NDLI: Connected Pair of Planar Helices With Straight-Edge Connections for Application in TWTs

Content Provider	IEEE Xplore Digital Library
Author	Chen Zhao Aditya, S. Ciersiang Chua
Copyright Year	1963
Abstract	A novel planar slow wave structure (SWS) consisting of a connected pair of planar helices with straight-edge connections (PH-SEC) has been proposed in this paper. It is shown with the help of dispersion and coupling impedance characteristics that this structure offers a larger electron-beam tunnel and lower risk of backward-wave oscillation compared with a single PH-SEC. Fabrication using printed-circuit techniques is reported and measured S-parameters over 1-7 GHz are presented to demonstrate the ease of feed-design and wideband characteristics for the new SWS. Using particle-in-cell simulations, hot-test parameters such as the output power, gain, and efficiency are also obtained and reported. It is shown that the connected pair of PH-SECs has a higher gain growth rate than that for the single PH-SEC. The proposed SWS is also compared at frequencies around 60 GHz with a recently reported structure which is derived from meander-line SWS; the comparison shows that the connected pair of PH-SECs offers a significantly higher coupling impedance. With a good potential for fabrication using microfabrication techniques, the connected pair of PH-SECs can be an attractive candidate for application in mm-wave traveling wave tubes.
Sponsorship	IEEE Electron Devices Society
Starting Page	1692
Ending Page	1698
Page Count	7
File Size	1491256
File Format	PDF
ISSN	00189383
Volume Number	61
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Impedance Couplings Dispersion Periodic structures Microstrip Gain Fabrication traveling wave tubes (TWTs). Gain growth rate planar helix slow wave structure (SWS) straight-edge connections traveling wave tubes (TWTs)
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

Analysis of Coupled Planar Helices with Straight-Edge Connections for Application in Millimeter-Wave TWTs

Vane-Loaded Planar Helix Slow-Wave Structure for Application in Broadband Traveling-Wave Tubes

Analysis of dielectric rods with arbitrary shape for low-dispersion slow-wave structures in helix TWTs

Planar Helix With Straight-Edge Connections in the Presence of Multilayer Dielectric Substrates

Simple Formulas for Stopband Attenuation Characteristics of Asymmetric Helical Slow-Wave Structures of Traveling-Wave Tubes

Bi-Helix SWS for High-Power TWTs

Inverted Slot-Mode Slow-Wave Structures for Traveling-Wave Tubes

A Microfabricated Planar Helix Slow-Wave Structure to Avoid Dielectric Charging in TWTs

Folded Waveguide Slow Wave Structure With Modified Circular Bends

Connected Pair of Planar Helices With Straight-Edge Connections for Application in TWTs

Similar Documents

Analysis of Coupled Planar Helices with Straight-Edge Connections for Application in Millimeter-Wave TWTs

Vane-Loaded Planar Helix Slow-Wave Structure for Application in Broadband Traveling-Wave Tubes

Analysis of dielectric rods with arbitrary shape for low-dispersion slow-wave structures in helix TWTs

Planar Helix With Straight-Edge Connections in the Presence of Multilayer Dielectric Substrates

Simple Formulas for Stopband Attenuation Characteristics of Asymmetric Helical Slow-Wave Structures of Traveling-Wave Tubes

Bi-Helix SWS for High-Power TWTs

Inverted Slot-Mode Slow-Wave Structures for Traveling-Wave Tubes

A Microfabricated Planar Helix Slow-Wave Structure to Avoid Dielectric Charging in TWTs

Folded Waveguide Slow Wave Structure With Modified Circular Bends

Connected Pair of Planar Helices With Straight-Edge Connections for Application in TWTs