Title :
Novel dual frequency antenna with same beam width generated by GA-ICT using improved objective function
Author :
Maruyama, T. ; Hori, T.
Author_Institution :
Nippon Telegraph & Telephone Corp., Kanagawa, Japan
Abstract :
This paper adopts the genetic algorithm-improved circuit theory (GA-ICT) to satisfy the given desired conditions without a basic structure or restriction of the number of elements in two different frequencies and to generate the optimum antenna for downsizing and reducing the number of elements by a completely deductive method. The GA-ICT results show that the new antenna configuration has an array length of 0.28/spl lambda/, and 14 elements. The antenna artificially generated by GA-ICT using a completely deductive method is a novel dual frequency Yagi Uda antenna and has a mechanism different to previous dual frequency comer reflector antennas designed by inductive methods.
Keywords :
Yagi antenna arrays; genetic algorithms; multifrequency antennas; optimisation; GA-ICT; Yagi Uda antenna; array length; deductive method; downsizing; dual frequency antenna; element reduction; genetic algorithm-improved circuit theory; optimum antenna; Algorithm design and analysis; Aperture antennas; Base stations; Circuits; Frequency; Genetic algorithms; Optimization methods; Telegraphy; Telephony; Wireless LAN;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2001. IEEE
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-7070-8
DOI :
10.1109/APS.2001.959554
