Browsing by Author "Rodriguez Postigo, Paolo Alexander"

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    Compact triplexer with open ring resonators as microstrip trisection bandpass filters for asymmetric response
    (Scopus, 2013) Castillo Araníbar, Patricia Raquel; Rodriguez Postigo, Paolo Alexander; Garcia Lamperez, Alejandro; Segovia Vargas, Daniel
    Open loop ring resonators are used as the basic block of a compact planar triplexer, they are used in cascaded trisection (CT) filters, in order to reduce the circuit size. The CT filter has a cross coupling that produces a single attenuation pole at finite frequency used to shape the bandpass response. Ring resonators are properly located with respect to the input and output feed lines, in order to get good isolation response, and also to suppress channel interfering and to meet the design specifications for applications in mobile communication. The triplexer was fabricated and measured to verify the viability of the design with good agreements between the measurements and the simulations. © 2013 IEEE.
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    Design and simulation of triplexer for mobile communications using trisection resonators filters
    (Scopus, 2013) Rodriguez Postigo, Paolo Alexander; Castillo Araníbar, Patricia Raquel
    This paper presents a microstrip triplexer with multiband performances by using cascaded trisection (CT) filters. Each CT section is composed by three directly coupled resonators with a cross coupling. The cross coupling produces a single attenuation pole at the finite frequency. Furthermore, each trisection filter controls a specific channel frequency independently. To obtain good isolation response, the resonators are properly located with respect to the input and output feeding lines to suppress the channel interfering and meet the design specifications for mobile communications. © 2013 IEEE.