CN115567016A - Two-stage differential power amplifier and radio frequency power amplifier module - Google Patents
Two-stage differential power amplifier and radio frequency power amplifier module Download PDFInfo
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- CN115567016A CN115567016A CN202211323752.2A CN202211323752A CN115567016A CN 115567016 A CN115567016 A CN 115567016A CN 202211323752 A CN202211323752 A CN 202211323752A CN 115567016 A CN115567016 A CN 115567016A
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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
- H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
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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
- H03F3/20—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
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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
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
- H03F3/4508—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using bipolar transistors as the active amplifying circuit
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Abstract
The invention discloses a two-stage differential power amplifier and a radio frequency power amplifier module, wherein the two-stage differential power amplifier comprises a signal input end, a driving-stage power unit, an amplifying-stage differential power unit, an output synthesis unit and a signal output end which are sequentially connected; the amplification stage differential power unit comprises a differential unit, a first final power unit, a second final power unit, a first capacitor and a second capacitor. The two-stage differential power amplifier can reduce the influence of the base-collector capacitance on the first final power unit and the second final power unit, thereby improving the circuit gain effect of the two-stage differential power amplifier.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of signal processing, in particular to a two-stage differential power amplifier and a radio frequency power amplifier module.
[ background of the invention ]
The 5G-NR is a global 5G standard based on a brand new aperture design of OFDM, in which the N77 frequency band and the N79 frequency band belong to higher frequency bands relative to the Sub-3G frequency band, so that they attenuate relatively quickly in the propagation process, the path loss is relatively large, and the coverage of a single carrier is limited. Therefore, in order to improve user experience and reduce the base station construction cost, 3GPP defines a new Power standard Power Class2 (PC 2), that is, the output Power of the wireless terminal device is improved by 3dB on the basis of the original Power Class3 (PC 3).
After the output power of the wireless terminal device is increased to PC2, it can reduce the propagation loss while compensating for the higher TDD frequency, and reduce the cost of base station construction, which is a win-win situation for the user experience and cost reduction.
However, when the circuit structure of the existing two-stage differential power amplifier works in a high frequency band of 5G-NR (N77 frequency band or N79 frequency band and higher millimeter wave frequency band), the overall gain effect of the circuit is generally low, and the application requirement of the current wireless system on the radio frequency power amplifier is difficult to meet.
The principle that the circuit gain effect of the two-stage differential power amplifier is low is as follows: in a circuit structure of the two-stage differential power amplifier, a first final stage power unit and a second final stage power unit usually operate in class AB, and a base-collector capacitance (Cbc) of a Heterojunction Bipolar Transistor (HBT) provides a feedback path in operation, which causes a significant reduction in gain effect of the two-stage differential power amplifier as an operating frequency increases.
[ summary of the invention ]
The invention aims to provide a two-stage differential power amplifier and a radio frequency power amplifier module, which are used for solving the problem of low circuit gain effect of the conventional two-stage differential power amplifier.
In a first aspect, the present invention provides a two-stage differential power amplifier, which includes a signal input terminal, a driving stage power unit, an amplifying stage differential power unit, an output synthesis unit, and a signal output terminal, which are connected in sequence;
the driving stage power unit is used for amplifying and outputting one path of single-ended signals received by the signal input end; the amplification stage differential power unit is used for receiving one path of the single-ended signal amplified by the driving stage power unit, converting the single-ended signal into two paths of differential signals, and respectively amplifying and outputting the two paths of differential signals; the output synthesis unit is used for synthesizing the two paths of differential signals converted and amplified by the amplification stage differential power unit into a single-ended signal and outputting the single-ended signal to the signal output end;
the amplification stage differential power unit comprises a differential unit, a first final power unit, a second final power unit, a first capacitor and a second capacitor; the first capacitor is connected in series between an input terminal of the first final power unit and an output terminal of the second final power unit, and the second capacitor is connected in series between the input terminal of the second final power unit and the output terminal of the first final power unit.
