Directional Electromagnetic Couplers
1954; Institute of Electrical and Electronics Engineers; Volume: 42; Issue: 11 Linguagem: Inglês
10.1109/jrproc.1954.274664
ISSN2162-6634
Autores Tópico(s)Electromagnetic Compatibility and Noise Suppression
ResumoThe natural coupling between parallel transmission lines is inherently directional. Very simple and cheap directional couplers can be made which utilize this effect. By introducing appropriate variation of coupling with distance a wide variety of transmission characteristics may be realized, including high-pass (ideally, infinite bandwidth) characteristics. The coupled lines may be of equal or different impedance. Thus, a simple configuration of four wires (or two wires and ground) can serve simultaneously as a directional coupler, filter, and transformer.
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