Design of a fan beam 1×4 array antenna using V-shaped patch element for its use in X-band communication

Abstract

An array antenna is designed and fabricated using four Vshaped patch element for its application in X-band communication. Initially, a two element array is designed by using two V-shaped patch elements where the inset feed dimensions are studied and optimized experimentally. This is followed by the design of a $1 \\times 4$ element array for obtaining a fan beam pattern. Prototypes with different element spacing are fabricated, measurements carried out and results compared. Co- and cross-polar radiation patterns are measured for both the principal planes.