| http://www.w3.org/ns/prov#value | - m can be implemented wherein said antenna is an array antenna, and wherein said array antenna comprises a radiating antenna element; at least one parasitic antenna element; at least one voltage-tunable capacitor connected to said at least one parasitic antenna element; and a controller for applying a voltage to each voltage-tunable capacitor to change the capacitance of each voltage-tunable capaci
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