Phase shifter, antenna, and electronic apparatus

A phase shifter, comprising:

• a first substrate and a second substrate opposite to each other;
• an adjustable dielectric layer and a plurality of pillar supports, each of which being between the first substrate and the second substrate;
• a first conductive layer on a side of the first substrate close to the adjustable dielectric layer;
• and
• a second conductive layer on a side of the second substrate close to the adjustable dielectric layer, wherein a pattern of the first conductive layer comprises at least one first electrode, a pattern of the second conductive layer comprises at least one second electrode, and an orthographic projection of the at least one first electrode on the first substrate at least partially overlaps an orthographic projection of the at least one second electrode on the first substrate;
• wherein an orthographic projection of each of the plurality of pillar support, which are on the first substrate, on the first substrate and an orthographic projection of the pattern of the first conductive layer on the first substrate do not overlap each other, and the pillar supports of the plurality of pillar supports close to an edge of the pattern of the first conductive layer are equally spaced apart from the edge of the pattern of the first conductive layer.