CN114095054A - Antenna array and signal transceiving method - Google Patents
Antenna array and signal transceiving method Download PDFInfo
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- CN114095054A CN114095054A CN202111413373.8A CN202111413373A CN114095054A CN 114095054 A CN114095054 A CN 114095054A CN 202111413373 A CN202111413373 A CN 202111413373A CN 114095054 A CN114095054 A CN 114095054A
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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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
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
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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
- H04B1/3822—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 specially adapted for use in vehicles
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The embodiment of the application provides an antenna array and a signal transceiving method, wherein the antenna array comprises at least two antennas and a power divider, each antenna comprises an outer radiation ring and an inner coupling ring, the outer radiation ring and the inner coupling ring are rectangular annular structures which are surrounded in a shape of a Chinese character 'hui' on the same plane, and the outer radiation ring and the inner coupling ring are used for carrying out inductive coupling transceiving signals through a matcher; each antenna is electrically connected with an antenna access end of the power distributor through a corresponding matcher, and the power distributor is provided with a corresponding antenna access end for each antenna and a corresponding radio frequency access end for the radio frequency module; and the radio frequency access end of the power distributor is electrically connected with the radio frequency module. The above design realizes signal transmission and reception to a plurality of loop antennas, i.e., an array loop antenna, by the power divider. Therefore, the signal receiving and transmitting efficiency of the vehicle in the tunnel is improved, and the volume of the single annular antenna is effectively reduced.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to an antenna array and a signal transceiving method.
Background
Short-wave communication is an important telecommunication mode, the working frequency range of the short-wave communication is 3-30MHz, and the short-wave communication is transmitted by a ground wave mode and a sky wave mode. Common short wave antennas include a dipole antenna, a cage antenna, a log periodic antenna, a fishbone antenna, a diamond antenna, an inverted-V antenna, an arch antenna and the like, and because the short wave has a long working wavelength, the size of the antennas is too large, and miniaturization is imperative in order to meet the portability and mobility of the antennas.
The annular antenna has small volume and high frequency selectivity and is generally used for vehicles. At present, an auto-tuning short wave loop antenna exists in the market, and the problems of low efficiency, large volume and inconvenience in carrying of the short wave antenna are solved through a low-frequency band coupling tuning mode and a high-frequency band matching network tuning mode. However, such loop antennas have limitations in certain environments. For example, when a vehicle passes through a tunnel, the volume of the loop antenna is still too large to pass through, and the transmission distance is still not long enough.
Therefore, there is a need for an antenna array and a signal transceiving method for solving the problems of low signal transceiving efficiency and large antenna volume of the existing tunnel.
Disclosure of Invention
The embodiment of the application provides an antenna array and a signal receiving and transmitting method, which are used for solving the problems of low vehicle signal receiving and transmitting efficiency and large antenna volume in the existing tunnel.
In a first aspect, an embodiment of the present application provides an antenna array, where the antenna array includes at least two antennas and a power divider, each antenna includes an outer radiation ring and an inner coupling ring, the outer radiation ring and the inner coupling ring are rectangular ring structures that are surrounded by a same plane in a shape of a Chinese character 'hui', and the outer radiation ring and the inner coupling ring are used for performing inductive coupling to transmit and receive signals through a matcher; each antenna is electrically connected with an antenna access end of the power distributor through a corresponding matcher, and the power distributor is provided with a corresponding antenna access end for each antenna and a corresponding radio frequency access end for the radio frequency module; and the radio frequency access end of the power distributor is electrically connected with the radio frequency module.
In the above design, the power divider is used to transmit and receive signals to and from the plurality of loop antennas, i.e., the array loop antenna. Therefore, the signal receiving and transmitting efficiency of the vehicle in the tunnel is improved, and the volume of the single annular antenna is effectively reduced.
