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학술지 Implementation of an in Vitro Exposure System for 28 GHz
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저자
이영승, Philip Ayiku Dzagbletey, 정재영, 전상봉, 이애경, 김남, 송성종, 최형도
발행일
202012
출처
ETRI Journal, v.42 no.6, pp.837-845
ISSN
1225-6463
출판사
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.2020-0169
협약과제
20HH3900, 복합 전파환경에서의 국민건강 보호 기반 구축 사업, 최형도
초록
The objective of this study was to implement an in vitro exposure system for 28혻GHz to investigate the biological effects of fifth-generation (5G) communication. A signal source of 28혻GHz for 5G millimeter-wave (MMW) deployment was developed, followed by a variable attenuator for antenna input power control. A power amplifier was also customized to ensure a maximum output power of 10혻W for high-power 28-GHz exposure. A 3-dB uniformity over the 80혻mm혻×혻80혻mm area that corresponds to four Petri dishes of three-dimensional cell cultures can be obtained using a customized choke-ring-type antenna. An infrared camera is employed for temperature regulation during exposure by adjusting the airflow cooling rate via real-time feedback to the incubator. The reported measurement results confirm that the input power control, uniformity, and temperature regulation for 28-GHz exposure were successfully accomplished, indicating the possibility of a wide application of the implemented in vitro exposure system in the fields of various MMW dose-response studies.
키워드
3D culture, exposure system, in vitro, integration, millimeter-wave, uniformity
KSP 제안 키워드
28 GHz, 3D Culture, 5G millimeter-wave, Cell Culture, Cooling Rate, Dose-response, Fifth Generation(5G), High power, Infrared camera, Input power, Power control(PC)
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