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Resistor Loaded EBG Surfaces for Slot Antenna Design
College of Electronic Science and Engineering, National University of Defense Technology, Changsha, China
College of Electronic Science and Engineering, National University of Defense Technology, Changsha, China
- 1 College of Electronic Science and Engineering, National University of Defense Technology, Changsha, China
- 2 College of Electronic Science and Engineering, National University of Defense Technology, Changsha, China
Journal of Electromagnetic Analysis and Applications·Volume 05 (2013)·Pages 288–293·Published 9 July 2013·DOI10.4236/jemaa.2013.57045
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Abstract
We present a resistor loaded EBG surface (REBG) for antenna design. Specifically, lumped resistors are embedded be tween periodic metal patches of mushroom like EBG structures. Surface wave propagation along the REBG surface is analyzed as a periodically loaded transmission line model and low transmission bandgap is identified and experimen tally verified. The reflection properties of REBG surface to the incident electromagnetic waves are also studied. Slot antenna is placed within the REBG surface. The REBG surface is used to suppress surface waves across the antenna aperture, resulting in radiation performance improvement. Concurrently, the REBG surface can also absorb electro magnetic energy to reduce antenna radar cross section (RCS).
KeywordsEBGAntennaRCS
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