Dual-polarized filtering patch antenna with high selective gain
A high-selectivity, patch antenna technology, applied in the field of communication antennas, can solve the problems that the dual-polarization structure is not easy to realize, and achieve good frequency selection characteristics and economic applicability, light weight, and simple structure.
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Embodiment 1
[0029] see Figure 1 to Figure 6 As shown, this embodiment provides a dual-polarized filter patch antenna with low frequency and high selective gain, which includes a metal reflective floor 1, a first dielectric substrate 4, a second dielectric substrate 7 and a first dielectric substrate arranged in sequence from bottom to top. Metal post 201, second metal post 202, first metal feed sheet 301 and second metal feed sheet 302;
[0030] A preset distance is maintained between the metal reflective floor 1 and the first dielectric substrate 4 to form a first air layer 10, the upper surface of the first dielectric substrate 4 is provided with a first copper clad layer 5, and the first The copper clad layer 5 is provided with a first rectangular patch 6, the first rectangular patch 6 is used as the main radiation source, and a preset distance is maintained between the first dielectric substrate 4 and the second dielectric substrate 7 to form a second air Layer 11, the upper surface...
Embodiment 2
[0036]The difference from Embodiment 1 is that this embodiment provides a dual-polarized filter patch antenna with high frequency and high selective gain, in which the heights of the first metal post 201 and the second metal post 202 are both 5 mm; the thickness of the first air layer 10 is 6 millimeters, and the thickness of the second air layer 11 is 8 millimeters; the first metal feed sheet 301 and the second metal feed sheet 302 are rectangular metal feed sheets, two metal feed sheets The length of the feed sheet is 17 mm, and the width is 8 mm; the length and width of the first rectangular patch 6 are 116 mm; the lengths of the four slot lines 601, 602, 603, 604 on the first rectangular patch 6 are 42 mm and a width of 3 mm; the length and width of the second rectangular patch 9 are 114 mm; the length of the cross-shaped groove line 901 on the second rectangular patch 9 is 57 mm and the width is 2 mm.
[0037] see Figure 10 Shown is the reflection coefficient S of the f...
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