The design and characterization of a new broadband small patch antenna, based on an innovative magneto-dielectric material and suitable for wearable applications at 868 MHz, is presented. To reduce antenna dimensions while preserving its radiation and matching performances, a barium-strontium hexaferrite Ba0.75Sr0.25Fe12O19 has been synthesized to achieve a magnetic permeability double than vacuum in the band of interest. The material is first experimentally characterized and the dispersive permittivity and permeability behaviors are accounted for during the design of a small patch antenna with a shorting-plate. Very good agreement with measurements is demonstrated for both matching and radiation performances of the antenna.
M. Aldrigo, D. Bianchini, A. Costanzo, D. Masotti, C. Galassi, L. Mitoseriu (2012). New broadband button-shaped antenna on innovative magneto-dielectric material for wearable applications. LEUVEN : EuMA International Journal Editor.
New broadband button-shaped antenna on innovative magneto-dielectric material for wearable applications
ALDRIGO, MARTINO;COSTANZO, ALESSANDRA;MASOTTI, DIEGO;
2012
Abstract
The design and characterization of a new broadband small patch antenna, based on an innovative magneto-dielectric material and suitable for wearable applications at 868 MHz, is presented. To reduce antenna dimensions while preserving its radiation and matching performances, a barium-strontium hexaferrite Ba0.75Sr0.25Fe12O19 has been synthesized to achieve a magnetic permeability double than vacuum in the band of interest. The material is first experimentally characterized and the dispersive permittivity and permeability behaviors are accounted for during the design of a small patch antenna with a shorting-plate. Very good agreement with measurements is demonstrated for both matching and radiation performances of the antenna.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
