A NOVEL MODE-SELECTIVE GYROTRON WITH A PBG RESONATOR
|
|
|
- Colleen Franklin
- 6 years ago
- Views:
Transcription
1 A NOVEL MODE-SELECTIVE GYROTRON WITH A PBG RESONATOR J. R. Sirigiri, K. E. Kreischer, I. Mastovsky, M. A. Shapiro, and R. J. Temkin Presented y Jagadishwar R. Sirigiri Plasma Science and Fusion Center Massachusetts Institute of Technology
2 OUTLINE Mode-selective gyrotrons at mm wave frequencies MIT research on mode-selective resonators Design of a photonic and gap (PBG) resonator PBG gyrotron experiment Summary
3 MODE COMPETITION Overmoded resonators are necessary for high frequency gyrotrons ut they suffer from mode-competition leading to reduces efficiency and staility of the design mode. Start Oscillation Current High efficiency operating point for the design mode Design mode Competing modes Operating current Magnetic Field
4 PBG STRUCTURES Oversized structure Ease of farication Suitale for high frequency (> 100 GHz ) operation A 140 GHz, TE 041 -like mode PBG cavity for an overmoded gyrotron oscillator experiment. Reduced mode population Periodic oundary discriminates modes with different frequencies Inhomogeneous oundary reduces the numer of modes Simple coupling scheme Disassemled view of a 17 GHz TM 010 like PBG cavity for potential application in linear accelerators Graceful degradation
5 DESIGN PRINCIPLE Design a lattice with a and gap around the desired operating frequency Create a defect (remove rods) in the lattice so as to create a defect mode which will serve as the operating mode of the structure The operating mode eing in the andgap is confined in the transverse direction Competing modes which are offset in frequency will not e confined if they lie in the lattice passand
6 140 GHz PBG RESONATOR 23 mm Cross section of the PBG cavity with a TE 04 like operating mode at GHz 9 mm Cross-section of a conventional cylindrical cavity with a TE 04 operating mode at GHz
7 PBG STRUCTURES y k y M a y a x Γ k y X 2π 2π k x X J x 4π 3 Γ k x PBG structures representing (a) square lattice and () triangular lattice of perfectly conducting cylinders Reciprocal lattices and Brillouin zones for (a) square lattice and () triangular lattice (irreducile Brillouin zones for each type of lattice are shaded).
8 PBG STRUCTURES TM eigenmodes in a square lattice. TE eigenmodes in a square lattice. TM eigenmodes in a triangular lattice. TE eigenmodes in a triangular lattice.
9 PBG STRUCTURES ω/c () a/ TM gap variation with filling fraction. The dot represents the operating point of the 17 GHz TM 010 accelerator cavity show elow. ω/c a a/ TE gap variation with filling fraction. The dot represents the operating point of the 140 GHz TE 041 gyrotron cavity show elow.
10 GYROTRON TEST STAND 100 kv, 70 A, 3µs capale Modulator 6.5 Tesla Superconducting Magnet Magnetron Injection Gun 75 kv, 7 A Demountale setup for quick change of experiments
11 PBG GYROTRON SETUP 1.69 m 140 GHz PHOTONIC BAND GAP GYROTRON
12 PBG GYROTRON RESULTS Frequency = GHz Voltage = kv Current = 5.10 A 12 Power (kw) Magnetic Field (Tesla) Unprecedented range of single mode operation 25 kw peak power at GHz Efficiency limited y high diffraction Q
13 CONFOCAL GYROTRON HE 06 Power Efficiency 20 Output Power (kw) GHz Efficiency (%) RF power (kw) HE GHz Magnetic Field (T) HE GHz Cavity magnetic field (T) The confocal cavity used in the 140 GHz gyrotron oscillator experiments HFSS Model of a section of the cavity showing the HE 06 operating mode of the confocal cavity Reduced mode competition 83 kw peak power at 136 GHz
14 SUMMARY Gyrotron with a PBG resonator designed uilt and tested 25 kw power at 140 GHz Unprecedented range of single mode operation Spurious modes at lest 22 db elow the operating mode A PBG interaction structure can suppress ackward wave oscillations in a gyro-twt Possiility of transverse energy extraction from the PBG resonator to lower the diffraction Q
15 ACKNOWLEDGEMENTS This work was supported y the MURI Innovative Microwave Vacuum Electronics (MVE) Program sponsored y the Department of Defense The Office of Fusion Energy Sciences, Department of Energy. The authors wish to thank William Mulligan for his help in running the experiments and Evgenya Smirnova for her support with the theoretical analysis of PBG lattices.
