CN113660361A - Signal transmission method and mobile terminal - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/401—Circuits for selecting or indicating operating mode
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0277—Details of the structure or mounting of specific components for a printed circuit board assembly
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Abstract
The invention discloses a signal transmission method and a mobile terminal, wherein the mobile terminal comprises: a PCB main board and an antenna small board; the antenna small plate is provided with a plurality of antennas, each antenna is provided with an independent antenna feed point on the antenna small plate, and each antenna corresponds to one feed source on the PCB main board; the PCB main board is connected with the antenna small board through an RF cable, and the RF cable transmits RF radio frequency signals from the PCB main board to the antenna small board; or the RF cable transmits the signal on the antenna small plate to the PCB main board. According to the invention, the signals between the PCB main board and the antenna small board can be mutually transmitted only by arranging the RF cable between the PCB main board and the antenna small board, the complexity of the structural design of the mobile terminal is reduced, the receiving and the transmitting of each signal channel are not influenced, the degree of freedom of the structural design of the antenna is reserved to the greatest extent, and the better antenna transceiving performance is achieved.
Description
Technical Field
The present invention relates to the field of mobile terminal technologies, and in particular, to a signal transmission method and a mobile terminal.
Background
The mobile terminal or called mobile communication terminal refers to a computer device which can be used in mobile, and broadly includes a mobile phone, a notebook, a tablet computer, a POS machine, and even a vehicle-mounted computer. But most often refer to cell phones or smart phones and tablets with multiple application functions. With the development of networks and technologies towards increasingly broader bands, the mobile communications industry will move towards a true mobile information age. On the other hand, with the rapid development of integrated circuit technology, the processing capability of the mobile terminal has already possessed strong processing capability, and the mobile terminal is changing from a simple conversation tool to an integrated information processing platform, which also adds a wider development space for the mobile terminal.
Mobile terminals have been developed as simple communication devices with mobile communications for decades. From 2007, the gene mutation of the mobile terminal is intelligently triggered, and the traditional positioning of the terminal as a mobile network terminal is fundamentally changed. The mobile intelligent terminal is almost instantly changed into a key entrance and a main innovation platform of internet business, a novel media, electronic commerce and information service platform, the most important hub of internet resources, mobile network resources and environment interaction resources, and an operating system and a processor chip of the mobile intelligent terminal even become the strategic high points of the whole ICT industry at present. The subversive change caused by the mobile intelligent terminal opens the sequence of mobile internet industry development and opens a new technical industry period. With the continuous development of the mobile intelligent terminal, the influence of the mobile intelligent terminal is more extensive than that of a shoulder radio, a television and the internet (PC), and the mobile intelligent terminal becomes a 4 th terminal product which has wide penetration, rapid popularization and great influence and can reach the aspects of human social life historically.
Coaxial Cable (coax Cable) is sometimes also referred to as radio frequency Cable (RF Cable) or radio frequency Coaxial Cable, which is the most common type of structure. Because the inner conductor and the outer conductor are in concentric positions, electromagnetic energy is limited in a medium between the inner conductor and the outer conductor to be transmitted, and therefore the electromagnetic shielding device has the remarkable advantages of small attenuation, high shielding performance, wide use frequency band, stable performance and the like. Typically used to transmit radio frequency energy of 500 khz to 18 ghz. The coaxial cable has two concentric conductors, and the conductors and the shield share the same axial center. Most common coaxial cables consist of a copper conductor separated by an insulating material, outside of which is another layer of annular conductor and its insulation, and then the entire cable is surrounded by a sheath of polyvinyl chloride or teflon material. Coaxial cables are classified into radio frequency coaxial cables, which are classified into 50 Ω baseband cables and 75 Ω broadband cables. The baseband cable is divided into a thin coaxial cable and a thick coaxial cable. The baseband cable is only used for digital transmission, and the data rate can reach 10 Mbps. The radio frequency coaxial cable with the characteristic impedance of 50 omega is mainly used for baseband signal transmission, the transmission bandwidth is 1-20 MHz, the radio frequency coaxial cable with the characteristic impedance of 75 omega is commonly used for a CATV network, so the radio frequency coaxial cable is called as a CATV cable, the transmission bandwidth can reach 1GHz, and the transmission bandwidth of the conventional CATV cable is 750 MHz.
