CN115833851A

CN115833851A - Intelligent antenna control system

Info

Publication number: CN115833851A
Application number: CN202211468803.0A
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Chengdu Aich Technology Co Ltd
Current assignee: Chengdu Aich Technology Co Ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-03-21

Abstract

The invention discloses an intelligent antenna control system, relates to the technical field of radio frequency antennas, and is used for solving the problems of low throughput rate and poor radiation performance in the prior art. The method comprises the following steps: the system comprises a main control chip, a WiFi chip, a matching network, an FEM module, a directional coupler and an antenna; the main control chip performs data interaction with the WiFi chip through the high-speed digital interface; the matching network comprises a first matching network, a second matching network and a third matching network; the first matching network is used for input/output matching of the WiFi chip; the second matching network is used for input/output matching of the directional coupler; the third matching network is used for input/output matching of the radio frequency switch; the FEM module performs data interaction with the WiFi chip through a first matching network and amplifies WiFi radio-frequency signals output by the WiFi chip; the directional coupler feeds back the WiFi radio-frequency signal; the invisible antenna converts the WiFi high-frequency electric signal into electromagnetic waves with corresponding frequencies and radiates the electromagnetic waves. The signal radiation has no dead angle, good omni-directionality and high throughput rate.

Description

Intelligent antenna control system

Technical Field

The invention relates to the technical field of radio frequency antennas, in particular to an intelligent antenna control system.

Background

In the world of everything interconnection, wireless Local Area Networks (WLANs) are widely used in daily life, and are closely related to everyone, home, and enterprise, wherein an AP route (home gateway) almost enters every home and enterprise, and the coverage rate is as high as 99.9%, so as to provide a WiFi network for mobile phones, flat panels, televisions, IOT Wireless terminal products, and the like, thereby realizing internet surfing.

As the demands of consumers on network speed, delay, network experience, etc. become more and more demanding, the signal radiation omnidirectionality of the wireless router (AP) is required to be good and the transmission rate is high.

Therefore, it is desirable to provide a more reliable antenna control scheme to improve throughput rate.

Disclosure of Invention

The invention aims to provide an intelligent antenna control system which is used for solving the problems of low throughput rate and poor radiation performance in the prior art.

In order to achieve the above purpose, the invention provides the following technical scheme:

the invention provides an intelligent antenna control system, comprising:

the system comprises a main control chip, a WiFi chip, a matching network, an FEM module, a directional coupler and an antenna;

the main control chip performs data interaction with the WiFi chip through a high-speed digital interface; the matching networks comprise a first matching network, a second matching network and a third matching network; the first matching network is used for input/output matching of the WiFi chip; the second matching network is used for input/output matching of the directional coupler; the third matching network is used for input/output matching of the radio frequency switch;

the FEM module performs data interaction with the WiFi chip through the first matching network and is used for amplifying the received and transmitted WiFi radio-frequency signal output by the WiFi chip; the directional coupler is used for feeding back a WiFi radio frequency signal output by the WiFi chip; the antenna is a stealth antenna and is used for converting a WiFi high-frequency electric signal into an electromagnetic wave with corresponding frequency and radiating energy corresponding to the electromagnetic wave.

Compared with the prior art, the invention provides an intelligent antenna control system, which comprises: the system comprises a main control chip, a WiFi chip, a matching network, an FEM module, a directional coupler and an antenna; the main control chip performs data interaction with the WiFi chip through the high-speed digital interface; the matching network comprises a first matching network, a second matching network and a third matching network; the first matching network is used for input/output matching of the WiFi chip; the second matching network is used for input/output matching of the directional coupler; the third matching network is used for input/output matching of the radio frequency switch; the FEM module performs data interaction with the WiFi chip through a first matching network and is used for amplifying the received WiFi radio-frequency signal output by the WiFi chip; the directional coupler is used for feeding back the WiFi radio-frequency signal output by the WiFi chip; the antenna is a stealth antenna and is used for converting the WiFi high-frequency electric signal into electromagnetic waves with corresponding frequencies and radiating energy corresponding to the electromagnetic waves. According to the invention, the input and the output of the corresponding structure are matched through the matching network, and the antenna of the router is physically shielded, so that the controllable radio frequency switch and the directional coupler are added, so that no dead angle of signal radiation is realized, the omni-directionality is good, and the throughput rate is high.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic diagram of a throughput test;

fig. 2 is a schematic diagram of a system structure of a smart antenna control system according to the present invention;

FIG. 3 is a block diagram of actual throughput testing;

fig. 4 is a schematic diagram of the antenna design of the product under test.

