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, 2020

Optimization of a 36-Element Broadband Direction-Finding Antenna Array Using Printed Vivaldi Array Elements with Extended Flares
확장 개구면의 인쇄형 비발디를 이용한 36소자 광대역 방향 탐지 배열안테나 최적화

Tae Heung Lim, Doyoung Jang, Seul-Gi Park, Hosung Choo 임태흥, 장도영, 박슬기, 추호성

J. Korean Inst. Electromagn. Eng. Sci. 2020;31(8):655-662.
https://doi.org/10.5515/KJKIEES.2020.31.8.001

In this study, we proposed a 36-element broadband array antenna optimization method using printed Vivaldi antennas with an extended aperture. The direction-finding performance was compared to a conventional rectangular array to verify the optimum configuration. The proposed array configuration with ideal dipole elements demonstrated an RMSE less than 1° and an SLL greater than 4.1 dB in all frequency bands when the signal was incident at Az=50°. In addition, a printed Vivaldi antenna with an extended conductive flare was des...
특집논문/SPECIAL EDITION

Aug 31, 2020

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

In this paper, we describe the operation principle of a reconfigurable transmitarray antenna(TA) using a transmissive metasurface (MS) and introduce state-of-the-art technology trends. The TA comprises a source antenna; further, the design of a planar MS allows for the control of the wave front from the feed source when the MS exhibits a good transmittance and a full transmission phase variation of 360°. When the MS varies the phase of the transmitted wave passing through the MS such that it is in-phase at the normal plane of the desired dir...
특집논문/SPECIAL EDITION

Aug 31, 2020

Initial Beam Forming for Active Phased Array Antenna Systems
능동위상배열안테나 시스템의 초기 빔 형성에 관한 연구

Jinwoo Jung, Taehwan Joo 정진우, 주태환

J. Korean Inst. Electromagn. Eng. Sci. 2020;31(8):677-687.
https://doi.org/10.5515/KJKIEES.2020.31.8.003

An active phased array antenna is a system that steers and forms a beam by controlling the amplitude and phase of the excited signal to each radiating element. To perform wireless communication using such an antenna system, precise initial beam forming based on the position of a partner station must be preceded. This paper proposed a method for the position of partner stations based on two-dimensional wide beam formation, spatial sequential search, and precision search using heuristic algorithms. The proposed method was verified by simulation b...
특집논문/SPECIAL EDITION

Aug 31, 2020

5 GHz UAV Array Antenna Design with a 3×4 Reconfigurable Feeding Network for Wide Elevation Coverage
넓은 앙각 커버리지를 위한 3×4 재구성 급전회로를 갖는 5 GHz 무인항공기용 배열 안테나 설계

Ye-Yeong Jeong, Dong-Geun Seo, Wang-Sang Lee 정예영, 서동근, 이왕상

J. Korean Inst. Electromagn. Eng. Sci. 2020;31(8):688-692.
https://doi.org/10.5515/KJKIEES.2020.31.8.004

This paper presents a 5 GHz UAV array antenna with a 3×4 reconfigurable feeding network for wide elevation coverage. The proposed array comprises a four-element printed dipole antenna array in the top substrate, two supports with a tapered balun, a self-reflector for gain improvement, and a reconfigurable feeding network in the bottom substrate. For wide beam coverage, the feeding network comprises one RF switch, one Wilkinson power divider, and two 90° hybrid couplers; further, the network achieves wide beam coverage using one broadside bea...
특집논문/SPECIAL EDITION

Aug 31, 2020

Low Side-Lobe Beamforming Antenna for Earth Stations in Motion
이동형 지구국을 위한 저부엽 빔 형성 안테나에 관한 연구

