Satellite communication system and/or navigation system antenna
A satellite communication system and navigation system technology, applied in antennas, antenna couplings, antenna components, etc., can solve problems such as poor antenna performance, improve performance, improve axial ratio and radiation pattern, and suppress cross-polarization components Effect
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Embodiment 1
[0136] Application of car dashboard box antenna system.
[0137] In this embodiment, the antenna system at the position of the control box in the dashboard of an automobile is taken as an example to illustrate the design of the satellite communication system and / or navigation system antenna of the present invention. The appearance structure of the antenna system is as follows Figure 14 As shown, the size is 95mm*90mm*20mm, because its size and shape are similar to a small box, so we call it a box antenna system 25, including an upper box antenna shell 26, a bottom box antenna metal base 27 and a box antenna enclosed in both Internal antenna system. After removing the box antenna shell 26 on the upper part, its internal space is as follows: Figure 15 As shown (in order to clearly show the placement area of the satellite communication system antenna, Figure 15 The satellite communication system antenna is not provided in the box), and the box antenna system 25 includes t...
Embodiment 2
[0157] In addition to the space of the central control instrument panel in Embodiment 1, the built-in antenna system can also be placed in other spatial positions in the car, such as the A-pillar of the car, the recessed space where the roof of the car is connected with the rearview mirror (such as Figure 36 shown) etc. With the strengthening of the car's streamlined appearance, the spaces of the above connection parts are often not standard horizontal and vertical, but have complex structures such as curved and inclined. In this example, we use Figure 36 As shown in the recessed space 30 at the junction of the roof of the car and the rearview mirror, a 150mm*50mm platform (such as Figure 37 shown) to place the GNSS antenna (i.e. the system antenna 12), two LTE antennas 24 and other antennas. We can verify through the simulation in the whole vehicle that in the inclined and narrow space of this embodiment, the GNSS antenna design of this embodiment still has great advanta...
Embodiment 3
[0166] This embodiment is basically the same as Embodiment 1, except that the metal diaphragm 18 in this embodiment is configured to be composed of three sub-metal diaphragms 23, wherein the sub-metal diaphragms 23 on both sides are arranged in a planar structure, and the middle sub-metal diaphragm The sheet 23 is arranged as a three-dimensional folded structure, and a second feed point 22 is set at the appropriate position of the two sub-metal diaphragms 23 on both sides, so that the two sub-metal diaphragms can be fed through the second feed point 22 The diaphragm 23 is formed as two MIMO Wi-Fi antennas, and at the same time, the three sub-metal diaphragms 23 serve as the metal diaphragm 18 to improve the GNSS antenna, thereby improving the integration and space utilization of the box antenna system 25 .
[0167] On the basis of the position and size of the metal shrapnel in Embodiment 1, the present embodiment carries out the following steps on the metal shrapnel: Figure 4...
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