CN114978064A - Power amplifier circuit, radio frequency circuit, electronic device, and adjustment method - Google Patents

Power amplifier circuit, radio frequency circuit, electronic device, and adjustment method Download PDF

Info

Publication number
CN114978064A
CN114978064A CN202210528910.1A CN202210528910A CN114978064A CN 114978064 A CN114978064 A CN 114978064A CN 202210528910 A CN202210528910 A CN 202210528910A CN 114978064 A CN114978064 A CN 114978064A
Authority
CN
China
Prior art keywords
radio frequency
power amplifier
module
output end
amplifier circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210528910.1A
Other languages
Chinese (zh)
Inventor
潘勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vivo Mobile Communication Co Ltd
Original Assignee
Vivo Mobile Communication Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vivo Mobile Communication Co Ltd filed Critical Vivo Mobile Communication Co Ltd
Priority to CN202210528910.1A priority Critical patent/CN114978064A/en
Publication of CN114978064A publication Critical patent/CN114978064A/en
Pending legal-status Critical Current

Links

Images

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
    • H03F3/21—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
    • 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
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
    • H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Amplifiers (AREA)

Abstract

The application discloses power amplifier circuit belongs to the integrated circuit field, includes: the power amplifier circuit comprises a first power amplifier, a second power amplifier and a first adjustable phase module, wherein the input end of the first power amplifier is connected with the first output end of the radio frequency transceiver, the first input end of the first adjustable phase module is connected with the third output end of the radio frequency transceiver, the output end of the first power amplifier is connected with the second input end of the first adjustable phase module, and the output end of the first adjustable phase module is connected with the output end of the power amplifier circuit; an input end of the second amplifier is connected to a second output end of the radio frequency transceiver, and an output end of the second amplifier is connected to an output end of the power amplifier circuit.