Detailed Description

In order to facilitate clear description of technical solutions of the embodiments of the present invention, in the embodiments of the present invention, terms such as "first" and "second" are used to distinguish the same items or similar items having substantially the same functions and actions. For example, the first threshold and the second threshold are only used for distinguishing different thresholds, and the sequence order of the thresholds is not limited. Those skilled in the art will appreciate that the terms "first," "second," etc. do not denote any order or quantity, nor do the terms "first," "second," etc. denote any order or importance.

It is to be understood that the terms "exemplary" or "such as" are used herein to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "such as" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

In the present invention, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a and b combination, a and c combination, b and c combination, or a, b and c combination, wherein a, b and c can be single or multiple.

Technical term interpretation:

system on Chip, also known as System on Chip, means that it is a product, an integrated circuit with a dedicated target, which contains the complete System and has the full content of embedded software. In the present invention, the SOC may refer to a main control chip.

2T2R: is a novel wireless technology, adopts a double-antenna design, and two antennas are respectively responsible for receiving and sending

In the prior art, currently, most wireless terminals implement MIMO by increasing the number of antennas to improve throughput rate. As the modern digital communication system realizes communication under the multipath reflection or strong interference environment, the wireless router product can carry out strict evaluation on the wireless performance of the whole machine in the stages of research, development, design and acceptance, wherein when the omni-directionality of the router product is tested, the tested device can be fixed, and the wireless opposite end product can be rotated for 360 degrees to carry out uplink/downlink throughput test. As shown in fig. 1 below, assuming that the forward direction of the product is oriented to 0 ° and rotated clockwise, the throughput curve of 5G WiFi will drop in the directions of 90 ° and 270 ° because there is an overlap between the antennas in the directions of 90 ° and 270 °, i.e. one antenna is blocked by the other antenna, while 5G WiFi has a high frequency and a short wavelength, and a signal is blocked, which results in poor radiation performance, but 2.4G WiFi has a low frequency and a long wavelength, and a signal is not blocked. For wireless terminal products with the power of 2T2R or above, no matter how the antenna is arranged, the signal is shielded, and the signal radiation performance is poor.

Accordingly, the present invention provides a smart antenna control system.

Next, the scheme provided by the embodiments of the present specification will be described with reference to the accompanying drawings:

fig. 2 is a schematic diagram of a system structure of an intelligent antenna control system provided by the present invention, and as shown in fig. 2, the intelligent antenna control system provided by the present invention mainly includes a main control chip, a WiFi chip, a matching network, an FEM module, a directional coupler, and an antenna;

The first matching network may include matching network 1, matching network 6, matching network 11, matching network 16, matching network 3, matching network 8, matching network 13, matching network 18, matching network 2, matching network 7, matching network 12, and matching network 17.

More specifically, the matching network 1, the matching network 6, the matching network 11 and the matching network 16 mainly perform output matching of a built-in PA of the WiFi chip, so as to ensure that the load traction of the PA is in the most appropriate range; and carrying out input matching of the external PA to reduce the reflection of the input signal.

The matching network 3, the matching network 8, the matching network 13 and the matching network 18 mainly perform output matching of an external PA of the WiFi chip, and ensure that the load traction of the PA is in the most appropriate range; the input of an external LNA of the WiFi chip is matched; the input/output matching of the directional coupler reduces the reflection of the input signal and ensures that the output impedance of the directional coupler is 50 omega.

