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In this paper a new reconfigurable metamaterial unit-cell is presented. The unit-cell has two PIN-diodes and operates in the frequency range of 1–4 GHz. Four different configurations can be achieved by switching the diodes that provides a maximum difference of 2 in the value of the unit-cell's refractive index. This unit-cell can be used in advanced reconfigurable antenna applications.
In this letter, a two-sectioned metamaterial medium is designed to provide two different effective refractive indices in each of its parts. This metamaterial is integrated on the substrate in front of a printed dipole antenna to provide a low-profile technique for tilting the antenna beam that operates at the frequency of 60 GHz. Using this technique, a tilt angle of 32 in the E-plane is achieved...
In this paper a reconfigurable dipole antenna at the frequency of 3.33 GHz is presented. This antenna offers a gain enhancement of about 3 dB over a conventional dipole and also provides a reconfigurable pattern in the E-plane. To produce these features, the antenna uses a new reconfigurable metamaterial unit-cell. Three PIN diodes are embedded in the structure of the unit-cell so it can switch between...
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