An ultra-wideband monopole antenna (10) for 5G application is disclosed comprising a first quarter wavelength conductor (1) and a second quarter wavelength conductor (2), for transmitting and/or receiving electromagnetic waves. A flat portion (1a) of the first quarter wavelength conductor (1) and a flat portion (2a) of the second quarter wavelength conductor (2) are preferably arranged and located perpendicular and intersecting to each other. Two curved wings (1b, 1c) of the first quarter wavelength conductor (1) and two curved wings (2b, 2c) of the second quarter wavelength conductor (2) are preferably arranged and located concentrically and having a same center. The first and second quarter wavelength conductors (1, 2) are joined to deliver ultra wideband frequency in the range of 600-960MHz and 1710-6000MHz.
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