Abstract: In this work, a novel full W-band waveguide reflection-based adjustable attenuator (WRAA) based on quadrature hybrid couplers (QHCs) is presented. The attenuator consists of input and output ...

A new X-band waveguide directional coupler working at 11.9924 GHZ is designed. Four holes symmetrical to the structure is drilled along the central line of the narrow-wall, which is used to couple the ...

Abstract: A study of a novel directional coupler for measuring the output power of a W-band gyro-TWT has been presented. The designed directional coupler is a three ports device, in which, the ...

‡ State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China 130022 § Graduate School of Chinese Academy of Sciences ...