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
Design of a novel microstrip four‑channel diplexer for multi‑channel telecommunication systems
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
Microstrip, Four-channel diplexer, Insertion loss, Wireless
پژوهشگران عباس رضایی (نفر اول)، لیلا نوری (نفر دوم)، مهد هیزل جمالدین (نفر سوم)

چکیده

This paper presents a novel microstrip quad-channel diplexer. The introduced diplexer operates at close resonance frequencies of 1.68 GHz, 1.9 GHz, 3.9 GHz and 4.43 GHz for multi-service wireless applications. The frequency responses of S21 and S31 are sharp at the edges of all passbands. To improve the stopband properties, several transmission zeros are created. Also, the low insertion losses of 0.68 dB, 0.57 dB, 0.71 dB, and 0.5 dB are obtained at the resonance frequencies. The proposed diplexer has a new structure with a compact size of 0.051 × λg 2. To verify the design method and simulation results, the proposed structure is fabricated and measured. There is a good agreement between the simulation and measurement results.