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View article: UAV base-station design method and optimization for urban environment communication with 5G cellular network
UAV base-station design method and optimization for urban environment communication with 5G cellular network Open
During unexpected or temporary events, base transceiver stations (BTSs), also known as base stations (BSs), may be unable to fully meet the flexibility and resilience requirements of upcoming cellular networks. A promising solution to this…
View article: Low‐profile circular‐polarized fractal antenna design with reduced orbital angular momentum beam divergence
Low‐profile circular‐polarized fractal antenna design with reduced orbital angular momentum beam divergence Open
The authors introduce a novel low‐profile circular‐polarized three‐layer fractal antenna design to reduce beam divergence in orbital angular momentum (OAM) applications at microwave frequencies. The top layer of the proposed design has a p…
View article: Nonlinear Testing-based EMI Characterization of Wireless Communication Transmitter with Microwave Power Amplifier
Nonlinear Testing-based EMI Characterization of Wireless Communication Transmitter with Microwave Power Amplifier Open
An innovative nonlinear (NL) modeling of K-band power amplifier (KPA) designed and fabricated in Gallium Nitride (GaN) technology operating at frequency f0 = 24 GHz is investigated in this paper. Two KPA prototypes are characterized by sin…
View article: Innovative Methodology to Improve Flexible Antenna Percentage V-folding Performance
Innovative Methodology to Improve Flexible Antenna Percentage V-folding Performance Open
The folding antennas are anticipated to become mandatory because of integration necessity according to communication object shapes.The effect of folded antennas on electromagnetic (EM) radiation is an open question for RF and microwave wir…
View article: Stop-band type NGD RLC-resonant circuit sensitivity analysis
Stop-band type NGD RLC-resonant circuit sensitivity analysis Open
This paper investigates on the rarely studied negative group delay (NGD) RF circuit with innovative stop-band (SB) behavior. In difference with the classical filter, the SB-NGD function is identified in function of frequency bands where th…
View article: Bi-CMOS Design of a*exp(-j*φ0) Phase Shifter as Miniature Microwave Passive Circuit Using Bandpass NGD Resonant Circuit
Bi-CMOS Design of a*exp(-j*φ0) Phase Shifter as Miniature Microwave Passive Circuit Using Bandpass NGD Resonant Circuit Open
The purpose of this paper is to study the RF/microwave constant phase shift (CPS) designed as an integrated circuit (IC) in 130-nm Bi-CMOS technology.The CPS understudy is constituted by a bandpass (BP) negative group delay (NGD) passive c…
View article: CSRR DGS-Based Bandpass Negative Group Delay Circuit Design
CSRR DGS-Based Bandpass Negative Group Delay Circuit Design Open
The unfamiliar negative group delay (NGD) circuit is the less familiar function for most of RF and microwave design engineers. Among the existing types, the bandpass (BP) NGD type circuits are the most convenient for the wireless communica…
View article: Systematic Flexible Antenna Performance Study of V-folding Percentage Influence
Systematic Flexible Antenna Performance Study of V-folding Percentage Influence Open
International audience
View article: Dual Stopband Type NGD Network Design for True Time-delay Based Multi-beam Steerer Application
Dual Stopband Type NGD Network Design for True Time-delay Based Multi-beam Steerer Application Open
An original application of stopband (SB) type negative group delay (NGD) electronic function is introduced.The unfamiliar SB-NGD circuit is designed with RLC-network lumped passive topology.The SB-NGD circuit is exploited to operate as a t…
View article: Smart Systems: Theory and Advances
Smart Systems: Theory and Advances Open
This book aims to highlight the strength and state-of-art of some techniques and methods applied to intelligent systems. Rather to cover the variety of techniques and methods available in the literature, which is out of scope of this book,…
View article: NEW ANALYTICAL APPROACH TO ESTIMATE THE ELECTROMAGNETIC SPECTRUM FROM DEVICES SUBMITTED TO HIGH VOLTAGES
NEW ANALYTICAL APPROACH TO ESTIMATE THE ELECTROMAGNETIC SPECTRUM FROM DEVICES SUBMITTED TO HIGH VOLTAGES Open
Along with technology advances, which includes but not limited to electronics, microelectronics, optoelectronics, photonics, signal processing, and programing has come the interest on fast, multifunction, lightweight, and low power consump…
View article: Estimation and Mapping of the Received Power Level of Digital Signals TV Using Spatial Interpolation Methods
Estimation and Mapping of the Received Power Level of Digital Signals TV Using Spatial Interpolation Methods Open
The signal digitization process of the open television system is still in progress, therefore, the study of the digital signal propagation has great importance so that broadcasters can develop and improve the transmission service. The fiel…
View article: Design Method of Constant Phase-Shifter Microwave Passive Integrated Circuit in 130-nm BiCMOS Technology With Bandpass-Type Negative Group Delay
