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This paper presents a new compact wideband - bandpass filter with notch at center frequency 6.3GHz. The filter has been realized by using modified rectangular ring resonator with λg/4 stub. The center frequency is 6.3GHz and passband of the filter from 4.0 GHz to 8.6 GHz. Insertion losses are less than 1.4dB and return losses are 14dB and 29dB in the two passband. Attenuation level of the notch is...
This paper presents a simple technique to design the seven poles low pass filter using defected ground structure (DGS) having better than -20 dB rejection up to 8fc. The proposed low pass filter (LPF) does not have any, discontinuity elements and the repeated high low impedance lines, which are essential for design of conventional LPF. Only DGS patterns and one capacitive transmission line used for...
This paper presents a new design method of compact five poles low pass filter using defected ground structure (DGS). The proposed low pass filter (LPF) is designed for 2.5 GHz cut off frequency having better than -25 dB rejections up to 3.36 fc. It does not have any, discontinuity elements and the repeated high low impedance lines, which are essential for the design of conventional LPF. Only DGS patterns...
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