The mobile communication continues the development rule of technology generation every decade and has undergone the development of 1G, 2G, 3G and 4G. Every time of interpersonal transition and every technological progress, the industrial upgrading and the economic and social development are greatly promoted. From 1G to 2G, the transition from analog communication to digital communication is realized, and mobile communication enters thousands of households; from 2G to 3G and 4G, the conversion from voice service to data service is realized, the transmission rate is increased by hundreds of times, and the popularization and the prosperity of the application of the mobile internet are promoted. Currently, mobile networks have been integrated into the aspects of social life, and have profoundly changed the communication and communication of people and even the whole life style. The 4G network creates a very brilliant internet economy, solves the problem of communication between people at any time and any place, and with the rapid development of mobile internet, new services and new services are continuously emerging, the traffic of mobile data services is explosively increased, the 4G mobile communication system is difficult to meet the requirement of the future mobile data traffic explosion, and the research and development of a next generation mobile communication (5G) system are urgently needed.
The 5G (5th Generation Mobile Communication Technology), abbreviated as 5G fifth Generation Mobile Communication Technology, is a new Generation broadband Mobile Communication Technology with the characteristics of high speed, low time delay and large connection, and is a network infrastructure for realizing man-machine-object interconnection. The International Telecommunications Union (ITU) defines three major application scenarios of 5G, namely enhanced mobile broadband (eMBB), ultra-high reliability low latency communication (urrllc) and mass machine type communication (mtc). Enhanced mobile broadband (eMBB) is mainly oriented to the explosive growth of mobile internet traffic, and provides more extreme application experience for mobile internet users; the ultra-high reliable low-delay communication (uRLLC) mainly faces to the application requirements of the vertical industry with extremely high requirements on delay and reliability, such as industrial control, telemedicine, automatic driving and the like; mass machine type communication (mMTC) mainly faces to the application requirements of smart cities, smart homes, environment monitoring and the like which aim at sensing and data acquisition.
The 5G project antenna quantity is more, needs many RF cable, for example has 3 antennas on the platelet, draws radio frequency signal to the platelet from the mainboard through 3 cable lines respectively, and these RF cables occupy very much structural space, and the material cost is also higher moreover.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
The invention mainly aims to provide a signal transmission method, a mobile terminal and a computer readable storage medium, and aims to solve the problems that in the prior art, a 5G project antenna needs a plurality of RF (radio frequency) cables, so that the RF cables occupy a large structural space and the material cost is high.
To achieve the above object, the present invention provides a mobile terminal, comprising: a PCB main board and an antenna small board; the antenna small plate is provided with a plurality of antennas, each antenna is provided with an independent antenna feed point on the antenna small plate, and each antenna corresponds to one feed source on the PCB main board;
the PCB main board is connected with the antenna small board through an RF cable, and the RF cable transmits RF radio frequency signals from the PCB main board to the antenna small board; or the RF cable transmits the signal on the antenna small plate to the PCB main board.
Optionally, in the mobile terminal, the PCB board includes a signal splitting unit, and the signal splitting unit includes a frequency divider, a detection unit, and a combiner;
the frequency divider is used for dividing each signal received from the antenna of the antenna platelet into different paths after frequency discrimination;
the detection unit is used for distinguishing each signal according to the signal characteristics;
the beam combiner is used for combining the signals after being separated independently to each radio frequency module port.
Optionally, the mobile terminal, wherein the PCB main board further includes a duplexer, and the PCB main board transmits the RF radio frequency signal and then merges to one port of the frequency divider through the duplexer.
Optionally, in the mobile terminal, the RF cable is connected to the PCB main board and the antenna platelet by fastening;
the PCB main board and the antenna small board are both provided with an RF cable seat, and the RF cable is provided with a corresponding buckling head;
the RF cable is connected with the PCB main board and the antenna small plate in a buckling mode through the buckling head.
Optionally, in the mobile terminal, the PCB main board transmits RF radio frequency signals through each feed source, and then transmits the RF radio frequency signals to the antenna platelet through the RF cable.
Optionally, the mobile terminal, wherein the antenna platelet includes a combiner, the combiner is connected to each antenna of the antenna platelet, and the combiner is configured to combine signals of the same frequency or different frequencies received by each antenna, and send the combined signals to the PCB motherboard through the RF cable.
