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.
논문/REGULAR PAPERS

Jun 30, 2020

Design of an Interdigital Diplexer for RF Front-End
RF 전치단용 인터디지털 다이플렉서 설계

Sangrok Lee, Choul-Young Kim 이상록, 김철영

J. Korean Inst. Electromagn. Eng. Sci. 2020;31(6):487-494.
https://doi.org/10.5515/KJKIEES.2020.31.6.487

In this paper, we propose a diplexer design method and present the design result using it. Along with a series of synthesis processes of a filter, it indicates the limitations of the traditional process. To overcome the limitations, two five-stage Chebyshev interdigital band pass filters are designed with parameters of resonance frequency, coupling coefficient between resonators, and external quality factors of input/output including the antenna connection obtained through Electromagnetic simulation from the beginning of the design. The tuning ...
논문/REGULAR PAPERS

Jun 30, 2020

Design of a Conformal Rx Phased Array Antenna System for Ku-Band Satellite Communications
Ku 대역 위성통신용 형상적응형 수신위상배열 안테나시스템의 설계

Taehwan Joo, Kichul Kim, Youngdam Kim, Chanho Hwang, Jongwoo Seo 주태환, 김기철, 김영담, 황찬호, 서종우

J. Korean Inst. Electromagn. Eng. Sci. 2020;31(6):495-509.
https://doi.org/10.5515/KJKIEES.2020.31.6.495

In this paper, we describe the design, manufacture, and performance test results of a highly integrated Rx conformal phased array antenna for Ku band satellite communication. The proposed Rx phased array antenna comprises 64 tile phased array antennas and is connected to a sector unit in 16 tiles. Additionally, SES are connected to a beam steering unit for controls and signal processing. The results of the performance test of the Rx antenna system revealed that a G/T of 10 dB/K and beam pointing accuracy of 0.3° were achieved. Therefore, the...
논문/REGULAR PAPERS

Jun 30, 2020

Lowering Effective Dielectric Constant Using Drilled Prepreg
프리프레그 가공을 통한 인쇄회로 기판의 유효 유전상수 하향 조정

Wonmo Yang, Dong Gun Kam 양원모, 감동근

J. Korean Inst. Electromagn. Eng. Sci. 2020;31(6):510-516.
https://doi.org/10.5515/KJKIEES.2020.31.6.510

As electronic devices become more compact, the thickness of the layer in printed circuit boards(PCBs) decreases, and the characteristic impedance of transmission lines with a minimum allowable trace width often becomes less than 50 Ω. Reducing the minimum trace width or switching to a dielectric with lower dielectric constant is prohibitive owing to increased manufacturing costs. We propose a new way of reducing the effective dielectric constant by drilling holes in prepreg. We perform measurements and simulations to verify the effectiveness...
논문/REGULAR PAPERS

Jun 30, 2020

Frequency Synthesizer Using a Frequency-Locked Loop
주파수 잠금회로(FLL)를 이용한 주파수 합성기

Ho-Seok Shim, Jin-Seong Roh, Seo-Yeong Mun, Kyung-Whan Yeom 심호석, 노진성, 문서영, 염경환

J. Korean Inst. Electromagn. Eng. Sci. 2020;31(6):517-525.
https://doi.org/10.5515/KJKIEES.2020.31.6.517

Unlike conventional frequency-locked loop(FLL) oscillators, in this paper, a novel FLL-frequency synthesizer(FLL-FS) is proposed using a resonator with a resonance frequency f_L lower than the oscillation frequency. The proposed FLL-FS oscillates at nf_L(n is an integer), and comprises a voltage-controlled oscillator(VCO), frequency divider, and frequency detector(FD). To verify the feasibility of the proposed FLL-FS structure, a prototype FLL-FS is presented. The selected r...
논문/REGULAR PAPERS

Jun 30, 2020

Design of a 2.45 GHz PLL and Analysis of Frequency/Phase Error
2.45 GHz PLL 설계 및 주파수와 위상 오차 분석

