05 خرداد 1403
عباس رضايي

عباس رضایی

مرتبه علمی: استادیار
نشانی: دانشگاه صنعتی کرمانشاه، دانشکده مهندسی برق، مهندسی برق (گرایش های الکترونیک و مخابرات)
تحصیلات: دکترای تخصصی / مهندسی برق
تلفن: 083-38305001
دانشکده: دانشکده مهندسی برق

مشخصات پژوهش

عنوان
Novel Ultra-Compact Wide Stopband Microstrip Lowpass-Bandpass Triplexer for 5G Multi-Service Wireless Networks
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
Triplexer, microstrip, compact, 5G, insertion loss, lowpass-bandpass.
پژوهشگران لیلا نوری (نفر اول)، فرید زبیر (نفر دوم)، لویس ننیره (نفر سوم)، عباس رضایی (نفر چهارم)، محمد عبدالحافظ (نفر پنجم)، فواز هزیزی (نفر ششم به بعد)، محمد اکمل چاودهری (نفر ششم به بعد)، ماهر اسد (نفر ششم به بعد)، زبیده یوسف (نفر ششم به بعد)

چکیده

This work presents a very compact microstrip lowpass-bandpass (LP-BP) triplexer, which is designed and analyzed based on a novel structure. Due to its complex design process, this type of triplexer is rarely designed. Compared to the previous LP-BP triplexers it has the most compact size of 0.006 λ2g , whereas an LP-BP triplexer with dimensions smaller than 0.01 λ2g has not been designed yet. This triplexer is designed based on a perfect mathematical method and optimization simultaneously. Its lowpass band has a cut-off frequency of 0.67 GHz, suitable for low-band 5G applications. The resonance frequencies of its bandpass channels are located at 2.15 GHz and 3.19 GHz. These bandpass channels make the proposed triplexer appropriate for 5G mid-band applications. This triplexer can suppress the harmonics from the first up to 8th harmonic. The bandpass channels are flat and wide with two fractional bandwidths (FBW) of 15% and 11.97%. To prove the designing process and its simulation results, the presented novel LP-BP triplexer is fabricated and experimentally measured. The comparison results show that the experimental measurement confirms the simulation results. The close alignment between the measurements and simulation results demonstrates a high level of accuracy of our designing method.