CN104640011A - Dual-frequency power amplification device applied to AP (access point) and AP equipment - Google Patents
Dual-frequency power amplification device applied to AP (access point) and AP equipment Download PDFInfo
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- CN104640011A CN104640011A CN201410765345.6A CN201410765345A CN104640011A CN 104640011 A CN104640011 A CN 104640011A CN 201410765345 A CN201410765345 A CN 201410765345A CN 104640011 A CN104640011 A CN 104640011A
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Abstract
The invention provides a dual-frequency power amplification device applied to an AP (access point) and AP equipment. The dual-frequency power amplification device comprises a first switch, a 2.4G power amplification module and a 5G power amplification module. The first switch is used for being connected with the 2.4G power amplification module when a radio-frequency signal transmitted by a main chip of the AP is a 2.4G frequency-band radio-frequency signal and transmitting the 2.4G frequency-band radio-frequency signal to the 2.4G power amplification module, and the 2.4G power amplification module amplifies the 2.4G frequency-band radio-frequency signal; or, when the radio-frequency signal transmitted by the main chip of the AP is a 5G frequency-band radio frequency signal, the first switch is connected with the 5G power amplification module and transmits the 5G frequency-band radio frequency signal to the 5G power amplification module, and the 5G frequency-band radio frequency signal is amplified by the 5G power amplification module. The device is compatible to 2.4G and 5G frequency-band power amplification circuits.
Description
Technical field
The present invention relates to field of wireless, particularly relate to a kind of the double frequency power amplification device and the AP equipment that are applied to AP.
Background technology
Increasingly mature along with radio network technique, wireless network accept by increasing enterprise customer.Wireless network development in every respect, reaches enterprises and individuals to the omnibearing demand of use wireless network.AP (Access Point, WAP (wireless access point)) is the core of wireless network, its PA had (Power Amplifier, power amplifier) function, wireless signal can be amplified, be transmitted into peripheral space, so that provide wireless service for user.Wireless network works in 2.4G frequency range or 5G frequency range usually, and when terminal is in these two frequency range coverages, wireless user can use because carrying out switching in these two frequency ranges.
In prior art, in AP, the power consumption of power amplifier is high, and only can carry out power amplifier to a kind of signal of frequency range in an AP, so, be separate layout to 2.4G band circuitry and 5G band circuitry in AP.
To sum up, the signal of different frequency range separates layout and carries out power amplifier, this not only causes the waste of layout resource in wireless network, more make the use flexibility of wireless network poor, dodge in the occupied rear very difficult realization switching of some frequency range, so need can the power amplification device of compatible 2.4G frequency range and 5G frequency range.
Summary of the invention
The object of this invention is to provide a kind of the double frequency power amplification device and the AP equipment that are applied to AP, cannot the problem of compatible 2.4G frequency range and 5G frequency range to overcome in correlation technique.
The invention provides a kind of double frequency power amplification device being applied to AP, comprise the first diverter switch, 2.4G power amplifier module, 5G power amplifier module, wherein:
Described first diverter switch is used for when the radiofrequency signal that the master chip of described AP is launched is 2.4G frequency range radiofrequency signal, connect described 2.4G power amplifier module, described 2.4G frequency range radiofrequency signal is inputed to described 2.4G power amplifier module, by described 2.4G power amplifier module, described 2.4G frequency range radiofrequency signal is amplified; Or,
When the radiofrequency signal that the master chip of described AP is launched is 5G frequency range radiofrequency signal, connect described 5G power amplifier module, described 5G frequency range radiofrequency signal is inputed to described 5G power amplifier module, by described 5G power amplifier module, described 5G frequency range radiofrequency signal is amplified.
Wherein, in one embodiment, described 2.4G power amplifier module and described 5G power amplifier module comprise following submodule respectively: power division submodule, main power amplifier submodule, peak value power amplifier submodule, impedance transformation submodule, coupling submodule; Wherein, described 2.4G power amplifier module and described 5G power amplifier module share described coupling submodule;
Described power division submodule for receiving the radiofrequency signal come by described first diverter switch transmission, and carries out power division to described radiofrequency signal, to obtain main power amplifier signal and its peak work discharge signal; And main power amplifier signal is exported to described main power amplifier submodule, described its peak work discharge signal is exported to described peak value power amplifier submodule;
Described main power amplifier submodule exports to described impedance transformation submodule after carrying out amplification process to described main power amplifier signal;
Described peak value power amplifier submodule exports to described impedance transformation submodule after carrying out amplification process to described its peak work discharge signal;
Described impedance transformation submodule is used for carrying out impedance matching, and the signal received from described main power amplifier submodule and described peak value power amplifier submodule is exported to described coupling submodule;
Described coupling submodule is used for being coupled to the received signal.
Wherein, in one embodiment, described device also comprises
Second and the 3rd diverter switch;
Main power amplifier submodule in 2.4G and 5G power amplifier module comprises respectively with lower unit: main power amplifier Input matching unit, main power amplifier unit, main power amplifier output matching unit, main power amplifier λ/4 wavelength line; And 2.4G and 5G power amplifier module shares described main power amplifier unit; Wherein:
After first diverter switch received RF signal, connect the power division submodule corresponding with the radiofrequency signal received;
Described power division submodule carries out power division to described radiofrequency signal, after obtaining main power amplifier signal, main power amplifier signal is exported to described main power amplifier Input matching unit;
Described main power amplifier Input matching unit is used for carrying out impedance matching, and the main power amplifier signal obtained from described power division submodule is exported to described main power amplifier unit by the second diverter switch; (I Understand for the meaning of 1. these Input matchings, but listen a little monster, and match circuit is exactly a bridge in fact, and his entrance and exit width is different, and he has been exactly the effect that a transition regulates, and avoids change in the instantaneous impedance.)
