Ultra low profile antenna for 2.45 GHz wireless communication

The ultra low profile, conventional base fed F antenna is analyzed numerically and its characteristics are compared with those of the unbalanced fed, ultra low profile inverted L antenna. The design frequency is 2.45 GHz. When the size of conducting plane is 0.17 λ by 0.49 λ and the antenna height is 0.08 λ, the return loss bandwidth less than -10 dB becomes 15.92 % and the directivity is 3.94 dBi. In the numerical analysis, the electromagnetic simulator “WIPL-D” based on the method of moment is used.