A three-dimensional inverted-F antenna, 3D-IFA, element oriented with respect to mutually perpendicular X-, Y-, and Z-axes, the 3D-IFA element comprising: a coupling section that is electrically connected to a ground plane , that extends in the XY plane, through a short point and electrically connected to a communication line through a feed point , the coupling section extending along a section plane (CP) that intersects the short point and the feed point , the coupling section extending away from the short and feed points along the Z-axis; a first antenna arm having first and second elevated edges and opposite first and second broad sides wherein the first and second broad sides are oriented perpendicular to the ground plane, and the first antenna arm extending lengthwise from the coupling section along an XY plane, wherein the first antenna arm follows an arm path along the XY plane as the first antenna arm extends from the coupling section to a distal edge of the first antenna arm , the arm path being non-linear along the XY plane, wherein at least a portion of the arm path extends away from the section plane (CP), and a second antenna arm having first and second elevated edges and opposite first and second broad sides wherein the first and second broad sides are oriented perpendicular to the ground plane , and the second antenna arm extending from the coupling section along the XY plane, the first and second antenna arms project away from the coupling section in different directions that are perpendicular to each other, and the first antenna arm enabling resonance in relatively lower bands and the length of the second antenna arm being configured for communicating in a relatively higher band. a coupling section that is electrically connected to a ground plane , that extends in the XY plane, through a short point and electrically connected to a communication line through a feed point , the coupling section extending along a section plane (CP) that intersects the short point and the feed point , the coupling section extending away from the short and feed points along the Z-axis; a first antenna arm having first and second elevated edges and opposite first and second broad sides wherein the first and second broad sides are oriented perpendicular to the ground plane, and the first antenna arm extending lengthwise from the coupling section along an XY plane, wherein the first antenna arm follows an arm path along the XY plane as the first antenna arm extends from the coupling section to a distal edge of the first antenna arm , the arm path being non-linear along the XY plane, wherein at least a portion of the arm path extends away from the section plane (CP), and a second antenna arm having first and second elevated edges and opposite first and second broad sides wherein the first and second broad sides are oriented perpendicular to the ground plane , and the second antenna arm extending from the coupling section along the XY plane, the first and second antenna arms project away from the coupling section in different directions that are perpendicular to each other, and the first antenna arm enabling resonance in relatively lower bands and the length of the second antenna arm being configured for communicating in a relatively higher band. <EOS>