Broadband and wide-angle dual-circular polarization spaceborne antenna
A dual circular polarization, satellite-borne antenna technology, applied in the antenna, antenna grounding switch structure connection, electrical components, etc., can solve the problem of unstable antenna performance, achieve good phase consistency, high processing accuracy, reduce processing and The effect of the difficulty of making
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[0019] combine figure 1 The structure of the wide bandwidth angle double circular polarization spaceborne antenna of the present invention designs a wide bandwidth angle double circular polarization spaceborne antenna: the frequency band range is 2.0-6.0GHz; the VSWR in this frequency band is less than 2, the axis The axial gain is greater than 4.5dB, and the axial ratio is less than 3 dB. The thickness of the microstrip antenna is 0.5mm, the dielectric constant is 2.65, and the size of the antenna is 140mm×140mm×142mm.
[0020] figure 2 It is the result graph of the voltage standing wave ratio of the two ports of the dual circularly polarized space-borne antenna with wide bandwidth and angle of the present invention. The working frequency range of the antenna is 2-6GHz, and the voltage standing wave ratio is less than 1.4, which meets the design index.
[0021] image 3 It is the axial gain result diagram of the two ports of the wide bandwidth angle dual circularly polar...
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