Optionally, in the mobile terminal, after the RF signal transmitted by the PCB main board passes through the combiner on the antenna platelet, the antenna platelet outputs the RF signal from the port supporting the corresponding frequency according to the frequency characteristic, transmits the RF signal to the antenna of the current port, and transmits the RF signal through the antenna.
Optionally, the number of the RF cable between the PCB main board and the antenna platelet is one.
In addition, in order to achieve the above object, the present invention further provides a signal transmission method based on the mobile terminal, wherein the signal transmission method includes:
the RF cable transmits RF radio frequency signals from the PCB main board to the antenna small board;
or the RF cable transmits the signal on the antenna small plate to the PCB main board.
Optionally, in the signal transmission method, after the RF signal transmitted by the PCB board passes through the combiner on the antenna platelet, the antenna platelet outputs the RF signal from the port supporting the corresponding frequency according to the frequency characteristic, transmits the RF signal to the antenna of the current port, and transmits the RF signal through the antenna;
and the antenna small plate combines signals with the same frequency or different frequencies received by each antenna through a combiner and then sends the combined signals to the PCB main board through the RF cable.
The mobile terminal of the present invention includes: a PCB main board and an antenna small board; the antenna small plate is provided with a plurality of antennas, each antenna is provided with an independent antenna feed point on the antenna small plate, and each antenna corresponds to one feed source on the PCB main board; the PCB main board is connected with the antenna small board through an RF cable, and the RF cable transmits RF radio frequency signals from the PCB main board to the antenna small board; or the RF cable transmits the signal on the antenna small plate to the PCB main board. According to the invention, the signals between the PCB main board and the antenna small board can be mutually transmitted only by arranging the RF cable between the PCB main board and the antenna small board, the complexity of the structural design of the mobile terminal is reduced, the receiving and the transmitting of each signal channel are not influenced, the degree of freedom of the structural design of the antenna is reserved to the greatest extent, and the better antenna transceiving performance is achieved.
Drawings
FIG. 1 is a schematic diagram of the connection between a PCB board and an antenna platelet in the prior art;
FIG. 2 is a schematic diagram of a mobile terminal of the present invention;
FIG. 3 is a schematic diagram illustrating the connection between a PCB main board and an antenna platelet in the mobile terminal according to the present invention;
fig. 4 is a flowchart illustrating a signal transmission method according to a preferred embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, a PCB (Printed Circuit Board, which is called a Printed Circuit Board and is also called a Printed Circuit Board, is an important electronic component, is a support body of an electronic component, is a carrier for electrically interconnecting electronic components, and is called a "Printed" Circuit Board because it is manufactured by electronic printing technology) includes 3 feed sources (i.e. 3 feed sources 1 in fig. 1), each feed source 1 is connected with an antenna 1 of an antenna platelet (3 antennas 1 in fig. 1 are arranged on the antenna platelet in fig. 1) through an RF cable (i.e. RF cable1 in fig. 1), that is, the feed source 1 of each PCB and the antenna 1 of the antenna platelet need to be connected through an RF cable1 (and RF cable seats need to be respectively arranged on the PCB and the antenna platelet for connection of the RF cables), more RF cable is needed as more antennas are on the antenna platelet, which occupies more space and is more costly in material.
Therefore, in order to overcome the above-mentioned drawbacks of the prior art, a mobile terminal according to a preferred embodiment of the present invention, as shown in fig. 2 and 3, includes: a PCB main board and an antenna small board; the antenna platelet is provided with a plurality of antennas, each antenna is provided with an independent antenna feed point (the position of the antenna connected with the feed line) on the antenna platelet, and each antenna corresponds to a feed source on the PCB mainboard (the feed source refers to a continuous caliber antenna or a primary radiator of an antenna array, although the cost of the corrugated horn is high, the directional diagram has good symmetry, low side lobe and wider frequency band, so the corrugated horn is widely applied); the PCB main board is connected with the antenna small board through an RF cable, and the RF cable transmits RF radio frequency signals from the PCB main board to the antenna small board; or the RF cable transmits the signal on the antenna small plate to the PCB main board.
