CN116647242A - Millimeter wave odd-number-path high-efficiency power synthesis network structure - Google Patents
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- H—ELECTRICITY
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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
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Abstract
The invention belongs to the technical field of power synthesis in millimeter wave signal transmission, and provides a millimeter wave odd-number-path high-efficiency power synthesis network structure, which comprises: a millimeter wave transmitter signal transmitting unit for transmitting an initial transmission signal; the power output path number acquisition unit is used for acquiring the power output path number; the first mapping unit is used for establishing a first mapping relation of the initial transmitting signal distribution times; a second mapping unit, configured to establish a second mapping relationship of an allocation proportion of the initial transmission signal during each allocation; a signal transmission path generating unit for calculating a signal transmission path of the initial transmission signal transmitted to the signal output unit after signal distribution based on the power output path number, the first and second mapping relations; a signal loss calculation unit for calculating a signal loss of each signal transmission path; and the signal output unit is used for controlling the corresponding output port to output odd-number-path output signals with consistent amplitude and phase based on the signal loss of each signal transmission path.
Description
Technical Field
The invention relates to the technical field of power synthesis in the millimeter wave signal transmitting process, in particular to a millimeter wave odd-number-path high-efficiency power synthesis network structure.
Background
The high-power amplifier is a core component of the microwave/millimeter wave transmitter, the transmitting power of the high-power amplifier directly determines the acting distance and the anti-interference capability of the whole system, the GaAs power amplifier widely used in the millimeter wave frequency band at present has small output power and low additional efficiency, and the high-power output is realized by adopting a power synthesis technology.
The existing power synthesis can only realize 2 n The order output, namely: 2. 4, 8, 16 and … paths are synthesized, and the actual engineering is realizedIn applications, to achieve a sufficient power margin, only one-time amplifiers are often used, which both increases the platform load and reduces the MTBF of the transmitter.
For this reason, on the premise of ensuring the output power balance of the millimeter wave transmitter, an odd power synthesis scheme needs to be studied.
Disclosure of Invention
The invention aims to provide a millimeter wave odd-number-path high-efficiency power synthesis network structure, which can output odd-number-path output signals with consistent amplitude and phase at an output port on the premise of balancing output power and loss of a millimeter wave transmitter and can be suitable for wider application scenes.
The invention solves the technical problems and adopts the following technical scheme:
the millimeter wave odd-number-path high-efficiency power synthesis network structure comprises:
the millimeter wave transmitter signal transmitting unit is used for transmitting an initial transmitting signal, and the initial transmitting signal at least comprises a signal initial bandwidth and an initial frequency;
the power output path number acquisition unit is used for acquiring the power output path number, wherein the power output path number is an odd number and is at least three paths;
the first mapping unit is used for establishing a first mapping relation of initial transmitting signal distribution times according to the initial bandwidth, the initial frequency and the power output path number of the signals;
the second mapping unit is used for establishing a second mapping relation of the distribution proportion of the initial transmitting signal during each distribution according to the initial bandwidth, the initial frequency and the power output path number of the signal;
the signal transmission path generation unit is used for calculating a signal transmission path of the initial transmission signal which is transmitted to the signal output unit after signal distribution based on the power output path number, the first mapping relation and the second mapping relation;
a signal loss calculation unit for calculating a signal loss of each signal transmission path;
and the signal output unit is used for controlling the corresponding output port to output odd-number-path output signals with consistent amplitude and phase based on the signal loss of each signal transmission path.
As a further optimization, the system further comprises an initial transmission signal type judging unit, which is used for judging whether the type of the initial transmission signal is the type of the signal which is allowed to be transmitted by the current millimeter wave transmitter after the initial transmission signal is acquired, if so, controlling the millimeter wave transmitter signal transmitting unit to transmit the initial transmission signal, controlling the power output path number acquiring unit to acquire the power output path number, otherwise, notifying the current millimeter wave transmitter.
As a further optimization, the number of the power output paths is smaller than or equal to the number of the output ports.
