Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Kristian Chavdarov Dimitrov"'
Autor:
Kristian Chavdarov Dimitrov, Yongshik Lee, Jae-Ho Youn, Chan-Uk Park, Seung Won Oh, Myoung-Soo Lee
Publikováno v:
IEEE Access, Vol 12, Pp 117934-117943 (2024)
In this study, we propose a sensor for partial discharge (PD) sensing based on an electrically small hybrid spiral antenna, measuring approximately 0.087 wavelengths in diameter at 200 MHz. The sensor utilizes a hybrid design that integrates equiangu
Externí odkaz:
https://doaj.org/article/6d4015775a014201bb50310ece09d9ee
Publikováno v:
Sensors, Vol 22, Iss 15, p 5527 (2022)
Dual-band branch-line couplers with arbitrary power-split ratios are presented. The use of crossed lines at the center of the dual-band coupler enables it to independently provide different power-split ratios to the two bands. Additionally, open stub
Externí odkaz:
https://doaj.org/article/73a4471913e04a4ab55dee75332a9d3c
Autor:
Kristian Chavdarov Dimitrov, Sanghun Song, Hyungjun Chang, Taejun Lim, Yongshik Lee, Byung-Jae Kwak
Publikováno v:
Sensors, Vol 20, Iss 21, p 6306 (2020)
Herein, a passive low-profile moisture sensor design based on radio frequency identification (RFID) technology is proposed. The sensor consists of an LC resonant loop, and the sensing mechanism is based on the fringing electric field generated by the
Externí odkaz:
https://doaj.org/article/de67c712626645d6ade050fb5858e63b
Publikováno v:
The Journal of Korean Institute of Electromagnetic Engineering and Science. 32:269-276
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::323ab86f607946a82577207c544b7bce
https://doi.org/10.5515/kjkiees.2021.32.3.269
https://doi.org/10.5515/kjkiees.2021.32.3.269
Autor:
Jeongwoo Park, Yongshik Lee, Kristian Chavdarov Dimitrov, Jihoon Jeong, Hweong-J. Kim, Byung-Wook Min
Publikováno v:
IEEE Antennas and Wireless Propagation Letters. 19:317-321
A novel circularly polarized waveguide slot array for satellite communications is proposed. The antenna features a unique feeding network and a unit cell that consists of a pair of simple T-shaped waveguide slots. The proposed configuration not only
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23201e08d209a5722bbc8a8d254c10cb
https://doi.org/10.1109/lawp.2019.2961386
https://doi.org/10.1109/lawp.2019.2961386
Autor:
Sanghun Song, Hyungjun Chang, Yongshik Lee, Taejun Lim, Byung Jae Kwak, Kristian Chavdarov Dimitrov
Publikováno v:
Sensors (Basel, Switzerland)
Sensors, Vol 20, Iss 6306, p 6306 (2020)
Sensors, Vol 20, Iss 6306, p 6306 (2020)
Herein, a passive low-profile moisture sensor design based on radio frequency identification (RFID) technology is proposed. The sensor consists of an LC resonant loop, and the sensing mechanism is based on the fringing electric field generated by the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::640376cd9f2e6c959f733bcf820f1bb0
http://europepmc.org/articles/PMC7663990
http://europepmc.org/articles/PMC7663990