Application of FDTD Method to Study U-Slot Patch Antennas

• Main Authors: Shu-Hsuan Chen, 陳舒璇
• Other Authors: 陳興義
• Format: Others
• Language: en_US
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/16395986546403265846

碩士 === 元智大學 === 通訊工程學系 === 94 === The finite-difference time domain(FDTD) method, instead of commercial software packages such as HFSS, IE3D, and CST, is successfully used to study characteristics of U-Slot and modified U-slot Patch Antennas. The validation of the FDTD method is checked by measurements. The modified U-slot patch antenna using a metallic oblong-patch with different angles is respected to the center line as the bottom layer has been proven that it can provide wide-band enhancement, multi-band operation, good impedance matching, and high antenna efficiency. Finally, The modified U-slot patch antenna with a small ferromagnetic U-strip inserted in the metallic bottom layer has been shown to provide a return loss in excess of 10 dB over an extremely wide frequency range and high antenna efficiency.