TWI634830B - Convertible mobile device and radiation enhancement device - Google Patents

Abstract

A deformable mobile device includes: an upper cover, a base, a shaft member, and an antenna element. The upper cover includes an upper cover housing and a display frame relative to one of the upper cover housings. The base includes a frame and a base housing relative to one of the frames. The hinge member is coupled between the upper cover and the base such that the deformable mobile device can be flipped to operate in a notebook mode or a tablet mode. The antenna element is disposed on the upper cover, wherein the antenna element is configured to operate in at least one operating frequency band. The base housing includes a metal cover member, wherein the metal cover member has a first slot and a second slot.

Description

Deformable mobile device and radiation augmentation device

The present invention relates to a Convertible Mobile Device, and more particularly to a deformable mobile device that can improve Antenna Efficiency.

With the development of mobile communication technologies, mobile devices have become more and more popular in recent years, such as portable computers, mobile phones, multimedia players, and other portable electronic devices with mixed functions. In order to meet people's needs, mobile devices usually have the function of wireless communication. Some cover long-range wireless communication range, for example, mobile phones use 2G, 3G, LTE (Long Term Evolution) systems and the 700MHz, 850MHz, 900MHz, 1800MHz, 1900MHz, 2100MHz, 2300MHz and 2500MHz bands used for communication, and Some cover short-range wireless communication ranges, such as Wi-Fi, Bluetooth systems using 2.4GHz, 5.2GHz and 5.8GHz bands for communication.

The antenna is an indispensable component in mobile devices that support wireless communication. However, the antenna is susceptible to proximity to metal components. Taking a deformable mobile device as an example, when it operates in different modes, because the relative positions of the antenna element and the metal component therein change, the antenna element is often disturbed and the overall communication quality is degraded. In view of this, it is necessary to propose a new solution. To overcome the problems faced by traditional technology.

In a preferred embodiment, the present invention provides a deformable mobile device comprising: an upper cover comprising an upper cover housing and a display frame relative to the upper cover housing; a base comprising a frame and a base relative to the frame a housing; a shaft member coupled between the upper cover and the base such that the deformable mobile device can be flipped to operate in a notebook mode or a tablet mode; and an antenna element disposed on the upper cover, wherein the antenna component is ???operating in at least one operating frequency band; wherein the base housing comprises a metal covering element, and the metal covering element has a first slot and a second slot.

In some embodiments, the antenna element is a slot antenna element disposed in the upper cover housing, and the frame is a keyboard frame.

In some embodiments, the length of the first slot and the length of the second slot are each substantially equal to 0.5 times the wavelength of the operating band.

In some embodiments, the length of the first slot is slightly greater than the length of the second slot.

In some embodiments, the first slot and the second slot are each substantially straight.

In some embodiments, the first slot and the second slot are substantially parallel to each other.

In some embodiments, the first slot and the second slot each operate between 2400 MHz and 2500 MHz and between 5150 MHz and 5850 MHz.

In some embodiments, when the deformable mobile device is operated on the In the tablet mode, the display frame, the upper cover housing, the base housing, and the frame are sequentially arranged, and the antenna element is adjacent to the first slot and the second slot, such that the metal cover component and The first slot and the second slot are excited by the antenna element and generate radiation.

In some embodiments, the metal covering element covers part or all of one of the outer surfaces of the base housing.

In some embodiments, the base housing has a structural turn.

In some embodiments, the metal covering element includes a first metal surface and a second metal surface, and the structural turning point of the base housing is between the first metal surface and the second metal surface, such that The plane of extension of both the first metal face and the second metal face is different.

In some embodiments, the first slot is located on the first metal face and the second slot is located on the second metal face.

In some embodiments, when the deformable mobile device is operated in the tablet mode, the structural turn of the base housing is adjacent to the antenna element.

In some embodiments, the metal cover member further has a third slot and a fourth slot located on the first metal surface and the second metal surface, respectively.

In some embodiments, the length of the third slot and the length of the fourth slot are both approximately equal to 0.5 times the wavelength of the operating band.

In some embodiments, the length of the third slot is slightly greater than the length of the fourth slot.

In some embodiments, the third slot and the fourth slot are each substantially straight strips.

In some embodiments, the first slot, the second slot, the third slot, and the fourth slot are substantially parallel to each other.

