한국전자파학회논문지 (The Journal of Korean Institute of Electromagnetic Engineering and Science)

About The Journal of Korean Institute of Electromagnetic Engineering and Science

JKIEES (The Journal of Korean Institute of Electromagnetic Engineering and Science) was launched in 1996 and has been published Monthly by the Korean Institute of Electromagnetic Engineering and Science. It was selected as a candidate journal to be registered with National Research Foundation of Korea and finally registered with the Foundation in 2004. Total of the articles in our journal are indexed in DOI/CrossRef, Google Scholar, and EBSCO. For a period of 16 years, about 2,300 excellent papers have been published by our journal. JKIEES has posted papers largely on profound research of antennas, microwave engineering, EMI/EMC, and applied electromagnetics. Its fields of contributed paper also have been expanded into diverse areas such as wireless communication systems, spectrum engineering, RF systems, electromagnetic materials, radar and radio application, and electromagnetic scattering and imaging. Since 2004, JKIEES has encouraged contributions from authors whose papers were recommended as excellent papers by academic conference heads and posted their papers in featured sessions.
특집논문/SPECIAL EDITION

Aug 31, 2021

Design of a Dual-Loop Array Antenna with Improved Isolation and Durability Characteristics
격리도 및 내구성이 개선된 X대역 이중루프 배열 안테나 설계

Doyoung Jang, Sungsik Wang, JoungMyoung Joo, Hosung Choo 장도영, 왕성식, 주정명, 추호성

J. Korean Inst. Electromagn. Eng. Sci. 2021;32(8):675-680.
https://doi.org/10.5515/KJKIEES.2021.32.8.675

Here, we propose an X-band dual-loop patch array with improved mutual coupling and durability. To reduce the radiator size and improve the bandwidth characteristics, individual elements of the proposed array antenna employ a dual-loop patch antenna that includes an indirectly fed structure. The proposed antenna includes a via cavity structure, which is advantageous for improving the isolation characteristics durability. To verify the performance of the proposed antenna, the measurement results are compared to the simulation results using FEKO, ...
논문/REGULAR PAPERS

Aug 31, 2021

CPW-Fed super-Wideband In-Building Repeater Antenna Design for Wireless Communication Bands
무선통신 주파수 대역에서 운용할 수 있는 CPW 급전 초광대역 In-Building 중계기 안테나 설계

Seong-Hun Kim, Ji-Hwan Ko 김성훈, 고지환

J. Korean Inst. Electromagn. Eng. Sci. 2021;32(8):681-689.
https://doi.org/10.5515/KJKIEES.2021.32.8.681

In this study, a super-wideband (SWB) in-building repeater antenna for mobile communication bands (0.8~0.9 GHz, 1.7~1.8 GHz, 1.9~2.1 GHz, 2.5~2.6 GHz, 3.4~3.7 GHz, 26.5~28.9 GHz), WLAN bands (2.4 GHz, 5.1~5.8 GHz), and ISM bands(2.4~2.5 GHz, 5.7~5.8 GHz) is proposed. The antenna is implemented in CPW feeding, a polygonal radiation patch, and slots on an FR4 substrate (dielectric constant= 4.4, thickness= 1.6 mm). The operating frequencies of the fabricated antenna are 0.83~15.6 GHz and 24.6~30.0 GHz, which meet a 10 dB return loss. In particula...
논문/REGULAR PAPERS

Aug 31, 2021

Design of a 3D T-Shaped Dipole Antenna Inspired by Origami and Kirigami Theory
종이접기와 키리가미 이론에 기반한 3차원 T-자형 다이폴 안테나 설계

Dohyun Kim, Gyoungdeuk Kim, Hyunmin Jeong, Woohyeok Choi, Nohgyeom Ha, Myeongha Hwang, Sangkil Kim 김도현, 김경득, 정현민, 최우혁, 하노겸, 황명하, 김상길

J. Korean Inst. Electromagn. Eng. Sci. 2021;32(8):690-698.
https://doi.org/10.5515/KJKIEES.2021.32.8.690

In this study, the design of a 3D foldable T-shaped dipole antenna inspired by origami and kirigami theory is presented. The origami- and kirigami-inspired techniques map 2D to 3D space. Moreover, the lamina emergent torsional (LET) joint is designed to fold the planar structure. The proposed antenna, including the LET joint, is printed on a planar 0.5 mm thick FR4 substrate. The proposed antenna is fed by a capacitively coupled microstrip line to achieve a 20 % fractional bandwidth (2.7~3.3 GHz), with a measured antenna gain value of 6.5 dBi. ...
논문/REGULAR PAPERS