Preferably, the amplification stage differential power unit further comprises a first resistor and a second resistor; the first resistor is connected in series between the input terminal of the first final power unit and the first capacitor, and the second resistor is connected in series between the input terminal of the second final power unit and the second capacitor.
Preferably, the output synthesis unit comprises a first transformer, a third capacitor, a fourth capacitor and a fifth capacitor;
the first transformer includes a first primary coil and a first secondary coil, a first end of the first primary coil is used as a first input end of the output combining unit to be connected with the output end of the first final power unit, a second end of the first primary coil is used as a second input end of the output combining unit to be connected with the output end of the second final power unit, and a first end of the first secondary coil is used as an output end of the output combining unit to be connected with the signal output end;
a first end of the third capacitor is connected to a center tap of the first primary coil, and a second end of the third capacitor is grounded;
a first end of the fourth capacitor is connected to the center tap of the first primary coil, and a second end of the fourth capacitor is grounded;
the first end of the fifth capacitor is connected to the second end of the first secondary coil, and the second end of the fifth capacitor is grounded.
Preferably, the output synthesis unit further comprises a sixth capacitor and a third resistor; the sixth capacitor is connected in parallel between the first end and the second end of the first primary coil, and the third resistor is also connected in parallel between the first end and the second end of the first primary coil.
Preferably, the output combining unit further includes a resonant circuit connected to a first end of the first secondary coil.
Preferably, the resonant circuit comprises a seventh capacitor and an inductor; the first end of the seventh capacitor is connected to the first end of the first secondary coil, the first end of the inductor is connected to the second end of the seventh capacitor, and the second end of the inductor is grounded.
Preferably, the differential unit comprises a second transformer, an eighth capacitor, a ninth capacitor, a tenth capacitor and an eleventh capacitor;
the second transformer comprises a second primary coil and a second secondary coil, and a first end of the second primary coil is used as an input end of the amplification stage differential power unit and is connected with an output end of the driving stage power unit;
a first end of the eighth capacitor is connected to the first end of the second primary coil, and a second end of the eighth capacitor is grounded;
a first end of the ninth capacitor is connected to the second end of the second primary coil, and a second end of the ninth capacitor is grounded;
a first end of the tenth capacitor is connected to the second end of the second primary coil, and a second end of the tenth capacitor is grounded;
a first end of the eleventh capacitor is connected to the center tap of the second secondary coil, and a second end of the eleventh capacitor is grounded;
the input end of the first final power unit is connected with the first end of the second secondary coil, and the input end of the second final power unit is connected with the second end of the second secondary coil.
Preferably, the differential unit further comprises a fourth resistor; the fourth resistor is connected in parallel to the first and second terminals of the second primary coil.
Preferably, the driving stage power unit comprises a driving triode, a driving capacitor and a driving resistor;
a base electrode of the driving triode is used as an input end of the driving stage power unit and is connected with the signal input end, an emitting electrode of the driving triode is grounded, a collecting electrode of the driving triode is used as an output end of the driving stage power unit and is connected with an input end of the amplification stage differential power unit, the driving capacitor is connected between the base electrode of the driving triode and the signal input end in series, a first end of the driving resistor is connected to a first bias circuit, and a second end of the driving resistor is connected to the base electrode of the driving triode;
the circuit structure of the first final stage power unit is the same as that of the driving stage power unit; the first final power unit is configured to: a base electrode of the driving triode is used as an input end of the first final power unit to be connected with a first end of the second secondary coil, an emitting electrode of the driving triode is grounded, a collector electrode of the driving triode is used as an output end of the first final power unit to be connected with a first input end of the output synthesis unit, the driving capacitor is connected between the base electrode of the driving triode and a first end of the second secondary coil in series, a first end of the driving resistor is connected to a second bias circuit, and a second end of the driving resistor is connected to the base electrode of the driving triode;
the circuit structure of the second final stage power unit is the same as that of the driving stage power unit; the second final power unit: the base electrode of the driving triode is used as the input end of the second final power unit and is connected with the second end of the second secondary coil, the emitting electrode of the driving triode is grounded, the collecting electrode of the driving triode is used as the output end of the second final power unit and is connected with the second input end of the output synthesis unit, the driving capacitor is connected between the base electrode of the driving triode and the second end of the second secondary coil in series, the first end of the driving resistor is connected to a third bias circuit, and the second end of the driving resistor is connected to the base electrode of the driving triode.