Optionally, the power distributor includes a power distribution module and a resistance value lifting module; each antenna is electrically connected with an antenna access end of the power distribution module in the power distributor through a corresponding matcher, and the power distribution module is provided with a corresponding antenna access end for each antenna; the connecting end of the power distribution module, which aims at the resistance value lifting module, is electrically connected with one end of the resistance value lifting module; the other end of the resistance lifting module is electrically connected with the radio frequency module, and the other end of the resistance lifting module is the radio frequency access end.
In the above design, the power distribution module is configured to combine the received signals of the multiple antennas and shunt the signal transmitted by the radio frequency module to each antenna. The resistance value lifting module is used for reducing resistance of the combined signals received by the plurality of antennas, and the combined signals in the resistance value lifting module and the signals received by each antenna are unchanged. The resistance value lifting module is used for shunting signals transmitted by the radio frequency module to each antenna, and the shunted signals are the same as the signals transmitted by each antenna and the signals output by the radio frequency module through the resistance raising module. So to realize that a plurality of antennas in the array antenna carry out signal transceiver, solve in the current tunnel vehicle through the inefficiency that single antenna transceiver signal leads to, the big problem of antenna volume.
Optionally, the antenna array includes a first antenna and a second antenna, the power distribution module includes a first inductor, a second inductor, a third inductor and an isolation resistor,
the first antenna is electrically connected with a first end of the first inductor through a first matcher, a second end of the first inductor is electrically connected with a first end of the isolation resistor, a second end of the isolation resistor is electrically connected with a second end of the second inductor, and a second end of the isolation resistor is grounded;
the second antenna is electrically connected with a first end of the second inductor through a second matcher, and a second end of the second inductor is electrically connected with a second end of the isolation resistor;
the first end of the first inductor is electrically connected with the first end of the third inductor.
In the above design, the power distribution module includes a first inductor, a second inductor, and a third inductor. For enabling accommodation of signals of corresponding power. That is, when the signal is in the shunt circuit, the first inductor corresponding to the first antenna accommodates the power of the signal in the first antenna, and the second inductor of the second antenna accommodates the power of the signal in the second antenna; when the signals are combined, the first inductor and the third inductor which are connected in series realize the power for accommodating the signals of the first antenna and the second antenna when the signals are combined. The power distribution module comprises an isolation resistor for avoiding intermodulation interference of two paths of signals.
Optionally, the resistance value lifting module includes a fourth inductor, a fifth inductor and a sixth inductor;
the second end of the third inductor is electrically connected with the first end of the fourth inductor;
the second end of the fourth inductor is electrically connected with a fifth inductor and a sixth inductor which are connected in series with the ground;
and the second end of the fourth inductor is electrically connected with the radio frequency module.
In the above design, the resistance lifting module includes a fourth inductor, a fifth inductor and a sixth inductor. For implementing signal resizing.
Optionally, resistance values of the first inductor, the second inductor, the third inductor, and the fourth inductor are equal, and resistance values of the fifth inductor and the sixth inductor are equal;
the square of the ratio of the sum of the resistance values of the fifth inductance and the sixth inductance to the sum of the resistance values of the fourth inductance, the fifth inductance, and the sixth inductance is 1/2.
In the above design, a square of a ratio of a sum of resistance values of the fifth inductor and the sixth inductor to a sum of resistance values of the fourth inductor, the fifth inductor, and the sixth inductor is 1/2. The device is used for realizing two-path signal combining or one-path signal shunting.
Optionally, the matcher includes a matching circuit and a tuning capacitor, the outer radiation loop is connected to the tuning capacitor, and the inner coupling loop is used for connecting the matching circuit.
In the above design, the matcher includes a matching circuit and a tuning capacitor, the outer radiation loop is connected to the tuning capacitor, and the inner coupling loop is used for connecting the matching circuit. Therefore, the matcher tunes signals of the inner coupling ring and the outer radiation ring through an antenna tuning system, and the signal receiving and transmitting quality is guaranteed.
