CN114696054B - Adjustable power divider, method, electronic device and storage medium - Google Patents
Adjustable power divider, method, electronic device and storage medium Download PDFInfo
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- CN114696054B CN114696054B CN202210305262.3A CN202210305262A CN114696054B CN 114696054 B CN114696054 B CN 114696054B CN 202210305262 A CN202210305262 A CN 202210305262A CN 114696054 B CN114696054 B CN 114696054B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
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- H01P5/12—Coupling devices having more than two ports
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Abstract
The application discloses an adjustable power divider, a method, electronic equipment and a storage medium, the adjustable power divider comprises a microwave input port, two microwave output ports and two adjusting ports, the two adjusting ports are respectively connected with two short-circuit reflecting surfaces, the two adjusting ports, a scattering matrix between the input port and the two output ports is a preset target scattering matrix, the two adjusting ports are adjusted, the phases of the two short-circuit reflecting surfaces are adjusted to be target phases, the phases of the two short-circuit reflecting surfaces are controlled to be opposite, and therefore microwave signals are output from the two output ports according to a target power dividing ratio corresponding to the target phases. The embodiment of this application only can realize the power distribution ratio of output port arbitrary proportion through the position of removing the plane of reflection, adjusts efficiently, and transmission loss is little, simple structure, and is small, the processing of being convenient for.
Description
Technical Field
The present disclosure relates to the field of microwave transmission technologies, and in particular, to an adjustable power divider, an adjustable power divider method, an electronic device, and a storage medium.
Background
Microwaves are electromagnetic waves of a specific frequency band, generally considered as having a frequency range of 300MHz to 300GHz, and a corresponding wavelength range of 1 m to 1 mm, which is between ordinary radio waves and infrared rays. The application fields of the microwave band are many, including radio communication and radar fields. The microwave transmission line system is a system for transmitting microwave energy and information, and has different transmission line types for microwaves of different wave bands and different transmission modes. The hollow metal waveguide has a simple structure and is convenient to process; the transmission loss is small; no radiation loss; the power capacity is large. Due to the above advantages, hollow metal waveguides are commonly used as transmission lines for high power microwave systems.
Some microwave systems have power regulation requirements to accommodate different applications. The common power regulation methods at present mainly include: a method for directly regulating the output power of the power source, an attenuation absorption method, a double-source synthesis method, a power divider regulation method and the like.
In the first method, the output power of the power source is directly adjusted. The disadvantages of this method are: power sources such as a magnetron or a klystron usually work in a saturation amplification area, and the parameters of a modulator need to be adjusted to realize power adjustment; after the output power is adjusted, a stable working state can be achieved often in a certain time, and the problems of impedance matching and the like can exist, so that the adjustment efficiency is not high.
The second method of attenuated absorption is to add an attenuator to adjust the power. However, the attenuator is an element made of microwave absorbing material, and generates heat after absorbing power, and a water cooling system is required when the power is high. And the microwave utilization efficiency of this method is not high.
The third double-source synthesis method is to synthesize the signals generated by the two klystron power sources through a-3 dB coupler. The method requires that the amplitudes of signals generated by the two klystrons are the same but the phases are different, so that the output signals can be adjusted through the phase difference of the power source signals, and the power distribution ratio of any proportion is realized. However, this method can only be used for devices with two power sources.
A fourth method is to split the microwave power into two beams using a power splitter element to adjust the power. In general, one of the two separated power beams is transmitted to the following system, and the other power beam can be transmitted to another load system or connected with a directional coupler and then connected with a microwave measuring and controlling system.
Most of the current power distributors are designed with fixed power distribution ratios, cannot be adjusted and are difficult to meet the requirements of different application occasions. The research on the adjustable power divider is less, and the design is more complex.
Disclosure of Invention
The application provides an adjustable power divider, an adjustable power divider method, electronic equipment and a storage medium, the power divider ratio of any proportion of an output port can be realized only by moving the position of a reflecting surface, the adjusting efficiency is high, the transmission loss is small, the structure is simple, the size is small, and the processing is convenient.
