Super wideband conformal antenna array on cylindrical surface

Abstract

Super wideband microstrip antennae are important for communication applications which involves modulation techniques which require larger bandwidths, such as electromagnetic pulse systems. Conformal versions of super wideband antenna arrays are not explored as that of planar antenna arrays. Hence a conformal super wideband antenna array is proposed in this paper. The bandwidth and average peak gain of unit cell antenna designed are 5-40 GHz and 3.34 dBi. A 1×2 array is designed with average gain of 6.67 dBi and bandwidth 6.87-40 GHz. A 1×3 antenna array is designed. The unit cell antenna is fabricated with simulated return loss in agreement with measured return loss. This paper proposes a super-wideband 1X3 conformal microstrip antenna array which resonates from 4.885-40 GHz with peak gain of 13.54 dBi at 7 GHz. The proposed antenna array is conformed onto a cylindrical structure of radius 150 mm and length 2100 mm and parametric analysis is done by simulation.