Hyun-Jin Kim, Ye-Rim Heo, Yun-Soo Lee, Jin-Joo Choi 김현진, 허예림, 이윤수, 최진주

J. Korean Inst. Electromagn. Eng. Sci. 2020;31(6):526-534.
https://doi.org/10.5515/KJKIEES.2020.31.6.526

This paper concerns a PLL design operating at 2.45 GHz and a method for checking frequency and phase errors over time. During the design process, the design method had a natural frequency (ω_n) of 33,800 rad/s and a damping ratio (ζ) of 0.53 according to a generally known method of designing a Type-II PLL. Owing to production, when the PLL of VCO(voltage controlled oscillator) was added, phase noise decreased by 22 dB and 58 dB at 10 kHz and 150 kHz offset, respectively. In the experimental stage o...
논문/REGULAR PAPERS

Jun 30, 2020

Design and Fabrication of a Decoupler to Conduct PCI Verification Test of a HEMP Filter Installed in a Protection Facility
방호시설에 설치된 HEMP 필터의 전도성 PCI 검증시험을 위한 디커플러 설계 및 제작

Young-Jin Kim, Yong Bae Park 김영진, 박용배

J. Korean Inst. Electromagn. Eng. Sci. 2020;31(6):535-541.
https://doi.org/10.5515/KJKIEES.2020.31.6.535

When a high-altitude electromagnetic pulse(HEMP) power line filter is installed in a protection facility, the pulsed current injection (PCI) acceptance test is performed. A verification test is required even if the acceptance criteria are met. The injection current of the PCI generator may damage the external power source because a verification test is performed while the HEMP filter is connected to the power supply. Current decouplers have limited capacity and use; thus, they should be designed according to the actual environment. In this stud...
논문/REGULAR PAPERS

Jun 30, 2020

Analysis of HEMP Coupling Signal for a Coaxial Cable Considering Various Cable Parameters
다양한 케이블 변수에 따른 동축 케이블의 HEMP 결합 신호 해석

Sunghui Jo, Yeong-Hoon Noh, Chang-gyun Kim, Yong-Woo Park, Dong-Hyeok Lee, Kil-Soo Jeong, Jong-Gwan Yook 조성희, 노영훈, 김창균, 박용우, 이동혁, 정길수, 육종관

J. Korean Inst. Electromagn. Eng. Sci. 2020;31(6):542-554.
https://doi.org/10.5515/KJKIEES.2020.31.6.542

In this study, we analyze the coupled signal for various cable parameters when a high-altitude electromagnetic pulse(HEMP) is incident on a cable connected to an EMP protection shelter. The structural conditions or operating environments vary depending on the purpose of use, such as to supply power or transmit communication signals to the internal devices of the shelter. Using the cable equivalent model and simulations, we interpret the coupled signal that is induced in the cable according to the presence or absence of a shielding layer, number...
논문/REGULAR PAPERS

Jun 30, 2020

Target Velocity Estimation Method Using the Single-Pulse LFM Waveform
단일 펄스 LFM 파형에서 표적 속도 추정 방법

Tae-Hyung Kim, June-Hyune Park, Joon-Tae Park, Sung-Ho Park, Seong-Hyun Ryu, Yeon-Duk Kang 김태형, 박준현, 박준태, 박성호, 유성현, 강연덕

J. Korean Inst. Electromagn. Eng. Sci. 2020;31(6):555-562.
https://doi.org/10.5515/KJKIEES.2020.31.6.555

Linear frequency modulation(LFM) waveforms in pulsed radars are extensively used owing to their excellent Doppler tolerance and low side-lobe level characteristics after pulse compressions. On the contrary, it is difficult to determine target Doppler velocity from single-pulse LFM waveforms because of their excellent Doppler tolerance. If it is possible to detect the range and velocity of targets with only single-pulse transmission and reception, multi-function radars can gain advantages in terms of resource management. In this paper, we propos...
단편논문/SHORT PAPER

