Compact metamaterial-enclosed wireless sensors with subtle perception of internal physical events

Autor:	Haiyu Harry Huang, Cheng-Hsien Hung, Pai-Yen Chen
Rok vydání:	2015
Předmět:	Physics Physics and Astronomy (miscellaneous) business.industry Acoustics Cloak Volume (computing) Metamaterial Electrically small antenna Optics Modal Wireless business Wireless sensor network Metamaterial antenna
Zdroj:	Applied Physics Letters. 107:194101
ISSN:	1077-3118 0003-6951
DOI:	10.1063/1.4935207
Popis:	We propose and theoretically investigate a metamaterial/metasurface-enclosed electrically small antenna (ESA), perfectly matched to the input stage of a radio-frequency circuitry. By tailoring the effective-medium properties of a low-profile metamaterial/metasurface cloak, the electromagnetic power can be maximally delivered to a 50 Ω load in a narrow frequency window, efficiently utilizing the available design volume. This ESA system, although having a small modal volume, is highly resonant, and its resonance frequency is sensitively shifted by material and volume perturbations within the cloaked region. We envision that this cloaked ESA system may make efficient and miniaturized wireless sensor nodes, probing internal information (e.g., liquid-level sensor) for various medical, environmental, and industrial applications.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::19616d713543829f63b5c67f976e97c6 https://doi.org/10.1063/1.4935207 Zobrazit plný text záznamu