Banca de QUALIFICAÇÃO: JURGEN KLINSMANN AZEVEDO NOGUEIRA
Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.STUDENT : JURGEN KLINSMANN AZEVEDO NOGUEIRA
DATE: 23/12/2021
TIME: 09:00
LOCAL: Sala virtual
TITLE:
New Planar Sensor Geometries for Non-Destructive Characterization of Dielectric Materials in Microwaves
KEY WORDS:
Sensor; CSRR; dielectric characterization; complex permittivity; dielectric constant; losses tangent.
PAGES: 40
BIG AREA: Engenharias
AREA: Engenharia Elétrica
SUBÁREA: Telecomunicações
SPECIALTY: Teoria Eletromagnetica, Microondas, Propagação de Ondas, Antenas
SUMMARY:
Planar microwave sensors have demonstrated important functionalities in several applications, such as in the food, industrial and biomedical sectors. Microwave sensors have several advantages related to their low cost and ease of fabrication, in addition to the possibility of integration with other devices. This thesis proposal has as its main objective to develop new planar sensors to characterize, in a non-destructive way, the complex permittivity of solid and liquid dielectric materials. The sensor initially proposed is based on a planar microstrip filter with the insertion of a Complementary Split Ring Resonator (CSRR) in its patch. This element is used for determining the electrical properties of the materials under test (MUT). The sensitivity analysis is determined by varying the permittivity of the MUT. The sensor is analyzed using simulations in the Ansoft HFSS software. A prototype was fabricated and measurements were made on two different samples of dielectric materials that have their values widely known in the literature. The simulation and measurements results are in good agreement. The continuity of this work is discussed and a timetable for its conclusion is presented.
BANKING MEMBERS:
Interno - 6345784 - ADAILDO GOMES D ASSUNCAO
Interno - 349732 - LAERCIO MARTINS DE MENDONCA
Interno - 3921178 - VALDEMIR PRAXEDES DA SILVA NETO
Externa ao Programa - 1804383 - CRISTHIANNE DE FATIMA LINHARES DE VASCONCELOS