In a second aspect, the present invention provides a radio frequency power amplifier module, which includes the two-stage differential power amplifier described above.
Compared with the prior art, the two-stage differential power amplifier has the advantages that the first capacitor is additionally arranged between the input end of the first final power unit and the output end of the second final power unit, the second capacitor is additionally arranged between the input end of the second final power unit and the output end of the first final power unit, so that two paths of radio frequency differential signals amplified by the first final power unit and the second final power unit can be supplemented to the output synthesis unit of the other path, the influence of the base-collector capacitance on the first final power unit and the second final power unit is reduced, and the circuit gain effect of the two-stage differential power amplifier is further improved.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
fig. 1 is a circuit diagram of a two-stage differential power amplifier according to an embodiment of the present invention.
100. A two-stage differential power amplifier; 1. an input matching circuit; 2. a driver stage power unit; 3. an amplifier stage differential power unit; 31. a difference unit; 32. a first final power unit; 33. a second final power unit; 4. an output synthesis unit; 5. a first bias circuit; 6. a second bias circuit; 7. a third bias circuit.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the present invention provides a two-stage differential power amplifier 100, which is shown in fig. 1 and includes a signal input end RFin, a driving stage power unit 2, an amplifying stage differential power unit 3, an output synthesis unit 4, and a signal output end RFout, which are connected in sequence.
The driving stage power unit 2 is used for amplifying and outputting one path of single-ended signal received by the signal input end RFin; the amplification stage differential power unit 3 is used for receiving one path of single-ended signal amplified by the driving stage power unit 2, converting the single-ended signal into two paths of differential signals, and respectively amplifying and outputting the two paths of differential signals; the output synthesis unit 4 is configured to synthesize the two paths of differential signals converted and amplified by the amplifier stage differential power unit 3 into a single-ended signal and output the single-ended signal to the signal output terminal RFout.
The amplifier stage differential power unit 3 includes a differential unit 31, a first final stage power unit 32, a second final stage power unit 33, a first capacitor C04, and a second capacitor CO5; a first capacitor C04 is connected in series between the input terminal of the first final stage power unit 32 and the output terminal of the second final stage power unit 33, and a second capacitor CO5 is connected in series between the input terminal of the second final stage power unit 33 and the output terminal of the first final stage power unit 32.
In this embodiment, the driving stage power unit 2 includes a driving transistor (not shown), a driving capacitor (not shown), and a driving resistor (not shown).
The base electrode of the driving triode is used as the input end of the driving stage power unit 2 and is connected with the signal input end RFin, the emitting electrode of the driving triode is grounded, the collecting electrode of the driving triode is used as the output end of the driving stage power unit 2 and is connected with the input end of the amplification stage differential power unit 3, the driving capacitor is connected between the base electrode of the driving triode and the signal input end RFin in series, the first end of the driving resistor is connected to the first bias circuit 5, and the second end of the driving resistor is connected to the base electrode of the driving triode.
In this embodiment, the amplification stage differential power unit 3 further includes a first resistor R02 and a second resistor R03; the first resistor R02 is connected in series between the input terminal of the first final stage power unit 32 and the first capacitor C04, and the second resistor R03 is connected in series between the input terminal of the second final stage power unit 33 and the second capacitor CO 5.
The first resistor R02 and the first capacitor C04 may form a first group of RC series circuits (RC filter, RC network or phase shift circuit), the second resistor R03 and the second capacitor CO5 form a second group of RC series circuits, and the two groups of RC series circuits may play a role in attenuating out-of-band signals.
In this embodiment, the differential unit 31 includes a second transformer TF1, an eighth capacitor C01, a ninth capacitor C02, a tenth capacitor C10, and an eleventh capacitor C03.
