Radio frequency power coupler

Abstract

The utility model discloses a radio frequency power coupler in the technical field of power couplers. The radio frequency power coupler comprises a probe assembly which comprises a plurality of paths of forward power probes and reflection power probes, and the detection frequency ranges of the forward power probes and the reflection power probes are different; the frequency coupling unit is used for performing frequency sampling on the power transmission line of the machine to be tested; the logic board is electrically connected with the frequency coupling unit and the probe assembly, and the logic board is used for obtaining the frequency data collected by the frequency coupling unit and calling a forward power probe and a reflection power probe in the probe assembly according to the frequency data; and the power module is used for supplying power to the logic board. According to the radio frequency power coupler, the detection frequency coverage range is expanded in a mode of arranging a plurality of groups of probes, then frequency sampling is performed on the power transmission line, and the probes in different detection frequency ranges are adaptively called accordingly, so that the problem that the coupler needs to be frequently replaced when a machine with high and low frequencies is tested is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of power couplers, in particular to a radio frequency power coupler. Background Art

[0002] Power couplers are designed for high-precision power measurement, meeting the measurement needs of both laboratory-level and industrial applications. They are widely used in various RF application scenarios, providing accurate and real-time power detection services.

[0003] RF power couplers are primarily used to measure and monitor RF power. Existing RF power couplers have a narrow frequency range, requiring frequent coupler replacement when testing high- and low-frequency equipment. This also results in excessive equipment being connected during testing, making the machine cluttered. Utility Model Content

[0004] The present application provides a radio frequency power coupler and improves the frequency coverage of the power coupler, thereby solving the problem of frequent replacement of couplers when testing high and low frequency machines in the prior art.

[0005] An embodiment of the present application provides a radio frequency power coupler, comprising:

[0006] A probe assembly includes multiple forward power probes and reflected power probes, each forward power probe and each reflected power probe having a different detection frequency range;

[0007] A frequency coupling unit, used to perform frequency sampling on the power transmission line of the machine under test;

[0008] A logic board is electrically connected to the frequency coupling unit and the probe assembly, and is used to obtain frequency data collected by the frequency coupling unit and call the forward power probe and the reflected power probe in the probe assembly accordingly;

[0009] Power module, used to supply power to the logic board.

[0010] The beneficial effect of the above embodiment is that: the RF power coupler expands the detection frequency coverage range by setting multiple groups of probes, and then performs frequency sampling on the power transmission line, and adaptively calls probes with different detection frequency ranges accordingly, thereby avoiding the problem of frequent replacement of couplers when testing high and low frequency machines, reducing the number of detection steps, and improving detection efficiency.

[0011] Based on the above embodiments, the present application can be further improved as follows:

[0012] In one embodiment of the present application, there are four forward power probes and four reflected power probes, and the detection frequency ranges are 100k-1MHZ, 1MHZ-20MHZ, 20MHZ-50MHZ, and 50MHZ-100MHZ respectively.

[0013] In one embodiment of the present application, the power module includes a voltage stabilization circuit and a protection circuit to provide a stable voltage to the logic board and ensure its safety. The internal protection circuit consists of a voltage regulator diode, a fuse, and a varistor. The voltage stabilization circuit is a 7805 DC voltage regulator circuit with filter capacitors connected to both the input and output terminals.

[0014] In one embodiment of the present application, the RF power coupler further includes a storage unit electrically connected to the logic board. The storage unit can access internally stored data via a USB port. When the machine is operating for extended periods and requires access to the RF power coupler to monitor its stability, the storage unit is reserved to monitor historical performance curves and identify faults.

[0015] In one embodiment of the present application, the RF power coupler further includes a display unit comprising a D / A module and a display screen, the D / A module being electrically connected to the logic board and the display screen, respectively. The analog signal output by the logic board is converted to a digital signal via the D / A converter and then displayed on the display screen, facilitating the observation of data such as forward power, reflected power, frequency, and standing wave ratio.

[0016] In one embodiment of the present application, the logic board has a user port, which includes an RS232 serial port and a pre-set toggle button. The RS232 serial port allows the user to interact with the logic board and access stored data, while the toggle button switches between displaying forward power, reflected power, frequency, and standing wave ratio data.

[0017] In one embodiment of the present application, the logic board is provided with a debug port, which is provided with an RS232 serial port and an ETHENET port / network port. After long-term use, the power coupler may experience power distortion. Users can use this port to diagnose, debug, and upgrade programs on the logic board, as well as quickly calibrate the probe assembly.

[0018] In one embodiment of the present application, the logic board model is MC68HC711D3CFNE2.

[0019] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0020] 1. This RF power coupler expands the detection frequency coverage by setting up multiple sets of probes, then simultaneously samples the frequency of the power transmission line and adaptively calls probes with different detection frequency ranges. This avoids the problem of frequent coupler replacement when testing high and low frequency machines, reduces the number of detection steps, and improves detection efficiency.

[0021] 2. The analog signal output by the RF power coupler logic board is converted into a digital signal through D / A and then displayed on the screen, making it easy to observe the forward power, reflected power, frequency, standing wave ratio and other data.

[0022] 3. This RF power coupler has a reserved debugging port, which allows users to diagnose, debug, and upgrade the program in the logic board and quickly calibrate the probe assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0024] Figure 1 This is a structural diagram of a radio frequency power coupler in an embodiment of the present application. DETAILED DESCRIPTION

[0025] The present invention will be further explained below in conjunction with specific implementation methods. It should be understood that these implementation methods are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, modifications of various equivalent forms of the present invention made by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0027] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0028] In the description of the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and integrate different embodiments or examples described in the present invention, as well as features of different embodiments or examples, unless they are mutually inconsistent.