Described main power amplifier unit is used for amplifying main power amplifier signal, and by the 3rd diverter switch, the main power amplifier signal after process is exported to corresponding main power amplifier output matching unit;
Described main power amplifier output matching unit is used for carrying out impedance matching, and the signal obtained from described main power amplifier unit is exported to described main power amplifier λ/4 wavelength line;
After described main power amplifier λ/4 wavelength line carries out phase compensation to main power amplifier signal, export to described impedance transformation submodule.
Wherein, in one embodiment, described device also comprises:
4th and the 5th diverter switch;
Peak value power amplifier submodule in 2.4G and 5G power amplifier module comprises respectively with lower unit: peak value power amplifier λ/4 wavelength line, peak value power amplifier Input matching unit, peak value power amplifier unit, peak value power amplifier output matching unit; And 2.4G and 5G power amplifier module shares described peak value power amplifier unit;
Described power division submodule carries out power division to described radiofrequency signal, after obtaining its peak work discharge signal, its peak work discharge signal is exported to described peak value power amplifier λ/4 wavelength line;
Described peak value power amplifier λ/4 wavelength line carries out phase compensation to described its peak work discharge signal, then exports to described peak value power amplifier Input matching unit after receiving its peak work discharge signal of described power division submodule output;
Described peak value power amplifier Input matching unit is used for carrying out impedance matching, and its peak work discharge signal obtained from described peak value power amplifier λ/4 wavelength line is exported to described peak value power amplifier unit by the 4th diverter switch;
Described peak value power amplifier unit is used for amplifying its peak work discharge signal, and exports to corresponding peak value power amplifier output matching unit by the 5th diverter switch;
Described peak value power amplifier output matching unit is used for carrying out impedance matching, and the signal obtained from described peak value power amplifier unit is exported to described impedance transformation submodule.
Wherein, in one embodiment, described device also comprises:
6th diverter switch;
Described 6th diverter switch is for connecting the impedance transformation submodule of described 2.4G power amplifier module and 2.4G frequency range radiofrequency signal being exported to described coupling submodule; Or,
Connect the impedance transformation submodule of described 5G power amplifier module and 5G frequency range radiofrequency signal is exported to described coupling submodule.
Wherein, in one embodiment, described 5G frequency range radiofrequency signal comprises at least two default sub-radio bands;
Described device also comprises:
The main power amplifier impedance adjustment unit in parallel with the main power amplifier output matching unit in described 5G main power amplifier submodule, the peak value power amplifier impedance adjustment unit in parallel with the peak value power amplifier output matching unit in described 5G main power amplifier submodule;
Described main power amplifier impedance adjustment unit is used for the scope according to pending default sub-radio band, regulate the impedance of described main power amplifier output matching unit, produce resonance to make the described operating frequency of main power amplifier output matching unit and the frequency of pending default sub-radio band;
Described peak value power amplifier impedance adjustment unit is used for the scope according to pending default sub-radio band, regulate the impedance of described peak value power amplifier output matching unit, produce resonance to make the described operating frequency of peak value power amplifier output matching unit and the frequency of pending default sub-radio band.
Wherein, in one embodiment, described power division submodule is used for radiofrequency signal to be assigned as main power amplifier signal and its peak work discharge signal, and the power of described main power amplifier signal is greater than described its peak work discharge signal.
Wherein, in one embodiment, described power division submodule comprises merit subdivision and attenuation units;
Described merit subdivision is used for radiofrequency signal to be assigned as the identical main power amplifier signal of power and its peak work discharge signal, and its peak work discharge signal is exported to attenuation units;
Described attenuation units is used for decaying its peak work discharge signal after forming decay to its peak work discharge signal.
Wherein, in one embodiment, described attenuation units is PIN pipe.
The present invention also provides a kind of wireless access point AP equipment, comprise right want above-mentioned in arbitrary described device.
The present invention at least has following beneficial effect: by introducing diverter switch, the circuit part that 2.4G frequency range power amplifier and 5G frequency range power amplifier can merge is combined, form the power amplifier of an available work at double frequency, compare the resource when scheme of separating layout with 2.4G frequency range power amplifier in prior art and 5G frequency range power amplifier can save circuit layout more, and define the power amplifier that can adapt to different frequency range signal, thus achieve the compatibility to 2.4G frequency range and 5G frequency range.Pass through, radiofrequency signal be divided into main power amplifier signal and its peak work discharge signal two paths of signals to carry out amplification respectively and remerge, effectively can reduce the power consumption of power amplification device relative to category-A or category-B power amplifier.
Should be understood that, it is only exemplary and explanatory that above general description and details hereinafter describe, and can not limit the present invention.
Accompanying drawing explanation
Fig. 1 is one of schematic diagram of the double frequency power amplification device being applied to AP in the embodiment of the present invention;
Fig. 2 is the schematic diagram two of the double frequency power amplification device being applied to AP in the embodiment of the present invention;
Fig. 3 is the schematic diagram three of the double frequency power amplification device being applied to AP in the embodiment of the present invention;
Fig. 4 is the schematic diagram of main power amplifier impedance adjustment unit in the embodiment of the present invention;
Fig. 5 is the schematic diagram of attenuation units in the embodiment of the present invention.
