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Design and Experiment of a 300 GHz Folded Waveguide Traveling-Wave Tube

Choi, Wonjin , Lee, Ingeun , Shin, Jinwoo , Choi, EunMi

Conference Paper Issue Date2021-04-27 View6

Design and Fabrication of a 300 GHz Modified Sine Waveguide Traveling-Wave Tube Using a Nano Computer Numerical Control Machine File

Choi, Wonjin , Lee, Ingeun , Choi, EunMi

Article Issue Date2017-07 View8

Design and fabrication of a W-band quasi-optical mode generator

Sawant, Ashwini , Choe, Mun Seok , Choi, EunMi

Conference Paper Issue Date2016-10-19 View7

Design and nano-CNC fabrication of modified sine waveguide for 300 GHz traveling-wave tube File

Choi, Wonjin , Lee, Ingeun , Choi, EunMi

Conference Paper Issue Date2017-04-24 View4

Design and Operation of a second harmonic dual mode gyrotron for OAM beam generation

Sawant, Ashwini , 최문석 , 이인근 , 최은미

Conference Paper Issue Date2018-08-23 View12

Design of a Calorimeter for Measurement of High Power Gyrotron

Choi, EunMi , Ashwini, Sawant , Kim, Dongsung , Kim, Sungkook , Kim, Jungho , Bae, Yeongsoon , So, Joonho , Lee, Woosang , Lee, Ingeun , Lee, Inhyuk , et al

Conference Paper Issue Date2014-06-19 View1

Design of a W-band Circular TE03 Mode Generator

Choi, Wonjin , Sawant, Ashwini , Choi, EunMi

Conference Paper Issue Date2015-08-20 View12

Design of an Interaction Cavity for a 100 kW, 200 GHz Gyrotron

Han, Tae Gyu , Sawant, Ashwini , Choi, EunMi

Conference Paper Issue Date2020-08-20 View4

Design of Elliptical Sheet-Beam Electron Gun for 300 GHz Sine Waveguide Traveling-Wave Tube

Choi, Wonjin , Lee, Ingeun , Choi, EunMi

Conference Paper Issue Date2016-10-18 View6

Design study of a 0.4 THz 100 kW pulsed gyrotron File

Choi, Eun Mi

Conference Paper Issue Date2011-02-21 View4

Design Study of a 95GHz, TE62mode Generator

Choi, Eun Mi

Conference Paper Issue Date2012 View3

Design study of a G-band Folded Waveguide Traveling-Wave Tube driven by a Backward-Wave Oscillator

Lee, Ingeun , Sawant, Ashwini , Choi, EunMi

Conference Paper Issue Date2016-08-21 View4

Design study of a MIG electron gun of a 100 kW, 0.4 THz gyrotron oscillator File

Kim, Sung Gug , Sirigiri, Jagadishwar R. , Lee, Woo-Sang , So, Joon-Ho , Choi, Eun Mi

Conference Paper Issue Date2011-10-02 View8

Design Study of a Self-Driving G-band Folded Waveguide Traveling Wave Tube with an Integrated High Input Power

Lee, Ingeun , Sawant, A , So, JoonHo , Hong, Yongjin , Choi, EunMi

Conference Paper Issue Date2016-04-20 View7

Design Study of a Sine Waveguide Circuit for G-band Traveling-Wave Tube

Choi, Wonjin , Choi, EunMi , Hong, Yongjun

Conference Paper Issue Date2016-04-20 View4

Design study of an energy-recirculating G-band self-driving folded waveguide traveling-wave tube File

Lee, Ingeun , Sawant, Ashwini , So, Joonho , Hong, Yongjin , Choi, EunMi

Conference Paper Issue Date2016-04-19 View10

Design Study of an Extended Interaction Oscillator (EIO) for Ka-band Folded Waveguide Traveling-wave Tube (FWTWT)

Choi, EunMi , 이인근 , 최원진

Conference Paper Issue Date2014-11-02 View4

Design study of critical components of second harmonic a 100 kW, 0.4 THz gyrotron oscillator File

Kim, Sung Gug , Sirigiri, Jagadishwar R. , Lee, Woo-Sang , So, Joon-Ho , Choi, Eun Mi

Conference Paper Issue Date2012-09-23 View4

Design study of magnetron injection gun (MIG) for a high power W-band gyrotron

Choi, Eun Mi , None

Conference Paper Issue Date2013 View8

Design study of MIG for dual-band gyrotron File

Lee, Ingeun , Kim, Sung Gug , So, Joonho , Choi, Eun Mi

Conference Paper Issue Date2013-05-21 View4

Design Study of Two-Plane Focusing Periodic Permanent Magnet For a 300 GHz Sheet-Beam Traveling-Wave Tube