Jun 30, 2020

Low Noise Amplifier with a Merged Duplexer
듀플렉서를 통합한 65-nm CMOS 저잡음 증폭기

Jeong-Taek Lim, Han-Woong Choi, Taehwan Joo, Choul-Young Kim 임정택, 최한웅, 주태환, 김철영

J. Korean Inst. Electromagn. Eng. Sci. 2020;31(6):563-566.
https://doi.org/10.5515/KJKIEES.2020.31.6.563

In this paper, we present a low noise amplifier with a merged duplexer. The input matching network of the electrical balance duplexer(EBD) and the low-noise amplifier were integrated to minimize input insertion loss in the RX path. The low noise amplifier was designed with a differential structure because its input matching network was integrated with the EBD. The first stage of the low-noise amplifier was designed with a common-source structure while considering noise characteristics. The second stage of the low-noise amplifier was designed wi...
단편논문/SHORT PAPER

Jun 30, 2020

Design of an ASTM D4935 Jig with a Low Reflection Loss
낮은 반사손실을 갖는 ASTM D4935 지그 설계

Chanjong Lee, Hyun Ho Park 이찬종, 박현호

J. Korean Inst. Electromagn. Eng. Sci. 2020;31(6):567-570.
https://doi.org/10.5515/KJKIEES.2020.31.6.567

In this paper, the impedance difference and reflection loss occurring at the connection between the coaxial and conical transmission lines of an ASTM D4935 jig used to measure the shielding effectiveness of material sheets are analyzed by theoretical equations and numerical simulation. In addition, transition structures that minimize the impedance mismatching and reflection loss in the two transmission lines are proposed and verified by the numerical analysis.

