CN114401027A - Communication device - Google Patents
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- CN114401027A CN114401027A CN202111679374.7A CN202111679374A CN114401027A CN 114401027 A CN114401027 A CN 114401027A CN 202111679374 A CN202111679374 A CN 202111679374A CN 114401027 A CN114401027 A CN 114401027A
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Abstract
An embodiment of the present application provides a communication apparatus, and the apparatus includes: the system comprises a baseband processing module, a radio frequency module and an interface function module, wherein the interface function module is used for connecting the baseband processing module and the radio frequency module; the radio frequency module specifically comprises: the radio frequency switching device comprises a radio frequency transceiver circuit, a clock unit, a radio frequency transmitting channel, a radio frequency receiving channel and a radio frequency switching unit; the radio frequency transceiver circuit is used for outputting a radio frequency signal to the radio frequency transmitting channel, the clock unit is used for providing a clock signal for the communication device, and the radio frequency switching unit is used for switching the transmission and the reception of the radio frequency transceiver circuit; the radio frequency transmitting channel comprises a first power amplifier, a power amplifier power supply circuit and a first filter circuit, the radio frequency receiving channel comprises a low noise amplifier and a second filter circuit, the first filter circuit comprises a first capacitor C1, a second capacitor C2, a first inductor L1 and a second inductor L2, and cost of equipment during upgrading and transformation can be reduced.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a communications apparatus.
Background
A common solution of wireless communication equipment is to use a special ASIC chip or to build a communication function circuit by a separate device. The radio frequency power supply mainly comprises a baseband processing unit, a radio frequency receiving and transmitting channel, a frequency combining circuit, a power supply control unit and the like.
The wireless communication equipment realized by using the special ASIC chip or the technology of building a communication functional circuit through a separating device has the advantages of low frequency spectrum utilization rate, fixed use mode and inconvenient upgrading iteration, and leads to high upgrading and modifying cost and poor flexibility of the equipment.
Disclosure of Invention
The embodiment of the application provides a communication device, which can reduce the cost of upgrading and transforming equipment.
A first aspect of an embodiment of the present application provides a communication apparatus, including: the system comprises a baseband processing module, a radio frequency module and an interface function module, wherein the interface function module is used for connecting the baseband processing module and the radio frequency module;
the radio frequency module specifically comprises: the radio frequency switching device comprises a radio frequency transceiver circuit, a clock unit, a radio frequency transmitting channel, a radio frequency receiving channel and a radio frequency switching unit;
the radio frequency transceiver circuit is used for outputting a radio frequency signal to the radio frequency transmitting channel, the clock unit is used for providing a clock signal for the communication device, and the radio frequency switching unit is used for switching the transmission and the reception of the radio frequency transceiver circuit;
the radio frequency transmitting channel comprises a first power amplifier, a power amplifier power supply circuit and a first filter circuit, the radio frequency receiving channel comprises a low noise amplifier and a second filter circuit, and the first filter circuit comprises a first capacitor C1, a second capacitor C2, a first inductor L1 and a second inductor L2;
the power supply port of the first power amplifier is connected with the power supply output port of the power amplifier power supply circuit, the output port of the first power amplifier is connected with the first end of the first capacitor C1, the second end of the capacitor C1 is connected with the first end of the first inductor L1 and the first end of the second inductor L2, the second end of the first inductor L1 is grounded, the second end of the second inductor L1 is connected with the first end of the second capacitor C2 and the signal output end of the radio frequency transmitting channel, and the second end of the second capacitor C2 is grounded.