Description

Power amplifier circuit, radio frequency circuit, electronic device, and adjustment method
Technical Field
The application belongs to the field of integrated circuits, and particularly relates to a power amplifier circuit, a radio frequency circuit, electronic equipment and a radio frequency signal adjusting method.
Background
For radio frequency signals transmitted by a radio frequency transceiver, a power divider is generally adopted in the prior art to divide the radio frequency signals into two paths of radio frequency signals and then input the radio frequency signals into corresponding power amplifiers, and phases of the two paths of radio frequency signals are adjusted by combining a lambda/4 transmission line, so that the transformation of target impedance under a wide band is realized.
However, the λ/4 transmission line is implemented by a microstrip line with a fixed length, and if the working bandwidth of the power amplifier is increased, accurate impedance inversion cannot be implemented, which greatly reduces the working efficiency of the power amplifier. In addition, the power dividers adopted at the input ends of the two power amplifiers are generally in a fixed power distribution ratio, which also affects the working efficiency of the power amplifiers.
Disclosure of Invention
An object of the embodiments of the present application is to provide a power amplifier circuit, which can solve the problem of low impedance transformation accuracy of the power amplifier under broadband change.
In a first aspect, an embodiment of the present application provides a power amplifier circuit, which includes a first amplifier, a second amplifier, and a first adjustable phase module,
an input end of the first amplifier is connected to a first output end of the radio frequency transceiver, a first input end of the first adjustable phase module is connected to a third output end of the radio frequency transceiver, an output end of the first amplifier is connected to a second input end of the first adjustable phase module, and an output end of the first adjustable phase module is connected to an output end of the power amplifier circuit;
an input end of the second amplifier is connected to a second output end of the radio frequency transceiver, and an output end of the second amplifier is connected to an output end of the power amplifier circuit.
In a second aspect, an embodiment of the present application provides a radio frequency circuit, including a radio frequency transceiver, a power supply module, a network signal module, and an antenna module, where the network signal module includes the power amplifier circuit according to the first aspect,
the input end of the first power amplifier is connected with the first output end of the radio frequency transceiver, the input end of the second power amplifier is connected with the second output end of the radio frequency transceiver, the output end of the power amplifier circuit is connected with the antenna module, and the power supply module is connected with the power amplifier circuit.
In a third aspect, an embodiment of the present application provides an electronic device, including the power amplifier circuit according to the first aspect, or the radio frequency circuit according to the second aspect.
In a fourth aspect, an embodiment of the present application provides a radio frequency signal adjusting method applied to the power amplifier circuit according to the first aspect, the method includes:
determining a control voltage signal according to the current frequency of a target radio frequency signal transmitted by the radio frequency transceiver;
and controlling the radio frequency transceiver to output the control voltage signal to the first adjustable phase module so as to control the first adjustable phase module to adjust the phase of the first radio frequency signal output by the first power amplifier.
In this embodiment, the power amplifier circuit includes a first power amplifier, a second power amplifier, and a first adjustable phase module, where an input end of the first power amplifier is connected to a first output end of the radio frequency transceiver, a first input end of the first adjustable phase module is connected to a third output end of the radio frequency transceiver, an output end of the first power amplifier is connected to a second input end of the first adjustable phase module, and an output end of the first adjustable phase module is connected to an output end of the power amplifier circuit; the input end of the second power amplifier is connected with the second output end of the radio frequency transceiver, and the output end of the second power amplifier is connected with the output end of the power amplifier circuit, so that accurate impedance inversion within a wide working bandwidth range can be realized under the condition that the working bandwidth of the power amplifier circuit is increased by variably adjusting the phase of the radio frequency signal output by the first power amplifier, the power amplifier circuit is ensured to work in a high-efficiency state, and the working efficiency of the power amplifier circuit is remarkably improved.
Drawings
Fig. 1 is a block diagram of a power amplifier circuit according to an embodiment of the present application.
Fig. 2A, 2B, and 2C are circuit structure diagrams of phase-adjustable λ/4 microstrip lines according to embodiments of the present application.
Fig. 3 is a circuit configuration diagram of a power amplifier circuit according to an embodiment of the present application.
Fig. 4 is a block diagram of a radio frequency circuit according to an embodiment of the present application.
Fig. 5 is a circuit configuration diagram of a radio frequency circuit according to an embodiment of the present application.
Fig. 6 is a flowchart of an rf signal adjusting method according to an embodiment of the present application.
Fig. 7 is a flowchart of an rf signal conditioning method according to an embodiment of the present application.
Fig. 8 is a schematic diagram of an optimal phase difference compensation scanning process according to an embodiment of the present application.
Fig. 9 is a schematic diagram of an optimal power allocation ratio scanning procedure according to an embodiment of the present application.
Fig. 10 is a block diagram of an rf signal adjusting apparatus according to an embodiment of the present application.
Fig. 11 is a block diagram of an electronic device implementing an embodiment of the present application.
Fig. 12 is a hardware structure diagram of an electronic device implementing an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The power amplifier circuit, the radio frequency circuit, the electronic device, and the radio frequency signal adjusting method provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings and application scenarios thereof.
The embodiment of the application provides a power amplifier circuit, which includes a first power amplifier, a second power amplifier and a first adjustable phase module, wherein an input end of the first power amplifier is connected with a first output end of a radio frequency transceiver, a first input end of the first adjustable phase module is connected with a third output end of the radio frequency transceiver, an output end of the first power amplifier is connected with a second input end of the first adjustable phase module, and an output end of the first adjustable phase module is connected with an output end of the power amplifier circuit; an input end of the second amplifier is connected to a second output end of the radio frequency transceiver, and an output end of the second amplifier is connected to an output end of the power amplifier circuit.
Referring now to fig. 1, fig. 1 is a block diagram of a power amplifier circuit according to an embodiment of the present application.
As shown in fig. 1, the power amplifier circuit 100 includes a first amplifier 10, a second amplifier 20, and a first adjustable phase module 30.
Optionally, the first amplifier 10 comprises a carrier amplifier and the second amplifier 20 comprises a peaking amplifier.
The rf transceiver 40 is configured to transmit a 4G rf signal or a 5G rf signal, where the rf transceiver directly divides the rf signal into two paths of a first input rf signal and a second input rf signal, and inputs the two paths of the first input rf signal and the second input rf signal to the first power amplifier 10 and the second power amplifier 20 from corresponding output ports, respectively.
At present, most radio frequency transceivers of mobile terminals adopt a zero intermediate frequency architecture, which is mainly used for up-conversion and down-conversion of signals and has partial control functions related to radio frequency.
Optionally, the first adjustable phase module 30 is a phase-adjustable λ/4 microstrip line. Optionally, the phase-adjustable λ/4 microstrip line includes a variable capacitance diode, for example, an LC circuit composed of a variable capacitance diode and an inductor, or a circuit composed of a variable capacitance diode and a microstrip network.
As shown in fig. 2A and fig. 2B, the phase-adjustable λ/4 microstrip line is implemented as follows: the LC network circuit is formed by a plurality of inductors L1, L2, … and Ln and a plurality of corresponding variable capacitance diodes C1, C2, … and Cn.
