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

Jan 31, 2021

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

Utilizing the frequency spectrum efficiently is critical to properly respond to increasing frequency demands owing to the rapid spread of wireless devices and the latest broadband technology trends. However, because all wireless devices emit radio waves into air, frequency interference with other wireless devices can be caused. If the use of these wireless devices is restricted owing to uncertain fears of such frequency interference, efficient utilization of the frequency spectrum becomes difficult. Therefore, it is crucial to quantitatively an...
특집논문/SPECIAL EDITION

Jan 31, 2021

Sub-Terahertz High-Gain Antenna for Long-Distance Transmission
장거리 전송을 위한 서브 테라헤르츠 고이득 안테나

Jung-Nam Lee, Kwang Seon Kim, Jaeho Jung, Seok Bong Hyun, Young-Kyun Cho 이정남, 김광선, 정재호, 현석봉, 조영균

J. Korean Inst. Electromagn. Eng. Sci. 2021;32(1):10-18.
https://doi.org/10.5515/KJKIEES.2021.32.1.10

In this study, a sub-terahertz high-gain antenna for long-distance transmission in the 200-GHz frequency band is designed, fabricated, and measured. Three types of antennas are fabricated, namely, a horn reflector antenna, cassegrain antenna, and an elliptical cassegrain antenna for beam-width expansion, and a measurement environment is configured to measure antenna performance. Additionally, the reception power level and radiation pattern are measured. As a result of the measurement, antenna gains of 36, 52, and 33.3 dBi and beam widths of 3.5...
특집논문/SPECIAL EDITION

Jan 31, 2021

Bandpass-Filtering Coupled-Line Power Divider with Broadband Arbitrary Phase Difference
광대역 임의의 위상차를 갖는 대역통과 결합 선로 전력분배기

Suyeon Kim, Girdhari Chaudhary, Yongchae Jeong 김수연, ChaudharyGirdhari, 정용채

J. Korean Inst. Electromagn. Eng. Sci. 2021;32(1):19-24.
https://doi.org/10.5515/KJKIEES.2021.32.1.19

This paper presents an approach for the design of a bandpass-filtering coupled-line power divider with a broadband arbitrary phase difference between two paths. The proposed circuit consists of a Wilkinson power divider and N^th-order coupled line bandpass filters(BPFs) having different fractional bandwidths(FBWs). Through control of the FBWs of the N^th-order BPFs, a constant phase difference over broadband can be obtained. From the analysis, the design equations of the proposed circuit are...
특집논문/SPECIAL EDITION

Jan 31, 2021

Measurement and Application of the Economic Value of Radio Spectrum
주파수의 경제적 가치 측정 방법과 적용

Hee Sub Byun, Kwon-Hum Yeon, Ki Won Kim 변희섭, 연권흠, 김기원

J. Korean Inst. Electromagn. Eng. Sci. 2021;32(1):25-34.
https://doi.org/10.5515/KJKIEES.2021.32.1.25

A market-based management system based on economic value is being actively considered as a policy alternative for the efficient use of radio spectrum. However, there exist insufficient cases for evaluating the economic value of radio spectrum in Korea. To address these policy demands, this study proposes alternatives to evaluate the economic value of radio spectrum. The auction, profit approach, benchmark approach, opportunity-cost approach, and production function approach can be considered as alternatives. Moreover, the applications of radio ...
특집논문/SPECIAL EDITION

Jan 31, 2021

Spectrum Sensing Technique for OFDM Signals
OFDM 신호에 대한 스펙트럼 센싱 기술

Han-Seok Bae, Young-Sik Kim, Chang-Heon Lim, Chang-Joo Kim, Yoon-Seok Cho 배한석, 김영식, 임창헌, 김창주, 조윤석

J. Korean Inst. Electromagn. Eng. Sci. 2021;32(1):35-41.
https://doi.org/10.5515/KJKIEES.2021.32.1.35

This paper presents a machine learning (ML) algorithm to detect orthogonal frequency-division multiplexing (OFDM) signals. Spectrum sensing is a key technology in cognitive radio communication, which enhances spectral efficiency. Recently, signals transmitted and received by wireless communication systems have been based on OFDM. These signals contain a pilot signal for channel calibration, which can be detected using a spectral correlation function (SCF). In this process, the FAM algorithm is applied for efficient SCF operation herein. The exi...
특집논문/SPECIAL EDITION

Jan 31, 2021

Convolutional-Neural-Network-Based EBG Structural Design for High-Speed PCB Noise Suppression
Convolutional Neural Network 기반 EBG 구조 설계를 통한 고속 PCB 노이즈 저감

