A hybrid coupler is a passive device used in radio and telecommunications. It is a type of directional coupler where the input power is equally divided between two output ports. Since it is a special case of directional coupler, it is discussed in Power dividers and directional couplers.

References [link]

• D. M. Pozar, Microwave Engineering, Third Edition, John Wiley & Sons, Inc., N.J. 2005.
• G. R. Jessop. (1993). VHF UHF Manual. 4th ed. n.p.: Radio Society of Great Britain. p. 9.31.

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