Abstract
A novel, single layer patch antenna array based on 1 × 4 elements having a compact size, high gain and with low design complexity is presented. A single patch is designed and to enhance the performance, two distinct arrangements of arrays are proposed and analyzed. To reduce the coupling between the antenna array elements, an I-shaped slot is inserted in the ground. Parasitic metallic strips are employed to increase the peak gain. The proposed antenna array has a compact size of 3.6 × 3.6 cm2, Rogers RT5880 is used as a substrate with a thickness of 0.508 mm. The design achieves an operational bandwidth of 2.06 GHz with a peak gain of 15.07 dBi. The maximum radiation efficiency of 91.9% is obtained at 28.5 GHz. The proposed array-2 is then fabricated and measured. Various parameters such as reflection coefficient, gain, radiation efficiency, Voltage Standing Wave Ratio (VSWR), surface currents and radiation patterns for E and H-fields are investigated.
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