Seongbo Sim, Myunghoi Kim 심성보, 김명회

J. Korean Inst. Electromagn. Eng. Sci. 2021;32(1):42-50.
https://doi.org/10.5515/KJKIEES.2021.32.1.42

With rapid advances in technology, the operating frequencies of digital systems have increased to several GHz bands. This has led to an increase in simultaneous switching noise(SSN). To reduce SSN, electromagnetic bandgap(EBG) structures have been intensively studied. One of the critical steps in the design of an EBG structure is to predict the stopband that reduces SSN. Existing methods include using a 3D electromagnetic field simulation program or equations based on the Floquet theory. However, these have limitations. In this study, we verifi...
논문/REGULAR PAPERS

Jan 31, 2021

Tapered Slot Antenna with 28 GHz Band-Stop and Enhanced Front-Back Ratio Characteristics Applied to a Liquid Crystal Polymer Substrate for Ka-Band
액정 폴리머 기판을 적용한 28 GHz 차단대역 및 향상된 전후방비 특성을 갖는 Ka 대역 테이퍼드 슬롯 안테나

Jiyeon Lee, Sehwan Choi, Jongin Ryu, Jaeyoung Lee 이지연, 최세환, 유종인, 이재영

J. Korean Inst. Electromagn. Eng. Sci. 2021;32(1):51-55.
https://doi.org/10.5515/KJKIEES.2021.32.1.51

In this study, a tapered slot antenna with a band-stop characteristic in the Ka-band is proposed and measured. A 4-layer liquid crystal polymer substrate with a thickness of 150 μm was used to implement the same substrate as a radar transmit-receive module. To stop the 28 GHz band used for 5G communication, a split ring resonator structure is added to the feed line and corrugations are formed on both sides of the antenna. Through these structures, the proposed antenna has a 28 GHz band-stop with a measured 1.8 dB return loss...
논문/REGULAR PAPERS

Jan 31, 2021

Design and Fabrication of Ka-Band 50-W Class Solid-State Power Amplifier
Ka대역 50 W급 고출력증폭기(SSPA) 설계 및 제작

Jae-Sub Han, Joo-Yong Jung, Seong-Min Park, Kyung-Deok Yu, Bo-Gyun Kim, Hyo-Chul Kim 한재섭, 정주용, 박성민, 유경덕, 김보균, 김효철

J. Korean Inst. Electromagn. Eng. Sci. 2021;32(1):56-65.
https://doi.org/10.5515/KJKIEES.2021.32.1.56

This paper presents a 50-W class solid-state power amplifier (SSPA) operating in the Ka-band for use in radar, seeker, and synthetic aperture radar applications. We first designed a unit high-power amplifier (HPA) module utilizing a 10-W class monolithic microwave integrated circuit based on GaN technology and then combined eight of these HPA modules to generate more than 50 W of output power. A waveguide radial combiner was developed to combine all the HPAs such that the insertion loss was minimized; the measured insertion loss of the waveguid...
논문/REGULAR PAPERS

Jan 31, 2021

Ballistic Coefficient Estimation for Classification of Projectiles
발사체 분류를 위한 탄도계수 추정 방법 비교

You Geun Oh, Joohwan Chun, Kwang Yong Jung, Nam Moon Kim 오유근, 전주환, 정광용, 김남문

J. Korean Inst. Electromagn. Eng. Sci. 2021;32(1):66-74.
https://doi.org/10.5515/KJKIEES.2021.32.1.66

The ballistic coefficient is a measure of a projectile’s ability to overcome air resistance. Because the motion equations of the projectile are functions of the ballistic coefficient, several studies estimating the projectile’s ballistic coefficient have been conducted to track its trajectory. In this paper, two methods are proposed to estimate the ballistic coefficient for classification of the projectile. The primary techniques used are the extended Kalman filter and ordinary differential equation parameter estimation. The true projectile...
논문/REGULAR PAPERS

Jan 31, 2021

ISAR Imaging Processing Chain Combined with RCMC and RMC for Self-Rotating Targets
자가-회전 운동을 겪는 표적의 고품질 ISAR 영상 형성을 위한 RMC와 결합된 RCMC 프로세싱 체인

Bo-Hyun Ryu, Byung-Soo Kang, Ki-Bong Kang, Myung-Jun Lee, Kyung-Tae Kim 유보현, 강병수, 강기봉, 이명준, 김경태

