Design of Triple Symmetric Arms Dipole Antenna for 900/1800/2450 MHz Applications

In this study, low-profile planar triple symmetric arms dipole antenna is proposed for wireless communication applications. Three symmetric arms are etched on the metallic layer of a single sided printed circuit board to form the planar dipole antenna. The size parameters of symmetric arms are changed to design and fabricate the antenna which can be operated at 900/1800/2450 MHz successfully. We use IE3D software to design antenna and choose the better parameters to manufacture the proposed antenna. The influences of dimension parameter of the proposed antenna on the resonant frequency and impedance bandwidth are described. The peak gains of the fabricated antenna are 4.96dBi, 3.58dBi and 4.68dBi at 900MHz, 1800MHz and 2450MHz, respectively. It can be used in GSM 900/1800MHz and RFID 900/2450MHz frequency bands.