ArticleNanomaterials (Basel, Switzerland)2022
Design and Implementation of Graphene-Based Tunable Microwave Filter for THz Applications.
Article in Nanomaterials (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed.
- Current Advances in Nanoelectronics, Nanosensors, and Devices.Nanomaterials (Basel, Switzerland) · 2024Article
- Terahertz Biosensor Engineering Based on Quasi-BIC Metasurface with Ultrasensitive Detection.Nanomaterials (Basel, Switzerland) · 2024Article
- Design Optimization and Characterization with Fabrication of Nanomaterials-Based Photo Diode Cell for Subretinal Implant Application.Nanomaterials (Basel, Switzerland) · 2023Article
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2 authors.
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Abstract
A reconfigurable Substrate-Integrated Waveguide (SIW) filter operating in the THz region was designed in this work. Two SIW resonators were coupled through a magnetic iris to form a second-order filter with a double-layer substrate. The first substrate was silicon of permittivity 11.9; on top of it, silicon dioxide of permittivity 3.9 was placed. The ground and upper plane were composed of gold plates. Graphene material was then used for the tunability of the filter. A thin graphene sheet was sandwiched between the silicon dioxide substrate and the upper gold plate. An external DC bias voltage was then applied to change the chemical potential of graphene, which, in turn, managed to change the operational center frequency of the filter within the range of 1.289 THz to 1.297 THz, which translated to a bandwidth range of 8 GHz. The second part of this work centered on changing the aspect ratio of the graphene patch to change the center frequency. It was observed that the frequency changed within the range of 1.2908 THz to 1.2929 THz, which gave a bandwidth of 2.1 GHz change.
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