As a further optimization, when the first mapping relation is established, the method includes:
calculating the distribution times of initial transmitting signals according to the amplitude, the phase and the power requirements of the output signals of the odd-numbered output signals output by the output ports;
taking the initial bandwidth, the initial frequency and the number of power output paths of the signal as a first data set, and taking the initial transmission signal distribution times as a second data set;
a first mapping relationship between the first data set and the second data set is established.
As a further optimization, when the second mapping relation is established, the method includes:
calculating the distribution proportion of the initial transmitting signal during each distribution according to the initial power and the distribution times of the initial transmitting signal;
taking the initial bandwidth, the initial frequency and the number of power output paths of the signal as a first data set, and taking the initial transmitting signal distribution times as a third data set;
a second mapping relationship between the first data set and the third data set is established.
As a further optimization, in calculating the signal transmission path, it includes:
acquiring an initial transmitting signal and a corresponding output port, wherein each output port corresponds to a unique port identifier;
taking a millimeter wave transmitter signal transmitting unit as a starting node of a signal transmission path;
calculating intermediate nodes based on the distribution times of the initial transmission signals, wherein each intermediate node distributes a signal once, and the number of the intermediate nodes is equal to the distribution times;
calculating the frequency of signals flowing through the intermediate nodes, dividing the intermediate nodes with the signal frequency difference within a first threshold range into the same group of intermediate nodes, and enabling the signals flowing through the same group of intermediate nodes to have the same frequency;
screening out the corresponding group of intermediate nodes of the minimum signal frequency flowing through the intermediate nodes, connecting the initial node with the intermediate nodes in each group, and respectively calculating the shortest transmission path;
and connecting the corresponding group of intermediate nodes with the minimum signal frequency flowing through the intermediate nodes to the corresponding output ports to form signal transmission paths from the initial node to the shortest transmission path and then to the corresponding output ports.
As a further optimization, the signal loss calculation unit, when calculating the signal loss of each signal transmission path, includes:
calculating and summing the signal loss of each intermediate node in the shortest transmission path, judging whether the difference value of the sum is in a second threshold range, if so, averaging the signal frequencies of the corresponding group of intermediate nodes of the minimum signal frequency flowing through the intermediate nodes, and transmitting the signal frequencies to the corresponding output ports;
otherwise, setting a first time delay, recalculating the shortest transmission path, calculating the signal loss of each intermediate node in the shortest transmission path, summing, judging whether the difference value of the sums is in a second threshold range again, if so, averaging the signal frequencies of the intermediate nodes in the corresponding group of the minimum signal frequencies flowing through the intermediate nodes, and transmitting to the corresponding output ports after the first time delay.
As further optimization, if the number of times of recalculating the shortest transmission path reaches the prescribed number of times, the millimeter wave transmitter is informed to perform fault detection and maintenance on each intermediate node, and after the maintenance is finished, the shortest transmission path is recalculated.
As a further optimization, the second threshold is smaller than the first threshold.
The beneficial effects of the invention are as follows: through the millimeter wave odd-number-path high-efficiency power synthesis network structure, firstly, an initial transmission signal is transmitted through a millimeter wave transmitter signal transmitting unit, and the initial transmission signal at least comprises a signal initial bandwidth and an initial frequency; secondly, acquiring the number of power output paths through a power output path number acquisition unit, wherein the number of power output paths is an odd number and is at least three paths; then, a first mapping relation of initial transmitting signal distribution times is established through a first mapping unit according to the initial bandwidth, the initial frequency and the power output path number of the signals, and a second mapping relation of distribution proportion of the initial transmitting signals during each distribution is established through a second mapping unit according to the initial bandwidth, the initial frequency and the power output path number of the signals; then, the signal transmission path generating unit calculates a signal transmission path of the initial transmitting signal which is transmitted to the signal output unit after signal distribution based on the power output path number, the first mapping relation and the second mapping relation; then, the signal loss of each signal transmission path is calculated by a signal loss calculation unit; and finally, controlling the odd-numbered output signals with consistent amplitude and phase of the corresponding output ports based on the signal loss of each signal transmission path through the signal output unit.
