TY - JOUR
T1 - Genetic optimization of fractal dipole antenna arrays for compact size and improved impedance performance over scan angle
AU - Mummareddy, Satish
AU - Werner, D. H.
AU - Werner, P. L.
PY - 2002
Y1 - 2002
N2 - The driving-point impedance of an array element is a function of the self-impedance of the element, the mutual impedances from other array elements, and the array excitation currents. As the beam is steered in a phased array, the driving-point impedances of the array elements will vary with scan angle. This presents a challenging problem in the design of practical phased array systems, especially when considering compact array configurations. This paper introduces a novel approach to the design optimization of compact phased arrays. The new technique introduces fractal dipoles as array elements and uses a genetic algorithm to optimize the shape of each individual fractal element (for self-impedance control) as well as the spacing between these elements (for mutual impedance control) in order to obtain compact array configurations with improved driving-point impedance versus scan angle performance.
AB - The driving-point impedance of an array element is a function of the self-impedance of the element, the mutual impedances from other array elements, and the array excitation currents. As the beam is steered in a phased array, the driving-point impedances of the array elements will vary with scan angle. This presents a challenging problem in the design of practical phased array systems, especially when considering compact array configurations. This paper introduces a novel approach to the design optimization of compact phased arrays. The new technique introduces fractal dipoles as array elements and uses a genetic algorithm to optimize the shape of each individual fractal element (for self-impedance control) as well as the spacing between these elements (for mutual impedance control) in order to obtain compact array configurations with improved driving-point impedance versus scan angle performance.
UR - http://www.scopus.com/inward/record.url?scp=0036071007&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036071007&partnerID=8YFLogxK
U2 - 10.1109/APS.2002.1016935
DO - 10.1109/APS.2002.1016935
M3 - Article
AN - SCOPUS:0036071007
SN - 1522-3965
VL - 4
SP - 98
EP - 101
JO - IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
JF - IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
ER -