An embodiment of the first aspect of the present application provides an adjustable power divider, including: an input port for inputting a microwave signal; the first output port and the second output port are symmetrical about a central plane of the input port and are respectively used for outputting microwave signals; the phase difference between the first short-circuit reflecting surface and the second short-circuit reflecting surface is controlled to be 180 degrees while the phase of the first short-circuit reflecting surface or the second short-circuit reflecting surface is adjusted to be a target phase, so that microwave signals are output from the first output port and the second output port according to a target power distribution ratio corresponding to the target phase.
Optionally, in an embodiment of the present application, a relationship between the preset target scattering matrix and the input port, the first output port, the second output port, the first adjusting port, and the second adjusting port in a specific reference plane is:
wherein, y 1 Is the output of the input terminal, y 2 Is the output of the first output port, y 3 Is the output of the second output port, y 4 Is the output of the first regulation port, y 5 Is the output of the second regulation port, p 4 Is the reflection coefficient, p, of the first short-circuited reflecting surface 5 Is the reflection coefficient of the second short-circuited reflection surface, and p 4 ＝-ρ 5 ，S 5 And presetting a target scattering matrix.
Optionally, in an embodiment of the present application, the first adjusting port and the second adjusting port are implemented by circular waveguide ports, and the first short-circuit reflecting surface and the second short-circuit reflecting surface are implemented by short-circuit pistons; the circular waveguide port comprises a first TE11 mode and a second TE11 mode, the first TE11 mode and the second TE11 mode are orthogonally polarized, and a scattering matrix of the circular waveguide port is made to be the preset target scattering matrix by adjusting parameters of the circular waveguide port; the short-circuit piston is used for adjusting the reflection of the first TE11 mode and the second TE11 mode, and the phase difference between the two orthogonally polarized TE11 modes is 180 degrees, so that the microwave signal power output by the first output port and the second output port is distributed according to the target power.
Optionally, in one embodiment of the present application, the shorting piston comprises a circular waveguide polarizer; the circular waveguide polarizer is connected to the circular waveguide port, and is configured to reflect the first TE11 mode of the circular waveguide port, and to set a third short-circuit reflection surface at a preset position, and to reflect the second TE11 mode by the third short-circuit reflection surface, where a reflection coefficient of the first TE11 mode and a reflection coefficient of the second TE11 mode are opposite numbers to each other, and the position of the circular waveguide polarizer is adjusted, so that the first output port and the second output port output microwave signals according to a target power distribution ratio.
Optionally, in one embodiment of the present application, the circular waveguide polarization comprises a circular waveguide-rectangular waveguide; the circular waveguide-rectangular waveguide is used for adjusting the narrow edge of the rectangular waveguide, reflecting the TE01 mode of the rectangular waveguide after the first TE11 mode is converted through the circular waveguide-rectangular waveguide, converting the second TE11 mode into the TE10 mode of the rectangular waveguide through the second TE11 mode, setting a fourth short-circuit reflecting surface at the preset position, and reflecting the TE10 mode of the rectangular waveguide through the fourth short-circuit reflecting surface.
An embodiment of a second aspect of the present application provides an adjustable power allocation method, including the following steps: controlling the microwave signal to be input from the input port; adjusting the first adjusting port and the second adjusting port to enable scattering matrixes among the first adjusting port, the second adjusting port, the input port and the first output port and the second output port to be preset target scattering matrixes, adjusting the phase of the first short-circuit reflecting surface or the phase of the second short-circuit reflecting surface to be a target phase, and simultaneously enabling the phase of the first short-circuit reflecting surface to be 180 degrees different from that of the second short-circuit reflecting surface; and controlling the microwave signals to be output from the output port according to the target power distribution ratio corresponding to the target phase.
Optionally, in an embodiment of the present application, a relationship between the preset target scattering matrix and the input port, the first output port, the second output port, the first adjusting port, and the second adjusting port on a specific reference plane is:
wherein, y 1 As an output of the input terminal, y 2 Is the output of the first output port, y 3 Is the output of the second output port, y 4 Is the output of the first regulation port, y 5 Is the output of the second regulation port, p 4 Is the reflection coefficient, p, of the first short-circuited reflecting surface 5 Is the reflection coefficient of the second short-circuited reflection surface, and p 4 ＝-ρ 5 ，S 5 The matrix is adjusted for the target.
