Multi-band, shark fin antenna for v2x communications

A multi-band antenna, comprising:

• a base substrate having opposing upper and lower surfaces;
• a first port for communicating first transmission signals in a first frequency band, wherein the first port is located at a first location in the base substrate;
• a second port for communicating second transmission signals in a second frequency band that is different from the first frequency band, wherein the second port is located at a second location in the base substrate;
• a base conductor integrated with the base substrate;
• a radiating substrate that is transversely aligned with reference to the base substrate, the radiating substrate including:
• first and second opposing major surfaces, wherein the first major surface comprises an insulator and the second major surface comprises a conductor;
• a base edge that is adjacent to the upper surface of the base substrate, wherein the base edge extends between a front corner and a back corner;
• a front edge that extends between the front corner and a top corner;
• a back edge that extends between the back corner and the top corner, wherein the first and second major surfaces are bounded by the base edge, the front edge and the back edge;
• a first conductive feed strip formed on the first major surface, wherein the first feed strip has a vertical extending portion and is galvanically connected to the first port;
• and
• a second conductive feed strip formed on the first major surface, wherein the second feed strip is galvanically connected to the second port,
• wherein the second major surface is capacitively coupled to the first and second feed strips and galvanically connected to the base substrate;
• a first wide-slot formed on the second major surface, wherein the first wide-slot enables the antenna to radiate at the first frequency band as a wide-slot monopole antenna;
• and
• a second wide-slot formed on the second major surface, wherein the second wide-slot extends from the back edge to a location between the first and second ports.