Aug 31, 2021

Ultra-Wideband Cavity-Backed Four-Arm Sinuous Antenna with Low Height and Uniform Gain Characteristics
낮은 안테나 높이 및 균일한 이득 특성을 갖는 초광대역 네 개의 팔을 갖는 후방 공동 시뉴어스 안테나

Donghyun Kim, Chan Yeong Park, Youngwan Kim, Hyun Kim, Young Joong Yoon 김동현, 박찬영, 김영완, 김현, 윤영중

J. Korean Inst. Electromagn. Eng. Sci. 2021;32(8):699-707.
https://doi.org/10.5515/KJKIEES.2021.32.8.699

In this study, an ultra-wideband cavity-backed four-arm sinuous antenna with low height and wide gain bandwidth is proposed. To reduce the antenna height, a feeding structure is applied with a coaxial bundle and two-port balun. In addition, a multi-layer radio absorber and metallic cavity are applied to obtain certain characteristics, such as a unidirectional radiation pattern, low profile, and stable reflection coefficient. Additionally, a radiator with low input impedance is applied for a wide gain bandwidth. The proposed antenna operates at ...
논문/REGULAR PAPERS

Aug 31, 2021

3.5 GHz High-Efficiency Asymmetric Doherty Power Amplifier Design Using a Complex Combining Load
복소결합부하를 이용한 3.5 GHz 대역의 고효율 비대칭 도허티 전력증폭기 설계

Joosung Kim, Woojin Choi, Youngchan Choi, Hansik Oh, Youngoo Yang 김주성, 최우진, 최영찬, 오한식, 양영구

J. Korean Inst. Electromagn. Eng. Sci. 2021;32(8):708-716.
https://doi.org/10.5515/KJKIEES.2021.32.8.708

In this study, a high-efficiency asymmetric Doherty power amplifier (DPA) based on a complex combining load (CCL) is presented. The CCL method extends the range of output back-off (OBO). This article provides a graphical design method using the Smith chart for the CCL-DPA load network. The proposed asymmetric DPA is designed using 6 and 10 W GaN-HEMTs for carrier and peaking amplifiers, respectively. With 3.5～3.6 GHz continuous-wave signal excitations, the implemented asymmetric CCL DPA exhibits a DE of 60.0～64.7 % and a PAE of 54.8～59.9 ...
논문/REGULAR PAPERS

Aug 31, 2021

A Spectrum-Sharing Policy to Implement Effective Local 5G for Smart Factories
스마트공장용 로컬 5G의 효과적 도입을 위한 공동사용정책방안

Youngmun Kim, Young Joong Yoon 김영문, 윤영중

J. Korean Inst. Electromagn. Eng. Sci. 2021;32(8):717-723.
https://doi.org/10.5515/KJKIEES.2021.32.8.717

In this study, interference simulations are performed between the local 5G service and ultra-wideband sensors in a smart factory environment. Moreover, the necessity of introducing various interference determination criteria, such as the duty cycle and application of interference avoidance technology, in addition to the existing interference probability is evaluated. This study also suggests improvements in both the technology and policy for an effective introduction of local 5G after carefully reviewing cognitive ratio, automatic frequency coo...
논문/REGULAR PAPERS

Aug 31, 2021

Modeling and Design of a High-Altitude Electromagnetic Pulse Generator using Double RC Branch Circuits
이중 RC 브랜치 회로를 활용한 고고도 전자기파 펄스 발생기의 등가회로 모델링 및 설계

Jaesik Moon, Jong Hwa Kwon, Eakhwan Song 문재식, 권종화, 송익환

J. Korean Inst. Electromagn. Eng. Sci. 2021;32(8):724-733.
https://doi.org/10.5515/KJKIEES.2021.32.8.724

In this study, an equivalent circuit model of a double exponential pulse generator used as a noise source in a high-altitude electromagnetic pulse (HEMP) conductive disturbance immunity test is proposed. Based on the proposed models, a design methodology for a double exponential pulse generator is presented with various source pulse requirements based on the HEMP conductive disturbance immunity test. To design the proposed equivalent circuit model, the relationship between the equivalent circuit model and source pulse requirements is analyzed a...
논문/REGULAR PAPERS