An embodiment of a third aspect of the present application provides an electronic device, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the program to perform the adjustable power distribution method as described in the above embodiments.
A fourth aspect of the present application provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to execute the adjustable power allocation method according to the foregoing embodiment.
Therefore, the application has at least the following beneficial effects:
the adjustable power divider provided by the embodiment of the application comprises a microwave input port, a first output port, a second output port, a first adjusting port and a second adjusting port, wherein the first adjusting port and the second adjusting port are respectively connected with a first short-circuit reflecting surface and a second short-circuit reflecting surface, the microwave input port, the first output port, the second output port and a scattering matrix between the first adjusting port and the second adjusting port are preset target scattering matrixes, and the phases of the first short-circuit reflecting surface or the second short-circuit reflecting surface are controlled to be opposite to each other while being adjusted to be target phases by adjusting the adjusting ports, so that microwave signals are output from the two output ports according to a target power distribution ratio corresponding to the target phases. The embodiment of this application only can realize the power distribution ratio of output port arbitrary proportion through the position of removing the plane of reflection, adjusts efficiently, and transmission loss is little, simple structure, and is small, the processing of being convenient for.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is an exemplary diagram of an adjustable power splitter apparatus according to an embodiment of the present application;
fig. 2 is a schematic view of a structure of a waveguide of the swing gate type according to an embodiment of the present application;
FIG. 3 is a field diagram of a circular waveguide-rectangular waveguide transition provided in accordance with one embodiment of the present application;
FIG. 4 is a schematic diagram of a compact adjustable distributor provided according to an embodiment of the present application;
fig. 5 is a flowchart of a method for adjusting a power divider according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Description of reference numerals: input port-100, first output port-200, second output port-300, first regulation port 400, second regulation port 500, memory-601, processor-602, communication interface-603.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
An adjustable power divider, a method, an electronic device, and a storage medium according to embodiments of the present application are described below with reference to the accompanying drawings. Most of the current power dividers mentioned in the background art are designed with a fixed power dividing ratio, are not adjustable, and are difficult to meet the requirements of different application occasions. The adjustable power divider provided by the embodiment of the application comprises a microwave input port, a first output port, a second output port, a first adjusting port and a second adjusting port, wherein the first adjusting port and the second adjusting port are respectively connected with a first short-circuit reflecting surface and a second short-circuit reflecting surface, the microwave input port, the first output port, the second output port and a scattering matrix between the first adjusting port and the second adjusting port are preset target scattering matrixes, and the phases of the first short-circuit reflecting surface or the second short-circuit reflecting surface are adjusted to be target phases by adjusting the adjusting ports, and the phases of the first short-circuit reflecting surface and the second short-circuit reflecting surface are controlled to be opposite, so that microwave signals are output from the two output ports according to the target power dividing ratio corresponding to the target phases. The embodiment of this application only can realize the power distribution ratio of output port arbitrary proportion through the position of removing the plane of reflection, adjusts efficiently, and transmission loss is little, simple structure, and is small, the processing of being convenient for. Therefore, the problems that the most compact design of the current adjustable power divider is composed of a microwave network and a short-circuit piston, the design is complex and the like are solved.
Fig. 1 is a schematic structural diagram of an adjustable power divider according to an embodiment of the present disclosure.
As shown in fig. 1, the adjustable power divider includes: input port 100, first output port 200, second output port 300, first regulated port 400, and second regulated port 500.
The input port 100 is used for inputting microwave signals. The first output port 200 and the second output port 300, and the first output port 200 and the second output port 300 are symmetrical with respect to a central plane of the input port 100, and respectively output microwave signals. The scattering matrixes among the input port 100, the first output port 200, the second output port 300, the first adjusting port 400 and the second adjusting port 500 are preset target scattering matrixes, the first adjusting port 400 and the second adjusting port 500 are respectively connected with the first short-circuit reflecting surface and the second short-circuit reflecting surface, and the phase difference between the first short-circuit reflecting surface and the second short-circuit reflecting surface is controlled by 180 degrees while the phase of the first short-circuit reflecting surface or the phase of the second short-circuit reflecting surface is adjusted to be a target phase, so that microwave signals are output from the first output port 200 and the second output port 300 according to a target power distribution ratio corresponding to the target phase.