As shown in fig. 3, a plurality of antennas are arranged on the antenna platelet, for example, 3 antennas, namely, antenna 1, antenna 2 and antenna 3 are arranged on the antenna platelet, each antenna is provided with an independent antenna feed point (the position where the antenna is connected to a feed line which is a transmission line for connecting the antenna with a receiver and a transmitter for transmitting radio frequency energy, the antenna feed point is required to have good impedance matching with the antenna, small transmission loss, small radiation effect, and sufficient frequency bandwidth and power capacity, the antenna has parallel double lines, coaxial lines, microstrip lines and waveguide tubes, the parallel double lines and the coaxial lines are generally used as feed lines of the line antennas, the microstrip lines and the coaxial lines are used as feed lines of the microstrip antennas, the waveguide tubes are used as feed lines of the reflector antennas and horn antennas, and radio communication systems and components thereof are electronically connected, Measurement of the performance of components, equipment and the like, electromagnetic environment and radio materials. The parameters include electromagnetic medium, frequency, power, attenuation, impedance, standing wave, field strength, phase, waveform, frequency spectrum, etc. The instruments used were: signal generator, frequency meter, power meter, impedance measuring instrument, standing wave measuring instrument, field strength meter, frequency spectrograph, test receiver, network analyzer, oscilloscope, integrated circuit tester, transmission comprehensive tester, etc. When measuring small signals, interference caused by stray radios, power and ground lines, radio coupling, etc. should be prevented. This kind of measurement needs to pay attention to good matching, is gone on at the shielded room mostly), 3 feeds (3 feeds 1 in fig. 3) have been set up on the PCB mainboard, every antenna of antenna platelet is in correspond a feed on the PCB mainboard, for example antenna 1 corresponds a feed 1 on the PCB mainboard, antenna 2 corresponds a feed 1 on the PCB mainboard, antenna 3 corresponds a feed 3 on the PCB mainboard, when the antenna quantity is more, it is also that every antenna is in correspond a feed on the PCB mainboard.
The mobile terminal in the invention includes only one RF cable, the RF cable is a radio frequency coaxial cable and has good impedance characteristics, the RF cable is used for transmitting RF radio frequency signals, generally, a cable with characteristic impedance of 50 ohms or 75 ohms can be used as the RF cable, and from the definition point of view, the definition should be as follows: a cable capable of transmitting RF signals without substantially affecting the quality of the RF signals is an RF cable; the RF cable transmits RF radio frequency signals from the PCB main board to the antenna small board; or the RF cable transmits the signal on the antenna small plate to the PCB main board, namely, the RF cable is used as a medium for transmitting the signal between the PCB main board and the antenna small plate.
In order to be able to transmit television signals over the air, for example, video must be modulated from a television signal to a high Frequency or Radio Frequency (RF-Radio Frequency) signal, each of which occupies one channel, so that multiple television programs can be simultaneously transmitted over the air without causing confusion. When the frequency of the electromagnetic waves is lower than 100kHz, the electromagnetic waves can be absorbed by the earth surface and cannot form effective transmission, once the frequency of the electromagnetic waves is higher than 100kHz, the electromagnetic waves can be transmitted in the air and reflected by an ionosphere at the outer edge of the atmosphere to form long-distance transmission capability, and the high-frequency electromagnetic waves with the long-distance transmission capability are called as radio frequency, English abbreviation: and RF. To enable the over-the-air distribution of television signals, it is necessary to modulate the video full television signals into high Frequency or Radio Frequency (RF-Radio Frequency) signals, each occupying a channel, so that multiple television programs can be simultaneously distributed over the air without causing confusion.
Further, as shown in fig. 3, the mobile terminal includes a PCB main board and an antenna small board, and the RF cable (for example, RF cable1 in fig. 3) is electrically connected with the PCB main board and the antenna small board by buckling; the PCB main board and the antenna small board are provided with RF cable seats (for example, RF cable seats on the left and right sides of RF cable1 in fig. 3), and the RF cable is provided with corresponding buckling heads; the RF cable is connected with the PCB main board and the antenna small board in a buckling mode through the buckling head (namely, the PCB main board and the antenna small board are respectively provided with the RF cable seat matched with the buckling head of the RF cable). The RF cable line passes through RF cable seat and connects PCB mainboard and antenna platelet promptly, has corresponding buckle head on the RF cable line, can be used for leading to with RF cable seat lock.
