Design of a multimode beamforming network based on the scattering matrix analysis

• Published in: Science China. Information sciences Vol. 52; no. 7; pp. 1258 - 1265
• Main Authors: Cheng, YuJian, Hong, Wei, Wu, Ke
• Format: Journal Article
• Language: English
• Published: Heidelberg SP Science in China Press 01.07.2009; Springer Nature B.V
• Subjects: Beamforming; Computer Science; Information Systems and Communication Service; Matrix methods; Millimeter waves; Multibeam antennas; S matrix theory; Substrate integrated waveguides; 天线系统; 巴特勒; 散射矩阵; 波束形成网络; 矩阵分析; 辐射效率; beamforming network (BFN); multibeam antenna; multimode; substrate integrated waveguide (SIW)
• ISSN: 1009-2757; 1674-733X; 1862-2836; 1869-1919
• DOI: 10.1007/s11432-009-0093-x

The investigation of the multimode beamforming network （BFN） has been developed from its scattering matrix （S-matrix） analysis. A substrate integrated waveguide （SIW） BFN is designed and fabricated on a single Rogers 5880 substrate. This device is not only marked by features of conventional BFN, such as Butler matrix, but also has additional benefits, e.g. more compact configuration and higher radiation efficiency. Measured and simulated results based on the proposed structure are in a good agreement, which indicates that this novel type of BFN has good characteristics and presents an excellent candidate in the development of intelligent microwave and millimeter-wave multibeam antenna systems.