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Communication Dans Un Congrès Année : 2023

Air-Filled and Slow-Wave CNT-Based Substrate Integrated Waveguide

Résumé

This paper presents an air-filled substrate integrated waveguide (SIW) internally including a forest of carbon nanotubes (CNT) to create a slow-wave effect and thus, to decrease the dimensions of the structure. For 400-μm of CNT height, the simulation shows a reduction of the surface up to 68%, as compared to a structure without CNT, for an impact on the unloaded quality factor reduced by 19% at 28 GHz. A comparison is also made with copper blind vias instead of CNT to create the slow-wave effect: simulation shows twice more losses than the solution with CNT. By considering 200−μm CNT height, measurement results allow obtaining a 25%-reduction of the cut-off frequency as compared to a non-slow-wave waveguide with the same width, a good agreement with a theoretical expression being obtained for the phase constant. These first results represent a proof-of-concept of a low-loss and compact SIW for 5G applications. Attenuation constant can be improved with higher density of CNT.
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Dates et versions

hal-04275720 , version 1 (08-11-2023)

Identifiants

Citer

Phi-Long Doan, Jordan Corsi, Tay Beng Kang, Rongtao Jiang, Joseph De Saxce, et al.. Air-Filled and Slow-Wave CNT-Based Substrate Integrated Waveguide. 2023 53rd European Microwave Conference (EuMC), EuMIC/EuMC/EuMW, Sep 2023, Berlin, Germany. pp.850-853, ⟨10.23919/EuMC58039.2023.10290250⟩. ⟨hal-04275720⟩
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