04 مرداد 1403
سهراب مجيدي فر

سهراب مجیدی فر

مرتبه علمی: استادیار
نشانی:
تحصیلات: دکترای تخصصی / مهندسی برق (الکترونیک)
تلفن: 1105
دانشکده: دانشکده مهندسی برق

مشخصات پژوهش

عنوان
Design of a sharp response microstrip lowpass filter using taper loaded and radial stub resonators
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
Lowpass , circuit model, scaling, EM simulation
پژوهشگران سهراب مجیدی فر (نفر اول)، محسن حیاتی (نفر دوم)

چکیده

This paper proposes a compact microstrip lowpass filter with a wide stopband and a very sharp roll-off. This structure consists of two dual taper-loaded resonators that are connected to the radial stubs. The resonators are described using an LC model, and its Z- and S-parameters are extracted as a function of the LC component. In the proposed filter, cut-off frequency is placed at 1.76 GHz, roll-off rate is higher than 142 dB/GHz, insertion loss is less than 0.42 dB from DC to 1.5 GHz, and rejection is greater than {24 dB from 1.88 to 15.2 GHz. The proposed filter is designed, fabricated, and measured, and the measured values are in good agreement with the EM-simulated results.