The second transformer TF1 includes a second primary coil and a second secondary coil, and a first end of the second primary coil is used as an input end of the amplifier stage differential power unit 3 to be connected to an output end of the driver stage power unit 2, that is, a first end of the second primary coil is connected to a collector of a driving transistor in the driver stage power unit 2.
A first end of the eighth capacitor C01 is connected to the first end of the second primary coil, and a second end of the eighth capacitor C01 is grounded; a first end of the ninth capacitor C02 is connected to the second end of the second primary coil, and a second end of the ninth capacitor C02 is grounded; a first end of the tenth capacitor C10 is connected to the second end of the second primary coil, and a second end of the tenth capacitor C10 is grounded; a first terminal of the eleventh capacitor C03 is connected to the center tap of the second secondary winding, and a second terminal of the eleventh capacitor C03 is grounded.
The second terminal of the second primary winding is also connected to a first supply voltage VCC1.
The input of the first final power unit 32 is connected to a first end of the second secondary winding, and the input of the second final power unit 33 is connected to a second end of the second secondary winding.
In addition, the differential unit 31 further includes a fourth resistor R01; the fourth resistor R01 is connected in parallel to the first and second terminals of the second primary coil. The fourth resistor R01 may serve to improve the isolation between two balanced ports (the first end and the second end of the second primary winding) of the second transformer TF 1.
In the present embodiment, the circuit structure of the first final stage power unit 32 is the same as that of the driver stage power unit 2; the circuit configuration of the second final stage power unit 33 is also the same as that of the driver stage power unit 2.
The first final power unit 32: the base of the driving transistor serves as an input terminal of the first final power unit 32 to be connected to a first terminal of the second secondary coil, the emitter of the driving transistor is grounded, the collector of the driving transistor serves as an output terminal of the first final power unit 32 to be connected to a first input terminal of the output synthesizing unit 4, the driving capacitor is connected in series between the base of the driving transistor and a first terminal of the second secondary coil, a first terminal of the driving resistor is connected to the second bias circuit 6, and a second terminal of the driving resistor is connected to the base of the driving transistor.
In the second final stage power unit 33: the base of the driving transistor serves as an input terminal of the second final power unit 33 to be connected to the second terminal of the second secondary coil, the emitter of the driving transistor is grounded, the collector of the driving transistor serves as an output terminal of the second final power unit 33 to be connected to the second input terminal of the output combining unit 4, the driving capacitor is connected in series between the base of the driving transistor and the second terminal of the second secondary coil, the first terminal of the driving resistor is connected to the third bias circuit 7, and the second terminal of the driving resistor is connected to the base of the driving transistor.
In this embodiment, the output synthesizing unit 4 includes a first transformer TF2, a third capacitor CO7, a fourth capacitor C11, and a fifth capacitor C08.
The first transformer TF2 includes a first primary coil having a first end as a first input terminal of the output combining unit 4 to be connected to the output terminal of the first final power unit 32, a second end of the first primary coil as a second input terminal of the output combining unit 4 to be connected to the output terminal of the second final power unit 33, and a first secondary coil having a first end as an output terminal of the output combining unit 4 to be connected to the signal output terminal RFout.
The center tap of the first primary winding is also connected to a second supply voltage VCC2.
A first end of the third capacitor CO7 is connected to the middle tap of the first primary coil, and a second end of the third capacitor CO7 is grounded; a first end of the fourth capacitor C11 is connected to the center tap of the first primary coil, and a second end of the fourth capacitor C11 is grounded; a first terminal of the fifth capacitor C08 is connected to the second terminal of the first secondary winding, and a second terminal of the fifth capacitor C08 is grounded.
In this embodiment, the output combining unit 4 further includes a sixth capacitor 06 and a third resistor R04; a sixth capacitor 06 is connected in parallel between the first terminal and the second terminal of the first primary winding, and a third resistor R04 is also connected in parallel between the first terminal and the second terminal of the first primary winding.
