Broadband and high low-elevation gain first-generation beidou satellite navigation transceiver antenna
A satellite navigation, transceiver antenna technology, applied in the direction of the connection of the antenna grounding switch structure and the structure of the radiating element, can solve the problems of increasing the size of the navigation terminal equipment, the antenna beam is not wide enough, the axial ratio bandwidth is small, etc., to reduce the material cost. , low cost, the effect of increasing the axial ratio bandwidth
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[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0021] Such as Figure 1 to Figure 3 As shown, this example includes that the upper dielectric board 1 and the lower dielectric board 2 are fixed by four plastic screw columns 3, and four grounded rectangular copper sheets 4 are arranged around them, and the copper sheets are welded to the grounding board by solder; A certain thickness of the air layer, and is provided with the first coupling circular copper sheet 5 and the second coupling circular copper sheet 7, the center of the coupling circular copper sheet is the feeding point, the first feeding probe 6 and the second feeding The top ends of the electric probes 8 are respectively welded to the feeding points of the first coupling circular copper sheet 5 and the second coupling circular copper sheet 7 . The lower surface of the upper dielectric board is provided with an inner square ring-shaped ra...
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