Therefore, the invention can output odd-number output signals with consistent output amplitude and phase at the output port on the premise of ensuring the output power and loss of the millimeter wave transmitter; in addition, the output odd-numbered signals have no phase difference and deviation, and when in use, the system error caused by the use of a millimeter wave transmitter is reduced to the greatest extent; meanwhile, the output paths of the odd-number paths of signals in the invention are less than or equal to the output port paths, so that each calculated output signal can be multiplexed with the existing 2 n The output port of the millimeter wave transmitter with the order output does not need to independently develop millimeter wave transmitters with the corresponding paths according to the signal output paths, so that the hardware cost is greatly reduced. Finally, since the output error of each signal is basically zero, the method canSo that the millimeter wave transmitter is applicable to wider application scenes.
Drawings
Fig. 1 is a schematic diagram of a topology structure of a millimeter wave 3-path efficient power synthesis network structure in an embodiment of the present invention;
fig. 2 is a schematic diagram of a topology structure of a millimeter wave 5-path efficient power synthesis network structure in an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Examples
For the sake of clarity and completeness, the technical scheme of the invention is described in detail by taking 3 paths and 5 paths as odd paths in the embodiment.
The embodiment provides a millimeter wave odd-number path high-efficiency power synthesis network structure, which comprises:
the millimeter wave transmitter signal transmitting unit is used for transmitting an initial transmitting signal, and the initial transmitting signal at least comprises a signal initial bandwidth and an initial frequency; the millimeter wave transmitter signal transmitting unit may be a commonly used signal transmitting unit, and its main function is to transmit an initial transmitting signal, for subsequently establishing a first mapping relationship, a second mapping relationship, generating a signal transmission path, etc., where in this embodiment, bandwidth and frequency in the initial transmitting signal are required, and generally, for a millimeter wave transmitter, the bandwidth and frequency all need to meet the current device type requirement of the millimeter wave.
The power output path number acquisition unit is used for acquiring the power output path number, wherein the power output path number is an odd number and is at least three paths; referring to fig. 1 and fig. 2, the topology structure diagrams of the millimeter wave odd-number-path high-efficiency power synthesis network are shown when the number of power output paths is 3 paths and 5 paths respectively.
The first mapping unit is used for establishing a first mapping relation of initial transmitting signal distribution times according to the initial bandwidth, the initial frequency and the power output path number of the signals; referring to fig. 1, when the number of power output paths is 3, the number of distribution times is two, the first distribution proportion is 1:1, the second distribution proportion is 2:1, and finally the distribution proportion of each path of output signals is the same, so that the frequency and the phase of each path of output signals are consistent, referring to fig. 2, when the number of power output paths is 5, the number of distribution times is three, the first distribution proportion is 1:1, the second distribution proportion is 3:2, and the third distribution proportion is 2:1, 1:1, and 1:2, and finally the distribution proportion of each path of output signals is the same, so that the amplitude and the phase of each path of output signals are consistent.
The second mapping unit is used for establishing a second mapping relation of the distribution proportion of the initial transmitting signal during each distribution according to the initial bandwidth, the initial frequency and the power output path number of the signal; referring to fig. 1 and 2, each time of distribution, the corresponding distribution proportion can make the amplitude and phase of each output signal consistent.
Through the first mapping relation and the second mapping relation, after the initial transmission signals are transmitted and the power output path number is obtained, the corresponding distribution times of the initial transmission signals and the distribution proportion during each distribution are automatically calculated according to the power output path number, so that the amplitude and the phase of each path of output signals are consistent.
The signal transmission path generation unit is used for calculating a signal transmission path of the initial transmission signal which is transmitted to the signal output unit after signal distribution based on the power output path number, the first mapping relation and the second mapping relation;
the purpose of calculating the signal transmission path is to obtain the shortest transmission path from the initial transmitting signal to the corresponding output port after the initial transmitting signal is distributed according to the distribution times and the distribution proportion of each distribution time, and after the initial transmitting signal is distributed by the signal, the distribution times and the distribution proportion of each distribution time can be automatically calculated based on the power output path number.
