Communication terminal
A communication terminal and magnetic technology, which can be applied in the directions of cooperating devices, antenna supports/installation devices, near-field transmission systems using transceivers, etc., and can solve the problems of increasing distance and difficulty in ensuring communication characteristics.
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no. 1 approach 》
[0066] The communication terminal device according to the first embodiment is used as a mobile communication terminal such as a mobile phone terminal, for example. figure 2 It is a figure which shows the antenna coil with which this communication terminal apparatus is equipped. The antenna coil 21 is used, for example, as an antenna for an RFID system of an HF band such as 13.56 MHz. figure 2 (A) is a plan view of the antenna coil, figure 2 (B) is a front view. The antenna coil 21 includes a magnetic core 8 having a first main surface MS1 and a second main surface MS2 , and a coil conductor 9 wound around the magnetic core 8 . The coil conductor 9 has: a first conductor portion 11 located on the first main surface MS1 side of the magnetic core 8; The second conductor portion 12 at a different position (non-overlapping position) from the first conductor portion 11 .
[0067] Such as figure 2 As shown in (A), the magnetic core 8 is an iron core formed by molding a mixtu...
no. 2 approach 》
[0085] Figure 9 It is a figure which shows the structure of the antenna coil of 2nd Embodiment.
[0086] Figure 9 (A) is a plan view of the flexible base material 10 in the state in which the coil conductor 9 was formed. Coil conductor 9 is formed on the upper surface of flexible base material 10 .
[0087] Figure 9 (B) is a figure which shows the shape of 9 S of upper layer coil conductor parts of the coil conductor 9. Figure 9 (C) is a figure which shows the shape of the lower layer coil conductor part 9U of the coil conductor 9. As shown in FIG. and, Figure 9 (D) is a figure which shows the state which overlapped with 9 U of lower layer coil conductor parts, and 9 S of upper layer coil conductor parts.
[0088] The lower coil conductor portion 9U and the upper coil conductor portion 9S each have a substantially rectangular spiral shape, and an insulating layer is interposed between the lower coil conductor portion 9U and the upper coil conductor portion 9S. Howeve...
no. 3 approach 》
[0096] In the third embodiment, an example of arrangement and electrical connection of the antenna coil in the housing of the communication terminal device is shown.
[0097] Figure 11 (A) is a sectional view of the main part of the communication terminal device, Figure 11 (B) is a front view of the antenna coil. The coil conductor 9a is formed on the upper surface of the flexible base material 10, and the coil conductor 9b is formed on the lower surface. These patterns are the same as in the second embodiment Figure 9 Same as shown. Figure 9 In the example shown, two layers of coil conductors are formed on one side of the flexible substrate, but Figure 11 In the example, it is formed on both sides of the flexible base material, and is connected through a through-hole electrode at a predetermined position.
[0098] Such as Figure 11 As shown in (A), the antenna coil 23 is attached to the inner surface of the housing 200 of the communication terminal device. In add...
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