CN1874169B - Mobile communication device - Google Patents

Abstract

A mobile communication device includes an input unit, a display unit and a planar antenna. The display unit is movably connected to the input unit, wherein the display unit has a first shell, and the first shell has a first outer surface. The planar antenna has a radiator, wherein the radiation system is exposed on the first outer surface.

Description

mobile communication device

technical field

The present invention relates to a mobile communication device, in particular to a mobile communication device with a planar antenna.

prior art

With the rapid development of wireless communication and the trend of miniaturization of mobile communication products, the location and space of antennas are compressed, which relatively causes difficulties in design, and some built-in miniature antennas have emerged as the times require. Generally speaking, the micro-antennas commonly used at present include chip antennas and planar antennas, etc. These types of antennas all have the characteristics of small size, and the common chip antennas such as co-fired ceramics Technology (LTCC) made of ceramic chip antenna (ceramic chip antenna), and there are many planar antenna designs, such as microstrip antenna (microstrip antenna), printed antenna (printed antenna) and planar inverted F antenna (Planar Inverted F Antenna) , PIFA) and so on, these antennas are widely used in wireless terminal equipment such as GSM, DCS, UMTS, WLAN and Bluetooth, such as mobile phones, wireless area network cards and so on.

As shown in Figure 1, taking a conventional foldable mobile phone as an example, it is mainly composed of a display unit 10 and an input unit 20 (such as an input keyboard or a touch panel), the above-mentioned display unit 10 and input unit 20 can be rotatably connected through a pivot H. Generally speaking, the above-mentioned built-in antenna system can be arranged inside the casing of the input unit 20 (as shown in position A), but since the input unit 20 of the foldable mobile phone is usually shorter than the vertical mobile phone, if the built-in The embedded antenna is disposed inside the input unit 20 , and the user's hand may cover the antenna and affect the radiation performance of the antenna. On the other hand, because the battery B and other electronic components inside the input unit 20 limit the position and space where the embedded antenna can be placed, it also causes difficulties in design.

Relatively speaking, the upper cover area of the foldable mobile phone is an area to be developed. Another known method is to arrange the embedded antenna inside the housing of the display unit 10 (as shown at position A' in FIG. 1 ). ), so that the problem of the embedded antenna being covered by hands can be improved, but in order to take into account the overall thickness of the display unit 10 and the spatial configuration of the outer screen S1 and the main screen (not shown), how to design An embedded antenna structure that does not affect the radiation performance of the antenna and can save space becomes an important subject.

Invention content:

The invention provides a mobile communication device, which includes an input unit, a display unit and a planar antenna. The display unit is movably connected to the input unit, wherein the display unit has a first casing, and the first casing has a first outer surface. The aforementioned planar antenna has a radiator, wherein the radiation system is exposed on the first outer surface.

In a preferred embodiment, the aforementioned mobile communication device further includes a specific pattern formed on the first outer surface, wherein the aforementioned radiation system constitutes at least a part of the aforementioned specific pattern.

In a preferred embodiment, the aforementioned planar antenna further has a ground element, wherein the ground element is disposed on the first casing.

In a preferred embodiment, the first housing further has a first inner surface, and the grounding element is disposed on the first inner surface, wherein the grounding element is made of metal material or conductive paint.

In a preferred embodiment, the aforementioned planar antenna is a patch antenna.

In a preferred embodiment, the planar antenna is a slot type antenna.

In a preferred embodiment, the display unit further has a circuit board, and the planar antenna further has a ground element, and the ground element is connected to the circuit board.

The above-mentioned display unit further has a main screen, wherein the circuit board has a display driving circuit to drive and control the above-mentioned main screen.

The above-mentioned display unit further has an external screen (sub-LCM) disposed on the first housing, wherein the circuit board has a display driving circuit for driving and controlling the external screen.

In a preferred embodiment, the aforesaid display unit further has a second casing, the aforesaid second casing is connected with the first casing, and the aforesaid planar antenna further has a grounding element, wherein the grounding element is arranged on the second The housing is separated from the radiator by a distance.

In a preferred embodiment, the aforementioned second casing has a second inner surface, wherein the second inner surface is opposite to the first casing and substantially parallel to the first outer surface, and the aforementioned grounding element is disposed on the second on the inner surface.

In a preferred embodiment, the aforementioned planar antenna is a Planar Inverted F Antenna (PIFA).

In a preferred embodiment, the aforementioned planar antenna further has a ground element, wherein both the ground element and the radiator are exposed on the first outer surface.

In a preferred embodiment, the aforementioned planar antenna is a planar monopole antenna.