The mobile terminal is provided with a plurality of antennas on an antenna platelet, each antenna has different functions, and each antenna is corresponding to a corresponding feeder on a main board; each antenna has a separate antenna feed point on the antenna platelet; the frequency bands supported by some antennas (in the communication field, the frequency band refers to the frequency range of electromagnetic waves, and is in Hz, and is in terms of frequency) of each antenna are the same.
Further, as shown in fig. 3, the PCB board includes a signal splitting unit, where the signal splitting unit includes a frequency divider, a detection unit (two detection units are illustrated in fig. 3), and a combiner; the frequency divider is used for frequency-dividing each signal received from the antenna of the antenna platelet and distributing the signal to different paths (for example, the analog frequency divider is a circuit device in the sound box and is used for separating an input analog audio signal into different parts of high pitch, middle pitch, low pitch and the like, and then sending the parts into corresponding high pitch, middle pitch and low pitch horn units for reproduction); the detector is divided into an envelope detector and a synchronous detector, wherein the envelope detector has an output signal corresponding to the envelope of an input signal and is mainly used for demodulating a standard amplitude-modulated signal, the synchronous detector is actually an analog multiplier, and an oscillating signal completely consistent with the carrier wave of the input signal needs to be added for obtaining demodulation effect, and the synchronous detector is mainly used for demodulating a single-sideband amplitude-modulated signal or demodulating a vestigial sideband amplitude-modulated signal; the beam combiner is used for combining the signals after being separated independently to each radio frequency module port.
That is, the frequency divider is used to divide the signals received from the antennas of the antenna platelet into different channels by frequency; in the same frequency signal, there are signals received by different antennas, and the characteristics of these signals, such as time delay, polarization, etc., are different, and the detection unit can distinguish each signal by these characteristics; after signals with different frequencies, different time delays and different polarization characteristics are separated independently, the signals are combined to the ports of the radio frequency modules through the combiner.
Where latency refers to the time required for a message or packet to travel from one end of a network to another. The method comprises the steps of sending delay, propagation delay, processing delay and queuing delay, wherein the delay is the sending delay, the propagation delay, the processing delay and the queuing delay, and generally, the sending delay and the propagation delay are mainly considered. For the case of large message length, the transmission delay is a main contradiction; when the length of the message is small, propagation delay is a main contradiction. The delay refers to the time interval from the first bit of a packet entering the router to the last bit of the packet being output from the router. The time interval between the sending of a test packet and the receipt of a data packet by the test meter is typically used in the test. Delay is related to packet length and is usually tested within the throughput range of the router port, and it makes no sense to test the index beyond the throughput. Polarization (polarization) refers to a phenomenon in which a substance undergoes bipolar differentiation under certain conditions, so that its properties deviate from the original state. Such as molecular polarization (increased dipole moment), photon polarization (polarization), electrode polarization, etc. The property of the electric field vector (or magnetic field vector) characterizing a uniform plane wave to change in spatial orientation is specified by the trajectory of the end of the electric field vector E of a sine wave at a given point. Optically called polarization. It can be divided into linear polarization, circular polarization and elliptical polarization according to the characteristics of electric field vector trajectory. Since there is a clear relationship between the direction of H and the direction of E, it is not necessary to describe the characteristics of H separately.
Furthermore, the PCB main board also comprises a duplexer, and the PCB main board transmits the RF signal and then is combined to one port of the frequency divider through the duplexer; that is, the transmission signal of the PCB board is merged into one of the ports of the frequency divider through the duplexer, where the transmission signal is merged with the same or similar frequency signal, that is, the transmission signal enters the port of the frequency divider of the same or similar frequency signal.
Furthermore, the PCB mainboard transmits RF radio frequency signals through each feed source to be converged, and then transmits the signals to the antenna small plate through the RF cable, namely, after all signal paths are converged into one, the signals are connected to the antenna small plate through the RF cable seat and the RF cable line.
Furthermore, the antenna platelet includes a combiner, the combiner is connected with each antenna of the antenna platelet, and the combiner is used for combining signals with the same frequency or different frequencies received by each antenna, and sending the signals to the PCB mainboard through the RF cable. That is to say, there is a signal splitting unit on the small antenna plate, the signal splitting unit is mainly composed of a combiner, the signals received by each antenna are combined together through the combiner, and the function of the combiner combines the signals with different frequencies into one path on one hand, and combines the signals with the same frequency into one path on the other hand; the characteristics of combiner avoid signal crosstalk each other between each antenna promptly, also be from the signal that a certain antenna received, connect the combiner after, only can transmit the other one end of combiner, can not transmit to other antennas that receive the combiner, also be the mutual isolation between each access port of combiner.
