Milimeter Wave Vacuum Electronic Devices Using Azimuthally Travelling Waves

ORAL

Abstract

With recent improvements in communications and imaging technology, the need for ultra high bandwidth, high frequency devices has grown significantly in the past decade. Unfortunately, the scaling laws of current vacuum electronic technologies prohibits extension of these devices to the mm-wave regime due to the complex manufacturing processes required for fabrication and the low efficiency and achievable output power at these frequencies. We propose a novel series of devices operating on a completely different beam-wave interaction mechanism than current devices. Through an interaction between an azimuthally bunched beam and spherical electromagnetic modes, traditional scaling laws and their associated issues can be circumvented. Based on preliminary analytical calculations, these devices could operate at frequencies from 80GHz to 250 GHz with tens of kiloWatts of output power while the expected efficiency of these devices would scale from 60% at 80 GHz to 30% at 230 GHz. Various possible device configurations are presented, including the basic theory and preliminary simulation results.

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Authors

  • Alysson Vrielink

    Caifornia State University, Long Beach, University of California, Merced, Stanford University

  • Chi-Yu Hu

    University of California - Berkeley, National Institute for Materials Science, Caifornia State University, Long Beach, University of Michigan, Stockholm University, California State University, Long Beach, Utrecht University, Carl von Ossietzky University of Oldenburg, Germany, Hartnell Community College, Department of Physics, Stockholm University, GRAPPA, University of Amsterdam, Paul Scherrer Institute, Switzerland, California State University, Fresno, California State University Long Beach, Cal State Univ- Long Beach, University of Nevada, Reno, University of Rogensberg, Germany, Tribhuvan University, Nepal, University of Victoria and Perimeter Institute for Theoretical Physics, Institute of Physics, Jagiellonian University, Helmholtz Institute Mainz, Johannes Gutenberg University, Physics Department of the University of Nevada, Reno, Universita del Sannio, Cal Tech, California State University, Los Angeles, Univ of California - San Diego, UC Berkeley, Lawrence Livermore National Laboratory, Department of Physics & Astronomy, University of California, Irvine 92617, Department of Chemistry and of Physics & Astronomy, University of California, Irvine 92617, SLAC National Laboratory, Humboldt State University, Physics Department, University of Nevada, Reno, Univ of California - Merced