The present invention further provides a foldable mobile communication device. The foldable mobile communication device includes an input unit and a display unit, wherein the input unit and the display unit are pivotally connected to each other. The aforementioned display unit has a first housing and a second housing, wherein the first housing has a first outer surface, the second housing has a second outer surface, and the first outer surface is adjacent to the second outer surface . When the display unit and the input unit are folded toward each other, the aforementioned second outer surface faces the input unit. In particular, the aforementioned planar antenna has a radiator, and the radiation system is exposed on the second outer surface.

In a preferred embodiment, the aforementioned planar antenna further has a grounding element, wherein the grounding element is disposed on the first casing and exposed on the aforementioned first outer surface.

In a preferred embodiment, the aforementioned mobile communication device is a Global Positioning System (GPS) device.

In order to make the above-mentioned objects, features and advantages of the present invention more comprehensible, preferred embodiments are specifically described below together with the attached drawings.

Description of drawings:

FIG. 1 is a schematic diagram showing a conventional mobile communication device;

Fig. 2A is a schematic diagram showing the first embodiment of the present invention;

Fig. 2B is a schematic diagram showing the second embodiment of the present invention;

Fig. 3 shows the schematic diagram of the third embodiment in the present invention;

Fig. 4 shows the schematic diagram of the fourth embodiment in the present invention;

Fig. 5 shows the schematic diagram of the fifth embodiment in the present invention;

Fig. 6 shows the schematic diagram of the sixth embodiment in the present invention; And

Fig. 7 is a schematic diagram showing a seventh embodiment of the present invention.

Detailed ways:

Please refer to FIG. 2A , which shows a schematic view of the first embodiment of the present invention. The mobile communication device of the present invention can be, for example, a foldable mobile phone, a PDA or a Global Positioning System (GPS) device, etc., and it mainly includes a display unit 10 and an input unit 20, and the above-mentioned display unit 10 and the input unit 20 pass through The pivots H are connected and mutually rotatable.

As shown in FIG. 2A, a planar antenna 30 and an external screen S1 (sub-LCM) are disposed on the first outer surface 101' of the display unit 10. As shown in FIG. In this embodiment, the above-mentioned planar antenna 30 is a patch antenna (patch antenna), its radiation system is exposed on the first outer surface 101' and has a specific shape, but the above-mentioned radiator can also be designed as other Different shapes can form part of specific patterns such as mobile phone appearance or identification marks.

In particular, since the radiation system of the aforementioned planar antenna 30 is exposed on the first outer surface 101', it will not be covered by the casing, and will not be covered by the user's hand, thereby having better radiation performance. . In addition, by exposing the radiator of the planar antenna 30 on the first outer surface 101', it can constitute a part of the exterior shape or identification mark of the mobile phone, thereby reducing the design and manufacturing costs of the shell exterior.

Next, please refer to FIG. 2B , which shows a schematic view of the second embodiment of the present invention. As shown in the figure, the planar antenna 40 in this embodiment is a slot type antenna (slot type antenna), and its radiator is also exposed on the first outer surface 101'. In particular, there is a groove 40' of a specific shape in the center of the radiator of the planar antenna 40, wherein the groove 40' can also be designed in other different shapes as required, and can be formed as a mobile phone appearance or identification part of the logo.

In this embodiment, since the radiation system of the planar antenna 40 is exposed on the first outer surface 101', it will not be covered by the casing, nor will it be covered by the user's hand, thus having better radiation performance. In addition, the shape of the groove 40' on the planar antenna 40 can also be used to directly form a part of the exterior shape or identification mark of the mobile phone, thereby reducing the design and manufacturing costs of the shell exterior.

Next, please refer to FIG. 3 , which shows a schematic diagram of a third embodiment of the present invention. As shown in the figure, the display unit 10 mainly includes a first housing 101 , a second housing 102 , an outer screen S1 , a main screen S2 , a circuit board M and a planar antenna 50 . The planar antenna 50 in this embodiment is a Planar Inverted F Antenna (PIFA), which has a radiator 501 and a ground element 502 . In particular, the above-mentioned radiator 501 is exposed on the first outer surface 101' outside the first housing 101, wherein the grounding element 502 is made of metal, and is arranged on the circuit board M inside the display unit 10. The circuit board M It includes a display driving circuit for driving and controlling the external screen S1 and the main screen S2 on the display 10 .

As mentioned above, since the radiator 501 of the planar antenna 50 is exposed on the first outer surface 101', it will not be covered by the casing, nor will it be covered by the user's hand, thus having better radiation performance. . In addition, the radiator 501 can also be used to directly constitute a part of the exterior shape or identification mark of the mobile phone, thereby reducing the design and manufacturing costs of the casing exterior.

