microstrip low-pass filter with sharp roll off and wide stop-band using multiple cascaded modified radial stubs resonators

نویسندگان

hamid radmanesh

aeronautical university of science and technology, tehran, iran ashkan zhaleh

islamic azad university

چکیده

this paper presents a novel microstrip low-pass filter with good performance. a complete detailed theoretical analysis for the proposed filter is given using equivalent circuit models. the proposed filter applying multiple cascaded modified radial stubs resonators provides a sharp cut off frequency response that has a 185 db/ghz roll off rate. also, u-shaped attenuators provide a wide stop-band about 14fc with more than -20 db rejection. the filter has an insertion loss less than 0.027 db from dc to 1.31 ghz. the proposed filter has a high figure of merit, equal to 32317. the experimental results are in fair agreement with the simulated results.

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عنوان ژورنال:
journal of communication engineering

جلد ۵، شماره ۲، صفحات ۲۵-۵۱

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