Oversized W-band 2D periodic lattice oscillator

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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.
Number of pages2
ISBN (Electronic)978-1-5386-7534-2
Publication statusPublished - 27 Jun 2019
Event20th International Vacuum Electronics Conference (IVEC 2019) - Paradise Hotel, Busan, Korea, Republic of
Duration: 28 Apr 20191 May 2019


Conference20th International Vacuum Electronics Conference (IVEC 2019)
Abbreviated titleIVEC 2019
Country/TerritoryKorea, Republic of
Internet address


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


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