As shown in fig. 2C, the phase-adjustable λ/4 microstrip line is implemented as follows: a microstrip-capacitor network circuit is formed by a plurality of microstrip networks 1, 2 and …, a microstrip network n and a plurality of corresponding variable capacitor diodes C1, C2, … and Cn.
The radio frequency transceiver 40 further outputs a control voltage signal to the first adjustable phase module 30, where the control voltage signal is determined according to the current frequency of the radio frequency signal transmitted by the radio frequency transceiver 40, and thus the first adjustable phase module 30 may adjust the capacitance change thereof according to the received control voltage signal, and perform time delay on the first radio frequency signal amplified by the first power amplifier 10, thereby implementing phase adjustment on the first radio frequency signal.
As described above, the output terminal of the second amplifier 20 is connected to the output terminal of the power amplifier circuit. Connections herein include direct connections and indirect connections.
In the embodiment of fig. 1, when the output end of the second power amplifier 20 is directly connected to the output end of the power amplifier circuit, the output end of the second power amplifier 20 is connected to the output end of the first adjustable phase module 30, that is, the output end of the corresponding power amplifier circuit, that is, the first output radio frequency signal output after the phase adjustment by the first adjustable phase module 30 is combined with the second output radio frequency signal amplified by the second power amplifier 20, so that the combined radio frequency signal is output through the output end of the power amplifier circuit.
The control voltage signal output by the radio frequency transceiver 40 may be determined according to the current frequency of the transmitted 4G or 5G radio frequency signal. The following will specifically describe the radio frequency signal adjustment method, which will not be described herein again.
After the desired phase is determined, the time delay required for first adjustable phase module 30 may be determined, which in turn determines the amount of capacitance change required for first adjustable phase module 30. The required voltage level can be determined according to the corresponding relationship between the capacitances generated by the capacitive elements of the first adjustable phase module 30 under different voltage signals. The relationship between the control voltage and the capacitance of the variable capacitor may be stored in a control module of the rf transceiver 40 and recalled by a table lookup.
Therefore, the rf transceiver 40 can output a corresponding control voltage according to a phase required at a current frequency, so as to adjust and optimize the phase of the first rf signal output by the first amplifier 10.
By variably adjusting the phase of the radio-frequency signal output by the first amplifier, the accurate impedance inversion within a wide working bandwidth range can be realized under the condition that the working bandwidth of the power amplifier circuit is increased, the power amplifier circuit is ensured to work in a high-efficiency state, and therefore the working efficiency of the power amplifier circuit is remarkably improved.
In an embodiment, to further optimize impedance transformation under a broadband, the power amplifier circuit may further include a second adjustable phase module, a first input of the second adjustable phase module is connected to the fourth output of the radio frequency transceiver, a second input of the second adjustable phase module is respectively connected to the output of the second power amplifier and the output of the first adjustable phase module, and an output of the second adjustable phase module is the output of the power amplifier circuit.
In this embodiment, the output terminal of the second amplifier 20 and the output terminal of the power amplifier circuit are connected as an indirect connection via the second adjustable phase module.
The second adjustable phase module (not shown in the figure) may perform phase adjustment on a combined rf signal output by combining the first output rf signal output by the first adjustable phase module 30 and the second output rf signal output by the second amplifier 20 in fig. 1, where the adjusted rf signal is used as the rf signal finally output by the power amplifier circuit 100.
Similar to the first adjustable phase module, the second adjustable phase module is a phase-adjustable lambda/4 microstrip line, and the phase-adjustable lambda/4 microstrip line comprises a variable capacitance diode.
At this time, the radio frequency transceiver 40 further outputs a control voltage signal to the second adjustable phase module, so that the second adjustable phase module can adjust the capacitance change thereof according to the received control voltage signal, and delay the combined radio frequency signal of fig. 1 again to implement the phase adjustment of the combined radio frequency signal.
The rf transceiver 40 may output a control voltage as a fixed level signal, or may directly output a control voltage with a variable voltage value in a wide range, where the variable control voltage value is a voltage required for current phase adjustment.
In the case that the radio frequency transceiver outputs the control voltage of the fixed level signal, the fixed level signal may be further amplified or attenuated in combination with a variable gain amplifier.
In a case that the power amplifier circuit includes both the first adjustable phase module and the second adjustable phase module, optionally, the power amplifier circuit further includes a first variable gain amplifier and a second variable gain amplifier, where the first variable gain amplifier is disposed between the third output end of the radio frequency transceiver and the first input end of the first adjustable phase module, and the second variable gain amplifier is disposed between the fourth output end of the radio frequency transceiver and the first input end of the second adjustable phase module.
The first variable gain amplifier and the second variable gain amplifier amplify or attenuate a control voltage signal output by the radio frequency transceiver respectively and then correspondingly input the control voltage signal to the first adjustable phase module and the second adjustable phase module.
In this embodiment, after determining the phase corresponding to the current frequency, the radio frequency transceiver outputs the control voltage of the fixed level signal, and the control voltage is respectively input to the first variable gain amplifier and the second variable gain amplifier, and the corresponding variable gain amplifier correspondingly amplifies or attenuates the fixed level signal according to the required control voltage value, so that the control voltage can float in a wider range, thereby realizing variable adjustment of the phase under the condition of increasing the broadband.
Of course, in case the power amplifier circuit comprises only the first adjustable phase module, the power amplifier circuit may comprise only the first variable gain amplifier.
Referring now to fig. 3, fig. 3 is a circuit block diagram of a power amplifier circuit according to an embodiment of the present application.
In this embodiment, the RF transceiver is a WTR, the first amplifier is a carrier amplifier, the second amplifier is a peak amplifier, and the first input RF signal is RF in1 The first input RF signal is RF in2 The first adjustable phase module is a lambda/4 broadband adjustable phase shifting network 32, the second adjustable phase module is a lambda/4 broadband adjustable phase shifting network 34, the first variable gain amplifier is a PGA 72, and the second variable gain amplifier is a PGA 74. The operation principle of each component of the power amplifier circuit of this embodiment is described above with reference to the above description, and is not described here again.
In this embodiment, the power amplifier circuit includes a first power amplifier, a second power amplifier, and a first adjustable phase module, where an input end of the first power amplifier is connected to a first output end of the radio frequency transceiver, a first input end of the first adjustable phase module is connected to a third output end of the radio frequency transceiver, an output end of the first power amplifier is connected to a second input end of the first adjustable phase module, and an output end of the first adjustable phase module is connected to an output end of the power amplifier circuit; the input end of the second power amplifier is connected with the second output end of the radio frequency transceiver, and the output end of the second power amplifier is connected with the output end of the power amplifier circuit, so that accurate impedance inversion within a wide working bandwidth range can be realized under the condition that the working bandwidth of the power amplifier circuit is increased by variably adjusting the phase of the radio frequency signal output by the first power amplifier, the power amplifier circuit is ensured to work in a high-efficiency state, and the working efficiency of the power amplifier circuit is remarkably improved.