Embodiment
Below in conjunction with Figure of description, the preferred embodiments of the present invention are described, be to be understood that, preferred embodiment described herein is only for instruction and explanation of the present invention, be not intended to limit the present invention, and when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
The embodiment of the present invention provides a kind of double frequency power amplification device being applied to AP, in the apparatus, by introducing diverter switch, the circuit part that 2.4G frequency range power amplifier and 5G frequency range power amplifier can merge is combined, form the power amplifier that can be operated in double frequency, compare the resource when scheme of separating layout with 2.4G frequency range power amplifier in prior art and 5G frequency range power amplifier can save circuit layout more, and define the power amplifier that can adapt to different frequency range signal, thus achieve the compatibility to 2.4G frequency range and 5G frequency range.In addition, in the embodiment of the present invention, power amplification device comprises main power amplifier and peak value power amplifier, makes double frequency power amplifier in the embodiment of the present invention can realize lower power consumption by peak value power amplifier load balance factor.Below the double frequency power amplification device being applied to AP in the embodiment of the present invention is described in detail.
Embodiment one
As shown in Figure 1, be the schematic diagram being applied to the double frequency power amplification device of AP provided in the embodiment of the present invention, comprise the first diverter switch 100,2.4G power amplifier module 200,5G power amplifier module 300, wherein:
Described first diverter switch is used for when the radiofrequency signal that the master chip of described AP is launched is 2.4G frequency range radiofrequency signal, connect described 2.4G power amplifier module, described 2.4G frequency range radiofrequency signal is inputed to described 2.4G power amplifier module, by described 2.4G power amplifier module, described 2.4G frequency range radiofrequency signal is amplified; Or,
When the radiofrequency signal that the master chip of described AP is launched is 5G frequency range radiofrequency signal, connect described 5G power amplifier module, described 5G frequency range radiofrequency signal is inputed to described 5G power amplifier module, by described 5G power amplifier module, described 5G frequency range radiofrequency signal is amplified.
In the embodiment of the present invention, by the first diverter switch, realize the radiofrequency signal that can receive the transmitting of same AP master chip, realize the compatibility of 2.4G frequency band signals circuit and 5G frequency band signals circuit.
Wherein, in one embodiment, for realizing the power consumption reducing AP further, as shown in Figure 2, it should be noted that, in fig. 2, for the ease of distinguishing each unit of 2.4G power amplifier module, with each unit of 5G power amplifier module, the power amplifier module that 2.4G or 5G belongs to clearly each unit is added before the title of each unit or submodule, the expression such as, adding 2.4G before title belongs to 2.4G power amplifier module, the expression adding 5G before title belongs to 5G power amplifier module, do not add 2.4G's or 5G before title, represent the part that 2.4G power amplifier module and 5G power amplifier module share.
In fig. 2, described 2.4G power amplifier module comprises following submodule: power division submodule 201, main power amplifier submodule 202, peak value power amplifier submodule 203, impedance transformation submodule 204, coupling submodule 400; Wherein, described 2.4G power amplifier module and described 5G power amplifier module share described coupling submodule 400;
Described 5G power amplifier module comprises following submodule: power division submodule 301, main power amplifier submodule 302, peak value power amplifier submodule 303, impedance transformation submodule 304, coupling submodule 400; Wherein, described 2.4G power amplifier module and described 5G power amplifier module share described coupling submodule 400.
In 2.4G power amplifier module:
Described power division submodule 201 transmits by described first diverter switch 100 the 2.4G frequency range radiofrequency signal of coming for receiving, and carries out power division to described 2.4G frequency range radiofrequency signal, to obtain main power amplifier signal and its peak work discharge signal; And main power amplifier signal is exported to described main power amplifier submodule 202, described its peak work discharge signal is exported to described peak value power amplifier submodule 203;
Described main power amplifier submodule 202 exports to described impedance transformation submodule 204 after carrying out amplification process to described main power amplifier signal;
Described peak value power amplifier submodule 203 exports to described impedance transformation submodule 204 after carrying out amplification process to described its peak work discharge signal;
The signal received from described main power amplifier submodule 202 and described peak value power amplifier submodule 203 for carrying out impedance matching, and is exported to described coupling submodule 400 by described impedance transformation submodule 204;
Described coupling submodule 400 is for being coupled to the received signal.
Wherein, main power amplifier submodule can be used as category-A or category-B power amplifier, and peak value power amplifier submodule is C class power amplifier.
Wherein, in 5G power amplifier module, the effect of each submodule is identical with the effect of each submodule in 2.4G module, namely in 5G power amplifier module:
Described power division submodule 301 transmits by described first diverter switch 100 the 5G frequency range radiofrequency signal of coming for receiving, and carries out power division to described 5G frequency range radiofrequency signal, to obtain main power amplifier signal and its peak work discharge signal; And main power amplifier signal is exported to described main power amplifier submodule 302, described its peak work discharge signal is exported to described peak value power amplifier submodule 303;
Described main power amplifier submodule 302 exports to described impedance transformation submodule 304 after carrying out amplification process to described main power amplifier signal;
Described peak value power amplifier submodule 203 exports to described impedance transformation submodule 304 after carrying out amplification process to described its peak work discharge signal;
The signal received from described main power amplifier submodule 202 and described peak value power amplifier submodule 303 for carrying out impedance matching, and is exported to described coupling submodule 400 by described impedance transformation submodule 304;
Described coupling submodule 400 is for being coupled to the received signal.
Wherein, main power amplifier submodule can be used as category-A or category-B power amplifier, and peak value power amplifier submodule is C class power amplifier.
Wherein, in one embodiment, radiofrequency signal can be assigned as main power amplifier signal and its peak work discharge signal of constant power by the power division submodule of each power amplifier module, also radiofrequency signal can be assigned as main power amplifier signal and its peak work discharge signal of unequal power, wherein, when carrying out the distribution of unequal power, the power of main power amplifier signal is greater than the power of its peak work discharge signal.