A signal loss calculation unit for calculating a signal loss of each signal transmission path; because the number of the power output paths is odd, and at least 3 paths are adopted in the implementation, when the initial transmitting signal is transmitted, signal loss is necessarily existed, and different signal transmission paths exist, the signal loss is possibly different due to the length of the signal transmission paths and the difference of the number of the intermediate nodes, and in order to ensure that the output signals of the odd paths with consistent output amplitude and phase of the corresponding output ports, the signal loss of each signal transmission path needs to be accurately calculated.
The signal output unit is used for controlling the corresponding output port to output odd-number-path output signals with consistent amplitude and phase based on the signal loss of each signal transmission path; even if the signal transmission distances of the signal transmission paths are the same and the number of intermediate nodes is the same, the amplitude and/or the phase of each signal reaching the signal transmission unit may be different.
It should be added that, since the millimeter wave transmitters can transmit different types of signals, but the bandwidth and frequency of the signals need to be predefined, for each millimeter wave transmitter, an initial transmission signal type judging unit should be further included, for judging whether the type of the initial transmission signal is the type of the signal that the current millimeter wave transmitter is allowed to transmit after the initial transmission signal is acquired, if yes, controlling the millimeter wave transmitter signal transmitting unit to transmit the initial transmission signal, and controlling the power output path number acquiring unit to acquire the power output path number, otherwise notifying the current millimeter wave transmitter.
Generally, in order to adapt to the use requirement of application scenario, millimeter wave transmitters with different output port numbers can be developed according to the number of power output paths, however, for the scenario that the working distance is shorter and the anti-interference capability is not particularly strict, the separately developing millimeter waves with corresponding output port numbers obviously requires a larger hardware development cost, in this case, the existing 2 can be used n The millimeter wave transmitters with the order output paths only need to ensure that the number of output ports of the millimeter wave transmitters is larger than the number of power output paths.
In practical application, when the first mapping relationship is established, the method may include:
calculating the distribution times of initial transmitting signals according to the amplitude, the phase and the power requirements of the output signals of the odd-numbered output signals output by the output ports;
taking the initial bandwidth, the initial frequency and the number of power output paths of the signal as a first data set, and taking the initial transmission signal distribution times as a second data set;
a first mapping relationship between the first data set and the second data set is established.
When establishing the second mapping relationship, the method may include:
calculating the distribution proportion of the initial transmitting signal during each distribution according to the initial power and the distribution times of the initial transmitting signal;
taking the initial bandwidth, the initial frequency and the number of power output paths of the signal as a first data set, and taking the initial transmitting signal distribution times as a third data set;
a second mapping relationship between the first data set and the third data set is established.
The setting of the two mapping relations is mainly used for rapidly calculating the distribution times of the initial transmitting signals and the distribution proportion during each distribution, and reducing the overall time delay of the system.
In the calculating of the signal transmission path, it may include:
acquiring an initial transmitting signal and a corresponding output port, wherein each output port corresponds to a unique port identifier;
taking a millimeter wave transmitter signal transmitting unit as a starting node of a signal transmission path;
calculating intermediate nodes based on the distribution times of the initial transmission signals, wherein each intermediate node distributes a signal once, and the number of the intermediate nodes is equal to the distribution times;
calculating the frequency of signals flowing through the intermediate nodes, dividing the intermediate nodes with the signal frequency difference within a first threshold range into the same group of intermediate nodes, and enabling the signals flowing through the same group of intermediate nodes to have the same frequency;
screening out the corresponding group of intermediate nodes of the minimum signal frequency flowing through the intermediate nodes, connecting the initial node with the intermediate nodes in each group, and respectively calculating the shortest transmission path;
and connecting the corresponding group of intermediate nodes with the minimum signal frequency flowing through the intermediate nodes to the corresponding output ports to form signal transmission paths from the initial node to the shortest transmission path and then to the corresponding output ports.
