Radio frequency test device and mobile terminal test system

Abstract

The invention discloses a radio frequency test device and a mobile terminal test system. The radio frequency test device comprises an integrated tester and an interference signal generator, and further comprises a first isolator and a combiner, wherein the integrated tester comprises an emitting port and a receiving port which are separated; the emitting port is connected with the input port of the first isolator; the output port of the first isolator is connected with one input port of the combiner; the interference signal generator is connected with other input ports of the combiner; a radio frequency emission signal emitted by the integrated tester or a radio frequency signal emitted by the integrated tester and the interference signal generator are output by the output port of the combiner; and the radio frequency signal received by the radio frequency test device accesses to the integrated tester via the receiving port. According to the radio frequency test device provided by the invention, the emitting report and the receiving port are separated, and the isolator is used to isolate the signals, thereby effectively avoiding mutual interference of the signals, improving the test stability and the test accuracy of the test device.

Description

technical field [0001] The invention belongs to the technical field of radio frequency testing, and in particular relates to radio frequency testing equipment and a mobile terminal testing system using the radio frequency testing equipment. Background technique [0002] Mobile communication technology is developing rapidly, and various standards are constantly evolving. Now it has entered the 3G era, mainly including WCDMA, EVDO and TD-SCDMA. Moreover, mobile Internet applications have become the mainstream of mobile terminal applications. Therefore, radio frequency indicators have become one of the important indicators for judging the quality of terminal performance. As technology continues to advance and data rates increase, so does the requirement for associated radio frequency capabilities. With the support of instrument manufacturers, the test of radio frequency indicators of each standard will be changed from non-signaling mode to signaling mode when the technology gr...

AI Technical Summary

Problems solved by technology

When using this test system to test the receiver interference performance index of the communication terminal, the following mutual interference problems are likely to occur due to the need to add interference sources: On the one hand, the high-power interference signals generated by the interference sources will enter the comprehensive tester The RF port of the RF port will affect the input and output signals of the RF port, resulting in the instability of the test system and inaccurate test results; error, even damage the interference signal generator in severe cases

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