Optionally, the power distribution module is composed of a magnetic ring and three enameled wires, the magnetic ring is made of a power type nickel-zinc magnetic material, the magnetic permeability is 250, the size is 60 mm in outer diameter, 15mm in inner aperture and 25 mm in thickness, and each enameled wire is wound on the ring of the magnetic ring for 7 turns to obtain a first inductor, a second inductor and a third inductor;
the resistance value lifting module is composed of a magnetic ring and three enameled wires, the magnetic ring is made of power type nickel-zinc magnetic materials, the magnetic conductivity is 250, the size is 60 mm in outer diameter, 15mm in inner aperture and 25 mm in thickness, one enameled wire is wound on the ring of the magnetic ring for 7 circles to obtain a fourth inductor, and the other two enameled wires are respectively wound on the ring of the magnetic ring for 9 circles to obtain a fifth inductor and a sixth inductor respectively.
In the design, the power type nickel-zinc magnetic material with good magnetic performance aiming at short wave is selected, so that the signal quality of signal receiving and transmitting of the vehicle short wave receiving and transmitting antenna is improved. The magnetic ring material with the magnetic conductivity of 250, the size of 60 mm of outer diameter, 15mm of inner aperture and 25 mm of thickness is selected, so that the inductor formed by winding 7 circles of enameled wires on the magnetic ring material can accommodate signals with the power of 200W.
Optionally, the outer radiation ring and the inner coupling ring are made of aluminum alloy tubes.
In the above design, an aluminum alloy material is used as the material of the outer radiation ring and the inner coupling ring. The aluminum alloy material has light weight, good heat dissipation property, easy bending and forming and good weather resistance after surface treatment. Therefore, the antenna process difficulty is reduced, and the service life of the antenna is prolonged.
In a second aspect, an embodiment of the present application provides a signal receiving method, based on any one of the antenna arrays in the first aspect, including:
the method comprises the steps that a first antenna and a second antenna receive a first signal, the first signal is transmitted to a power distribution module in a power distributor through a first matcher and a second matcher respectively to be subjected to power synthesis, and a second signal is obtained; the power distribution module transmits the second signal to a resistance value lifting module in the power distributor to reduce the resistance value to obtain the first signal;
the resistance lifting module transmits the first signal to a radio frequency module.
In the method, the power distribution module in the power distributor is used for combining the received signals of the first antenna and the second antenna and shunting the transmitted signals of the first antenna and the second antenna, so that the signal combining and shunting of the antenna array are realized, and the receiving and transmitting quality of the signals is improved. The resistance value of the signal combined circuit and the signal shunted circuit is ensured to meet the requirements of the combined circuit and the shunted circuit through the resistance value lifting module in the power divider, and the receiving and transmitting quality of the signal is improved.
In a third aspect, an embodiment of the present application provides a signal transmitting method, based on any one of the antenna arrays in the first aspect, including:
a resistance value lifting module in the power divider receives a third signal transmitted by the radio frequency module;
the resistance value lifting module raises the resistance value of the third signal to obtain a fourth signal;
the resistance value lifting module transmits the fourth signal to a power distribution module in the power distributor;
the power distribution module performs power distribution on the fourth signal to obtain a third signal transmitted to a first matcher and a third signal of a second matcher, and the third signal is transmitted by a first antenna corresponding to the first matcher and a second antenna corresponding to the second matcher.
In the method, the transmitting signals transmitted by the radio frequency module are shunted aiming at the transmitting signals of the first antenna and the second antenna through the power distribution module in the power distributor, and the receiving signals of the first antenna and the second antenna are combined to realize signal shunting and combining of the antenna array so as to improve the receiving and transmitting quality of the signals. The resistance value of the signal sent by the radio frequency module is increased through the resistance value lifting module in the power divider, so that the resistance value is divided and passes through the first antenna and the second antenna, or the resistance value of the signal received by the power divider is reduced through the resistance value lifting module to be transmitted to the radio frequency module, the resistance value of the signal divided and the signal combined is ensured to meet the requirements of combining and dividing, and the same is achieved, so that the signal receiving and sending quality is improved.