최원진 , 이인근 , 최은미

Conference Paper Issue Date2018-08-25 View12

Design Study of Two-Plane Focusing Periodically Cusped Magnets for a 300 GHz Sheet Beam Traveling-Wave Tube File

Choi, Wonjin , Lee, Ingeun , Choi, EunMi , Shin, Jinwoo

Conference Paper Issue Date2019-04-28 View20

Design Study of Y-band Folded Waveguide Backward Wave Oscillator as Input Driver for Traveling Wave Tube Amplifier

Lee, Ingeun , Sawant, Ashwini , Choi, EunMi

Conference Paper Issue Date2016-10-18 View10

Design, Fabrication and Test of a Sine Waveguide Circuit for a 300 GHz Traveling-Wave Tube

최원진 , 이인근 , 최은미

Conference Paper Issue Date2017-08-24 View5

Development of Dual Frequency Gyrotron operating at 142&208 GHz

Han, Taegyu , Choi, Wonjin , Lim, Jinho , Choi, EunMi

Conference Paper Issue Date2023-04-19 View7

Development of high power THz sources and applications

Choi, EunMi

Conference Paper Issue Date2022-12-01 View6

Development of Higher order rotating-mode generator using dielectric rod waveguide at W-band File

Han, Taekyu , Lim, Jinho , Choi, EunMi

Conference Paper Issue Date2022-05-18 View1

Development of the Full Package of Gyrotron Simulation Code File

Sawant, Ashwini , Choi, EunMi

Article Issue Date2018-12 View17

Development of the Second Harmonic 190 GHz Gyrotron for OAM Communication File

Sawant, Ashwini , Lee, Ingeun , Choe, Munseok , Choi, EunMi

Conference Paper Issue Date2019-09-01 View6

Development of the Second Harmonic Dual Mode Gyrotron for OAM Beam Generation File

Sawant, Ashwini , Lee, Ingeun , Choi, EunMi

Conference Paper Issue Date2019-04-28 View13

Development Status of a 142/208 GHz Dual Frequency Gyrotron

Han, Taegyu , Hong Eun, Choi , Choi, EunMi

Conference Paper Issue Date2023-08-22 View7

Direct Real-Time Power Measurement of a High-Power Electron Cyclotron Maser by a Simple One-Point Schottky Detector Signal File

Kim, Sung Gug , Kim, Jung Ho , Kim, Dongsung , Won, Jong-Hyo , Lee, Woo Sang , Yang, Jongwon , Choi, EunMi

Article Issue Date2015-09 View4

Dual band operation of a photonic band gap cavity for 400 GHz gyrotron File

Sawant, Ashwini , Choi, EunMi

Conference Paper Issue Date2016-04-19 View7

Efficiency enhancement of a 1.5-MW, 110-GHz gyrotron with a single-stage depressed collector

Choi, EunMi , Cerfon, A. J. , Mastovsky, I. , Shapiro, M. A. , Sirigiri, J. R. , Temkin, R. J.

Article Issue Date2007-08 View3

Electromagetic and Thermal Analysis of a Millimeter-wave Window

Choi, EunMi , 김동성 , 김우영 , 김정호 , 박해윤 , 소준호 , 양종원 , 오승섭 , 원정효 , 최준호

Conference Paper Issue Date2014-06-19 View3

Error Tolerant Method of Dielectric Permittivity Determination Using a TE₀₁ Mode in a Circular Waveguide at the W-Band File

Choi, Hong Eun , Choi, Wonjin , Simakov, Evgenya I. , Zuboraj, Muhammed , Carlsten, Bruce E. , Choi, EunMi

Article Issue Date2020-02 View15

Evaluation of complex permittivity of the high loss tangent materials at W-band region

Choi, Hong Eun , Choi, EunMi

Conference Paper Issue Date2021-02-17 View2

Excellent photonic-assisted measurement system for high order mode pattern scan in reactive near field File

Lee, Ingeun , Choe, Mun Seok , Lee, Dong-Joon , Choi, EunMi

Conference Paper Issue Date2015-08-24 View9

Experimental observation of the effect of aftercavity interaction in a depressed collector gyrotron oscillator File

Choi, EunMi , Shapiro, M. A. , Sirigiri, J. R. , Temkin, R. J.

Article Issue Date2007-09 View5

Experimental results for a 1.5 MW, 110 GHz gyrotron oscillator with reduced mode competition File

Choi, EunMi , Marchewka, CD , Mastovsky, I , Sirigiri, JR , Shapiro, MA , Temkin, RJ

Article Issue Date2006-02 View7

Experimental Results on a 1.5MW, 110GHz Gyrotron with a Smooth Mirror Mode Converter File

Tax, David S. , Choi, Eunmi M. , Mastovsky, Ivan , Neilson, Jeffrey M. , Shapiro, Michael A. , Sirigiri, Jagadishwar R. , Temkin, Richard J. , Torrezan, Antonio C.

