Antenna module for simulating terminal radiation and in-vehicle electromagnetic radiation test system and method

Abstract

The invention provides an antenna module for simulating terminal radiation and an in-vehicle electromagnetic radiation test system and method. The antenna module comprises a substrate; and the first surface of the substrate is provided with a radiation microstrip, a feeder line which is connected with the radiation microstrip and inputs a radio frequency signal to the radiation microstrip, and a power adjusting unit which is connected in series with the feeder line. A grounding layer is arranged on the second surface of the substrate, the first surface and the second surface are opposite, andthe grounding layer covers all or part of the feeder lines on the second surface. The antenna module has good omnidirectivity. The radiation power of the radiation micro-strip can be flexibly adjustedthrough the power adjusting unit; the electromagnetic radiation condition of the terminal equipment in various working modes can be highly simulated, and the problem of poor consistency of test datacaused by different manufacturers, placement postures and test placement positions of the terminal equipment when the terminal equipment is directly used for radiation test is solved. The system performs a radiation test in the microwave darkroom, can avoid external signal interference, and guides a user to reasonably place a terminal.

Description

technical field [0001] The invention relates to the field of electromagnetic radiation testing, in particular to an antenna module for simulating terminal radiation, an in-vehicle electromagnetic radiation testing system and a method. Background technique [0002] At present, automobiles are ushering in the major changes of intelligence, networking, and electrification, and the proportion of electronic components in the whole vehicle is increasing. However, while electronic equipment increases the intelligence and convenience of automobiles, it also brings A series of electromagnetic compatibility and human body electromagnetic radiation problems, the use of mobile terminal equipment carried by drivers and passengers, such as mobile phone calls, will aggravate the problem of human body electromagnetic radiation in the car. The existing human body electromagnetic protection testing technology is mainly for the 10Hz to 400KHz frequency band in the car, and there are fewer test...

AI Technical Summary

Problems solved by technology

[0005] The beneficial effects of the above technical solution are: the antenna module uses a microstrip structure as the antenna body to radiate radio frequency signals, and the ground layer only covers all or part of the feeder line on the second surface, so that the antenna module has good omnidirectionality and little radiation. The radiation power of the belt can be adjusted to highly simulate the electromagnetic radiation of different manufacturers' terminal equipment (such as mobile phones) in various working modes (such as calling, uploading data or downloading data, etc.), which solves the problem of direct use of terminal equipment for radiation testing. The problem of poor test data consistency caused by different terminal equipment manufacturers, placement postures and test placement locations; and the antenna module also has the beneficial effects of simple structure and easy processing

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