A sixth capacitor 06 and a third resistor R04 forming an RC parallel circuit are introduced into two balanced ports (a first end and a second end of the first primary winding) of the first transformer TF2, so that the isolation between the two balanced ports of the first transformer TF2 can be improved.
In the present embodiment, the output combining unit 4 further includes a resonance circuit connected to a first end of the first secondary coil; the resonant circuit comprises a seventh capacitor C09 and an inductor L01; a first end of the seventh capacitor C09 is connected to the first end of the first secondary winding, a first end of the inductor L01 is connected to the second end of the seventh capacitor C09, and a second end of the inductor L01 is grounded.
By introducing a resonant circuit into the unbalanced port (the first end of the first secondary winding) of the first transformer TF2, the second-order filtering of the main frequency can be suppressed, and the seventh capacitor C09 can adjust the impedance of the two balanced ports of the first transformer TF 2.
In this embodiment, the principle of the two-stage differential power amplifier 100 for improving the circuit gain effect is as follows: a first capacitor C04 and a second capacitor CO5 (cross-coupling capacitors) are introduced between the first final stage power unit 32 and the second final stage power unit 33, so that two paths of differential signals which are amplified by the first final stage power unit 32 and the second final stage power unit 33 and are completely opposite in phase can be compensated into the output combining unit 4 of the other path, that is, the cross-coupling capacitors introduce negative capacitance effects with respect to base nodes of the corresponding first final stage power unit 32 and the second final stage power unit 33, respectively, and further neutralize the influence generated by the base-collector capacitors (Cbc).
In addition, the two-stage differential power amplifier 100 in the present embodiment further includes an input matching circuit 1 connected in series between the signal input terminal RFin and the input terminal of the driving stage power unit 2.
The term "connected" as used in this embodiment is electrically connected or connected, i.e., two or more devices are connected or connected electrically.
Compared with the prior art, the two-stage differential power amplifier 100 of the present invention adds the first capacitor C04 between the input end of the first final stage power unit 32 and the output end of the second final stage power unit 33, and adds the second capacitor CO5 between the input end of the second final stage power unit 33 and the output end of the first final stage power unit 32, so that two paths of radio frequency differential signals amplified by the first final stage power unit 32 and the second final stage power unit 33 can be supplemented to the other path of output synthesis unit 4, thereby reducing the influence of the base-collector capacitance on the first final stage power unit 32 and the second final stage power unit 33, and further improving the circuit gain effect of the two-stage differential power amplifier 100.
The invention further provides another embodiment, which is a radio frequency power amplifier module, and the radio frequency power amplifier module comprises the two-stage differential power amplifier 100 in the embodiment.
Since the rf power amplifier module in this embodiment includes the two-stage differential power amplifier 100 in the above embodiment, the rf power amplifier module can also achieve the technical effects achieved by the two-stage differential power amplifier 100 in the above embodiment, which is not described herein again.
While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (10)
1. A two-stage differential power amplifier comprises a signal input end, a driving stage power unit, an amplification stage differential power unit, an output synthesis unit and a signal output end which are connected in sequence;
the driving stage power unit is used for amplifying and outputting one path of single-ended signal received by the signal input end; the amplifying stage differential power unit is used for receiving one path of the single-ended signal amplified by the driving stage power unit, converting the single-ended signal into two paths of differential signals, and respectively amplifying and outputting the two paths of differential signals; the output synthesis unit is used for synthesizing two paths of differential signals converted and amplified by the amplification stage differential power unit into a single-ended signal and outputting the single-ended signal to the signal output end,
the amplification stage differential power unit comprises a differential unit, a first final power unit, a second final power unit, a first capacitor and a second capacitor; the first capacitor is connected in series between an input terminal of the first final power unit and an output terminal of the second final power unit, and the second capacitor is connected in series between an input terminal of the second final power unit and an output terminal of the first final power unit.
2. The two stage differential power amplifier of claim 1, said amplifying stage differential power cell further comprising a first resistor and a second resistor; the first resistor is connected in series between the input terminal of the first final power unit and the first capacitor, and the second resistor is connected in series between the input terminal of the second final power unit and the second capacitor.
