Steerable phased array antenna

An electronic device comprising:

• radio frequency (RF) circuitry comprising an RF feed;
• a phased array antenna structure comprising:
• a ground plane;
• a non-radiating conductive strip;
• an array of leaky-wave antenna (LWA) cells individually coupled to respective locations on the non-radiating conductive strip and individually coupled to the ground plane through respective vias, wherein the array of LWA cells comprises a first LWA cell and a second LWA cell, wherein:
• the first LWA cell comprises:
• a first tunable component;
• and
• a first conductive patch having a polygonal shape coupled to the RF feed on a first edge of the first conductive patch, coupled to the ground plane through a first via on a second edge of the first conductive patch, and coupled to the first tunable component at a first corner between a third edge and a fourth edge of the first conductive patch;
• the second LWA cell comprises a second conductive patch having a polygonal shape coupled to the ground plane through a second via on a second edge of the second conductive patch and coupled to the first tunable component at a first corner between a first edge and a third edge of the second conductive patch;
• and
• a controller coupled to the non-radiating conductive strip, the controller to generate a control signal to set a voltage value of the first tunable component, wherein the RF circuitry is operable to set, using the control signal, the voltage value of the first tunable component to a first voltage value correlated to a first radiation angle of the phased array antenna structure and apply a first current to the RF feed to cause to the phased array antenna structure to radiate electromagnetic energy at the first radiation angle, wherein the RF circuitry is operable to set, using the control signal, the voltage value of the tunable component to a second voltage value correlated to a second radiation angle of the phased array antenna structure and apply a second current to the RF feed to cause to the phased array antenna structure to radiate electromagnetic energy at the second radiation angle.