The matching network 2, the matching network 7, the matching network 12 and the matching network 17 mainly perform output matching of the external LNA of the WiFi chip, and the output impedance of the external LNA is ensured to be 50 omega.

The second matching network may include matching network 4, matching network 9, matching network 14, matching network 19, matching network 5, matching network 10, matching network 15, matching network 20.

More specifically, the matching network 4, the matching network 9, and the matching network 14 mainly perform output/input matching of the directional coupler, reduce reflection of an input signal, and ensure that the output impedance of the directional coupler is 50 Ω; and matching the impedance of the antenna to reduce the reflection of the signal.

The matching network 19 mainly performs output/input matching of the directional coupler and the rf switch, reduces reflection of an input signal, and ensures that the output impedance of the directional coupler is 50 Ω.

The matching networks 5, 10, 15, and 20 mainly perform output matching of signals at the coupling ends of the directional couplers.

The third matching network may include a matching network 21 and a matching network 22, which mainly perform output/input matching of the radio frequency switch, reduce reflection of an input signal, and ensure that the output impedance of the radio frequency switch is 50 Ω; and matching the impedance of the antenna to reduce the reflection of the signal.

As shown in fig. 2, the intelligent antenna control system provided by the present invention includes 37 sub-modules, which are a main control chip, a WiFi chip, 22 matching networks, 4 FEM modules, 4 directional couplers, and 5 antennas, respectively.

A main control chip: the CPU processor is mainly used for processing and interacting data, integrating various advanced connection specifications such as SGMII/RGMII, PCIe and the like, and carrying out data interaction with a WiFi chip through a high-speed interface, wherein no matter the connection specification is SGMII or RGMII, transmission information between PHY and MAC not only comprises network port data, but also comprises indication information such as port rate, half-duplex or full-duplex, flow control information such as RX _ DV/TX _ EN/RX _ ERR/TX _ ERR and the like, and COL and CRS. WiFi chip: the method mainly comprises the steps of operating a WiFi protocol stack and a related WiFi algorithm, integrating BB/MAC/PHY/PA/LNA/ADC/DAC/PLL and the like of a WiFi system, transmitting/receiving radio frequency signals, and carrying out data interaction with a main control through a high-speed interface. The 22 matching networks are all the matching networks included in the first matching network, the second matching network and the third matching network.

4 FEM modules: 2 2.4GFEM modules and 2 5GFEM modules, mainly integrate radio frequency modules such as PA, LNA, radio frequency switch, mainly be used for the wiFi radio frequency signal amplification of receiving and dispatching.

4 directional coupler modules: mainly a feedback signal of a radio frequency output signal, and is used for dynamically adjusting the transmission power of the whole system in real time.

5 antenna modules: the WiFi high-frequency electric signal is mainly converted into electromagnetic waves with corresponding frequencies, and energy is radiated out.

There is provided a smart antenna control system comprising: the system comprises a main control chip, a WiFi chip, a matching network, an FEM module, a directional coupler and an antenna; the main control chip performs data interaction with the WiFi chip through the high-speed digital interface; the matching network comprises a first matching network, a second matching network and a third matching network; the first matching network is used for input/output matching of the WiFi chip; the second matching network is used for input/output matching of the directional coupler; the third matching network is used for input/output matching of the radio frequency switch; the FEM module performs data interaction with the WiFi chip through a first matching network and is used for amplifying the received WiFi radio-frequency signal output by the WiFi chip; the directional coupler is used for feeding back the WiFi radio-frequency signal output by the WiFi chip; the antenna is a stealth antenna and is used for converting a WiFi high-frequency electric signal into an electromagnetic wave with corresponding frequency and radiating energy corresponding to the electromagnetic wave. According to the invention, the input and the output of the corresponding structure are matched through the matching network, and the antenna of the router is physically shielded, so that a controllable radio frequency switch and a directional coupler are added, thereby realizing no dead angle of signal radiation, good omni-directionality and high throughput rate.

