Network antennas with enhanced scanning.

2005 
An antenna system comprising a configuraci6n (600a, 600c; 620a, 620c) of alimentaci6n and a network (50) antenna, comprising: a plane (53) ground and a spatially extended colecci6n of at least two elements (50a , 50b, 50c) antenna collinearly arranged along an axis (OP3) which is parallel to said plane (53) of ground and able to be excited and balanced at least partially and being excited and unbalanced at least partially; wherein each of said antenna elements has: - a first radiating element (54aa, 54ca) and a first port (52aa, 52ca) connected together, and a second radiating element (54ab, 54cb) and a second port (52ab, 52cb) connected together, and wherein the first and second ports (52aa, 52ab; 52ca, 52cb) are connected to the configuraci6n (600a, 600c; 620a, 620c) of alimentaci6n where the radiating elements (54aa, 54ab; 54ca , 54cb) are arranged in pairs along a straight line (L2) parallel to said axis (OP3) and adjacent and parallel to each other, to extend at least one quarter wavelength (E2) perpendicularly from this plane ( 53) ground, and - a radiant configuraci6n (51aa, 51ab; 51ca, 51cb) connected to said first and second radiating elements (54aa, 54ab; 54ca, 54cb) to extend along the axis (OP3) in opposite directions, and at least a quarter wavelength (E1), respectively, above and parallel to said plane (53) of tie rra wherein the configuraci6n (600a, 600c; 620a, 620c) of alimentaci6n is connected to first and second ports (52aa, 52ab; 52ca, 52cb) of each element (50a, 50c) antenna, and is arranged to vary the phase difference
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