Antenna device radio unit and radar

An antenna device comprising:

• a resonance element array having a plurality of resonance elements arranged therein, and having a circuit connected to each of the resonance elements for controlling a resonance frequency of the resonance elements;
• a plurality of primary radiators for radiating an electromagnetic wave for excitation to the resonance element array or for receiving an electromagnetic wave radiated from the resonance element array, each of the plurality of primary radiators being allocated to a respective portion of the plurality of resonance elements;
• and
• a lens or reflector collimator disposed such that the position of the resonance element array is substantially a focus plane,
• wherein the plurality of primary radiators are arranged so that a radiation position to the resonance element array is optimized or a position for receiving the electromagnetic wave radiated from the resonance element array is optimized.

An antenna device comprising:

• a resonance element array having a plurality of resonance elements arranged therein, and having a circuit connected to each of the resonance elements for controlling a resonance frequency of the resonance elements;
• a plurality of primary radiators for radiating an electromagnetic wave for excitation to the resonance element array or for receiving an electromagnetic wave radiated from the resonance element array, each of the plurality of primary radiators being allocated to a respective portion of the plurality of resonance elements;
• and
• a lens or reflector collimator disposed such that the position of the resonance element array is substantially a focus plane,
• wherein the plurality of resonance elements comprise linear conductors extending substantially perpendicular to an arrangement direction thereof and parallel to each other.

An antenna device comprising:

• a resonance element array having a plurality of resonance elements arranged therein, and having a circuit connected to each of the resonance elements for controlling a resonance frequency of the resonance elements;
• a plurality of primary radiators for radiating an electromagnetic wave for excitation to the resonance element array or for receiving an electromagnetic wave radiated from the resonance element array, each of the plurality of primary radiators being allocated to a respective portion of the plurality of resonance elements;
• and
• a lens or reflector collimator disposed such that the position of the resonance element array is substantially a focus plane,
• wherein the plurality of resonance elements comprise linear conductors arranged substantially at a 45 degree angle relative to an arrangement direction thereof and parallel to each other.