In another preferred embodiment, the present invention provides a radiation enhancement apparatus comprising: an antenna element operating in at least one operating frequency band; and a metal covering element having a first slot and a second slot; The length of the first slot and the length of the second slot are substantially equal to 0.5 times the wavelength of the operating band; wherein the antenna element is adjacent to the first slot and the second slot, such that the metal covers The component and its first slot and the second slot are excited by the antenna element and generate radiation.

In some embodiments, the first slot and the second slot are each substantially straight, and the first slot and the second slot are substantially parallel to each other.

100,300‧‧‧deformable mobile device

102‧‧‧ display

104‧‧‧ keyboard

110‧‧‧Upper cover

112‧‧‧Top cover

114‧‧‧Display frame

120, 320‧‧‧ base

126, 326‧‧‧ frame (keyboard frame)

128, 328, 428‧‧‧ base housing

130‧‧‧Shaft components

140‧‧‧Antenna components

150, 350, 450‧‧‧ metal covering components

161, 361, 461‧‧‧ first slot

162, 362, 462‧‧‧ second slot

329‧‧‧The structural turn of the base shell

351‧‧‧First metal surface

352‧‧‧Second metal surface

463‧‧‧ third slot

464‧‧‧4th slot

CC1‧‧‧ first curve

CC2‧‧‧second curve

CC3‧‧‧ third curve

E1‧‧‧ outer surface of the base shell

L1, L2, L5, L6, L7, L8‧‧‧ length

1A is a schematic view showing a deformable mobile device operating in a notebook mode according to an embodiment of the invention; FIG. 1B is a view showing a deformable mobile device operating in a tablet mode according to an embodiment of the invention; 2 is a schematic view showing a base housing and a metal covering member according to an embodiment of the invention; and FIG. 3 is a schematic view showing a deformable mobile device operating in a tablet mode according to an embodiment of the invention; ; 4 is a schematic view showing a base casing and a metal covering member according to an embodiment of the present invention; and FIG. 5 is a view showing an antenna efficiency of an antenna element of the deformable mobile device according to an embodiment of the present invention.

In order to make the objects, features and advantages of the present invention more comprehensible, the specific embodiments of the invention are set forth in the accompanying drawings.

Certain terms are used throughout the description and claims to refer to particular elements. Those skilled in the art will appreciate that a hardware manufacturer may refer to the same component by a different noun. The scope of the present specification and the patent application do not use the difference in the name as the means for distinguishing the elements, but the difference in function of the elements as the criterion for distinguishing. The words "including" and "including" as used throughout the specification and patent application are open-ended terms and should be interpreted as "including but not limited to". The term "substantially" means that within the acceptable error range, those skilled in the art will be able to solve the technical problems within a certain error range to achieve the basic technical effects. In addition, the term "coupled" is used in this specification to include any direct and indirect electrical connection means. Therefore, if a first device is coupled to a second device, the first device can be directly electrically connected to the second device, or indirectly connected to the second device via other devices or connection means. Two devices.

FIG. 1A is a schematic diagram showing a case where a Convertible Mobile Device 100 operates in a notebook mode according to an embodiment of the invention. Figure 1B shows a real according to the present invention. The schematic diagram of the deformable mobile device 100 as described in the embodiment operates in a tablet mode. Please refer to Figures 1A and 1B together. In the embodiment of FIGS. 1A and 1B, the deformable mobile device 100 includes at least an upper cover 110, a base 120, a hinge element 130, and an antenna element (Antenna Element). ) 140. It should be understood that, although not shown in FIGS. 1A and 1B, the deformable mobile device 100 may further include other components, such as a touch control panel, a processor, and a battery module. (Battery Module), and an input/output device (Input/Output Device).

The upper cover 110 includes an upper cover housing 112 and a display frame 114 opposite to the upper cover housing 112. A display device 102 can be embedded in the display frame 114. The base 120 includes a frame 126 and a base housing 128 relative to the frame 126. For example, the frame 126 can be a keyboard frame in which a keyboard 104 can be embedded in the keyboard frame 126. It should be understood that the upper cover housing 112, the display frame 114, the keyboard frame 126, and the base housing 128 are respectively referred to as "A", "B", "C", and "D" in the notebook computer. . The shaft member 130 is coupled between the upper cover 110 and the base 120. By using the spindle member 130, the deformable mobile device 100 can be selectively flipped to operate in either the notebook mode or the tablet mode.

