Active test probe
By integrating a power detector and a signal generator into a passive test probe, the problems of high cost and large equipment size of traditional passive probe testing are solved, and efficient and compact transmit and receive power testing is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GENERAL TEST SYST
- Filing Date
- 2025-05-15
- Publication Date
- 2026-06-09
AI Technical Summary
Traditional passive test probes are costly and require large hardware devices when testing the transmit and receive power of the device under test.
By adding a power detector and/or signal generator to a passive test probe, the transceiver power of the device under test can be tested, and the test probe is integrated with the power detector and/or signal generator.
It reduces testing costs and significantly shrinks equipment size, enabling transmit and receive performance testing without the use of test instruments.
Smart Images
Figure CN224343209U_ABST
Abstract
Description
[0001] Cross-references to related applications
[0002] This application claims priority to Chinese Patent Application No. 202411513399.3, filed on October 28, 2024, entitled "Multi-probe testing system and method" and Chinese Patent Application No. 202411513401.7, filed on October 28, 2024, entitled "Near-field coupled test probe assembly, test system and test method", the entire contents of which are incorporated herein by reference. Technical Field
[0003] This utility model relates to the field of communication technology, and in particular to an active test probe. Background Technology
[0004] Traditional test probes typically use passive probes. To perform power testing on the device under test, it is necessary to connect to a test instrument, while the probe itself is only used for transmitting and receiving signals.
[0005] In summary, the passive test probes described above have technical problems such as high testing costs and large hardware size when testing the transmit and receive power of the device under test. Utility Model Content
[0006] In view of this, the purpose of this utility model is to provide an active test probe to alleviate the technical problems of high testing cost and large hardware size when existing passive test probes test the transmit and receive power of the device under test.
[0007] In a first aspect, this utility model provides an active test probe, comprising: a test probe, a power detector integrated with the test probe, and / or a signal generator integrated with the test probe;
[0008] The test probe is used to receive a first test signal emitted by the device under test, or to emit a second test signal to the device under test;
[0009] The power detector is used to detect the power of the first test signal emitted by the device under test received by the test probe, so as to determine the emission power of the device under test based on the power detection result;
[0010] The signal generator is used to generate the second test signal and send it to the test probe to test the receiving power of the device under test.
[0011] Furthermore, it also includes: controllers;
[0012] The controller is connected to the power detector and is used to receive the power detection result from the power detector and determine the transmission power based on the power detection result;
[0013] and / or
[0014] The controller is connected to the signal generator and is used to control the signal generator to generate a second test signal with a specific frequency and power.
[0015] Furthermore, it also includes: signal distributors;
[0016] The test probe is connected to the power detector and / or the signal generator via the signal distributor, which is used to control the splitting or combining of signals or the transmission direction.
[0017] Furthermore, the signal distributor is also used to connect test instruments in parallel, and the test instruments are used to analyze the first test signal to obtain the wireless performance test results of the device under test.
[0018] Furthermore, the test probe includes any of the following: a single-polarization probe, a single-polarization probe with two different polarization directions, or a dual-polarization probe.
[0019] Furthermore, the test probe is a dual-polarization probe.
[0020] Furthermore, the power detection results include: power value, or voltage value.
[0021] In this embodiment of the invention, an active test probe is provided, comprising: a test probe, a power detector integrated with the test probe, and / or a signal generator integrated with the test probe; the test probe is used to receive a first test signal emitted by a device under test (DUT), or to emit a second test signal to the DUT; the power detector is used to detect the power of the first test signal emitted by the DUT received by the test probe, so as to determine the transmission power of the DUT based on the power detection result; the signal generator is used to generate a second test signal and send it to the test probe to test the reception power of the DUT. As can be seen from the above description, the active test probe of this invention adds a power detector and / or a signal generator to the passive test probe, enabling the testing of the transmission and reception power of the DUT without using test instruments, reducing testing costs. Furthermore, the integrated connection of the test probe with the power detector and / or the signal generator significantly reduces the equipment size occupied by the transmission and reception performance testing, alleviating the technical problems of high testing costs and large hardware size of existing passive test probes when testing the transmission and reception power of the DUT. Attached Figure Description
[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0023] Figure 1 A schematic diagram of an active test probe provided for an embodiment of this utility model;
[0024] Figure 2 This is a schematic diagram of another active test probe provided in an embodiment of the present invention. Detailed Implementation
[0025] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0026] Traditional passive test probes are costly and require large hardware devices when testing the transceiver performance of the device under test.
[0027] Based on this, the active test probe of this utility model adds a power detector and / or a signal generator to the passive test probe, which can realize the transmission and reception power test of the device under test without the use of test instruments, reducing the test cost. Furthermore, the test probe is integrated with the power detector and / or the signal generator, which greatly reduces the equipment volume occupied by the transmission and reception performance test.
[0028] To facilitate understanding of this embodiment, a detailed description of an active test probe disclosed in this utility model embodiment will be provided first.
[0029] Example 1:
[0030] According to an embodiment of the present invention, an embodiment of an active test probe is provided. Figure 1 This is a schematic diagram of an active test probe according to an embodiment of the present invention, as shown below. Figure 1 As shown, the active test probe includes: a test probe, a power detector integrated with the test probe, and / or a signal generator integrated with the test probe;
[0031] The test probe is used to receive a first test signal emitted by the device under test, or to emit a second test signal to the device under test;
[0032] The power detector is used to detect the power of the first test signal emitted by the device under test received by the test probe, so as to determine the emission power of the device under test based on the power detection result;
[0033] The signal generator is used to generate the second test signal and send it to the test probe to test the receiving power of the device under test.