3. The two-stage differential power amplifier of claim 2, wherein the output combining unit comprises a first transformer, a third capacitor, a fourth capacitor, and a fifth capacitor;
the first transformer includes a first primary coil and a first secondary coil, a first end of the first primary coil is used as a first input end of the output combining unit to be connected with the output end of the first final power unit, a second end of the first primary coil is used as a second input end of the output combining unit to be connected with the output end of the second final power unit, and a first end of the first secondary coil is used as an output end of the output combining unit to be connected with the signal output end;
a first end of the third capacitor is connected to a center tap of the first primary coil, and a second end of the third capacitor is grounded;
a first end of the fourth capacitor is connected to a center tap of the first primary coil, and a second end of the fourth capacitor is grounded;
the first end of the fifth capacitor is connected to the second end of the first secondary coil, and the second end of the fifth capacitor is grounded.
4. The two-stage differential power amplifier of claim 3, wherein said output combining unit further comprises a sixth capacitor and a third resistor; the sixth capacitor is connected in parallel between the first end and the second end of the first primary coil, and the third resistor is also connected in parallel between the first end and the second end of the first primary coil.
5. A two-stage differential power amplifier as claimed in claim 3, wherein said output combining unit further comprises a resonant circuit connected to a first end of said first secondary winding.
6. The two-stage differential power amplifier of claim 5, wherein said resonant circuit comprises a seventh capacitor and an inductor; the first end of the seventh capacitor is connected to the first end of the first secondary coil, the first end of the inductor is connected to the second end of the seventh capacitor, and the second end of the inductor is grounded.
7. The two-stage differential power amplifier of claim 2, wherein the differential unit includes a second transformer, an eighth capacitor, a ninth capacitor, a tenth capacitor, and an eleventh capacitor;
the second transformer comprises a second primary coil and a second secondary coil, and a first end of the second primary coil is used as an input end of the amplification stage differential power unit and is connected with an output end of the driving stage power unit;
a first end of the eighth capacitor is connected to the first end of the second primary coil, and a second end of the eighth capacitor is grounded;
a first end of the ninth capacitor is connected to the second end of the second primary coil, and a second end of the ninth capacitor is grounded;
a first end of the tenth capacitor is connected to the second end of the second primary coil, and a second end of the tenth capacitor is grounded;
a first end of the eleventh capacitor is connected to the center tap of the second secondary coil, and a second end of the eleventh capacitor is grounded;
the input end of the first final power unit is connected with the first end of the second secondary coil, and the input end of the second final power unit is connected with the second end of the second secondary coil.
8. The two-stage differential power amplifier according to claim 7, wherein said differential unit further comprises a fourth resistor; the fourth resistor is connected in parallel to the first and second ends of the second primary coil.
9. The two stage differential power amplifier according to claim 7, wherein said driver stage power cell comprises a driving transistor, a driving capacitor, and a driving resistor;
a base electrode of the driving triode is used as an input end of the driving stage power unit and is connected with the signal input end, an emitting electrode of the driving triode is grounded, a collecting electrode of the driving triode is used as an output end of the driving stage power unit and is connected with an input end of the amplification stage differential power unit, the driving capacitor is connected between the base electrode of the driving triode and the signal input end in series, a first end of the driving resistor is connected to a first bias circuit, and a second end of the driving resistor is connected to the base electrode of the driving triode;
the circuit structure of the first final stage power unit is the same as that of the driving stage power unit; the first final power unit is configured to: a base electrode of the driving triode is used as an input end of the first final power unit to be connected with a first end of the second secondary coil, an emitting electrode of the driving triode is grounded, a collecting electrode of the driving triode is used as an output end of the first final power unit to be connected with a first input end of the output synthesis unit, the driving capacitor is connected between the base electrode of the driving triode and a first end of the second secondary coil in series, a first end of the driving resistor is connected to the second bias circuit, and a second end of the driving resistor is connected to the base electrode of the driving triode;
the circuit structure of the second final stage power unit is the same as that of the driving stage power unit; in the second final power unit: the base electrode of the driving triode is used as the input end of the second final power unit and is connected with the second end of the second secondary coil, the emitting electrode of the driving triode is grounded, the collecting electrode of the driving triode is used as the output end of the second final power unit and is connected with the second input end of the output synthesis unit, the driving capacitor is connected between the base electrode of the driving triode and the second end of the second secondary coil in series, the first end of the driving resistor is connected to a third bias circuit, and the second end of the driving resistor is connected to the base electrode of the driving triode.
