NDLI: Ultrawideband Coalesced-Mode Operation for a Sheet-Beam Traveling-Wave Tube

Content Provider	IEEE Xplore Digital Library
Author	Jianxun Wang Guoxiang Shu Guo Liu Yang, L.Y. Yong Luo
Copyright Year	1963
Abstract	Wider bandwidth property of traveling-wave tubes (TWTs) is continuously pursued to satisfy the increased data rates and multiple channels in modern communications. In this paper, the coalesced-mode operation instead of the general single-mode operation for the double staggered grating waveguide (DSGW) slow-wave structure (SWS) is proposed to achieve an ultrawideband property of the TWTs driven by sheet electron beam. Analytical results of the high-frequency properties for the SWS, including the dispersion characteristics, interaction impedance, and transmission property, demonstrate that the coalesced-mode operation for the DSGW is possible. A novel loading approach of the attenuator with good performance, and meanwhile, a compact configuration is proposed to suppress the potential oscillations, thus leading to a steady beam-wave interaction for the coalesced-mode operation. To verify the concept of coalesced-mode operation, particle-in-cell simulation is performed. Simulation results demonstrate that the optimized RF circuit indeed can steadily operate in coalesced mode and produce over 5-kW saturated output power (~10% efficiency) in a very broad frequency ranging from 37 to 52 GHz, corresponding to a relative bandwidth of 33.7%.
Sponsorship	IEEE Electron Devices Society
Starting Page	504
Ending Page	511
Page Count	8
File Size	1434417
File Format	PDF
ISSN	00189383
Volume Number	63
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2016-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bandwidth Impedance Dispersion Ultra wideband technology Radio frequency Oscillators Integrated circuit modeling ultrawideband. Coalesced-mode operation double staggered grating waveguide (DSGW) sheet-beam traveling-wave tube (SB-TWT) ultrawideband
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Modeling Investigation of an Ultrawideband Terahertz Sheet Beam Traveling-Wave Tube Amplifier Circuit

W-Band 1-kW Staggered Double-Vane Traveling-Wave Tube

Double Corrugated Waveguide for G-Band Traveling Wave Tubes

Study on Wideband Sheet Beam Traveling Wave Tube Based on Staggered Double Vane Slow Wave Structure

Design and Microwave Measurement of a Broadband Compact Power Coupler for Sheet Beam Traveling Wave Tubes

Planar Slow-Wave Structure With Parasitic Mode Control

$W$ -Band Multiple Beam Staggered Double-Vane Traveling Wave Tube With Broad Band and High Output Power

System Design Analysis of a 0.22-THz Sheet-Beam Traveling-Wave Tube Amplifier

Folded Waveguide Slow Wave Structure With Modified Circular Bends

Ultrawideband Coalesced-Mode Operation for a Sheet-Beam Traveling-Wave Tube

Similar Documents

Modeling Investigation of an Ultrawideband Terahertz Sheet Beam Traveling-Wave Tube Amplifier Circuit

W-Band 1-kW Staggered Double-Vane Traveling-Wave Tube

Double Corrugated Waveguide for G-Band Traveling Wave Tubes

Study on Wideband Sheet Beam Traveling Wave Tube Based on Staggered Double Vane Slow Wave Structure

Design and Microwave Measurement of a Broadband Compact Power Coupler for Sheet Beam Traveling Wave Tubes

Planar Slow-Wave Structure With Parasitic Mode Control

$W$ -Band Multiple Beam Staggered Double-Vane Traveling Wave Tube With Broad Band and High Output Power

System Design Analysis of a 0.22-THz Sheet-Beam Traveling-Wave Tube Amplifier

Folded Waveguide Slow Wave Structure With Modified Circular Bends

Ultrawideband Coalesced-Mode Operation for a Sheet-Beam Traveling-Wave Tube