Communication device with metal shell and NFC structure thereof
A metal shell and metal shell technology, applied in antenna equipment with additional functions, metal shells, transmission systems, etc., can solve problems such as reduced communication performance, and achieve the effects of uniform magnetic field, superior performance and cost saving
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Embodiment 1
[0044] Such as figure 1 As shown, the NFC structure of the metal case provided by the present invention includes a metal case 1 , an inductance element 2 and an insulator; the metal case 1 includes a metal case body 11 , a side metal frame 12 and a top metal frame 13 . Between the top metal frame 13 and the metal shell body 11 is a plastic area 3 . The insulator is made of plastic material, forming a plastic area separating the metal shell body 11 and the top metal frame 13 . The inductance element 2 is an inductance with a high Q value. The surface of the metal shell body is complete without slots.
[0045] The inductance element 2 includes a first inductor 21 , a second inductor 22 and a third inductor 23 . There are two breakpoints on the top metal frame, which are divided into the first breakpoint and the second breakpoint. The two ends of the first breakpoint are respectively connected to one end of a first inductance 21 and one end of a second inductance 22; the othe...
Embodiment 2
[0049] Such as image 3 , Figure 5 As shown, one end of the third inductor 23 connected to the top metal frame 13 is disconnected and connected to the metal shell body 11, or as Figure 4 As shown, the end of the first inductor 21 connected to the top metal frame 13 is disconnected and connected to the metal shell body 11 to obtain three NFC structures of the present invention with different loops and different radiation areas. This series of NFC structure is suitable for the connection position or method of the inductive element that cannot satisfy such figure 1 Communication equipment under conditions.
Embodiment 3
[0051] Such as Figure 6As shown, the NFC structure can directly connect the part between the first breakpoint and the second breakpoint of the top metal frame 13 to the inductive element 2 when there is no condition to use the metal frame 12 on both sides and the metal shell body 11 to radiate. Connect with NFC radio frequency circuit. The radiation area in this embodiment is composed of the top metal frame 13 , the inductance element 2 and the wires connecting the top metal frame 13 and the inductance element 2 , the inductance element 2 and the NFC radio frequency circuit.
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