For the system noise temperature calibration of the K/Q/W triple-band cryogenic receiver on Tianma Radio Telescope (TMRT), a design of W-band eight-hole waveguide directional coupler is proposed in ...

Abstract: This study presents the design and characterization of a directional coupler for applications in the 3 GHz frequency band, implemented using microstrip technology. Directional couplers are ...

KRYTAR, Inc., a developer of ultra-broadband microwave components and test equipment, announces a new directional coupler operating in the wideband frequency range of 0.5 to 26.5 GHz (L- through ...

Abstract: In this letter, a W-band power combiner is proposed by exploiting the 3-dB branching waveguide directional couplers and GaN power amplifiers. In the framework, a novel waveguide coupler is ...

Zeng, Lingzhen, Lu, Wei-Chun, Grimes, Paul K., Chen, Tse-Jun, Chang, Yen-Pin, Tong, Cheuk-yu, and Wang, Ming-Jye. 2020. "A Silicon Chip-Based Waveguide Directional ...