Hyeonjong Jung, Jinwoo Jung, Yeongseog Lim 정현종, 정진우, 임영석

J. Korean Inst. Electromagn. Eng. Sci. 2020;31(8):693-700.
https://doi.org/10.5515/KJKIEES.2020.31.8.005

Phased array antennas are commonly used in earth stations because of their fast and accurate beam steering characteristics. The sidelobe of earth station antennas is strictly regulated internationally to avoid affecting the adjacent satellites. To suppress the side lobe of the phased array antenna, the accurate amplitude and phase of the signal must be fed to each radiating element. This paper proposed a method for calculating the amplitude and phase of a signal. The proposed method can rapidly and accurately calculate the amplitude and phase o...
특집논문/SPECIAL EDITION

Aug 31, 2020

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

Beamforming techniques have become an integral part of the fifth-generation(5G) of mobile communication systems and continue to evolve for providing high spectral efficiency, spatial diversity, and beamforming gain in millimeter-wave and terahertz(THz) communication for future 6G networks. This paper presents a comprehensive overview of beamforming algorithms from statistical signal processing and optimization perspectives. The fundamentals of beamforming for wireless communication and several representative beamforming algorithms for single-st...
특집논문/SPECIAL EDITION

Aug 31, 2020

Switched Array Antenna Beamforming for Low-Power IoT Wireless Communication
저전력 IoT 무선통신을 위한 스위치 배열 안테나 빔포밍

Byung-Jun Jang, Jihao Rong, Hosung Choo 장병준, 용지호, 추호성

J. Korean Inst. Electromagn. Eng. Sci. 2020;31(8):713-720.
https://doi.org/10.5515/KJKIEES.2020.31.8.007

Beamforming technology has been extensively applied in the field of 5G mobile communication and radar in recent years; it has also been applied in technological fields where it was not previously utilized. Conventional beamforming technology cannot be applied immediately to low-power IoT wireless communication because of issues such as high power consumption and price; thus, single-channel beamforming technology capable of low-power operation using switched array antennas is required. Therefore, in this paper, we examine the characteristics of ...
특집논문/SPECIAL EDITION

Aug 31, 2020

Transmit Diversity with Single Transmitter Using Switch and 180° Hybrid
스위치와 180° 하이브리드를 이용한 단일 송신기 송신 다이버시티

Hyungoo Yoon, Byung-Jun Jang 윤현구, 장병준

J. Korean Inst. Electromagn. Eng. Sci. 2020;31(8):721-728.
https://doi.org/10.5515/KJKIEES.2020.31.8.008

Generally, two synchronized transmitters are required to implement transmit diversity, such as Alamouti codes. However, because two transmitters are used, many disadvantages arise, such as increased price, power consumption, complexity, and the necessity of synchronization and calibration. In this paper, we proposed a new method to realize transmit diversity only using one transmitter. The proposed method combines baseband signal processing and an RF circuit, which connects a 180° hybrid and one switch between one transmitter and two transmi...
논문/REGULAR PAPERS

Aug 31, 2020

Quality Improvement of Synthetic Aperture Radar Images in Curved-Orbit Geometry Using a Post-Focusing Algorithm
곡선기하에서의 SAR 영상품질 향상을 위한 후처리 알고리즘 연구

Byung-Soo Kang, Keewoong Lee 강병수, 이기웅

J. Korean Inst. Electromagn. Eng. Sci. 2020;31(8):729-737.
https://doi.org/10.5515/KJKIEES.2020.31.8.009

Even after typical synthetic aperture radar(SAR) processing, targets distributed along the azimuth direction have residual errors. As these errors significantly degrade the image quality, particularly when the targets are positioned at different heights in the curved-orbit SAR geometry, further processing is required after curved-orbit SAR imaging. Accordingly, we propose a post-focusing algorithm for SAR images in the curved-orbit geometry. In the proposed method, azimuth block filtering, in which azimuth-dependent residual errors are compensa...
논문/REGULAR PAPERS

Aug 31, 2020

Target Detection and Tracking Simulation of Air Defense Radar in High-Density Clutter Environments Using a Real-time Simulator
실시간 시뮬레이터를 이용한 고밀도 클러터 환경에서 방공 레이다 표적 탐지 및 추적 시뮬레이션

