NDLI: A compact ultra-wideband self-complementary antenna with optimal topology and substrate

Content Provider	IEEE Xplore Digital Library
Author	Mosallaei, H. Sarabandi, K.
Copyright Year	2002
Description	Author affiliation: Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA (Mosallaei, H.; Sarabandi, K.)
Abstract	The focus in this paper is to design a compact ultra-wideband self-complementary antenna (SCA) optimized for bandwidth constrained by size. The concept of frequency independent self-complementary geometries is applied to achieve the highest bandwidth possible, and a genetic algorithm (GA) optimization method is used to provide the optimal planar antenna topology and substrate design in an available finite space. An FDTD technique is used to fully analyze the complex antenna structures. It is demonstrated that a GA-optimized SCA can provide a wide bandwidth ratio of about 1:5 which occupies an area as small as /spl lambda//4/spl times//spl lambda//4 at the lowest frequency. An equally spaced alternate-leaves SCA on an optimized meta-substrate is also proposed that provides ultra-wideband bandwidth characteristics (bandwidth ratio 1:8) with as small dimensions as /spl lambda//3/spl times//spl lambda//3.
Sponsorship	Univ. of California, Lawrence Livermore Nat. Lab. Northrop Grumman NSF ITT Industries ANSOFT
Starting Page	1859
Ending Page	1862
File Size	264340
Page Count	4
File Format	PDF
ISBN	0780383028
DOI	10.1109/APS.2004.1330563
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-06-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ultra wideband technology Ultra wideband antennas Topology Bandwidth Frequency Constraint optimization Design optimization Geometry Genetic algorithms Optimization methods
Content Type	Text
Resource Type	Article

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