In the embodiment of the present invention, by radiofrequency signal being assigned as main power amplifier signal and its peak work discharge signal, remerge after amplifying respectively.The circuit of main power amplifier submodule and the cooperating of peak value power amplifier submodular circuits, can realize the power consumption reducing power amplification device, thus reduce the power consumption of AP.When signal is less, the circuit working of main power amplifier submodule, the circuit of peak value power amplifier submodule does not work, when input signal progressively becomes large time, peak value power amplifier submodule is also just progressively opened, under peak value power amplifier submodular circuits and main power amplifier submodular circuits all reach capacity state status, main power amplifier submodule also just reaches maximum output, thus achieves by high efficiency to high-power output.
Wherein, in one embodiment, as shown in Figure 3, it should be noted that, in figure 3, for the ease of distinguishing each unit of 2.4G power amplifier module, with each unit of 5G power amplifier module, the power amplifier module that 2.4G or 5G belongs to clearly each unit is added before the title of each unit or submodule, the expression such as, adding 2.4G before title belongs to 2.4G power amplifier module, the expression adding 5G before title belongs to 5G power amplifier module, does not add 2.4G or 5G, represent the part that 2.4G power amplifier module and 5G power amplifier module share before title.
In the diagram shown in figure 3, separately design in two power amplifier modules the part of frequency sensitive, adopt to the insensitive part of frequency the form shared, to realize the compatibility of 2.4G frequency range radiofrequency signal and 5G frequency range radiofrequency signal circuit, described device also comprises
Second diverter switch 500 and the 3rd diverter switch 600;
Main power amplifier submodule 202 in 2.4G power amplifier module comprises with lower unit: main power amplifier Input matching unit 2021, main power amplifier unit 2022, main power amplifier output matching unit 2023, main power amplifier λ/4 wavelength line 2024; And 2.4G and 5G power amplifier module shares described main power amplifier unit 2022;
Main power amplifier submodule in 5G power amplifier module comprises with lower unit: main power amplifier Input matching unit 3021, main power amplifier unit 2022, main power amplifier output matching unit 3023, main power amplifier λ/4 wavelength line 3024; And 2.4G and 5G power amplifier module shares described main power amplifier unit 2022;
Wherein, when radiofrequency signal is 2.4G frequency range radiofrequency signal, each diverter switch connects 2.4G power amplifier module, during the work of 2.4G power amplifier module:
After first diverter switch receives 2.4G frequency range radiofrequency signal, connect the power division submodule 201 with 2.4G power amplifier module;
Described power division submodule 201 carries out power division to described 2.4G frequency range radiofrequency signal, after obtaining main power amplifier signal, main power amplifier signal is exported to described main power amplifier Input matching unit 2021;
Described main power amplifier Input matching 2021 unit is used for carrying out impedance matching, and the main power amplifier signal obtained from described power division submodule 201 is exported to described main power amplifier unit 2022 by the second diverter switch 500;
Wherein, here it should be noted that, master chip and the signal source of main power amplifier Input matching unit and AP carry out impedance matching, to make the output impedance of main power amplifier Input matching unit and the input impedance of main power amplifier unit and the impedance matching of signal source, thus gain that can be higher to main power amplifier signal acquisition.
Main power amplifier signal after process for amplifying main power amplifier signal, and is exported to corresponding main power amplifier output matching unit 2023 by the 3rd diverter switch 600 by described main power amplifier unit 2022;
The signal obtained from described main power amplifier unit for carrying out impedance matching, and is exported to described main power amplifier λ/4 wavelength line 2024 by described main power amplifier output matching unit 2023;
Wherein, it should be noted that, master chip and the signal source of main power amplifier output matching unit and AP carry out impedance matching, to make the main output impedance of power amplifier output matching unit and the impedance matching of signal source, thus make the output impedance of winner's power amplifier submodule and the impedance matching of signal source, so that main power amplifier submodule can be made to obtain higher power output.
After described main power amplifier λ/4 wavelength line 2024 carries out phase compensation to main power amplifier signal, export to described impedance transformation submodule 204.
Wherein, because the frequency of the radiofrequency signal of process is different, therefore the length of main power amplifier λ/4 wavelength line of 2.4G power amplifier module is different from the length of main power amplifier λ/4 wavelength line of 5G power amplifier module.
Wherein, when radiofrequency signal is 5G frequency range radiofrequency signal, each diverter switch connects 5G power amplifier module, during the work of 5G power amplifier module:
After first diverter switch receives 5G frequency range radiofrequency signal, connect the power division submodule 301 with 5G power amplifier module;
Described power division submodule 301 carries out power division to described 5G frequency range radiofrequency signal, after obtaining main power amplifier signal, main power amplifier signal is exported to described main power amplifier Input matching unit 3021;
Described main power amplifier Input matching 3021 unit is used for carrying out impedance matching, and the main power amplifier signal obtained from described power division submodule 301 is exported to described main power amplifier unit 3022 by the second diverter switch 500;
Wherein, here it should be noted that, master chip and the signal source of main power amplifier Input matching unit and AP carry out impedance matching, to make the output impedance of main power amplifier Input matching unit and the input impedance of main power amplifier unit and the impedance matching of signal source, thus gain that can be higher to main power amplifier signal acquisition.
Main power amplifier signal after process for amplifying main power amplifier signal, and is exported to corresponding main power amplifier output matching unit 3023 by the 3rd diverter switch 600 by described main power amplifier unit 2022;
The signal obtained from described main power amplifier unit for carrying out impedance matching, and is exported to described main power amplifier λ/4 wavelength line 3024 by described main power amplifier output matching unit 3023;
Wherein, it should be noted that, master chip and the signal source of main power amplifier output matching unit and AP carry out impedance matching, to make the main output impedance of power amplifier output matching unit and the impedance matching of signal source, thus make the output impedance of winner's power amplifier submodule and the impedance matching of signal source, so that main power amplifier submodule can be made to obtain higher power output.
After described main power amplifier λ/4 wavelength line 3024 carries out phase compensation to main power amplifier signal, export to described impedance transformation submodule 304.
