Design of Dual-Linearly Polarized Patch Antenna at Millimetrewaves

Phased array antenna capable of providing wider scanning range of beam radiation. The conventional phased array antenna mostly covered a single polarization of beam radiation. Therefore, by improving the phased array antenna design by implementing dual polarization will enhance the capacity of beam radiation to radiate at wide angular angle. A dual linearly polarized phased array antenna slanted at ±45° has been designed to operate at frequency of 28 GHz by using CST tool. Based on the simulation performance, the reflection coefficient (S11) and radiation pattern of both single and array antenna shows a good performance. The S11 value for both single and array antenna are -11.36 dB, and -20.17 dB, respectively. The gain of single slanted -45°, single slanted +45°, and 1x2 ±45° array patch antenna are 7.48 dB, 7.47 dB, and 7.08 dB.