In another embodiment of the present application, a radio frequency circuit is further provided, where the radio frequency circuit includes a radio frequency transceiver, a power module, a network signal module, and an antenna module, the network signal module includes the power amplifier circuit described in the embodiments of fig. 1 to 3, an input end of the first amplifier is connected to a first output end of the radio frequency transceiver, an input end of the second amplifier is connected to a second output end of the radio frequency transceiver, an output end of the power amplifier circuit is connected to the antenna module, and the power module is connected to the power amplifier circuit.
Referring to fig. 4, fig. 4 is a block diagram of a radio frequency circuit according to an embodiment of the present application.
As shown in fig. 4, the rf circuit includes an rf transceiver 40, a power module 50, a network signal module 200, and an antenna module 60. The network signal module 200 includes the power amplifier circuit 100, and the combined rf signal output by the power amplifier circuit 100 is transmitted to the antenna module 60 after being processed by other elements of the network signal module 200.
The rf transceiver 40 divides the transmitted target rf signal, 4G rf signal or 5G rf signal into a first input rf signal and a second input rf signal, and outputs the first input rf signal and the second input rf signal to the first power amplifier 10 and the second power amplifier 20 correspondingly.
In one embodiment, the phases of the first input rf signal and the second input rf signal output by the rf transceiver 40 may be adjusted according to the power amplifier circuit operating efficiency and the current transmission frequency of the target rf signal. The phase adjustment of the two input rf signals will be specifically described below with reference to an rf signal adjustment method, which is not described herein again.
The network signal module 200 may be a 4G module or a 5G New Radio (NR) module, and corresponds to a type of the rf signal output by the rf transceiver 40.
The Power module 50 is configured to provide Power to the network signal module 200, and the Power module 50 may be an Envelope Tracking (ET) Power chip or an Average Power Tracking (APT) Power chip.
Optionally, the power module is an APT power chip. Compared with an ET chip, the APT chip has the advantages of low cost and power saving effect.
Fig. 5 is a circuit structure diagram of a radio frequency circuit according to an embodiment of the present application, and as shown in fig. 5, the radio frequency circuit includes two different types of network signal modules: the 4G module U1 and the 5G NR module U2 each include a power amplifier circuit 100 shown in fig. 3 for amplifying the rf signal transmitted by the WTR.
In this embodiment, the WTR splits the RF signal into two 4G input signals RF in1 And RF in2 And correspondingly input the signals into a carrier power amplifier and a peak power amplifier in a 4G module U1. Meanwhile, the WTR divides the radio frequency signal into two paths of 5G input signals RF in1 And RF in2 And correspondingly input the signals into a carrier power amplifier and a peak power amplifier in a 5G module U1.
Of course, in other embodiments, the rf circuit may include only one of the 4G module U1 and the 5G NR module U2.
The APT power chip 1 is used for supplying power for the 4G module U1, and the APT power chip 2 is used for supplying power for the 5G NR module U2.
As shown in fig. 5, in addition to the power amplifier circuit, the 4G module U1 and the 5G NR module U2 respectively include a switch for band selection or TDD Tx/Rx path switching; the duplexer is used for FDD Tx/Rx frequency separation and out-of-band signal suppression; the filter is used for inhibiting TDD system out-of-band signals; the directional coupler is used for power detection, standing wave detection and the like.
The antennas ANT1 and ANT2 are used for transmitting and receiving radio frequency signals, and are equivalent to impedance transformation or energy conversion between a conducted impedance and an air medium wave impedance.
In another embodiment of the present application, there is also provided an electronic device including the power amplifier circuit described in the above embodiments of fig. 1 to 3, or including the radio frequency circuit described in the above embodiments of fig. 4 to 5.
The electronic device in the embodiment of the present application may be a terminal, or may be other devices besides the terminal. By way of example, the electronic Device may be a Mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted electronic Device, a Mobile Internet Device (MID), an Augmented Reality (AR)/Virtual Reality (VR) Device, a robot, a wearable Device, an ultra-Mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and may also be a Personal Computer (PC), and the like, and the embodiments of the present application are not limited in particular.
In yet another embodiment of the present application, a method for adjusting a radio frequency signal is further provided, which is applied to the power amplifier circuit in the embodiments of fig. 1 to 5.
As shown in fig. 6, the method includes:
step 102, determining a control voltage signal according to the current frequency of a target radio frequency signal transmitted by the radio frequency transceiver;
step 104, controlling the radio frequency transceiver to output the control voltage signal to the first adjustable phase module, so as to control the first adjustable phase module to adjust the phase of the first radio frequency signal output by the first power amplifier.
In step 102, optionally, determining a control voltage signal according to a current frequency of a target radio frequency signal transmitted by the radio frequency transceiver includes:
acquiring a phase value of the target radio frequency signal under a preset frequency as a reference value;
determining a required phase value of the current frequency of the target radio frequency signal according to the preset frequency and the reference value;
determining a voltage value corresponding to the required phase value according to a preset mapping relation between different phase values and the voltage value;
determining the control voltage signal according to the voltage value.
An embodiment of a method for adjusting a radio frequency signal may be described with reference to fig. 7, and fig. 7 is a flowchart of a method for adjusting a radio frequency signal according to an embodiment of the present application.
Optionally, when the first adjustable phase module includes a variable capacitance diode, the phase value corresponds to a capacitance value of the variable capacitance diode, and the preset mapping relationship is determined according to a capacitance-voltage relationship of the variable capacitance diode.
As shown in fig. 7, the method comprises the following steps:
s01: after entering an initialized normal working state, the radio frequency transceiver reads a reference value C0@ f0, wherein the value is a capacitance value corresponding to the phase shift of the lambda/4 broadband adjustable phase shift network by 90 degrees when the frequency of a radio frequency signal is f0 and is used as a reference for phase adjustment of the radio frequency signals with different frequencies;
s02: acquiring the frequency fx of a current carrier (radio frequency signal);
s03: judging whether the current carrier frequency fx changes or not, and if not, entering S08; if the change occurs, the process proceeds to S04;
s04: calculating a target capacitance value Cx corresponding to the frequency fx shifted by 90 degrees at the moment, wherein the specific calculation formula is Cx-f 0/fx-C0;
s05: judging whether the difference between the target capacitance Cx and the capacitance Cy after the last adjustment is larger than Delta C or not, wherein the difference is mainly used for preventing low-efficiency repeated switching when the frequency offset is small, and the value of Delta C is larger than the minimum adjustment precision of capacitance; if the change is larger than the delta C, the step S06 is carried out for adjustment;
s06: reading a look-up table pre-stored in a control module of the radio frequency transceiver, and determining a control voltage corresponding to a target capacitance Cx;
s07: outputting related control voltage to control the lambda/4 broadband adjustable phase-shifting network;
s08: and keeping the current phase unchanged and not adjusting.
Therefore, a control voltage signal determined according to the current frequency of the radio-frequency signal can be output to the adjustable phase module corresponding to the carrier power amplifier through the radio-frequency transceiver, and the phase of one path of radio-frequency signal input to the carrier power amplifier by the radio-frequency transceiver is adjusted. By adopting the phase variable adjustment, the accurate impedance inversion within a wider working bandwidth range can be realized under the condition that the working bandwidth of the power amplifier circuit is increased, and the power amplifier circuit is ensured to work in a high-efficiency state.
Optionally, before determining the control voltage signal according to the current frequency of the target radio frequency signal transmitted by the radio frequency transceiver, the method further comprises: splitting the target radio frequency signal into a first input radio frequency signal and a second input radio frequency signal; determining a phase difference between the first input radio frequency signal and the second input radio frequency signal according to a current frequency of the target radio frequency signal; and inputting the first input radio frequency signal and the second input radio frequency signal with the phase difference to the first power amplifier and the second power amplifier in a one-to-one correspondence manner.