[0029] The embodiments of the present application provide a radio frequency power coupler and improve the frequency coverage of the power coupler, thereby solving the problem of frequent replacement of couplers when testing high and low frequency machines in the prior art.

[0030] The technical solution in the embodiments of the present application is to solve the above problems, and the overall idea is as follows:

[0031] Example:

[0032] like Figure 1 As shown, a radio frequency power coupler includes: a probe assembly, a frequency coupling unit, a logic board, a power module, a storage unit and a display unit. Specifically:

[0033] The probe assembly includes multiple Meas forward power probes and reflected power probes, and the detection frequency range of each forward power probe and reflected power probe is different; in this embodiment, there are four forward power probes and four reflected power probes respectively, and the detection frequency ranges are 100k-1MHZ, 1MHZ-20MHZ, 20MHZ-50MHZ, and 50MHZ-100MHZ respectively.

[0034] The frequency coupling unit is used to sample the frequency of the power transmission line of the machine under test and feed it back to the logic board.

[0035] The logic board is electrically connected to the frequency coupling unit and the probe assembly respectively. The logic board is used to obtain the frequency data collected by the frequency coupling unit and call the forward power probe and the reflected power probe in the probe assembly accordingly. In this embodiment, the logic board model is MC68HC711D3CFNE2.

[0036] The power module includes a voltage regulator circuit and a protection circuit, which supply a stable 5V voltage to the logic board and protect it in the event of a voltage regulator failure. The protection circuit consists of a voltage regulator diode, a fuse, and a varistor. The voltage regulator circuit uses a 7805 to form a DC voltage regulator circuit, with filter capacitors connected to both the input and output terminals.

[0037] The storage unit is electrically connected to the logic board and can access internally stored data via the USB port. When the RF power coupler is connected in series with the load and the machine's stability is monitored, the user can observe the historical curve of the stored data in the storage unit to identify faults.

[0038] The display unit consists of a D / A module and a display screen. The D / A module is electrically connected to the logic board and the display screen, respectively. The analog signal output by the logic board is converted to a digital signal through the D / A converter and then displayed on the display screen, allowing for convenient observation of forward power, reflected power, frequency, and standing wave ratio.

[0039] Furthermore, the logic board has a user port, which is equipped with an RS232 serial port and a preset switch button. The RS232 serial port in the user port is used for users to interact with the logic board and read stored data. The switch button in the user port is used to switch the display of forward power, reflected power, frequency, standing wave ratio and other data.

[0040] Furthermore, the logic board has a debug port, which includes an RS232 serial port and an ETHENET port / network port. Users can use this port to diagnose, debug, and upgrade programs on the logic board, as well as calibrate the probe assembly.

[0041] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0042] 1. This RF power coupler expands the detection frequency coverage by setting up multiple sets of probes, then simultaneously samples the frequency of the power transmission line and adaptively calls probes with different detection frequency ranges. This avoids the problem of frequent coupler replacement when testing high and low frequency machines, reduces the number of detection steps, and improves detection efficiency.

[0043] 2. The analog signal output by the RF power coupler logic board is converted into a digital signal through D / A and then displayed on the screen, making it easy to observe the forward power, reflected power, frequency, standing wave ratio and other data.

[0044] 3. This RF power coupler has a reserved user port. The RS232 serial port in the user port is used for users to interact with the logic board and read stored data. The switch button in the user port is used to switch the display of forward power, reflected power, frequency, standing wave ratio and other data.

[0045] 4. This RF power coupler has a reserved debugging port, which allows users to diagnose, debug, and upgrade the program in the logic board and quickly calibrate the probe assembly.

[0046] 5. This RF power coupler has a reserved storage unit, users can view the stored data and observe the historical curve to determine the fault.

[0047] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A radio frequency power coupler, characterized in that: include: The probe assembly includes a plurality of forward power probes and reflected power probes, wherein the detection frequency range of each forward power probe and reflected power probe is different; A frequency coupling unit, used to perform frequency sampling on the power transmission line of the machine under test; a logic board, electrically connected to the frequency coupling unit and the probe assembly, respectively, and configured to obtain frequency data collected by the frequency coupling unit and to call the forward power probe and the reflected power probe in the probe assembly accordingly; A power module is used to supply power to the logic board.

2. The radio frequency power coupler according to claim 1, wherein: The forward power probe and the reflected power probe are provided in four channels, and the detection frequency ranges are 100k-1MHZ, 1MHZ-20MHZ, 20MHZ-50MHZ, and 50MHZ-100MHZ respectively.

3. The RF power coupler according to claim 1, wherein: The power supply module includes a voltage stabilizing circuit and a protection circuit, which are used to supply a stable voltage to the logic board and ensure the safety of the logic board.

4. The radio frequency power coupler according to claim 1, wherein: The RF power coupler further includes a storage unit electrically connected to the logic board.

5. The radio frequency power coupler according to claim 4, wherein: The RF power coupler further includes a display unit, which includes a D / A module and a display screen. The D / A module is electrically connected to the logic board and the display screen respectively.

6. The radio frequency power coupler according to claim 5, wherein: The logic board is provided with a user port, the user port is provided with an RS232 serial port, and a switch button is preset.

7. The radio frequency power coupler according to claim 1, wherein: The logic board is provided with a debugging port, and the debugging port is provided with an RS232 serial port and an ETHENET port / network port.

8. The radio frequency power coupler according to claim 1, wherein: The logic board model is MC68HC711D3CFNE2.

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