Now showing items 1-10 of 1130
Optically Controlled Reconfigurable Antenna Array for mm-Wave Applications
(Ieee-inst Electrical Electronics Engineers Inc, 2017-01-01)
This letter reports the concept and development of the first optically controlled reconfigurable antenna formillimeter-wave (mm-wave) applications. It is based on a slotted-waveguide antenna array and two photoconductive ...
New contributions to the determination of resonance frequencies of rectangular microstrip antennas by neural networks
This paper uses artificial neural networks (ANN) to compute the resonance frequencies of rectangular microstrip antennas (MSA), used in mobile communications. Perceptron Multi-layers (PML) networks were used, with the ...
Simple Excitation Model for Coaxial Driven Monopole Antennas
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2010)
A new excitation model for the numerical solution of field integral equation (EFIE) applied to arbitrarily shaped monopole antennas fed by coaxial lines is presented. This model yields a stable solution for the input ...
Optimized corrugated tapered slot antenna for mm-Wave applications
(IEEE Institute of Electrical and Electronics Engineers, 2018)
We present a novel approach to design a high-performance tapered slot antenna (TSA) at millimeter-wave frequencies. Commonly, TSAs are designed using profiles expressed as simple functions (linear, exponential, Fermi, or ...
Parametric study of retangular patch antenna using denim textile material
(Rio de Janeiro, 2014-03-26)
—This paper presents a textile patch antenna designed for WBAN applications at 2.45 GHz ISM band. The antenna uses denim as substrate and conductive fabric for the ground plane and radiator layers. The main purpose ...
Determination of resonant frequencies of triangular and rectangular microstrip antennas, using artificial neural networks
This paper presents models that can be used in the design of microstrip antennas for mobile communications. The antennas can be triangular or rectangular. The presented models are compared with deterministic and empirical ...
Polarization Diversity On Esm Systems
(Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo, 2017)
Weight vector estimation of circular arrays of antennas using Artificial Neural Networks
This paper presents a model for the control of the radiation pattern of a circular array of antennas, shaping it to address the radiation beam in the direction of the user, in order to reduce the transmitted power and to ...