W-wave-band circulator

The invention discloses a W-wave-band circulator, and belongs to the field of a microwave passive device. The W-wave-band circulator comprises a ferrite center junction positioned in the center of the circulator, three substrate integrated waveguides connected with the ferrite center junction to form a Y-shaped structure, an adapting structure used for realizing matching between the substrate integrated waveguides and microstrip lines, and the microstrip lines are used for signal output, wherein the ferrite center junction is a cylinder; and a bias magnetic field in a direction perpendicular to the circulator is applied to the ferrite center junction. The W-wave-band circulator provided by the invention adopts the substrate integrated waveguides as the transmission lines, so that the miniaturization, the integration and the high performance of the W-wave-band circulator are realized. 种W波段环行器，属于微波无源器件领域。包括位于环形器中心的铁氧体中心结，与铁氧体中心结相连且形成"Y"型结构的三个基片集成波导，用于基片集成波导与微带线匹配的转接结构，用于信号输出的微带线；所述铁氧体中心结为圆柱体，所述铁氧体中心结上施加方向垂直于环形器