Title :
Design of multiband microstrip antennas using a genetic algorithm
Author :
Choo, H. ; Ling, H.
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas Univ., Austin, TX, USA
Abstract :
A genetic algorithm (GA) is used to design patch shapes of microstrip antennas for multiband operations. For dual-band operation, the optimized patches show that arbitrary frequency spacing ranging from 1:1.1 to 1:2 can be achieved. Tri-band and quad-band microstrip shapes are also generated and the resulting designs show good operations at the designated frequencies. All results were verified by laboratory measurements on an FR-4 substrate.
Keywords :
UHF antennas; antenna theory; genetic algorithms; microstrip antennas; multifrequency antennas; 0.9 to 2.45 GHz; FR-4 substrate; dual-band operation; genetic algorithm; multiband microstrip antennas; multiband operations; multifrequency antennas; patch shape design; quad-band microstrip shapes; tri-band microstrip shapes; Algorithm design and analysis; Antenna measurements; Biological cells; Dual band; Frequency; Genetic algorithms; Microstrip antennas; Multifrequency antennas; Shape; Transmission line matrix methods;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2002.803144
