Banca de DEFESA: NILSON HENRIQUE DE OLIVEIRA CUNHA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : NILSON HENRIQUE DE OLIVEIRA CUNHA
DATE: 26/08/2020
TIME: 09:00
LOCAL: Remoto pelo Google Meet
TITLE:

Metamaterial unit cell analysis using EBG substrates for integrated circuit applications

KEY WORDS:

Planar structures, EBGs and MTMs.

PAGES: 60
BIG AREA: Engenharias
AREA: Engenharia Elétrica
SUBÁREA: Telecomunicações
SPECIALTY: Teoria Eletromagnetica, Microondas, Propagação de Ondas, Antenas
SUMMARY:

With the growth in communications and the intense study of how to transmit and receive electromagnetic signals more efficiently, printed circuits have gained prominence on the world scene. The flat profile, easy construction and easy integration with other nowadays systems are attractive of these circuits that are present in almost all current devices. However, it is known that these types of elements have several disadvantages such as relative low gain, generally narrow bandwidth and low efficiency. To solve these various problems, elements that work in sets are often added, such as filters and Substrate Integrated Waveguide (SIW), but it is not always possible to apply these elements due to the physical limitations of the desired system. An alternative to work around these limitations is the application of structures with prohibited bands of electromagnetic wave propagation called EBGs (Electromagnetic Band Gap), another alternative is the application of artificial structures called metamaterials (MTMs). However depending on the format, distribution and periodicity, quasi-periodicity or non-periodicity of these techniques it is possible to obtain different results, such as increase in gain, bandwidth, impedance matching, efficiency increase, among many other parameters reported in the literature. In this context, aiming to merge the techniques mentioned above, we intend to carry out a study, from the characterization of a simple MTM-EBG cell to its application in circuits such as antennas, filters and printed lines, so as to prove the usefulness and scientific importance of these techniques for applications in current systems.

BANKING MEMBERS:
Presidente - 1422265 - JOSE PATROCINIO DA SILVA
Interno - 2524053 - ANTONIO LUIZ PEREIRA DE SIQUEIRA CAMPOS
Externo à Instituição - FRANCISCO DAS CHAGAS BARBOSA DE SENA - UFERSA