With reference to the first aspect, in one possible implementation manner, the power amplifier power supply circuit includes: a first power amplifier chip, a third inductor L3, a fourth inductor L4, a fifth inductor L5, a sixth inductor L6, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8, a ninth capacitor C9, a tenth capacitor C10, an eleventh capacitor C11 and a twelfth capacitor C12, wherein,
a first end of the third capacitor C3 is connected to a power supply terminal, a first port of the first power amplifier chip, and a first end of the third inductor L3, a second end of the third capacitor C3 is grounded, a second end of the third inductor L3 is connected to a second port of the first power amplifier chip,
the third port of the first power amplifier chip is connected with the first end of the fourth inductor L4 and grounded, the second end of the fourth inductor L4 is connected with the fourth port and the fifth port of the first power amplifier chip and grounded,
a sixth port of the first power amplifier chip is connected to a seventh port, a first end of a fourth capacitor C4, a first end of a fifth capacitor C5, a first end of a sixth capacitor C6, a first end of a seventh capacitor C7, a first end of an eighth capacitor C8, a first end of a ninth capacitor C9, a first end of a tenth capacitor C10, a first end of a fifth inductor L5, a first end of the sixth inductor L6, a first power port of the first power amplifier, a second power port, and a third power port, and a second end of the fourth capacitor C4, a second end of the fifth capacitor C5, a second end of the sixth capacitor C6, a second end of the seventh capacitor C7, a second end of the eighth capacitor C8, a second end of the ninth capacitor C9, and a second end of the tenth capacitor C10 are grounded;
a second end of the fifth inductor L5 is connected to a first end of the eleventh capacitor C11, and a second end of the eleventh capacitor C11 is grounded;
a second end of the sixth inductor L6 is connected to the first end of the twelfth capacitor C12 and the fourth power port of the first power amplifier, and a second end of the twelfth capacitor C12 is grounded.
With reference to the first aspect, in one possible implementation manner, the power amplifier power supply circuit further includes a first resistor R1 and a second resistor R2,
a first end of the first resistor R1 is connected to a first end of the second resistor R2, a first end of the sixth capacitor C6, and a first end of a seventh capacitor C7, and a second end of the first resistor R1 is connected to the second power port of the first power amplifier;
a second end of the second resistor R2 is connected to a third power port of the first power amplifier.
With reference to the first aspect, in one possible implementation manner, the communication device further includes a transforming circuit, where the transforming circuit includes a transforming chip, a seventh inductor L7, an eighth inductor L8, a thirteenth capacitor C13, and a fourteenth capacitor C14, where,
a first end of the seventh inductor L7 is connected to a first end of the thirteenth capacitor C13 and the first signal input port, and a second end of the thirteenth capacitor C13 is connected to the first input port of the transformer chip;
a first end of the eighth inductor L8 is connected to a first end of the fourteenth capacitor C14 and the first signal input port, and a second end of the fourteenth capacitor C14 is connected to the second input port of the transformer chip;
the output port of the transformer chip is connected with the signal input port of the first power amplifier.
With reference to the first aspect, in one possible implementation manner, the communication apparatus further includes: a ninth inductor L9, a fifteenth capacitor C15, wherein,
an output port of the transformer chip is connected to a first end of the fifteenth capacitor C15, a second end of the fifteenth capacitor C15 is connected to a first end of the ninth inductor L9, and a second end of the ninth inductor L9 is connected to a signal input port of the first power amplifier.
With reference to the first aspect, in one possible implementation manner, the communication apparatus further includes: a tenth inductor L10, a sixteenth capacitor C16, a seventeenth capacitor C17, wherein,
an output port of the first power amplifier is connected to a first end of the tenth inductor L10, a second end of the tenth inductor L10 is connected to a first end of the sixteenth capacitor C16 and a first end of the seventeenth capacitor C17, and a second end of the sixteenth capacitor C16 and a second end of the seventeenth capacitor C17 are grounded.
With reference to the first aspect, in one possible implementation manner, the interface function module is configured to enable the communication device to have full duplex communication.
