Broadband antenna e.g. identification/ tag-antenna, for radio frequency identification system, has two radiation bodies forming resonance loops with linking loop for providing respective resonant frequencies for antenna

摘要

The broadband antenna (100) has a linking loop (110) with supply connections (111, 112). A radiation body (121) forms a resonance loop with the linking loop for providing a resonant frequency for the antenna. Another radiation body (122) forms another resonance loop with the linking loop for providing another resonant frequency for the antenna. The linking loop supplies signals based on the two resonant frequencies, where the loop is separated from the two radiation bodies.