In one embodiment, determining a phase difference between the first input radio frequency signal and the second input radio frequency signal according to a current frequency of the target radio frequency signal comprises:
determining a target phase difference compensation value corresponding to the current frequency according to a preset phase mapping relation between different frequencies and the phase difference compensation value, wherein the preset phase mapping relation is determined according to a phase difference between the first power amplifier and the second power amplifier when the power amplifier circuit reaches a maximum output total power under different phases of different frequencies;
determining a phase difference between the first input radio frequency signal and the second input radio frequency signal according to the target phase difference compensation value.
The preset phase mapping relationship can be obtained through experimental measurement, and is determined based on a phase difference when the maximum output total power can be achieved by the radio-frequency signals output by the first power amplifier and the second power amplifier after being combined under each frequency. That is, the preset phase mapping relationship indicates that the two paths of input radio frequency signals output by the radio frequency transceiver enable the power amplifier to achieve the optimal phase difference compensation value in the high-efficiency working state under different frequencies.
Fig. 8 is a schematic diagram of an optimal phase difference compensation scanning process according to an embodiment of the present application, as shown in fig. 8, including the following steps:
s01: two paths of input radio frequency signals RF of a first power amplifier and a second power amplifier are input in advance in1 And RF in2 The power distribution of the power amplifier is set to be 1:1, namely, the power can be initially distributed in a 3dB equal power mode, and the total power of the input radio frequency signals is set to enable the two paths of power amplifiers to be in a working state;
s02: a frequency point (namely frequency) scanning mode is given: f0+ (n-1) × Δ f, where f0 is the initial frequency point, Δ f is the scanning frequency interval, and initial n is 1;
s03: the phase scanning mode at any given frequency fn is given as follows: θ k ═ θ 0+ (k-1) × Δ θ, where θ 0 is the initial phase and Δ θ is the scan phase interval;
s04: traversing all k values under the given frequency point fn to traverse all phase values, and simultaneously testing the power P under the corresponding phase k ；
S05: acquiring a phase difference compensation value beta n corresponding to the maximum output power Pnmax in the current frequency point fn state;
s06: judging whether the phase difference compensation values of all the frequency points are obtained completely, and if the phase difference compensation values of all the frequency points are obtained completely, entering S08; if not, go to S07;
s07: scanning the phase compensation value of the next frequency point f (n +1) until the phase compensation value is finally completed;
s08: and after the scanning is finished, acquiring the optimal phase difference compensation value beta n under different frequency points fn, and storing the acquired result in the control module in a lookup table mode.
By performing cyclic scanning of different frequencies, the optimal phase difference compensation value β n corresponding to all the frequencies fn can be obtained.
The phase difference between a first input radio-frequency signal input into the first power amplifier and a second input radio-frequency signal input into the second power amplifier is adjusted to be an optimal phase difference compensation value corresponding to the current frequency, so that the combined radio-frequency signal amplified and output by the power amplifiers can possibly reach the maximum output total power, and the whole power amplifier circuit can reach a high-efficiency working state.
In addition to adjusting and optimizing the phases of two paths of radio frequency signals input to the power amplifier by the radio frequency transceiver, the amplitude of the radio frequency signals can be adjusted according to the power distribution between the two paths of radio frequency signals.
Fig. 8 illustrates the two paths of power amplifier input end phase compensation implementation processes, and in order to reduce the complexity of compensation, the phase compensation may be performed first, and then the amplitude compensation may be performed.
Optionally, after determining the phase difference between the first input radio frequency signal and the second input radio frequency signal, the method further includes:
determining a target power distribution ratio corresponding to the current frequency according to a preset amplitude mapping relation between different frequencies and the power distribution ratio, wherein the preset amplitude mapping relation is determined according to the power distribution ratio between the first power amplifier and the second power amplifier when the power amplifier circuit reaches the maximum output total power under phase difference compensation values corresponding to the different frequencies;
and adjusting the amplitude of the first input radio frequency signal and the amplitude of the second input radio frequency signal according to the total transmission power of the target radio frequency signal and the target power distribution ratio.
The preset amplitude mapping relation can be obtained through experimental measurement, and is determined based on a power distribution ratio when the maximum output total power is possible to be achieved based on the radio-frequency signals output by the first power amplifier and the second power amplifier after being combined under each frequency. That is to say, the preset amplitude mapping relationship indicates that two paths of input radio frequency signals output by the radio frequency transceiver are in the same input power state under different frequencies, so that the power amplifier achieves the optimal power distribution ratio under the high-efficiency working state. By the power splitting ratio, the total power of the input radio frequency signal can be adjusted to correspond to the amplitudes of the first input radio frequency signal and the second input radio frequency signal.
Fig. 9 is a schematic diagram of a power allocation ratio scanning process according to an embodiment of the present application, and as shown in fig. 9, the method includes the following steps:
s01: a frequency point (namely frequency) scanning mode is given: selecting a frequency point fn which is f0+ (n-1) Δ f, wherein f0 is an initial frequency point, Δ f is a scanning frequency interval, and initial n is 1;
s02: two paths of input radio frequency signals RF of a first power amplifier and a second power amplifier in1 And RF in2 The power distribution of (a + k) is set to 1, initial k is 1, and a and b are constants;
s03: setting an input radio frequency signal RF in1 And RF in2 The phase difference between the two is the optimal phase difference compensation value beta n determined in the above way;
s04: traversing all k values under the given frequency point fn to traverse all phase values, and simultaneously testing the power P under the corresponding phase k ；
S05: acquiring a power distribution ratio gamma n corresponding to the maximum output power Pnmax in the current frequency point fn state;
s06: judging whether all frequency points are scanned completely, acquiring a corresponding power distribution ratio, and if so, entering S08; if not, go to S07;
s07: scanning the power distribution ratio of the next frequency point f (n +1) until the power distribution ratio is finally completed;
s08: and after the scanning is finished, acquiring the optimal power distribution ratio gamma n under different frequency points fn, and storing the acquired result in the control module in a lookup table mode.
By performing the power distribution ratio cyclic scan of different frequencies, the power distribution ratio γ n corresponding to all the frequencies fn can be acquired.
The amplitude of two paths of input radio frequency signals is adjusted by adjusting the power distribution ratio between a first input radio frequency signal input into the first power amplifier and a second input radio frequency signal input into the second power amplifier to the optimal power distribution ratio corresponding to the current frequency, so that the combined radio frequency signals amplified and output by the power amplifiers can possibly reach the maximum output total power, and the whole power amplifier circuit can reach a high-efficiency working state.
In the radio frequency signal adjusting method provided by the embodiment of the application, the execution main body can be a radio frequency signal adjusting device. In the embodiment of the present application, a method for performing radio frequency signal adjustment by a radio frequency signal adjustment device is taken as an example to describe the radio frequency signal adjustment device provided in the embodiment of the present application.