Based on the system of fig. 2, some specific implementations corresponding to the system are also provided in the embodiments of the present specification, which are described below.

As discussed above in connection with the system of fig. 2, the smart antenna system includes at least 2 2.4GFEM modules and 2 5GFEM modules, and it can be understood that each FEM module corresponds to a communication channel. In the embodiment of the present specification, a smart antenna system including 2 2.4GFEM modules and 2 5G FEM modules is taken as an example for description:

when the smart antenna system includes 2 2.4G GFEM modules and 2 5G GFEM modules, it may correspond to 2.4G channel 1, 2.4

G channel

2,

5G channel

1, and 5G channel 2.

In the first embodiment, when the whole system is in a signal transmission state, the 4 channels all transmit signals.

The corresponding transmission process is as follows:

2.4G two channels and 5G channel 1:

when the whole system is in a transmitting state, the SOC module sends bit stream data to the WiFi chip module through a high-speed interface (PCIE 2.0/3.0 and the like), and the WiFi chip module converts a digital baseband signal into an analog signal through an ADC (analog to digital converter) (integrated in a WiFi chip) and converts the analog signal into a radio frequency signal through multi-stage mixing; amplifying the radio frequency signal through a WiFi built-in PA module, outputting the radio frequency signal to an external PA module, and performing primary amplification to maximize the output power; the signal is transmitted to the directional coupler, the coupling end signal is fed back to the WiFi chip, the output power is dynamically adjusted in real time, the output end signal is transmitted to the antenna, the antenna converts the WiFi high-frequency electric signal into electromagnetic waves with corresponding frequency, and energy is radiated out.

Signal transmission process of 5G channel 2:

when the whole system is in a transmitting state, the SOC module sends bit stream data to the WiFi chip module through a high-speed interface (PCIE 2.0/3.0 and the like), and the WiFi chip module converts a digital baseband signal into an analog signal through an ADC (analog to digital converter) (integrated in a WiFi chip) and converts the analog signal into a radio frequency signal through multi-stage mixing; amplifying the radio frequency signal by a WiFi built-in PA module, outputting the radio frequency signal to an external PA module, and performing primary amplification to maximize the output power; the signal is transmitted to the directional coupler, the coupling end signal is fed back to the WiFi chip, the output power is dynamically adjusted in real time, the output end signal is transmitted to the radio frequency switch, the radio frequency switch selectively outputs the signal to different 5G antennas (5G ANT2 or 5G intelligent antennas) under different scenes by controlling an enabling pin of the radio frequency switch, the antenna converts the WiFi high-frequency electric signal into electromagnetic waves with corresponding frequencies, and the energy is radiated out.

In the second embodiment, when the entire system is in the signal receiving state, the 4 channels all receive signals.

The corresponding receiving process is as follows:

2.4G two-channel and 5G channel 1 signal reception process:

when the whole system is in a receiving state, an opposite-end product radiates an electromagnetic signal through an antenna, and the antenna receives the weak signal and converts the electromagnetic wave into a WiFi high-frequency electric signal with corresponding frequency; the signal is transmitted to the directional coupler, the coupling end signal is fed back to the WiFi chip, the LNA amplification factor is dynamically adjusted in real time, and the output end signal is transmitted to the external LNA; the signals amplified by the LNA are transmitted to the LNA in the WiFi chip for further amplification; the WiFi chip module converts the analog signals into low-frequency analog signals through multistage frequency mixing, converts the analog signals into digital baseband signals through a DAC (integrated in the WiFi chip), and sends bit stream data to the SOC module through a high-speed interface (PCIE 2.0/3.0 and the like).

