Transponder Using Self-Oscillating Mixer and Active Antenna.

摘要

A new planar transponder integrating a self-oscillating mixer (SOM) and activeantennas is presented. The receiving active antenna combines a FET SOM with a patch antenna and the transmitting antenna is combined with the IF amplifier. The transponder was successfully operated up to 2 m. The design concept and the experimental result are discussed. (MM).