Low Cross-Polarization Broadband Microstrip Patch Antenna

In this paper, a new design technique for enhancing gain and low cross-polarization that improves the performance of a conventional microstrip patch antenna is proposed. This paper presents a novel wideband probe fed inverted multiple slot microstrip patch antenna. The design adopts contemporary techniques; probe feeding, inverted patch structure and stacked EH-shaped slotted patch. In addition to the easy feeding, the proposed structure possesses the advantages of being wide bandwidth, high gain and the low cross-polarization level. The patch element has the peak gain 11.2 dBi and the cross-polarization is lower than 40 dB within the impedance bandwidth.