Wherein, because the frequency of the radiofrequency signal of process is different, therefore the length of main power amplifier λ/4 wavelength line of 2.4G power amplifier module is different from the length of main power amplifier λ/4 wavelength line of 5G power amplifier module.
In the embodiment of the present invention, the circuit part that 2.4G frequency range and 5G frequency range can be shared by diverter switch realizes sharing, and is conducive to the compatibility realizing 2.4G frequency range and 5G frequency range.
Wherein, in one embodiment, as shown in Figure 3, described device also comprises:
4th diverter switch 700 and the 5th diverter switch 800;
Peak value power amplifier submodule in 2.4G power amplifier module comprises with lower unit: peak value power amplifier λ/4 wavelength line 2031, peak value power amplifier Input matching unit 2032, peak value power amplifier unit 2033, peak value power amplifier output matching unit 2034; And 2.4G and 5G power amplifier module shares described peak value power amplifier unit 2033;
Peak value power amplifier submodule in 5G power amplifier module comprises with lower unit: peak value power amplifier λ/4 wavelength line 3031, peak value power amplifier Input matching unit 3032, peak value power amplifier unit 2033, peak value power amplifier output matching unit 3034; And 2.4G and 5G power amplifier module shares described peak value power amplifier unit 2033;
Wherein, when radiofrequency signal is 2.4G frequency range radiofrequency signal, each diverter switch connects 2.4G power amplifier module, during the work of 2.4G power amplifier module:
Described power division submodule 201 pairs of 2.4G frequency range radiofrequency signals carry out power division, after obtaining its peak work discharge signal, its peak work discharge signal are exported to described peak value power amplifier λ/4 wavelength line 2031;
Wherein, because the frequency of the radiofrequency signal of process is different, and λ/4 wavelength line is more responsive to frequency ratio, and therefore the length of main power amplifier λ/4 wavelength line of 2.4G power amplifier module is different from the length of main power amplifier λ/4 wavelength line of 5G power amplifier module.
Described peak value power amplifier λ/4 wavelength line 2031 carries out phase compensation to described its peak work discharge signal, then exports to described peak value power amplifier Input matching unit 2032 after receiving its peak work discharge signal of described power division submodule 201 output;
Its peak work discharge signal obtained from described peak value power amplifier λ/4 wavelength line 2031 for carrying out impedance matching, and is exported to described peak value power amplifier unit 2033 by the 4th diverter switch 700 by described peak value power amplifier Input matching unit 2032.
Wherein, here it should be noted that, master chip and the signal source of peak value power amplifier Input matching unit and AP carry out impedance matching, to make the output impedance of peak value power amplifier Input matching unit and the input impedance of peak value power amplifier unit and the impedance matching of signal source, thus higher gain can be obtained to its peak work discharge signal.
Described peak value power amplifier unit 2033 for amplifying its peak work discharge signal, and exports to peak value power amplifier output matching unit 2034 by the 5th diverter switch 800;
Wherein, when the radiofrequency signal processed is 2.4G frequency range radiofrequency signal, what the 5th diverter switch was connected is the peak value power amplifier output matching unit of 2.4G power amplifier module; When the radiofrequency signal processed is 5G frequency range radiofrequency signal, what the 5th diverter switch was connected is the peak value power amplifier output matching unit of 5G power amplifier module.
The signal obtained from described peak value power amplifier unit 2033 for carrying out impedance matching, and is exported to described impedance transformation submodule 204 by described peak value power amplifier output matching unit 2034.
Wherein, in 2.4G power amplifier module, the input of 2.4G impedance transformation submodule is directly connected with 2.4G peak value power amplifier output matching unit, therefore directly 2.4G impedance transformation submodule is exported in the process of 2.4G frequency range radiofrequency signal by 2.4G peak value power amplifier output matching unit; In like manner, in 5G power amplifier module, the input of 5G impedance transformation submodule is directly connected with 5G peak value power amplifier output matching unit, therefore directly 5G frequency range radiofrequency signal is exported to 5G impedance transformation submodule by 5G peak value power amplifier output matching unit.
Wherein, when radiofrequency signal is 5G frequency range radiofrequency signal, each diverter switch connects 5G power amplifier module, during the work of 2.4G power amplifier module:
Described power division submodule 201 pairs of 5G frequency range radiofrequency signals carry out power division, after obtaining its peak work discharge signal, its peak work discharge signal are exported to described peak value power amplifier λ/4 wavelength line 3031;
Wherein, because the frequency of the radiofrequency signal of process is different, and λ/4 wavelength line is more responsive to frequency ratio, and therefore the length of main power amplifier λ/4 wavelength line of 2.4G power amplifier module is different from the length of main power amplifier λ/4 wavelength line of 5G power amplifier module.
Described peak value power amplifier λ/4 wavelength line 3031 carries out phase compensation to described its peak work discharge signal, then exports to described peak value power amplifier Input matching unit 3032 after receiving its peak work discharge signal of described power division submodule 301 output;
Its peak work discharge signal obtained from described peak value power amplifier λ/4 wavelength line 3031 for carrying out impedance matching, and is exported to described peak value power amplifier unit 2033 by the 4th diverter switch 700 by described peak value power amplifier Input matching unit 3032.
Wherein, here it should be noted that, master chip and the signal source of peak value power amplifier Input matching unit and AP carry out impedance matching, to make the output impedance of peak value power amplifier Input matching unit and the input impedance of peak value power amplifier unit and the impedance matching of signal source, thus higher gain can be obtained to its peak work discharge signal.
