![electromagnetism - Why the fields of the quasi-TEM mode of microstrip line tend to concentrate in the dielectric as frequency goes higher? - Physics Stack Exchange electromagnetism - Why the fields of the quasi-TEM mode of microstrip line tend to concentrate in the dielectric as frequency goes higher? - Physics Stack Exchange](https://i.stack.imgur.com/koWf0.png)
electromagnetism - Why the fields of the quasi-TEM mode of microstrip line tend to concentrate in the dielectric as frequency goes higher? - Physics Stack Exchange
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Coaxial cable || Derivation of potential for TEM mode and discussion on higher order(TE & TM) modes - YouTube
![Modes, explained by RP Photonics Encyclopedia; waveguide, propagation modes, optical fiber, resonator, resonator, field distribution Modes, explained by RP Photonics Encyclopedia; waveguide, propagation modes, optical fiber, resonator, resonator, field distribution](https://www.rp-photonics.com/img/tem_modes.png)