Stripline combline filters on substrates designed on high-permittivity ceramic materials
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Stripline bandpass combline filters designed on high-permittivity ceramic materials are analyzed. In order to form coupling between codirectional quarter-wave resonators, they are connected in the regions of their short-circuited ends by a stripline conductor. Features of the characteristics of such filters are revealed and compared with the parameters of other ceramic microwave filters. Experimental characteristics of a stripline filter designed on a ceramics with permittivity ɛr = 38 are presented. The experimental results are in good agreement with results of computer simulation.
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