Dual-port multi-mode common-aperture spatial scanning antenna and array based on SSPP structure
A space-scanning, dual-port technology, which is applied to antenna arrays, antenna arrays, antennas, etc. that are powered separately, can solve the problems of limited scanning range, single antenna working mode, and limited scanning angle range of antenna arrays, etc., to achieve good coverage and good Effects of the Spatial Scan feature
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Embodiment 1
[0064] Such as figure 1 , 2 , 3, the present embodiment provides a dual-port multimode common-aperture spatial scanning antenna based on SSPP structure, including: two SMA radio frequency connectors 1, two trapezoidal monopoles 2, four symmetrical circular stickers Sheet 3, symmetrical SSPP metal transmission line 7, floor 5, dielectric board 4 and two diamond-shaped metal modulation units 6;
[0065] Two trapezoidal monopoles 2, four symmetrical circular patches 3, and symmetrical SSPP metal transmission lines 7 are all arranged on the upper surface of the dielectric plate 4, and there is no structure on the lower surface of the dielectric plate 4. Two symmetrically etched at both ends of the symmetrical SSPP metal transmission line, four circular patches 3 are symmetrically placed on both sides of the symmetrical SSPP metal transmission line 7, and two diamond-shaped metal modulation units 6 are arranged on the symmetrical SSPP metal transmission line 7, two SMA radio freq...
Embodiment 2
[0075] Such as Image 6 In the schematic diagram of the array structure shown, the antenna elements of Embodiment 1 are formed into a 1×4 array, along the figure 1 in the x-direction. Adjusting the phase difference between the two ports of the antenna unit can realize spatial scanning of the beam of the unit, and at the same time adjust the phase difference between the antenna units, so that the main beam of the array is consistent with the main beam of the unit, and the beam gain and directivity are enhanced.
[0076] Such as Figure 7a~7c The two-dimensional beam scanning diagram of the array shown, the phase difference between the two ports of the antenna element is set to 0°, 90° and 180° respectively, Figure 7d Represents the array two-dimensional beam scanning pattern with phase differences of -180°, -90°, 0°, 90° and 180° between the two ports of the antenna unit, and the pattern of the two ports with phase differences of 180° and -180° overlaps. The phase differenc...
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