Adjustable multi-band antenna system
A multi-frequency antenna and adjustable technology, which is applied in the direction of antenna, antenna support/installation device, and device that enables the antenna to work in different bands at the same time, can solve the problem of small antenna space, small mobile phone antenna space, and unfavorable antenna of metal structural parts. design and other issues to achieve the effect of wide bandwidth and multiple frequency bands
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Embodiment 1
[0031] An adjustable multi-frequency antenna system is suitable for a mobile terminal with a metal frame structure. The antenna system includes a metal frame, a PCB board and an antenna part; the PCB board is a general printed circuit board (Printed circuit board).
[0032] Such as figure 1 As shown, the metal frame includes a first bottom frame 102, a first side frame 103, a second side frame 104, a top frame 105, a third side frame 106, a fourth side frame 107 and a second bottom frame 108; the first bottom frame 102, the first side frame 103, the second side frame 104, the top frame 105, the third side frame 106, the fourth side frame 107 and the second bottom frame 108 are sequentially connected to form a first space; the first bottom frame 102 and A gap 109 is provided between the second bottom frame 108; the metal frame wraps around the mobile terminal; the first bottom frame 102 and the second bottom frame 108 correspond to the bottom of the mobile terminal. In this em...
Embodiment 2
[0053] Such as Image 6 As shown, the difference between this embodiment and Embodiment 1 is that the antenna part is not provided with the first high-frequency coupling arm 210, and this Embodiment 1 is applicable to the fact that the lengths of the first bottom frame 102 and the first side frame 103 meet the requirements of high The case of frequency parasitic arm requirements. Other technical features of this embodiment are the same as those of Embodiment 1, and will not be repeated here.
Embodiment 3
[0055] Such as Figure 7 As shown, the difference between this embodiment and Embodiment 1 is that the antenna part includes a second high-frequency coupling arm 212 and a second coupling point 211 , replacing the first high-frequency coupling arm 210 in Embodiment 1. The second high-frequency coupling arm 212 is arranged in the same plane as the feeder trace part, and the second coupling site 211 is arranged in the PCB board; the second high-frequency coupling arm 212 is connected with the second coupling site 211, and is connected with the second coupling site 211 Corresponding to the first high-frequency branch 203 . The second high-frequency coupling arm 212 in this embodiment is used as a high-frequency parasitic arm for generating the required high-frequency resonance. Other technical features of this embodiment are the same as those of Embodiment 1, and will not be repeated here.
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