Described peak value power amplifier unit 2033 for amplifying its peak work discharge signal, and exports to peak value power amplifier output matching unit 3034 by the 5th diverter switch 800;
Wherein, when the radiofrequency signal processed is 2.4G frequency range radiofrequency signal, what the 5th diverter switch was connected is the peak value power amplifier output matching unit of 2.4G power amplifier module; When the radiofrequency signal processed is 5G frequency range radiofrequency signal, what the 5th diverter switch was connected is the peak value power amplifier output matching unit of 5G power amplifier module.
The signal obtained from described peak value power amplifier unit 2033 for carrying out impedance matching, and is exported to described impedance transformation submodule 304 by described peak value power amplifier output matching unit 3034.
Wherein, in 2.4G power amplifier module, the input of 2.4G impedance transformation submodule is directly connected with 2.4G peak value power amplifier output matching unit, therefore directly 2.4G impedance transformation submodule is exported in the process of 2.4G frequency range radiofrequency signal by 2.4G peak value power amplifier output matching unit; In like manner, in 5G power amplifier module, the input of 5G impedance transformation submodule is directly connected with 5G peak value power amplifier output matching unit, therefore directly 5G frequency range radiofrequency signal is exported to 5G impedance transformation submodule by 5G peak value power amplifier output matching unit.
At this, the workflow of comprehensive main power amplifier submodule and peak value power amplifier submodule can be found out, impedance transformation submodule is for ensureing that main power amplifier submodule can work under lower power consumption, by the time peak value power amplifier submodule never works to unlatching work completely, and the power amplification device be made up of main power amplifier submodule and peak value power amplifier submodule realizes the transformation from the operating state of low power consumption high efficiency to high-power operating state.
In the embodiment of the present invention, the circuit part that 2.4G frequency range and 5G frequency range can be shared by diverter switch realizes sharing, and is conducive to the compatibility realizing 2.4G frequency range and 5G frequency range.
Wherein, in one embodiment, as shown in Figure 3, described device also comprises:
6th diverter switch 900;
Described 6th diverter switch is for connecting the impedance transformation submodule of described 2.4G power amplifier module and 2.4G frequency range radiofrequency signal being exported to described coupling submodule; Or,
Connect the impedance transformation submodule of described 5G power amplifier module and 5G frequency range radiofrequency signal is exported to described coupling submodule.
In the embodiment of the present invention, the circuit part that 2.4G frequency range and 5G frequency range can be shared by diverter switch realizes sharing, and is conducive to the compatibility realizing 2.4G frequency range and 5G frequency range.
Wherein, in one embodiment, the radiofrequency signal span of 5G frequency range is larger, if support the channel of China and U.S.A simultaneously, then the signal of 5G frequency range comprises the spectral range of 5G to 5.8G, the spectral bandwidth of 800M altogether, if when having at least the impedance of to fix in main power amplifier output matching unit and peak value power amplifier output matching unit in power amplification device, then power amplification device has good power amplifier performance for the portion radio frequency signal of 5G frequency range radiofrequency signal, such as can well realize the power amplifier to 5.3G radiofrequency signal, but the power amplifier to 5.8G radiofrequency signal can not well be supported.For this reason, by realizing the impedance adjustment to main power amplifier output matching unit in the embodiment of the present invention, with the impedance adjustment to peak value power amplifier output matching unit, thus the double frequency power amplification device making the embodiment of the present invention provide can be good at as 5G frequency range radiofrequency signal carries out power amplifier, concrete, described 5G frequency range radiofrequency signal comprises at least two and presets sub-radio band; As shown in Figure 3, described device also comprises:
The main power amplifier impedance adjustment unit 305 in parallel with the main power amplifier output matching unit in described 5G main power amplifier submodule, the peak value power amplifier impedance adjustment unit 306 in parallel with the peak value power amplifier output matching unit in described 5G main power amplifier submodule;
Described main power amplifier impedance adjustment unit 305 is for the scope according to pending default sub-radio band, regulate the impedance of described main power amplifier output matching unit 3023, produce resonance to make the described operating frequency of main power amplifier output matching unit and the frequency of pending default sub-radio band;
Described peak value power amplifier impedance adjustment unit 306 is for the scope according to pending default sub-radio band, regulate the impedance of described peak value power amplifier output matching unit 3034, produce resonance to make the described operating frequency of peak value power amplifier output matching unit and the frequency of pending default sub-radio band.
Wherein, in one embodiment, the circuit structure of main power amplifier impedance adjustment subelement can be as shown in Figure 4, in Fig. 4, comprising two inductance and three variable capacitance diodes, by regulating the bias voltage of three variable capacitance diodes, thus realizing the adjustment to the impedance of main power amplifier impedance adjustment subelement, after the circuit in parallel of output matching unit, and then realize the adjustment to the impedance of output matching unit.Concrete, the radiofrequency signal of 5G frequency range can be divided into 3 frequency ranges, and by being applicable to the bias voltage of each frequency range under debugging recording, then when processing the first frequency range radiofrequency signal, by digital-to-analogue conversion module, the bias voltage of each variable capacitance diode is adjusted to the bias voltage corresponding with this frequency range, by that analogy, when processing the second frequency range radiofrequency signal, by digital-to-analogue conversion module, the bias voltage of each variable capacitance diode is adjusted to the bias voltage corresponding with this frequency range; When processing the 3rd frequency range radiofrequency signal, by digital-to-analogue conversion module, the bias voltage of each variable capacitance diode being adjusted to the bias voltage corresponding with this frequency range, realizing thus, to the adjustment of impedance.
