Design of a stacked microstrip patch antenna for X-band communication

A small size microstrip stacked patch antenna along with a slot in ground plane, fed through microstrip inset feeding for X band applications is being proposed in this paper. Two substrates, FR4 and Rogers RT/duroid 5880 with a dielectric constant of 4.4 and 2.2 respectively with a gap of 1.5mm are introduced. Overall substrate dimension is 35mm × 30mm × 1.6mm. The simulated results show that the bandwidth obtained is 9.42–11.54GHz with a gain of 7.62 dB. Throughout this entire region, the proposed antenna provides S 11 < −10 dB. The antenna which is proposed in the paper, is further presented and discussed in detail.