A5082808465- Particle Detector Development and Performance
- Microwave Imaging and Scattering Analysis
- Radiation Detection and Scintillator Technologies
- Wireless Body Area Networks
- Radiation Effects in Electronics
- Particle physics theoretical and experimental studies
- Terahertz technology and applications
- Millimeter-Wave Propagation and Modeling
- Geophysical Methods and Applications
- Advanced biosensing and bioanalysis techniques
- Plasmonic and Surface Plasmon Research
- Advanced SAR Imaging Techniques
- Ultra-Wideband Communications Technology
- VLSI and Analog Circuit Testing
- Energy Harvesting in Wireless Networks
- CCD and CMOS Imaging Sensors
- Analog and Mixed-Signal Circuit Design
- Metamaterials and Metasurfaces Applications
- Radio Frequency Integrated Circuit Design
- Antenna Design and Analysis
- Plasma Diagnostics and Applications
- Traffic control and management
- Peer-to-Peer Network Technologies
- Electrostatic Discharge in Electronics
- Microwave and Dielectric Measurement Techniques
Universidade de São Paulo
2016-2025
Hospital Universitário da Universidade de São Paulo
2023-2024
Association of the Technological Integrated Systems Laboratory
2021
Universidade Politecnica
2021
Inesc P&D Brasil
2020
Universidade Federal do ABC
2011-2016
Cancer and its diverse variations pose one of the most significant threats to human health well-being. One aggressive forms is blood cancer, originating from bone marrow cells disrupting production normal cells. The incidence cancer steadily increasing, driven by both genetic environmental factors. Therefore, early detection crucial as it enhances treatment outcomes improves success rates. However, accurate diagnosis challenging due inherent similarities between cancerous Although various...
The purpose of this study is development a novel high-performance low-Petahertz (PHz) biosensor for non-melanoma skin cancer (NMSC) diagnosis. presented device designed to work within microwave imaging regime, which promising alternative conventional diagnostic methods such as visual examination, dermoscopy, and biopsy. suggested incorporates dual-band perfect absorber (operating bands at 0.909 PHz 1.215 PHz) constructed using aluminum layers separated by dielectric material. Numerical...
The SALSA chip is a future readout ASIC foreseen for the MPGD detectors, developed in framework of EIC collider project, to equip trackers EPIC experiment. It designed be versatile, order adapted other usages like TPC, or photon detectors. integrates frontend block and an ADC each 64 channels, associated configurable digital DSP processor meant correct data reduce raw flux, limit output bandwidth. will compatible with continuous DAQ, but also able work triggered environment. Several...
Cervical cancer belongs to the most dangerous types of cancers posing considerable threat women’s survival. It is often diagnosed in advanced stages as precancerous lesions are symptom-free and difficult identify. Microwave imaging, especially terahertz (THz) range, a convenient noninvasive detection tool. enables characterization biological tissues discrimination between healthy malignant ones. This study presents novel triple-band biosensor based on metamaterials (MTMs). By leveraging...
This paper presents the test results of second prototype SAMPA, ASIC designed for upgrade read-out front end electronics ALICE Time Projection Chamber (TPC) and Muon (MCH). SAMPA is made in a 130 nm CMOS technology with 1.25 V nominal voltage supply provides 32 channels, selectable input polarity, three possible combinations shaping time sensitivity. Each channel consists Charge Sensitive Amplifier, semi-Gaussian shaper 10-bit ADC; Digital Signal Processor digital filtering compression...
This paper presents the SAMPA, an ASIC designed for upgrade of read-out front end electronics ALICE Time Projection Chamber (TPC) and Muon Chambers (MCH). SAMPA is made in a 130 nm CMOS technology with 1.25 V nominal voltage supply includes 32 channels, selectable input polarity, five possible combinations shaping time sensitivity. Each channel comprises Charge Sensitive Amplifier, semi-Gaussian shaper 10-bit ADC, followed by Digital Signal Processor. A prototype multi project run was...
Conseil Européen pour la Recherche Nucléaire is currently undergoing a major upgrade within the A Large Ion Collider Experiment (ALICE) detectors, one of four main experiments at Hadron (LHC) accelerator. The LHC luminosity will increase making heavy ions collision rate rise from 500 Hz to 50 kHz. Both time projection chamber (TPC) and muon (MCH) detectors demand new faster readout electronics, which support continuous cope with this higher rate. This paper presents serialized analog-digital...