NEW OPPORTUNITIES IN VACUUM ELECTRONICS USING PHOTONIC BAND GAP STRUCTURES
NEW OPPORTUNITIES IN VACUUM ELECTRONICS USING PHOTONIC BAND GAP STRUCTURES J. R. Sirigiri, C. Chen, M. A. Shapiro, E. I. Smirnova, and R. J. Temkin Plasma Science and Fusion Center Massachusetts Institute
Progress in High Gradient Accelerator Research at MIT
Progress in High Gradient Accelerator Research at MIT Presented by Richard Temkin MIT Physics and Plasma Science and Fusion Center May 23, 2007 MIT Accelerator Research Collaborators MIT Plasma Science
Second-Harmonic Fundamental Mode Slotted Peniotron
Second-Harmonic Fundamental Mode Slotted Peniotron L.J. Dressman*, D.B. McDermott, and N.C. Luhmann, Jr. University of California, Davis *Also NAVSEA, Crane D.A. Gallagher Northrop Grumman Corp. T.A. Spencer
A 94 GHz Overmoded Traveling Wave Tube (TWT) Amplifier
1 A 94 GHz Overmoded Traveling Wave Tube (TWT) Amplifier Elizabeth J. Kowalski MIT Plasma Science and Fusion Center MURI Teleseminar December 5, 2014 2 Outline Introduction TWT Design and Cold Tests TWT
High Frequency Gyrotrons and Their Applications
High Frequency Gyrotrons and Their Applications Richard Temkin MIT Dept. of Physics and MIT Plasma Science and Fusion Center Plasma Physics Colloquium Applied Physics and Applied Math Dept. Columbia University
Megawatt Power Level 120 GHz Gyrotrons for ITER Start-Up
Institute of Physics Publishing Journal of Physics: Conference Series 25 (2005) 7 doi:0.088/742-6596/25//00 Third IAEA Technical Meeting on ECRH Physics and Technology in ITER Megawatt Power Level 20 GHz
J.Shafii, J.N. Talmadge, R.J. Vernon, HSX team HSX Plasma Laboratory, University of Wisconsin-Madison T. S. Bigelow, ORNL K.M.
J.Shafii, J.N. Talmadge, R.J. Vernon, HSX team HSX Plasma Laboratory, University of Wisconsin-Madison T. S. Bigelow, ORNL K.M. Likin, Fusion Division, CIEMAT Outline Abstract HSX ECH system Introduction
Second Harmonic Operation at 460 GHz and Broadband Continuous Frequency Tuning of a Gyrotron Oscillator
PSFC/JA--3 Second Harmonic Operation at 6 GHz and Broadband Continuous Frequency Tuning of a Gyrotron Oscillator M.K. Hornstein, V.S. Bajaj 1, R.G. Griffin 1, K.E. Kreischer 2, I. Mastovsky, M.A. Shapiro,
THE submillimeter wave regime is lacking in high average
524 IEEE TRANSACTIONS ON PLASMA SCIENCE, VOL. 34, NO. 3, JUNE 2006 Continuous-Wave Operation of a 460-GHz Second Harmonic Gyrotron Oscillator Melissa K. Hornstein, Member, IEEE, Vikram S. Bajaj, Robert
Long Pulse Operation of a High Power Microwave Source with a Metamaterial Loaded Waveguide
MURI Grad Student Teleseminar Long Pulse Operation of a High Power Microwave Source with a Metamaterial Loaded Waveguide Xueying Lu MIT 02/03/2016 Outline Review of Stage I experiment Jason Hummelt thesis
Design and experimental study of a high power 140 GHz, TE22.6 mode gyrotron for EAST
Invited Paper Design and experimental study of a high power 140 GHz, TE22.6 mode gyrotron for EAST Bentian Liu *, JinjunFeng, Zhiliang Li, Yang Zhang, Efeng Wang, and BoyangTian National Key Laboratory
Operation of a Continuously Frequency-Tunable Second-Harmonic CW 330-GHz Gyrotron for Dynamic Nuclear Polarization
PSFC/JA-10-65 Operation of a Continuously Frequency-Tunable Second-Harmonic CW 330-GHz Gyrotron for Dynamic Nuclear Polarization Torrezan, A.C., Shapiro, M.A., Sirigiri, J.R., Temkin, R.J., Griffin, R.G.*
Operation of a 140 GHz Gyro-amplifier using a Dielectric-loaded, Sever-less Confocal Waveguide
PSFC/JA-17-31 Operation of a 140 GHz Gyro-amplifier using a Dielectric-loaded, Sever-less Confocal Waveguide Alexander V. Soane, Michael A. Shapiro, Sudheer Jawla, Richard J. Temkin August 2017 Plasma
DOE/ET PFC/RR-87-10
PFC/RR-87-10 DOE/ET-51013-227 Concepts of Millimeter/Submillimeter Wave Cavities, Mode Converters and Waveguides Using High Temperature Superconducting Material D.R Chon; L. Bromberg; W. Halverson* B.