In a fourth aspect, an embodiment of the present application further provides a computing device, including: a memory for storing a program; a processor for calling the program stored in the memory and executing the method as described in the possible design of the second aspect or the third aspect according to the obtained program.
In a fifth aspect, the present embodiments also provide a computer-readable non-volatile storage medium, which includes a computer-readable program, and when the computer-readable program is read and executed by a computer, the computer is caused to execute the method as described in the possible design of the second aspect or the third aspect.
These and other implementations of the present application will be more readily understood from the following description of the embodiments.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is an antenna array according to an embodiment of the present application;
fig. 2 is a power divider according to an embodiment of the present disclosure;
fig. 3 is a power distribution module according to an embodiment of the present disclosure;
fig. 4 is a resistance value increasing and decreasing module according to an embodiment of the present disclosure;
fig. 5 is an antenna according to an embodiment of the present application;
fig. 6 is a power divider circuit according to an embodiment of the present disclosure;
FIG. 7 is a schematic diagram of a power distribution module according to an embodiment of the present application;
FIG. 8 is a schematic diagram of a resistance lifting module according to an embodiment of the present disclosure;
fig. 9 is a schematic diagram of a flow of a signal receiving method according to an embodiment of the present application;
fig. 10 is a schematic diagram of a signal transmission method according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all 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.
Fig. 1 is an antenna array provided in this embodiment of the present application, where the antenna shown in fig. 1 is a 2-antenna array, and may actually be a 3-antenna array, a 4-antenna array, a 5-antenna array, and the like, which may be set as needed. I.e. the antenna array comprises at least two antennas. Each antenna comprises an outer radiation ring and an inner coupling ring, the outer radiation ring and the inner coupling ring are rectangular ring structures (the size of the outer radiation ring is 2850mm long and 1200mm high) which are surrounded in a shape of a Chinese character hui on the same plane, the outer radiation ring and the inner coupling ring are used for carrying out inductive coupling transmission and reception signals through a matcher, and the antenna array further comprises a power divider. Each antenna is electrically connected with an antenna access end of the power distributor through a corresponding matcher, and the power distributor is provided with a corresponding antenna access end for each antenna and a corresponding radio frequency access end for the radio frequency module; and the radio frequency access end of the power distributor is electrically connected with the radio frequency module. The antennas in the antenna array can be fixed by the mounting flange, the inner ring fixing piece and the outer ring fixing piece, and the inner ring fixing piece and the outer ring fixing piece can be non-metal fixing pieces, such as epoxy pieces made of epoxy resin materials. It should be noted that, when the outer radiation ring and the inner coupling ring pass through the matching device, the outer radiation ring and the inner coupling ring both pass through the insulating sleeve, so that the antenna is prevented from contacting the metal box of the matching device, and the antenna is prevented from being directly grounded. So, every antenna in the short wave antenna array of this application has all adopted the square ring structure, and under the condition of same area, the vertical height of short wave antenna of this application is lower, more is applicable to special operational environment such as tunnel of wearing. The array antenna is adopted, at least two antennas are erected on the roof (if the antenna array comprises two antennas, the antennas are erected on two sides of the roof, and if the antenna array comprises 4/6/8 … 2n antennas, each 2/4 (if the area of the roof allows, a larger number of antennas can be arranged in each row) antennas can be erected on two sides of the roof in a front-back sequencing mode), so that the working efficiency of the antennas is improved, and the coupling influence between the two antennas is reduced to the minimum.
