NDLI: Wideband Reflectarray Using Compact Coupled Element and Rectifying Antenna Combined with Reflectarray

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Wideband Reflectarray Using Compact Coupled Element and Rectifying Antenna Combined with Reflectarray

Content Provider	Semantic Scholar
Author	Oh, Seong Won
Copyright Year	2012
Abstract	Wideband Reflectarray Using Compact Coupled Element and Rectifying Antenna Combined with Reflectarray. (August 2011) Seong Won Oh, B.S., Republic of Korea Naval Academy; B.S., Yonsei University; M.S., Pohang University of Science and Technology Chair of Advisory Committee: Dr. Kai Chang The reflectarray has been considered as a suitable candidate to replace the conventional parabolic reflectors because of its high-gain, low profile, and beam reconfiguration capability. Narrow bandwidth of the reflectarray is the main obstacle for the various uses of the reflectarray. The wide band element with a large phase variation range and a linear phase response is one of the solutions to increase the narrow bandwidth of the reflectarray. Several elements with a large phase range and a linear response have been developed, but their configurations are complex. Simple methods have been investigated in this dissertation to develop wide band elements. A microstrip ring and slot element with a large phase range is introduced and modified for a better linear response. A coupled element with a linear response has been developed. A method is proposed to design a two-layer reflectarray with multi-resonant elements of various sizes for wideband operation. The element dimensions are adjusted by Particle Swarm Optimization routine to achieve the appropriate phase distribution for
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://oaktrust.library.tamu.edu/bitstream/handle/1969.1/ETD-TAMU-2011-08-10070/OH-DISSERTATION.pdf?isAllowed=y&sequence=2
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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