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The present article exhibits the improvement in wide stopband harmonic suppression techniques of fourth‐order compact hairpin‐line Chebyshev type narrowband (4%) bandpass filter centered at 2.5 GHz by meander spur‐line. Initially, the compactness of 42% over the conventional hairpin‐line cell has been achieved by folding the open‐end arms of the hairpin line to folded hairpin‐line cell. Accordingly,...
Design of a compact band pass filter using parallel-coupled half-wavelength microstrip resonators with improved stopband skirt characteristics and harmonic suppression is presented in this paper. The proposed filter has fractional bandwidth of 20% subject to design frequency of 5.25 GHz for WLAN applications. Periodic triangular corrugations have been employed in each coupled section of parallel lines...
Design of a folded miniaturized band pass filter using parallel-coupled half-wavelength microstrip resonators with improved stopband skirt characteristics and harmonic suppression is presented in this paper. The proposed filter has fractional bandwidth of 20% subject to design frequency of 5.25 GHz. Koch fractal geometry has been employed in each section of coupled lines for improvement in bandwidth...
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