摘要
本文对一种覆盖 90度扇区的四波束切换天线进行了分析和设计 .首先采用微带结构的 4× 4Butler矩阵作为波束合成网络 ,其中 90度相差的混合接头用 3dB定向耦合器实现 .文中给出了该Butler矩阵散射参数的计算和测量结果 .然后对实现预波束要求的阵列结构进行了分析和综合 .
A four-beam-switched antenna is analyzed and designed. Firstly, a microstrip Butler matrix is used as the beamforming network, in which the 90° hybrid is realized by a 3 dB directional coupler. The S parameters of the network are computed and measured. Then, the planar array used to obtain the desired beam pattern is analyzed and synthesized. Finally, the experimental results of the prototype antenna are given.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2003年第9期1372-1374,共3页
Acta Electronica Sinica
关键词
波束切换天线
微带Butler矩阵
平面阵
Antenna feeders
Directional patterns (antenna)
Microstrip lines
Scattering parameters
Waveguide couplers