Aug 31, 2021

Designing a Signal Processing Method for the Short-Range Target Tracking Mode of Airborne Radars
항공기 레이다의 근접 표적 추적 모드 신호처리 설계

Sung Yeong Park 박성영

J. Korean Inst. Electromagn. Eng. Sci. 2021;32(8):734-742.
https://doi.org/10.5515/KJKIEES.2021.32.8.734

Airborne radars should track an enemy aircraft from maximum to minimum range very accurately to assist in immediate action. Meanwhile, when the target aircraft enters into very close range, such as a few kilometers, the effect of the glint on the angle measurement error increases. In this study, the design of signal processing and waveform consideration of short-range tracking mode of airborne radars is described. The proposed mode design includes the coherence limitation of the CPI and usage of multiple bursts to reduce the glint effect. The p...
논문/REGULAR PAPERS

Aug 31, 2021

Radar Performance Variation according to the Change of Atmospheric Refractive Index
대기 굴절률 변화에 따른 레이다 성능 변화에 관한 연구

Myung-Hoon Park, Woo-Joong Jeon, Hyun-Seung Kim, Se-Woong Kwon, Hyun-Wook Moon, Ki-Won Lee 박명훈, 전우중, 김현승, 권세웅, 문현욱, 이기원

J. Korean Inst. Electromagn. Eng. Sci. 2021;32(8):743-750.
https://doi.org/10.5515/KJKIEES.2021.32.8.743

Factors that contribute to varying radar performance include internal causes such as equipment obsolescence, and external causes such as terrain and atmosphere. In particular, the atmosphere, which is a natural element, causes inevitable performance changes. The refractive index changes with atmospheric conditions in real time and affects the propagation environment, which affects the radar performance. Depending on the refractive index, atmospheric conditions are divided into super, sub, standard, normal, and trap, and the radar performance ch...
단편논문/SHORT PAPER

Aug 31, 2021

A K-/Ka-Band CMOS Power Amplifier with a Matched Cascode Power Cell
매칭된 캐스코드 전력 셀 기반 K-/Ka-대역 CMOS 전력 증폭기

Changmin Kim, Kichul Kim, Juntaek Oh 김창민, 김기철, 오준택

J. Korean Inst. Electromagn. Eng. Sci. 2021;32(8):751-754.
https://doi.org/10.5515/KJKIEES.2021.32.8.751

This study proposes a K-/Ka-band CMOS power amplifier (PA) with a matched cascode power cell. Interstage inductors are introduced between the common source (CS) and common gate (CG) transistors to achieve high power gain and high reverse isolation of the PA. Cold FETs are configured with interstage inductors to reduce the phase distortion of the PA. The input and output matching networks of the PA are designed as broadside-coupled transformers to obtain a high coupling coefficient and low insertion loss. The proposed PA is fabricated using a 65...

