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Microwave antenna array for high temperature material processing

Title data

Gerdes, Thorsten ; Park, Ho-Seon ; Rosin, Andreas ; Schmidt, Achim ; Willert-Porada, Monika:
Microwave antenna array for high temperature material processing.
In: 2010 IEEE MTT-S International Microwave Symposium digest. - Piscataway, NJ : IEEE , 2010 . - pp. 1424-1427
ISBN 978-1-4244-6056-4
DOI: https://doi.org/10.1109/MWSYM.2010.5515857

Abstract in another language

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 1 m3 volume process chamber at temperatures up to 1500°C. The homogeneity of E-H-field distribution in the chamber and the limitations of material selection for the antenna array are discussed.

Further data

Item Type: Article in a book
Refereed: Yes
Institutions of the University: Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Ehemalige Professoren > Chair Materials Processing - Univ.-Prof. Dr. Monika Willert-Porada
Research Institutions > Research Units > ZET - Zentrum für Energietechnik
Faculties
Faculties > Faculty of Engineering Science > Chair Materials Processing
Research Institutions
Research Institutions > Research Units
Faculties > Faculty of Engineering Science > Ehemalige Professoren
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 500 Natural sciences
600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 04 May 2015 14:41
Last Modified: 05 May 2015 14:08
URI: https://eref.uni-bayreuth.de/id/eprint/11506