The embodiment of the application has at least the following beneficial effects:
the radio frequency module comprises a baseband processing module, a radio frequency module and an interface function module, wherein the interface function module is used for connecting the baseband processing module and the radio frequency module, and the radio frequency module specifically comprises: the radio frequency transceiver circuit is used for outputting a radio frequency signal to the radio frequency transmitting channel, the clock unit is used for providing a clock signal for the communication device, the radio frequency switching unit is used for switching transmitting and receiving of the radio frequency transceiver circuit, the radio frequency transmitting channel comprises a first power amplifier, a power amplifier power supply circuit and a first filter circuit, the radio frequency receiving channel comprises a low noise amplifier and a second filter circuit, the first filter circuit comprises a first capacitor C1, a second capacitor C2, a first inductor L1 and a second inductor L2, a power supply port of the first power amplifier is connected with a power supply output port of the power amplifier power supply circuit, an output port of the first power amplifier is connected with a first end of the first capacitor C1, the second end of the capacitor C1 is connected with the first end of the first inductor L1 and the first end of the second inductor L2, the second end of the first inductor L1 is grounded, the second end of the second inductor L1 is connected with the first end of the second capacitor C2 and the signal output end of the radio frequency transmitting channel, and the second end of the second capacitor C2 is grounded, so that the flexible radio frequency transmitting channel is provided, and the cost of upgrading and transforming equipment can be reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1A is a schematic diagram of a communication device according to an embodiment of the present application;
fig. 1B is a schematic diagram of a communication device according to an embodiment of the present application;
fig. 1C is a schematic diagram of a communication device according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a power amplifier power supply circuit according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of another power amplifier power supply circuit according to an embodiment of the present disclosure;
fig. 4 is a schematic diagram of another communication device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 1A, fig. 1B and fig. 1C, fig. 1A, fig. 1B and fig. 1C are schematic structural diagrams of a communication device according to an embodiment of the present disclosure. As shown in fig. 1A, 1B, and 1C, the communication apparatus includes:
the device comprises a baseband processing module 1, a radio frequency module 3 and an interface function module 2, wherein the interface function module 2 is used for connecting the baseband processing module 1 and the radio frequency module 3;
the radio frequency module 3 specifically includes: a radio frequency transceiver circuit 30, a clock unit 31, a radio frequency transmitting channel 32, a radio frequency receiving channel 33, and a radio frequency switching unit 34;
the radio frequency transceiver circuit 30 is configured to output a radio frequency signal to the radio frequency transmission channel 32, the clock unit 31 is configured to provide a clock signal for the communication device, and the radio frequency switching unit 34 is configured to switch transmission and reception of the radio frequency transceiver circuit 30;
the radio frequency transmitting channel 32 comprises a first power amplifier 321, a power amplifier power supply circuit 322 and a first filter circuit 323, the radio frequency receiving channel 33 comprises a low noise amplifier and a second filter circuit, and the first filter circuit 323 comprises a first capacitor C1, a second capacitor C2, a first inductor L1 and a second inductor L2;
the power port of the first power amplifier 321 is connected to the power output port of the power amplifier power circuit 322, the output port of the first power amplifier 321 is connected to the first end of the first capacitor C1, the second end of the capacitor C1 is connected to the first end of the first inductor L1 and the first end of the second inductor L2, the second end of the first inductor L1 is grounded, the second end of the second inductor L1 is connected to the first end of the second capacitor C2 and the signal output end of the rf transmitting channel 32, and the second end of the second capacitor C2 is grounded.
The first power amplifier may be an MMZ09332B chip. The radio frequency transceiver circuit 30 may be an AD9361 chip, the operating frequency range of which is 70MHz to 6.0GHz, and the supported channel bandwidth range is 200kHz to 56MHz, which meets the index requirements of most handheld, vehicle-mounted desktop or fixed station communication devices.
In the application, the power supply control and the radio frequency processing function circuit are integrated on the same circuit board for the convenience of customization under special requirements.
