Wide-beam antenna unit and phased array
A technology of wide-beam antenna and phased array, which is applied in antenna array, separately powered antenna array, antenna and other directions, can solve problems such as difficult decoupling, improve the scanning environment, reduce cost and weight, and reduce size
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Embodiment 1
[0042] In the first embodiment, the X-axis direction of the dielectric substrate is the vertical direction, the Y-axis direction is the horizontal direction, and the origin is the center point of the dielectric substrate.
[0043] like figure 1 2(a) and 2(b) show a miniaturized wide-beam antenna unit based on equivalent magnetic currents, including a coaxial feed structure, an upper dielectric substrate 2 and a lower dielectric substrate 1, two layers of dielectric substrates pasted The lower surface of the lower dielectric substrate 1 is provided with a metal floor 3, the upper surface of the lower dielectric substrate 1 is provided with a metal radiation patch 4, and the upper surface of the upper dielectric substrate is provided with a parasitic metal radiation patch 5 to load parasitic The metal radiation patch realizes dual-frequency resonance, which further broadens the impedance bandwidth of the antenna.
[0044] Both the parasitic metal radiation patch 5 and the metal...
Embodiment 2
[0064] A wide-angle scanning phased array, including the equivalent magnetic current miniaturized wide-beam antenna unit as an array element, forming a 1×3 array for decoupling research, the decoupling structure is set in the horizontal direction, and the adjacent array elements In between, the parasitic metal radiation patches are not in the same layer, and are specifically arranged on the upper and lower surfaces of the second-layer PCB board in the upper dielectric substrate.
[0065] like Figure 5(a)-Figure 5(c) As shown, the decoupling structure includes an L-shaped branch 10, an inline-shaped branch 11 and a metal through hole 12. The right end of the L-shaped branch 10 is connected to the left end of the in-line 11 on the lower surface through the metal through-hole 12, and the L-shaped branch and The inline branch is designed with non-equal width, and the L-shaped branch and the inline branch are respectively located on the upper and lower surfaces of the second-layer...
Embodiment 3
[0068] As shown in Figure 7(a) and Figure 7(b), a wide-angle scanning phased array uses the equivalent magnetic current miniaturized wide-beam antenna unit in Embodiment 1 as an array element to form a 4×4 array, with The same array spacing is arranged along the direction of the E plane, and a decoupling structure is set between adjacent array elements in the horizontal direction. The decoupling structure is set on the upper dielectric substrate and is in a different layer from the parasitic metal radiation patch.
[0069] The decoupling structure is an asymmetric structure, including an L-shaped branch 10, a straight branch 11, and a metal through hole 12. The L-shaped branch and the straight branch are not arranged in the same layer, and the distance between them is 0.127mm. The L-shaped branch is located below the parasitic metal radiation patch, and one branch is perpendicular to the parasitic metal radiation patch, and the other branch is arranged in the Y-axis direction a...
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Abstract
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