A wide-beam navigation antenna with broadband fss structure and double s-shaped probe feeding
A split resonant ring, wide beam technology, applied in the radiating element structure, antenna coupling, antenna grounding device and other directions, can solve the problem that the 3dB beam width and antenna bandwidth are not wide enough, the low elevation angle gain is not high, and it is difficult to meet the requirements of satellite navigation, etc. problem, to achieve the effect of being conducive to miniaturized design, improving feeding efficiency, and reducing the length of space
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[0032] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.
[0033] like figure 1 As shown, a dielectric substrate 102 with a dielectric constant εr=2.2, a radius r=28mm, and a thickness h=0.5mm is selected as the substrate of the split resonator ring. On the upper surface of the dielectric substrate, there are 4 large opening resonant rings 101a with an outer radius of r=11.5mm and an inner radius of r=9.5mm, and the opening diameter is 7.5mm; there are four other large openings with an outer radius of r=2.5mm and an inner radius of r=1.5mm The small split resonant ring 101b has an opening diameter of 1mm. The distance between the center of the large-aperture resonant ring 101a and the center of the dielectric substrate 102 is 16mm; the distance between the center of the small-aperture resonant ring 101b and the center of the dielectric substrate is 1...
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