The interface functional module is used for decoupling and independently designing signals in the baseband processing module and the radio frequency processing module, and interface signals of the baseband processing module and the radio frequency processing module mainly comprise FPGA control signals and power signals. The radio frequency processing unit adopted in the application has the capability of processing the radio signals of 130 MHz-1000 MHz, and can meet the application requirement only by replacing the radio frequency processing circuit without replacing other components such as a baseband processing circuit and the like under the condition that the frequency range of a module is exceeded or power control and performance indexes have special requirements. And the cost of the equipment can be greatly reduced under the condition that the equipment has customization or function upgrading.
The external interface is generated by an FPGA chip in the baseband processing module, and can be flexibly matched according to the interface characteristics of the control equipment, such as USB, McBSP, SDIO, SPI and the like. In the patent, the McBSP interface is realized, and full duplex communication and the highest 48Mbps transmission rate are realized.
In one possible implementation manner, as shown in fig. 2, the power amplifier power supply circuit 322 includes: a first power amplifier power supply chip 3221, a third inductor L3, a fourth inductor L4, a fifth inductor L5, a sixth inductor L6, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8, a ninth capacitor C9, a tenth capacitor C10, an eleventh capacitor C11, and a twelfth capacitor C12, wherein,
a first end of the third capacitor C3 is connected to a power supply terminal, a first port of the first power amplifier power chip 3221, and a first end of the third inductor L3, a second end of the third capacitor C3 is grounded, a second end of the third inductor L3 is connected to a second port of the first power amplifier power chip 3221,
the third port of the first power amplifier power supply chip 3221 is connected to the first end of the fourth inductor L4 and is grounded, the second end of the fourth inductor L4 is connected to the fourth port and the fifth port of the first power amplifier power supply chip 3221 and is grounded,
a sixth port of the first power amplifier power supply chip 3221 is connected to a ninth port, a first end of a fourth capacitor C4, a first end of a fifth capacitor C5, a first end of a sixth capacitor C6, a first end of a seventh capacitor C7, a first end of an eighth capacitor C8, a first end of a ninth capacitor C9, a first end of a tenth capacitor C10, a first end of a fifth inductor L5, a first end of the sixth inductor L6, a second end of the tenth inductor L10, and a second power supply port of the first power amplifier 321, and a second end of the fourth capacitor C4, a second end of the fifth capacitor C5, a second end of the sixth capacitor C6, a second end of the seventh capacitor C7, a second end of the eighth capacitor C8, a second end of the ninth capacitor C9, and a second end of the tenth capacitor C10 are grounded;
a second end of the fifth inductor L5 is connected to a first end of the eleventh capacitor C11, and a second end of the eleventh capacitor C11 is grounded;
a second end of the sixth inductor L6 is connected to the first end of the twelfth capacitor C12 and the eleventh port of the first power amplifier, and a second end of the twelfth capacitor C12 is grounded.
The first power amplifier power supply chip may be TPS 61235. The first power amplifier power supply chip can also be called a first power amplifier chip.
In one possible implementation manner, as shown in fig. 3, the power amplifier power supply circuit further includes a first resistor R1 and a second resistor R2,
a first end of the first resistor R1 is connected to a first end of the second resistor R2, a first end of the sixth capacitor C6, and a first end of a seventh capacitor C7, and a second end of the first resistor R1 is connected to the second power port of the first power amplifier;
a second end of the second resistor R2 is connected to a third power port of the first power amplifier.
In one possible implementation, as shown in fig. 4, the communication device further includes a transforming circuit, the transforming circuit includes a transforming chip, a seventh inductor L7, an eighth inductor L8, a thirteenth capacitor C13, and a fourteenth capacitor C14, wherein,
a first end of the seventh inductor L7 is connected to a first end of the thirteenth capacitor C13 and the first signal input port, and a second end of the thirteenth capacitor C13 is connected to the first input port of the transformer chip;
a first end of the eighth inductor L8 is connected to a first end of the fourteenth capacitor C14 and the first signal input port, and a second end of the fourteenth capacitor C14 is connected to the second input port of the transformer chip;
the output port of the transformer chip is connected with the signal input port of the first power amplifier.
The transformer chip can be a B0322J5050AHF chip.
