期刊名称：International Journal of Computer Science Issues
印刷版ISSN：1694-0784
电子版ISSN：1694-0814
出版年度：2011
卷号：8
期号：4
出版社：IJCSI Press
摘要：The aim of this investigation is to realize a Butler matrix for a multibeam base station antenna dedicated to a UMTS application; this matrix has been realized with microstrip technology. The antenna associated with this application is a network of patches distributed in a tree structure and fed by electromagnetic coupling. The patch distribution structure used in this experiment allowed a great improvement of gain, directivity as well as the adaptation level of the studied array. The following work was done between the signals, systems and components laboratory of FST-Fez and the microwave laboratory of the National Institute of Posts and Telecommunications.
