Zobrazeno 1 - 10
of 102
pro vyhledávání: '"Ick-jae Yoon"'
Publikováno v:
IEEE Access, Vol 12, Pp 164803-164810 (2024)
A new actuation technique is introduced for overcoming the complexity and radiation performance degradation issues of actuators-based reconfigurable antennas. We employ shape memory alloy (SMAlloy) spring actuators to control the positioning of the f
Externí odkaz:
https://doaj.org/article/6e5375485ebb436c8a60c310d65aa195
Autor:
Hyun Gyu Jang, Dong Yun Jung, Yong Ha Lee, Doohyung Cho, Kun Sik Park, Jong-Won Lim, Wonkyo Kim, Joomin Park, Ick-Jae Yoon
Publikováno v:
Journal of Electromagnetic Engineering and Science, Vol 23, Iss 3, Pp 251-258 (2023)
In this study, a low-temperature co-fired ceramic (LTCC)-based direct current (DC)-DC converter is proposed for reducing stray inductance and mitigating electromagnetic interference. The dominant radiating loop of the proposed LTCC-based DC-DC conver
Externí odkaz:
https://doaj.org/article/9068c70eb5ed4f63bbb04566028429f0
Publikováno v:
Applied Sciences, Vol 14, Iss 9, p 3644 (2024)
In this paper, we propose a novel approach to realize a compact and highly isolated dual-polarized holographic antenna using a pillbox feeding structure. The proposed antenna feeds dual orthogonal surface waves with low distortion phase distribution
Externí odkaz:
https://doaj.org/article/979acd6ece5445559831db4813b8e091
Publikováno v:
IEEE Access, Vol 11, Pp 137521-137528 (2023)
This paper presents a high-frequency model of a brushless DC motor to predict its radiated emission (RE) through high-frequency simulations of electromagnetic fields. The main RE noise path of the device-under-test (DUT) motor is specified as the sta
Externí odkaz:
https://doaj.org/article/e04675f9d3a4420e9abc55c203d154fa
Publikováno v:
IEEE Access, Vol 11, Pp 119779-119787 (2023)
This study proposes a low-profile, electrically small military VHF/UHF communication ferrite-loaded antenna for an integrated mast (IM). We realized a relatively lighter weight antenna that is advantageous for IM mounting by utilizing a minimum numbe
Externí odkaz:
https://doaj.org/article/b2d542fd66a54d998cc926992067866e
Publikováno v:
Applied Sciences, Vol 14, Iss 5, p 2068 (2024)
A single-feed broadband quasi-isotropic antenna was designed for non-line-of-sight (NLOS) wireless sensor networks. The proposed antenna is based on a combination of fork-shaped crossed dipoles. It shows the broadband of quasi-isotropic radiation cha
Externí odkaz:
https://doaj.org/article/42a146f9e6d642cfadafaf8630ece53e
Publikováno v:
Applied Sciences, Vol 13, Iss 18, p 10523 (2023)
In this paper, we propose a ferrite-loaded inverted microstrip line (IML)-based artificial magnetic conductor (AMC) with a novel design that can provide complete magnetic shielding at the backside of the transmitting (Tx) coil while slightly improvin
Externí odkaz:
https://doaj.org/article/7e24f44ae63144dab37445212e2662ab
Publikováno v:
IEEE Access, Vol 9, Pp 146296-146317 (2021)
Quasi-isotropic antennas are promising candidates due to their applications in modern communication systems, where full spatial coverage and/or uniform signal reception is required. In this work, an in-depth review of quasi-isotropic antennas is pres
Externí odkaz:
https://doaj.org/article/88e76a17ab1c4078911100cb836f32be
Publikováno v:
IEEE Access, Vol 8, Pp 27067-27073 (2020)
A 3D printed, low-profile, electrically small antenna with a quasi-isotropic radiation pattern is presented herein. It is composed of an electric meandered dipole antenna, and the extended arcs from the meander line mimicking the current flow of the
Externí odkaz:
https://doaj.org/article/74808c0f12184a54bd884524c21600bc
Publikováno v:
IEEE Access, Vol 8, Pp 145586-145592 (2020)
In this work, a 2-by-2 array of a low-profile EBG ground plane is used as a means of sustaining the radiation performance of a 900-MHz LoRa antenna that could be installed at various construction sites. The proposed semi-circles added mushroom (SAM)
Externí odkaz:
https://doaj.org/article/76377dfd72104be4a4627385b59c7670