CN110635697A - A Radio Frequency Signal Rectifier with Automatic Input Port Standing Wave Adjustment Capability - Google Patents
A Radio Frequency Signal Rectifier with Automatic Input Port Standing Wave Adjustment Capability Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/02—Conversion of AC power input into DC power output without possibility of reversal
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- H02M7/12—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
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Abstract
该发明公开了一种具有自动输入端口驻波调整能力的射频信号整流器，属于微波整流技术领域，具体为设计一种具有自动调整输入端口驻波能力的整流器，用以提高整流器的整流效率，以满足整流器在复杂环境要求下的应用。该整流器能够在整流器的输入阻抗发生变化时，对回波进行收集分析，然后通过一个可调匹配模块，对整流器的输入阻抗进行调节，从而使电路再次达到匹配，来解决回波损耗的问题，从而提高了整流器的整流效率。
The invention discloses a radio frequency signal rectifier with automatic input port standing wave adjustment capability, which belongs to the field of microwave rectification technology. Specifically, a rectifier with automatic input port standing wave adjustment capability is designed to improve the rectification efficiency of the rectifier. Meet the application of rectifiers in complex environments. The rectifier can collect and analyze the echo when the input impedance of the rectifier changes, and then adjust the input impedance of the rectifier through an adjustable matching module, so that the circuit can achieve matching again to solve the problem of return loss. Therefore, the rectification efficiency of the rectifier is improved.
Description
技术领域technical field
本发明属于微波整流技术领域，具体为设计一种具有自动调整输入端口驻波能力的整流器，用以提高整流器的整流效率，以满足整流器在复杂环境要求下的应用。The invention belongs to the technical field of microwave rectification, and specifically designs a rectifier with the ability to automatically adjust the standing wave at an input port, so as to improve the rectification efficiency of the rectifier and satisfy the application of the rectifier in complex environments.
背景技术Background technique
整流器的输出端通常连接着变阻抗的负载，如DC-DC变换器、功率管理单元和超级电容器等，它们在不同的工作条件下，阻抗会发生变化，这就意味着整流器的输入阻抗会发生相应的改变，从而导致整流器输入端匹配电路的失配，最终造成整流器的转换效率降低，性能下降的结果。面对复杂的电磁环境，单输入功率点或窄输入功率范围(Input PowerRange，IPR)的整流器已不再满足现实的需求，而宽IPR整流器能在较宽输入功率范围内保证较好的性能，适应性较强，但宽IPR匹配电路的设计相对来讲有一定的难度。因此，对具有自动输入端口驻波调整能力的射频信号整流器的研究设计具有十分现实的意义。The output of the rectifier is usually connected to a variable impedance load, such as DC-DC converter, power management unit and super capacitor, etc., and their impedance will change under different working conditions, which means that the input impedance of the rectifier will change Corresponding changes will result in mismatching of the matching circuit at the input end of the rectifier, which will eventually result in a reduction in the conversion efficiency and performance of the rectifier. Facing the complex electromagnetic environment, rectifiers with single input power point or narrow input power range (Input PowerRange, IPR) no longer meet the actual needs, and wide IPR rectifiers can guarantee better performance in a wide input power range, The adaptability is strong, but the design of the wide IPR matching circuit is relatively difficult. Therefore, the research and design of the RF signal rectifier with automatic input port standing wave adjustment capability has very practical significance.
针对现有整流器IPR不够大的情况，已经有人提出相应的解决办法。有论文中设计了一种高动态输入微波整流电路，如图1所示。该论文分别设计了一种大功率微波整流电路和一种小功率微波整流电路，并用环形器将两种电路的输入端相连接。利用环形器的单向传输原理，当输入功率变化时，由于电路不再匹配，第一级大功率整流电路会产生反射回波，回波功率经由环形器进入第二级小功率整流电路，经整流后输出直流功率，并与第一级电路的输出和功率相合成。但上述高动态输入微波整流电路结构较为复杂，需要分别设计一种大功率微波整流电路和一种小功率微波整流电路，共计两个整流单元，可能会使得电路面积过大。Aiming at the situation that the IPR of the existing rectifier is not large enough, some people have proposed a corresponding solution. A high dynamic input microwave rectifier circuit is designed in some papers, as shown in Figure 1. In this thesis, a high-power microwave rectifier circuit and a low-power microwave rectifier circuit are respectively designed, and the input terminals of the two circuits are connected by a circulator. Utilizing the one-way transmission principle of the circulator, when the input power changes, the first-stage high-power rectification circuit will generate reflected echoes due to the circuit no longer matching, and the echo power enters the second-stage low-power rectification circuit through the circulator. The DC power is output after rectification and combined with the output and power of the first stage circuit. However, the structure of the high dynamic input microwave rectifier circuit is relatively complicated, and it is necessary to design a high-power microwave rectifier circuit and a low-power microwave rectifier circuit respectively. There are two rectifier units in total, which may make the circuit area too large.
