期刊
TECHNICAL PHYSICS LETTERS
卷 -, 期 -, 页码 -出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S1063785023040028
关键词
phased-array antennas; graphene; far-IR frequency range; plasmon resonance
The purpose of this study is to model the characteristics of phased-array antennas composed of graphene-based nanoribbon elements with different numbers of emitters and analyze their controllability under variable chemical potential in the terahertz and far-IR frequency ranges using the CST Studio Suite 2021 software package.
The purpose of this study is to model the characteristics (scattering matrix element |S-11| and 2D and 3D radiation patterns (RPs)) of phased-array antennas (PAAs) composed of graphene-based nanoribbon elements with different numbers of emitters (N = 16, 64, and 256) and analyze their controllability under variable chemical potential (application of an external electric field) in the terahertz and far-IR frequency ranges using the CST Studio Suite 2021 software package. The characteristics (scattering matrix and 2D and 3D RPs) of a graphene antenna and a PAA composed of graphene nanoribbon elements with a different number of emitters (N = 16, 64, and 256) and the controllability of the PAA depending on the chemical potential (mu(c) = 0.3, 0.7, and 1 eV) in the frequency range f = 6-40 THz are simulated using the CST Studio Suite 2021 software. As follows from the electrodynamic simulation results, a change in the graphene chemical potential leads to changes in the PAA characteristics (half-power main lobe width, its amplitude, side-lobe level, direction of the RP main lobe, and operating frequencies). Phased-array antennas composed of rectangular graphene nanoribbon elements can be electrically controlled with frequency scanning by changing chemical potential mu(c) ( by applying an external electric field) in the terahertz, far-IR, and mid-IR frequency ranges.
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