Antenna, control method thereof, antenna array and electronic device

A control method for an antenna, wherein the antenna comprises:

• a first dielectric substrate and a second dielectric substrate opposite to each other;
• a first tunable dielectric layer between the first dielectric substrate and the second dielectric substrate;
• a radiation component and at least one first tuning electrode on the first dielectric substrate;
• and
• at least one second tuning electrode and a reference electrode layer on the second dielectric substrate;
• wherein orthographic projections of the radiation component, the at least one first tuning electrode and the at least one second tuning electrode on the first dielectric substrate overlap with an orthographic projection of the reference electrode layer on the first dielectric substrate;
• and
• wherein orthographic projections of each first tuning electrode and a corresponding second tuning electrode on the first dielectric substrate at least partially overlap with each other, to form a tunable capacitor electrically connected to the radiation component;
• and
• the control method comprises:
• applying a first voltage to the radiation component and the at least one first tuning electrode;
• and
• applying a second voltage to the at least one second tuning electrode according to a pre-stored table of a mapping relationship between the first voltage and the second voltage.

An antenna array, comprising a plurality of antennas, each of which comprises:

• a first dielectric substrate and a second dielectric substrate opposite to each other;
• a first tunable dielectric layer between the first dielectric substrate and the second dielectric substrate;
• a radiation component and at least one first tuning electrode on the first dielectric substrate;
• and
• at least one second tuning electrode and a reference electrode layer on the second dielectric substrate;
• wherein orthographic projections of the radiation component, the at least one first tuning electrode and the at least one second tuning electrode on the first dielectric substrate overlap with an orthographic projection of the reference electrode layer on the first dielectric substrate;
• and
• wherein orthographic projections of each first tuning electrode and a corresponding second tuning electrode on the first dielectric substrate at least partially overlap with each other, to form a tunable capacitor electrically connected to the radiation component.