Oversized W-band 2D periodic lattice oscillator

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Abstract

To mitigate the conventional scaling of slow-wave vacuum electronic oscillators, in which the maximum output power reduces as the frequency increases, an oversized cylindrical structure is driven by an annular electron beam. To enhance mode selectivity a two dimensional (2D) periodic lattice structure (PSL) is used. The 2D PSL consists of shallow periodic cosinusoidal perturbations in both the azimuthal and axial directions on the inner wall of a cylindrical waveguide. Analytical theory and numerical PIC simulations have been used to design the W-band oscillator that has been constructed. The ratio of the diameter of the cylindrical cross-section of the structure to the operating wavelength is ~5. The performance of this oscillator is being measured and compared with the predictions of the numerical simulations.
Original languageEnglish
Title of host publication2019 International Vacuum Electronics Conference (IVEC)
Place of PublicationPiscataway, N.J.
PublisherIEEE
Number of pages2
ISBN (Electronic)978-1-5386-7534-2
DOIs
Publication statusPublished - 27 Jun 2019
Event20th International Vacuum Electronics Conference (IVEC 2019) - Paradise Hotel, Busan, Korea, Republic of
Duration: 28 Apr 20191 May 2019
http://www.ivec2019.org/

Conference

Conference20th International Vacuum Electronics Conference (IVEC 2019)
Abbreviated titleIVEC 2019
CountryKorea, Republic of
CityBusan
Period28/04/191/05/19
Internet address

Keywords

  • 2D periodic lattice
  • W-band
  • oscillator
  • mm-waves

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