Jeong-Hun Nam, Il-Suek Koh, Seung Hyo Park, Jong Min Lee 남정훈, 고일석, 박승효, 이종민

J. Korean Inst. Electromagn. Eng. Sci. 2020;31(8):738-745.
https://doi.org/10.5515/KJKIEES.2020.31.8.010

This paper proposes a target detection and tracking simulation algorithm for an air defense radar compatible with the real-time simulator of vsTasker. Searching spaces are divided based on practical radar specifications such as the radar antenna beam, pulse repetition time, and revolutions per minute. Time-series data of the position corresponding to the movement of the airborne target are generated. A detection error is randomly generated depending on the signal-to-noise ratio and in a high-density clutter environment; the distribution of refl...
단편논문/SHORT PAPER

Aug 31, 2020

Method to Convert Perforated Metal Surface to Equivalent Medium
도체 타공면의 등가 매질 변환 방법에 대한 연구

Hoseong Lee, Yeong-Hoon Noh, Hyeong Rae Im, Chang-gyun Kim, Yong-Woo Park, Kil-Soo Jeong, Jong-Gwan Yook 이호성, 노영훈, 임형래, 김창균, 박용우, 정길수, 육종관

J. Korean Inst. Electromagn. Eng. Sci. 2020;31(8):746-749.
https://doi.org/10.5515/KJKIEES.2020.31.8.011

In this paper, a method to convert a perforated surface into an equivalent medium is proposed in order to address the difficulties faced when evaluating the perforated surfaces of lattice structures in the electromagnetic analysis of large structures. The target of conversion is a honeycomb-perforated metal surface primarily included in the enclosure, which is one of the solutions to the electromagnetic pulse threat. The electrical properties of the honeycomb-perforated metal surface are extracted using the conventional method of extracting the...

