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Collision‐avoidance radar‐system antenna for a smart UAV
Author(s) -
Lee HyeonCheol,
Kim InKyu,
Yun TaeYeoul
Publication year - 2005
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.20678
Subject(s) - cassegrain reflector , radiation pattern , microwave , radar , cassegrain antenna , collision , offset (computer science) , collision avoidance , engineering , radiation , antenna (radio) , directional antenna , aerospace engineering , computer science , optics , physics , electrical engineering , periscope antenna , telecommunications , telescope , computer security , programming language
This paper presents the optimization of antennas for the collision‐avoidance radar system of an unmanned aerial vehicle (UAV). Geometric parameters and radiation patterns are compared among horn, parabolic, cassegrain, and offset‐cassegrain antennas. Based on the sidelobe levels of the calculated radiation patterns and sizes, the parabolic antenna shows the best results: a sidelobe of less than −30 dB and gain of 37 dBi with a focal length of 21.3 cm and a diameter of 26 cm. This research is explored for the first time to the authors' knowledge and the should be useful in the UAV. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 44: 498–501, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20678