Portable assembly for performing e.g. velocity determination, of athlete during e.g. athletics, has transponder releasably connected to carrier such that transponder cooperates with internal antenna for receiving or sending signals

摘要

The assembly has an internal antenna (20) integrated with a carrier (200) e.g. garment. A transponder (1) i.e. radio frequency identification (RFID) transponder, is releasably connected to the carrier such that the transponder cooperates with the antenna for receiving or sending signals, where the carrier is fitted to the antenna in a parallel position relative to a user part. A part of the antenna is wrapped in a composite state. The antenna is arranged to form a resonant circuit, which is suited to a tunable frequency of the transponder while handling broadcast signals.