In this paper, a compact, flexible Vivaldi antenna is designed, and an array of nine identical antennas type used as microwave breast imaging model to detect cancerous tumors in the multilayers phantom presented paper. The nine-antenna measure backscattering signal phantom, where one acts transmitter other eight act receivers scattered signals. Then, second receivers, so on till we have gone th...

This paper presents a miniaturized dual-polarized Multiple Input Output (MIMO) antenna with high isolation. The meets the constraints of sub-6 GHz 5G and smartphones’ X-band communications. A vertically polarized modified antipodal Vivaldi horizontally spiral are designed integrated, then their performance is investigated. Three frequency bands 3.8 GHz, 5.2 8.0 considered, proposed studied. Hig...

The non-standalone 5G antenna wireless communication standard and devices operating under Wi-Fi 5, 6, 6E operate at the 3 GHz frequency bands above. With increasing demand for these technologies, it is crucial to test them rapidly economically commercial usage. This paper presents a dual-polarized Vivaldi over-the-air (OTA) measurement of used in 3–7 band. dual-polarization performance realized...

In this article, a printed series fed tri-slot coplanar Vivaldi antenna is studied and investigated for RADAR application. The consists of three exponentially tapered slots excited by single microstrip line. are simultaneously with radial stub on the feed line impedance matching. proposed covers frequency 7.8-11.8 GHz at −10 dB bandwidth. gain varies from 7.5 lowest operating increases to aroun...