10. A radio frequency power amplifier module, characterized in that the radio frequency power amplifier module comprises a two-stage differential power amplifier according to any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211323752.2A CN115567016A (en) | 2022-10-26 | 2022-10-26 | Two-stage differential power amplifier and radio frequency power amplifier module |
| PCT/CN2023/115050 WO2024087851A1 (en) | 2022-10-26 | 2023-08-25 | Two-stage differential power amplifier and radio frequency power amplifier module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211323752.2A CN115567016A (en) | 2022-10-26 | 2022-10-26 | Two-stage differential power amplifier and radio frequency power amplifier module |
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| CN115567016A true CN115567016A (en) | 2023-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211323752.2A Pending CN115567016A (en) | 2022-10-26 | 2022-10-26 | Two-stage differential power amplifier and radio frequency power amplifier module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115567016A (en) |
| WO (1) | WO2024087851A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024087851A1 (en) * | 2022-10-26 | 2024-05-02 | 深圳飞骧科技股份有限公司 | Two-stage differential power amplifier and radio frequency power amplifier module |
| WO2024087850A1 (en) * | 2022-10-26 | 2024-05-02 | 深圳飞骧科技股份有限公司 | Differential power amplifier circuit and radio frequency chip |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101371816B1 (en) * | 2012-09-14 | 2014-03-07 | 숭실대학교산학협력단 | Differential power amplifier for harmonic rejection |
| CN206332649U (en) * | 2016-12-23 | 2017-07-14 | 陕西烽火实业有限公司 | A kind of low pressure radio-frequency power amplifier |
| US11005433B2 (en) * | 2018-02-12 | 2021-05-11 | Georgia Tech Research Corporation | Continuous-mode harmonically tuned power amplifier output networks and systems including same |
| CN212518921U (en) * | 2020-06-30 | 2021-02-09 | 吉林大学 | High-gain power amplifier chip with harmonic suppression |
| CN111934629B (en) * | 2020-07-24 | 2021-06-11 | 成都天锐星通科技有限公司 | Broadband high-linearity power amplifier |
| CN215990714U (en) * | 2021-09-27 | 2022-03-08 | 深圳飞骧科技股份有限公司 | Radio frequency power amplifier and radio frequency front end architecture applied to 5G communication system |
| CN216390918U (en) * | 2021-11-05 | 2022-04-26 | 深圳飞骧科技股份有限公司 | HBT high-efficiency radio frequency power amplifier |
| CN114785289B (en) * | 2022-04-02 | 2023-01-06 | 华南理工大学 | Doherty power amplifier |
| CN114785295B (en) * | 2022-06-22 | 2022-10-25 | 华南理工大学 | Ultra-wideband power amplifier and phased array transmitter |
| CN115567016A (en) * | 2022-10-26 | 2023-01-03 | 深圳飞骧科技股份有限公司 | Two-stage differential power amplifier and radio frequency power amplifier module |
-
2022
- 2022-10-26 CN CN202211323752.2A patent/CN115567016A/en active Pending
-
2023
- 2023-08-25 WO PCT/CN2023/115050 patent/WO2024087851A1/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024087851A1 (en) * | 2022-10-26 | 2024-05-02 | 深圳飞骧科技股份有限公司 | Two-stage differential power amplifier and radio frequency power amplifier module |
| WO2024087850A1 (en) * | 2022-10-26 | 2024-05-02 | 深圳飞骧科技股份有限公司 | Differential power amplifier circuit and radio frequency chip |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024087851A1 (en) | 2024-05-02 |
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