Search Results - "Spadoti, D."

Optically Controlled Reconfigurable Antenna Array for mm-Wave Applications by da Costa, I. F., Cerqueira S, Arismar, Spadoti, D. H., da Silva, L. G., Ribeiro, J. A. J., Barbin, S. E.

“…This letter reports the concept and development of the first optically controlled reconfigurable antenna for millimeter-wave (mm-wave) applications. It is…”
Get full text

Technique for constructing hemispherical dielectric lens antennas by dos Santos, R. A., Fré, G. L., Spadoti, D. H.

“…Hemispherical dielectric lens antennas can be designed to present multifunctional operation. Simple and efficient mathematical modeling to design these…”
Get full text

Omnidirectional Ultra-wideband Superellipse Patch Antenna for mm-Waves Applications by Dos Santos, R. A., Penchel, R. A., Rehder, G. P., Spadoti, D. H.

“…This paper presents an omnidirectional ultra-wideband printed antenna for millimeter waves applications. A novel superellipse based model is proposed to…”
Get full text

A High-Gain Hemispherical Dielectric Lens Antenna Operating Simultaneously in Narrowband or Wideband for X-band Applications by Santos, R. A. dos, Fré, G. L. S., Spadoti, D. H.

“…Abstract A hemispherical dielectric lens antenna is proposed to provide beam-steering for communication networks operating in X-band. Two different printed…”
Get full text

Adaptive Modulation and Code Strategy to Reduce Energy Consumption in Elastic Optical Network by Bandiri, S. Y. M., Pimenta, T. C., Spadoti, D. H.

“…Abstract In this paper, the novel Adaptive Modulation and Code (AMC) algorithm aims to reduce energy consumption in elastic optical network is developed. The…”
Get full text

Optically controlled reconfigurable antenna for 5G future broadband cellular communication networks by Costa, I. F. da, Spadoti, D. H., Sodré Jr, A. C., Silva, L. G. da, Rodriguez, S., Puerta, R., Olmos, J. J. V., Monroy, T.

“…Abstract This paper presents an optically controlled reconfigurable antenna for millimetre-wave frequency range. Silicon switches are used to control the…”
Get full text

Comparison of Anisotropy Reduction Strategies for Transformation Optics Designs by Junqueira, M. A. F. C., Gabrielli, L. H., Spadoti, D. H.

“…In this paper, we present new strategies to reduce anisotropy in transformation optics designs and compare them to other techniques. Perturbation functions are…”
Get full text

Implementation of a Multi-Gbit/s and GFDM-based Optical-Wireless 5G Network by Borges, R. M., Marins, T. R. R., Cunha, M. S. B., Spadoti, D. H., Mendes, L. L., Cerqueira S. Jr, Arismar

“…Abstract We report the implementation of an optical-wireless 5G network based on generalized frequency division multiplexing (GFDM) and multi-Gbit/s…”
Get full text

Photonic crystal optical fibers for dispersion compensation and Raman amplification: Design and experiment by Digweed-Lyytikainen, K., De Francisco, C. A., Spadoti, D., Juriollo, A. A., Rosolem, J. B., Ayres Neto, J. B. M., Borges, B. V., Canning, J., Romero, M. A.

“…An optimal design of photonic crystal optical fibers for simultaneous dispersion compensation and Raman amplification is investigated by numerical simulation…”
Get full text

Requirements for Efficient Raman Amplification and Dispersion Compensation Using Microstructured Optical Fibers by Cani, S. P. N., De Francisco, C. A., Spadoti, D. H., Nascimento, V. E., Borges, B.-H. V., Calmon, L. C., Romero, M. A.

“…The design and performance of microstructured optical fibers (MOFs) for simultaneous dispersion compensation and Raman amplification is numerically…”
Get full text

Silicon Waveguide Optically Tunable THz Filter by Fre, G. L. S., Beltran-Mejia, F., Saito, L. A. M., Spadoti, D. H.

“…In this study, we present a tunable THz band pass filter design, using photo-excited low-loss slotted waveguide in a integrated CMOS compatible technology. The…”
Get full text

Full-vectorial to scalar FD-SOR formulations for optical waveguide modelling: a comparative study by Spadoti, D.H., de Francisco, C.A., Nascimento, V., Borges, B.-H. V., Romero, M.A.

“…This paper presents a comparative study among three different formulations to analyse optical waveguides. All treatments, namely, full‐vectorial,…”
Get full text

Dual-use system combining simultaneous active radar & communication, based on a single photonics-assisted transceiver by Melo, Suzanne, Pinna, Sergio, Bogoni, Antonella, da Costa, I. F., Spadoti, D. H., Laghezza, Francesco, Scotti, Filippo, Cerqueira, S. Arismar

“…This paper report on the development and field trial of a dual-band and dual-use system based on a single photonics-based transceiver and a single radiating…”
Get full text

A novel dual-polarization and dual-band slotted waveguide antenna array for dual-use radars by Arismar, Cerqueira S., da Costa, I. F., Pinna, S., Melo, S., Laghezza, F., Scotti, F., Ghelfi, P., Spadoti, D. H., Bogoni, A.

“…This paper reports the development of a dual-band slotted waveguide antenna array with orthogonal polarizations for dual-use radars. It can be applied for…”
Get full text

Frequency-agile E-shaped printed antenna for millimeter waves applications by da Costa, I. F., Spadoti, D. H., Arismar, Cerqueira S.

“…This article describes the development of a low profile and frequency-agile printed antenna for millimeter waves applications. The antenna structure is based…”
Get full text

A dual-band slotted waveguide antenna array for radars applications by da Costa, I. F., Santos, R. A., Patricio, S. C., Ribeiro, J. A. J., Spadoti, D. H., Bogoni, A., Cerqueira S, Arismar

“…This paper describes the design and fabrication of a novel dual-band slotted waveguide antenna array for radar applications. The radiation structure is…”
Get full text

A liquid-filled W-type optical fiber temperature sensor by Petrini, P. A., Pizolato, J. C., De Francisco, C. A., Alcantara, L. D. S., Salgado, F. C., Spadoti, D. H.

“…This paper describes the theoretical analysis and design of a temperature sensor based on a hollow core W-type optical fiber. The core region is filled with a…”
Get full text

Optically Controlled Multiresonator for Passive Chipless Tag by Alves, A. A. C., Spadoti, D. H., Bravo-Roger, L. L.

“…In this letter, an optically controlled passive multiresonator for chipless tag design of radio frequency identification systems operating in UHF range…”
Get full text

Use of a novel wide-angle FD-BPM for loss performance assessment in randomly perturbed photonic crystal fibers by Nascimento, V. E., De Francisco, C. A., Spadoti, D. H., Romero, M. A., Borges, B. V.

“…A novel wide‐angle finite‐difference beam‐propagation method is applied to the analysis of confinement losses in photonic crystal fibers (PCFs). The method is…”
Get full text

Dual-band slotted waveguide antenna array for adaptive mm-wave 5G networks by da Costa, I.F., Cerqueira, S. Arismar, Spadoti, D.H.

“…This paper describes the design, simulation and measurement of a dual-band slotted waveguide antenna array for adaptive 5G networks, operating in the…”
Get full text