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In this paper, we propose a hexagonal microstrip dual - mode band pass filter by optimizing various geometrical parameters associated with the filter geometry using IE3D full-wave simulation software. The response of the optimized filter is studied and analyzed and the results have been reported. Work also explores the possibility of changing the type of the filter response from Elliptical to Chebyshev...
In this paper, we investigate the cause of the second harmonic of the parasitic pass-band of coupled-serial-shunted lines band-pass filters. Filters are employed substrate suspension, wavy-edge coupling, ring resonators, and a combination of the wavy-edge coupling and ring resonators to suppress the harmonic pass-band. Using a continuous perturbation of the wavy-edge and ring resonators of the harmonic...
Two quarter-wave resonator microstrip bandpass filters with generalized chebyshev response are proposed in this work. By using the delay lines and observing the phase relationship between source and resonators, the phase and amplitude of cross couplings can be easily realized so that a generalized chebyshev response can be implemented. Furthermore, the cross coupling for interdigital structure is...
Open-ended stub loaded parallel coupled short-circuited three-line structure is proposed to realize a new wideband bandpass filter. The characteristics of the new coupling unit were firstly investigated based on simulation, followed by proposing a two-step design scheme: 1. A Chebyshev filter is synthesized on the desired passband, using symmetric three-line coupling units. 2. The transmission zeros...
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