Numerical and experimental characterization of a button-shaped miniaturized UHF antenna on magneto-dielectric substrate

被引：8

作者：

Aldrigo, Martino ^{[1
]}

Costanzo, Alessandra ^{[1
]}

Masotti, Diego ^{[1
]}

Baldisserri, Carlo ^{[2
]}

Dumitru, Ioan ^{[3
]}

Galassi, Carmen ^{[2
]}

机构：

[1] Univ Bologna, DEI, I-40136 Bologna, Italy

[2] CNR, ISTEC, I-48018 Faenza, RA, Italy

[3] Univ Al Ioan Cuza, Fac Phys, CARPATH, Iasi 700506, Romania

来源：

INTERNATIONAL JOURNAL OF MICROWAVE AND WIRELESS TECHNOLOGIES | 2013年 / 5卷 / 03期

关键词：

UHF electrically small antennas; Magneto-dielectric substrates; Wearable systems; Hexaferrites; DESIGN;

D O I：

10.1017/S1759078713000445

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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 performance, a barium-strontium hexaferrite Ba0.75Sr0.25Fe12O19 has been synthesized as the antenna substrate to achieve magnetic permeability double than vacuum in the band of interest. First material realization is characterized and dispersive permittivity and permeability behaviors are included in the design of a small patch antenna with a shorting-plate. A button-size realization is obtained and its suitability for wearable applications is numerically and experimentally demonstrated on body with and without the presence of conductive shielding. Very good agreement with measurements is demonstrated for both matching and radiation performance of the antenna.

引用

页码：231 / 239

页数：9

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