18 research outputs found
Orbital Angular Momentum (OAM) of Rotating Modes Driven by Electrons in Electron Cyclotron Masers
Get PDFThe well-defined orbital angular momentum (OAM) of rotating cavity modes operating near the cutoff frequency excited by gyrating electrons in a high-power electron cyclotron maser (ECM)-a gyrotron-has been derived by photonic and electromagnetic wave approaches. A mode generator was built with a high-precision 3D printing technique to mimic the rotating gyrotron modes for precise low-power measurements and shows clear natural production of higher-order OAM modes. Cold-test measurements of higher-order OAM mode generation promise the realization towards wireless long-range communications using high-power ECMs
Microwave excitation and amplification using cyclotron interaction with an axial electron velocity beam
No full textLinear fluid analysis of the electron cyclotron maser with axial initial electron velocity
No full textCoaxial gyrotron cavities with resistive corrugated insert for powerful second-harmonic operation
No full textDesign considerations for powerful continuous-wave second-cyclotron-harmonic coaxial-cavity gyrotrons
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