As shown in fig. 2, the power divider in the antenna array according to the embodiment of the present application includes a power dividing module and a resistance value raising and lowering module; each antenna is electrically connected with an antenna access end of the power distribution module in the power distributor through a corresponding matcher, and the power distribution module is provided with a corresponding antenna access end for each antenna; the connecting end of the power distribution module, which aims at the resistance value lifting module, is electrically connected with one end of the resistance value lifting module; the other end of the resistance lifting module is electrically connected with the radio frequency module, and the other end of the resistance lifting module is the radio frequency access end. The power distribution module may combine and split signals of multiple antennas, such as antenna 1, antenna 2, antenna 3, and antenna 4 …, antenna n in fig. 2.
As shown in fig. 3, the power distribution module in the power distributor in the antenna array provided in the embodiment of the present application includes a first antenna and a second antenna, where the power distribution module includes a first inductor, a second inductor, a third inductor, and an isolation resistor, the first antenna is electrically connected to a first end of the first inductor through a first matcher, a second end of the first inductor is electrically connected to a first end of the isolation resistor, a second end of the isolation resistor is electrically connected to a second end of the second inductor, and a second end of the isolation resistor is grounded; the second antenna is electrically connected with a first end of the second inductor through a second matcher, and a second end of the second inductor is electrically connected with a second end of the isolation resistor; the first end of the first inductor is electrically connected with the first end of the third inductor. Therefore, the power distribution module comprises a first inductor, a second inductor and a third inductor. It is possible to realize signals that accommodate the respective powers. That is, when the signal is in the shunt circuit, the first inductor corresponding to the first antenna accommodates the power of the signal in the first antenna, and the second inductor of the second antenna accommodates the power of the signal in the second antenna; when the signals are combined, the first inductor and the third inductor which are connected in series realize the power for accommodating the signals of the first antenna and the second antenna when the signals are combined. The power distribution module comprises an isolation resistor for avoiding intermodulation interference of two paths of signals.
As shown in fig. 4, a resistance value lifting module in a power divider in an antenna array includes a fourth inductor, a fifth inductor, and a sixth inductor;
the second end of the third inductor is electrically connected with the first end of the fourth inductor;
the second end of the fourth inductor is electrically connected with a fifth inductor and a sixth inductor which are connected in series with the ground;
and the second end of the fourth inductor is electrically connected with the radio frequency module.
Therefore, the resistance lifting module comprises a fourth inductor, a fifth inductor and a sixth inductor. Signal resizing may be achieved.
The embodiment of the application provides a power divider, wherein the first inductor, the second inductor, the third inductor and the fourth inductor have the same resistance value, and the fifth inductor and the sixth inductor have the same resistance value; the square of the ratio of the sum of the resistance values of the fifth inductance and the sixth inductance to the sum of the resistance values of the fourth inductance, the fifth inductance, and the sixth inductance is 1/2. Therefore, the first inductor and the third inductor can contain the power of the combined signal, and the first inductor and the second inductor can respectively contain the power of the shunt signal. The square of the ratio of the sum of the resistance values of the fifth inductance and the sixth inductance to the sum of the resistance values of the fourth inductance, the fifth inductance, and the sixth inductance is 1/2. In this manner, the resistance of the two antenna branches and the resistance of the combined two antennas in an antenna array including two antennas are realized in 1/2 relationship.
The embodiment of the application provides an antenna, as shown in fig. 5, the matcher comprises a matching circuit and a tuning capacitor, the outer radiation ring is connected with the tuning capacitor, and the inner coupling ring is used for connecting the matching circuit. The outer radiation ring and the inner coupling ring realize equivalent inductance of the outer radiation ring and equivalent inductance of the inner coupling ring respectively through transmitting and receiving signals, and the outer radiation ring also has a loss resistor formed by self materials.
