Liquid crystal phase shifter and fabrication method thereof, liquid crystal antenna and electronic device

A liquid crystal antenna, comprising:

• a first substrate, including a first surface and a first electrode provided on the first surface;
• a second substrate, including a second surface and a second electrode provided on the second surface;
• a liquid crystal layer, provided between the first substrate and the second substrate;
• and
• a radiator portion, provided on the second substrate,
• wherein, the first substrate and the second substrate constitute a tubular structure in which the first substrate and the second substrate are stacked with one of the first substrate and the second substrate being inside the other of the first substrate and the second substrate.

A fabrication method of a liquid crystal phase shifter, comprising:

• providing a first substrate, wherein, a first electrode is formed on a first surface of the first substrate;
• providing a second substrate, wherein, a second electrode is formed on a second surface of the second substrate;
• and
• bonding the first substrate and the second substrate to form a liquid crystal cell of a tubular structure and filling a liquid crystal layer in the liquid crystal cell, wherein, the liquid crystal layer is located between the first electrode and the second electrode.