UWB four elements antenna array

TitleUWB four elements antenna array
Publication TypeJournal Article
Year of Publication2019
AuthorsAhmed, B. T., J. L. Masa-Campos, and D. Brande-Hernández
JournalMicrowave and Optical Technology Letters
Keywordsantenna array, notch filters, ultra-wideband antennas
AbstractAbstract In this work, a planar UWB four elements antenna array with and without notch filter is designed. The feeding system of the array is an UWB four branch multiple segment power divider/combiner. Each branch has a three segments impedance transformer. Measurements show that the array works well within the band 3.1 to 10.6 with S11 lower than −10 dB. It is shown that the maximum gain varies with the operating frequency having a value of 8 to 12.3 dB and that it is higher than the gain of the single element.