نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشجوی کارشناسی ارشد، دانشگاه مالک اشتر
2 استادیار، دانشگاه مالک اشتر
چکیده
کلیدواژهها
عنوان مقاله [English]
Millimeter wave systems have a wide frequency band. Reflector antennas are a good choice for use in these sys-
tems, due to the broad frequency coverage, high efficiency and gain. In the present paper parabolic reflector antenna
characteristics and their design principles have been provided. For this purpose, first geometry of the parabolic re-
flector is inspected, and then design process of Cassegrain antenna and its feed have been discussed. Based on it, the
design of a Cassegrain antenna has been done with its feed. Due to the high sensitivity of Cassegrain reflector to the
placing of phase center of the feedhorn antenna at focusing point of the reflector, it has been tried to obtain equal
phase centers at E and H-planes. After the simulation of antenna by CST MWS, the gain of the antenna is obtained
37.27dB. In the current study a broadband Cassegrain system designed and implemented by using designed feed an-
tenna that operate well in 30-40GHz.
کلیدواژهها [English]