Array antenna control device and array antenna device

An array antenna apparatus comprising:

• one radiating element;
• two parasitic elements between which said radiating element is provided, and said two parasitic elements being provided linearly together with the radiating element;
• and
• two variable reactance elements connected to said parasitic elements, respectively,
• wherein said array antenna apparatus changes reactances which are set to said respective variable reactance elements, so that the parasitic elements operate as waveguides or reflectors, thereby changing a directivity characteristic of said array antenna apparatus,
• wherein said array antenna apparatus further comprises:
• a dielectric substrate including first and second surface parallel to each other;
• a grounding electrical conductor formed on a predetermined first region on the second surface of said dielectric substrate;
• and
• three strip electrical conductors formed on the first surface of said dielectric substrate, said three strip electrical conductors being formed to have a predetermined length so as to protrude from a region opposite to the first region, and said three strip electrical conductors being provided at a predetermined interval, and operating as the radiating element and the two parasitic elements, respectively.