FDTD analysis of dielectric-embedded electronically switched multiple-beam (DE-ESMB) antenna array

被引：11

作者：

Lu, JW ^{[1
]}

Thiel, D ^{[1
]}

Saario, S ^{[1
]}

机构：

[1] Griffith Univ, Sch Microelect Engn, MCE, Brisbane, Qld 4111, Australia

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2002年 / 38卷 / 02期

关键词：

dielectric embedded antenna array; electronically switched multiple beam; FDTD analysis; smart antenna;

D O I：

10.1109/20.996182

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 procedure, finite-difference time-domain (FDTD) modeling, and experimental measurements for a novel dielectric-embedded electronically switched multiple-beam (DE-ESMB) antenna array are presented in this paper. Size reduction of a parasitic switched monopole antenna was accomplished by embedding the array in a cylindrical rod of L6G nylon with a relative permittivity epsilon(r) = 4.4. Dielectric-embedded and free-space prototypes of a nine-element ESMB antenna array were modeled and experimentally characterized. Experimental measurements and numerical results are in good agreement. The measured return loss for the nine-element embedded antenna was less than -25 dB at 2.32 GHz. An overall volume reduction of 80% and footprint reduction of 50% was achieved. Adaptive simulated annealing with FDTD was used to optimize the 17-element DE-ESMB array, achieving a return loss of less than -10 dB across the 2.4 GHz to 2.5 GHz ISM band.

引用

页码：701 / 704

页数：4