CURRENT ISSUE: Aug 2021, Vol. 32 , No. 8

특집논문/SPECIAL EDITION Design of a Dual-Loop Array Antenna with Improved Isolation and Durability Characteristics 격리도 및 내구성이 개선된 X대역 이중루프 배열 안테나 설계 Doyoung Jang, Sungsik Wang, JoungMyoung Joo, Hosung Choo 장도영, 왕성식, 주정명, 추호성 J. Korean Inst. Electromagn. Eng. Sci. 2021;32(8):675-680. https://doi.org/10.5515/KJKIEES.2021.32.8.675 HTML PDF PubReader	논문/REGULAR PAPERS CPW-Fed super-Wideband In-Building Repeater Antenna Design for Wireless Communication Bands 무선통신 주파수 대역에서 운용할 수 있는 CPW 급전 초광대역 In-Building 중계기 안테나 설계 Seong-Hun Kim, Ji-Hwan Ko 김성훈, 고지환 J. Korean Inst. Electromagn. Eng. Sci. 2021;32(8):681-689. https://doi.org/10.5515/KJKIEES.2021.32.8.681 HTML PDF PubReader
논문/REGULAR PAPERS Design of a 3D T-Shaped Dipole Antenna Inspired by Origami and Kirigami Theory 종이접기와 키리가미 이론에 기반한 3차원 T-자형 다이폴 안테나 설계 Dohyun Kim, Gyoungdeuk Kim, Hyunmin Jeong, Woohyeok Choi, Nohgyeom Ha, Myeongha Hwang, Sangkil Kim 김도현, 김경득, 정현민, 최우혁, 하노겸, 황명하, 김상길 J. Korean Inst. Electromagn. Eng. Sci. 2021;32(8):690-698. https://doi.org/10.5515/KJKIEES.2021.32.8.690 HTML PDF PubReader	논문/REGULAR PAPERS Ultra-Wideband Cavity-Backed Four-Arm Sinuous Antenna with Low Height and Uniform Gain Characteristics 낮은 안테나 높이 및 균일한 이득 특성을 갖는 초광대역 네 개의 팔을 갖는 후방 공동 시뉴어스 안테나 Donghyun Kim, Chan Yeong Park, Youngwan Kim, Hyun Kim, Young Joong Yoon 김동현, 박찬영, 김영완, 김현, 윤영중 J. Korean Inst. Electromagn. Eng. Sci. 2021;32(8):699-707. https://doi.org/10.5515/KJKIEES.2021.32.8.699 HTML PDF PubReader
논문/REGULAR PAPERS 3.5 GHz High-Efficiency Asymmetric Doherty Power Amplifier Design Using a Complex Combining Load 복소결합부하를 이용한 3.5 GHz 대역의 고효율 비대칭 도허티 전력증폭기 설계 Joosung Kim, Woojin Choi, Youngchan Choi, Hansik Oh, Youngoo Yang 김주성, 최우진, 최영찬, 오한식, 양영구 J. Korean Inst. Electromagn. Eng. Sci. 2021;32(8):708-716. https://doi.org/10.5515/KJKIEES.2021.32.8.708 HTML PDF PubReader	논문/REGULAR PAPERS A Spectrum-Sharing Policy to Implement Effective Local 5G for Smart Factories 스마트공장용 로컬 5G의 효과적 도입을 위한 공동사용정책방안 Youngmun Kim, Young Joong Yoon 김영문, 윤영중 J. Korean Inst. Electromagn. Eng. Sci. 2021;32(8):717-723. https://doi.org/10.5515/KJKIEES.2021.32.8.717 HTML PDF PubReader
논문/REGULAR PAPERS Modeling and Design of a High-Altitude Electromagnetic Pulse Generator using Double RC Branch Circuits 이중 RC 브랜치 회로를 활용한 고고도 전자기파 펄스 발생기의 등가회로 모델링 및 설계 Jaesik Moon, Jong Hwa Kwon, Eakhwan Song 문재식, 권종화, 송익환 J. Korean Inst. Electromagn. Eng. Sci. 2021;32(8):724-733. https://doi.org/10.5515/KJKIEES.2021.32.8.724 HTML PDF PubReader	논문/REGULAR PAPERS Designing a Signal Processing Method for the Short-Range Target Tracking Mode of Airborne Radars 항공기 레이다의 근접 표적 추적 모드 신호처리 설계 Sung Yeong Park 박성영 J. Korean Inst. Electromagn. Eng. Sci. 2021;32(8):734-742. https://doi.org/10.5515/KJKIEES.2021.32.8.734 HTML PDF PubReader
논문/REGULAR PAPERS Radar Performance Variation according to the Change of Atmospheric Refractive Index 대기 굴절률 변화에 따른 레이다 성능 변화에 관한 연구 Myung-Hoon Park, Woo-Joong Jeon, Hyun-Seung Kim, Se-Woong Kwon, Hyun-Wook Moon, Ki-Won Lee 박명훈, 전우중, 김현승, 권세웅, 문현욱, 이기원 J. Korean Inst. Electromagn. Eng. Sci. 2021;32(8):743-750. https://doi.org/10.5515/KJKIEES.2021.32.8.743 HTML PDF PubReader	단편논문/SHORT PAPER A K-/Ka-Band CMOS Power Amplifier with a Matched Cascode Power Cell 매칭된 캐스코드 전력 셀 기반 K-/Ka-대역 CMOS 전력 증폭기 Changmin Kim, Kichul Kim, Juntaek Oh 김창민, 김기철, 오준택 J. Korean Inst. Electromagn. Eng. Sci. 2021;32(8):751-754. https://doi.org/10.5515/KJKIEES.2021.32.8.751 HTML PDF PubReader