Optionally, in an embodiment, the radio frequency signal adjusting apparatus is applied to the power amplifier circuit according to the above embodiments of fig. 1 to 9.
Fig. 10 is a block diagram of an rf signal conditioning apparatus according to an embodiment of the present application, and as shown in fig. 10, the apparatus 800 includes:
a determining module 820, configured to determine a control voltage signal according to a current frequency of a target radio frequency signal transmitted by the radio frequency transceiver;
a control module 840, configured to control the rf transceiver to output the control voltage signal to the first adjustable phase module, so as to control the first adjustable phase module to adjust a phase of a first rf signal output by the first power amplifier.
Optionally, the determining module 820 is specifically configured to:
acquiring a phase value of the target radio frequency signal under a preset frequency as a reference value;
determining a required phase value of the current frequency of the target radio frequency signal according to the preset frequency and the reference value;
determining a voltage value corresponding to the required phase value according to a preset mapping relation between different phase values and the voltage value;
determining the control voltage signal according to the voltage value.
Optionally, the apparatus 800 further comprises:
the shunt module is used for shunting a target radio frequency signal into a first input radio frequency signal and a second input radio frequency signal before determining a control voltage signal according to the current frequency of the target radio frequency signal transmitted by the radio frequency transceiver;
a phase difference determining module, configured to determine a phase difference between the first input radio frequency signal and the second input radio frequency signal according to a current frequency of the target radio frequency signal;
an input module, configured to input the first input radio frequency signal and the second input radio frequency signal with the phase difference to the first power amplifier and the second power amplifier in a one-to-one correspondence manner, respectively.
Optionally, the phase difference determining module is specifically configured to:
determining a target phase difference compensation value corresponding to the current frequency according to a preset phase mapping relation between different frequencies and the phase difference compensation value, wherein the preset phase mapping relation is determined according to a phase difference between the first power amplifier and the second power amplifier when the power amplifier circuit reaches a maximum output total power under different phases of different frequencies;
determining a phase difference between the first input radio frequency signal and the second input radio frequency signal according to the target phase difference compensation value.
Optionally, the apparatus 800 further comprises:
a power distribution ratio module, configured to determine a target power distribution ratio corresponding to the current frequency according to a preset amplitude mapping relationship between different frequencies and the power distribution ratio after determining a phase difference between the first input radio frequency signal and the second input radio frequency signal, where the preset amplitude mapping relationship is determined according to the power distribution ratio between the first power amplifier and the second power amplifier when the power amplifier circuit reaches a maximum output total power under the phase difference compensation values corresponding to the different frequencies;
and the adjusting module is used for adjusting the amplitude of the first input radio frequency signal and the amplitude of the second input radio frequency signal according to the total transmitting power of the target radio frequency signal and the target power distribution ratio.
Therefore, a control voltage signal determined according to the current frequency of the radio-frequency signal can be output to the adjustable phase module corresponding to the carrier power amplifier through the radio-frequency transceiver, and the phase of one path of radio-frequency signal input to the carrier power amplifier by the radio-frequency transceiver is adjusted. By adopting the phase variable adjustment, the accurate impedance inversion within a wider working bandwidth range can be realized under the condition that the working bandwidth of the power amplifier circuit is increased, and the power amplifier circuit is ensured to work in a high-efficiency state.
The radio frequency signal adjusting apparatus in the embodiment of the present application may be an electronic device, or may be a component in the electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal, or may be a device other than a terminal. By way of example, the electronic Device may be a Mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted electronic Device, a Mobile Internet Device (MID), an Augmented Reality (AR)/Virtual Reality (VR) Device, a robot, a wearable Device, an ultra-Mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and may also be a Personal Computer (PC), and the like, and the embodiments of the present application are not limited in particular.
The radio frequency signal adjusting device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present application are not limited specifically.
The radio frequency signal adjusting device provided in the embodiment of the present application can implement each process implemented by the method embodiments of fig. 6 to fig. 9, and is not described here again to avoid repetition.
Optionally, as shown in fig. 11, an electronic device 900 is further provided in this embodiment of the present application, and includes a processor 940 and a memory 920, where the memory 920 stores a program or an instruction that can be executed on the processor 940, and when the program or the instruction is executed by the processor 940, the steps of the embodiment of the radio frequency signal adjustment method are implemented, and the same technical effects can be achieved, and are not described again to avoid repetition.
It should be noted that the electronic devices in the embodiments of the present application include the mobile electronic device and the non-mobile electronic device described above. Fig. 12 is a schematic hardware structure diagram of an electronic device implementing an embodiment of the present application.
The electronic device 1000 includes, but is not limited to: a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, and a processor 1010.
The interface unit 1008 may correspond to the power amplifier circuit according to any of the embodiments of fig. 1 to fig. 5, and may achieve the same technical effect, and for avoiding repetition, the details are not described herein again.
A processor 1010 configured to determine a control voltage signal according to a current frequency of a target rf signal transmitted by the rf transceiver;
and controlling the radio frequency transceiver to output the control voltage signal to the first adjustable phase module so as to control the first adjustable phase module to adjust the phase of the first radio frequency signal output by the first power amplifier.
Optionally, the processor 1010 is specifically configured to:
acquiring a phase value of the target radio frequency signal under a preset frequency as a reference value;
determining a required phase value of the current frequency of the target radio frequency signal according to the preset frequency and the reference value;
determining a voltage value corresponding to the required phase value according to a preset mapping relation between different phase values and the voltage value;
and determining the control voltage signal according to the voltage value.
Optionally, the processor 1010 is further configured to: before determining a control voltage signal according to the current frequency of a target radio frequency signal transmitted by the radio frequency transceiver, shunting the target radio frequency signal into a first input radio frequency signal and a second input radio frequency signal;
determining a phase difference between the first input radio frequency signal and the second input radio frequency signal according to a current frequency of the target radio frequency signal;
and inputting the first input radio frequency signal and the second input radio frequency signal with the phase difference to the first power amplifier and the second power amplifier in a one-to-one correspondence manner.
Optionally, the processor 1010 is specifically configured to:
determining a target phase difference compensation value corresponding to the current frequency according to a preset phase mapping relation between different frequencies and the phase difference compensation value, wherein the preset phase mapping relation is determined according to a phase difference between the first power amplifier and the second power amplifier when the power amplifier circuit reaches a maximum output total power under different phases of different frequencies;
determining a phase difference between the first input radio frequency signal and the second input radio frequency signal according to the target phase difference compensation value.
Optionally, the processor 1010 is further configured to:
