Insertion loss test method and system
A technology of insertion loss and testing system, which is applied in measuring devices, measuring electrical variables, and measuring dielectric properties, etc. It can solve problems affecting the measurement accuracy of insertion loss and large loss, and achieve high test efficiency, improved accuracy, and simple connection lines Effect
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Embodiment 1
[0034] image 3 A functional block diagram of an implementation of an insertion loss testing system is shown. The insertion loss testing system includes a radio frequency transmitter, a first power meter, a second power meter, and a switch gating circuit. The radio frequency transmitter is connected to the first power meter through a radio frequency cable, and the first power meter and the second power meter are respectively connected to the switch gating circuit through a radio frequency cable, and the switch gating circuit is used for to access the device under test.
[0035]The radio frequency transmitter sends a radio frequency signal of a specific frequency band to the first power meter through a radio frequency cable, and the radio frequency transmitter mainly refers to a high-power radio frequency signal source, which is used to simulate a transmitting base station or a high-power radio station. The first power meter and the second power meter are respectively arrange...
Embodiment 2
[0046] In order to realize the online real-time synchronous processing of data collection of each part, simplify the connection line and intelligently control the insertion loss test, on the basis of the first embodiment, the system of the second embodiment also includes a control terminal and a serial port server. The control terminal is communicatively connected with the first power meter, the second power meter, and the switch gating circuit respectively via the serial port server.
[0047] Figure 5 Another embodiment of an insertion loss testing system of the present invention is shown. The control terminal can be a control computer, or other smart devices such as mobile phones and other handheld pads. The control terminal communicates with the serial port server through Ethernet, so as to control the serial port server to obtain the power values (unit: W) of the first power meter and the second power meter, and perform insertion loss calculation. This is faster, more...
Embodiment 3
[0053] Figure 6 An embodiment of an insertion loss testing method of the present invention is shown. The test method is applicable to the insertion loss test system of Embodiment 1 or Embodiment 2, and the above-mentioned system is used to directly measure the insertion loss value of the device under test when it is connected to the insertion loss test system.
[0054] Specifically, the test method includes:
[0055] Step 1 S10, using the switch gating circuit to connect the device under test to the insertion loss test system;
[0056] Step 2 S20, obtain the power values of the first power meter and the second power meter, and calculate the insertion loss ΔS according to the above power values 1 .
[0057] Refer to Embodiment 1 or Embodiment 2 for the example process of the specific test method.
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