MOST READ ARTICLE

특집논문/SPECIAL EDITION Beamforming Algorithms 빔포밍 알고리즘 Song Noh, Chun Hyunchae 노송, 전현채 J. Korean Inst. Electromagn. Eng. Sci. 2020;31(8):701-712. https://doi.org/10.5515/KJKIEES.2020.31.8.006 HTML PDF PubReader Last 3 months views: 596	논문/REGULAR PAPERS Distance Sensing of Moving Target with Frequency Control of 2.4 GHz Doppler Radar 2.4 GHz 도플러 레이다의 주파수 조정을 통한 이동체 거리 센싱 Kyung-Jin Baik, Byung-Jun Jang 백경진, 장병준 J. Korean Inst. Electromagn. Eng. Sci. 2019;30(2):152-159. https://doi.org/10.5515/KJKIEES.2019.30.2.152 HTML PDF PubReader Last 3 months views: 454
논문/REGULAR PAPERS Performance Analysis of a LoRa Device on Duty Cycle Local Regulation of Korean RFID/USN Frequency Band 국내 RFID/USN 주파수 대역의 Duty Cycle 기술기준 하에서 LoRa 기기의 성능 분석 Hyungoo Yoon, Jungsun Um, Byung-Jun Jang 윤현구, 엄중선, 장병준 J. Korean Inst. Electromagn. Eng. Sci. 2017;28(2):113-119. https://doi.org/10.5515/KJKIEES.2017.28.2.113 HTML PDF PubReader Last 3 months views: 434	특집논문/SPECIAL EDITION Cyber Electronic Warfare Technologies and Development Directions 사이버전자전 기술 및 발전방향 Soyeon Kim, Seongpyo Kim, Beom Joon Park, Un Seob Jeong, Hunwoo Choo, Jeong Yun, Jinyong Kim 김소연, 김성표, 박범준, 정운섭, 추헌우, 윤정, 김진용 J. Korean Inst. Electromagn. Eng. Sci. 2021;32(2):119-126. https://doi.org/10.5515/KJKIEES.2021.32.2.119 HTML PDF PubReader Last 3 months views: 421
논문/REGULAR PAPERS Performance Comparison of 28 GHz Array Antennas for 5G Mobile Devices 5G 단말용 28 GHz 배열안테나의 안테나 타입별 성능 비교 연구 Sun-Ryul Kim, Young-Taek Hong, Ji-Hoon Bang, Jae-Hoon Choi 김선률, 홍영택, 방지훈, 최재훈 J. Korean Inst. Electromagn. Eng. Sci. 2019;30(1):45-53. https://doi.org/10.5515/KJKIEES.2019.30.1.45 HTML PDF PubReader Last 3 months views: 407	논문/REGULAR PAPERS Short-Range Radar Sensor System Using Continuous Wave Signals 연속파 신호를 이용한 근거리 레이다 센서 시스템 Jae-Hyun Park, Ju-Yeon Kim, Se-Young Jang, Hyun-Jun Ji, Jae Young Sim, Jong-Ryul Yang 박재현, 김주연, 장세영, 지현준, 심재용, 양종렬 J. Korean Inst. Electromagn. Eng. Sci. 2020;31(2):143-153. https://doi.org/10.5515/KJKIEES.2020.31.2.143 HTML PDF PubReader Last 3 months views: 370
특집논문/SPECIAL EDITION Tutorial: Reconfigurable Transmitarray Antenna Using Metasurface 튜토리얼: 메타표면을 이용한 빔포밍/빔조향 투과 안테나 Jae-Gon Lee 이재곤 J. Korean Inst. Electromagn. Eng. Sci. 2020;31(8):663-676. https://doi.org/10.5515/KJKIEES.2020.31.8.002 HTML PDF PubReader Last 3 months views: 370	논문/REGULAR PAPERS Design of Tile-Type Rx Phased-Array Antenna for Ku-Band Satellite Communications Ku 대역 위성통신용 타일형 수신 위상배열 안테나의 설계 Taehwan Joo, Kichul Kim, Jongwoo Seo 주태환, 김서종, 종우 J. Korean Inst. Electromagn. Eng. Sci. 2019;30(9):702-711. https://doi.org/10.5515/KJKIEES.2019.30.9.702 HTML PDF PubReader Last 3 months views: 368

