Antenna Couplers vs Splitters | 3 differences explained

​Antenna couplers ​​preserve signal strength​​ with ​​<1dB insertion loss​​, while splitters ​​divide power evenly​​, causing ​​3–6dB loss per output port​​. Couplers ​​isolate ports (30–40dB isolation)​​ to prevent interference, whereas splitters have ​​minimal isolation (10–20dB)​​, risking ​​cross-talk in multi-device setups​​. Frequency range differs—couplers handle ​​0.5–40GHz with ±0.5dB flatness​​, but splitters typically support ​​0.1–6GHz with ±2dB variance​​. […]

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