifier connects RF output end.
Further, the function of first power amplifier, the third power amplifier, second power amplifier
Rate successively increases.
Further, first power amplifier, second power amplifier, the third power amplifier are opened
It closes and is controlled by control circuit.
Further, the main circuit operating mode include high-power mode, low-power mode, evanescent mode at least one
Kind.
Further, in high-power mode, first function is opened in the control circuit control for the main circuit work
Rate amplifier, second power amplifier, the third power amplifier.
Further, in low-power mode, first function is opened in the control circuit control for the main circuit work
Rate amplifier, the third power amplifier close second power amplifier.
Further, wherein first power amplifier is for driving second power amplifier or/and described the
Three power amplifiers.
Further, in evanescent mode, first power is closed in the control circuit control for the main circuit work
Amplifier, second power amplifier, open the third power amplifier, and it is defeated to adjust the radio frequency by the attenuator
The output power of outlet.
Further, the attenuator includes resistance R1, capacitor C1, the resistance R1 and the capacitor C1 series connection.
The embodiment of the present invention also provides the radio-frequency power amplifier of one kind of multiple power modes, including described above a variety of
The radio-frequency power amplifier main circuit of power mode.
The technical solution that the embodiment of the present invention provides, can save the core of the radio-frequency power amplifier of multiple power mode
Piece area increases the integrated level of radio-frequency power amplifier, reduces the energy consumption and cost of radio-frequency power amplifier.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the radio-frequency power amplifier main circuit composition schematic diagram of traditional one kind of multiple power modes；
Fig. 2 is that the radio-frequency power amplifier main circuit composition for one kind of multiple power modes that one embodiment of the invention provides shows
It is intended to；
Fig. 3 is the decaying of the radio-frequency power amplifier main circuit for one kind of multiple power modes that one embodiment of the invention provides
Device composition schematic diagram；
Fig. 4 is the radio-frequency power amplifier composition schematic diagram for one kind of multiple power modes that one embodiment of the invention provides.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below with reference to drawings and examples,
The specific embodiment progress of technical solution of the present invention in further detail, is clearly illustrated.However, specific implementations described below
Mode and embodiment are for illustrative purposes only, rather than limiting the invention.It only contains a part of the invention and implements
Example, instead of all the embodiments, the other embodiments that those skilled in the art obtain various change of the invention all belong to
In the scope of protection of the invention.
Although it should be understood that the first, second, third, etc. term can be used in this article be used to describe various elements or
Component, but these elements or component should not be limited by these terms.These terms only to distinguish an element or component with
Another element or component.Therefore, the first element or component of following the discussion, holds within the present invention not departing from, is referred to alternatively as
Second element or the second component.
Fig. 1 is the radio-frequency power amplifier main circuit composition schematic diagram of traditional one kind of multiple power modes, including input
Switch 15, the first power amplifier 11, the second power amplifier 12, third power amplifier 13, attenuator 14, output switch
16。
As shown in Figure 1, the first power amplifier 11 and the second power amplifier 12 series connection after with third power amplifier 13,
Attenuator 14 is in parallel, and one end connects input switch 15, other end connection output switch 16 after parallel connection.The other end of input switch 15
It is connect with rf inputs, the other end of output switch 16 connects RF output end.
In traditional solution, radiofrequency signal is inputted from rf inputs, switches radio frequency by an input switch
Link.Main circuit operating mode includes at least one of high-power mode, low-power mode, evanescent mode.
High-power mode opens the first power amplifier 11 and 12 link of the second power amplifier.Input is generally operational in penetrate
When frequency signal is weaker, at this point, radio-frequency power amplifier can work in high-power mode to guarantee communication quality.
Low-power opens 13 link of third power amplifier.Be generally operational in input radio frequency signal it is very strong when, at this point,
Radio-frequency power amplifier can work at low power modes to reduce power consumption.
Evanescent mode opens 14 link of attenuator, and output is switched over by an output switch again.Radio frequency is allowed to meet
Power amplifier provides evanescent mode come the case where meeting system requirements.
Since traditional solution needs three radio frequency links, the size of radio-frequency power amplifier will increase, occupy more
The volume of radio-frequency power amplifier module, the power consumption of increasing RF power amplifier module, this is low for power amplifier module
Power consumption high integration is very unfavorable.
Fig. 2 is that the radio-frequency power amplifier main circuit composition for one kind of multiple power modes that one embodiment of the invention provides shows
It is intended to.