The embodiment of the application provides a power divider, wherein a power dividing module is composed of a magnetic ring and three enameled wires, the magnetic ring is made of a power type nickel-zinc magnetic material, the magnetic conductivity is 250, the size is 60 mm in outer diameter, 15mm in inner aperture and 25 mm in thickness, and each enameled wire is wound on a ring of the magnetic ring for 7 circles to obtain a first inductor, a second inductor and a third inductor;
the resistance value lifting module is composed of a magnetic ring and three enameled wires, the magnetic ring is made of power type nickel-zinc magnetic materials, the magnetic conductivity is 250, the size is 60 mm in outer diameter, 15mm in inner aperture and 25 mm in thickness, one enameled wire is wound on the ring of the magnetic ring for 7 circles to obtain a fourth inductor, and the other two enameled wires are respectively wound on the ring of the magnetic ring for 9 circles to obtain a fifth inductor and a sixth inductor respectively.
Here, the Ni Zn magnetic material of the power type is generally selected in the short wavelength band, that is, the coil is suitable for short wavelength. At uQf (it is noted that,
in the formula, P is core loss power, V is voltage, L is inductance, f is frequency, u is magnetic permeability, and Q is quality factor, and it can be known from the above formula that when the core loss power P is required to be as small as possible, ufQ product is required to be as large as possible, and on the premise that the value is taken within a specific working magnetic induction range, the magnetic core can not be selected by only relying on ufQ product in the category, and in a short wave band, for continuous wave power, the maximum working magnetic induction B of the magnetic core of the transmission line transformer is usually not more than 100 gauss), the power material with the magnetic permeability of 250 is selected, and the size is selected to be a magnetic ring with the diameter of 60 phi 25 phi 15 mm. In this way, the power distribution module can realize that the power distributed synthetically is 400W and the resistance is 100 Ω by winding three enameled wires around a coil obtained by 7 circles of the magnetic ring, and the coil can be regarded as being composed of two transmission line transformers, so that the power capacity on each transmission line transformer is 200W and the resistance is 50 Ω, the radio frequency current flowing through the transmission line is I ═ 2A (P/R)0.5, and the radio frequency voltage is V ═ 100V (P × R) 0.5. Wherein, the maximum work magnetic induction that the magnetic core allows is:
in the formula, N is the number of turns of the coil, and V is the voltage at two ends of the coil; cross-sectional area of the magnetic path of the Ae core.
Wherein, the conclusion that the coil holds 200W and the resistance is 50 omega, and the enameled wire needs to be wound for 7 circles is derived from the following steps: for short-wave continuous waves, the maximum allowable magnetic induction intensity of the magnetic core is about 100 gauss, in order to ensure that the magnetic ring works in a linear region, Bmax is selected to be 70 gauss, and the minimum product of Ae and N is as follows:
according to Ae N ≥ 16.1cm2，Ae＝(60-25)*15/2＝2.625cm2N is equal to or greater than 6.133. I.e. the number of windings is at least greater than 7.
When the resistance value lifting module needs to lift and drag, under the structure of two branches (including two antennas in the antenna array), the requirement reaches 1: 2, 50 Ω to 100 Ω, so 7, 9 turns are taken, i.e., { (9+9)/(7+9+9)) }20.5. Based on the above example and the power divider in fig. 6, an embodiment of the present application provides a schematic diagram of a power dividing module, where the power dividing module is composed of one magnetic ring and three enameled wires, and the three enameled wires with 7 turns obtain a first inductance, a second inductance, and a third inductance, respectively, as shown in fig. 7.
Based on the above example and the power divider in fig. 6, an embodiment of the present application provides a schematic diagram of a resistance value lifting module, where the resistance value lifting module is composed of one magnetic ring and three enameled wires, one enameled wire is wound on the ring of the magnetic ring for 7 circles to obtain a fourth inductor, and the other two enameled wires are wound on the ring of the magnetic ring for 9 circles to obtain a fifth inductor and a sixth inductor, respectively, as shown in fig. 8.
In the antenna array, the outer radiation ring and the inner coupling ring are made of aluminum alloy tubes. The aluminum alloy material has light weight and good heat dissipation property, is easy to bend and form, and has good weather resistance after surface treatment. Therefore, the aluminum alloy material is used as the material of the outer radiation ring and the inner coupling ring, the process difficulty of the antenna can be reduced, and the service life of the antenna is prolonged.