The antenna element 140 is disposed on the upper cover housing 112, wherein the antenna element 140 is operable in at least one operating frequency band. In some embodiments, the upper cover housing 112 is an all-metal back cover, and the antenna element 140 is a slot. A Slot Antenna Element is formed or disposed on the full metal back cover. It must be understood that the invention is not limited thereto. In other embodiments, the antenna element 140 can also be changed to a Monopole Antenna, a Dipole Antenna, a Loop Antenna, a Patch Antenna, and a Flat. A Planar Inverted F Antenna (PIFA) or a Chip Antenna is disposed in the upper cover 110. In general, antenna element 140 can enjoy better radiation efficiency when deformable mobile device 100 is operating in a notebook mode. Conversely, when the deformable mobile device 100 is operating in the tablet mode, because the antenna element 140 is adjacent to the base housing 128, it is more susceptible to interference by the metal portion of the base housing 128 or the electronic components within the base 120. In order to improve the radiation efficiency of the antenna element 140 in the flat mode, the present invention proposes a completely new solution, as described in the following embodiments.

In a preferred embodiment, the base housing 128 includes a metal cover element 150 having a first slot 161 and a second slot 162. The metal cover member 150 can be a full piece of metal foil or a large area metal plated. The shaft member 130 can include a conductive member that electrically couples the metal cover member 150 of the base housing 128 to the upper cover housing 112 (eg, an all-metal back cover). In some embodiments, the metal cover member 150 covers at least a portion of an outer surface E1 of the base housing 128. In other embodiments, the metal cover member 150 covers all of the outer surface E1 of the base housing 128.

2 is a schematic view showing a base housing 128 and a metal cover member 150 in accordance with an embodiment of the present invention. In the embodiment of Figure 2, A slot 161 and a second slot 162 are each substantially straight strips, wherein the first slot 161 and the second slot 162 are substantially parallel to each other. The length L1 of the first slot 161 and the length L2 of the second slot 162 are both approximately equal to 0.5 times the wavelength (λ/2) of the operating band of the antenna element 140. For example, the aforementioned operating band may be between approximately 2400 MHz and 2500 MHz. In some embodiments, the length L1 of the first slot 161 is slightly larger than the length L2 of the second slot 162. For example, the length L1 of the first slot 161 may be approximately equal to 0.5 times the wavelength of 2400 MHz, and the length L2 of the second slot 162 may be approximately equal to 0.5 times the wavelength of 2500 MHz, so the length L1 will be greater than the length L2. In other embodiments, the length L1 of the first slot 161 is slightly smaller than the length L2 of the second slot 162. For example, the length L1 of the first slot 161 may be approximately equal to 0.5 times the wavelength of 2500 MHz, and the length L2 of the second slot 162 may be approximately equal to 0.5 times the wavelength of 2400 MHz, so the length L1 will be less than the length L2. In addition, in some embodiments, the first slot 161 and the second slot 162 may each have different shapes (not shown), and each of the operating bands may be between 2400 MHz and 2500 MHz and between 5150 MHz and 5850 MHz. between. The length of the first slot 161 and the length of the second slot 162 are both approximately equal to 0.5 times the wavelength (λ/2) of the operating band of the antenna element 140.

Please refer to Figures 1B and 2 together. When the deformable mobile device 100 is operated in the tablet mode, the antenna element 140 is adjacent to the first slot 161 and the second slot 162. The order of the components in the deformable mobile device 100 is sequentially: the display frame 114, The upper cover housing 112, the base housing 128, and the keyboard frame 126 are such that the metal cover member 150 and its first slot 161 and second slot 162 are excited by the antenna element 140 and generate radiation. It should be noted that the term "adjacent" may mean that the shortest distance between the antenna element 140 and the first slot 161 or the second slot 162 is less than 5 mm, but greater than 0 mm. In this design, due to adjacent components The intermetallic coupling element 150 can be considered as an extension of one of the antenna elements 140. Therefore, the metal covering member 150 can not only reduce the interference caused by the radiation pattern of the antenna element 140, but also resonate with the antenna element 140 to enhance the radiation efficiency of the antenna element 140.

In other embodiments, both antenna element 140 and metal cover element 150 can also be used separately to form a Radiation Enhancement Device. The radiation enhancement device does not necessarily need to be combined with the deformable mobile device 100, and the design features are the same as those described in the embodiments of FIGS. 1A, 1B, and 2, and therefore will not be described herein.