As shown in Fig. 2, the main circuit is applied in NB-IOT radio-frequency power amplifier front end, including the first power amplifier
21, the second power amplifier 22, third power amplifier 23, attenuator 24.Wherein the first power amplifier 21 and attenuator 24
It is connected in parallel, the second power amplifier 22 and third power amplifier 23 are connected in parallel, and the two is connected again, the first power after series connection
One end of amplifier 21 connects rf inputs, and one end of the second power amplifier 22 connects RF output end.
First power amplifier 21, third power amplifier 23, the second power amplifier 22 power successively increase.First
The opening and closing of power amplifier 21, the second power amplifier 22, third power amplifier 23 is controlled by control circuit.
The radio-frequency power amplifier main circuit operating mode of multiple power mode include high-power mode, low-power mode,
At least one of evanescent mode, specific power bracket are divided according to actual needs.
Main circuit works in high-power mode, and the first power amplifier 21 is opened in control circuit control, the second power is put
Big device 22, third power amplifier 23.First power amplifier 21 is for driving the second power amplifier 22 and third power to put
Big device 23.
Main circuit works in low-power mode, and the first power amplifier 21 is opened in control circuit control, third power is put
Big device 23, closes the second power amplifier 22.First power amplifier 21 is for driving third power amplifier 23.
Main circuit works in evanescent mode, and the first power amplifier 21, the second power amplification are closed in control circuit control
Device 22 opens third power amplifier 23, and the output power of RF output end is adjusted by attenuator 24.
This main circuit can save the chip area of radio-frequency power amplifier, increase the integrated of radio-frequency power amplifier
Degree, reduces the energy consumption of radio-frequency power amplifier, reduces the cost of radio-frequency power amplifier.It is particularly suitable for NB-IOT radio-frequency power
Amplifier.
Fig. 3 is the decaying of the radio-frequency power amplifier main circuit for one kind of multiple power modes that one embodiment of the invention provides
Device composition schematic diagram.
Attenuator 24 includes resistance R1, capacitor C1, and composition RC attenuator circuit is connected in series in resistance R1 and capacitor C1.
Fig. 4 is the radio-frequency power amplifier composition schematic diagram for one kind of multiple power modes that one embodiment of the invention provides.
The radio-frequency power amplifier 2 of the multiple power mode includes the main circuit of above-mentioned Fig. 2.
It should be noted that each embodiment above by reference to described in attached drawing is only to illustrate the present invention rather than limits this
The range of invention, those skilled in the art should understand that, it is right under the premise without departing from the spirit and scope of the present invention
The modification or equivalent replacement that the present invention carries out, should all cover within the scope of the present invention.In addition, signified unless the context
Outside, the word occurred in the singular includes plural form, and vice versa.In addition, unless stated otherwise, then any embodiment
All or part of in combination with any other embodiment all or part of come using.
Claims (10)
1. the radio-frequency power amplifier main circuit of one kind of multiple power modes, including the first power amplifier, the second power amplification
Device, third power amplifier, attenuator, in which:
First power amplifier and the attenuator are connected in parallel, second power amplifier and third power amplifier
It is connected in parallel, the two is connected again, and one end of the first power amplifier connects rf inputs after series connection, the second power amplifier
One end connects RF output end.
2. main circuit according to claim 1, wherein first power amplifier, the third power amplifier, institute
The power for stating the second power amplifier successively increases.
3. main circuit according to claim 1, wherein first power amplifier, second power amplifier, institute
The opening and closing for stating third power amplifier is controlled by control circuit.
4. main circuit according to claim 3, wherein the main circuit operating mode includes high-power mode, low-power
Mode, at least one of evanescent mode.
5. main circuit according to claim 4, wherein the main circuit work is in high-power mode, the control electricity
First power amplifier, second power amplifier, the third power amplifier are opened in road control.
6. main circuit according to claim 4, wherein the main circuit work is in low-power mode, the control electricity
First power amplifier, the third power amplifier are opened in road control, close second power amplifier.
7. main circuit according to claim 5 or 6, wherein first power amplifier is for driving second function
Rate amplifier or/and the third power amplifier.
8. main circuit according to claim 4, wherein the main circuit work is in evanescent mode, the control circuit
First power amplifier, second power amplifier are closed in control, the third power amplifier are opened, by described
Attenuator adjusts the output power of the RF output end.
9. main circuit according to claim 1, wherein the attenuator include resistance R1, capacitor C1, the resistance R1 with
The capacitor C1 is connected in series.
