Design of Triple-Band Planar Dipole Antenna

A new low-profile planar symmetric dipole antenna is proposed for triple-band wireless communication application. Three symmetric arms are etched on the metallic layer of a single sided printed circuit board to form the planar dipole antenna. The dimensions of symmetric arms are changed to design and fabricate the antenna which can be operated at 2.45/3.5/5.8 GHz successfully. We use IE3D software to design this triple-band planar 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 proposed antenna with the small volume of 40.6mm×13mm×0.6mm has been fabricated and this antenna can be used in WLAN frequency band.

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