Abstract
Antenna array implementation becomes a necessary requirement for millimeter wave (mmW) 5G applications for improving the directivity to overcome the limitations of high attenuation losses at mmW frequencies. In this work, a compact 1X4 linear endfire antenna array has been designed using a full corporate feeding network for operation at 28 GHz frequency. The antenna element in the proposed array is a modified antipodal Vivaldi antenna, which has been designed by incorporating corrugations and metal director to achieve the size reduction and improve the radiation parameters. This compact antenna array has dimensions of 35.3 X 36.6 mm, peak gain of 13.67 dBi, and wide impedance bandwidth in the range of 24.3 GHz to 34 GHz, making it ideal for implementation in 5G cellular applications.
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