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.
TUTORIAL & REVIEW

Feb 28, 2023

Characteristics of Land Clutter Signals and Their Synthesis Methods
지면 레이다 클러터 신호의 특성 및 생성 방법

Tae-In Kim, Sanghoek Kim 김태인, 김상혁

J. Korean Inst. Electromagn. Eng. Sci. 2023;34(2):79-87.
https://doi.org/10.5515/KJKIEES.2023.34.2.79

Clutter signals are undesired for radar detection. Clutter signals can be categorized as volume, land, and sea clutter. These unwanted signals disturb radar by detecting the target. To increase detection accuracy, the radar must be able to differentiate clutter signals from the target and remove cluttering signals. Therefore, it is important to understand the characteristics of clutter signals. In this paper, we review the characteristics of land clutter signals and the methods used to generate them.
TUTORIAL & REVIEW

Feb 28, 2023

Changes of the Japanese Periodic Inspection System for Mobile Communication Base Stations and Their Implications
일본의 이동통신기지국 정기검사 제도 변화와 시사점

Duk-Kyu Park 박덕규

J. Korean Inst. Electromagn. Eng. Sci. 2023;34(2):88-96.
https://doi.org/10.5515/KJKIEES.2023.34.2.88

Recently, Japan introduced a system in which performance tests on all electrical characteristics can be omitted in the periodic inspections of base stations for mobile communication. This paper analyzes the background of introducing a simplified system that enables the omission of electrical measurements and the reasons why performance tests are omitted in the periodic inspection of base stations for mobile communication in Japan. In addition, based on this analysis, the current status and problems of periodic inspections in Korea are reviewed ...
논문/REGULAR PAPERS

Feb 28, 2023

Bow-Tie Quasi-Yagi Antenna with the Modified Ground Plane Structure for Bandwidth-Enhanced Characteristics
변형된 접지면 구조를 이용한 대역폭 확장 특성을 갖는 보우-타이형 준-야기 안테나

Jisu Lee, Jeahoon Cho, Jaehoon Choi, Kyung-Young Jung 이지수, 조제훈, 최재훈, 정경영

J. Korean Inst. Electromagn. Eng. Sci. 2023;34(2):97-102.
https://doi.org/10.5515/KJKIEES.2023.34.2.97

In this paper, a bow-tie quasi-Yagi antenna with a modified ground plane structure is proposed for wideband characteristics. The ground plane structure of the proposed antenna improved the impedance-matching characteristics by inserting a parallel plate ground with a width equal to the parallel-coupled feed line width. This simply modified ground plane structure can lead to an improvement in impedance matching by additional inductance, capacitance, mutual inductance, and mutual capacitance components. The proposed antenna has a −10-dB reflect...
논문/REGULAR PAPERS

Feb 28, 2023

Design of Miniaturized 360° Analog Phase Shifter for Multi-Functional Transmit-Array Antenna
다기능 투과배열 안테나 단위셀 소형화 설계를 위한 360° 반사형 축소형 아날로그 위상 천이기 설계

Myeongha Hwang, Gyoungdeuk Kim, In-Gon Lee, Sangkil Kim 황명하, 김경득, 이인곤, 김상길

J. Korean Inst. Electromagn. Eng. Sci. 2023;34(2):103-110.
https://doi.org/10.5515/KJKIEES.2023.34.2.103

This study compares the designs of one-stage and two-stage reflection-type phase shifters for miniaturized S-band multi-functional transmit-array antennas. Both phase shifters have areas smaller than 0.2 λ₀×0.4 λ₀, which is less than half of the conventional unit cell size of 0.5λ λ₀×0.5 λ₀, and both phase shifters have a phase shifting range of more than 360°. The one-stage phase shifter requires a miniaturized hybrid coupler, 1/4 wavelength transmission line, and additional...
논문/REGULAR PAPERS

