A Novel Fully Integrated 4-Bit IFM Subsystem Using Band-Stop Filters





Arduino, Filters, Microstrip, IFM


In this paper a 2-4 GHz microstrip IFM (Instantaneous Frequency Measurement) subsystem that uses Wilkinson power dividers, frequency discriminators based on band-stop filters and a DC arduino section is reported. The device uses band-stop filters as an alternative to delay lines, commonly used for IFM. The resonators are responsible for frequency adjustment, according to half guided wavelength resonator length, and the distance between the transmission line and the resonator.  A fully micro-controlled 125 MHz resolution IFM subsystem is designed and tested. Results of the IFM subsystem composed by filters, 4-way power dividers and an Arduino board are described.


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How to Cite

Romero Oliveira de Souza, S., Francisco Alves de Souza, M., Pereira Pontes, L., Tavares de Melo, M., & llamas-Garro, I. (2020). A Novel Fully Integrated 4-Bit IFM Subsystem Using Band-Stop Filters. Journal of Microwaves, Optoelectronics and Electromagnetic Applications (JMOe), 19(3), 396–406. https://doi.org/10.1590/2179-10742020v19i3843



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