Artículo
New design of a variable impedance based on polarized diodes at microwave frequency
Venere, Alejandro Javier
; Hurtado, Martin
; López la Valle, Gerardo Ramón; Muravchik, Carlos Horacio
Fecha de publicación:
05/2017
Editorial:
Institute of Electrical and Electronics Engineers
Revista:
Ieee Microwave And Wireless Components Letters
ISSN:
1531-1309
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
In this letter, we present a new variable impedance termination consisting of two polarized diodes. To generate a complex-valued impedance, two controlled current sources polarize the diodes, which are interconnected with a Wilkinson power divider through transmission lines of different electric lengths. Because of the reduced number of diodes, this structure presents low power consumption and simple control. We validated the proposed design by implementing a prototype at the operating frequency of 1575.42 MHz. Mapping the measured results in the Smith chart, the impedance can produce reflection coefficients with full-phase coverage within the circle of magnitude 0.35 over a frequency range of 1.5-1.6 GHz.
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Articulos(LEICI)
Articulos de INSTITUTO DE INVESTIGACIONES EN ELECTRONICA, CONTROL Y PROCESAMIENTO DE SEÑALES
Articulos de INSTITUTO DE INVESTIGACIONES EN ELECTRONICA, CONTROL Y PROCESAMIENTO DE SEÑALES
Citación
Venere, Alejandro Javier; Hurtado, Martin; López la Valle, Gerardo Ramón; Muravchik, Carlos Horacio; New design of a variable impedance based on polarized diodes at microwave frequency; Institute of Electrical and Electronics Engineers; Ieee Microwave And Wireless Components Letters; 27; 5; 5-2017; 470-472
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