An improved confocal imaging algorithm is proposed for breast cancer detection using radar-based ultra wideband technology. The improvements consider a scenario of heterogeneous where the tumor mostly located near glandular tissue in ductal region displaced from center breast. robustness demonstrated waveform sets generated simulated system. results showed that use provides better identification and localization when considering dense with only 2% increase computational cost.
Technology scaling made possible to increase IC capabilities from one node the next by adding more transistors within same die area while keeping a low pin count. As consequence, test complexity increased exponentially, requiring engineers use not only better pattern generation software, but also powerful and expensive Automatic-Test-Equipments (ATE), usually viable accessible for small fabless start-ups universities. In this work, we propose low-cost flexible ATE intended manufacturing...
This work reports the realization of a microwave imaging system prototype focused on low-cost and portability. A power loss study in several breast layers has been done, pointing to 5.0 cm penetration capacity. mechanical dielectric coupling medium was proposed together with phantom made mimic internal tissues. Firmware, software protocol were developed an embedded UWB transceiver platform. The scattered collected signals applied improved confocal algorithm, preliminary results showed that...
This work presents the design and experimental results of a current mode Scalable Low-Voltage Signaling (SLVS) transceiver in 130 nm CMOS technology. The proposed transmitter includes feedback control which reduces common-mode voltage variations terms Vds bias transistor, an enable/disable operation mode, minimizes power consumption when data transmission is not requested. A rail-to-rail comparator topology was used to receiver circuit being robust transient with low high speed. DC 4.6 mW at...
This paper presents an assessment for a breast cancer detection microwave imaging system design, employing multi-software simulation framework. The work aimed to identify circuits design key parameters obtain quality images able reveal malignant tumors. A set of backscattering signals were extracted from 32 antenna simulated scenario, and applied proposed receiver model, including Low Noise Amplifier, Phased Locked Loop Analog Digital Converter. implementation constraints arising in the...
This paper presents an evaluation of a low-cost apparatus for Stepped-Frequency Continuous Wave (SFCW) radar-based Microwave Imaging (MWI) systems aimed at breast cancer detection. Software Defined Radio (SDR) is programmable device with the potential to circumvent Vector Network Analyzer usage realize MWI system, especially during prototyping stage, once more suitable system not established yet. BladeRF, SDR platform, coupled power amplifier and low noise amplifier, using two Vivaldi...
Much has been advanced in the area of Smart Grids, and such progress not bigger only because related technology is usually restricted often relies on proprietary components. Using Agent-Based paradigm, we intend to build an open, scalable, interoperable Grid architecture complaince with IEEE FIPA specifications. In this paper, present a model for remote measurement environment order validate use agent Advanced Metering Infrastructure (AMI) systems.
Breast cancer is the second leading cause of death in women. Aiming to increase early detection rate, this work describes an analog circuit that makes possible Equivalent Time Sampling technique Ultra-Wideband (UWB) front-end used for low-cost breast screening applications. The was developed mature TSMC 180nm technology and approach build a single-ended topology reduce area power. designed layout occupies just 179 <tex xmlns:mml="http://www.w3.org/1998/Math/MathML"...
This article presents the first known physical implementation of a RISC-V core based on FemtoRV32 project, using Quark to implement RV32I instruction set. Our primary goal is validate micro-architecture for ASIC development. Implemented 180 nm CMOS technology, demonstrates functionality at frequencies as high 120 MHz, which represents 150% improvement over FPGA implementations. Power dissipation tests estimate range 68 108 mW, under different PVT corners, and slack margins 0.5 2 ps,...
This paper presents the design of a programmable gain amplifier (PGA) to be used in ultra-wide band (UWB) breast cancer detection receiver. The circuit architecture compromises an input fully differential difference (FDDA) with folded cascode and floating current class AB output adjustable voltage feedback loop. Furthermore, different compensation capacitors were enhance its bandwidth according configuration. It has four values (V/V) 5.5, 8.25, 16.5 33, using independent common mode voltages...