5G channel 2 signal receiving process:

when the whole system is in a receiving state, an opposite-end product receives electromagnetic signals radiated by an antenna, the radio frequency switch selects different 5G antennas (5G ANT2 or 5G intelligent antennas) to receive in different scenes by controlling an enabling pin of the radio frequency switch, and after the antenna receives the weak signals, the electromagnetic waves are converted into WiFi high-frequency electric signals of corresponding frequencies; the signal is transmitted to the directional coupler, the coupling end signal is fed back to the WiFi chip, the LNA amplification factor is dynamically adjusted in real time, and the output end signal is transmitted to the external LNA; the signals amplified by the LNA are transmitted to the LNA in the WiFi chip for further amplification; the WiFi chip module converts the analog signals into low-frequency analog signals through multi-stage mixing, converts the analog signals into digital baseband signals through a DAC (integrated in the WiFi chip), and sends bit stream data to the SOC module through a high-speed interface (PCIE 2.0/3.0 and the like).

It can be seen that, in the smart antenna system in fig. 2, when signal transmission or signal reception is performed, the cooperative use of the multiple matching networks, the directional coupler, the radio frequency switch, the smart antenna and other structures can achieve no dead angle in signal radiation, good omni-directionality, and high throughput rate.

The intelligent antenna control system designed based on the invention can realize no pit dropping in 360 degrees during specific test, and specifically, a practical throughput test block diagram can be described by combining with fig. 3:

fig. 3 is a block diagram of a goodput test. As shown in fig. 3, the PC is equipped with a wireless network card or a routing AP product (with performance specification larger than the tested product) for running throughput performance with the tested product. Setting WLAN parameters (WiFi standard, bandwidth, GI, transmitting power, account password and other related information) of a wireless network card or an AP product at a PC end to enable the WiFi performance of the PC end to be maximum; the tested product is connected to another PC through a serial port, and the wireless network card or AP product is associated through issuing related instructions in a serial port tool window. After the correlation, the tested product side checks the RSSI and the connection rate in real time through the serial port, and the wireless network card end can also check the maximum connection rate on a PC. A wireless network card end product is connected to a PC (a routing AP product can be connected to the PC through a network interface) through a PCIE card slot, and a throughput testing tool IxChariot is installed on the PC; and opening the tool, connecting in an IP address mode, and setting related parameters to perform real-time throughput streaming. In the 360-degree rotation angle testing process, the wireless network card or the route AP product needs to rotate clockwise in real time (the rotating speed is 2 degrees per second), and the throughput curve is guaranteed not to drop pits.

However, in the actual 360 ° turn angle throughput performance test procedure for 5G WiFi, at 90 ° and 270 °:

when the whole system is in a transmitting or receiving state, namely a product TX/RX throughput test, the throughput at the angle is deteriorated due to the physical shielding of a product antenna, and a pit dropping phenomenon appears on a throughput curve. As shown in fig. 3, a 5G smart antenna is added to the 5G WiFi channel 2;

and in the process of rotating the opposite terminal equipment by 0-90 degrees, the RSSI under the real-time connection state is monitored, when the variation of the RSSI exceeds 2dB, the enabling of the radio frequency switch is controlled by combining the rotation time and the rotation speed of a wireless network card or a routing AP product, the 5GANT2 is switched off, the 5G intelligent antenna is switched on, and the 5G intelligent antenna is used for transmitting or receiving.

And in the 90-180-degree rotation process of the opposite terminal equipment, the RSSI in a real-time connection state is monitored, when the variation of the RSSI exceeds 2dB, the enabling of the radio frequency switch is controlled by combining the rotation time and the rotation speed of a wireless network card or a routing AP product, the 5G intelligent antenna is turned off, the 5G ANT2 is turned on, and the 5GANT2 is used for transmitting or receiving.

And in the process of rotating the opposite terminal equipment by 180-270 degrees, the RSSI under the real-time connection state is monitored, when the variation of the RSSI exceeds 2dB, the enabling of the radio frequency switch is controlled by combining the rotation time and the rotation speed of a wireless network card or a routing AP product, the 5GANT2 is switched off, the 5G intelligent antenna is switched on, and the 5G intelligent antenna is used for transmitting or receiving.