FIG. 3 is a schematic diagram showing the operation of the deformable mobile device 300 in a tablet mode according to an embodiment of the invention. Figure 3 is similar to Figure 1B. In the embodiment of FIG. 3, one of the base housings 328 of one of the bases 320 of the deformable mobile device 300 has a structural turn 329. The design of the structural turning portion 329 is added to cause the base 320 to be retracted, and some electronic components can be disposed thereon, for example, one or a plurality of speaker holes. One of the metal covering members 350 of the base housing 328 and the structural turning portion 329 are attached to each other, so that they also assume a turning shape. In detail, the metal covering member 350 includes a first metal surface 351 and a second metal surface 352 connected to each other, wherein the structural turning portion 329 of the base housing 328 is located between the first metal surface 351 and the second metal surface 352. The plane of extension of both the first metal surface 351 and the second metal surface 352 is different. For example, a sharp angle between the first metal face 351 and the second metal face 352 may be between 0 and 80 degrees, such as 45 degrees. In some embodiments, the first metal surface 351 and the second metal surface 352 may also be parallel to each other but the two are not in the same plane to jointly form a stepped shape. In addition, a first slot 361 is formed in the first metal surface 351, and a second slot The 362 is formed on the second metal surface 352. Under this design, when the deformable mobile device 300 is operated in the tablet mode, the structural turning portion 329 of the base housing 328 is adjacent to the antenna element 140, and the metal covering member 350 and its first slot 361 and second slot 362 It will be excited by the antenna element 140 and generate radiation. It must be noted that since both the first slot 361 and the second slot 362 are located on different planes (such as the first metal surface 351 and the second metal surface 352), the antenna will be lifted in a wider area. The intensity of the radiation of element 140 (as indicated by the arrows to the right and down in Figure 3, to enhance the direction of antenna radiation). Thus, the design of the structural transition 329 for the base housing 328 helps to direct the antenna element 140 to a more near-omnidirectional radiation pattern. The remaining features of the deformable mobile device 300 of FIG. 3 are similar to those of the deformable mobile device 100 of FIGS. 1A and 1B. Therefore, both embodiments can exert similar operational effects.

4 is a schematic view showing a base housing 428 and a metal cover member 450 in accordance with an embodiment of the present invention. The base housing 428 and metal cover member 450 of FIG. 4 can be used in the aforementioned deformable mobile devices 100, 300. In the embodiment of FIG. 4, the metal covering member 450 has a first slot 461, a second slot 462, a third slot 463, and a fourth slot 464. The first slot 461, the second slot 462, the third slot 463, and the fourth slot 464 can each have a substantially straight strip shape, wherein the first slot 461, the second slot 462, and the third slot 463 And the fourth slots 464 can be substantially parallel to each other. The length L5 of the first slot 461, the length L6 of the second slot 462, the length L7 of the third slot 463, and the length L8 of the fourth slot 464 are substantially equal to 0.5 times the wavelength of the operating band of the antenna element 140 ( λ/2). In some embodiments, the length L5 of the first slot 461 is slightly larger than the length L6 of the second slot 462, and the length L7 of the third slot 463 is slightly larger. The length L8 of the fourth slot 464. In other embodiments, the length L5 of the first slot 461 is slightly smaller than the length L6 of the second slot 462, and the length L7 of the third slot 463 is slightly smaller than the length L8 of the fourth slot 464. The design of such more slots can increase the overall resonant bandwidth of the metal cover component 450. It should be noted that, if the fourth embodiment is combined with the embodiment of FIG. 3, the first slot 461 and the second slot 462 may be respectively located on the first metal surface 351 and the second metal surface 352, or the third slot. The aperture 463 and the fourth slot 464 can be located on the first metal face 351 and the second metal face 352, respectively. The remaining features of the base housing 428 and the metal cover member 450 of FIG. 4 are similar to the base housing 128 and the metal cover member 150 of FIG. 2, so that both embodiments can perform similar operational effects.

Figure 5 is a diagram showing an antenna efficiency of an antenna element 140 of a deformable mobile device 100 (or 300) according to an embodiment of the invention, wherein the horizontal axis represents the operating frequency (MHz) and the vertical axis represents Antenna efficiency (dB). In the embodiment of FIG. 5, a first curve CC1 indicates the radiation characteristics of the antenna element 140 when the deformable mobile device 100 does not use any metal covering elements and slots, and a second curve CC2 indicates the deformable mobile device 100. The radiation characteristic of the antenna element 140 when the metal covering member 150 having two slots (as shown in FIG. 2) is used, and a third curve CC3 indicates that the deformable mobile device 100 uses a metal covering member having four slots. The radiation characteristics of the antenna element 140 when 450 (as shown in Figure 4). According to the measurement results of FIG. 5, the antenna efficiency of the original antenna element 140 at the low frequency center point of 2450 MHz is about -5.42 dB (without metal covering elements and slots). After incorporating the solution of the present invention, the metal cover member 150 having two slots can increase the antenna efficiency of the antenna element 140 to about -4.5 dB, while the metal cover member 450 having four slots can provide the antenna element 140. The antenna efficiency has been increased to approximately -4.48 dB, which is already in line with the practical application requirements of general mobile communication devices.

