Tri-band antenna of locomotive
A technology of frequency bands and antennas, applied in the field of locomotive three-band antennas, can solve problems such as undisclosed technical solutions, and achieve the effects of good radiation direction performance, high radiation gain, and small size
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[0020] see figure 1 , figure 2 As shown, a three-band antenna for a locomotive comprises a base 7 and a half-wave metal plate vibrator located on the metal base 7; the base 7 is provided with a conductive connection with the half-wave metal plate vibrator The coaxial feed port 6; the half-wave metal plate vibrator is fixedly connected to the base 7 through the insulator 8.
[0021] The half-wave metal plate vibrator of the present invention includes an upright metal sheet branch 1, a first metal sheet-shaped side arm extension branch 2, a second metal sheet-shaped side arm extension branch 3, and a top metal sheet-shaped extension branch 4 and the bending extension piece branch 5; the top metal sheet extension branch 4 and the upright metal sheet branch 1 are in a "T" shape structure; the first metal sheet side arm extension branch 2 and the second metal sheet The branch 3 of the extension section of the side arm is respectively located on both sides of the branch 1 of the ...
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