Dual-polarization filtering antenna unit and dual-polarization filtering antenna array
A filtering antenna and dual-polarization technology, which is applied to antenna arrays, antenna arrays, antennas, etc. that are powered separately, can solve the problems of antenna bandwidth narrowing, achieve extended low-frequency bandwidth, good band-stop filtering effect, and realize miniaturization Effect
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example 1
[0106] Such as Figure 16 and Figure 17 As shown, it shows a miniaturized dual-frequency dual-polarization millimeter-wave filter antenna unit, including an electric dipole structure 1, a magnetic dipole structure 2, a metallized via hole 3, a feed structure 4 and a metal substrate 5. Multiple dielectric layers are arranged between the electric dipole structure 1 and the metal substrate 5 .
[0107] Among them, such as Figure 9 As shown, the electric dipole structure 1 includes four radiating sheets 11 distributed in an array, and the structure of the radiating sheets is not limited to circular, rectangular, triangular or fan-shaped.
[0108] Such as Figure 15 and Figure 18 As shown, the magnetic dipole structure 2 includes a metal strip 22, the metal strip 22 forms a closed area, each dielectric layer is provided with a metallized via hole 3 in the area corresponding to the closed area, and the metallized via hole 3 of a plurality of dielectric layers The axes are pa...
example 2
[0124] Such as Figure 23 As shown, this embodiment provides another miniaturized dual-frequency dual-polarized millimeter-wave filter antenna, which includes an electric dipole structure 10, a magnetic dipole structure 20, short-circuit column structures 301 and 302, and a feed structure 40 and metal substrate 50.
[0125] Such as Figure 23 and Figure 24 As shown, the short-circuit column structure 302 includes a plurality of short-circuit columns connected to each other, which can be further equivalent to metal walls, distributed in four quadrants of the metal ground 50 , and distributed rotationally symmetrically around the center of the metal ground. When the antenna works in the 0° polarization direction, along the 0° polarization direction, the current flows from one side of the short-circuit column through the metal ground to the other side of the short-circuit column, resulting in resonance, thereby generating a new radiation mode at low frequencies, greatly Broad...
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