The number of intermediate nodes is related to the number of allocations, and for each allocation of signals, the purpose is to ensure that the frequency of signals flowing through the intermediate nodes at the same frequency level is not greatly different, so that a threshold value needs to be set to make the frequency of signals at the same group of intermediate nodes the same, and reduce the signal gap when the initial transmission signal reaches the signal transmission unit.
Similarly, in this embodiment, when calculating the signal loss of each signal transmission path, the signal loss calculating unit includes:
calculating and summing the signal loss of each intermediate node in the shortest transmission path, judging whether the difference value of the sum is in a second threshold range, if so, averaging the signal frequencies of the corresponding group of intermediate nodes of the minimum signal frequency flowing through the intermediate nodes, and transmitting the signal frequencies to the corresponding output ports;
otherwise, setting a first time delay, recalculating the shortest transmission path, calculating the signal loss of each intermediate node in the shortest transmission path, summing, judging whether the difference value of the sums is in a second threshold range again, if so, averaging the signal frequencies of the intermediate nodes in the corresponding group of the minimum signal frequencies flowing through the intermediate nodes, and transmitting to the corresponding output ports after the first time delay.
Here, the purpose of averaging the signal frequencies of the corresponding group of intermediate nodes flowing through the minimum signal frequency of the intermediate nodes is also to ensure that the loss and the system error of each signal transmission path are minimum, and the system error when the signal is transmitted to the signal transmission unit is avoided to the greatest extent.
In addition, the first time delay is set to ensure that an accurate shortest transmission path can be calculated, and the calculated shortest transmission path is not affected by signal loss of the intermediate node.
In the practical application process, if the number of times of recalculating the shortest transmission path reaches the specified number of times, the millimeter wave transmitter is informed to perform fault detection and maintenance on each intermediate node, after the maintenance is finished, the shortest transmission path is recalculated, and the situation is generally that the hardware configuration of the millimeter wave transmitter is problematic, and the millimeter wave transmitter must be manually overhauled, if the shortest transmission path is not overhauled or is not recalculated, the signal system error transmitted to each output port at the moment can be very large, the control of the signal loss by the signal transmission unit can be greatly emphasized, and the transmission delay of the odd-path output signals with consistent output amplitude and phase of the corresponding output ports can be greatly increased.
Generally speaking, the first threshold corresponds to a signal frequency difference of different intermediate nodes in different groups, which is often set relatively large, and the second threshold is calculated according to the calculated signal loss of each intermediate node in the shortest transmission path, and then the sum is determined, where the probability of a large difference between the shortest transmission paths is small, and the difference is generally not large, so the second threshold is significantly smaller than the first threshold in this embodiment.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. Millimeter wave odd-number-path high-efficiency power synthesis network structure, which is characterized by comprising:
the millimeter wave transmitter signal transmitting unit is used for transmitting an initial transmitting signal, and the initial transmitting signal at least comprises a signal initial bandwidth and an initial frequency;
the power output path number acquisition unit is used for acquiring the power output path number, wherein the power output path number is an odd number and is at least three paths;
the first mapping unit is used for establishing a first mapping relation of initial transmitting signal distribution times according to the initial bandwidth, the initial frequency and the power output path number of the signals;
the second mapping unit is used for establishing a second mapping relation of the distribution proportion of the initial transmitting signal during each distribution according to the initial bandwidth, the initial frequency and the power output path number of the signal;
the signal transmission path generation unit is used for calculating a signal transmission path of the initial transmission signal which is transmitted to the signal output unit after signal distribution based on the power output path number, the first mapping relation and the second mapping relation;
a signal loss calculation unit for calculating a signal loss of each signal transmission path;
and the signal output unit is used for controlling the corresponding output port to output odd-number-path output signals with consistent amplitude and phase based on the signal loss of each signal transmission path.
