Application in Phase Array Antenna Time Delay Element

• Main Authors: Shih-Tai Weng, 翁世泰
• Other Authors: Wen-Fung Liu
• Format: Others
• Language: zh-TW
• Published: 2002
• Online Access: http://ndltd.ncl.edu.tw/handle/wwmhah

碩士 === 逢甲大學 === 電機工程所 === 90 === Abstract The method of fiber Bragg gratings used for the control and distribution of signals within microwave phased array antenna systems has been the subject of potential research over past several years. Its advantages have: small size, low losses, lightweight, and immunity to electromagnetic interferences. However, there have been several approaches for the beam-steering of a phased array antenna by using fiber grating technique. A typical approach is that a number of uniform fiber Bragg gratings written at different positions along fiber axis are used for determining the beam pointing direction of the array antenna. Instead of using uniform fiber Bragg gratings, we propose a scheme which employs superstructure fiber bragg gratings (SFBG) for an accurate time-delay beam-steering system of array antenna.