a1 Department of Electronics and Communication Engineering, Guru Nanak Dev Engineering College, Ludhiana, Punjab, India.
a2 Department of Electronics and Communication Engineering, University College of Engineering, P.U. Patiala, Punjab, India.
a3 Surya School of Engg. and Technology, Patiala, Punjab, India.
This paper presents the design optimization of circular antenna arrays of isotropic radiators using simulated annealing. The problem has been formulated to achieve a desired value of sidelobe level and a minimum possible value of beamwidth. This is accomplished by jointly optimizing the excitation amplitude and spacing between elements. Simulation examples have been given and comparison has been carried out with particle swarm optimization method.
(Received April 09 2009)
(Revised September 01 2009)
(Online publication December 09 2009)