2. The odd-numbered millimeter wave efficient power combining network structure according to claim 1, further comprising an initial transmission signal type judging unit configured to judge whether the type of the initial transmission signal is a type of a signal allowed to be transmitted by a current millimeter wave transmitter after the initial transmission signal is acquired, if so, control the millimeter wave transmitter signal transmitting unit to transmit the initial transmission signal, and control the power output path number acquiring unit to acquire the power output path number, otherwise, notify the current millimeter wave transmitter.
3. The millimeter wave odd-circuit efficient power combining network structure according to claim 1, wherein the number of power output circuits is less than or equal to the number of output ports.
4. The millimeter wave odd-path efficient power combining network structure according to claim 1, wherein when establishing the first mapping relationship, comprising:
calculating the distribution times of initial transmitting signals according to the amplitude, the phase and the power requirements of the output signals of the odd-numbered output signals output by the output ports;
taking the initial bandwidth, the initial frequency and the number of power output paths of the signal as a first data set, and taking the initial transmission signal distribution times as a second data set;
a first mapping relationship between the first data set and the second data set is established.
5. The millimeter wave odd-path efficient power combining network structure according to claim 4, wherein when establishing the second mapping relationship, comprising:
calculating the distribution proportion of the initial transmitting signal during each distribution according to the initial power and the distribution times of the initial transmitting signal;
taking the initial bandwidth, the initial frequency and the number of power output paths of the signal as a first data set, and taking the initial transmitting signal distribution times as a third data set;
a second mapping relationship between the first data set and the third data set is established.
6. The millimeter wave odd-path efficient power combining network structure according to claim 1, characterized by comprising, when calculating the signal transmission path:
acquiring an initial transmitting signal and a corresponding output port, wherein each output port corresponds to a unique port identifier;
taking a millimeter wave transmitter signal transmitting unit as a starting node of a signal transmission path;
calculating intermediate nodes based on the distribution times of the initial transmission signals, wherein each intermediate node distributes a signal once, and the number of the intermediate nodes is equal to the distribution times;
calculating the frequency of signals flowing through the intermediate nodes, dividing the intermediate nodes with the signal frequency difference within a first threshold range into the same group of intermediate nodes, and enabling the signals flowing through the same group of intermediate nodes to have the same frequency;
screening out the corresponding group of intermediate nodes of the minimum signal frequency flowing through the intermediate nodes, connecting the initial node with the intermediate nodes in each group, and respectively calculating the shortest transmission path;
and connecting the corresponding group of intermediate nodes with the minimum signal frequency flowing through the intermediate nodes to the corresponding output ports to form signal transmission paths from the initial node to the shortest transmission path and then to the corresponding output ports.
7. The millimeter wave odd-numbered-circuit efficient power combining network structure according to claim 6, wherein the signal loss calculation unit, when calculating the signal loss of each signal transmission path, comprises:
calculating and summing the signal loss of each intermediate node in the shortest transmission path, judging whether the difference value of the sum is in a second threshold range, if so, averaging the signal frequencies of the corresponding group of intermediate nodes of the minimum signal frequency flowing through the intermediate nodes, and transmitting the signal frequencies to the corresponding output ports;
otherwise, setting a first time delay, recalculating the shortest transmission path, calculating the signal loss of each intermediate node in the shortest transmission path, summing, judging whether the difference value of the sums is in a second threshold range again, if so, averaging the signal frequencies of the intermediate nodes in the corresponding group of the minimum signal frequencies flowing through the intermediate nodes, and transmitting to the corresponding output ports after the first time delay.
8. The millimeter wave odd-path efficient power combining network structure according to claim 7, wherein if the number of times of recalculating the shortest transmission path reaches a prescribed number of times, the millimeter wave transmitter is notified to perform fault detection and maintenance on each intermediate node, and after the maintenance is completed, the shortest transmission path is recalculated.
9. The millimeter wave odd-circuit efficient power combining network structure of claim 7, wherein the second threshold is less than the first threshold.
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