A Design and Analysis of Dolph-Chebyshev Microstrip Planar Array Using Butler Matrix Beamforming Networks  

作　　者：ABDALLAH A.S. MOHAMMED Y.E. 

机构地区：[1]SchoolofTelecommunicationEngineering,SchoolofTelecommunicationEngineering BeijingUniversityofPostsandTelecommunications,Beijing100876,P.R.China,BeijingUniversityofPostsandTelecommunications,Beijing100876,P.R.China

出　　处：《The Journal of China Universities of Posts and Telecommunications》2003年第2期34-38,共5页中国邮电高校学报（英文版）

摘　　要：The design and analysis of special type beam former, the Butler matrix, toachieve orthogonal beam-forming networks is presented in this paper. A 4 X 4 microstrip planar arrayantenna is assumed to simulate a 4 X 4 Butler matrix to demonstrate orthogonal beam forming andbeam steering. The dimensions of rectangular patches in the planar array are chosen according to theDolph-Chebyshev current distribution in order to minimize the side-lobe level ratio for a givenvalue of beamwidth. The simulations are carried out using an antenna design and analysis softwarePCAAD. It is shown that orthogonal beams can be formed to cover about 163° angle with a constantbeam crossover level and high directivity.The design and analysis of special type beam former, the Butler matrix, toachieve orthogonal beam-forming networks is presented in this paper. A 4 X 4 microstrip planar arrayantenna is assumed to simulate a 4 X 4 Butler matrix to demonstrate orthogonal beam forming andbeam steering. The dimensions of rectangular patches in the planar array are chosen according to theDolph-Chebyshev current distribution in order to minimize the side-lobe level ratio for a givenvalue of beamwidth. The simulations are carried out using an antenna design and analysis softwarePCAAD. It is shown that orthogonal beams can be formed to cover about 163° angle with a constantbeam crossover level and high directivity.

关 键 词：antenna array butler matrix beam former dolph-chebyshev currentdistribution 

分 类 号：TN925[电子电信—通信与信息系统]