| 摘要 |
The present invention relates to a passive transponder comprising: an antenna having two electrically conductive parts; a diode connected to the antenna; and a transmission line connected to the antenna and to the diode. The transmission line is adapted to match the impedance of the diode to an impedance of the antenna, wherein the passive transponder, when hit by RF power of a first frequency f1, retransmits RF power of a harmonic frequency fh. Each electrically conductive part of the antenna comprises a flexible conductive thread having a first end and a second end, wherein the diode is connected to a first end of the flexible conductive threads. The invention also relates to an item, such as a fabric or adhesive label, including at least one passive transponder. |
