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Microstrip planar array; radiation properties; plasma

The radiation properties of 2 X 2 element planar array of equilateral triangular patch microstrip antenna in plasma medium are studied. The array factor and far-zone EM-mode and P-mode radiation fields of the array geometry are derived using vector wave function techniques and pattern multiplication approaches. The total field patterns and various characteristics of pattern such as half power beam width (HPBW), first null beam width (FNBW) and direction of maximum radiation are computed for two different values of progressive phase excitation difference between the elements. The results of this array geometry are obtained both in plasma medium and in free space and compared with those of single element equilateral triangular patch microstrip antenna.

K K Verma¹ K R Soni¹

1. Microwave Laboratory, Department of Physics, Malaviya National Institute of Technology, Jaipur - 302 017, India

Published

January 2005

Manuscript received

25 February 2004

Manuscript revised

14 July 2004

Accepted

27 August 2004