A Broadband Folded Reflect Array Antenna
A reflect array antenna, broadband technology, applied in slot antennas, antenna unit combinations with different polarization directions, circuits, etc., can solve no more than 10%, limit high-performance system applications, narrow-band characteristics have no effective solution, etc. problem, to achieve the effect of low cross-polarization, low loss and compact structure
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[0031] figure 1 This is the overall side sectional view of the folded reflectarray antenna in this embodiment, which is composed of an initial feed horn 101 , a polarization selection grid 104 and a main array 103 composed of a large number of elements. The polarization selection grid plate 104 is a dielectric plate 105 printed with a plurality of parallel dipole microstrip units 106, the dielectric constant of the dielectric plate is 2.65, and the thickness is 6mm. The center lateral distance of the strip unit is Lj=1.6mm, and the width of a single dipole microstrip unit is wj=1mm. The polarization selection grid 104 can totally reflect the electric field parallel to the dipole and completely transmit the electric field perpendicular to it. The working principle of the antenna can be explained as follows: the polarization direction of the electric field radiated by the horn 101 is parallel to the dipole array, and is reflected onto the array surface 103. By reasonably contro...
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