A new UHF small patch antenna for a wearable application at 868 MHz, built on an innovative magneto-dielectric material, is presented. Exploiting the miniaturization properties offered by values of permeability greater than unity, a barium-strontium hexaferrite has been synthesized in order to achieve the best compromise between antenna dimensions and performances. Once the electrical properties of the substrate were characterized, simulations and measurements of reflection coefficient and radiated far-field have been carried out, showing a good agreement and, consequently, a proof of the reliability of our design approach. Further improvements of the proposed design can be taken into account for applications in the 2.4 GHz ISM band
A wearable UHF small patch antenna on a new magneto-dielectric material / M. Aldrigo; A. Costanzo; D. Masotti; V. Rizzoli. - ELETTRONICO. - (2012), pp. 301-304. (Intervento presentato al convegno XIX Riunione Naz. Elettromagnetismo tenutosi a Roma nel 10-14 Settembre 2012).
A wearable UHF small patch antenna on a new magneto-dielectric material
ALDRIGO, MARTINO;COSTANZO, ALESSANDRA;MASOTTI, DIEGO;RIZZOLI, VITTORIO
2012
Abstract
A new UHF small patch antenna for a wearable application at 868 MHz, built on an innovative magneto-dielectric material, is presented. Exploiting the miniaturization properties offered by values of permeability greater than unity, a barium-strontium hexaferrite has been synthesized in order to achieve the best compromise between antenna dimensions and performances. Once the electrical properties of the substrate were characterized, simulations and measurements of reflection coefficient and radiated far-field have been carried out, showing a good agreement and, consequently, a proof of the reliability of our design approach. Further improvements of the proposed design can be taken into account for applications in the 2.4 GHz ISM bandI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
