A Reconfigurable Ultra-Wideband Notch Antenna for Cognitive Radio Optical Control
A notch antenna and ultra-broadband technology, which is applied in the direction of antenna grounding switch structure connection, radiation element structure, etc., can solve the problems of antenna electromagnetic radiation performance, increase antenna difficulty, unfavorable miniaturization, etc.
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[0032] Such as figure 1 , figure 2 As shown, a reconfigurable ultra-wideband trap antenna for cognitive radio light control, including FR4 dielectric substrate 1, antenna radiation unit, symmetrical trapezoidal floor 3A-3B, coplanar waveguide feeder 4 and curved symmetrical slot 5, There are also first, second, third, fourth and fifth photo-silicon switches 6A-6E, all of which are located on the same side of the FR4 dielectric substrate 1, and the antenna radiation unit includes a U-shaped monopole Antenna 2, the U-shaped monopole antenna 2 is connected to the coplanar waveguide feeder 4, the coplanar waveguide feeder 4 is located in the middle of the symmetrical trapezoidal floor, and the curved symmetrical slot 5 is located at the U-shaped monopole antenna Inside, the curved symmetrical slot 5 , the U-shaped monopole antenna 2 and the symmetrical trapezoidal floor are symmetrical about the coplanar waveguide feeder 4 .
[0033] The length of the FR4 dielectric substrate 1...
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