发明内容Contents of the invention
为解决上述整流器输入功率动态范围过窄的问题，本发明提出了一种具有自动输入端口驻波调整能力的射频信号整流器。该整流器能够在整流器的输入阻抗发生变化时，对回波进行收集分析，然后通过一个可调匹配模块，对整流器的输入阻抗进行调节，从而使电路再次达到匹配，以提高整流器的效率。In order to solve the problem that the dynamic range of the input power of the rectifier is too narrow, the present invention proposes a radio frequency signal rectifier with automatic input port standing wave adjustment capability. The rectifier can collect and analyze the echo when the input impedance of the rectifier changes, and then adjust the input impedance of the rectifier through an adjustable matching module, so that the circuit can be matched again to improve the efficiency of the rectifier.
本发明所提出的整流器的技术方案为一种具有自动输入端口驻波调整能力的射频信号整流器，该整流器包括：驻波比计算模块、控制单元模块、匹配可调模块、传统整流器模块，其中驻波比计算模块包括入射波反射波分离模块和计算电路，所述驻波比计算模块位于在输入端口，作用是收集不匹配时电路的入射波与反射波，并通过计算电路计算驻波比；所述驻波比计算模块中的计算电路与控制单元模块相连，所述控制单元模块后连接阻抗可调模块，作用是接受驻波比计算模块的计算结果，并据此产生阻抗可调模块的控制信号；所述阻抗可调模块同时位于驻波比计算中的入射波反射波分离模块与传统整流器模块之间作用是代替传统整流器的固定的输入匹配电路，并且能够对整流器的输入阻抗进行调节。The technical solution of the rectifier proposed by the present invention is a radio frequency signal rectifier with automatic input port standing wave adjustment capability. The rectifier includes: a standing wave ratio calculation module, a control unit module, a matching adjustable module, and a traditional rectifier module. The wave ratio calculation module includes an incident wave reflection wave separation module and a calculation circuit. The standing wave ratio calculation module is located at the input port, and its function is to collect the incident wave and the reflected wave of the circuit when they do not match, and calculate the standing wave ratio through the calculation circuit; The calculation circuit in the standing wave ratio calculation module is connected to the control unit module, and the impedance adjustable module is connected behind the control unit module, and the function is to accept the calculation result of the standing wave ratio calculation module and generate the impedance of the impedance adjustable module accordingly. Control signal; the adjustable impedance module is located between the incident wave reflection wave separation module and the traditional rectifier module in the calculation of the standing wave ratio, and the function is to replace the fixed input matching circuit of the traditional rectifier, and can adjust the input impedance of the rectifier .
进一步的，所述入射波反射波分离模块为定向耦合器，所述阻抗可调模块为并联的可控开关二极管与电容，每个电容串联一个开关二极管；通过控制开关二极管的通断数目来控制接入电路的并联电容的数目，从而对整流电路的输入阻抗进行调节，实现对输入端口驻波比的调节。Further, the incident wave reflected wave separation module is a directional coupler, the impedance adjustable module is a parallel connection of controllable switching diodes and capacitors, and each capacitor is connected in series with a switching diode; it is controlled by controlling the on-off number of switching diodes The number of parallel capacitors connected to the circuit can adjust the input impedance of the rectifier circuit and realize the adjustment of the standing wave ratio of the input port.
本发明提出的具有自动调整输入端口驻波比的射频信号整流器，能够通过对输入端口驻波比的监测与调节，来解决回波损耗的问题，从而提高了整流器的整流效率。The radio frequency signal rectifier with automatic adjustment of the standing wave ratio of the input port proposed by the present invention can solve the problem of return loss by monitoring and adjusting the standing wave ratio of the input port, thereby improving the rectification efficiency of the rectifier.
附图说明Description of drawings
图1为背景技术中提出的一种高动态输入微波整流电路。FIG. 1 is a high dynamic input microwave rectifier circuit proposed in the background art.