Furthermore, after the RF signal transmitted by the PCB board passes through the combiner on the antenna platelet, the antenna platelet is output from the port supporting the corresponding frequency by the combiner according to the frequency characteristic, transmitted to the antenna of the current port, and then transmitted through the antenna. That is, the transmission signal transmitted from the PCB motherboard is output from the port supporting the corresponding frequency by the combiner according to the frequency characteristic after passing through the combiner on the antenna platelet, transmitted to the antenna connected to the port, and transmitted through the antenna; all radio frequency signals are transmitted simultaneously in the same RF cable line without mutual influence.
And furthermore, the PCB main board is provided with a radio frequency chip and a radio frequency front end module, and the antenna platelet is provided with an antenna elastic sheet connected with the antenna radiator. The RF cable is connected with the PCB main board and the antenna small board, and transmits RF radio frequency signals to the antenna small board from the PCB main board, or transmits signals on the antenna small board to the PCB main board.
In the invention, the number of the RF cables between the PCB main board and the antenna small board is one, and a plurality of RF cables are not required to be arranged, so that even if 3 antennas are arranged on the antenna small board, signals of the 3 antennas are transmitted to the antenna small board from the PCB main board through one RF cable line, and are distinguished again on the antenna small board and are transmitted to 3 different antennas respectively, so that 2 RF cable lines and RF cable seats can be saved, the occupation of the structural space is reduced, and the structural design complexity is saved.
Firstly, a plurality of RF (radio frequency) cables are saved, each antenna on an antenna small plate needs 2-3 RF cable lines for transmission conventionally, each RF cable needs matched materials such as an RF cable seat, a wire clamp and the like, and the cost of the materials can be saved. Secondly, each RF cable needs manual assembly when assembled in a factory, the RF cables are saved, and the manual assembly cost can be saved; only 1 RF cable is needed again, the complexity of the structural design is reduced, the influence on the product appearance is reduced to the minimum, and the more competitive product appearance design can be realized; in addition, RF cable is saved, antenna architecture is not changed, receiving and transmitting of each signal path are not affected, and the degree of freedom of antenna structure design is reserved to the greatest extent, so that better antenna transceiving performance is achieved.
Further, as shown in fig. 4, based on the mobile terminal, the present invention further provides a signal transmission method, where as shown in fig. 4, the signal transmission method includes the following steps:
s10, the RF cable transmits RF signals from the PCB main board to the antenna small board;
and S20, transmitting the signal on the antenna small plate to the PCB main board by the RF cable.
Specifically, after the RF radio frequency signal transmitted by the PCB main board passes through the combiner on the antenna platelet, the antenna platelet is output from a port supporting a corresponding frequency by the combiner according to the frequency characteristic, transmitted to the antenna of the current port, and transmitted through the antenna; and the antenna small plate combines signals with the same frequency or different frequencies received by each antenna through a combiner and then sends the combined signals to the PCB main board through the RF cable.
That is, the transmission signal of the PCB board is merged into one of the ports of the frequency divider through the duplexer, where the transmission signal is merged with the same or similar frequency signal, that is, the transmission signal enters the port of the frequency divider of the same or similar frequency signal. After all signal paths are collected into one signal path, the signal path is connected to the antenna small plate through an RF cable seat and an RF cable line; the transmission signal transmitted by the PCB main board is output from a port supporting corresponding frequency by the combiner after passing through the combiner on the antenna platelet according to the frequency characteristic, is transmitted to the antenna connected with the port, and is transmitted out through the antenna.
In addition, the present invention also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a signal transmission program, and the signal transmission program realizes the steps of the signal transmission method as described above when executed by a processor.