Based on the above antenna array, the present application provides a power divider circuit for an antenna array application including two antennas, as shown in fig. 6, including: the antenna array comprises a first antenna and a second antenna, the power distribution module comprises a first inductor, a second inductor, a third inductor and an isolation resistor, the first antenna is electrically connected with the first end of the first inductor through a first matcher, the second end of the first inductor is electrically connected with the first end of the isolation resistor, the second end of the isolation resistor is electrically connected with the second end of the second inductor, and the second end of the isolation resistor is grounded; the second antenna is electrically connected with the first end of the second inductor through the second matcher, and the second end of the second inductor is electrically connected with the second end of the isolation resistor; the first end of the first inductor is electrically connected with the first end of the third inductor. The resistance value lifting module comprises a fourth inductor, a fifth inductor and a sixth inductor; the second end of the third inductor is electrically connected with the first end of the fourth inductor; the second end of the fourth inductor is electrically connected with the fifth inductor and the sixth inductor which are connected in series with the ground; the second end of the fourth inductor is electrically connected with the radio frequency module.
Based on the antenna array, an embodiment of the present application further provides a signal receiving method flow, as shown in fig. 9, including:
and step 903, transmitting the first signal to a radio frequency module by the resistance value lifting module.
In the method, the power distribution module in the power distributor is used for combining the received signals of the first antenna and the second antenna and shunting the transmitted signals of the first antenna and the second antenna, so that the signal combining and shunting of the antenna array are realized, and the receiving and transmitting quality of the signals is improved. The resistance value of the signal combined circuit and the signal shunted circuit is ensured to meet the requirements of the combined circuit and the shunted circuit through the resistance value lifting module in the power divider, and the receiving and transmitting quality of the signal is improved.
Based on the antenna array, an embodiment of the present application further provides a signal transmitting method flow, as shown in fig. 10, including:
1001, a resistance value lifting module in the power divider receives a third signal transmitted by a radio frequency module;
In the method, the transmitting signals transmitted by the radio frequency module are shunted aiming at the transmitting signals of the first antenna and the second antenna through the power distribution module in the power distributor, and the receiving signals of the first antenna and the second antenna are combined to realize signal shunting and combining of the antenna array so as to improve the receiving and transmitting quality of the signals. The resistance value of the signal sent by the radio frequency module is increased through the resistance value lifting module in the power divider, so that the resistance value is divided and passes through the first antenna and the second antenna, or the resistance value of the signal received by the power divider is reduced through the resistance value lifting module to be transmitted to the radio frequency module, the resistance value of the signal divided and the signal combined is ensured to meet the requirements of combining and dividing, and the same is achieved, so that the signal receiving and sending quality is improved.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. An antenna array is characterized in that the antenna array comprises at least two antennas and a power divider, each antenna comprises an outer radiation ring and an inner coupling ring, the outer radiation ring and the inner coupling ring are rectangular annular structures which are in a shape of a Chinese character 'hui' and surround on the same plane, and the outer radiation ring and the inner coupling ring are used for inductively coupling and transmitting and receiving signals through a matcher;
each antenna is electrically connected with an antenna access end of the power distributor through a corresponding matcher, and the power distributor is provided with a corresponding antenna access end for each antenna and a corresponding radio frequency access end for the radio frequency module;
and the radio frequency access end of the power distributor is electrically connected with the radio frequency module.
2. An antenna array as in claim 1 wherein said power divider includes a power divider module and a resistance raising and lowering module;
each antenna is electrically connected with an antenna access end of the power distribution module in the power distributor through a corresponding matcher, and the power distribution module is provided with a corresponding antenna access end for each antenna;
the connecting end of the power distribution module, which aims at the resistance value lifting module, is electrically connected with one end of the resistance value lifting module;
the other end of the resistance lifting module is electrically connected with the radio frequency module, and the other end of the resistance lifting module is the radio frequency access end.