J. Korean Inst. Electromagn. Eng. Sci. 2021;32(1):75-84.
https://doi.org/10.5515/KJKIEES.2021.32.1.75

In ISAR imaging, a self-rotating target induces a nonuniform rotational motion (RM) between the radar and the target. Because the non-uniform RM results in the range cell migration (RCM) in the range-compressed data and blurring effects in the obtained ISAR images, it is highly desirable to properly compensate for the non-uniform RM of the target for the purpose of focusing ISAR images. Fortunately, in conventional ISAR imaging methods, the aforementioned effects due to the non-uniform RM can be eliminated by performing RCMC and RMC, respective...
논문/REGULAR PAPERS

Jan 31, 2021

Transceiver Structure Design and Alignment Method for the L-Band Full Digital Array for Multi-Function Radar
L대역 MFR용 완전디지털배열안테나의 송수신 구조 설계 및 정렬 방법

Jae-Hwan Lim, Se-Jun Park, Sung-Hwan Hwang, Joung-Myoung Joo, Hyung-Suk Jin, Min-Sang Kwon, Woo-Sung Kim 임재환, 박세준, 황성환, 주정명, 진형석, 권민상, 김우성

J. Korean Inst. Electromagn. Eng. Sci. 2021;32(1):85-96.
https://doi.org/10.5515/KJKIEES.2021.32.1.85

Currently, antenna technology is developing to a full digital array structure from the previous active phase array antenna. Thus far, it has been challenging to build a full digital array antenna, because making a small transceiver with an analog digital converter for each array element has technical limitations in semiconductor devices. However, it is now possible to fabricate a digital TR-module having a transceiver and analog digital converter for each element in the L-band. In this thesis, the results of the L-band digital TR-module and ali...
단편논문/SHORT PAPER

Jan 31, 2021

Measurement of Characteristics of W-Band Receiver Module
W-대역 수신기 모듈의 특성 측정

Tae-Weon Kang, Jae-Yong Kwon, Young-Gon Kim, Wansik Kim, Mihui Seo, Sosu Kim 강태원, 권재용, 김영곤, 김완식, 서미희, 김소수

J. Korean Inst. Electromagn. Eng. Sci. 2021;32(1):97-100.
https://doi.org/10.5515/KJKIEES.2021.32.1.97

In this paper, a W-band receiver module is fabricated and its characteristics are measured. To evaluate the noise characteristics of the module that includes an embedded mixer, the noise-measurement part of a signal analyzer is calibrated using two standard noise sources: a W-band waveguide and a 3.5-mm coaxial noise source. The image rejection ratio and P_1dB,out at the intermediate frequency (IF), are measured using the spectrum analysis function of the signal analyzer. In the frequency range of f_c