图2为本发明具有自动输入端口驻波调整能力的射频信号整流器的原理框图。FIG. 2 is a functional block diagram of a radio frequency signal rectifier with automatic input port standing wave adjustment capability according to the present invention.
图3为本发明的一种具体实现方式。Fig. 3 is a specific implementation manner of the present invention.
具体实施方式Detailed ways
为了使得本发明实施目的、技术方案更加明确化，在下面将结合发明中一种具体能够实现的结构的附图对本发明进行详细阐述。图3是本发明的一种具体实施方式。In order to clarify the implementation purpose and technical solution of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings of a specific structure that can be realized in the present invention. Fig. 3 is a specific embodiment of the present invention.
如图3所示，该发明主要由四个模块组成：模块1：驻波比计算模块、模块2：控制单元模块、模块3：匹配可调模块以及模块4传统整流器模块。As shown in Figure 3, the invention is mainly composed of four modules: module 1: standing wave ratio calculation module, module 2: control unit module, module 3: matching adjustable module and module 4 traditional rectifier module.
驻波比计算模块：可以使用基于定向耦合器的反射计实现，包括一个定向耦合器和一个计算电路，主要利用定向耦合器的方向性与隔离度，对入射信号和反射信号进行采样收集然后将入射波和反射波的强度E+、E-输入到计算电路，计算电路根据E+和E-实现驻波比的计算，主要依据以下公式：驻波比
控制单元模块模块：主要是根据驻波比的计算结果产生一个控制信号，以此信号控制下一个模块：阻抗可调模块中开关通断的数目；Control unit module module: mainly generates a control signal according to the calculation result of the standing wave ratio, and uses this signal to control the next module: the number of on-off switches in the impedance adjustable module;
阻抗可调模块：可以使用并联的可控开关与二极管实现，主要通过控制该模块中开关通断的数目来控制接入电路的并联开路电容的数目，从而对整流电路的输入阻抗进行调节，最终实现对输入端口驻波比的调节；Impedance adjustable module: It can be realized by using parallel controllable switches and diodes. The number of parallel open-circuit capacitors connected to the circuit is mainly controlled by controlling the number of on-off switches in the module, so as to adjust the input impedance of the rectifier circuit, and finally Realize the adjustment of the standing wave ratio of the input port;
传统整流器模块：该模块为传统整流器结构，主要包含整流晶体管、栅极偏置以及负载电阻等。Traditional rectifier module: This module is a traditional rectifier structure, mainly including rectifier transistors, gate bias and load resistors.
整流器效率下降的主要原因在于电路工作状态发生变化时，输入阻抗也会发生变化，导致电路不再匹配而产生回波，这部分回波没有被整流而发生回波损耗。而本发明提出的具有自动调整输入端口驻波比的射频信号整流器，能够通过对输入端口驻波比的监测与调节，来解决回波损耗的问题，从而提高了整流器的整流效率。The main reason for the decline in rectifier efficiency is that when the working state of the circuit changes, the input impedance will also change, causing the circuit to no longer match and generate echoes. This part of the echo is not rectified and returns loss occurs. However, the radio frequency signal rectifier with automatic adjustment of the standing wave ratio of the input port proposed by the present invention can solve the problem of return loss by monitoring and adjusting the standing wave ratio of the input port, thereby improving the rectification efficiency of the rectifier.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20250364837A1 (en) * | 2024-05-21 | 2025-11-27 | Dell Products L.P. | Self-powered autonomous reconfigurable intelligent surfaces using wide radio frequency power range harvesting circuit |
| US12531601B2 (en) | 2024-06-05 | 2026-01-20 | Dell Products L.P. | Autonomous reconfigurable intelligent surface using antennas and power-dependent switchable rectification mechanism |
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- 2019-07-16 CN CN201910640547.0A patent/CN110635697A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20250364837A1 (en) * | 2024-05-21 | 2025-11-27 | Dell Products L.P. | Self-powered autonomous reconfigurable intelligent surfaces using wide radio frequency power range harvesting circuit |
| US12506362B2 (en) * | 2024-05-21 | 2025-12-23 | Dell Products L.P. | Self-powered autonomous reconfigurable intelligent surfaces using wide radio frequency power range harvesting circuit |
| US12531601B2 (en) | 2024-06-05 | 2026-01-20 | Dell Products L.P. | Autonomous reconfigurable intelligent surface using antennas and power-dependent switchable rectification mechanism |
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Application publication date: 20191231 |