It can be understood that it is assumed that the power splitting ratio is adjusted by introducing an adjustment port on the basis of a microwave device having one microwave input port and two microwave output ports. For the four-port network, it can be proved theoretically that the function of power regulation cannot be realized by the different microwave networks.
It can be further demonstrated that for the above-described five-port network in which the first output port 200, the second output port 300, and the first regulation port 400 and the second regulation port 500 are respectively plane-symmetric with respect to the center of the input port 100, there is a unique S matrix that can implement the power regulation function. The relation of the S matrix in a specific reference plane is as follows:
any phase change of the S matrix is regarded as the same matrix. Meanwhile, the description of the S matrix is based on a theoretical ideal model, and other embodiments similar to the theoretical ideal model and having no transmission efficiency or matching effect to the description above should also be included.
For S matrices such as S 5 The five port network shown, the first tuning port 400 and the second tuning port 500 are ported with reflecting surfaces that are 180 ° out of phase, i.e., ρ 4 ＝-ρ 5 At this time, a three-port network can be formed, when the position (phase) of the short-circuit surface is changed, the input port 100 is always matched without reflection, power is distributed to the two output ports, and the power distribution ratio between the first output port 200 and the second output port 300 is adjustable in the range from 0 to infinity. The function of a so-called power divider can be realized.
It has been known that for a five-port microwave network, which includes an input port 100, a first output port 200, a second output port 300 and two tuning ports, the relationship of the S matrix of the five-port network in a specific reference plane is:
further, an embodiment of the present application illustrates a swing gate type waveguide structure, as shown in fig. 2, which includes an input port 100, a first output port 200, a second output port 300, and a circular band port. Because the fundamental mode in the circular waveguide is TE11 and polarization degeneracy exists, two orthogonally polarized TE11 modes, i.e. a first TE11 mode and a second TE11 mode, in an actual circular waveguide port can be equivalently orthogonally polarized in two electrical ports, i.e. the first TE11 mode and the second TE11 mode, with the polarization directions as shown in fig. 2, by using a short-circuit branch of a inverted-gate structure and an inwardly concave circular truncated coneThe parameters of the cylinder are adjusted to make the adjusting matrix of the circular waveguide port be a target scattering matrix even if the S parameters meet the S 5 The requirements of (1).
Adjusting parameters of the circular band port such that the S parameter satisfies S 5 And adjusting the reflection of the first TE11 mode and the second TE11 mode by the short-circuit piston, wherein the phase difference between the two orthogonally polarized TE11 modes is 180 degrees, so that the microwave signal power output by the first output port and the microwave signal power output by the second output port according to the target power distribution ratio.
Alternatively, in one embodiment of the present application, the shorting piston may be a circular waveguide polarizer. The circular waveguide polarizer is connected to the circular waveguide port in the above embodiment, and the circular waveguide polarizer reflects the first TE11 mode of the circular waveguide port, passes through the second TE11 mode of the circular waveguide port, and sets a third short-circuit reflective surface at a preset position, and reflects the second TE11 mode through the third short-circuit reflective surface, where the reflection coefficient of the first TE11 mode and the reflection coefficient of the second TE11 mode are opposite numbers.
In embodiments of the present application, the circular waveguide polarization may be circular waveguide-rectangular waveguide. The round waveguide-rectangular waveguide reflects the TE01 mode of the rectangular waveguide converted from the first TE11 mode through the round waveguide-rectangular waveguide, converts the second TE11 mode into the TE10 mode of the rectangular waveguide through the second TE11 mode by adjusting the narrow edge of the rectangular waveguide, sets a fourth short-circuit reflecting surface at a preset position, and reflects the TE10 mode of the rectangular waveguide through the fourth short-circuit reflecting surface.
