Multi-band built-in antenna
A built-in antenna, multi-band technology, applied in the direction of antenna, antenna grounding device, antenna grounding switch structure connection, etc., can solve problems such as large space, and achieve the effect of increasing flexibility, ensuring reliable work, and improving reliability and stability.
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[0031] See figure 1 , The present invention relates to a multi-band built-in antenna, including horizontal branch, vertical branch, metal feed strip 3, ground metal strip 4, substrate ground plane 5 and substrate 6, said substrate ground plane 5 is the metal in the substrate 6 Layer, used to simulate the actual working ground plane of the antenna; the horizontal branch includes horizontal branch 101, horizontal branch 102, and horizontal branch 103. The vertical branch includes vertical branch 201, vertical branch 202, and vertical branch. Branch three 203 and vertical branch four 204, said horizontal branch one 101 and horizontal branch two 102 are connected by vertical branch one 201, vertical branch two 202 and vertical branch three 203, said horizontal branch two 102 and horizontal branch three 103 pass through The vertical branch four 204 are connected, the horizontal branch three 103 is connected to the substrate ground plane 5 through the metal feeding strip 3, one end of...
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