Menetelmä ja järjestelmä etätunnisteiden testaamiseksi

摘要

The invention relates to a method and system for testing remote transponders. In the method, a radio-frequency transponder is excited with the aid of a first electromagnetic field and the response of the radio-frequency transponder is measured with the aid of a second electromagnetic field. According to the invention, one of said fields is a radiating field and the other of said fields is a reactive field. The invention eliminates the need to test transponders separately from other transponders and the need to inactivate or screen other transponders in the vicinity of the transponder being measured.