Antenna system mounted in vehicle

A vehicle antenna system having an integrated communication module and configured to be disposed on or within a roof structure of a vehicle, comprising:

• a module cover including a top cover and a bottom cover, at least one of the top cover or the bottom cover being made of a dielectric material;
• an antenna printed circuit board (PCB) disposed between the top cover and the bottom cover;
• a first antenna module including a plurality of first antenna elements and configured to perform Multi Input Multi Output (MIMO);
• a second antenna module including one or more of an SDARS antenna, a GNSS antenna, V2X antenna, or a WiFi antenna;
• a connectivity module disposed on the antenna PCB;
• and
• a main PCB coupled to the antenna PCB disposed on an upper portion of the bottom cover and configured to control the connectivity module disposed on the antenna PCB,
• wherein the first antenna module and the second antenna module are electrically connected with the connectivity module disposed on the antenna PCB,
• wherein the plurality of first antenna elements include:
• a first antenna element disposed at a left upper end of the antenna PCB,
• a second antenna element disposed at a right upper end of the antenna PCB,
• a third antenna element disposed at a left lower end of the antenna PCB, and
• a fourth antenna element disposed at a right lower end of the antenna PCB, and
• wherein the third antenna element being positioned leftward of the first antenna element or the fourth antenna element being positioned rightward of the second antenna element.