A single feed planar uwb antenna with stopband in 5GHz

Broadband planar antennas are useful for mobile communications. The UWB systems are worried about interference in the 5GHz band assigned for IEEE 802.11a. In this paper, a single feed planar UWB antenna with a rectangular loop parasitic element is proposed in order to make a stopband in the 5GHz band and is analyzed by using the FDTD method. The characteristics are shown in figures as parameters of position and size of a rectangular loop parasitic element. This result will apply to development of broadband planar antenna with stopband for mobile communications.