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http://dx.doi.org/10.4218/etrij.2020-0169

Implementation of an in vitro exposure system for 28 GHz  

Lee, Young Seung (Radio and Satellite Research Division, Electronics and Telecommunications Research Institute)
Dzagbletey, Philip Ayiku (Department of Electrical and Information Engineering, Seoul National University of Science and Technology)
Chung, Jae-Young (Department of Electrical and Information Engineering, Seoul National University of Science and Technology)
Jeon, Sang Bong (Radio and Satellite Research Division, Electronics and Telecommunications Research Institute)
Lee, Ae-Kyoung (Radio and Satellite Research Division, Electronics and Telecommunications Research Institute)
Kim, Nam (Department of Computer and Communication Engineering, Chungbuk National University)
Song, Seong Jong (Management Planning Office)
Choi, Hyung-Do (Radio and Satellite Research Division, Electronics and Telecommunications Research Institute)
Publication Information
ETRI Journal / v.42, no.6, 2020 , pp. 837-845 More about this Journal
Abstract
The objective of this study was to implement an in vitro exposure system for 28 GHz to investigate the biological effects of fifth-generation (5G) communication. A signal source of 28 GHz 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 10 W for high-power 28-GHz exposure. A 3-dB uniformity over the 80 mm × 80 mm 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.
Keywords
3D culture; exposure system; in vitro; integration; millimeter-wave; uniformity;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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