Design Method of Constant Phase-Shifter Microwave Passive Integrated Circuit in 130-nm BiCMOS Technology With Bandpass-Type Negative Group Delay Open
The miniaturization and application development are the expected challenges on the today engineering design research on bandpass (BP) type negative group delay (NGD) circuit. To overcome this technical limit, an innovative contribution on …
View article: Theory and Original Design of Resistive-Inductive Network High-Pass Negative Group Delay Integrated Circuit in 130-nm CMOS Technology
Theory and Original Design of Resistive-Inductive Network High-Pass Negative Group Delay Integrated Circuit in 130-nm CMOS Technology Open
International audience
View article: Original Application of Stop-Band Negative Group Delay Microwave Passive Circuit for Two-Step Stair Phase Shifter Designing
Original Application of Stop-Band Negative Group Delay Microwave Passive Circuit for Two-Step Stair Phase Shifter Designing Open
International audience
View article: Suitability of passive RC-network-based inductorless bridged-T as a bandpass NGD circuit
Suitability of passive RC-network-based inductorless bridged-T as a bandpass NGD circuit Open
Purpose The purpose of this paper is to study, a bridged-T topology with inductorless passive network used as a bandpass (BP) negative group delay (NGD) function. Design/methodology/approach The BP NGD topology under study is composed of a…
View article: 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting Open
Near-field radiative Wireless Power Transfer (WPT)has the advantage of high-power WPT. In this paper, an all textile high-power WPT receiver is realized for the first time, using an embroidered coil and a printed tuning capacitor on a text…
View article: Bandpass NGD Time- Domain Experimental Test of Double-Li Microstrip Circuit
Bandpass NGD Time- Domain Experimental Test of Double-Li Microstrip Circuit Open
International audience
View article: YIG Matrix Based Multiband Magneto-Dielectric Cylindrical Resonator Antenna
YIG Matrix Based Multiband Magneto-Dielectric Cylindrical Resonator Antenna Open
A multiband magneto-dielectric resonator antenna with cylindrical geometry is proposed in this paper. The resonator is composed of yttrium iron garnet (YIG) with chemical composition Y3Fe2(FeO4)3. The final structure is built on a low-cost…
View article: Steering and organizing committee
Steering and organizing committee Open
AP-S) and the US National Committee (USNC) for the International Union of Radio Science (URSI).It is intended to provide an international forum for the exchange of information on state-of-the-art research on antennas, propagation, electrom…
View article: Millimeter Wave Chipless RFID Authentication Based on Spatial Diversity and 2-D Classification Approach
Millimeter Wave Chipless RFID Authentication Based on Spatial Diversity and 2-D Classification Approach Open
International audience
View article: Estimation of electric and magnetic fields in a 230 kV electrical substation using spatial interpolation techniques
Estimation of electric and magnetic fields in a 230 kV electrical substation using spatial interpolation techniques Open
This study presents the estimation of the electric and magnetic fields level inside a 400 MVA electrical substation. Located in the northeast region of Brazil, the power plant operates with 230 and 69 kV at 60 Hz frequency. The on‐site mea…
View article: Design and Test of Crab-Shaped Negative Group Delay Circuit
Design and Test of Crab-Shaped Negative Group Delay Circuit Open
International audience
View article: IEEE Antennas and Propagation Society Symposium
IEEE Antennas and Propagation Society Symposium Open
the Hyatt Regency and Grand Hyatt, in
View article: Analysis of microstrip coupled line based data signal and energy hybrid receiver
Analysis of microstrip coupled line based data signal and energy hybrid receiver Open
International audience
View article: Original Theory of NGD Low Pass-High Pass Composite Function for Designing Inductorless BP NGD Lumped Circuit
Original Theory of NGD Low Pass-High Pass Composite Function for Designing Inductorless BP NGD Lumped Circuit Open
This paper aims to develop an original circuit theory of inductorless NGD topology. The considered passive cell comprised of resistor and capacitor elements without inductor operates as a bandpass (BP) NGD function. The specifications of N…
View article: Analytical Design of Dual-Band Negative Group Delay Circuit With Multi-Coupled Lines
Analytical Design of Dual-Band Negative Group Delay Circuit With Multi-Coupled Lines Open
This paper develops an innovative design method of a multi-coupled line (CL) topology of low-loss dual band negative group delay (NGD) circuit. The proposed is conceived using three transmission lines (TLs) with different length in which i…
View article: Measuring dielectric properties by two methods using software‐defined radio
Measuring dielectric properties by two methods using software‐defined radio Open
Two methods for measuring the dielectric constant and loss tangent of the dielectric materials using software‐defined radio (SDR) are presented, which may be used as an alternative to the expensive vector network analysers (VNA). The first…