NDLI: Microwave antenna array for high temperature materials processing

Content Provider	IEEE Xplore Digital Library
Author	Gerdes, T. Park, H. Rosin, A. Schmidt, A. Willert-Porada, M.A.
Copyright Year	2010
Description	Author affiliation: InVerTec eV., Bayreuth, Germany (Schmidt, A.) \|\| University of Bayreuth, Germany (Gerdes, T.; Rosin, A.; Willert-Porada, M.A.) \|\| Centre of New Materials, Bayreuth, Germany (Park, H.)
Abstract	Industrial scale high temperature microwave processing of materials, like e.g., dielectric heating for sintering or heat treatment of powder metals and ceramics has not been successful yet, mainly because of lack of suitable equipment. The paper presents results of antenna development aiming at 2.45 Ghz microwave transmission into hot processing chambers, with minimum heat loss because only minor cooling of windows or transmission lines is required. High power microwave coupling is enabled by an array of high temperature resistant rod antennas. The design is performed in two steps: first simulation (FDTD) and experimental validation is done for a single antenna, than the results are transferred into the design of a 6 antenna array. This antenna array is capable of transmitting up to 36 kW 2.45 GHz radiation into a $1m^{3}$ volume process chamber at temperatures up to 1500°C. The E-H-field distribution and the limitations of material selection for the antenna array are discussed.
Starting Page	1
Ending Page	1
File Size	104606
Page Count	1
File Format	PDF
ISBN	9781424460564
ISSN	0149645X
e-ISBN	9781424460588
e-ISBN	9781424460571
DOI	10.1109/MWSYM.2010.5516147
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-05-23
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Microwave antenna arrays Temperature Materials processing Microwave devices Electromagnetic heating Antenna arrays Heat treatment Ceramics industry Metals industry Dielectric materials
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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