Projects in microwave theory 2017
Electrical and information technology Projects in microwave theory 2017 Write a short report on the project that includes a short abstract, an introduction, a theory section, a section on the results and
Experimental Results on a 1.5 MW, 110 GHz Gyrotron with a Smooth Mirror Mode Converter
PSFC/JA-10-63 Experimental Results on a 1.5 MW, 110 GHz Gyrotron with a Smooth Mirror Mode Converter Tax, D.S., Choi, E.M., Mastovsky, I., Neilson, J.M.*, Shapiro, M.A., Sirigiri, J.R., Temkin, R.J., Torrezan,
PARAMETRIC STUDY OF OHMIC WALL HEATING IN COAXIAL CAVITY
PARAMETRIC STUDY OF OHMIC WALL HEATING IN COAXIAL CAVITY Ashok Kumar 1 and Manjeet Singh 2 1 Singhania University, Rajasthan, India 2 Amity University, Noida, U.P, India ABSTRACT A detail parametric study
Tendencies in the Development of High-Power Gyrotrons
Tendencies in the Development of High-Power Gyrotrons G.G.Denisov Institute of Applied Physics Russian Academy of Sciences Ltd. Nizhny Novgorod, Russia JAERI/TOSHIBA / FZK/THALES CPI/GA Gyro-devices Extraordinary
Progress of Gyrotron Development for ITER
Progress of Gyrotron Development for ITER Presented by A. Kasugai (JAEA) The report includes materials of three papers: Demonstration of 1MW quasi-cw Operation of 170GHz Gyrotron and Progress of Technology
Module IV, Lecture 2 DNP experiments and hardware
Module IV, Lecture 2 DNP experiments and hardware tunnel diodes, Gunn diodes, magnetrons, traveling-wave tubes, klystrons, gyrotrons Dr Ilya Kuprov, University of Southampton, 2013 (for all lecture notes
Experimental Results of Series Gyrotrons for the Stellarator W7-X
Experimental Results of Series Gyrotrons for the Stellarator W7-X FT/P2-24 G. Gantenbein 1, H. Braune 2, G. Dammertz 1, V. Erckmann 2, S. Illy 1, S. Kern 1, W. Kasparek 3, H. P. Laqua 2, C. Lechte 3, F.
R.K.YADAV. 2. Explain with suitable sketch the operation of two-cavity Klystron amplifier. explain the concept of velocity and current modulations.
Question Bank DEPARTMENT OF ELECTRONICS AND COMMUNICATION SUBJECT- MICROWAVE ENGINEERING(EEC-603) Unit-III 1. What are the high frequency limitations of conventional tubes? Explain clearly. 2. Explain
FIR Center Report. Gyrotron FU CW VII for 300 MHz and 600 MHz DNP-NMR spectroscopy
FIR Center Report FIR FU-98 December 2009 Gyrotron FU CW VII for 300 MHz and 600 MHz DNP-NMR spectroscopy Toshitaka Idehara, Kosuke Kosuga, La Agusu, Isamu Ogawa, Hiroki Takahashi, Mark E Smith and Ray
PFC/JA Research at MIT on High Frequency Gyrotrons for ECRH Kreischer, K.E.; Grimm, T.L.; Guss, W.C.; Temkin, R.J. and Xu, K.Y.
PFC/JA-90-37 Research at MIT on High Frequency Gyrotrons for ECRH Kreischer, K.E.; Grimm, T.L.; Guss, W.C.; Temkin, R.J. and Xu, K.Y. Plasma Fusion Center Massachusetts Institute of Technology Cambridge,
Linearly Polarized Modes of a Corrugated Metallic Waveguide
Linearly Polarized Modes of a Corrugated Metallic Waveguide The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Citation As Published
2.2 MW Operation of the European Coaxial-Cavity Pre-Prototype Gyrotron for ITER
2.2 MW Operation of the European Coaxial-Cavity Pre-Prototype Gyrotron for ITER G. Gantenbein 1, T. Rzesnicki 1, B. Piosczyk 1, S. Kern 1, S. Illy 1, J. Jin 1, A. Samartsev 1, A. Schlaich 1,2 and M. Thumm
Virtual EM Prototyping: From Microwaves to Optics
Virtual EM Prototyping: From Microwaves to Optics Dr. Frank Demming, CST AG Dr. Avri Frenkel, Anafa Electromagnetic Solutions Virtual EM Prototyping Efficient Maxwell Equations solvers has been developed,
1500 JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 17, NO. 8, AUGUST 1999
1500 JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 17, NO. 8, AUGUST 1999 Analysis of Finite 2-D Photonic Crystals of Columns and Lightwave Devices Using the Scattering Matrix Method Jun Yonekura, Mitsutaka Ikeda,
Experimental Plan for Testing the UNM Metamaterial Slow Wave Structure for High Power Microwave Generation
Experimental Plan for Testing the UNM Metamaterial Slow Wave Structure for High Power Microwave Generation Kevin Shipman University of New Mexico Albuquerque, NM MURI Teleseminar August 5, 2016 1 Outline
Development of the 170GHz gyrotron and equatorial launcher for ITER
Development of the 17GHz gyrotron and equatorial launcher for ITER K.Sakamoto, A. Kasugai, K. Takahashi, R. Minami a), T. Kariya b), Y. Mitsunaka b), N.Kobayashi Plasma Heating Laboratory, Japan Atomic
Probing the Energy Structure of Positronium with a 203 GHz Fabry-Perot Cavity
Probing the Energy Structure of Positronium with a 203 GHz Fabry-Perot Cavity T Suehara 1, A Miyazaki 2, A Ishida 2, T Namba 1, S Asai 2, T Kobayashi 1, H Saito 3, M Yoshida 4, T Idehara 5, I Ogawa 5,
Development of a Multi-Purpose, Multi-Frequency Gyrotron for DEMO at KIT
KSTAR Conference 2015 February 25-27, 2015, Daejeon, Korea Development of a Multi-Purpose, Multi-Frequency Gyrotron for DEMO at KIT M. Thumm a,b, K.A. Avramidis a, J. Franck a, G. Gantenbein a, S. Illy
Multi-frequency notch filters and corrugated 200 to 400 GHz waveguide components manufactured by stacked ring technology
Invited Paper Multi-frequency notch filters and corrugated 2 to 4 GHz waveguide components manufactured by stacked ring technology M. Thumm 1*, D. Wagner 2, E. de Rijk 3, W. Bongers 4, W. Kasparek 5, F.
