3-d FDTD design analysis of a 2.4-GHz polarization-diversity printed dipole antenna with integrated balun and polarization-switching circuit for WLAN and wireless communication applications

被引:105
作者
Chuang, HR [1 ]
Kuo, LC [1 ]
机构
[1] Natl Cheng Kung Univ, Dept Elect Engn, Tainan 70101, Taiwan
关键词
2.4; GHz; finite difference time domain (FDTD); integrated balun; p-i-n diode; polarization diversity; printed dipole; switching circuit;
D O I
10.1109/TMTT.2002.807838
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
Detail numerical simulation, fabrication, and experimental measurement of a 2.4-GHz polarization-diversity printed dipole antenna are presented for wireless communication applications. Two orthogonal printed dipole antennas and each with a microstrip via-hole balun feeding structure are combined and fabricated on an FR-4 printed-circuit-board substrate. A p-i-n-diode circuit is used to switch and select the desired antenna polarization. In the antenna design simulation, a full-wave method of a three-dimensional finite-difference time-domain (FDTD) method is employed to analyze the entire structure of the printed antenna including the lumped elements of the polarization-selected p-i-n diode switching circuit. The Berenger. perfectly matched layer absorbing-boundary condition is used for the FDTD computation. Numerical and measured results of antenna radiation characteristics, including input standing-wave ratio, radiation patterns, and polarization diversity are presented.
引用
收藏
页码:374 / 381
页数:8
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