A dipole antenna for modern wireless applications

This paper proposed a dipole antenna with multi-band for modern wireless systems application. The designed antenna consists of a quasi-symmetric dipole with two pairs of coupled strips to excite four resonant modes. Two resonant modes operate at low band for LTE 700 and GSM 850/900 while the other two resonant modes excite at high band for GSM 1800/1900 applications. Because the resonant modes are all excited by λ/2 mode, the radiation patterns have a benefit of omni-direction characteristic. The proposed design also has advantages of planar structure and ease fabrication. Details of the designing mechanism and experimental results are discussed.