Development of Collective Thomson Scattering System Using the Gyrotrons of Sub-Tera Hz Region
1 FTP/P6-31 Development of Collective Thomson Scattering System Using the Gyrotrons of Sub-Tera Hz Region Y. Tatematsu 1), S. Kubo 2), M. Nishiura 2), K. Tanaka 2), N. Tamura 3), T. Shimozuma 2), T. Saito
Status of the ADMX-HF Dark Matter Axion Search
University of California E-mail: simanovskaia@berkeley.edu Axions are a leading dark matter candidate, and may be detected by their resonant conversion to a monochromatic RF signal in a tunable microwave
CT-7Ra Development of Gyrotron and JT-60U EC Heating System for Fusion Reactor
Development of Gyrotron and JT-6U EC Heating System for Fusion Reactor K. SAKAMOTO 1), A. KASUGAI 1), YO. IKEDA 1), K. HAYASHI 1), K. TAKAHASHI 1), K. KAJIWARA 1), S. MORIYAMA 1), M. SEKI 1), T. KARIYA
THERE is considerable interest in increasing the bandwidth
488 IEEE TRANSACTIONS ON PLASMA SCIENCE, VOL. 26, NO. 3, JUNE 1998 Circuit Design for a Wide-B Disk-Loaded Gyro-TWT Amplifier K. C. Leou, Member, IEEE, Tao Pi, D. B. McDermott, Senior Member, IEEE, N.
ELEC4604. RF Electronics. Experiment 2
ELEC4604 RF Electronics Experiment MICROWAVE MEASUREMENT TECHNIQUES 1. Introduction and Objectives In designing the RF front end of a microwave communication system it is important to appreciate that the
Estimation of the Loss in the ECH Transmission Lines for ITER
Estimation of the Loss in the ECH Transmission Lines for ITER S. T. Han, M. A. Shapiro, J. R. Sirigiri, D. Tax, R. J. Temkin and P. P. Woskov MIT Plasma Science and Fusion Center, MIT Building NW16-186,
Instrumentation for Dynamic Nuclear Polarization. Alexander Barnes Massachusetts Institute of Technology Francis Bitter Magnet Laboratory
Instrumentation for Dynamic Nuclear Polarization Alexander Barnes Massachusetts Institute of Technology Francis Bitter Magnet Laboratory 380 MHz / 250 GHz DNP Apparatus cryogenic sample eject 250 GHz gyrotron
On the RF system of the ILC
On the RF system of the ILC Sami G. Tantawi Chris Nantista Valery Dolgashev Jiquan Guo SLAC Outline This talk is a collection of thoughts about the rf system based on our experience with X-band system!
Gyroklystron Research at CCR
Gyroklystron Research at CCR RLI@calcreek.com Lawrence Ives, Michael Read, Jeff Neilson, Philipp Borchard and Max Mizuhara Calabazas Creek Research, Inc. 20937 Comer Drive, Saratoga, CA 95070-3753 W. Lawson
Dhanalakshmi College of Engineering Department of ECE EC6701 RF and Microwave Engineering Unit 4 Part A
Dhanalakshmi College of Engineering Department of ECE EC6701 RF and Microwave Engineering Unit 4 Part A 1. What is magnetron? [N/D-16] an electron tube for amplifying or generating microwaves, with the
2. Achievement of reliable long pulse operation of 1 MW 170 GHz gyrotron
Demonstration of 1 MW quasi-cw operation of 170 GHz Gyrotron and Progress of EC Technology for ITER A.Kasugai, K.Sakamoto, K.Takahashi, K.Kajiwara, Y.Oda, N.Kobayashi Fusion Research and Development Directorate,
The report includes materials of three papers:
The report includes materials of three papers: Performance of 170 GHz high-power gyrotron for CW operation A. Kasugai, Japan gyrotron team Development of Steady-State 2-MW 170-GHz Gyrotrons for ITER B.
