What is the difference between directional coupler and magic tee

A ​​directional coupler​​ samples RF signals unidirectionally (e.g., ​​-20dB coupling​​) with high isolation (​​>30dB​​), ideal for power monitoring. A ​​magic tee​​ (waveguide hybrid junction) splits signals into ​​equal amplitude (±90° phase shift)​​ across E- and H-arms, used in balanced mixers or antennas. Couplers handle ​​1–40GHz​​, while magic tees operate at ​​microwave frequencies (e.g., 8–12GHz)​​. ​​Basic […]

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