Circularly polarized millimeter wave lens antenna device
A lens antenna, millimeter wave technology, applied in antennas, resonant antennas, electrical short antennas, etc., can solve the problems of large thickness of dielectric lens, large loss of copper foil, narrow beam, etc., and achieve easy industrial production, low manufacturing cost, and improved performance effect
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Embodiment 1
[0032] Such as Figure 1-3 As shown, a circularly polarized millimeter-wave lens antenna device proposed by the present invention includes a base 1, a dielectric lens 2, a horn antenna 3 and a feed 4;
[0033] The feed source 4 includes a dielectric board A41, a dielectric board B42 and a dielectric board C43; the dielectric board A41, the dielectric board B42 and the dielectric board C43 are stacked and connected sequentially; the upper end surface of the dielectric board A41, between the dielectric board A41 and the dielectric board B42, and A first layer of copper foil 401, a second layer of copper foil 402, a third layer of copper foil 403 and a fourth layer of copper foil 404 are provided between B42 and the dielectric board C43 and on the lower end surface of the dielectric board C43;
[0034] Wherein, the thickness of the first layer of copper foil 401 and the fourth layer of copper foil 404 is 35 μm; the thickness of the second layer of copper foil 402 and the third la...
Embodiment 2
[0056] Such as Figure 4-6 As shown, the application of a circularly polarized millimeter-wave lens antenna device proposed by the present invention includes the circularly polarized millimeter-wave lens antenna device in Embodiment 1, and the circularly polarized millimeter-wave lens antenna device is applied in the wave frequency band of 79 GHz Carry out electromagnetic wave signal transmission and reception;
[0057] Then, the center frequency is 79GHz;
[0058] Bandwidth: ≥7GHz;
[0059] Gain: ≥25dB;
[0060] 3dB beamwidth: ≤±3°;
[0061] Standing wave ratio: ≤2;
[0062] Side lobe suppression ≥: 20dB;
[0063] Axial ratio: ≤1dB.
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Abstract
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Application Information
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