Tur, Moshe Department of Physical Electronics, School of Electrical Engineering, The Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University, Ramat Aviv, Israel.
- Two-hole coupler
- Multipath and slot couplers
- Couplers for open waveguides
- Relation of output to input
- Links to Primary Literature
- Additional Readings
A four-port waveguide device (Fig. 1) in which an incoming wave at any one port (for example, A) appears at two others (C and D), but not at the fourth (B). This device has numerous applications in wave-guide networks such as microwave waveguides, integrated optics, and optical fibers. It is the equivalent of the hybrid induction coil used in conventional wire circuit telephony to provide side-tone balance. See also: Telephone
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