ULISS DATA-SHEET. version c FEMTO Engineering, 15B Avenue des Montboucons, Besançon cedex
ULISS DATA-SHEET version 0.3 http://www.uliss-st.com/ c FEMTO Engineering, 15B Avenue des Montboucons, 25 030 Besançon cedex The information disclosed to you hereunder (the "materials") is provided solely
Study of the variation of refractive index for different organic liquids of an optical channel drop filter on a 2D photonic crystal ring resonator
Study of the variation of refractive index for different organic liquids of an optical channel drop filter on a 2D photonic crystal ring resonator Ghoumazi Mehdi #1, Abdessalam Hocini #2 1,2 Laboratoire
3. (a) Derive an expression for the Hull cut off condition for cylindrical magnetron oscillator. (b) Write short notes on 8 cavity magnetron [8+8]
![3. (a) Derive an expression for the Hull cut off condition for cylindrical magnetron oscillator. (b) Write short notes on 8 cavity magnetron [8+8]](/thumbs/73/68588725.jpg "3. (a) Derive an expression for the Hull cut off condition for cylindrical magnetron oscillator. (b) Write short notes on 8 cavity magnetron [8+8]")
Code No: RR320404 Set No. 1 1. (a) Compare Drift space bunching and Reflector bunching with the help of Applegate diagrams. (b) A reflex Klystron operates at the peak of n=1 or 3 / 4 mode. The dc power
INSTITUTE OF AERONAUTICAL ENGINEERING (Autonomous) Dundigal, Hyderabad
INSTITUTE OF AERONAUTICAL ENGINEERING (Autonomous) Dundigal, Hyderabad - 500 043 ELECTRONICS AND COMMUNICATION ENGINEERING TUTORIAL BANK Name : MICROWAVE ENGINEERING Code : A70442 Class : IV B. Tech I
Study of Elliptical Polarization Requirement of KSTAR 84-GHz ECH System
Journal of the Korean Physical Society, Vol. 49, December 2006, pp. S201 S205 Study of Elliptical Polarization Requirement of KSTAR 84-GHz ECH System Jinhyun Jeong, Youngsoon Bae, Moohyun Cho and Won Namkung
PFC/JA Submitted for publication in Physical Review Letters.
PFC/JA-93-21 Experimental study of a 28 GHz high-power long-pulse cyclotron autoresonance maser (CARM) oscillator S. Alberti(a), B.G. Danly, G. Gulotta, E. Giguet(b), T. Kimura, W.L. Menninger, J.L. Rullier(c),
Experimental Study on W-Band ( GHz) Oversized Surface Wave Oscillator Driven by Weakly Relativistic Electron Beams )
Experimental Study on W-Band (75-110 GHz) Oversized Surface Wave Oscillator Driven by Weakly Relativistic Electron Beams ) Min Thu SAN, Kazuo OGURA, Kiyoyuki YAMBE, Yuta ANNAKA, Shaoyan GONG, Jun KAWAMURA,
Demonstration of a 10 kw average power 94 GHz gyroklystron amplifier
PHYSICS OF PLASMAS VOLUME 6, NUMBER 12 DECEMBER 1999 LETTERS The purpose of this Letters section is to provide rapid dissemination of important new results in the fields regularly covered by Physics of
ECRH on the Levitated Dipole Experiment
ECRH on the Levitated Dipole Experiment S. Mahar, J. Kesner, A.C. Boxer, J.E. Ellsworth, I. Karim, A. Roach MIT PSFC A.K. Hansen, D.T. Garnier, M.E. Mauel, E.E.Ortiz Columbia University Presented at the
Effects of Two Dimensional Electromagnetic Bandgap (EBG) Structures on the Performance of Microstrip Patch Antenna Arrays
Effects of Two Dimensional Electromagnetic Bandgap (EBG) Structures on the Performance of Microstrip Patch Antenna Arrays Mr. F. Benikhlef 1 and Mr. N. Boukli-Hacen 2 1 Research Scholar, telecommunication,