3. An antenna array as in claim 2 wherein said antenna array comprises a first antenna and a second antenna, said power distribution module comprises a first inductor, a second inductor, a third inductor, and an isolation resistor,
the first antenna is electrically connected with a first end of the first inductor through a first matcher, a second end of the first inductor is electrically connected with a first end of the isolation resistor, a second end of the isolation resistor is electrically connected with a second end of the second inductor, and a second end of the isolation resistor is grounded;
the second antenna is electrically connected with a first end of the second inductor through a second matcher, and a second end of the second inductor is electrically connected with a second end of the isolation resistor;
the first end of the first inductor is electrically connected with the first end of the third inductor.
4. An antenna array as in claim 3 wherein said resistance raising and lowering module comprises a fourth inductor, a fifth inductor and a sixth inductor;
the second end of the third inductor is electrically connected with the first end of the fourth inductor;
the second end of the fourth inductor is electrically connected with a fifth inductor and a sixth inductor which are connected in series with the ground;
and the second end of the fourth inductor is electrically connected with the radio frequency module.
5. An antenna array as in claim 4 wherein said first inductor, said second inductor, said third inductor and said fourth inductor have equal resistance values and said fifth inductor and said sixth inductor have equal resistance values;
the square of the ratio of the sum of the resistance values of the fifth inductance and the sixth inductance to the sum of the resistance values of the fourth inductance, the fifth inductance, and the sixth inductance is 1/2.
6. An antenna array as claimed in claim 1, wherein the matcher comprises a matching circuit and a tuning capacitor, the outer radiation loop is connected to the tuning capacitor, and the inner coupling loop is used for connecting the matching circuit.
7. An antenna array as claimed in claim 2, wherein the power distribution module is composed of a magnetic loop and three enameled wires, the magnetic loop is made of a power type nickel-zinc magnetic material, the magnetic permeability is 250, the size is 60 mm in outer diameter, 15mm in inner aperture and 25 mm in thickness, each enameled wire is wound on the loop of the magnetic loop for 7 turns to obtain a first inductor, a second inductor and a third inductor;
the resistance value lifting module is composed of a magnetic ring and three enameled wires, the magnetic ring is made of power type nickel-zinc magnetic materials, the magnetic conductivity is 250, the size is 60 mm in outer diameter, 15mm in inner aperture and 25 mm in thickness, one enameled wire is wound on the ring of the magnetic ring for 7 circles to obtain a fourth inductor, and the other two enameled wires are respectively wound on the ring of the magnetic ring for 9 circles to obtain a fifth inductor and a sixth inductor respectively.
8. An antenna array as in claim 1 wherein said outer radiating loop and said inner coupling loop are of aluminum alloy tubing.
9. A signal receiving method, based on any of the antennas in claims 1-8, comprising:
the method comprises the steps that a first antenna and a second antenna receive a first signal, the first signal is transmitted to a power distribution module in a power distributor through a first matcher and a second matcher respectively to be subjected to power synthesis, and a second signal is obtained;
the power distribution module transmits the second signal to a resistance value lifting module in the power distributor to reduce the resistance value to obtain the first signal;
the resistance lifting module transmits the first signal to a radio frequency module.
10. A signal transmission method, based on any of the antennas of claims 1-8, comprising:
a resistance value lifting module in the power divider receives a third signal transmitted by the radio frequency module;
the resistance value lifting module raises the resistance value of the third signal to obtain a fourth signal;
the resistance value lifting module transmits the fourth signal to a power distribution module in the power distributor;
the power distribution module performs power distribution on the fourth signal to obtain a third signal transmitted to a first matcher and a third signal of a second matcher, and the third signal is transmitted by a first antenna corresponding to the first matcher and a second antenna corresponding to the second matcher.
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