after the phase difference between the first input radio frequency signal and the second input radio frequency signal is determined, determining a target power distribution ratio corresponding to the current frequency according to a preset amplitude mapping relation of different frequencies and power distribution ratios, wherein the preset amplitude mapping relation is determined according to the power distribution ratio between the first power amplifier and the second power amplifier when the power amplifier circuit reaches the maximum output total power under phase difference compensation values corresponding to the different frequencies;
and adjusting the amplitude of the first input radio frequency signal and the amplitude of the second input radio frequency signal according to the total transmission power of the target radio frequency signal and the target power distribution ratio.
Therefore, a control voltage signal determined according to the current frequency of the radio-frequency signal can be output to the adjustable phase module corresponding to the carrier power amplifier through the radio-frequency transceiver, and the phase of one path of radio-frequency signal input to the carrier power amplifier by the radio-frequency transceiver is adjusted. By adopting the phase variable adjustment, the accurate impedance inversion within a wider working bandwidth range can be realized under the condition that the working bandwidth of the power amplifier circuit is increased, and the power amplifier circuit is ensured to work in a high-efficiency state.
Those skilled in the art will appreciate that the electronic device 1000 may further comprise a power source (e.g., a battery) for supplying power to various components, and the power source may be logically connected to the processor 1010 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system. The electronic device structure shown in fig. 11 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than those shown, or combine some components, or arrange different components, and thus, the description is not repeated here.
It should be understood that in the embodiment of the present application, the input Unit 1004 may include a Graphics Processing Unit (GPU) 10041 and a microphone 10042, and the Graphics Processing Unit 10041 processes image data of still pictures or videos obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 1006 may include a display panel 10061, and the display panel 10061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1007 includes at least one of a touch panel 10071 and other input devices 10072. The touch panel 10071 is also referred to as a touch screen. The touch panel 10071 may include two parts, a touch detection device and a touch controller. Other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.
The memory 1009 may be used to store software programs as well as various data. The memory 1009 may mainly include a first storage area storing a program or an instruction and a second storage area storing data, wherein the first storage area may store an operating system, an application program or an instruction (such as a sound playing function, an image playing function, and the like) required for at least one function, and the like. Further, the memory 1009 may include volatile memory or nonvolatile memory, or the memory 1009 may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. The volatile Memory may be a Random Access Memory (RAM), a Static Random Access Memory (Static RAM, SRAM), a Dynamic Random Access Memory (Dynamic RAM, DRAM), a Synchronous Dynamic Random Access Memory (Synchronous DRAM, SDRAM), a Double Data Rate Synchronous Dynamic Random Access Memory (Double Data Rate SDRAM, ddr SDRAM), an Enhanced Synchronous SDRAM (ESDRAM), a Synchronous Link DRAM (SLDRAM), and a Direct Memory bus RAM (DRRAM). The memory 1009 in the embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.
Processor 1010 may include one or more processing units; optionally, the processor 1010 integrates an application processor, which primarily handles operations related to the operating system, user interface, and applications, and a modem processor, which primarily handles wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into processor 1010.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A power amplifier circuit, comprising a first amplifier, a second amplifier and a first adjustable phase module,
an input end of the first amplifier is connected to a first output end of the radio frequency transceiver, a first input end of the first adjustable phase module is connected to a third output end of the radio frequency transceiver, an output end of the first amplifier is connected to a second input end of the first adjustable phase module, and an output end of the first adjustable phase module is connected to an output end of the power amplifier circuit;
an input end of the second amplifier is connected to a second output end of the radio frequency transceiver, and an output end of the second amplifier is connected to an output end of the power amplifier circuit.
2. The power amplifier circuit of claim 1, further comprising a second adjustable phase module,
a first input end of the second adjustable phase module is connected to a fourth output end of the radio frequency transceiver, a second input end of the second adjustable phase module is connected to an output end of the second power amplifier and an output end of the first adjustable phase module, respectively, and an output end of the second adjustable phase module is an output end of the power amplifier circuit.
3. The power amplifier circuit of claim 2, wherein the first and second adjustable phase modules are phase adjustable λ/4 microstrip lines.
4. A power amplifier circuit according to claim 3, wherein the phase adjustable λ/4 microstrip line comprises a variable capacitance diode.
5. The power amplifier circuit of claim 2, further comprising a first variable gain amplifier and a second variable gain amplifier,
the first variable gain amplifier is disposed between a third output of the radio frequency transceiver and the first input of the first adjustable phase module, and the second variable gain amplifier is disposed between a fourth output of the radio frequency transceiver and the first input of the second adjustable phase module.
6. A radio frequency circuit comprising a radio frequency transceiver, a power supply module, a network signal module and an antenna module, the network signal module comprising the power amplifier circuit of any one of claims 1 to 5,
the input end of the first power amplifier is connected with the first output end of the radio frequency transceiver, the input end of the second power amplifier is connected with the second output end of the radio frequency transceiver, the output end of the power amplifier circuit is connected with the antenna module, and the power supply module is connected with the power amplifier circuit.
7. An electronic device comprising a power amplifier circuit according to any one of claims 1 to 5 or comprising a radio frequency circuit according to claim 6.
8. A method for adjusting a radio frequency signal, applied to the power amplifier circuit of any one of claims 1 to 5, the method comprising:
determining a control voltage signal according to the current frequency of a target radio frequency signal transmitted by the radio frequency transceiver;
and controlling the radio frequency transceiver to output the control voltage signal to the first adjustable phase module so as to control the first adjustable phase module to adjust the phase of the first radio frequency signal output by the first power amplifier.
9. The method of claim 8, wherein determining a control voltage signal based on a current frequency of a target radio frequency signal transmitted by the radio frequency transceiver comprises:
acquiring a phase value of the target radio frequency signal under a preset frequency as a reference value;
determining a required phase value of the current frequency of the target radio frequency signal according to the preset frequency and the reference value;
determining a voltage value corresponding to the required phase value according to a preset mapping relation between different phase values and the voltage value;
determining the control voltage signal according to the voltage value.
10. An rf signal conditioning device for use in the power amplifier circuit of any one of claims 1 to 5, the device comprising:
the determining module is used for determining a control voltage signal according to the current frequency of a target radio frequency signal transmitted by the radio frequency transceiver;
the control module is configured to control the radio frequency transceiver to output the control voltage signal to the first adjustable phase module, so as to control the first adjustable phase module to adjust a phase of a first radio frequency signal output by the first power amplifier.
CN202210528910.1A 2022-05-16 2022-05-16 Power amplifier circuit, radio frequency circuit, electronic device, and adjustment method Pending CN114978064A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210528910.1A CN114978064A (en) 2022-05-16 2022-05-16 Power amplifier circuit, radio frequency circuit, electronic device, and adjustment method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210528910.1A CN114978064A (en) 2022-05-16 2022-05-16 Power amplifier circuit, radio frequency circuit, electronic device, and adjustment method