DESIGN OF A 60 GHz, 100 kw CW GYROTRON FOR PLASMA DIAGNOSTICS: GDS-V.01 SIMULATIONS
Progress In Electromagnetics Research B, Vol. 22, 379 399, 2010 DESIGN OF A 60 GHz, 100 kw CW GYROTRON FOR PLASMA DIAGNOSTICS: GDS-V.01 SIMULATIONS R. Jain and M. V. Kartikeyan Department of Electronics
High acceleration gradient. Critical applications: Linear colliders e.g. ILC X-ray FELs e.g. DESY XFEL
High acceleration gradient Critical applications: Linear colliders e.g. ILC X-ray FELs e.g. DESY XFEL Critical points The physical limitation of a SC resonator is given by the requirement that the RF magnetic
COUPLER DESIGN CONSIDERATIONS FOR THE ILC CRAB CAVITY
COUPLER DESIGN CONSIDERATIONS FOR THE ILC CRAB CAVITY C. Beard 1), G. Burt 2), A. C. Dexter 2), P. Goudket 1), P. A. McIntosh 1), E. Wooldridge 1) 1) ASTeC, Daresbury laboratory, Warrington, Cheshire,
Passive Phased Arrays for Radar Antennas
White Paper December 2005 - Page 1 of 10 White Paper for Radar Antennas PREPARED BY: EMS TECHNOLOGIES, INC. SPACE AND TECHNOLOGY - ATLANTA 660 ENGINEERING DRIVE P.O. BOX 7700 NORCROSS, GA 30091-7700 2005
EC 1402 Microwave Engineering
SHRI ANGALAMMAN COLLEGE OF ENGINEERING & TECHNOLOGY (An ISO 9001:2008 Certified Institution) SIRUGANOOR,TRICHY-621105. DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING EC 1402 Microwave Engineering
Spurious-Mode Suppression in Optoelectronic Oscillators
Spurious-Mode Suppression in Optoelectronic Oscillators Olukayode Okusaga and Eric Adles and Weimin Zhou U.S. Army Research Laboratory Adelphi, Maryland 20783 1197 Email: olukayode.okusaga@us.army.mil
Operational progress of 170GHz 1MW ECH system in KSTAR
8 th IAEA TM on Steady State Operation of Magnetic Fusion Devices, May. 29, 2015, NARA, JAPAN Operational progress of 170GHz 1MW ECH system in KSTAR J. H. Jeong a, Y. S. Bae a, M. Joung a, M. H. Woo a,
High Power, Magnet-free, Waveguide Based Circulator Using Angular-Momentum Biasing of a Resonant Ring
SLAC-R-1080 High Power, Magnet-free, Waveguide Based Circulator Using Angular-Momentum Biasing of a Resonant Ring Jeffrey Neilson and Emilio Nanni August 18, 2017 Prepared for Calabazas Creek Research,
UNIT - V WAVEGUIDES. Part A (2 marks)
Part A (2 marks) UNIT - V WAVEGUIDES 1. What is the need for guide termination? (Nov / Dec 2011) To avoid reflection loss. The termination should provide a wave impedance equal to that of the transmission
A proposal for the measurement of the non-stationary Casimir effect
A proposal for the measurement of the non-stationary Casimir effect Giuseppe Ruoso INFN - Laboratori Nazionali di Legnaro - aim of the experiment - mechanical and effective motion - experimental set-up
A DC POST-MAGNETRON CONFIGURATION FOR NIOBIUM SPUTTERING INTO 1.5 GHz COPPER MONOCELLS.
A DC POST-MAGNETRON CONFIGURATION FOR NIOBIUM SPUTTERING INTO 1.5 GHz COPPER MONOCELLS. V. PALMIERI, R. PRECISO, V.L. RUZINOV A, S.Yu. STARK A ISTITUTO NAZIONALE DI FISICA NUCLEARE Laboratori Nazionali
Development Status of KSTAR LHCD System
Development Status of KSTAR LHCD System September 24, 2004 Y. S. Bae,, M. H. Cho, W. Namkung Plasma Sheath Lab. Department of Physics, Pohang University of Science and Technology LHCD system overview Objectives
QPR No SPONTANEOUS RADIOFREQUENCY EMISSION FROM HOT-ELECTRON PLASMAS XIII. Academic and Research Staff. Prof. A. Bers.
