Selective Coaxial Launcher of an Oversized Input Cavity of a Gyroklystron

We study a selective coaxial launder of an oversized cavity operating at the eigenmode of two higher asymmetric, spatially developed coupled modes in the context of the radiation input into a millimeter-wavelength gyroklystron. The external coaxial cavity is coupled with the internal oversized cavit...

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Bibliographic Details
Published inRadiophysics and quantum electronics Vol. 67; no. 8; pp. 581 - 592
Main Author Danilov, Yu. Yu
Format Journal Article
LanguageEnglish
Published New York Springer US 01.01.2025
Springer Nature B.V
Subjects
Astronomy
Astrophysics and Astroparticles
Coupled modes
Hadrons
Heavy Ions
Lasers
Launchers
Mathematical and Computational Physics
Nuclear Physics
Observations and Techniques
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Quantum Optics
Rectangular waveguides
Theoretical
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Summary:We study a selective coaxial launder of an oversized cavity operating at the eigenmode of two higher asymmetric, spatially developed coupled modes in the context of the radiation input into a millimeter-wavelength gyroklystron. The external coaxial cavity is coupled with the internal oversized cavity and microwave sources via azimuthally periodic systems of rectangular holes in both side walls. The relation between the parameters of the coaxial launcher, which ensures the maximum transformation of the feeding-waveguide mode into the eigenmode of the internal cavity, has been found. The fundamental mode TE 10 of the rectangular waveguide is transformed into the eigenoscillation of the coupled TE 1221 and TE 641 modes, which rotates azimuthally, with an efficiency of 0.6 in the absence of ohmic losses.
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ISSN:0033-8443
1573-9120
DOI:10.1007/s11141-025-10399-y