CURRENT ISSUE: Aug 2020, Vol. 31 , No. 8

특집논문/SPECIAL EDITION Optimization of a 36-Element Broadband Direction-Finding Antenna Array Using Printed Vivaldi Array Elements with Extended Flares 확장 개구면의 인쇄형 비발디를 이용한 36소자 광대역 방향 탐지 배열안테나 최적화 Tae Heung Lim, Doyoung Jang, Seul-Gi Park, Hosung Choo 임태흥, 장도영, 박슬기, 추호성 J. Korean Inst. Electromagn. Eng. Sci. 2020;31(8):655-662. https://doi.org/10.5515/KJKIEES.2020.31.8.001 HTML PDF PubReader	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
특집논문/SPECIAL EDITION Initial Beam Forming for Active Phased Array Antenna Systems 능동위상배열안테나 시스템의 초기 빔 형성에 관한 연구 Jinwoo Jung, Taehwan Joo 정진우, 주태환 J. Korean Inst. Electromagn. Eng. Sci. 2020;31(8):677-687. https://doi.org/10.5515/KJKIEES.2020.31.8.003 HTML PDF PubReader	특집논문/SPECIAL EDITION 5 GHz UAV Array Antenna Design with a 3×4 Reconfigurable Feeding Network for Wide Elevation Coverage 넓은 앙각 커버리지를 위한 3×4 재구성 급전회로를 갖는 5 GHz 무인항공기용 배열 안테나 설계 Ye-Yeong Jeong, Dong-Geun Seo, Wang-Sang Lee 정예영, 서동근, 이왕상 J. Korean Inst. Electromagn. Eng. Sci. 2020;31(8):688-692. https://doi.org/10.5515/KJKIEES.2020.31.8.004 HTML PDF PubReader
특집논문/SPECIAL EDITION Low Side-Lobe Beamforming Antenna for Earth Stations in Motion 이동형 지구국을 위한 저부엽 빔 형성 안테나에 관한 연구 Hyeonjong Jung, Jinwoo Jung, Yeongseog Lim 정현종, 정진우, 임영석 J. Korean Inst. Electromagn. Eng. Sci. 2020;31(8):693-700. https://doi.org/10.5515/KJKIEES.2020.31.8.005 HTML PDF PubReader	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
특집논문/SPECIAL EDITION Switched Array Antenna Beamforming for Low-Power IoT Wireless Communication 저전력 IoT 무선통신을 위한 스위치 배열 안테나 빔포밍 Byung-Jun Jang, Jihao Rong, Hosung Choo 장병준, 용지호, 추호성 J. Korean Inst. Electromagn. Eng. Sci. 2020;31(8):713-720. https://doi.org/10.5515/KJKIEES.2020.31.8.007 HTML PDF PubReader	특집논문/SPECIAL EDITION Transmit Diversity with Single Transmitter Using Switch and 180° Hybrid 스위치와 180° 하이브리드를 이용한 단일 송신기 송신 다이버시티 Hyungoo Yoon, Byung-Jun Jang 윤현구, 장병준 J. Korean Inst. Electromagn. Eng. Sci. 2020;31(8):721-728. https://doi.org/10.5515/KJKIEES.2020.31.8.008 HTML PDF PubReader
논문/REGULAR PAPERS Quality Improvement of Synthetic Aperture Radar Images in Curved-Orbit Geometry Using a Post-Focusing Algorithm 곡선기하에서의 SAR 영상품질 향상을 위한 후처리 알고리즘 연구 Byung-Soo Kang, Keewoong Lee 강병수, 이기웅 J. Korean Inst. Electromagn. Eng. Sci. 2020;31(8):729-737. https://doi.org/10.5515/KJKIEES.2020.31.8.009 HTML PDF PubReader	논문/REGULAR PAPERS Target Detection and Tracking Simulation of Air Defense Radar in High-Density Clutter Environments Using a Real-time Simulator 실시간 시뮬레이터를 이용한 고밀도 클러터 환경에서 방공 레이다 표적 탐지 및 추적 시뮬레이션 Jeong-Hun Nam, Il-Suek Koh, Seung Hyo Park, Jong Min Lee 남정훈, 고일석, 박승효, 이종민 J. Korean Inst. Electromagn. Eng. Sci. 2020;31(8):738-745. https://doi.org/10.5515/KJKIEES.2020.31.8.010 HTML PDF PubReader
단편논문/SHORT PAPER Method to Convert Perforated Metal Surface to Equivalent Medium 도체 타공면의 등가 매질 변환 방법에 대한 연구 Hoseong Lee, Yeong-Hoon Noh, Hyeong Rae Im, Chang-gyun Kim, Yong-Woo Park, Kil-Soo Jeong, Jong-Gwan Yook 이호성, 노영훈, 임형래, 김창균, 박용우, 정길수, 육종관 J. Korean Inst. Electromagn. Eng. Sci. 2020;31(8):746-749. https://doi.org/10.5515/KJKIEES.2020.31.8.011 HTML PDF PubReader

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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 3	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 3
논문/REGULAR PAPERS Ground Moving Target’s Velocity Estimation in SAR-GMTI SAR-GMTI에서 지상이동표적의 속도 추정 기법 Chang-Sik Bae, Hyeon-Mu Jeon, Dong-Hyeuk Yang, Hoon-Gee Yang 배창식, 전현무, 양동혁, 양훈기 J. Korean Inst. Electromagn. Eng. Sci. 2017;28(2):139-146. https://doi.org/10.5515/KJKIEES.2017.28.2.139 HTML PDF PubReader Cited by 3	논문/REGULAR PAPERS Study on the Compact K-Band Radar for Detecting the Approaching Target above Ground 지상 접근 표적 감지를 위한 초소형 K-대역 레이다 연구 Jong-Soo Ha, Jin-Eep Roh, Jae-Hyun Choi, Han-Jin Lee, Young-Sik Park 하종수, 노진입, 최재현, 이한진, 박영식 J. Korean Inst. Electromagn. Eng. Sci. 2017;28(4):309-317. https://doi.org/10.5515/KJKIEES.2017.28.4.309 HTML PDF PubReader Cited by 3