It should be noted that, the circuit structure of peak value power amplifier impedance adjustment unit can be identical with the circuit structure shown in Fig. 4, concrete, the radiofrequency signal of 5G frequency range can be divided into 3 frequency ranges, and by being applicable to the bias voltage of each frequency range under debugging recording, then when processing the first frequency range radiofrequency signal, by digital-to-analogue conversion module, the bias voltage of each variable capacitance diode is adjusted to the bias voltage corresponding with this frequency range, by that analogy, when processing the second frequency range radiofrequency signal, by digital-to-analogue conversion module, the bias voltage of each variable capacitance diode is adjusted to the bias voltage corresponding with this frequency range, when processing the 3rd frequency range radiofrequency signal, by digital-to-analogue conversion module, the bias voltage of each variable capacitance diode being adjusted to the bias voltage corresponding with this frequency range, realizing thus, to the adjustment of impedance.
It should be noted that, Fig. 4 is only for explaining the present invention, be not intended to limit the present invention, any impedance can passing through regulation output matching unit, realize the 5G signal being applicable to different frequency, the circuit structure that this signal effectively amplifies all is applicable to the embodiment of the present invention, and the present invention does not limit this.
Wherein, in one embodiment, along with the development of technology, for radiofrequency signal (comprising 2.4G frequency range radiofrequency signal and 5G frequency range radiofrequency signal), not unique in signal madulation mode, namely there is Different Modulations, thus, different modulation systems can produce different peak-to-average force ratios, therefore, in order to adapt to different peak-to-average force ratios, can better amplify by radio frequency signal, described power division submodule is used for the peak-to-average force ratio according to radiofrequency signal, described radiofrequency signal is assigned as main power amplifier signal and described its peak work discharge signal.
Wherein, in one embodiment, because diverter switch has certain resistance, therefore will certainly the power of loss radiofrequency signal, therefore for compensating the loss that diverter switch radio frequency signal causes, as shown in Figure 3, before the first diverter switch, gain unit 1000 is increased, the radiofrequency signal of launching for the master chip receiving AP also after radio frequency signal amplifies, exports to the first diverter switch 100.
Wherein, in one embodiment, as shown in Figure 3, for realizing the not decile according to different peak-to-average force ratio radio frequency signal powers, and the power division that can effectively control between main power amplifier signal and its peak work discharge signal, the power division submodule 201 of described 2.4G power amplifier module comprises merit subdivision 2011 and attenuation units 2012;
The power division submodule 301 of described 5G power amplifier module comprises merit subdivision 3011 and attenuation units 3012;
Described merit subdivision is used for radiofrequency signal to be assigned as the identical main power amplifier signal of power and its peak work discharge signal, and its peak work discharge signal is exported to attenuation units;
Described attenuation units is used for decaying its peak work discharge signal after forming decay to its peak work discharge signal.
Wherein, in one embodiment, described attenuation units is PIN pipe.Such as, as shown in Figure 5, in the embodiment of the present invention, exemplary circuit diagram its peak work discharge signal decayed by PIN pipe.By the bias voltage of control PIN pipe, thus control attenuation process, make the power division of winner's power amplifier signal and its peak work discharge signal two paths of signals, on the other hand, by the bias voltage of control PIN pipe, realize controlling PIN pipe open-interval, thus effectively can control its peak work and decontrol the time of opening.Therefore, the bias voltage of the PIN pipe under required peak-to-average force ratio can be recorded by the circuit described in Fig. 5, then by the bias voltage of digital-to-analogue conversion module by control PIN pipe, thus realize the control of radio frequency signal power distribution, and open-interval control is put to its peak work.
It should be noted that, Fig. 5 is only for explaining the present invention, be not intended to limit the present invention, anyly damping peak power amplifier signal can be passed through, the circuit structure realizing controlling the power of main power amplifier signal and the power proportions of its peak work discharge signal is all applicable to the embodiment of the present invention, and the present invention does not limit this.
Wherein, in one embodiment, amplified by main power amplifier submodule and peak value power amplifier submodule radio frequency signal, although can power consumption be reduced relative to category-A power amplifier or category-B power amplifier, but can impact the linear requirements of power amplification device, therefore, for improving the linear of double frequency power amplification device, as shown in Figure 3, feedback circuit is added at coupling submodule, make the signal feedback after the coupling of coupling submodule to the master chip of AP, and in the master chip of AP, compensated the linear deterioration of power amplifier by digital pre-distortion.
On the other hand, also provide a kind of AP equipment in the embodiment of the present invention, this AP equipment comprises the arbitrary middle double frequency power amplification device of foregoing description.Wherein, the concrete mode of the operation of the execution of each device has been described in detail in about the embodiment of the method, will not elaborate explanation herein.
Those skilled in the art should understand, although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (11)
1. be applied to a double frequency power amplification device of AP, it is characterized in that, comprise the first diverter switch, 2.4G power amplifier module, 5G power amplifier module, wherein:
Described first diverter switch is used for when the radiofrequency signal that the master chip of described AP is launched is 2.4G frequency range radiofrequency signal, connect described 2.4G power amplifier module, described 2.4G frequency range radiofrequency signal is inputed to described 2.4G power amplifier module, by described 2.4G power amplifier module, described 2.4G frequency range radiofrequency signal is amplified; Or,
When the radiofrequency signal that the master chip of described AP is launched is 5G frequency range radiofrequency signal, connect described 5G power amplifier module, described 5G frequency range radiofrequency signal is inputed to described 5G power amplifier module, by described 5G power amplifier module, described 5G frequency range radiofrequency signal is amplified.