In one possible implementation, as shown in fig. 4, the communication device further includes: a ninth inductor L9, a fifteenth capacitor C15, wherein,
an output port of the transformer chip is connected to a first end of the fifteenth capacitor C15, a second end of the fifteenth capacitor C15 is connected to a first end of the ninth inductor L9, and a second end of the ninth inductor L9 is connected to a signal input port of the first power amplifier.
In one possible implementation, as shown in fig. 4, the communication device further includes: a tenth inductor L10, a sixteenth capacitor C16, a seventeenth capacitor C17, wherein,
an output port of the first power amplifier is connected to a first end of the tenth inductor L10, a second end of the tenth inductor L10 is connected to a first end of the sixteenth capacitor C16 and a first end of the seventeenth capacitor C17, and a second end of the sixteenth capacitor C16 and a second end of the seventeenth capacitor C17 are grounded.
In one possible implementation, the interface function module is configured to enable full duplex communication for the communication device.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one type of division of logical functions, and there may be other divisions when actually implementing, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in each embodiment may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may be implemented in the form of a software program module.
The integrated units, if implemented in the form of software program modules and sold or used as stand-alone products, may be stored in a computer readable memory. Based on such understanding, the technical solution of the present application may be substantially implemented or a part of or all or part of the technical solution contributing to the prior art may be embodied in the form of a software product stored in a memory, and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method described in the embodiments of the present application. And the aforementioned memory comprises: various media capable of storing program codes, such as a usb disk, a read-only memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and the like.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable memory, which may include: flash memory disks, read-only memory, random access memory, magnetic or optical disks, and the like.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (7)
1. A communications apparatus, the apparatus comprising: the system comprises a baseband processing module, a radio frequency module and an interface function module, wherein the interface function module is used for connecting the baseband processing module and the radio frequency module;
the radio frequency module specifically comprises: the radio frequency switching device comprises a radio frequency transceiver circuit, a clock unit, a radio frequency transmitting channel, a radio frequency receiving channel and a radio frequency switching unit;
the radio frequency transceiver circuit is used for outputting a radio frequency signal to the radio frequency transmitting channel, the clock unit is used for providing a clock signal for the communication device, and the radio frequency switching unit is used for switching the transmission and the reception of the radio frequency transceiver circuit;
the radio frequency transmitting channel comprises a first power amplifier, a power amplifier power supply circuit and a first filter circuit, the radio frequency receiving channel comprises a low noise amplifier and a second filter circuit, and the first filter circuit comprises a first capacitor C1, a second capacitor C2, a first inductor L1 and a second inductor L2;
the power supply port of the first power amplifier is connected with the power supply output port of the power amplifier power supply circuit, the output port of the first power amplifier is connected with the first end of the first capacitor C1, the second end of the capacitor C1 is connected with the first end of the first inductor L1 and the first end of the second inductor L2, the second end of the first inductor L1 is grounded, the second end of the second inductor L1 is connected with the first end of the second capacitor C2 and the signal output end of the radio frequency transmitting channel, and the second end of the second capacitor C2 is grounded.
