Title :
An adaptive antenna using genetic algorithm
Author :
Laohapensaeng, C. ; Free, C.
Author_Institution :
RCEW Res. Group, Mahanakorn Univ. of Technol., Bangkok, Thailand
Abstract :
This article simplifies the complexity of an adaptive antenna by employing the genetic algorithm. The system requires only the error signal and the phase-shifters in the discrete value to form an antenna pattern. An adaptive antenna with two elements and sixteen discrete steps of phase shifter is used. The instantaneous sample of an error signal is used as the cost function, which is minimized by using the genetic algorithm. Numerical results show that this antenna can improve signal to noise ratio in excess of 15 dB.
Keywords :
antenna radiation patterns; genetic algorithms; numerical analysis; phase shifters; adaptive antenna; antenna pattern; cost function; error signal; genetic algorithm; phase shifter; phase-shifters; signal to noise ratio improvement; Adaptive arrays; Calibration; Cost function; Directive antennas; Genetic algorithms; Gradient methods; Microprocessors; Phase shifters; Signal to noise ratio; Tellurium;
Conference_Titel :
Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2005. MAPE 2005. IEEE International Symposium on
Print_ISBN :
0-7803-9128-4
DOI :
10.1109/MAPE.2005.1617853
