Transient Analysis of a Dual Polarization Log-periodic ... · Traditional: Graduation and...

Transient Analysis of a Dual Polarization

Log-periodic Antenna for Remote Sensing

Applications

Prof. Dr. Arismar Cerqueira Sodré Jr.

Igor Feliciano da Costa

Juliano F. Mologni

Luís Gustavo Silva

INATEL: National Institute of Telecommunications

INATEL: Lab. WOCA (Wireless and Optical Convergence

Access)

Undergraduate students:

Renan Alves do Santos

Sebastião Verçosa da Silva

Iracema Bonomini

Dionísio Fama

Alexandre Abdalla

Graduate students:

Igor Feliciano da Costa

Luís Gustavo da Silva

Suzanne Melo

Egídio Neto

Teaching Research Development

Traditional:

Graduation and under-graduation levels

Zll /4 = ZlinhaZ2linhas

''32

2

ba

DDD HE

P

2

''2,6

ba

DP

bababaD

A Pe

50,0''49,0

''2,6

44 2

22

2222

22

aa

b

bbb

aa

aeh

Lab. WOCA

RF Filters: Luis Gustavo and Prof. Dr. Arismar Cerqueira

Microstrip 3 Band Filter

Fractal Antennas with Sierpisnky structure:

Rodrigo Oliveira and Prof. Dr. Justino Ribeiro

0.00 1.25 2.50 3.70Freq [GHz]

-25.00

-20.00

-15.00

-10.00

-5.00

0.00

S1

1 [d

B]

Monopulse Radar: Igor Feliciano and Prof. Dr. Arismar

Research on Remote Sensing: Igor Feliciano, Prof.

Dr. Arismar Cerqueira and Juliano Mologni

“Remote sensing is a technique used for acquisition

and data processing of terrestrial environment by

analyzing the interactions between electromagnetic

radiation and substances in the Earth“

Research on Remote Sensing: Igor Feliciano, Prof.

Dr. Arismar Cerqueira and Juliano Mologni

Log-periodic antenna

Log-periodic antenna fixed ate the side of the airplane

Material: PEC

Model with the plane

FEM: Finite elements: frequency domain

Iterative Solver

1 Processor

Frequency 250MHz

Just the horizontal antenna turned on

11,2m

2,3m

12m

FEM: Finite elements: frequency domain

Iterative Solver

1 Processor

Frequency 250MHz

Just the horizontal antenna turned on

FEM : Finite elements: frequency domain

Iterative Solver

1 Processor

Frequency 250MHz

Just the horizontal antenna turned on

TRANSIENT : Finite elements: time domain

Rejection analysis -

HFSS IE : MoM – Frequency domain

TRANSIENT : Trees RCS

Incident wave

P Band

TRANSIENT : Trees RCS

Incident wave

P Band

TRANSIENT : Trees RCS

Incident plane wave - 450MHz P Band

Comparating between the two frequencys

TRANSIENT : Trees RCS

Antenna Development for UAVs

Lab. WOCA

Uso do solver FEBI para

simular uma estrutura

muitos lambdas de

comprimento

Development of advanced furnaces using HFSS

Prof. Dr. Arismar Cerqueira Sodré Junior

Ph.D. on Telecommunications Engineering

National Institute of Telecommunications (Inatel)

E-mail: arismar@inatel.br

http://www.inatel.br/docentes/arismar/

Acknolodegements