MOST CITED ARTICLE

논문/REGULAR PAPERS Development of Modeling & Simulation Tool for Long Range Radar Considering Operational Environment in Time Domain 시간 기반의 운용환경을 고려한 장거리 레이다 M&S 도구 개발 Myung-Hoon Park, Hyun-Seung Kim, Woo-Joong Jeon, Seung-Ki You, Se-Woong Kwon, Hyun-Wook Moon, Ki-Won Lee 박명훈, 김현승, 전우중, 유승기, 권세웅, 문현욱, 이기원 J. Korean Inst. Electromagn. Eng. Sci. 2019;30(7):591-602. https://doi.org/10.5515/KJKIEES.2019.30.7.591 HTML PDF PubReader Cited by 6	논문/REGULAR PAPERS Non-Foster Matching Circuit Design to Improve VHF- and UHF-Band Small Antenna Impedance Matching VHF 및 UHF 대역 소형 안테나 매칭성능 개선을 위한 비 포스터 정합회로 설계 Jong-Gyu Go, Jae-Young Chung 고종규, 정재영 J. Korean Inst. Electromagn. Eng. Sci. 2018;29(3):159-166. https://doi.org/10.5515/KJKIEES.2018.29.3.159 HTML PDF PubReader Cited by 5
단편논문/SHORT PAPER Implementation of Real-Time Direction Finding System Using Time-Modulated Array with Two Antenna Elements and One USRP 2개의 안테나 소자를 갖는 Time-Modulated Array와 하나의 USRP를 이용한 실시간 방향탐지 시스템의 구현 Sangjoon Lee, Hyungoo Yoon, Hosung Choo, Byung-Jun Jang 이상준, 윤현구, 추호성, 장병준 J. Korean Inst. Electromagn. Eng. Sci. 2017;28(4):347-350. https://doi.org/10.5515/KJKIEES.2017.28.4.347 HTML PDF PubReader Cited by 5	논문/REGULAR PAPERS Correction of Continuous Motion Effects for Airborne FMCW-SAR System 항공기 기반 FMCW-SAR 시스템의 연속이동효과 보정 Ji-hwan Hwang, Jungkyo Jung, Duk-jin Kim, Jin-Woo Kim, He-Sub Shin, Jae-Woo Ok 황지환, 정정교, 김덕진, 김진우, 신희섭, 옥재우 J. Korean Inst. Electromagn. Eng. Sci. 2017;28(5):410-418. https://doi.org/10.5515/KJKIEES.2017.28.5.410 HTML PDF PubReader Cited by 5
단편논문/SHORT PAPER Analysis of Radar Cross Section of the Integrated Mast Module for Battleship 함정용 통합 마스트의 레이다 단면적 분석 Hokeun Shin, Seokgon Lee, Dongmin Park, Jinwoo Shin, Myungsoo Chung, Sanghyun Park, Yong Bae Park 신호근, 이석곤, 박동민, 신진우, 정명수, 박상현, 박용배 J. Korean Inst. Electromagn. Eng. Sci. 2017;28(7):584-587. https://doi.org/10.5515/KJKIEES.2017.28.7.584 HTML PDF PubReader Cited by 5	논문/REGULAR PAPERS Performance Analysis of Quad-pol SAR System for Wide-Swath Operation Mode 광역관측 운용 모드에 대한 Quad-pol SAR 시스템의 성능 분석 Jung-Hwan Lim, Seong Sik Yoon, Jae-Wook Lee, Taek-Kyung Lee, Sang-Burm Ryu, Hyeon-Cheo Lee, Sang-Gyu Lee 임정환, 윤성식, 이재욱, 이택경, 유상범, 이현철, 이상규 J. Korean Inst. Electromagn. Eng. Sci. 2019;30(2):141-151. https://doi.org/10.5515/KJKIEES.2019.30.2.141 HTML PDF PubReader Cited by 4
논문/REGULAR PAPERS Design of Tile-Type Rx Phased-Array Antenna for Ku-Band Satellite Communications Ku 대역 위성통신용 타일형 수신 위상배열 안테나의 설계 Taehwan Joo, Kichul Kim, Jongwoo Seo 주태환, 김서종, 종우 J. Korean Inst. Electromagn. Eng. Sci. 2019;30(9):702-711. https://doi.org/10.5515/KJKIEES.2019.30.9.702 HTML PDF PubReader Cited by 4	논문/REGULAR PAPERS Performance Analysis of a LoRa Device on Duty Cycle Local Regulation of Korean RFID/USN Frequency Band 국내 RFID/USN 주파수 대역의 Duty Cycle 기술기준 하에서 LoRa 기기의 성능 분석 Hyungoo Yoon, Jungsun Um, Byung-Jun Jang 윤현구, 엄중선, 장병준 J. Korean Inst. Electromagn. Eng. Sci. 2017;28(2):113-119. https://doi.org/10.5515/KJKIEES.2017.28.2.113 HTML PDF PubReader Cited by 4