It will be appreciated that in the above embodiments, the two tuning ports of the power splitter can be implemented by circular waveguide ports, and in order to further implement the function of the power splitter, it is required that the two tuning ports are connected to the short-circuited reflecting surfaces with a phase difference of 180 °. The first tuning port and the second tuning port are two orthogonally polarized TE11 modes in the same circular waveguide. Therefore, it is necessary to design a short-circuit piston capable of reflecting the TE11 mode and having a phase difference of 180 ° between the two orthogonal polarization modes.
Further, a microwave structure may be designed such that one of the TE11 modes is in the microwave structureThe structure is reflected and another TE11 mode orthogonal thereto can pass through the structure. After passing through the structure, at λ g The short-circuit reflecting surface is arranged at the position/4, so that the two orthogonally polarized TE11 modes in the circular waveguide can be reflected, the reflection coefficients are opposite numbers, and rho is realized 4 ＝-ρ 5 . The microwave structure may be referred to as a circular waveguide polarizer, functioning similarly to an optical polarizer.
In embodiments of the present application, a circular waveguide polarizer may be constructed using a circular waveguide-to-rectangular waveguide transition. One TE11 mode is converted into a TE01 mode of the rectangular waveguide through the circular waveguide-rectangular waveguide, and the narrow side b of the rectangular waveguide is adjusted to cut off the TE01 mode, as shown in (1) in fig. 3. The other orthogonally polarized TE11 mode is converted into a TE10 mode of a rectangular waveguide through the circular waveguide-rectangular waveguide, and can be matched and passed through after impedance matching. After passing through the structure, at λ g The short-circuit reflecting surface is arranged at the position/4, so that the two orthogonally polarized TE11 modes in the circular waveguide can be reflected, the reflection coefficients are opposite numbers, and rho is realized 4 ＝-ρ 5 As shown in (2) of fig. 3. And then, the position of the circular waveguide polarizer is adjusted, so that the first output port and the second output port output microwave signals according to the target power distribution ratio.
To sum up, the circular waveguide in the swing gate type waveguide structure is connected to the circular waveguide polarizer reflective piston formed by the circular waveguide-rectangular waveguide conversion structure, so as to form the power divider including an input port 100, a first output port 200, and a second output port 300. When the position of the reflective piston of the circular waveguide polarizer is changed, the input port 100 is always matched without reflection, power is distributed to the first output port 200 and the second output port 300, and the power distribution ratio between the first output port 200 and the second output port 300 is adjustable in the range from 0 to infinity, as shown in fig. 4.
In summary, the embodiment of the present application constructs a turning gate type T-shaped waveguide structure that meets specific requirements (S matrix) while designing an adjustable power splitter, and designs a polarization structure that one linearly polarized mode of a circular waveguide TE11 model can pass through and an orthogonally polarized mode reflects, or a microwave reflection device that realizes any phase between two orthogonally polarized TE11 modes in a circular waveguide. Thereby not only make the power divider of this application can adjust according to arbitrary power distribution ratio, simultaneously, because the structure volume reduces greatly before comparing, also greatly degree has promoted the compactedness of design.
According to the adjustable power divider provided by the embodiment of the application, the adjustable power divider comprises a microwave input port, a first output port, a second output port, a first adjusting port and a second adjusting port, wherein the first adjusting port and the second adjusting port are respectively connected with a first short-circuit reflecting surface and a second short-circuit reflecting surface, scattering matrixes among the microwave input port, the first output port, the second output port and the first adjusting port and the second adjusting port are preset target scattering matrixes, and the phases of the first short-circuit reflecting surface or the second short-circuit reflecting surface are controlled to be opposite while the phases of the first short-circuit reflecting surface or the second short-circuit reflecting surface are adjusted to be target phases by adjusting the adjusting ports, so that microwave signals are output from the two output ports according to the target power distribution ratio corresponding to the target phases. The embodiment of the application can realize the power distribution ratio of any proportion of the output ports only by moving the position of the reflection piston in the circular waveguide polarizer, and has the advantages of high regulation efficiency, small transmission loss, simple structure, small volume and convenient processing.
Specifically, fig. 5 is a flowchart of an adjustable power allocation method according to an embodiment of the present disclosure.
As shown in fig. 5, the adjustable power allocation method includes the steps of:
in step S101, a control microwave signal is input from the input port.
