Liquid crystal antenna array and communication device

A liquid crystal antenna array, comprising a plurality of antenna structures arranged in an array, wherein each of the plurality of antenna structure comprises:

• a phase shifter layer, comprising a full phase adjustable phase shifter, a power division structure and at least one adjustable phase shifter;
• a radiation patch;
• and
• a first coupling layer,
• wherein the power division structure comprises an input end, a first output end and a second output end, an output end of the full phase adjustable phase shifter is coupled with the input end of the power division structure, the at least one adjustable phase shifter comprises a first adjustable phase shifter, the first adjustable phase shifter is coupled with the first output end of the power division structure,
• the first coupling layer comprises a first coupling structure and a second coupling structure, the first coupling structure couples an output end of the first adjustable phase shifter with the radiation patch, and the second coupling structure couples an electromagnetic wave output from the second output end of the power division structure to the radiation patch, a first connection line between a center of the first coupling structure and a center of the radiation patch and a second connection line between a center of the second coupling structure and the center of the radiation patch are perpendicular to each other,
• a phase adjustment range of the first adjustable phase shifter is smaller than a phase adjustment range of the full phase adjustable phase shifter, an area of the first adjustable phase shifter is smaller than an area of the full phase adjustable phase shifter.