Design and Validation of a Ten-Port Waveguide Reflectometer Sensor: Application to Efficiency Measurement and Optimization of Microwave-Heating Oven
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URI: http://hdl.handle.net/10317/1471Compartir
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Pedreño Molina, Juan Luis; Monzó Cabrera, Juan; Lozano Guerrero, Antonio José; Toledo Moreo, Ana BelénGrupo de investigación
Electromagnetismo y MateriaÁrea de conocimiento
Teoría de la Señal y las ComunicacionesFecha de publicación
2008Editorial
MDPICita bibliográfica
PEDREÑO MOLINA, J.L., MONZÓ CABRERA, J. LOZANO GUERRERO, A., TOLEDO MOREO, A. Design and Validation of a Ten-Port Waveguide Reflectometer Sensor: Application to Efficiency Measurement and Optimization of Microwave-Heating Oven. Sensors, Vol 8:7833-7849, 2008.ISSN 1424 8220Revisión por pares
SíPalabras clave
ReflectometerMicrowave sensor
Scattering parameter
Neural calibration
Resumen
This work presents the design, manufacturing process, calibration and validation
of a new microwave ten-port waveguide reflectometer based on the use of neural networks.
This low-cost novel device solves some of the previous reflectometer shortcomings such as
non-linear behavior of power sensors, noise presence and the complexity of the calibration
procedure, which is often based on complex mathematical equations. These problems,
which imply the reduction of the reflection coefficient measurement accuracy, have been
overcome by using a higher number of probes than usual six-port configurations and by
means of the use of Radial Basis Function (RBF) neural networks in order to reduce the
influence of noise and non-linear processes over the measurements. Additionally, this sensor
can be reconfigured whenever some of the eight coaxial power detectors fail, still providing
accurate values in real time. The ten-port performance has been compared against a highcost
measurement ...
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