Article Issue Date2011-03 View5

Experimental study on a TE62 to HE11 mode converter via free space Gaussian mode conversion using a

Choi, Eun Mi , None

Conference Paper Issue Date2013 View7

Experimental study on OAM mode antenna misalignment in E-band

Go, Hyun , Sawant, Ashwini , Choi, Wonjin , Moon, Seokju , Choi, EunMi

Conference Paper Issue Date2021-08-18 View4

Experimental Study on Plasma Breakdown Delay Time under Low Pressurized Argon Gas Using a W-band High-power Millimeter-wave Source

Kim, Dongsung , Yu, Dongho , Sawant, Ashwini , Choi, EunMi

Conference Paper Issue Date2016-08-24 View4

Experimental Verification on Remote Detectability of Concealed Radioactive Material Based on the Plasma Discharge Delay Time using High-Power Millimeter-Wave

Kim, Dongsung , Kim, Dongho , Sawant, Ashwini , Choe, Mun Seok , Lee, Ingeun , Choi, EunMi

Conference Paper Issue Date2016-10-31 View6

Extream Near-Field Mode Pattern Scan for a TE02 Mode Converter Using the Electro-Optic Probe System

Choi, EunMi , Lee, DJ , Lee, IG

Conference Paper Issue Date2014-05-22 View5

E‐Band Metasurface‐Based Orbital Angular Momentum Multiplexing and Demultiplexing File

Chung, Hyeongju , Kim, Daeik , Choi, EunMi , Lee, Jongwon

Article Issue Date2022-06 View13

Feasibility study on performance test of a quasi-optical mode converter using a linear, simple higher order mode generator File

Kim, Sung Gug , Kim, DongSung , Choe , Mun Seok , So, Joonho , Choi, Eun Mi

Conference Paper Issue Date2014-04-22 View10

Ferrite-damped higher-order mode study in the Brookhaven energy-recovery linac cavity File

Hahn, H. , Choi, EunMi , Hammons, L.

Article Issue Date2009-02 View4

First experimental observation of plasma breakdown for detection of radioactive material using a gyrotron in real-time File

Kim, Dongsung , Yu, Dongho , Sawan, Ashwini , Choe, Mun Seok , Choi, EunMi

Conference Paper Issue Date2017-04-24 View12

Frequency splitting of a multi-layered electric ring resonator File

Kim, S. G. , Kim, K. H. , Jung, H. S. , Cho, Hyungjoon , Choi, EunMi

Article Issue Date2011-07 View5

Friis transmission 이론을 이용한 실시간 고출력 RF 파워 측정방법

김성국 , 김정호 , 김동성 , 최은미

Conference Paper Issue Date2016-06-16 View10

Fundamental Analysis of OAM THz Communication Systems

Sawant, Ashwini , Lee, Ingeun , Choi, EunMi

Conference Paper Issue Date2020-08-20 View6

Fundamentals of Electromagnetic Wave Orbital Angular Momentum

Choi, EunMi

Conference Paper Issue Date2022-05-20 View4

Generation and Validation of Topological Charges of High-Power Gyrotron Orbital Angular Momentum Beams From Phase Retrieval Algorithm File

Sawant, Ashwini , Yu, Dongho , Kim, Dongsung , Choe, Mun Seok , Choi, EunMi

Article Issue Date2017-03 View6

Generation of a Laguerre-Gaussian beam using a spiral phase plate at W-band

Yoo, Dongho , Sawant, Ashwini , Choi, EunMi

Conference Paper Issue Date2015-10-21 View11

Generation of an orbital angular momentum (OAM) mode using a high power THz gyrotron

유동호 , 김동성 , Ashwini Sawant , Choi, EunMi

Conference Paper Issue Date2015-12-02 View7

Generation of E-band metasurface-based vortex beam with reduced divergence angle File File

Chung, Hyeongju , Kim, Daeik , Sawant, Ashwini , Lee, Ingeun , Choi, Eunmi , Lee, Jongwon

Article Issue Date2020-05 View17

Gereration of Higher Order Mode for W-band Gyrotron Oscillator

Choi, Eun Mi

Conference Paper Issue Date2012 View9

Graphene Nonlinear Metasurface to extremely Enhance the High-harmonic Generations at Terahertz Region

Kim, Daeik , Choi, Hong Eun , Han, Taegyu , Choi, EunMi , Lee, Jongwon

Conference Paper Issue Date2022-09-19 View8

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