نوع مقاله : علمی-پژوهشی
نویسندگان
1 دانشکده برق، دانشگاه جامع امام حسین (ع)، تهران، ایران
2 گروه مخابرات- دانشکده برق - دانشگاه جامع امام حسین (ع)
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
This article presents the design and simulation of a 45-degree polarizer on a broadband monopulse printed circuit antenna in the KU frequency band. Considering the need for a low-profile and lightweight planar structure, an optimized polarizer element was selected. To create 45-degree polarization on the broadband monopulse antenna, parallel lines were implemented on the parallel plates with an angular offset of 11.25 degrees between them. First, the existing monopulse antenna is introduced with its simulation and construction, and then the effects of the polarizer plates on the monopulse simulation characteristics are examined and analyzed. With the polarizer placed on the antenna, no fundamental changes were observed in the monopulse characteristics. The pattern shape of the monopulse array antenna with the polarizer was maintained in the broadband range. The simulation of the final monopulse array structure with 45-degree polarization was carried out using CST software, achieving a 30% bandwidth with an average gain of 23 decibels.
کلیدواژهها [English]
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