Zobrazeno 1 - 10
of 238
pro vyhledávání: '"Jung-Mu Kim"'
Publikováno v:
IEEE Access, Vol 12, Pp 106770-106780 (2024)
We present a novel concept of a millimeter-wave patch antenna that integrates the functions of a dual-polarized antenna and a capacitive proximity sensor to detect the state of a hand grip on a smartphone and compensate for the effect. The antenna ha
Externí odkaz:
https://doaj.org/article/309d78ef87e04b758c90c1133b3b0fb2
Publikováno v:
IEEE Access, Vol 12, Pp 11664-11673 (2024)
In this paper, a switchable multi-functional wideband metasurface device based on vanadium dioxide (VO2) in the terahertz (THz) region is numerically proposed. By controlling the phase of VO2, the functions of the proposed structure can be reversibly
Externí odkaz:
https://doaj.org/article/ba78708621b342c2a9627c3ae99f1405
Autor:
Zabdiel Brito-Brito, Jesús Salvador Velázquez-González, Fermín Mira, Antonio Román-Villarroel, Xavier Artiga, Satyendra Kumar Mishra, Francisco Vázquez-Gallego, Jung-Mu Kim, Eduardo Fontana, Marcos Tavares de Melo, Ignacio Llamas-Garro
Publikováno v:
Chemosensors, Vol 12, Iss 9, p 185 (2024)
In this manuscript, we present in detail the design and implementation of the hardware and software to produce a standalone wireless sensor node, called SensorQ system, for the detection of a toxic chemical agent. The proposed wireless sensor node pr
Externí odkaz:
https://doaj.org/article/2572810951d4409192dfab5507ed3124
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-13 (2022)
Abstract Reconfigurable metasurfaces (RMSs) that enable the switching function of absorption and polarization conversion have attracted increasing attention. However, the design of RMSs to achieve wideband and high efficiency for both absorption and
Externí odkaz:
https://doaj.org/article/e907262892054df083d62eacd38642e5
Autor:
Thi Minh Nguyen, Thi Kim Thu Nguyen, Duy Tung Phan, Dac Tuyen Le, Dinh Lam Vu, Thi Quynh Hoa Nguyen, Jung-Mu Kim
Publikováno v:
IEEE Access, Vol 10, Pp 92097-92104 (2022)
Polarization-control devices have attracted considerable interest, however, most of the polarization converters operating at lower frequencies have a heavy design and narrow bandwidth which limits their practical applications. Here we report a simple
Externí odkaz:
https://doaj.org/article/5ce8cb93459748ec878c671d1120b220
Publikováno v:
AIP Advances, Vol 12, Iss 11, Pp 115002-115002-9 (2022)
Polarization converters play an important role in practical applications to manipulate the electromagnetic wave. However, the development of a polarization converter that possesses both high conversion efficiency and a wide frequency band is very cha
Externí odkaz:
https://doaj.org/article/75f4a5e318ef4fd795b50118cb766cf2
Autor:
Adonias Luna Pereira da Silva, Sérgio Campello Oliveira, Gustavo Oliveira Cavalcanti, Manoel Alves de Almeida Neto, Maria Renata Nascimento dos Santos, Ignacio Llamas-Garro, Jung-Mu Kim, Gabriel de Freitas Fernandes, Eduardo Fontana
Publikováno v:
Journal of Microwaves, Optoelectronics and Electromagnetic Applications, Vol 20, Iss 1, Pp 158-172 (2021)
Abstract Recently a surface plasmon resonance (SPR) optical sensor, based on the Otto configuration — the Otto chip — has been developed. One essential step in the quality control of the fabrication process is characterization of the active regio
Externí odkaz:
https://doaj.org/article/8b7ea16d97284c11b28e8c652f608aa1
Publikováno v:
Sensors, Vol 22, Iss 23, p 9490 (2022)
In this study, an electrostatically driven vertical MEMS actuator was designed using a hollow square electrode. To attain vertical actuation, a hollow square-shaped electrode was designed on the glass substrate. The silicon proof mass, containing a s
Externí odkaz:
https://doaj.org/article/8fec162996cb4620b9d38d79eea4551e
Autor:
Sung-min Sim, Yeonsu Lee, Hye-Lim Kang, Youngsuk Hwang, Chi-Hyun Park, Ignacio Llamas-Garro, Jung-Mu Kim
Publikováno v:
Micro and Nano Systems Letters, Vol 6, Iss 1, Pp 1-6 (2018)
Abstract In this paper, a stress and fracture study, occurring during the chemical mechanical polishing (CMP) of anodically bonded substrates is presented. The samples contain glass pillars, used to form the glass cavities and a silicon substrate sea
Externí odkaz:
https://doaj.org/article/074b0d2080ea4bdf8378ed2925983c64
Autor:
Thanh Nghia Cao, Minh Tam Nguyen, Huu Lam Phan, Duc Dung Nguyen, Dinh Lam Vu, Thi Quynh Hoa Nguyen, Jung-Mu Kim
Publikováno v:
International Journal of RF and Microwave Computer-Aided Engineering. 2023:1-11
Developing a millimeter-wave (mm-wave) antenna that enables wide bandwidth with its operating band covering the entire global 5G spectrum is highly desirable but very challenging for achieving both compact size and high-performance antenna. Herein, t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7a526934852f0884e0f8487435bba43
https://doi.org/10.1155/2023/9938824
https://doi.org/10.1155/2023/9938824