Dielectric embedded ESPAR (DE-ESPAR) antenna array for wireless communications

被引：89

作者：

Lu, JW ^{[1
]}

Ireland, D

Schlub, R

机构：

[1] Griffith Univ, Sch Microelect Engn, Brisbane, Qld 411, Australia

[2] Antenova Ltd, Cambridge CB5 8RN, England

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2005年 / 53卷 / 08期

关键词：

adaptive antennas; dielectric embedded antenna array; parasitic radiator; smart antennas;

D O I：

10.1109/TAP.2005.852517

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：

A novel dielectric embedded electronically steerable passive array radiator (ESPAR) (DE-ESPAR) antenna array for mobile wireless communication terminal is developed by finite element method based numerical modeling technique. The size reduction of the seven-element monopole antenna was accomplished by embedding the array in a cylindrical rod of FIK ceramic complex with a relative permittivity around epsilon(r) = 4.5. Dielectric embedded prototypes of a seven-element ESPAR antenna array were modeled and experimentally characterized. Experimental and numerical results are in good agreement. The optimized antenna produced a horizontal directivity of 5.1 dBi and return loss of 19 dB at 2.48 GHz. An overall volume reduction of 80% and footprint reduction of 50% were achieved.

引用

页码：2437 / 2443

页数：7

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