基于双孔耦合的X波段一体化隔板极化耦合器

X-band Integrated Septum Polarization Coupler Based on Dual-hole Coupling

在圆极化通信或雷达馈线系统中,圆极化器和定向耦合器都是必不可少的器件。传统的设计方案是将极化器和耦合器独立设计,再通过传输线相连接,这会带来馈线损耗大、结构不够紧凑等问题。为解决这些问题,在隔板圆极化器设计的基础上,结合双孔耦合理论和传统波导理论,对波导定向耦合器进行了研究和创新设计,提出了一种基于双孔耦合的X波段隔板极化耦合器。仿真结果表明,一体化极化耦合器在8.5~10.5 GHz频带内具有良好的极化性能和耦合性能。

The polarizer and the directional coupler are the necessary elements for the feeding system of a circularly polarized communication or radar.In traditional solutions,they are designed independently,and connected each other with a transmission line.This can lead to some engineering problems,such as large transmission loss and non-compact configuration.In order to solve these problems,a novel X-band integrated septum polarization coupler based on dualhole coupling is proposed in this article.On the basis of designing the septum polarizer,the dual-hole coupling theory and the traditional waveguide theory are studied and reviewed.Simulated results show that the proposed integrated septum polarization coupler has good polarization and coupling performances in the frequency range 8.5~10.5GHz.