Ferroelectric antenna and method for tuning same

A method for frequency tuning a single-band wireless communications antenna, the method comprising:

• providing a single-radiator proximate to a dielectric with ferroelectric material;
• applying a voltage to the ferroelectric material;
• in response to the applying voltage, varying the dielectric constant of the ferroelectric material;
• and,
• in response to varying the dielectric constant of the ferroelectric material, modifying the resonant frequency of the radiator.

An single-band antenna with a selectable operating frequency, the antenna comprising:

• a single-radiator;
• a dielectric with ferroelectric material proximate to the radiator having a variable dielectric constant;
• and,
• wherein the radiator is resonant at a frequency responsive to the dielectric constant of the ferroelectric material.

A single-band patch antenna with a selectable operating frequency, the patch antenna comprising:

• a counterpoise;
• a dielectric with ferroelectric material overlying the counterpoise, the dielectric having a varying dielectric constant responsive to a voltage applied to the ferroelectric material;
• and,
• at least one radiator overlying the dielectric having a resonant frequency responsive to the dielectric constant.