[0034] In this embodiment of the invention, the power detector described above is a device in the prior art that can directly or indirectly obtain signal power. As some examples, it can be: a detector (e.g., a detector chip in the prior art) used to convert radio frequency signals (i.e., the first test signal) into voltage signals, thereby obtaining the power of the signal; a power meter that can directly measure signal power; an ADC (analog-to-digital converter) that can sample radio frequency signals and calculate power through digital processing; a thermocouple power sensor that can measure radio frequency signal power through the thermoelectric effect; and a diode power sensor that can measure radio frequency signal power by utilizing the nonlinear characteristics of a diode.
[0035] In this embodiment of the invention, an active test probe is provided, comprising: a test probe, a power detector integrated with the test probe, and / or a signal generator integrated with the test probe; the test probe is used to receive a first test signal emitted by a device under test (DUT), or to emit a second test signal to the DUT; the power detector is used to detect the power of the first test signal emitted by the DUT received by the test probe, so as to determine the transmission power of the DUT based on the power detection result; the signal generator is used to generate a second test signal and send it to the test probe to test the reception power of the DUT. As can be seen from the above description, the active test probe of this invention adds a power detector and / or a signal generator to the passive test probe, enabling the testing of the transmission and reception power of the DUT without using test instruments, reducing testing costs. Furthermore, the integrated connection of the test probe with the power detector and / or the signal generator significantly reduces the equipment size occupied by the transmission and reception performance testing, alleviating the technical problems of high testing costs and large hardware size of existing passive test probes when testing the transmission and reception power of the DUT.
[0036] The above provides a brief introduction to the active test probe of this utility model. The specific details involved are described in detail below.
[0037] In an optional embodiment of this utility model, reference is made to Figure 1 The aforementioned active test probe also includes: a controller;
[0038] The controller is connected to the power detector and is used to receive the power detection result of the power detector and determine the transmission power based on the power detection result, wherein the power detection result includes: power value, or voltage value;
[0039] and / or
[0040] The controller is connected to the signal generator and is used to control the signal generator to generate a second test signal with a specific frequency and power.
[0041] In an optional embodiment of this utility model, reference is made to Figure 2 The aforementioned active test probes also include: a signal distributor;
[0042] The test probe is connected to the power detector and / or the signal generator via the signal distributor, which is used to control the splitting or combining of signals or the transmission direction.
[0043] Specifically, signal distributors can be radio frequency switches, power dividers, circulators, etc.
[0044] In an optional embodiment of this utility model, reference is made to Figure 2 The signal distributor is also used to connect to a test instrument in parallel. The test instrument is used to analyze the first test signal to obtain the wireless performance test results of the device under test.
[0045] Specifically, the test probe is connected in parallel to a channel via a signal distributor for connecting to the test instrument. This parallel signal channel is used for: ① in transmit performance testing, sending the first test signal received by the test probe to the test instrument for analysis, including but not limited to: signal power, frequency offset performance, EVM, etc. (i.e., wireless performance test results); and / or, ② in receive performance testing, sending the signal generated by the test instrument to the test probe so that the test probe can transmit the signal to the device under test.
[0046] In one optional embodiment of this utility model, the test probe includes any of the following: a single-polarization probe, a single-polarization probe with two different polarization directions, or a dual-polarization probe.
[0047] In an optional embodiment of this invention, the test probe is a dual-polarized probe. When used to test two orthogonally polarized signals, a dual-polarized probe can perform the test more accurately than a single-polarized probe with two orthogonal polarization directions. This is because the phase centers of the two polarization unit ports of a dual-polarized antenna are usually designed to be consistent or highly similar. This consistency is crucial in wireless testing. The consistency of the phase centers ensures that the positions and angles of the two polarization units of the dual-polarized probe and the device under test remain consistent during testing, thereby correctly measuring the two polarization energies of the signal emitted by the device under test reaching the probe port position. In addition, the internal design of the dual-polarized antenna optimizes polarization isolation, which can reduce signal crosstalk.
[0048] The active test probe of this invention adds a power detector and / or a signal generator to the passive test probe, which can realize the transmission and reception power test of the device under test without the use of test instruments, reducing the test cost. Furthermore, the test probe is integrated with the power detector and / or the signal generator, which greatly reduces the equipment volume occupied by the transmission and reception performance test.
[0049] Furthermore, in the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0050] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. An active test probe, characterized in that, include: A test probe, a power detector integrated with the test probe, and / or a signal generator integrated with the test probe; The test probe is used to receive a first test signal emitted by the device under test, or to emit a second test signal to the device under test; The power detector is used to detect the power of the first test signal emitted by the device under test received by the test probe, so as to determine the emission power of the device under test based on the power detection result; The signal generator is used to generate the second test signal and send it to the test probe to test the receiving power of the device under test.
2. The active test probe according to claim 1, characterized in that, Also includes: Controller; The controller is connected to the power detector and is used to receive the power detection result from the power detector and determine the transmission power based on the power detection result; and / or The controller is connected to the signal generator and is used to control the signal generator to generate a second test signal with a specific frequency and power.
3. The active test probe according to claim 1, characterized in that, Also includes: Signal distributor; The test probe is connected to the power detector and / or the signal generator via the signal distributor, which is used to control the splitting or combining of signals or the transmission direction.
4. The active test probe according to claim 3, characterized in that, The signal distributor is also used to connect to a test instrument in parallel. The test instrument is used to analyze the first test signal to obtain the wireless performance test results of the device under test.
5. The active test probe according to claim 1, characterized in that, The test probe includes any of the following: a single-polarization probe, a single-polarization probe with two different polarization directions, or a dual-polarization probe.
6. The active test probe according to claim 1, characterized in that, The test probe is a dual-polarization probe.
7. The active test probe according to claim 2, characterized in that, The power detection results include: power value, or voltage value.