2. device according to claim 1, is characterized in that,
Described 2.4G power amplifier module and described 5G power amplifier module comprise following submodule respectively: power division submodule, main power amplifier submodule, peak value power amplifier submodule, impedance transformation submodule, coupling submodule; Wherein, described 2.4G power amplifier module and described 5G power amplifier module share described coupling submodule;
Described power division submodule for receiving the radiofrequency signal come by described first diverter switch transmission, and carries out power division to described radiofrequency signal, to obtain main power amplifier signal and its peak work discharge signal; And main power amplifier signal is exported to described main power amplifier submodule, described its peak work discharge signal is exported to described peak value power amplifier submodule;
Described main power amplifier submodule exports to described impedance transformation submodule after carrying out amplification process to described main power amplifier signal;
Described peak value power amplifier submodule exports to described impedance transformation submodule after carrying out amplification process to described its peak work discharge signal;
Described impedance transformation submodule is used for carrying out impedance matching, and the signal received from described main power amplifier submodule and described peak value power amplifier submodule is exported to described coupling submodule;
Described coupling submodule is used for being coupled to the received signal.
3. device according to claim 2, is characterized in that, described device also comprises
Second and the 3rd diverter switch;
Main power amplifier submodule in 2.4G and 5G power amplifier module comprises respectively with lower unit: main power amplifier Input matching unit, main power amplifier unit, main power amplifier output matching unit, main power amplifier λ/4 wavelength line; And 2.4G and 5G power amplifier module shares described main power amplifier unit; Wherein:
After first diverter switch received RF signal, connect the power division submodule corresponding with the radiofrequency signal received;
Described power division submodule carries out power division to described radiofrequency signal, after obtaining main power amplifier signal, main power amplifier signal is exported to described main power amplifier Input matching unit;
Described main power amplifier Input matching unit is used for carrying out impedance matching, and the main power amplifier signal obtained from described power division submodule is exported to described main power amplifier unit by the second diverter switch; (I Understand for the meaning of 1. these Input matchings, but listen a little monster, and match circuit is exactly a bridge in fact, and his entrance and exit width is different, and he has been exactly the effect that a transition regulates, and avoids change in the instantaneous impedance.)
Described main power amplifier unit is used for amplifying main power amplifier signal, and by the 3rd diverter switch, the main power amplifier signal after process is exported to corresponding main power amplifier output matching unit;
Described main power amplifier output matching unit is used for carrying out impedance matching, and the signal obtained from described main power amplifier unit is exported to described main power amplifier λ/4 wavelength line;
After described main power amplifier λ/4 wavelength line carries out phase compensation to main power amplifier signal, export to described impedance transformation submodule.
4. device according to claim 3, is characterized in that, described device also comprises:
4th and the 5th diverter switch;
Peak value power amplifier submodule in 2.4G and 5G power amplifier module comprises respectively with lower unit: peak value power amplifier λ/4 wavelength line, peak value power amplifier Input matching unit, peak value power amplifier unit, peak value power amplifier output matching unit; And 2.4G and 5G power amplifier module shares described peak value power amplifier unit;
Described power division submodule carries out power division to described radiofrequency signal, after obtaining its peak work discharge signal, its peak work discharge signal is exported to described peak value power amplifier λ/4 wavelength line;
Described peak value power amplifier λ/4 wavelength line carries out phase compensation to described its peak work discharge signal, then exports to described peak value power amplifier Input matching unit after receiving its peak work discharge signal of described power division submodule output;
Described peak value power amplifier Input matching unit is used for carrying out impedance matching, and its peak work discharge signal obtained from described peak value power amplifier λ/4 wavelength line is exported to described peak value power amplifier unit by the 4th diverter switch;
Described peak value power amplifier unit is used for amplifying its peak work discharge signal, and exports to corresponding peak value power amplifier output matching unit by the 5th diverter switch;
Described peak value power amplifier output matching unit is used for carrying out impedance matching, and the signal obtained from described peak value power amplifier unit is exported to described impedance transformation submodule.
5. device according to claim 4, is characterized in that, described device also comprises:
6th diverter switch;
Described 6th diverter switch is for connecting the impedance transformation submodule of described 2.4G power amplifier module and 2.4G frequency range radiofrequency signal being exported to described coupling submodule; Or,
Connect the impedance transformation submodule of described 5G power amplifier module and 5G frequency range radiofrequency signal is exported to described coupling submodule.
6. device according to claim 4, is characterized in that,
Described 5G frequency range radiofrequency signal comprises at least two and presets sub-radio band;
Described device also comprises:
The main power amplifier impedance adjustment unit in parallel with the main power amplifier output matching unit in described 5G main power amplifier submodule, the peak value power amplifier impedance adjustment unit in parallel with the peak value power amplifier output matching unit in described 5G main power amplifier submodule;
Described main power amplifier impedance adjustment unit is used for the scope according to pending default sub-radio band, regulate the impedance of described main power amplifier output matching unit, produce resonance to make the described operating frequency of main power amplifier output matching unit and the frequency of pending default sub-radio band;
Described peak value power amplifier impedance adjustment unit is used for the scope according to pending default sub-radio band, regulate the impedance of described peak value power amplifier output matching unit, produce resonance to make the described operating frequency of peak value power amplifier output matching unit and the frequency of pending default sub-radio band.
7. device according to claim 2, is characterized in that, described power division submodule is used for radiofrequency signal to be assigned as main power amplifier signal and its peak work discharge signal, and the power of described main power amplifier signal is greater than described its peak work discharge signal.
8. device according to claim 7, is characterized in that, described power division submodule is used for the peak-to-average force ratio according to radiofrequency signal, described radiofrequency signal is assigned as main power amplifier signal and described its peak work discharge signal.
9. device according to claim 8, is characterized in that, described power division submodule comprises merit subdivision and attenuation units;
Described merit subdivision is used for radiofrequency signal to be assigned as the identical main power amplifier signal of power and its peak work discharge signal, and its peak work discharge signal is exported to attenuation units;
Described attenuation units is used for decaying its peak work discharge signal after forming decay to its peak work discharge signal.
10. device according to claim 9, described attenuation units is PIN pipe.
11. 1 kinds of wireless access point AP equipment, is characterized in that, comprise arbitrary described device in claim 1-10.
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