Experimental Study on the Transmittance of Plane Wave by a Two-Dimensionally Electromagnetic Crystal

• Main Authors: Shien-Tung Huang, 黃獻東
• Other Authors: Kuan-Kin Chan
• Format: Others
• Language: en_US
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/4mk9ma

碩士 === 國立交通大學 === 電信工程系所 === 92 === In this thesis, we have studies the scattering characteristics of a two-dimensional Electromagnetic (EM) crystal made up of metal strips arrays. To measure the transmittance of the EM crystal, we have setup a test fixture containing two wide-band double ridged horns and a microwave mask employed to generate a finite size uniform plane wave for illuminating the EM crystal. Besides, we have put this test fixture in an anechoic chamber to avoid the interference and, meanwhile, to suppress the multiple scattering. We have taken numerous measurements by changing some structural parameters in conjunction with the 2-D EM crystal. The good agreement between those measured data and the theoretical computation based on the program ECMRY [18] prove the standard and consistent measurement in this research work.