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An E-shape resonator dualband common mode filter is introduced in this paper. The proposed design features the advantages of two-layer printed circuit board design with solid ground plane. Furthermore, the equivalent common mode circuit of coupled step impedance quarter-wavelength resonator improves the common mode suppression performance.
To develop common mode filter design, a tri-section quarter wavelength resonator common mode filter is introduced in this paper. The step impedance quarter wavelength resonator in common mode provides capabilities of tunable suppression bands by controlling the 1st and 3rd resonant frequency. In addition, the transmission zero in differential mode due to the difference of phase velocity between common...
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