Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Yejune Seo"'
Publikováno v:
Sensors, Vol 24, Iss 15, p 4838 (2024)
An array antenna for millimeter-wave communication and an array antenna for millimeter-wave sensing are designed and put together into one structure. Because millimeter-wave signals become weaker fast with the increasing distance and any kind of erro
Externí odkaz:
https://doaj.org/article/2ff46adff1624a9a93727341fcae7229
Publikováno v:
IEEE Access, Vol 11, Pp 80172-80180 (2023)
This paper presents an effective method to boost the RSSI, the received signal strength on a moving path of LoRa wireless networking without change in digital circuitry or power amplifiers. Replacing the wire antenna as the conventionally used sensor
Externí odkaz:
https://doaj.org/article/b80c954c642c4607b8b43ed447c7b532
Publikováno v:
Sensors, Vol 24, Iss 3, p 1018 (2024)
Radar systems are a type of sensor that detects radio signals reflected from objects located a long distance from transmitters. For covering a longer range and a higher resolution in the operation of a radar, a high-frequency band and an array antenn
Externí odkaz:
https://doaj.org/article/96cb8721b14147bc8fb16a5762f2139c
Publikováno v:
Sensors, Vol 23, Iss 4, p 1948 (2023)
Global and intercontinental networking relies on satellite communication. Its wireless communication system always has antennas and their feed assembly comprising waveguides. This makes the satellite payload heavy and costly. In this paper, a novel m
Externí odkaz:
https://doaj.org/article/ecc3191d7b144e71849b635925f4338c
Autor:
Junghyun Cho, Yejune Seo, Jihaeng Cho, Kyoung Youl Park, Joongki Park, Hosub Lee, Sungtek Kahng
Publikováno v:
Sensors, Vol 23, Iss 3, p 1173 (2023)
In this paper, a novel method is proposed to effectively reduce the size of a waveguide bandpass filter (BPF). Because the metallic cavities make the conventional waveguide end up with a large geometry, especially for high-order BPFs, very compact wa
Externí odkaz:
https://doaj.org/article/2484d23c292c4ddfaefa4b443ebf602a
Autor:
Yejune Seo, Inyeol Moon, Junghyun Cho, Yejin Lee, Jiyeon Jang, Morimoto Shohei, Kurosaki Toshifumi, Sungtek Kahng
Publikováno v:
Sensors, Vol 22, Iss 12, p 4523 (2022)
In this paper, a novel thin and flexible antenna is proposed for earbuds to gain an improvement in their wireless signal-sensing capability as a film-based artificial magnetic conductor (AMC) structure. As antenna designs for earbuds face challenges
Externí odkaz:
https://doaj.org/article/193b5de98f7141879a0162664a49ed6b
Publikováno v:
Sensors, Vol 22, Iss 11, p 3969 (2022)
In this paper, a novel chip antenna and its function in wireless connectivity are presented for Bluetooth (BLT) earphones. The chip antenna is a metamaterial so compact (3, that when it is mounted on the realistic PCB, it can be held in the enclosure
Externí odkaz:
https://doaj.org/article/d5cdada26a064fd092085d302220b2f3
Autor:
Munsu Jeon, Yejune Seo, Junghyun Cho, Changhyeong Lee, Jiyeon Jang, Yejin Lee, Hyung-Wook Kwon, Sungtek Kahng
Publikováno v:
Sensors, Vol 21, Iss 20, p 6830 (2021)
In this paper, an intuitive approach to assessing advantages of beamforming in 5G wireless communication is proposed as a novel try and practical demonstration of importance of alignment between the transmitter’s and receiver’s beams working in m
Externí odkaz:
https://doaj.org/article/f6f7c23d58e94c3daf100421d73b07c0
Publikováno v:
Sensors, Vol 21, Iss 13, p 4316 (2021)
In this paper, a new sensor is developed to estimate the dielectric constant of Cyclo Olefin Polymer (COP) film utilizable for 5G mobile phones’ multi-layered back-cover. It is featured by the electrical characterization of the thin layer of the CO
Externí odkaz:
https://doaj.org/article/23d4313cc0e247eca2a0bc0862cc0cdc
Autor:
Junghyun Cho, Yejune Seo, Jaewon Koh, Jiyeon Jang, Yejin Lee, Joong-ki Park, Ho-Sub Lee, Sungtek Kahng
Publikováno v:
The transactions of The Korean Institute of Electrical Engineers. 72:93-101
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1219c423029939799839605a8c64fd83
https://doi.org/10.5370/kiee.2023.72.1.93
https://doi.org/10.5370/kiee.2023.72.1.93