Next, please refer to FIG. 4 , which shows a schematic diagram of a fourth embodiment of the present invention. As shown in the figure, the radiator 501 is exposed on the first outer surface 101 ′ of the first housing 101 , but the difference from the third embodiment is that the grounding element 502 is disposed on the second inner surface of the second housing 102 Surface 102 ". As shown in Figure 4, the aforementioned second inner surface 102" is relative to the first housing 101 and approximately parallel to the first outer surface 101', while the aforementioned grounding element 502 can be made of metal or Conductive paint. In this embodiment, by forming a specific height between the radiator 501 and the ground element 502, the performance and bandwidth of the antenna can be further improved.

Next, please refer to FIG. 5 , which shows a schematic diagram of a fifth embodiment of the present invention. In this embodiment, a planar antenna 60 is provided in the display unit 10. The planar antenna 60 is a patch antenna with a radiator 601 and a grounding element 602. The radiator 601 and the grounding element 602 are embedded in the first housing 101, wherein the grounding element 602 can be made of metal or conductive paint. As shown in the figure, the aforementioned grounding element 602 is located on the first inner surface 101" of the first casing 101, while the radiator 601 is exposed on the first outer surface 101'.

As shown in FIG. 5 , since the radiator 601 of the planar antenna 60 is exposed on the first outer surface 101 ′, it will not be covered by the casing, nor will it be covered by the user's hand, thereby having better radiation. efficacy. In addition, the radiator 601 can be used to form a part of the exterior shape or identification mark of the mobile phone, so that the design and manufacturing costs of the shell exterior can be reduced.

Next, please refer to FIG. 6 , which shows a schematic view of the sixth embodiment of the present invention. In this embodiment, a planar antenna 70 is provided on the first outer surface 101' of the first casing 101, and the above-mentioned planar antenna 70 is a planar monopole antenna (planar monopole antenna) with a radiator 701 And a grounding element 702, especially the aforementioned radiator 701 and the grounding element 702 are exposed on the first outer surface 101'.

As mentioned above, by exposing the radiator 701 and the grounding element 702 on the first outer surface 101', the antenna can be prevented from being covered by the case or covered by the user's hand, thus having better radiation performance. In addition, the radiator 701 or the grounding element 702 can also be used to directly form a part of the exterior shape or identification mark of the mobile phone, thereby reducing the design and manufacturing costs of the shell exterior.

Next, please refer to FIG. 7 , which shows a schematic diagram of a seventh embodiment of the present invention. The foldable mobile communication device of this embodiment is, for example, a GPS device, which mainly includes a display unit 10 and an input unit 20 , the display unit 10 and the input unit 20 are connected by a pivot H to rotate mutually. As shown in the figure, the aforementioned display unit 10 has a first housing 101 and a second housing 102, wherein the first housing 101 is located outside the display unit 10, and the first and second housings 101, 102 respectively have a The first outer surface 101' and a second outer surface 102', the first outer surface 101' is adjacent to the second outer surface 102'. When the display unit 10 and the input unit 20 are folded toward each other to form a closed state, the aforementioned second outer surface 102' faces the input unit 20 (as shown by the direction of the arrow).

In particular, the planar antenna 80 shown in FIG. 7 is a Planar Inverted F Antenna (PIFA), which has a radiator 801 and a ground element 802. The difference from the previous embodiments is that the radiator 801 is exposed on the second outer surface 102' of the second housing 102, and the grounding element 802 is disposed on the first outer surface 101' of the first housing 101, In this way, a specific height can be formed between the radiator 801 and the ground element 802, so as to improve the performance and bandwidth of the antenna.

However, the aforementioned grounding element 802 can also adopt different configurations according to different antenna structure designs. For example: the ground element 802 can be connected to the circuit board M inside the display unit 10, or the ground element 802 and the radiator 801 can also be embedded on the second housing 102 to form the aforementioned patch antenna. In addition, the grounding element 802 and the radiator 801 can also be exposed on the second outer surface 102 ′ to form the above-mentioned planar monopole antenna structure.

In view of the fact that some communication devices (such as the global satellite positioning system) must simultaneously activate the above-mentioned antenna and the main screen S2 when in use, wherein the antenna generally must face a specific angle to facilitate receiving signals. In this embodiment, the radiation body 801 is mainly used to It is exposed on the second outer surface 102 ′ of the second housing 102 , so that the radiator 801 can be prevented from being covered by the housing during use, and it is not easily covered by the user's hand, thereby having better radiation efficiency. Similarly, the aforementioned radiator 801 can also form a part of a specific appearance or identification mark on the second outer surface 102', thereby reducing the design and manufacturing costs of the housing appearance.

