Ultra-wideband antenna array design for target detection

• Main Authors: Kasi B., Chakrabarty C.K.
• Other Authors: 54417372300
• Format: Article
• Published: 2023
• Subjects: Antenna arrays; Frequency dividing circuits; Microstrip antennas; Voltage dividers; Array elements; Compact size; Constant gain; Feed networks; Measured results; Patch antenna; Peak gain; Side lobes; Simulated results; Ultra-wideband antenna arrays; Wilkinson power dividers; Ultra-wideband (UWB)

In this paper, a four-element microstrip antenna array is presented. The array is composed of Wilkinson power dividers which act as feed network along with Dolph-Chebyshev distribution and four-identical patch antenna elements. The array elements are properly designed to have a compact size and constant gain against frequency. The simulated results show good agreement with the measured results for the fabricated antenna array. Measurement shows that the array has a peak gain of more than 12dBi with side-lobe level of -15 dB at 6 GHz. These characteristics make the antenna array suitable for UWB directional uses.