Phase shifter, method for manufacturing same, and electronic device

A phase shifter, comprising:

• a first substrate and a second substrate that are oppositely arranged;
• a plurality of phase shifting units arranged in an array between the first substrate and the second substrate;
• and
• one or more heat conduction structures arranged between the first substrate and the second substrate;
• wherein orthographic projections of the one or more heat conduction structures and orthographic projections of the plurality of phase shifting units on a same substrate do not overlap each other.