And in the process of rotating the opposite terminal equipment by 270-360 degrees, the RSSI under a real-time connection state is monitored, when the variation of the RSSI exceeds 2dB, the enabling of a radio frequency switch is controlled by combining the rotation time and the rotation speed of a wireless network card or a routing AP product, the 5G intelligent antenna is turned off, the 5G ANT2 is turned on, and the 5G ANT2 is used for transmitting or receiving.

The key specification parameters of the 2.4G WiFi ANT1/ANT2 are as follows:

description of parameters	Specification requirements	Unit
			Efficiency of antenna	≥-1.5	dB
Polarization mode	Cross polarization	-
			Maximum gain in horizontal plane	≥5	dBi
Mean gain in horizontal plane	≥5	dBi
			Out of roundness	≤3	dB
Degree of unbalance	≤3	dB
			Antenna spacing	≥180	mm
Degree of isolation	≥23	dB
			ECC (antenna envelope coefficient)	≤0.1	-

The key specification parameters of the 5G WiFi ANT1/ANT2 are as follows:

description of parameters	Specification requirements	Unit of
			Efficiency of antenna	≥-2	dB
Polarization mode	Cross polarization	-
			Maximum gain in horizontal plane	≥6	dBi
Mean gain in horizontal plane	≥6	dBi
			Out of roundness	≤3	dB
Degree of unbalance	≤5	dB
			Antenna spacing	≥180	mm
Degree of isolation	≥30	dB
			ECC (antenna envelope coefficient)	≤0.1	-

The key specification parameters of the 5G WiFi smart antenna are as follows:

description of parameters	Specification requirements	Unit of
			Efficiency of antenna	≥-2	dB
Polarization mode	Vertical polarization	-
			Maximum gain in horizontal plane	≥5	dBi
Mean gain in horizontal plane	≥5	dBi
			Out of roundness	≤3	dB
Degree of unbalance	≤5	dB
			Antenna spacing	≥180	mm
Degree of isolation	≥30	dB
			ECC (antenna envelope coefficient)	≤0.1	-

Wherein, 5G smart antenna: and the PCB antenna is in a form, so that the cost is low.

The requirement of the discharge position of the 5G intelligent antenna is as follows: the connecting line which is vertical to the connecting line between the two points of the 5G ANT1 and the 5GANT2 is arranged at the same side of the 5GANT1 and is arranged at the inner side of the product structure, the PCB antenna is vertically arranged, the copper sheet faces outwards, and no metal piece is arranged around the PCB antenna.

The antenna design of the tested product provided by the invention is shown in fig. 4:

the antenna is provided with a 5G antenna, at least 2 5G channels and at least 2.4G channels are arranged, the 2.4G channels are correspondingly provided with 2.4G ANT interfaces, and the 5G channels are correspondingly provided with 5G ANT interfaces.

The above description mainly introduces the scheme provided by the embodiment of the present invention from the perspective of interaction between the modules. It is understood that each module, in order to implement the above functions, includes a corresponding hardware structure and/or software unit for performing each function. Those of skill in the art will readily appreciate that the present invention can be implemented in hardware or a combination of hardware and computer software, with the exemplary elements and algorithm steps described in connection with the embodiments disclosed herein. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

The embodiment of the present invention may perform the division of the functional modules according to the method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, the division of the modules in the embodiment of the present invention is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

The method disclosed by the embodiment of the invention can be applied to a processor or realized by the processor. The processor may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The processor may be a general purpose processor, a Digital Signal Processor (DSP), an ASIC, an FPGA (field-programmable gate array) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the procedures or functions described in the embodiments of the present invention are performed in whole or in part. The computer may be a general purpose computer, special purpose computer, computer network, terminal, user equipment, or other programmable device. The computer program or instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer program or instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire or wirelessly. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that integrates one or more available media. The usable medium may be a magnetic medium, such as a floppy disk, hard disk, magnetic tape; or optical media such as Digital Video Disks (DVDs); it may also be a semiconductor medium, such as a Solid State Drive (SSD).

