Analysis of Resonance Response Performance of C-Band Antenna Using Parasitic Element

Abstract EN

Analysis of the resonance response improvement of a planar C-band (4–8 GHz) antenna is proposed using parasitic element method.

This parasitic element based method is validated for change in the active and parasitic antenna elements.

A novel dual-band antenna for C-band application covering 5.7 GHz and 7.6 GHz is designed and fabricated.

The antenna is composed of circular parasitic element with unequal microstrip lines at both sides and a rectangular partial ground plane.

A fractional bandwidth of 13.5% has been achieved from 5.5 GHz to 6.3 GHz (WLAN band) for the lower band.

The upper band covers from 7.1 GHz to 8 GHz with a fractional bandwidth of 12%.

A gain of 6.4 dBi is achieved at the lower frequency and 4 dBi is achieved at the upper frequency.

The VSWR of the antenna is less than 2 at the resonance frequency.