Phased array antenna system and mobile terminal using same

A phased array antenna system, comprising:

• a first group of antenna unit arrays;
• a second group of antenna unit arrays;
• a beam radiated by the first group of antenna unit arrays covering a first half space;
• a beam radiated by the second group of antenna unit arrays covering a second half space;
• and
• an omnidirectional space constituted by the first half space and the second half space;
• wherein the first group of antenna unit arrays is composed of N antenna units arranged in one row;
• the second group of antenna unit array is composed of N antenna units arranged in one row, and N is an integer greater than 1;
• an operating frequency band of the antenna unit is a millimeter-wave band with a central frequency of 28 GHz;
• a feed connection point is arranged on the antenna unit, and the feed connection point is located on a central axis of the antenna unit, and the feed connection point is located at 0.5 mm -0.9 mm away from the center point of the antenna unit.