10. the radio-frequency power amplifier of one kind of multiple power modes, including the described in any item multiple powers of claim 1 to 9
The radio-frequency power amplifier main circuit of mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811229442.8A CN108964623A (en) | 2018-10-22 | 2018-10-22 | The radio-frequency power amplifier and its main circuit of one kind of multiple power modes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811229442.8A CN108964623A (en) | 2018-10-22 | 2018-10-22 | The radio-frequency power amplifier and its main circuit of one kind of multiple power modes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108964623A true CN108964623A (en) | 2018-12-07 |
Family
ID=64480998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811229442.8A Pending CN108964623A (en) | 2018-10-22 | 2018-10-22 | The radio-frequency power amplifier and its main circuit of one kind of multiple power modes |
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| Country | Link |
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| CN (1) | CN108964623A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109541442A (en) * | 2019-01-02 | 2019-03-29 | 珠海格力电器股份有限公司 | The adjustable sample circuit of precision and measuring device |
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|---|---|---|---|---|
| CN1154610A (en) * | 1995-11-24 | 1997-07-16 | 松下电器产业株式会社 | Transmitter power varying device having bypass line for power amplifier |
| US6069526A (en) * | 1998-08-04 | 2000-05-30 | Qualcomm Incorporated | Partial or complete amplifier bypass |
| US6233438B1 (en) * | 1998-03-26 | 2001-05-15 | Ericsson Inc. | Wide-range power control systems and methods for radio frequency transmitters and mobile radiotelephones |
| KR20020008865A (en) * | 2000-07-20 | 2002-02-01 | 윤종용 | Apparatus for controlling a power level of transmission signal and method in a mobile telecommunication terminal |
| CN1433145A (en) * | 2002-01-15 | 2003-07-30 | M/A－Com尤罗泰克公司 | Changeable power amplifier |
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| US20130241657A1 (en) * | 2012-03-14 | 2013-09-19 | Postech Academy-Industry Foundation | Multi-mode doherty power amplifier |
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| CN108649973A (en) * | 2018-03-14 | 2018-10-12 | 湖北楚航电子科技有限公司 | A kind of multichannel number transmission transmitter and combined type number pass emitter |
| CN209184566U (en) * | 2018-10-22 | 2019-07-30 | 深圳飞骧科技有限公司 | The radio-frequency power amplifier and its main circuit of one kind of multiple power modes |
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2018
- 2018-10-22 CN CN201811229442.8A patent/CN108964623A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1154610A (en) * | 1995-11-24 | 1997-07-16 | 松下电器产业株式会社 | Transmitter power varying device having bypass line for power amplifier |
| US6233438B1 (en) * | 1998-03-26 | 2001-05-15 | Ericsson Inc. | Wide-range power control systems and methods for radio frequency transmitters and mobile radiotelephones |
| US6069526A (en) * | 1998-08-04 | 2000-05-30 | Qualcomm Incorporated | Partial or complete amplifier bypass |
| KR20020008865A (en) * | 2000-07-20 | 2002-02-01 | 윤종용 | Apparatus for controlling a power level of transmission signal and method in a mobile telecommunication terminal |
| CN1433145A (en) * | 2002-01-15 | 2003-07-30 | M/A－Com尤罗泰克公司 | Changeable power amplifier |
| US20080218270A1 (en) * | 2007-03-07 | 2008-09-11 | Gary Hau | Multi-mode power amplifier with low gain variation over temperature |
| US20130241657A1 (en) * | 2012-03-14 | 2013-09-19 | Postech Academy-Industry Foundation | Multi-mode doherty power amplifier |
| CN102969989A (en) * | 2012-11-26 | 2013-03-13 | 贵州中科汉天下电子有限公司 | Power synthesis device of radio frequency power amplifier |
| CN105680801A (en) * | 2016-01-08 | 2016-06-15 | 合肥雷诚微电子有限公司 | Multimode power amplifier capable of dissipating heat in balance and application of multimode power amplifier |
| CN108649973A (en) * | 2018-03-14 | 2018-10-12 | 湖北楚航电子科技有限公司 | A kind of multichannel number transmission transmitter and combined type number pass emitter |
| CN209184566U (en) * | 2018-10-22 | 2019-07-30 | 深圳飞骧科技有限公司 | The radio-frequency power amplifier and its main circuit of one kind of multiple power modes |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109541442A (en) * | 2019-01-02 | 2019-03-29 | 珠海格力电器股份有限公司 | The adjustable sample circuit of precision and measuring device |
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