2. The communication device of claim 1, wherein the power amplifier power supply circuit comprises: a first power amplifier chip, a third inductor L3, a fourth inductor L4, a fifth inductor L5, a sixth inductor L6, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8, a ninth capacitor C9, a tenth capacitor C10, an eleventh capacitor C11 and a twelfth capacitor C12, wherein,
a first end of the third capacitor C3 is connected to a power supply terminal, a first port of the first power amplifier chip, and a first end of the third inductor L3, a second end of the third capacitor C3 is grounded, a second end of the third inductor L3 is connected to a second port of the first power amplifier chip,
the third port of the first power amplifier chip is connected with the first end of the fourth inductor L4 and grounded, the second end of the fourth inductor L4 is connected with the fourth port and the fifth port of the first power amplifier chip and grounded,
a sixth port of the first power amplifier chip is connected to a ninth port, a first end of a fourth capacitor C4, a first end of a fifth capacitor C5, a first end of a sixth capacitor C6, a first end of a seventh capacitor C7, a first end of an eighth capacitor C8, a first end of a ninth capacitor C9, a first end of a tenth capacitor C10, a first end of a fifth inductor L5, a first end of the sixth inductor L6, a first power port of the first power amplifier, a second power port, and a third power port, and a second end of the fourth capacitor C4, a second end of the fifth capacitor C5, a second end of the sixth capacitor C6, a second end of the seventh capacitor C7, a second end of the eighth capacitor C8, a second end of the ninth capacitor C9, and a second end of the tenth capacitor C10 are grounded;
a second end of the fifth inductor L5 is connected to a first end of the eleventh capacitor C11, and a second end of the eleventh capacitor C11 is grounded;
a second end of the sixth inductor L6 is connected to the first end of the twelfth capacitor C12 and the fourth power port of the first power amplifier, and a second end of the twelfth capacitor C12 is grounded.
3. The communication device of claim 2, wherein the power amplifier power supply circuit further comprises a first resistor R1, a second resistor R2,
a first end of the first resistor R1 is connected to a first end of the second resistor R2, a first end of the sixth capacitor C6, and a first end of a seventh capacitor C7, and a second end of the first resistor R1 is connected to the second power port of the first power amplifier;
a second end of the second resistor R2 is connected to a third power port of the first power amplifier.
4. The communication device according to any of claims 1-3, further comprising a transforming circuit comprising a transforming chip, a seventh inductor L7, an eighth inductor L8, a thirteenth capacitor C13, a fourteenth capacitor C14, wherein,
a first end of the seventh inductor L7 is connected to a first end of the thirteenth capacitor C13 and the first signal input port, and a second end of the thirteenth capacitor C13 is connected to the first input port of the transformer chip;
a first end of the eighth inductor L8 is connected to a first end of the fourteenth capacitor C14 and the first signal input port, and a second end of the fourteenth capacitor C14 is connected to the second input port of the transformer chip;
the output port of the transformer chip is connected with the signal input port of the first power amplifier.
5. The communications device of claim 4, further comprising: a ninth inductor L9, a fifteenth capacitor C15, wherein,
an output port of the transformer chip is connected to a first end of the fifteenth capacitor C15, a second end of the fifteenth capacitor C15 is connected to a first end of the ninth inductor L9, and a second end of the ninth inductor L9 is connected to a signal input port of the first power amplifier.
6. The communications device of claim 5, further comprising: a tenth inductor L10, a sixteenth capacitor C16, a seventeenth capacitor C17, wherein,
an output port of the first power amplifier is connected to a first end of the tenth inductor L10, a second end of the tenth inductor L10 is connected to a first end of the sixteenth capacitor C16 and a first end of the seventeenth capacitor C17, and a second end of the sixteenth capacitor C16 and a second end of the seventeenth capacitor C17 are grounded.
7. The communication device according to any of claims 1-6, wherein the interface function module is configured to enable full duplex communication with the communication device.
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|---|---|---|---|---|
| CN108736909A (en) * | 2018-05-09 | 2018-11-02 | 深圳市盛路物联通讯技术有限公司 | The radio circuit and terminal of SAW filter combination anti aliasing purposes filter |
| CN109743063A (en) * | 2019-01-28 | 2019-05-10 | 西安玄黄通信技术有限公司 | A kind of baseband processing unit, wireless communication system and equipment based on FPGA |
-
2021
- 2021-12-31 CN CN202111679374.7A patent/CN114401027A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736909A (en) * | 2018-05-09 | 2018-11-02 | 深圳市盛路物联通讯技术有限公司 | The radio circuit and terminal of SAW filter combination anti aliasing purposes filter |
| CN109743063A (en) * | 2019-01-28 | 2019-05-10 | 西安玄黄通信技术有限公司 | A kind of baseband processing unit, wireless communication system and equipment based on FPGA |
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