Description

7 dB directional coupler: An RF passive component designed to extract or sample a controlled portion of the signal from a main transmission line, with a coupling value of 7 dB—meaning roughly 20% of the input power is coupled to the secondary port while the rest continues through. Commonly used in RF and microwave systems for monitoring, signal measurement, and feedback, it provides low insertion loss on the through path, good directivity, and reliable performance over a wide frequency range, making it suitable for GSM, LTE, and broadband applications.