In step S102, the first adjustment port and the second adjustment port are adjusted so that scattering matrices between the first adjustment port and the second adjustment port and the input port, and between the first output port and the second output port are preset target scattering matrices, and the phases of the first short-circuit reflection surface and the second short-circuit reflection surface are 180 ° different while the phases of the first short-circuit reflection surface and the second short-circuit reflection surface are adjusted to be target phases.
In step S103, the microwave signal is controlled to be output from the output port at a target power distribution ratio corresponding to the target phase.
Optionally, in an embodiment of the present application, the relationship between the preset target scattering matrix and the input port, the first output port, the second output port, the first adjusting port, and the second adjusting port in a specific reference plane is:
wherein, y 1 Is the output of the input terminal, y 2 Is the output of the first output port, y 3 Is the output of the second output port, y 4 Is the output of the first regulation port, y 5 For the output of the second regulated port, p 4 Is the reflection coefficient of the first short-circuited reflecting surface, p 5 Is the reflection coefficient of the second short-circuited reflection surface, and p 4 ＝-ρ 5 ，S 5 The matrix is adjusted for the target.
It should be noted that the foregoing explanation of the embodiment of the adjustable power divider is also applicable to the adjustable power dividing method of the embodiment, and is not repeated herein.
According to the adjustable power distribution method provided by the embodiment of the application, the microwave signal is input from the input port by controlling; the two adjusting ports are adjusted to enable the scattering matrixes between the first adjusting port and the second adjusting port, between the input port and the first output port and between the second output port to be preset target scattering matrixes, the phases of the first short-circuit reflecting surface or the second short-circuit reflecting surface are controlled to be opposite to the phases of the second short-circuit reflecting surface while the phases of the first short-circuit reflecting surface or the second short-circuit reflecting surface are adjusted to be target phases through adjusting the first adjusting port and the second adjusting port, and therefore microwave signals are output from the two output ports according to the target power distribution ratio corresponding to the target phases. The embodiment of this application only can realize the power distribution ratio of output port arbitrary proportion through the position of removing the plane of reflection, adjusts efficiently, and transmission loss is little, simple structure, and is small, the processing of being convenient for.
Fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present application. The electronic device may include:
a memory 601, a processor 602, and a computer program stored on the memory 601 and executable on the processor 602.
The processor 602, when executing the program, implements the adjustable power allocation method provided in the above embodiments.
Further, the electronic device further includes:
a communication interface 603 for communication between the memory 601 and the processor 602.
The memory 601 is used for storing computer programs that can be run on the processor 602.
If the memory 601, the processor 602 and the communication interface 603 are implemented independently, the communication interface 603, the memory 601 and the processor 602 may be connected to each other through a bus and perform communication with each other. The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 6, but this is not intended to represent only one bus or type of bus.
Optionally, in a specific implementation, if the memory 601, the processor 602, and the communication interface 603 are integrated on a chip, the memory 601, the processor 602, and the communication interface 603 may complete mutual communication through an internal interface.
The processor 602 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement embodiments of the present Application.
The present embodiments also provide a computer-readable storage medium having a computer program stored thereon, wherein the program, when executed by a processor, implements the adjustable power allocation method as above.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or N embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "N" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more N executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.
It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
Claims (7)
1. An adjustable power divider, comprising:
the input port is used for inputting microwave signals;
the first output port and the second output port are symmetrical about a central plane of the input port and are respectively used for outputting microwave signals;
the phase difference between the first short-circuit reflecting surface and the second short-circuit reflecting surface is controlled to be 180 degrees by adjusting the phase of the first short-circuit reflecting surface or the second short-circuit reflecting surface to be a target phase, so that microwave signals are output from the first output port and the second output port according to a target power distribution ratio corresponding to the target phase;
the relationship between the preset target scattering matrix and the input port, the first output port, the second output port, the first adjusting port and the second adjusting port is as follows:
wherein, y 1 Is the output of the input terminal, y 2 Is the output of the first output port, y 3 Is the output of the second output port, y 4 Is the output of the first regulation port, y 5 Is the output of the second regulation port, p 4 Is the reflection coefficient, p, of the first short-circuited reflecting surface 5 Is the reflection coefficient of the second short-circuited reflection surface, and p 4 ＝-ρ 5 ，S 5 A target scattering matrix is preset.
