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Title: Sub-wavelength waveguide loaded by a complementary electric metamaterial for vacuum electron devices

Abstract

This work reviews the electromagnetic properties of a waveguide loaded by complementary electric split ring resonators (CeSRRs) and the application of the waveguide in vacuum electronics. The S-parameters of the CeSRRs in free space are calculated using the HFSS code and are used to retrieve the effective permittivity and permeability in an effective medium theory. The dispersion relation of a waveguide loaded with the CeSRRs is calculated by two methods: by direct calculation with HFSS and by calculation with the effective medium theory; the results are in good agreement. An improved agreement is obtained using a fitting procedure for the permittivity tensor in the effective medium theory. The gain of a backward wave mode of the CeSRR-loaded waveguide interacting with an electron beam is calculated by two methods: by using the HFSS model and traveling wave tube theory; and by using a dispersion relation derived in the effective medium model. Results of the two methods are in very good agreement. The introduced all-metal structure may be useful in miniaturized vacuum electron devices.

Authors:
 [1];  [2];  [2];  [2]
  1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Univ. of Electronic Science and Technology of China, Chengdu (China)
  2. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Publication Date:
Research Org.:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP); Natural Science Foundation of China
OSTI Identifier:
1557637
Grant/Contract Number:  
SC0010075
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 21; Journal Issue: 10; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats

Duan, Zhaoyun, Hummelt, Jason S., Shapiro, Michael A., and Temkin, Richard J. Sub-wavelength waveguide loaded by a complementary electric metamaterial for vacuum electron devices. United States: N. p., 2014. Web. doi:10.1063/1.4897392.
Duan, Zhaoyun, Hummelt, Jason S., Shapiro, Michael A., & Temkin, Richard J. Sub-wavelength waveguide loaded by a complementary electric metamaterial for vacuum electron devices. United States. https://doi.org/10.1063/1.4897392
Duan, Zhaoyun, Hummelt, Jason S., Shapiro, Michael A., and Temkin, Richard J. Thu . "Sub-wavelength waveguide loaded by a complementary electric metamaterial for vacuum electron devices". United States. https://doi.org/10.1063/1.4897392. https://www.osti.gov/servlets/purl/1557637.
@article{osti_1557637,
title = {Sub-wavelength waveguide loaded by a complementary electric metamaterial for vacuum electron devices},
author = {Duan, Zhaoyun and Hummelt, Jason S. and Shapiro, Michael A. and Temkin, Richard J.},
abstractNote = {This work reviews the electromagnetic properties of a waveguide loaded by complementary electric split ring resonators (CeSRRs) and the application of the waveguide in vacuum electronics. The S-parameters of the CeSRRs in free space are calculated using the HFSS code and are used to retrieve the effective permittivity and permeability in an effective medium theory. The dispersion relation of a waveguide loaded with the CeSRRs is calculated by two methods: by direct calculation with HFSS and by calculation with the effective medium theory; the results are in good agreement. An improved agreement is obtained using a fitting procedure for the permittivity tensor in the effective medium theory. The gain of a backward wave mode of the CeSRR-loaded waveguide interacting with an electron beam is calculated by two methods: by using the HFSS model and traveling wave tube theory; and by using a dispersion relation derived in the effective medium model. Results of the two methods are in very good agreement. The introduced all-metal structure may be useful in miniaturized vacuum electron devices.},
doi = {10.1063/1.4897392},
url = {https://www.osti.gov/biblio/1557637}, journal = {Physics of Plasmas},
issn = {1070-664X},
number = 10,
volume = 21,
place = {United States},
year = {2014},
month = {10}
}

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Cited by: 23 works
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Works referenced in this record:

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