While the invention has been described in connection with various embodiments, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed invention, from a review of the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

While the invention has been described in conjunction with specific features and embodiments thereof, it will be evident that various modifications and combinations can be made thereto without departing from the spirit and scope of the invention. Accordingly, the specification and figures are merely exemplary of the invention as defined in the appended claims and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the invention. It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A smart antenna control system, comprising:

2. The system of claim 1, wherein the smart antenna control system comprises at least 2 2.4GFEM modules and 2 5GFEM modules;

an ADC module and a DAC module are integrated in the WiFi chip; the FEM module is integrated with a PA module, an LNA module and a radio frequency switch.

3. The system of claim 2, wherein when the whole system is in a transmitting state, 2 2.4GFEM modules and the first 5GFEM module correspond to a signal transmitting process comprising:

the main control chip sends bit stream data to the WiFi chip through a high-speed interface, the WiFi chip converts a digital baseband signal corresponding to the bit stream data into an analog signal through the ADC module, and converts the analog signal into a radio frequency signal through multi-stage mixing;

amplifying the radio frequency signal through a built-in PA module and an external PA module of the WiFi chip to obtain an amplified signal;

the amplified signal is transmitted to the directional coupler, and a coupling end signal of the directional coupler is fed back into the WiFi chip to generate a WiFi high-frequency electric signal;

the antenna receives the WiFi high-frequency electric signal, converts the WiFi high-frequency electric signal into electromagnetic waves with corresponding frequencies, and radiates energy corresponding to the electromagnetic waves.

4. The system of claim 3, wherein the PA module built in the WiFi chip performs primary amplification on the radio frequency signal;

and the PA module externally arranged on the WiFi chip amplifies the primarily amplified radio-frequency signal again to obtain an amplified signal.

5. The system of claim 2, wherein when the whole system is in a transmitting state, the second 5GFEM module corresponds to a signal transmitting process comprising:

the amplified signal is transmitted to the directional coupler, a coupling end signal of the directional coupler is fed back into the WiFi chip, an output signal of the WiFi chip is transmitted to the radio frequency switch, the radio frequency switch selectively outputs the amplified signal to a corresponding antenna by controlling an enabling pin of the radio frequency switch, and the antenna converts a WiFi high-frequency electric signal into an electromagnetic wave with corresponding frequency and radiates energy.

6. The system of claim 3, wherein when the whole system is in a receiving state, 2 2.4GFEM modules and the first 5GFEM module correspond to a signal receiving process, and the signal receiving process comprises:

converting the electromagnetic signal of the product at the opposite end of the antenna into a WiFi high-frequency electric signal with corresponding frequency;

transmitting the WiFi high-frequency electric signal to the directional coupler, feeding a coupling end signal of the directional coupler back to the WiFi chip, and adjusting the LNA amplification factor to obtain an output signal;

the output signal is transmitted to an external LNA module of the WiFi chip and an internal LNA module of the WiFi chip to obtain an amplified signal;

the WiFi chip module converts the amplified signals into low-frequency analog signals through multi-stage mixing, and converts the analog signals into digital baseband signals through the DAC module;

and the digital baseband signal sends bit stream data to the main control chip through the high-speed interface.

7. The system of claim 5, wherein when the whole system is in a receiving state, the second 5GFEM module corresponds to a signal receiving process comprising:

selecting the electromagnetic signal of a corresponding antenna receiving end product by controlling an enabling pin of a radio frequency switch;

the antenna receives the electromagnetic signal and converts the electromagnetic signal into a WiFi high-frequency electric signal with corresponding frequency;

the WiFi chip module converts the amplified signals into low-frequency analog signals through multi-stage frequency mixing, and the DAC module converts the analog signals into digital baseband signals;

8. The system of claim 7, wherein the path of the second 5G EM module further comprises a 5G smart antenna when the entire system is in a transmitting or receiving state.

9. The system according to claim 7, wherein the enable pin of the rf switch is controlled to select a 5G smart antenna or a 5G antenna interface for transmitting or receiving signals in different application environments.

10. The system of claim 1, wherein the first matching network, the second matching network, and the third matching network each comprise a plurality of matching networks.