Publications (1)

Publication Number Publication Date
CN114978064A true CN114978064A (en) 2022-08-30

Family

ID=82984270

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210528910.1A Pending CN114978064A (en) 2022-05-16 2022-05-16 Power amplifier circuit, radio frequency circuit, electronic device, and adjustment method

Country Status (1)

Country Link
CN (1) CN114978064A (en)

Similar Documents

Publication Publication Date Title
US9762416B2 (en) Reflection coefficient reader
CN106533473B (en) A kind of radio frequency cancellation system and radio frequency for continuous wave radar offsets method
CN102195567B (en) Power amplifier linearization feedback methods and systems
EP1875621B1 (en) System and method for dynamic impedance tuning to minimize return loss
US6297696B1 (en) Optimized power amplifier
US20090098831A1 (en) Dual band radio frequency transmitter
US20070149146A1 (en) Apparatus for automatically matching frequency of antenna in wireless terminal and method of using the same
CN105703719A (en) Method and apparatus for correcting inconvenient power amplifier load characteristics in an envelope tracking based system
US20070135062A1 (en) Apparatus for automatically matching frequency of antenna in wireless terminal and method thereof
US10715091B2 (en) Low-noise amplifier supporting beam-forming function and receiver including the same
JP7247039B2 (en) amplifier circuit
CN107645299A (en) Adaptation control circuit and control method for adaptive interference cancellation device
US10707906B2 (en) Radio frequency transmission circuit, circuit matching method and computer storage medium
JP2016001865A (en) Detection calibration circuit and transmitter
CN114499575B (en) Radio frequency power amplifier, module, electronic equipment, signal processing method and device
JP2007060455A (en) Transmitter
US6983133B2 (en) Linearization apparatus for linear automatic gain control in a mobile communication terminal and method for controlling the same
US7046972B2 (en) Predistortion linearizer and predistortion distortion compensation method, program, and medium
CN114978064A (en) Power amplifier circuit, radio frequency circuit, electronic device, and adjustment method
KR102232377B1 (en) Wireless transmitting/receiving apparatus based on feedforward and operating method thereof
US7772922B1 (en) Method and system for testing data signal amplifier having output signal power dependent upon multiple power control parameters
CN115664453A (en) Radio frequency circuit, control method and device, electronic equipment and readable storage medium
CN111212436A (en) Gain calibration method, device, computer equipment and storage medium
CN106953604B (en) Low-noise amplifier and mobile terminal
CN103229421A (en) Transmission power control circuit and transmission device, transmission power control method, program

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination