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Title: High power microwave source with a three dimensional printed metamaterial slow-wave structure

Abstract

For over the last decade, the concept of metamaterials has led to new approaches for considering the interaction of radiation with complex structures. However, practical manifestations of such a device operating at high power densities have proven difficult to achieve due to the resonant nature of metamaterials and the resultant high electric fields, which place severe constraints on manufacturing the slow wave structures. In this paper, we describe the first experimental manifestation of a high power microwave device utilizing a metallic slow wave structure (metamaterial-like) fabricated using additive manufacturing. The feasibility of utilizing additive manufacturing as a technique for building these relatively complicated structures has thus been demonstrated. The MW class microwave source operates in the C-band and shows frequency tunablility with electron beam voltage. The basic electromagnetic characteristics of this device, the construction using additive manufacturing, and the basic performance as a microwave oscillator are considered. Due to the tunable nature of the device, it shows promise not only as an oscillator but also as a microwave amplifier. Therefore, the dispersive characteristics and a discussion of the anticipated gain is included as it relates to an amplifier configuration.

Authors:
;  [1]
  1. Air Force Research Laboratory, Directed Energy Directorate, Albuquerque, New Mexico 871117 (United States)
Publication Date:
OSTI Identifier:
22597939
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 87; Journal Issue: 5; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ADDITIVES; ELECTRIC FIELDS; ELECTRIC POTENTIAL; ELECTRON BEAMS; ELECTRONS; LIMITING VALUES; MANUFACTURING; METAMATERIALS; MICROWAVE AMPLIFIERS; MICROWAVE RADIATION; OSCILLATORS; POWER DENSITY; THREE-DIMENSIONAL CALCULATIONS

Citation Formats

French, David M., and Shiffler, Don. High power microwave source with a three dimensional printed metamaterial slow-wave structure. United States: N. p., 2016. Web. doi:10.1063/1.4950904.
French, David M., & Shiffler, Don. High power microwave source with a three dimensional printed metamaterial slow-wave structure. United States. doi:10.1063/1.4950904.
French, David M., and Shiffler, Don. Sun . "High power microwave source with a three dimensional printed metamaterial slow-wave structure". United States. doi:10.1063/1.4950904.
@article{osti_22597939,
title = {High power microwave source with a three dimensional printed metamaterial slow-wave structure},
author = {French, David M. and Shiffler, Don},
abstractNote = {For over the last decade, the concept of metamaterials has led to new approaches for considering the interaction of radiation with complex structures. However, practical manifestations of such a device operating at high power densities have proven difficult to achieve due to the resonant nature of metamaterials and the resultant high electric fields, which place severe constraints on manufacturing the slow wave structures. In this paper, we describe the first experimental manifestation of a high power microwave device utilizing a metallic slow wave structure (metamaterial-like) fabricated using additive manufacturing. The feasibility of utilizing additive manufacturing as a technique for building these relatively complicated structures has thus been demonstrated. The MW class microwave source operates in the C-band and shows frequency tunablility with electron beam voltage. The basic electromagnetic characteristics of this device, the construction using additive manufacturing, and the basic performance as a microwave oscillator are considered. Due to the tunable nature of the device, it shows promise not only as an oscillator but also as a microwave amplifier. Therefore, the dispersive characteristics and a discussion of the anticipated gain is included as it relates to an amplifier configuration.},
doi = {10.1063/1.4950904},
journal = {Review of Scientific Instruments},
number = 5,
volume = 87,
place = {United States},
year = {Sun May 15 00:00:00 EDT 2016},
month = {Sun May 15 00:00:00 EDT 2016}
}