Modification of Multi Band Printed Dipole Antenna for Indoor Base Station of LTE Systems

摘要

Printed dipole antenna has appropriate characteristic as base station antenna on LTE systems due to compact, planar, low cross polarization, easy modification, and compatible structure of array arrangement characteristics. This paper presents the modification of printed dipole to comply with allocated frequency band for LTE in Indonesia. The results show that the printed can be successfully modified into dual band and triple band by adding the radiating element and adjusting the inter element spacing for impedance matching. In addition, the reflector was added behind the antenna to modify the radiation pattern of antenna so that suitable to mount on the room wall or ceiling.