Phase shifter and manufacturing method thereof, liquid crystal antenna and communication device

A manufacturing method for a phase shifter, the method comprising:

• forming a first substrate and a second substrate;
• and
• oppositely arranging the first substrate and the second substrate to form a sealing frame structure in peripheral regions of the first substrate and the second substrate for fixing relative positions of the two substrates to form a gap for accommodating a liquid crystal material,
• wherein the sealing frame structure comprises a support, and sealant for bonding to the first substrate, on the support.

A liquid crystal antenna comprising at least one phase shifter, wherein

• each phase shifter comprises:
• a first substrate and a second substrate which are oppositely arranged;
• and
• a sealing frame structure located in peripheral regions of the first substrate and the second substrate for fixing relative positions of the two substrates to form a gap for accommodating a liquid crystal material,
• wherein the sealing frame structure comprises a support, and sealant for bonding to the first substrate, on the support.