NDLI: Optimization of millimeter wave microfabricated folded waveguide traveling-wave tubes

Content Provider	IEEE Xplore Digital Library
Author	Ruilin Zheng Xuyuan Chen
Copyright Year	2009
Description	Author affiliation: Institute for Microsystem Technologies, Vestfold University College Horten 3184, Vestfold, Norway (Ruilin Zheng; Xuyuan Chen)
Abstract	With broad bandwidth and relatively high power, microfabricated folded waveguide is an advanced slow-wave structure for millimeter and sub-millimeter wave traveling-wave tubes (TWTs). In this paper, two different ways were used to improve the output power and circuit gain of folded waveguide slow-wave structure. Pierce small signal analysis showed that the sidewall surface roughness will greatly undermine the circuit gain. And the surface roughness reduction measure was effectively proven by experiments. Atomic force microscope (AFM) analysis indicated that the rms surface roughness of our microfabricated structure is below 8nm. In loss-free particle-in-cell (PIC) simulation, the linearity and efficiency were greatly improved by phase velocity taper of electromagnetic wave on the rear half of the circuit. The saturated output power and efficiency were respectively improved from 49W to 73.4W, and 5.7% to 8.7%, for a 35.8mm-long (64periods) loss-free and concentrative-attenuated circuit.
Starting Page	1195
Ending Page	1198
File Size	332283
Page Count	4
File Format	PDF
ISBN	9781424447480
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-29
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	EUMA
Subject Keyword	Electromagnetic waveguides Rough surfaces Surface roughness Power generation Atomic force microscopy Millimeter wave circuits Bandwidth Signal analysis Electromagnetic measurements Atomic measurements traveling-wave tubes Folded waveguide microfabrication millimeter wave optimization
Content Type	Text
Resource Type	Article

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

Parametric design of microfabricated folded waveguide for millimeter wave traveling-wave tube

Design and 3-D simulation of microfabricated folded waveguide for a 220GHz broadband traveling-wave tube application

Generation of Terahertz Regime Radiation by Microfabricated Folded Waveguide Traveling Wave Tubes

Folded-type waveguide and its application in high power millimeter wave and THz sources

Simulation of microfabricated folded waveguide traveling-wave tube as broadband terahertz amplifier

A Rectangular Groove-Loaded Folded Waveguide for Millimeter-Wave Traveling-Wave Tubes

Analysis of D-band fundamental mode multi-beam folded waveguide TWT

20.3: High power Ka-band Folded Waveguide Traveling-Wave Tube

1 KW Ka-band folded waveguide Traveling-Wave Tube

Optimization of millimeter wave microfabricated folded waveguide traveling-wave tubes

Similar Documents

Parametric design of microfabricated folded waveguide for millimeter wave traveling-wave tube

Design and 3-D simulation of microfabricated folded waveguide for a 220GHz broadband traveling-wave tube application

Generation of Terahertz Regime Radiation by Microfabricated Folded Waveguide Traveling Wave Tubes

Folded-type waveguide and its application in high power millimeter wave and THz sources

Simulation of microfabricated folded waveguide traveling-wave tube as broadband terahertz amplifier

A Rectangular Groove-Loaded Folded Waveguide for Millimeter-Wave Traveling-Wave Tubes

Analysis of D-band fundamental mode multi-beam folded waveguide TWT

20.3: High power Ka-band Folded Waveguide Traveling-Wave Tube

1 KW Ka-band folded waveguide Traveling-Wave Tube

Optimization of millimeter wave microfabricated folded waveguide traveling-wave tubes