A Planar Four-Element UWB Antenna Array with Stripline Feeding Network

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Abstract

This paper proposes a four-element ultrawideband (UWB) planar antenna array with el-liptical-shaped radiators and a stripline excitation network designed for the 6–8.5 GHz UWB frequency band allowed in Europe by the European Commission. The designed antenna array has a symmetrical structure in which the radiators are placed along one line in the central conducting layer, arranged between two layers of a dielectric. Radiating elements are fed by the stripline excitation network that provides uniform power distribution. The dimensions of the elliptical radia-tors’ axes are 14 mm × 16 mm. Two variants of array are proposed. The distance between the radi-ators’ centers is L = 19 mm for a shorter variant and L = 24 mm for a longer one. The presented antenna array structures have a size of 81 mm × 41 mm and 96 mm × 41 mm. These arrays present a measured gain of 6.4–10.6 dBi for the shorter variant and 8.5–10.8 dBi for the longer one and a fair impedance matching. The measured |S11| is less than −8.7 dB and −9.7 dB for the shorter and longer corresponding variants.

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APA

Garbaruk, M. (2022). A Planar Four-Element UWB Antenna Array with Stripline Feeding Network. Electronics (Switzerland), 11(3). https://doi.org/10.3390/electronics11030469

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