In summary, the present invention provides a signal transmission method and a mobile terminal, where the mobile terminal includes: a PCB main board and an antenna small board; the antenna small plate is provided with a plurality of antennas, each antenna is provided with an independent antenna feed point on the antenna small plate, and each antenna corresponds to one feed source on the PCB main board; the PCB main board is connected with the antenna small board through an RF cable, and the RF cable transmits RF radio frequency signals from the PCB main board to the antenna small board; or the RF cable transmits the signal on the antenna small plate to the PCB main board. According to the invention, the signals between the PCB main board and the antenna small board can be mutually transmitted only by arranging the RF cable between the PCB main board and the antenna small board, the complexity of the structural design of the mobile terminal is reduced, the receiving and the transmitting of each signal channel are not influenced, the degree of freedom of the structural design of the antenna is reserved to the greatest extent, and the better antenna transceiving performance is achieved.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Of course, it will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by instructing relevant hardware (such as a processor, a controller, etc.) through a computer program, and the program can be stored in a computer readable storage medium, and when executed, the program can include the processes of the embodiments of the methods described above. The computer readable storage medium may be a memory, a magnetic disk, an optical disk, etc.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (10)
1. A mobile terminal, characterized in that the mobile terminal comprises: a PCB main board and an antenna small board; the antenna small plate is provided with a plurality of antennas, each antenna is provided with an independent antenna feed point on the antenna small plate, and each antenna corresponds to one feed source on the PCB main board;
the PCB main board is connected with the antenna small board through an RF cable, and the RF cable transmits RF radio frequency signals from the PCB main board to the antenna small board; or the RF cable transmits the signal on the antenna small plate to the PCB main board.
2. The mobile terminal of claim 1, wherein the PCB board comprises a signal splitting unit, the signal splitting unit comprising a frequency divider, a detection unit and a combiner;
the frequency divider is used for dividing each signal received from the antenna of the antenna platelet into different paths after frequency discrimination;
the detection unit is used for distinguishing each signal according to the signal characteristics;
the beam combiner is used for combining the signals after being separated independently to each radio frequency module port.
3. The mobile terminal of claim 2, wherein the PCB board further comprises a duplexer, and the PCB board transmits the RF signal and then is combined to one port of the frequency divider through the duplexer.
4. The mobile terminal according to claim 1, wherein the RF cable is electrically connected to the PCB main board and the antenna platelet through buckling;
the PCB main board and the antenna small board are both provided with an RF cable seat, and the RF cable is provided with a corresponding buckling head;
the RF cable is connected with the PCB main board and the antenna small plate in a buckling mode through the buckling head.
5. The mobile terminal according to claim 4, wherein the PCB main board transmits RF radio frequency signals through each feed source, and after the signals are converged, the signals are transmitted to the antenna platelet through the RF cable.
6. The mobile terminal according to claim 1, wherein the antenna platelet includes a combiner, the combiner is connected to each antenna of the antenna platelet, and the combiner is configured to combine signals of the same frequency or different frequencies received by each antenna and send the combined signals to the PCB motherboard through the RF cable.
7. The mobile terminal of claim 6, wherein after the PCB board transmits RF signals through the combiner on the antenna platelet, the antenna platelet is output from a port supporting a corresponding frequency by the combiner according to frequency characteristics, transmitted to an antenna of a current port, and then transmitted through the antenna.
8. The mobile terminal according to any of claims 1 to 7, wherein the number of the RF cable between the PCB main board and the antenna platelet is one.
9. A signal transmission method based on the mobile terminal of any one of claims 1 to 8, wherein the signal transmission method comprises:
the RF cable transmits RF radio frequency signals from the PCB main board to the antenna small board;
or the RF cable transmits the signal on the antenna small plate to the PCB main board.
10. The signal transmission method according to claim 9, wherein after the RF signal transmitted by the PCB board passes through the combiner on the antenna platelet, the antenna platelet is output from the port supporting the corresponding frequency by the combiner according to the frequency characteristic, transmitted to the antenna of the current port, and then transmitted through the antenna;
and the antenna small plate combines signals with the same frequency or different frequencies received by each antenna through a combiner and then sends the combined signals to the PCB main board through the RF cable.
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| CN202110850539.6A CN113660361A (en) | 2021-07-27 | 2021-07-27 | Signal transmission method and mobile terminal |
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| CN202110850539.6A CN113660361A (en) | 2021-07-27 | 2021-07-27 | Signal transmission method and mobile terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023093254A1 (en) * | 2021-11-25 | 2023-06-01 | 中兴通讯股份有限公司 | Antenna module and mobile terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023093254A1 (en) * | 2021-11-25 | 2023-06-01 | 中兴通讯股份有限公司 | Antenna module and mobile terminal |
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Application publication date: 20211116 |