CURRENT ISSUE: Jun 2020, Vol. 31 , No. 6

논문/REGULAR PAPERS Design of an Interdigital Diplexer for RF Front-End RF 전치단용 인터디지털 다이플렉서 설계 Sangrok Lee, Choul-Young Kim 이상록, 김철영 J. Korean Inst. Electromagn. Eng. Sci. 2020;31(6):487-494. https://doi.org/10.5515/KJKIEES.2020.31.6.487 HTML PDF PubReader	논문/REGULAR PAPERS Design of a Conformal Rx Phased Array Antenna System for Ku-Band Satellite Communications Ku 대역 위성통신용 형상적응형 수신위상배열 안테나시스템의 설계 Taehwan Joo, Kichul Kim, Youngdam Kim, Chanho Hwang, Jongwoo Seo 주태환, 김기철, 김영담, 황찬호, 서종우 J. Korean Inst. Electromagn. Eng. Sci. 2020;31(6):495-509. https://doi.org/10.5515/KJKIEES.2020.31.6.495 HTML PDF PubReader
논문/REGULAR PAPERS Lowering Effective Dielectric Constant Using Drilled Prepreg 프리프레그 가공을 통한 인쇄회로 기판의 유효 유전상수 하향 조정 Wonmo Yang, Dong Gun Kam 양원모, 감동근 J. Korean Inst. Electromagn. Eng. Sci. 2020;31(6):510-516. https://doi.org/10.5515/KJKIEES.2020.31.6.510 HTML PDF PubReader	논문/REGULAR PAPERS Frequency Synthesizer Using a Frequency-Locked Loop 주파수 잠금회로(FLL)를 이용한 주파수 합성기 Ho-Seok Shim, Jin-Seong Roh, Seo-Yeong Mun, Kyung-Whan Yeom 심호석, 노진성, 문서영, 염경환 J. Korean Inst. Electromagn. Eng. Sci. 2020;31(6):517-525. https://doi.org/10.5515/KJKIEES.2020.31.6.517 HTML PDF PubReader
논문/REGULAR PAPERS Design of a 2.45 GHz PLL and Analysis of Frequency/Phase Error 2.45 GHz PLL 설계 및 주파수와 위상 오차 분석 Hyun-Jin Kim, Ye-Rim Heo, Yun-Soo Lee, Jin-Joo Choi 김현진, 허예림, 이윤수, 최진주 J. Korean Inst. Electromagn. Eng. Sci. 2020;31(6):526-534. https://doi.org/10.5515/KJKIEES.2020.31.6.526 HTML PDF PubReader	논문/REGULAR PAPERS Design and Fabrication of a Decoupler to Conduct PCI Verification Test of a HEMP Filter Installed in a Protection Facility 방호시설에 설치된 HEMP 필터의 전도성 PCI 검증시험을 위한 디커플러 설계 및 제작 Young-Jin Kim, Yong Bae Park 김영진, 박용배 J. Korean Inst. Electromagn. Eng. Sci. 2020;31(6):535-541. https://doi.org/10.5515/KJKIEES.2020.31.6.535 HTML PDF PubReader
논문/REGULAR PAPERS Analysis of HEMP Coupling Signal for a Coaxial Cable Considering Various Cable Parameters 다양한 케이블 변수에 따른 동축 케이블의 HEMP 결합 신호 해석 Sunghui Jo, Yeong-Hoon Noh, Chang-gyun Kim, Yong-Woo Park, Dong-Hyeok Lee, Kil-Soo Jeong, Jong-Gwan Yook 조성희, 노영훈, 김창균, 박용우, 이동혁, 정길수, 육종관 J. Korean Inst. Electromagn. Eng. Sci. 2020;31(6):542-554. https://doi.org/10.5515/KJKIEES.2020.31.6.542 HTML PDF PubReader	논문/REGULAR PAPERS Target Velocity Estimation Method Using the Single-Pulse LFM Waveform 단일 펄스 LFM 파형에서 표적 속도 추정 방법 Tae-Hyung Kim, June-Hyune Park, Joon-Tae Park, Sung-Ho Park, Seong-Hyun Ryu, Yeon-Duk Kang 김태형, 박준현, 박준태, 박성호, 유성현, 강연덕 J. Korean Inst. Electromagn. Eng. Sci. 2020;31(6):555-562. https://doi.org/10.5515/KJKIEES.2020.31.6.555 HTML PDF PubReader
단편논문/SHORT PAPER Low Noise Amplifier with a Merged Duplexer 듀플렉서를 통합한 65-nm CMOS 저잡음 증폭기 Jeong-Taek Lim, Han-Woong Choi, Taehwan Joo, Choul-Young Kim 임정택, 최한웅, 주태환, 김철영 J. Korean Inst. Electromagn. Eng. Sci. 2020;31(6):563-566. https://doi.org/10.5515/KJKIEES.2020.31.6.563 HTML PDF PubReader	단편논문/SHORT PAPER Design of an ASTM D4935 Jig with a Low Reflection Loss 낮은 반사손실을 갖는 ASTM D4935 지그 설계 Chanjong Lee, Hyun Ho Park 이찬종, 박현호 J. Korean Inst. Electromagn. Eng. Sci. 2020;31(6):567-570. https://doi.org/10.5515/KJKIEES.2020.31.6.567 HTML PDF PubReader

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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 3	논문/REGULAR PAPERS Forward-Looking Synthetic Inverse Scattering Image Formation for a Vehicle with Curved Motion Based on Time Domain Correlation 시간 영역 상관관계 기법을 통한 곡선운동을 하는 차량용 전방 관측 역산란 합성 영상 형성 Hyukjung Lee, Joohwan Chun, Sunghyun Hwang, Sungjin You, Woojin Byun 이혁중, 전주환, 황성현, 유성진, 변우진 J. Korean Inst. Electromagn. Eng. Sci. 2019;30(1):60-69. https://doi.org/10.5515/KJKIEES.2019.30.1.60 HTML PDF PubReader Cited by 2