A dual U slot conformai antenna for Wi-Fi application

A novel planar and conformal antenna with dual U slot are proposed at 2.41GHz and 2.45GHz respectively. The antenna is designed on RT Duroid 5880 substrate of permittivity 2.2 and thickness of 0.787mm with microstrip inset feed. The proposed planar antenna also has bandwidth of 24.9MHz and has maximum gain of 4.2dB. The planar antenna is transformed to conformal cylindrical of 25mm, 45mm and 60mm radii. The gain values are decreased from 5.9dB to 2.81dB but the bandwidth values varies from 23MHz to 22.1MHz by changing the radius of curvature from 60mm to 25mm. The planar and conformal antenna on different radii has a single band at 2.41GHz and 2.45GHz respectively which is suitable for Wi-Fi application.