2. The adjustable power splitter of claim 1, wherein the first and second tuning ports are implemented by circular waveguide ports and the first and second shorting reflective surfaces are implemented by shorting pistons;
the circular waveguide port comprises a first TE11 mode and a second TE11 mode, the first TE11 mode and the second TE11 mode are orthogonally polarized, and a scattering matrix of the circular waveguide port is made to be the preset target scattering matrix by adjusting parameters of the circular waveguide port;
the short-circuit piston is used for adjusting the reflection of the first TE11 mode and the second TE11 mode, and the phase difference between the two orthogonally polarized TE11 modes is 180 degrees, so that the microwave signal power output by the first output port and the microwave signal power output by the second output port according to the target power distribution ratio is obtained.
3. The adjustable power splitter of claim 2, wherein the shorting piston comprises a circular waveguide polarizer;
the circular waveguide polarizer is connected to the circular waveguide port, and is configured to reflect the first TE11 mode of the circular waveguide port, pass through the second TE11 mode of the circular waveguide port, set a third short-circuit reflection surface at a preset position, reflect the second TE11 mode through the third short-circuit reflection surface, where a reflection coefficient of the first TE11 mode and a reflection coefficient of the second TE11 mode are opposite numbers, and output microwave signals according to a target power distribution ratio by adjusting the position of the circular waveguide polarizer.
4. The adjustable power splitter of claim 3, wherein the circular waveguide polarization comprises a circular waveguide-rectangular waveguide;
the circular waveguide-rectangular waveguide is used for adjusting the narrow edge of the rectangular waveguide, reflecting the TE01 mode of the rectangular waveguide after the first TE11 mode is converted through the circular waveguide-rectangular waveguide, converting the second TE11 mode into the TE10 mode of the rectangular waveguide through the second TE11 mode, setting a fourth short-circuit reflecting surface at the preset position, and reflecting the TE10 mode of the rectangular waveguide through the fourth short-circuit reflecting surface.
5. An adjustable power distribution method for an adjustable power distributor according to claims 1-4, comprising the steps of:
controlling a microwave signal to be input from the input port;
adjusting the first adjusting port and the second adjusting port to enable scattering matrixes among the first adjusting port, the second adjusting port, the input port and the first output port and the second output port to be preset target scattering matrixes, adjusting the phase of the first short-circuit reflecting surface or the phase of the second short-circuit reflecting surface to be a target phase, and enabling the phase of the first short-circuit reflecting surface to be 180 degrees different from that of the second short-circuit reflecting surface;
and controlling the microwave signals to be output from the output port according to the target power distribution ratio corresponding to the target phase.
6. An electronic device, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the program to implement the adjustable power allocation method of claim 5.
7. A computer-readable storage medium, on which a computer program is stored, the program being executable by a processor for implementing the adjustable power allocation method as claimed in claim 5.
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| CN104167585A (en) * | 2014-07-30 | 2014-11-26 | 西北核技术研究所 | Microwave power distributor, microwave power synthesizer and microwave power distribution synthesizer |
| CN109818114A (en) * | 2018-12-13 | 2019-05-28 | 西北核技术研究所 | A kind of compact high power capacity waveguide phase shifter and waveguide phase-moving method |
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| CN107834143B (en) * | 2017-09-22 | 2020-04-07 | 西安电子科技大学 | Rectangular waveguide multi-path equal-division power divider |
| KR101996957B1 (en) * | 2018-03-15 | 2019-07-08 | 한국원자력연구원 | power distribution capable Magic T waveguide |
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| CN112103606A (en) * | 2020-09-08 | 2020-12-18 | 清华大学 | Adjustable coaxial line type power divider and using method |
| CN112909469B (en) * | 2021-02-19 | 2021-09-28 | 中国科学院高能物理研究所 | Waveguide power distribution and synthesis method with arbitrary power ratio and distribution and synthesis device |
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| CN109818114A (en) * | 2018-12-13 | 2019-05-28 | 西北核技术研究所 | A kind of compact high power capacity waveguide phase shifter and waveguide phase-moving method |
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