RFID-inspired backscattering modulation implemented over other technologies promises low-power identification and communication among things. Recently, the feasibility of RFID over 10.525 GHz Microwave Motion Sensor (MMS) has been proved through the design and realization of a prototype of both reader and transponder. The former was provided with a simple and not particularly miniaturized 4-element array of patch antennas. In this work, a compact 10.525 GHz antenna in SIW technology conceived for MMS-compatible X-band transponder is presented. Both antenna directivity and circular polarization have been optimized to guarantee a robust communication while saving power. The antenna shows a very satisfying performance, with a-10 dB input matching frequency bandwidth equal to 130MHz, high efficiency, and an Axial-Ratio 3 dB bandwidth of lower than 5%.
Circularly-polarized SIW antenna for novel backscattering-based X-band communication systems
Colella R.
2020-01-01
Abstract
RFID-inspired backscattering modulation implemented over other technologies promises low-power identification and communication among things. Recently, the feasibility of RFID over 10.525 GHz Microwave Motion Sensor (MMS) has been proved through the design and realization of a prototype of both reader and transponder. The former was provided with a simple and not particularly miniaturized 4-element array of patch antennas. In this work, a compact 10.525 GHz antenna in SIW technology conceived for MMS-compatible X-band transponder is presented. Both antenna directivity and circular polarization have been optimized to guarantee a robust communication while saving power. The antenna shows a very satisfying performance, with a-10 dB input matching frequency bandwidth equal to 130MHz, high efficiency, and an Axial-Ratio 3 dB bandwidth of lower than 5%.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
