Zobrazeno 1 - 10
of 141
pro vyhledávání: '"Soon-Soo Oh"'
Autor:
Dong-Woo Kim, Soon-Soo Oh
Publikováno v:
Sensors, Vol 24, Iss 9, p 2884 (2024)
In this paper, a volumetric Rotman lens antenna operating at 28 GHz is proposed. The design formula and procedure were derived for the 3-D Rotman lens antenna. The number of tilted beams is 3 × 3. The six rectangular blocks are assembled using a met
Externí odkaz:
https://doaj.org/article/921bd34bfc7047d493a795436ab73621
Publikováno v:
Electronics Letters, Vol 58, Iss 1, Pp 1-3 (2022)
Abstract This letter proposes a measurement technique for the relative phase of a 5G new radio (NR) signal. The total radiated power (TRP) is measured to evaluate wireless equipment. However, this cannot be implemented using the near‐field measurem
Externí odkaz:
https://doaj.org/article/88e241d7a4894444927be49c45cfa1fb
Publikováno v:
Journal of Electromagnetic Engineering and Science, Vol 21, Iss 1, Pp 1-7 (2021)
In this paper, we present experimental transmittance data at 0.75, 1, 2, 3, 4.5, 6, 10, 18, and 24 GHz from urban and rural environments. All measurements were performed under line-of-sight (LoS) conditions. Reach distances were extracted using the m
Externí odkaz:
https://doaj.org/article/f43aa780f78445d5a3c79554a823b67e
Publikováno v:
IEEE Access, Vol 9, Pp 138571-138579 (2021)
We investigated the impact of window penetration loss (WinPL) on the frequency dependence of building entry loss (BEL) from 3.5 to 24 GHz. The WinPL characteristics of an ideal double-glazed glass and an actual double-glazed window were simulated and
Externí odkaz:
https://doaj.org/article/aab0d11877774290ad5e9bc91e30d1cb
Publikováno v:
International Journal of Antennas and Propagation, Vol 2021 (2021)
Wireless communication technologies are expected to become essential in future self-driving vehicles. This study presents an antenna for vehicle wireless communication with a bandwidth of 75 MHz at a Wireless Access in Vehicular Environment frequency
Externí odkaz:
https://doaj.org/article/7701d43a8ba84015b1619418a7864830
Publikováno v:
IEEE Antennas and Wireless Propagation Letters. 21:173-177
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c4555cb3d64264b5f310ddc6b823f6d
https://doi.org/10.1109/lawp.2021.3123278
https://doi.org/10.1109/lawp.2021.3123278
Publikováno v:
International Journal of Antennas and Propagation, Vol 2018 (2018)
Communication between moving vehicles is very important for safety. In this paper, a bidirectional antenna that can be installed inside a vehicle is proposed and tested in a real vehicular environment at 5.8 GHz. The forward link and backward link se
Externí odkaz:
https://doaj.org/article/6d70aafb7284429fa7548936f50930e6
Publikováno v:
The Journal of Korean Institute of Electromagnetic Engineering and Science. 32:943-950
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80ec16224a1e1e58bf6484394176ad77
https://doi.org/10.5515/kjkiees.2021.32.11.943
https://doi.org/10.5515/kjkiees.2021.32.11.943
Publikováno v:
2022 International Symposium on Antennas and Propagation (ISAP).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41b4739da95fa55461930d54a14255d7
https://doi.org/10.1109/isap53582.2022.9998812
https://doi.org/10.1109/isap53582.2022.9998812
Autor:
Dong-Woo Kim, Soon-Soo Oh
Publikováno v:
International Journal of Antennas and Propagation, Vol 2017 (2017)
The design and fabrication of a coupler with three reconfigurable output ports have been proposed. The output ports of the proposed coupler can be adjusted by varying the number of shorting pins. An antenna with a reconfigurable beamwidth has been al
Externí odkaz:
https://doaj.org/article/fb6fd08ac71643da906c069546fd3e3a