Description

15 dB directional coupler: An RF passive component designed to couple off a small fraction of the signal from the main transmission line, with a coupling factor of 15 dB—meaning roughly about 3% of the input power is tapped to the coupled port while the remaining ~97% continues through the main path. Commonly used in RF and microwave systems for signal monitoring, power sampling, measurement, and feedback, it offers low insertion loss on the through path, good directivity, and consistent performance across a broad frequency range, making it suitable for GSM, LTE, DAS, and other broadband applications.