Vol. 22

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2011-05-30

Steerable Antenna Using Algorithm Based on Downhill Simplex Method

By Noorsaliza Abdullah and Yoshihiko Kuwahara
Progress In Electromagnetics Research C, Vol. 22, 23-34, 2011
doi:10.2528/PIERC11042712

Abstract

Electronically steerable passive array radiator (ESPAR) antennas are expected to gain prominence in the field of wireless communication, because they can be steered toward a desired signal and they can eliminate interference; in addition, they have a very simple architecture that has significantly low power consumption and are inexpensive to manufacture. In this paper, we proposed an ESPAR antenna that has fastest convergence time. The downhill simplex method is used to maximize the correlation coefficient between the received signal and the reference signal. The simulation results indicate that this antenna can be steered toward the desired signal if one signal is used; in addition, it can eliminate interference if two signals, namely, the desired signal and the delayed signal are used by automatically varying the reactance values.

Citation


Noorsaliza Abdullah and Yoshihiko Kuwahara, "Steerable Antenna Using Algorithm Based on Downhill Simplex Method," Progress In Electromagnetics Research C, Vol. 22, 23-34, 2011.
doi:10.2528/PIERC11042712
http://www.jpier.org/PIERC/pier.php?paper=11042712

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