Feb 28, 2023

Design of Wideband Vertically Installed Planar (VIP) Coupler
광대역 수직 장착 평면 결합기 설계

Kyeong-Jun Lee, Jeong-Hun Park, Moon-Que Lee 이경준, 박정훈, 이문규

J. Korean Inst. Electromagn. Eng. Sci. 2023;34(2):111-115.
https://doi.org/10.5515/KJKIEES.2023.34.2.111

This paper proposes a modified vertically installed planar (VIP) coupler for wideband applications. The proposed 5 GHz unlicensed national information infrastructure (U-NII) band VIP coupler is composed of three via holes and RF patterns adjusting current paths of the coupled lines for the wideband characteristic. In measurements, the proposed VIP coupler exhibits 3-dB bandwidth at 2.67 GHz with a fractional bandwidth of 47.7 % and phase error within ±2.5° at a center frequency of 5.8 GHz.
논문/REGULAR PAPERS

Feb 28, 2023

Design of a 60 GHz GaAs Enhancement-Mode pHEMT Power Amplifier MMIC with 28 dBm Output Power
60 GHz 대역 28 dBm 출력전력을 갖는 GaAs 증가형 pHEMT 전력증폭기 MMIC 설계

Soyeon Seo, Yongho Lee, Hyunchol Shin 서소연, 이용호, 신현철

J. Korean Inst. Electromagn. Eng. Sci. 2023;34(2):116-129.
https://doi.org/10.5515/KJKIEES.2023.34.2.116

A 60 GHz power amplifier (PA) monolithic microwave integrated circuit (MMIC) with +28 dBm output power is designed in an enhancement-mode 0.15 μm GaAs pseudomorphic high-electron-mobility transistor (pHEMT) technology. A two-stage topology and a four-way power combining technique are adopted to achieve a high power gain, high output power, and high linearity. Transistor-level circuit and layout designs are developed, and the circuit performances are verified through three-dimensional electromagnetic simulations. The designed PA MMIC exhibits...
논문/REGULAR PAPERS

Feb 28, 2023

M&S Technique for Burn Through Range Analysis Considering Terrain Environment and Earth Curvature
실제 지형 환경과 지구 곡률이 반영된 재밍 유효거리 분석을 위한 M&S 기법

Jun Heo, Hyo Sang Moon, Sang Su Kim, Nam Woo Choi, Yong Bae Park 허준, 문효상, 김상수, 최남우, 박용배

J. Korean Inst. Electromagn. Eng. Sci. 2023;34(2):130-137.
https://doi.org/10.5515/KJKIEES.2023.34.2.130

Jammers are commonly employed in electronic warfare (EW) environments. A system that can respond according to the jamming signals emitted by jammers can be developed by predicting the affected radar detection range and burn through range. In this paper, we propose an M&S technique for calculating the received power by considering the actual terrain information and the curvature of the Earth, and analyze the burn through range with the specifications of the radar and jammer. The proposed M&S technique was applied by using the specificati...
논문/REGULAR PAPERS

Feb 28, 2023

A Study on the Suppression of Secondary Reflected Signals during Naval Gun Fire Using Naval Surveillance Radar
함정용 탐색 레이다를 이용한 대함표적 사격 시 2차 반사 신호 억제에 관한 연구

In-Cheol Cho, Choung-Hyun Lee, Jae-Yup Shin, Hyun-Wook Moon, Sung-Hwan Sohn 조인철, 이충현, 신재엽, 문현욱, 손성환

J. Korean Inst. Electromagn. Eng. Sci. 2023;34(2):138-144.
https://doi.org/10.5515/KJKIEES.2023.34.2.138

Ship radar systems extract the distance, bearing, and altitude of a target and deliver three-dimensional tracking information to the combat system of the ship. In addition, high-resolution information about the target and B-Scope can be obtained using TWS (track while scan) tracking, and the information is used for naval gun firing. However, the normal B-scope is not formed if strong clutter signals from secondary reflection signals from the ground, coastal islands, or mountains are introduced during tracking. In such cases, it could be difficu...
논문/REGULAR PAPERS

Feb 28, 2023

Development for Wide-Band Active Array System with Photonics-Based Optical Transceiver
포토닉스 기반 송수신기 연동 광대역 능동위상배열 시스템

Sungjun Yoo, Minchul Kim, Chaehyun Jung, Jaewook Park, Jaemin Lee, Sunghoon Jang 류성준, 김민철, 정채현, 박재욱, 이재민, 장성훈

