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Vectorial waveguide reflectometer for dielectric characterisation of materials under power microwaves
dc.contributor.author | Mallorquí Franquet, Jordi Joan |
dc.contributor.author | Aguasca Solé, Alberto |
dc.contributor.author | Ribó Vedrilla, Serni |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions |
dc.date.accessioned | 2017-02-22T18:16:57Z |
dc.date.available | 2017-02-22T18:16:57Z |
dc.date.issued | 1999 |
dc.identifier.citation | Mallorqui, J.J., Aguasca, A., Ribó, S. Vectorial waveguide reflectometer for dielectric characterisation of materials under power microwaves. A: IEEE Antennas and Propagation Society International Symposium '99. "APS 1999: Antennas and Propagation Society International Symposium: July 11-16, 1999". Orlando: Institute of Electrical and Electronics Engineers (IEEE), 1999, p. 1950-1953. |
dc.identifier.isbn | 14033-7955 |
dc.identifier.uri | http://hdl.handle.net/2117/101403 |
dc.description.abstract | The temperature rise in a material modifies its physical properties, particularly its dielectric permittivity. In many applications involving relatively high levels of power the electrical behavior of the different materials will change as they are heated by the radiation. For instance, the numerical codes that simulates the behavior of microwave heating processes in order to improve the design of the feeding antennas must take into account the load variations with temperature. The measurement of the changing dielectric characteristics of materials is of great interest for the industry. Previous works used completely filled waveguides near a shorting plate. The method supplied excellent results at low power levels, while the sample was not heated. When the power is risen, the field distribution of the TE/sub 10/ mode causes a non-uniform heating of the sample and the measured permittivity corresponds to an average value. In order to reduce this problem a method using a partially filled waveguide is presented. The reduced sample dimensions and its positioning into the waveguide assures a near homogeneous power distribution implying a uniform heating. |
dc.format.extent | 4 p. |
dc.language.iso | eng |
dc.publisher | Institute of Electrical and Electronics Engineers (IEEE) |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Enginyeria de la telecomunicació |
dc.subject.lcsh | Telecommunication |
dc.subject.other | Permittivity measurement |
dc.subject.other | Reflectometers |
dc.subject.other | Dielectric-loaded waveguides |
dc.subject.other | Microwave reflectometry |
dc.subject.other | Waveguide theory |
dc.subject.other | Dielectric properties |
dc.title | Vectorial waveguide reflectometer for dielectric characterisation of materials under power microwaves |
dc.type | Conference report |
dc.subject.lemac | Telecomunicació |
dc.contributor.group | Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció |
dc.identifier.doi | 10.1109/APS.1999.788340 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | http://ieeexplore.ieee.org/document/788340/ |
dc.rights.access | Open Access |
local.identifier.drac | 2357371 |
dc.description.version | Postprint (published version) |
local.citation.author | Mallorqui, J.J.; Aguasca, A.; Ribó, S. |
local.citation.contributor | IEEE Antennas and Propagation Society International Symposium '99 |
local.citation.pubplace | Orlando |
local.citation.publicationName | APS 1999: Antennas and Propagation Society International Symposium: July 11-16, 1999 |
local.citation.startingPage | 1950 |
local.citation.endingPage | 1953 |