XIII. SPONTANEOUS RADIOFREQUENCY EMISSION FROM HOT-ELECTRON PLASMAS Academic and Research Staff Prof. A. Bers Graduate Students C. E. Speck A. EXPERIMENTAL STUDY OF ENHANCED CYCLOTRON RADIATION FROM AN
A Pin-Loaded Microstrip Patch Antenna with the Ability to Suppress Surface Wave Excitation
Progress In Electromagnetics Research C, Vol. 62, 131 137, 2016 A Pin-Loaded Microstrip Patch Antenna with the Ability to Suppress Surface Wave Excitation Ayed R. AlAjmi and Mohammad A. Saed * Abstract
Improved Performance of Magnetrons using the Transparent Cathode 1
High power microwaves Improved Performance of Magnetrons using the Transparent Cathode 1 H. Bosman, S. Prasad, M. Fuks, and E. Schamiloglu Department of Electrical & Computer Engineering MSC01 1100, 1
Conceptual Design of a Table-top Terahertz Free-electron Laser
Journal of the Korean Physical Society, Vol. 59, No. 5, November 2011, pp. 3251 3255 Conceptual Design of a Table-top Terahertz Free-electron Laser Y. U. Jeong, S. H. Park, K. Lee, J. Mun, K. H. Jang,
Projects in microwave theory 2009
Electrical and information technology Projects in microwave theory 2009 Write a short report on the project that includes a short abstract, an introduction, a theory section, a section on the results and
Real-time, T-Ray Imaging Using a Sub-Terahertz Gyrotron
Journal of the Korean Physical Society, Vol. 60, No. 11, June 2012, pp. 1857 1861 Real-time, T-Ray Imaging Using a Sub-Terahertz Gyrotron Seong-Tae Han Korea Electrotechnology Research Institute, Ansan
2 conventional transverse waves using knotted multyfoil antennas. This attenuation decreases with increasing number of foils of multifoils antenna
1 Experimental observation of giant amplification knotted electromagnetic waves in various media M.V. Smelov This article presents the results of experimental studies on excitation, propagation and reception
Development of a 20-MeV Dielectric-Loaded Accelerator Test Facility
SLAC-PUB-11299 Development of a 20-MeV Dielectric-Loaded Accelerator Test Facility S.H. Gold, et al. Contributed to 11th Advanced Accelerator Concepts Workshop (AAC 2004), 06/21/2004--6/26/2004, Stony
Summary: Gyrotron Development
Summary: Gyrotron Development State-of-the-Art of Industrial Megawatt-Class Longpulse Fusion Gyrotrons (f 140 GHz) with TEM 00 -Output Denisov et al., Felch et al., Sakamoto et al., Erckmann et al. Company
Beam BreakUp at Daresbury. Emma Wooldridge ASTeC
Beam BreakUp at Daresbury Emma Wooldridge ASTeC Outline The causes of Beam Breakup (BBU) Types of BBU Why investigate BBU? Possible solutions Causes of BBU There are four main causes. Interaction with
Cavities at higher and lower frequencies
Cavities at higher and lower frequencies C. Hagmann, J. Hoskins, I. Stern, A.A. Chisholm, P. Sikivie, N.S. Sullivan, and D.B. Tanner University of Florida Basic cavity is a right circular cylinder Or:
ELECTRON cyclotron heating (ECH) using high-power
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 54, NO. 11, NOVEMBER 2006 3899 Experimental Verification of Phase Retrieval of Quasi-Optical Millimeter-Wave Beams Hiroshi Idei, Takashi Shimozuma,
The impedance budget of the CERN Proton Synchrotron (PS)
The impedance budget of the CERN Proton Synchrotron (PS) Serena Persichelli CERN Hadron Synchrotron Collective effects University of Rome La Sapienza serena.persichelli@cern.ch Why do we study the beam
Behavior of the TTF2 RF Gun with long pulses and high repetition rates
Behavior of the TTF2 RF Gun with long pulses and high repetition rates J. Baehr 1, I. Bohnet 1, J.-P. Carneiro 2, K. Floettmann 2, J. H. Han 1, M. v. Hartrott 3, M. Krasilnikov 1, O. Krebs 2, D. Lipka
Broadside - Coupled Split Ring Resonator (BC-SRR) Metamaterial-Like Slow-Wave Structure. Sabahattin C. Yurt
Department of Electrical & Computer Engineering MURI Teleconference Broadside - Coupled Split Ring Resonator (BC-SRR) Metamaterial-Like Slow-Wave Structure Sabahattin C. Yurt cyurt@unm.edu Sarita Prasad
Origin of Sideband and Spurious Noises in Microwave Oven Magnetron
IEEE TRANSACTIONS ON ELECTRON DEVICES 1 Origin of Sideband and Spurious Noises in Microwave Oven Magnetron In-Keun Baek, Matlabjon Sattorov, Ranajoy Bhattacharya, Seontae Kim, Dongpyo Hong, Sun-Hong Min,
Design of a new 18 GHz ECRIS for RIKEN RIBF
Design of a new 18 GHz ECRIS for RIKEN RIBF Kazutaka Ozeki Yoshihide Higurashi Takahide Nakagawa Jun-ichi Ohnishi RIKEN Nishina Center for Accelerator-Based Science Contents RIKEN RIBF, RILAC RIKEN 18
