A Novel planar cylindrical waveguide-to-planar transition for transceivers at 2.45 GHz ISM-band

A novel planar waveguide-to-planar transition will be presented. This transition will be used to realize a RFID antenna which can be embedded inside of metallic objects. Measurement and deembedding of the results will be presented. The designed transition and antenna achieves better than 10 dB impedance matching to a 50 ohms system in the frequency range from 2.3 GHz to 2.55 GHz.