J. Korean Inst. Electromagn. Eng. Sci. 2023;34(2):145-154.
https://doi.org/10.5515/KJKIEES.2023.34.2.145

This paper describes the development of a wide-band active array system with a photonics-based optical transceiver module (OTM) and measurement results of Tx/Rx beam characteristics using near-field measurements. The proposed transceiver consists of an RF transceiver module and an OTM. The RF transceiver module was designed as a 2×8 array using a microstrip dipole antenna. The OTM performs frequency up/down conversion using an optical modulator and has four Rx channels of A/B/C/D for mono-pulse angle extraction. The transmit and receive modu...
논문/REGULAR PAPERS

Feb 28, 2023

A Study on Improving the Performance of Low-Altitude, High-Speed Target Detection at Sea Using Dual-Band Radar
이중대역 레이다를 이용한 해상 저고도 고속 표적 탐지 성능 향상 연구

Ki-Jun Rah, Geon Lee, Ki-Bong Kang, Min Kim, Si-Ho Kim, Kyung-Tae Kim 라기준, 이건, 강기봉, 김민, 김시호, 김경태

J. Korean Inst. Electromagn. Eng. Sci. 2023;34(2):155-166.
https://doi.org/10.5515/KJKIEES.2022.34.2.155

Low-altitude and high-speed targets that fly close to the sea level are generally detected using a single-band moving target indicator (MTI) technique. The MTI technique detects a moving target by filtering out the sea-clutter Doppler spectrum. However, when detecting a low-altitude, high-speed target flying close to the sea, blind speed problems can occur because of the fast maneuvering characteristics of the target. Moreover, multipath phenomena and false alarm may occur due to the influence of the sea. Such problems make detection difficult....
단편논문/SHORT PAPERS

Feb 28, 2023

ISM Band Direction-Finding Antenna with Improved Front-to-Back Ratio
전후방비 개선 설계 기법을 이용한 ISM 대역 방향 탐지 안테나

Dong Geun Lee, Won Bin Park, Hyosang Moon, Changyong Rhee, Namwoo Choi, Keum Cheol Hwang 이동근, 박원빈, 문효상, 이창용, 최남우, 황금철

J. Korean Inst. Electromagn. Eng. Sci. 2023;34(2):167-170.
https://doi.org/10.5515/KJKIEES.2022.34.2.167

In this study, a direction-finding array antenna with an improved front-to-back ratio was developed by inserting meander slots into the ground plane of an electrically small antenna. The proposed ground slot structure improves direction-finding capabilities while maintaining the electrically compact structure of the antenna. The overall size of the antenna is 58 mm×58 mm×40 mm, with each array element measuring 40 mm×22 mm×1.6 mm. The antenna consists of eight elements attached to a vertical column, forming an octagonal structure that aff...

