Ka-band single-feed-point circularly polarized antenna
A circularly polarized antenna, single-feed technology, applied in the direction of antenna, antenna coupling, resonant antenna, etc., can solve the problem of narrow bandwidth of circularly polarized antenna
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[0044] Such as figure 1 As shown, in this embodiment, a Ka-band single-feed point circularly polarized antenna is characterized in that it includes a three-layer structure arranged in sequence from top to bottom, such as figure 2 A double-layer dielectric substrate is also arranged between the three-layer structure shown, and the double-layer dielectric substrate includes an upper dielectric substrate 3 and a lower dielectric substrate 4; the working bandwidth and the axial ratio bandwidth of the antenna are widened by the two-layer dielectric substrate;
[0045] The first layer structure includes a parasitic patch 1 and a decoupling frame 5. The radiation patch 2 is arranged in the upper middle of the upper dielectric substrate 3 for expanding the working bandwidth of the antenna. The decoupling frame 5 is arranged on the upper middle of the upper dielectric substrate 3. Around the upper part, when the unit antennas form an array, it is used to prevent mutual interference be...
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