Byungje Lee
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Previous Organizations / Institutes
The organizations / institutes from the scholar's other articles in the past ten years
Research Subjects
Byungje Lee has a total of 87 co-authors. Here are the top co-authors by number of shared publications:
- Chang Won Jung
Department of Semiconductor Engineering, Seoul National University of Science and Technology, Seoul, South Korea
9 shared publications Frances J. Harackiewicz
Department of Electrical and Computer Engineering, Southern Illinois University Carbondale, Carbondale, IL 62901-6603
9 shared publicationsMyun-Joo Park
Department of Wireless Communications Engineering, Kwangwoon University, 447-1, Wolgye-Dong, Nowon-Gu, Seoul 139-701, Republic of Korea
9 shared publications- Myun-Joo Park
Department of Electronics Convergence Engineering, Kwangwoon University, Seoul 139-701, South Korea
8 shared publications Hanphil Rhyu
Department of Wireless Communications Engineering, Kwangwoon University, 447-1, Wolgye-Dong, Nowon-Gu, Seoul 139-701, Korea
7 shared publicationsF.J. Harackiewicz
Department of Electrical and Computer Engineering, Southem Illinois University, Carbondale, IL, USA
5 shared publications
Latest Publications
- Open Access
- 31 May 2022
- Published by Korean Institute of Electromagnetic Engineering and Science in Journal of Electromagnetic Engineering and Science
- Vol. 22 (3) , 296-301
Wideband Antenna for High-Frequency 5G Wireless Communication
- 31 May 2022
- Published by Korean Institute of Electromagnetic Engineering and Science in Journal of Electromagnetic Engineering and Science
- Vol. 22 (3) , 296-301
Open AccessWideband Antenna for High-Frequency 5G Wireless Communication
- 27 April 2021
- Published by Springer Nature in Journal of Electrical Engineering & Technology
- Vol. 16 (5) , 2829
Correction to: Planar Saltwater Analysis for Transparent Electromagnetic Shielding Applications
- 27 April 2021
- Published by Springer Nature in Journal of Electrical Engineering & Technology
- Vol. 16 (5) , 2829
Correction to: Planar Saltwater Analysis for Transparent Electromagnetic Shielding Applications
- 19 April 2021
- Published by Springer Nature in Journal of Electrical Engineering & Technology
- Vol. 16 (5) , 2695-2700
Planar Saltwater Analysis for Transparent Electromagnetic Shielding Applications
- 19 April 2021
- Published by Springer Nature in Journal of Electrical Engineering & Technology
- Vol. 16 (5) , 2695-2700
Planar Saltwater Analysis for Transparent Electromagnetic Shielding Applications
- 30 September 2019
- Published by Springer Nature in Journal of Electrical Engineering & Technology
- Vol. 15 (1) , 37-42
Compact Wideband Internal Antenna Using Epsilon Negative Zeroth-Order Resonator With CPWG-Fed for UHD-TV Applications
- 30 September 2019
- Published by Springer Nature in Journal of Electrical Engineering & Technology
- Vol. 15 (1) , 37-42
Compact Wideband Internal Antenna Using Epsilon Negative Zeroth-Order Resonator With CPWG-Fed for UHD-TV Applications
- 28 August 2019
- Published by Springer Nature in Journal of Electrical Engineering & Technology
- Vol. 14 (6) , 2427-2436
Internal Reconfigurable Dipole–Loop Antenna Array for High Reception Rate of Wideband UHD-TV Applications
- 28 August 2019
- Published by Springer Nature in Journal of Electrical Engineering & Technology
- Vol. 14 (6) , 2427-2436
Internal Reconfigurable Dipole–Loop Antenna Array for High Reception Rate of Wideband UHD-TV Applications
- 1 November 2018
- Published by Elsevier in Fusion Engineering and Design
- Vol. 136, 1505-1509
Traveling-wave antenna for the current drive using the fast wave in the lower hybrid-frequency range in the Versatile Experiment Spherical Torus (VEST)
- 1 November 2018
- Published by Elsevier in Fusion Engineering and Design
- Vol. 136, 1505-1509
Traveling-wave antenna for the current drive using the fast wave in the lower hybrid-frequency range in the Versatile Experiment Spherical Torus (VEST)
- 1 August 2018
- Published by AIP Publishing in Physics of Plasmas
- Vol. 25 (8) , 082511
Coupling study of fast wave near the lower hybrid frequency range in VEST
The fast wave branch in lower hybrid resonance frequency range, especially higher than , has been proposed for the central or off-axis electron heating and current drive in higher density plasmas than the slow wave scheme. With a higher cutoff density for launching, efficient coupling between the antenna and plasma would be a priority issue for feasibility. The fast wave coupling characteristics with the wave frequency, gap size, and electron density profile of the Versatile Experiment Spherical Torus (VEST) device are investigated using a commercial full wave FEM solver, COMSOL. Maximum coupling between combline antenna and plasma is expected to be at ∼500 MHz with . The coupled power ranges from 90% to 60% in the gap size between 0.5 cm and 1.5 cm. The relative power fraction of the fast wave is larger than 80% at these conditions. The propagation and coupling power of the fast wave is crucially dependent on the plasma density window by launching and confluence densities. Initial experimental result with low power shows that measured coupling efficiency starts to increase as electron density in front of antenna attains the level of cutoff density for the fast wave propagation. It varies from 30% to 90% with the edge density evolution, which is consistent with the coupling simulation using the measured edge density profile. Coupling simulation verified in this study will make it possible to predict and analyze the coupling characteristics of future lower hybrid fast wave experiments.- 1 August 2018
- Published by AIP Publishing in Physics of Plasmas
- Vol. 25 (8) , 082511
Coupling study of fast wave near the lower hybrid frequency range in VEST
