- #1
KaluzaKlein
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I am trying to understand how leaky cables work, and especially those that permit higher frequencies (I think about 2.4GHz), but I am quite new to electromagnetics in general. For clarification, leaky cables are usually coaxial cables that have apertures in their outer conductor from where an amount of radiation "leaks" out, thus they act like antennas.
I found this nice article "Leaky cables are a good thing" that mentions two kinds of those cables, radiating mode and coupled mode: In coupled mode adjacent apertures are spaced in a distance smaller than the wavelength, while in radiating mode the apertures are spaced almost a wavelength apart.
I have done some amount of reading, but still I am not sure I understand the concept of radiating vs coupled mode and how exactly does it relate to the wavelength. Is there an easy answer on this one?
I found this nice article "Leaky cables are a good thing" that mentions two kinds of those cables, radiating mode and coupled mode: In coupled mode adjacent apertures are spaced in a distance smaller than the wavelength, while in radiating mode the apertures are spaced almost a wavelength apart.
I have done some amount of reading, but still I am not sure I understand the concept of radiating vs coupled mode and how exactly does it relate to the wavelength. Is there an easy answer on this one?