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Combiner vs Duplexer: Not the Same Thing — A Complete Engineering Guide
Jul , 28 2026
Combiner and duplexer are not the same thing. A combiner is a device that merges two or more RF signals into a single output path, with all signals flowing in the same direction — primarily used for power combining on the transmit side. A duplexer is a three‑port device that isolates transmit and receive signals, allowing them to share a single antenna, with the two signal paths flowing in opposit...
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Three 10dB Couplers Compared: Insertion Loss and PIM Test Results – Cavity vs Microstrip vs Stripline
Sep , 29 2026
In DAS indoor distribution systems and RF link designs, the 10dB directional coupler is one of the most frequently used passive components. The two specifications engineers care about most are insertion loss and passive intermodulation (PIM) — the former directly eats into the link budget, the latter determines whether the uplink noise floor can be kept down. There are three main manufacturing tec...
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