Generalized transmission line theory as an antenna theory for EMC analysis

Gronwald, Frank; Nitsch, J.; Tkachenko, S.

doi:10.1007/s00202-011-0200-z

Cited by 5 publications

(1 citation statement)

References 7 publications

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“…In the current information age, wireless communication makes everyone and everything connected. Antennas have been widely used in almost all areas of the current information world, much like the human eyes and ears, because antennas can convert free-space electromagnetic waves in wireless channels to currents (or guided mode) in transmission line circuits, and vice versa [1][2][3][4][5]. The impedance matching condition [6][7][8][9] at the radiation interface established by the antennas and the surroundings, which is generally pre-designed, determines the conversion efficiency (Fig.…”

Section: Introductionmentioning

confidence: 99%

Commercial-printed-circuitry-compatible Self-superhydrophobic Antennas Based on Laser Direct Writing

Ge¹,

Yang²,

Ren³

et al. 2023

PIER

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Antennas are essential devices to build everything connected in the era of information. However, the quality of communications would be degraded with the presence of raindrops on the antenna surface. Additional antiwater radomes may generate radiation loss and dispersive impedance mismatch over a broad frequency range, which is not acceptable for next-generation communication systems integrating multiple bands. Here, we report the first experimental demonstration of selfhydrophobic antennas that cover the bands of 1.7 GHz, 3.5 GHz, and 8.5 GHz through a laser-directwriting treatment. Experimental results show that the return loss, radiation pattern, and efficiency of self-superhydrophobic antennas can be maintained in the mimicked rainy weather. Furthermore, writing hydrophobic nanostructures on both dielectrics and metals is compatible with commercial printed circuitry techniques widely used in industries. Our technique will augment the laser fabrication technology for specialized electromagnetic devices and serve as a powerful and generalized solution for all-weather wireless communication systems.

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