IEEE TRANSACTIONS ON PLASMA SCIENCE, VOL. 35, NO. 3, JUNE Spectral Characteristics of a 140-GHz Long-Pulsed Gyrotron
IEEE TRANSACTIONS ON PLASMA SCIENCE, VOL. 35, NO. 3, JUNE 2007 559 Spectral Characteristics of a 140-GHz Long-Pulsed Gyrotron Seong-Tae Han, Robert G. Griffin, Kan-Nian Hu, Chan-Gyu Joo, Colin D. Joye,
Crossed-Field Amplifier (Amplitron)
Crossed-Field Amplifier (Amplitron) Figure 1: water-cooled Crossed-Field Amplifier L 4756A in its transport case Figure 2: Subset of the cycloidal electron paths into a Crossed-Field Amplifier Also other
St.MARTIN S ENGINEERING COLLEGE Dhulapally, Secunderabad
St.MARTIN S ENGINEERING COLLEGE Dhulapally, Secunderabad 500014. Department of Electronics and Communication Engineering SUB: MICROWAVE ENGINEERING SECTION: ECE IV A & B NAME OF THE FACULTY: S RAVI KUMAR,T.SUDHEER
Lattice Design for PRISM-FFAG. A. Sato Osaka University for the PRISM working group
Lattice Design for PRISM-FFAG A. Sato Osaka University for the PRISM working group contents PRISM overview PRISM-FFAG dynamics study & its method PRISM Phase Rotated Intense Slow Muon source Anticipated
The design of a radio frequency quadrupole LINAC for the RIB project at VECC Kolkata
PRAMANA cfl Indian Academy of Sciences Vol. 59, No. 6 journal of December 2002 physics pp. 957 962 The design of a radio frequency quadrupole LINAC for the RIB project at VECC Kolkata V BANERJEE 1;Λ, ALOK
Characterization of a 3-D Photonic Crystal Structure Using Port and S- Parameter Analysis
Characterization of a 3-D Photonic Crystal Structure Using Port and S- Parameter Analysis M. Dong* 1, M. Tomes 1, M. Eichenfield 2, M. Jarrahi 1, T. Carmon 1 1 University of Michigan, Ann Arbor, MI, USA
Profile Scan Studies on the Levitated Dipole Experiment
Profile Scan Studies on the Levitated Dipole Experiment Columbia University A.K. Hansen, D.T. Garnier, M.E. Mauel, E.E. Ortiz Columbia University J. Kesner, A.C. Boxer, J.E. Ellsworth, I. Karim, S. Mahar,
Electromagnetic Field Simulation for ICRF Antenna and Comparison with Experimental Results in LHD
Electromagnetic Field Simulation for ICRF Antenna and Comparison with Experimental Results in LHD Takashi MUTOH, Hiroshi KASAHARA, Tetsuo SEKI, Kenji SAITO, Ryuhei KUMAZAWA, Fujio SHIMPO and Goro NOMURA
Development of Backward Wave Oscillators for Terahertz Applications
Development of Backward Wave Oscillators for Terahertz Applications Lawrence Ives, Jeff Neilson, Malcom Caplan, Nikolai Chubun, Carol Kory, Mike Read, Calabazas Creek Research, Inc., 20937 Comer Drive
A High-Power Gyrotron and high-power mm wave technology for Fusion Reactor
A High-Power Gyrotron and high-power mm wave technology for Fusion Reactor Keishi Sakamoto, Ken Kajiwara, Atsushi Kasugai, Yasuhisa Oda, Koji Takahashi, Noriyuki Kobayashi, Takayuki Kobayashi, Akihiko
Development in Russia of Megawatt Power Gyrotrons for Fusion
1 ITR/1-4Ra Development in Russia of Megawatt Power Gyrotrons for Fusion A.G.Litvak 1, G.G.Denisov 1, V.E.Myasnikov 2, E.M.Tai 2,E.V. Sokolov, V.I.Ilin 3. 1 Institute of Applied Physics Russian Academy
Performance Measurements of SLAC's X-band. High-Power Pulse Compression System (SLED-II)
SLAC PUB 95-6775 June 995 Performance Measurements of SLAC's X-band High-Power Pulse Compression System (SLED-II) Sami G. Tantawi, Arnold E. Vlieks, and Rod J. Loewen Stanford Linear Accelerator Center
Normal-conducting high-gradient rf systems
Normal-conducting high-gradient rf systems Introduction Motivation for high gradient Order of 100 GeV/km Operational and state-of-the-art SwissFEL C-band linac: Just under 30 MV/m CLIC prototypes: Over
Polarization-controllable TE 21 mode converter
REVIEW OF SCIENTIFIC INSTRUMENTS 76, 074703 2005 Polarization-controllable TE 21 mode converter T. H. Chang, C. F. Yu, and C. T. Fan Department of Physics, National Tsing Hua University, Hsinchu, Taiwan
AN IN-LINE POWER MONITOR FOR HE11 LOW LOSS TRANSMISSION LINES
GA A24757 AN IN-LINE POWER MONITOR FOR HE11 LOW LOSS TRANSMISSION LINES by R.W. CALLIS, J. LOHR, I.A. GORELOV, K. KAJIWARA, D. PONCE, J.L. DOANE, J.F. TOOKER JUNE 2004 QTYUIOP DISCLAIMER This report was
FLASH at DESY. FLASH. Free-Electron Laser in Hamburg. The first soft X-ray FEL operating two undulator beamlines simultaneously
FLASH at DESY The first soft X-ray FEL operating two undulator beamlines simultaneously Katja Honkavaara, DESY for the FLASH team FEL Conference 2014, Basel 25-29 August, 2014 First Lasing FLASH2 > First