The planar antenna in the foregoing embodiments can be used as a low-frequency or multi-frequency antenna, and can also be used as an auxiliary antenna (AUX antenna), so as to make up for the main antenna pattern (pattern) or gain (gain) at other locations. deficiencies, thereby increasing the scope and coverage of communications.

In summary, the mobile communication device of the present invention exposes the radiator in the planar antenna on the "outer surface" (the first or second outer surface) of the display unit casing, which not only increases the radiation area, but also has no Will be covered by the housing or the user's hand, thus improving the performance of the antenna. In particular, in the present invention, the radiator of the planar antenna directly constitutes a part of the appearance or identification mark, which not only saves space, but also reduces the design and manufacturing cost of the shell appearance.

Although the present invention is disclosed above with preferred embodiments, it is not intended to limit the scope of the present invention. Anyone skilled in this art can make some changes and modifications without departing from the spirit and scope of the present invention. Modification, so the scope of protection of the present invention should be defined by the scope of the appended patent application.

Claims (20)

1. mobile communications device comprises:

One input unit;

One display unit articulates this input unit, and wherein this display unit has one first housing, and this first housing has one first outer surface; And

One planar antenna has a radiant body, and wherein this radiant body is revealed on this first outer surface.

2. mobile communications device according to claim 1 is characterized in that, comprises that more one constitutes the pattern of cell phone appearance moulding or distinguishing mark, is formed on this first outer surface, and wherein this radiation system constitutes at least a portion of this pattern.

3. mobile communications device according to claim 1 is characterized in that, more comprises a pivot, in order to articulate this display unit and this input unit.

4. mobile communications device according to claim 1 is characterized in that this planar antenna has more an earth element, and this earth element system is arranged at this first housing.

5. mobile communications device according to claim 4 is characterized in that, this first housing has more one first inner surface, and this earth element system is arranged on this first inner surface, and this earth element is metal material or conductive paint.

6. mobile communications device according to claim 1 is characterized in that, this planar antenna is a plate aerial (patch antenna).

7. mobile communications device according to claim 1 is characterized in that, this planar antenna is a plough groove type antenna (slot type antenna).

8. mobile communications device according to claim 1 is characterized in that this display unit has more a circuit board, and this planar antenna has more an earth element, and this earth element connects this circuit board.

9. mobile communications device according to claim 8 is characterized in that, this earth element is a metal material.

10. mobile communications device according to claim 8 is characterized in that this display unit has more a main screen, and this circuit board has a circuit of display driving, in order to drive and to control this main screen.

11. mobile communications device according to claim 8 is characterized in that, this display unit has more an outer screen, be arranged on this first housing, and this circuit board has a circuit of display driving, in order to drive and control should outer screen.

12. mobile communications device according to claim 1, it is characterized in that, this display unit has more one second housing, this second housing connects this first housing, and this planar antenna has more an earth element, this earth element is arranged at this second housing, and with this radiant body distance of being separated by.

13. mobile communications device according to claim 12, it is characterized in that, this second housing has one second inner surface, this second inner surface system is with respect to this first housing, and be roughly parallel to this first outer surface, this earth element system is arranged on this second inner surface, and wherein this earth element is metal material or conductive paint.

14. mobile communications device according to claim 1 is characterized in that, this planar antenna be a planar inverted F-shape antenna (Planar Inverted F Antenna, PIFA).

15. mobile communications device according to claim 1 is characterized in that, this planar antenna has more an earth element, and this earth element is revealed on this first outer surface.

16. mobile communications device according to claim 15 comprises that more one constitutes the pattern of cell phone appearance moulding or distinguishing mark, is formed on this first outer surface, wherein this earth element constitutes at least a portion of this pattern.

17. mobile communications device according to claim 1 is characterized in that, this planar antenna is a planar monopole antenna.

18. a folding type mobile communication device comprises:

One input unit;

One display unit, articulate this input unit, this display unit has one first housing and one second housing, this first housing has one first outer surface, and this second housing has one second outer surface, wherein this first outer surface system is in abutting connection with this second outer surface, and when this display unit and this input unit were folded toward, this second outer surface was towards this input unit; And

One planar antenna has a radiant body, and wherein this radiant body is revealed on this second outer surface.

19. folding type mobile communication device according to claim 18 is characterized in that, this planar antenna has more an earth element, and this earth element system is fixed in this first housing and is revealed on this first outer surface.

20. folding type mobile communication device according to claim 18 is characterized in that, this folding type mobile communication device is a GPS (Global Position System) (GPS) device.

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