Modeling Plasmonic Antennas for the Millimeterwave & THz Range
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Date
2023-09-12
Publication Type
Journal Article
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yes
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Abstract
Plasmonic modulator antennas have been recently shown to be able to efficiently upmix millimeter and THz waves onto optical frequencies. In this article, we introduce a theory and equivalent circuit models for designing and optimizing plasmonic modulator antennas. The proposed model aims to improve the overall understanding of the experimentally found powerful antenna field enhancement (between the impinging field at the antenna and the field within the modulator). This enhancement has already been shown to be as high as 90'000 and allows to efficiently evaluate relevant figures of merit for antenna design and optimization. The effects of antenna design parameters are presented and discussed in detail. The accuracy of the suggested models is verified by rigorous numerical computation through field simulations. As a result, we propose optimized antenna structures and their parameters, and demonstrate their field enhancement capabilities.
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Publication status
published
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Book title
Volume
29 (5)
Pages / Article No.
8501115
Publisher
IEEE
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Edition / version
Methods
Software
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Date collected
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Subject
Electro-optic devices; THz antennas; Plasmonics; Field simulations; Equivalent circuit model; THz frequency; Wireless communications
Organisational unit
03974 - Leuthold, Juerg / Leuthold, Juerg
02635 - Institut für Elektromagnetische Felder / Institute of Electromagnetic Fields