CURRENT ISSUE: Feb 2023, Vol. 34 , No. 2

TUTORIAL & REVIEW Characteristics of Land Clutter Signals and Their Synthesis Methods 지면 레이다 클러터 신호의 특성 및 생성 방법 Tae-In Kim, Sanghoek Kim 김태인, 김상혁 J. Korean Inst. Electromagn. Eng. Sci. 2023;34(2):79-87. https://doi.org/10.5515/KJKIEES.2023.34.2.79 HTML PDF PubReader	TUTORIAL & REVIEW Changes of the Japanese Periodic Inspection System for Mobile Communication Base Stations and Their Implications 일본의 이동통신기지국 정기검사 제도 변화와 시사점 Duk-Kyu Park 박덕규 J. Korean Inst. Electromagn. Eng. Sci. 2023;34(2):88-96. https://doi.org/10.5515/KJKIEES.2023.34.2.88 HTML PDF PubReader
논문/REGULAR PAPERS Bow-Tie Quasi-Yagi Antenna with the Modified Ground Plane Structure for Bandwidth-Enhanced Characteristics 변형된 접지면 구조를 이용한 대역폭 확장 특성을 갖는 보우-타이형 준-야기 안테나 Jisu Lee, Jeahoon Cho, Jaehoon Choi, Kyung-Young Jung 이지수, 조제훈, 최재훈, 정경영 J. Korean Inst. Electromagn. Eng. Sci. 2023;34(2):97-102. https://doi.org/10.5515/KJKIEES.2023.34.2.97 HTML PDF PubReader	논문/REGULAR PAPERS Design of Miniaturized 360° Analog Phase Shifter for Multi-Functional Transmit-Array Antenna 다기능 투과배열 안테나 단위셀 소형화 설계를 위한 360° 반사형 축소형 아날로그 위상 천이기 설계 Myeongha Hwang, Gyoungdeuk Kim, In-Gon Lee, Sangkil Kim 황명하, 김경득, 이인곤, 김상길 J. Korean Inst. Electromagn. Eng. Sci. 2023;34(2):103-110. https://doi.org/10.5515/KJKIEES.2023.34.2.103 HTML PDF PubReader
논문/REGULAR PAPERS Design of Wideband Vertically Installed Planar (VIP) Coupler 광대역 수직 장착 평면 결합기 설계 Kyeong-Jun Lee, Jeong-Hun Park, Moon-Que Lee 이경준, 박정훈, 이문규 J. Korean Inst. Electromagn. Eng. Sci. 2023;34(2):111-115. https://doi.org/10.5515/KJKIEES.2023.34.2.111 HTML PDF PubReader	논문/REGULAR PAPERS Design of a 60 GHz GaAs Enhancement-Mode pHEMT Power Amplifier MMIC with 28 dBm Output Power 60 GHz 대역 28 dBm 출력전력을 갖는 GaAs 증가형 pHEMT 전력증폭기 MMIC 설계 Soyeon Seo, Yongho Lee, Hyunchol Shin 서소연, 이용호, 신현철 J. Korean Inst. Electromagn. Eng. Sci. 2023;34(2):116-129. https://doi.org/10.5515/KJKIEES.2023.34.2.116 HTML PDF PubReader
논문/REGULAR PAPERS M&S Technique for Burn Through Range Analysis Considering Terrain Environment and Earth Curvature 실제 지형 환경과 지구 곡률이 반영된 재밍 유효거리 분석을 위한 M&S 기법 Jun Heo, Hyo Sang Moon, Sang Su Kim, Nam Woo Choi, Yong Bae Park 허준, 문효상, 김상수, 최남우, 박용배 J. Korean Inst. Electromagn. Eng. Sci. 2023;34(2):130-137. https://doi.org/10.5515/KJKIEES.2023.34.2.130 HTML PDF PubReader	논문/REGULAR PAPERS A Study on the Suppression of Secondary Reflected Signals during Naval Gun Fire Using Naval Surveillance Radar 함정용 탐색 레이다를 이용한 대함표적 사격 시 2차 반사 신호 억제에 관한 연구 In-Cheol Cho, Choung-Hyun Lee, Jae-Yup Shin, Hyun-Wook Moon, Sung-Hwan Sohn 조인철, 이충현, 신재엽, 문현욱, 손성환 J. Korean Inst. Electromagn. Eng. Sci. 2023;34(2):138-144. https://doi.org/10.5515/KJKIEES.2023.34.2.138 HTML PDF PubReader
논문/REGULAR PAPERS Development for Wide-Band Active Array System with Photonics-Based Optical Transceiver 포토닉스 기반 송수신기 연동 광대역 능동위상배열 시스템 Sungjun Yoo, Minchul Kim, Chaehyun Jung, Jaewook Park, Jaemin Lee, Sunghoon Jang 류성준, 김민철, 정채현, 박재욱, 이재민, 장성훈 J. Korean Inst. Electromagn. Eng. Sci. 2023;34(2):145-154. https://doi.org/10.5515/KJKIEES.2023.34.2.145 HTML PDF PubReader	논문/REGULAR PAPERS A Study on Improving the Performance of Low-Altitude, High-Speed Target Detection at Sea Using Dual-Band Radar 이중대역 레이다를 이용한 해상 저고도 고속 표적 탐지 성능 향상 연구 Ki-Jun Rah, Geon Lee, Ki-Bong Kang, Min Kim, Si-Ho Kim, Kyung-Tae Kim 라기준, 이건, 강기봉, 김민, 김시호, 김경태 J. Korean Inst. Electromagn. Eng. Sci. 2023;34(2):155-166. https://doi.org/10.5515/KJKIEES.2022.34.2.155 HTML PDF PubReader
단편논문/SHORT PAPERS ISM Band Direction-Finding Antenna with Improved Front-to-Back Ratio 전후방비 개선 설계 기법을 이용한 ISM 대역 방향 탐지 안테나 Dong Geun Lee, Won Bin Park, Hyosang Moon, Changyong Rhee, Namwoo Choi, Keum Cheol Hwang 이동근, 박원빈, 문효상, 이창용, 최남우, 황금철 J. Korean Inst. Electromagn. Eng. Sci. 2023;34(2):167-170. https://doi.org/10.5515/KJKIEES.2022.34.2.167 HTML PDF PubReader

