DUAL POLARIZED MICROSTRIP PATCH ANTENNA FOR KU-BAND APPLICATION

A dual polarized microstrip patch antenna is proposed for Ku-band applications. The corner chopped square patch with four bent slots is adopted in this design. The antenna has a compact structure and the total size is 15 mm x 15 mm. The result shows that the impedance bandwidth (VSWR <= 2) of the proposed antenna is 950 MHz (7.76%). The antenna with reduced size is also able to achieve the stable radiation performance with a maximum gain of 7.6 dBi in the operating band of 11.76 GHz to 12.71 GHz and the gain variation is about 0.8 dBi. The present design provides a maximum of -26 dB isolation level between the two ports and a stable low cross polarization level for both E- and H-planes. Details of the proposed antenna design and results are presented and discussed. The patch shows a high matching level in Ku-band and isolation elements that makes it suitable for wireless and satellite communication.