CURRENT ISSUE: Jan 2021, Vol. 32 , No. 1

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	특집논문/SPECIAL EDITION Sub-Terahertz High-Gain Antenna for Long-Distance Transmission 장거리 전송을 위한 서브 테라헤르츠 고이득 안테나 Jung-Nam Lee, Kwang Seon Kim, Jaeho Jung, Seok Bong Hyun, Young-Kyun Cho 이정남, 김광선, 정재호, 현석봉, 조영균 J. Korean Inst. Electromagn. Eng. Sci. 2021;32(1):10-18. https://doi.org/10.5515/KJKIEES.2021.32.1.10 HTML PDF PubReader
특집논문/SPECIAL EDITION Bandpass-Filtering Coupled-Line Power Divider with Broadband Arbitrary Phase Difference 광대역 임의의 위상차를 갖는 대역통과 결합 선로 전력분배기 Suyeon Kim, Girdhari Chaudhary, Yongchae Jeong 김수연, ChaudharyGirdhari, 정용채 J. Korean Inst. Electromagn. Eng. Sci. 2021;32(1):19-24. https://doi.org/10.5515/KJKIEES.2021.32.1.19 HTML PDF PubReader	특집논문/SPECIAL EDITION Measurement and Application of the Economic Value of Radio Spectrum 주파수의 경제적 가치 측정 방법과 적용 Hee Sub Byun, Kwon-Hum Yeon, Ki Won Kim 변희섭, 연권흠, 김기원 J. Korean Inst. Electromagn. Eng. Sci. 2021;32(1):25-34. https://doi.org/10.5515/KJKIEES.2021.32.1.25 HTML PDF PubReader
특집논문/SPECIAL EDITION Spectrum Sensing Technique for OFDM Signals OFDM 신호에 대한 스펙트럼 센싱 기술 Han-Seok Bae, Young-Sik Kim, Chang-Heon Lim, Chang-Joo Kim, Yoon-Seok Cho 배한석, 김영식, 임창헌, 김창주, 조윤석 J. Korean Inst. Electromagn. Eng. Sci. 2021;32(1):35-41. https://doi.org/10.5515/KJKIEES.2021.32.1.35 HTML PDF PubReader	특집논문/SPECIAL EDITION Convolutional-Neural-Network-Based EBG Structural Design for High-Speed PCB Noise Suppression Convolutional Neural Network 기반 EBG 구조 설계를 통한 고속 PCB 노이즈 저감 Seongbo Sim, Myunghoi Kim 심성보, 김명회 J. Korean Inst. Electromagn. Eng. Sci. 2021;32(1):42-50. https://doi.org/10.5515/KJKIEES.2021.32.1.42 HTML PDF PubReader
논문/REGULAR PAPERS Tapered Slot Antenna with 28 GHz Band-Stop and Enhanced Front-Back Ratio Characteristics Applied to a Liquid Crystal Polymer Substrate for Ka-Band 액정 폴리머 기판을 적용한 28 GHz 차단대역 및 향상된 전후방비 특성을 갖는 Ka 대역 테이퍼드 슬롯 안테나 Jiyeon Lee, Sehwan Choi, Jongin Ryu, Jaeyoung Lee 이지연, 최세환, 유종인, 이재영 J. Korean Inst. Electromagn. Eng. Sci. 2021;32(1):51-55. https://doi.org/10.5515/KJKIEES.2021.32.1.51 HTML PDF PubReader	논문/REGULAR PAPERS Design and Fabrication of Ka-Band 50-W Class Solid-State Power Amplifier Ka대역 50 W급 고출력증폭기(SSPA) 설계 및 제작 Jae-Sub Han, Joo-Yong Jung, Seong-Min Park, Kyung-Deok Yu, Bo-Gyun Kim, Hyo-Chul Kim 한재섭, 정주용, 박성민, 유경덕, 김보균, 김효철 J. Korean Inst. Electromagn. Eng. Sci. 2021;32(1):56-65. https://doi.org/10.5515/KJKIEES.2021.32.1.56 HTML PDF PubReader
논문/REGULAR PAPERS Ballistic Coefficient Estimation for Classification of Projectiles 발사체 분류를 위한 탄도계수 추정 방법 비교 You Geun Oh, Joohwan Chun, Kwang Yong Jung, Nam Moon Kim 오유근, 전주환, 정광용, 김남문 J. Korean Inst. Electromagn. Eng. Sci. 2021;32(1):66-74. https://doi.org/10.5515/KJKIEES.2021.32.1.66 HTML PDF PubReader	논문/REGULAR PAPERS ISAR Imaging Processing Chain Combined with RCMC and RMC for Self-Rotating Targets 자가-회전 운동을 겪는 표적의 고품질 ISAR 영상 형성을 위한 RMC와 결합된 RCMC 프로세싱 체인 Bo-Hyun Ryu, Byung-Soo Kang, Ki-Bong Kang, Myung-Jun Lee, Kyung-Tae Kim 유보현, 강병수, 강기봉, 이명준, 김경태 J. Korean Inst. Electromagn. Eng. Sci. 2021;32(1):75-84. https://doi.org/10.5515/KJKIEES.2021.32.1.75 HTML PDF PubReader
논문/REGULAR PAPERS Transceiver Structure Design and Alignment Method for the L-Band Full Digital Array for Multi-Function Radar L대역 MFR용 완전디지털배열안테나의 송수신 구조 설계 및 정렬 방법 Jae-Hwan Lim, Se-Jun Park, Sung-Hwan Hwang, Joung-Myoung Joo, Hyung-Suk Jin, Min-Sang Kwon, Woo-Sung Kim 임재환, 박세준, 황성환, 주정명, 진형석, 권민상, 김우성 J. Korean Inst. Electromagn. Eng. Sci. 2021;32(1):85-96. https://doi.org/10.5515/KJKIEES.2021.32.1.85 HTML PDF PubReader	단편논문/SHORT PAPER Measurement of Characteristics of W-Band Receiver Module W-대역 수신기 모듈의 특성 측정 Tae-Weon Kang, Jae-Yong Kwon, Young-Gon Kim, Wansik Kim, Mihui Seo, Sosu Kim 강태원, 권재용, 김영곤, 김완식, 서미희, 김소수 J. Korean Inst. Electromagn. Eng. Sci. 2021;32(1):97-100. https://doi.org/10.5515/KJKIEES.2021.32.1.97 HTML PDF PubReader

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