MOST READ ARTICLE

튜토리얼 및 리뷰/TUTORIAL & REVIEW Principles and Trends of UWB Positioning Technology UWB 측위기술의 원리 및 동향 Byung-Jun Jang 장병준 J. Korean Inst. Electromagn. Eng. Sci. 2022;33(1):1-11. https://doi.org/10.5515/KJKIEES.2022.33.1.1 HTML PDF PubReader Last 3 months views: 1854	특집논문/SPECIAL SHORT EDITIONS Private 5G (e-Um 5G) Trend and Promotion Policy 이음5G 서비스 국내외 동향과 활성화 정책방안 Sang-Yun Lee 이상윤 J. Korean Inst. Electromagn. Eng. Sci. 2022;33(7):531-540. https://doi.org/10.5515/KJKIEES.2022.33.7.531 HTML PDF PubReader Last 3 months views: 707
TUTORIAL & REVIEW Frequency Interference, Analysis Method, and Application Examples of Sub-GHz Frequency Band 주파수 간섭의 이해, 분석 방법, Sub-GHz 주파수대역 적용 사례 Hyungoo Yoon, Byung-Jun Jang 윤현구, 장병준 J. Korean Inst. Electromagn. Eng. Sci. 2021;32(1):1-9. https://doi.org/10.5515/KJKIEES.2021.32.1.1 HTML PDF PubReader Last 3 months views: 609	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: 569
논문/REGULAR PAPERS A Combined Approach of Classification and Regression for Oriented Object Detection of Missiles 유도무기 영상의 회전 객체 탐지를 위한 분류 및 회귀방법의 통합적 접근 Sukwon Jang, Jae-Min Baek, Min-Seok Kang 장석원, 백재민, 강민석 J. Korean Inst. Electromagn. Eng. Sci. 2021;32(12):1099-1107. https://doi.org/10.5515/KJKIEES.2021.32.12.1099 HTML PDF PubReader Last 3 months views: 541	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: 528
특집논문/SPECIAL EDITION Development of Terminal Modem Software for Terrestrial/Non-Terrestrial Communication Based on 3GPP Standards 3GPP 5G 규격 기반 지상/비지상 통신 단말 모뎀 소프트웨어 개발 Mi Kyoung Kim 김미경 J. Korean Inst. Electromagn. Eng. Sci. 2022;33(1):28-37. https://doi.org/10.5515/KJKIEES.2022.33.1.28 HTML PDF PubReader Last 3 months views: 484	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: 483

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 7	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 7
특집논문/SPECIAL EDITION Direction Finding Technology: Tutorial, Review, and Research Prospects 방향탐지기술: 튜토리얼, 최신동향 및 연구전망 Byung-Jun Jang 장병준 J. Korean Inst. Electromagn. Eng. Sci. 2019;30(8):607-617. https://doi.org/10.5515/KJKIEES.2019.30.8.607 HTML PDF PubReader Cited by 6	논문/REGULAR PAPERS Measurement Method for Monostatic Radar Cross Section of a Scaled Aircraft Model in Non-Anechoic Environment 비 챔버 환경에서의 항공기 축소 모형에 대한 모노스태틱 레이다 단면적 측정 방법 Yeong-Hoon Noh, Chan-Sun Park, Ki-Jung Kim, Youn-Hui Jang, Jong-Gwan Yook 노영훈, 박찬선, 김기중, 장윤희, 육종관 J. Korean Inst. Electromagn. Eng. Sci. 2019;30(7):583-590. https://doi.org/10.5515/KJKIEES.2019.30.7.583 HTML PDF PubReader Cited by 6
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 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
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 5	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 5