The fast wave branch in lower hybrid resonance frequency range, especially higher than , has been proposed for the central or off-axis electron heating and current drive in higher density plasmas than the slow wave scheme. With a higher cutoff density for launching, efficient coupling between the antenna and plasma would be a priority issue for feasibility. The fast wave coupling characteristics with the wave frequency, gap size, and electron density profile of the Versatile Experiment Spherical Torus (VEST) device are investigated using a commercial full wave FEM solver, COMSOL. Maximum coupling between combline antenna and plasma is expected to be at ∼500 MHz with . The coupled power ranges from 90% to 60% in the gap size between 0.5 cm and 1.5 cm. The relative power fraction of the fast wave is larger than 80% at these conditions. The propagation and coupling power of the fast wave is crucially dependent on the plasma density window by launching and confluence densities. Initial experimental result with low power shows that measured coupling efficiency starts to increase as electron density in front of antenna attains the level of cutoff density for the fast wave propagation. It varies from 30% to 90% with the edge density evolution, which is consistent with the coupling simulation using the measured edge density profile. Coupling simulation verified in this study will make it possible to predict and analyze the coupling characteristics of future lower hybrid fast wave experiments.- 10 October 2016
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 4, 1-3
RFID Tag Antenna Moutable on Metallic Plates
Asia-Pacific Microwave Conference Proceedings, 2005, APMC 2005, vol. 4, 4-7. doi: 10.1109/APMC.2005.1606887 ©2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. This Article is brought to you for free and open access by the Department of Electrical and Computer Engineering at OpenSIUC. It has been accepte
- 10 October 2016
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 4, 1-3
RFID Tag Antenna Moutable on Metallic Plates
Asia-Pacific Microwave Conference Proceedings, 2005, APMC 2005, vol. 4, 4-7. doi: 10.1109/APMC.2005.1606887 ©2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. This Article is brought to you for free and open access by the Department of Electrical and Computer Engineering at OpenSIUC. It has been accepte
- Open Access
- 23 February 2015
- Published by Wiley in International Journal of Antennas and Propagation
- Vol. 2015, 1-8
A Compact Dual-Band RFID Tag Antenna Mountable on Metallic Objects
A compact (50 × 50 × 4 mm3) dual-band radio frequency identification (RFID) tag antenna mountable on metallic objects is proposed for the ultra-high frequency (UHF) band (917∼923.5 MHz) and the microwave (MW) band (2.4∼2.45 GHz). With the proximity-coupled feed loop, the proposed antenna consists of two symmetric planar inverted-F antenna (PIFA) elements for the UHF band passive tag and a meander microstrip patch antenna for the MW band active tag. The performance of the proposed antenna is verified by mounting it on the different sizes of the metallic object. Furthermore, the passive tag antenna in the UHF band furthermore may be used for energy harvesting techniques to improve the lifetime of the active tag in the MW band. The measured maximum read range is 5.50 m in the UHF band and 14.15 m in the MW band when the proposed tag antenna is mounted on the metallic objects. The total efficiency for all operating frequency bands is higher than 50%. High isolation (>12 dB) between tag antennas in the UHF band and the MW band is achieved.
- 23 February 2015
- Published by Wiley in International Journal of Antennas and Propagation
- Vol. 2015, 1-8
Open AccessA Compact Dual-Band RFID Tag Antenna Mountable on Metallic Objects
A compact (50 × 50 × 4 mm3) dual-band radio frequency identification (RFID) tag antenna mountable on metallic objects is proposed for the ultra-high frequency (UHF) band (917∼923.5 MHz) and the microwave (MW) band (2.4∼2.45 GHz). With the proximity-coupled feed loop, the proposed antenna consists of two symmetric planar inverted-F antenna (PIFA) elements for the UHF band passive tag and a meander microstrip patch antenna for the MW band active tag. The performance of the proposed antenna is verified by mounting it on the different sizes of the metallic object. Furthermore, the passive tag antenna in the UHF band furthermore may be used for energy harvesting techniques to improve the lifetime of the active tag in the MW band. The measured maximum read range is 5.50 m in the UHF band and 14.15 m in the MW band when the proposed tag antenna is mounted on the metallic objects. The total efficiency for all operating frequency bands is higher than 50%. High isolation (>12 dB) between tag antennas in the UHF band and the MW band is achieved.
- Open Access
- 1 January 2014
- Published by Wiley in International Journal of Antennas and Propagation
- Vol. 2014, 1-6
Enhanced Loop Structure of NFC Antenna for Mobile Handset Applications
A new structure of an NFC loop antenna for mobile handset applications is proposed. The proposed antenna consists of conventional loop elements and a parasitic loop embedded capacitor to enhance its performance. Although the sintered ferrite sheets with higher relative permeabilityhave been used to reduce the performance deterioration due to the eddy current on the battery pack of a mobile handset, their costs are high, and they are considerably breakable. In this paper, with the proposed structure, we effectively enhance the performance of an NFC loop antenna by employing the ferrite-polymer composite with lower relative permeability.- 1 January 2014
- Published by Wiley in International Journal of Antennas and Propagation
- Vol. 2014, 1-6
Open AccessEnhanced Loop Structure of NFC Antenna for Mobile Handset Applications
A new structure of an NFC loop antenna for mobile handset applications is proposed. The proposed antenna consists of conventional loop elements and a parasitic loop embedded capacitor to enhance its performance. Although the sintered ferrite sheets with higher relative permeabilityhave been used to reduce the performance deterioration due to the eddy current on the battery pack of a mobile handset, their costs are high, and they are considerably breakable. In this paper, with the proposed structure, we effectively enhance the performance of an NFC loop antenna by employing the ferrite-polymer composite with lower relative permeability.