The invention provides a deformable mobile device and a radiation augmenting device, which can effectively overcome the problem of reducing the radiation efficiency of the antenna element in the tablet mode. Therefore, the present invention is well suited for use in various various types of deformable mobile communication devices for improvement. Its communication quality.

It is to be noted that the above-described component sizes, component shapes, and frequency ranges are not limitations of the present invention. The antenna designer can adjust these settings according to different needs. The deformable mobile device and the radiation enhancing device of the present invention are not limited to the state illustrated in Figures 1-5. The present invention may include only any one or more of the features of any one or a plurality of embodiments of Figures 1-5. In other words, not all illustrated features must be simultaneously implemented in the deformable mobile device and radiation enhancing device of the present invention.

The ordinal numbers in this specification and the scope of the patent application, such as "first", "second", "third", etc., have no sequential relationship with each other, and are only used to indicate that two are identical. Different components of the name.

The present invention has been described above with reference to the preferred embodiments thereof, and is not intended to limit the scope of the present invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

Claims (17)

A deformable mobile device comprising: an upper cover comprising an upper cover outer casing and a display frame opposite to the upper cover outer casing; a base comprising a frame and a base outer casing opposite to the frame; a rotating shaft member coupled to the upper cover Between the base and the base, the deformable mobile device can be flipped to operate in a notebook mode or a tablet mode; and an antenna element is disposed on the upper cover, wherein the antenna element is configured to operate in at least one operating band; The base housing includes a metal cover member, and the metal cover member has a first slot and a second slot; wherein the base housing has a structural turn; wherein the metal cover includes a first metal surface and a a second metal surface, wherein the structural turn of the base housing is between the first metal surface and the second metal surface such that an extension plane of the first metal surface and the second metal surface are different; The first slot is located on the first metal surface, and the second slot is located on the second metal surface. The deformable mobile device of claim 1, wherein the antenna element is a slot antenna element disposed on the upper cover housing, and the frame is a keyboard frame. The deformable mobile device of claim 1, wherein the length of the first slot and the length of the second slot are substantially equal to 0.5 times the wavelength of the operating band. The deformable mobile device of claim 1, wherein the length of the first slot is slightly greater than the length of the second slot. The deformable mobile device of claim 1, wherein the first slot and the second slot are each substantially straight. The deformable mobile device of claim 5, wherein the first slot and the second slot are substantially parallel to each other. The deformable mobile device of claim 1, wherein the first slot and the second slot each operate between 2400 MHz and 2500 MHz and between 5150 MHz and 5850 MHz. The deformable mobile device of claim 1, wherein the display frame, the upper cover housing, the base housing, and the frame are sequentially arranged when the deformable mobile device operates in the tablet mode. The antenna element is adjacent to the first slot and the second slot such that the metal cover element and the first slot and the second slot are excited by the antenna element and generate radiation. The deformable mobile device of claim 1, wherein the metal covering element covers part or all of an outer surface of the base housing. The deformable mobile device of claim 1, wherein the structural transition of the base housing is adjacent to the antenna element when the deformable mobile device is operated in the tablet mode. The deformable mobile device of claim 1, wherein the metal covering member further has a third slot and a fourth slot respectively located on the first metal surface and the second metal surface. The deformable mobile device of claim 11, wherein the length of the third slot and the length of the fourth slot are substantially equal to 0.5 times the wavelength of the operating band. The deformable mobile device of claim 11, wherein the length of the third slot is slightly larger than the length of the fourth slot. The deformable mobile device of claim 11, wherein the third slot and the fourth slot are each substantially straight. The deformable mobile device of claim 14, wherein the first slot, the second slot, the third slot, and the fourth slot are substantially parallel to each other. A radiation enhancement device comprising: an antenna element operative in at least one operating frequency band; and a metal covering element having a first slot and a second slot; wherein the length of the first slot and the second slot The length of the hole is substantially equal to 0.5 times the wavelength of the operating band; wherein the antenna element is adjacent to the first slot and the second slot, such that the metal covering element and the first slot and the second slot The aperture is excited by the antenna element and generates radiation; wherein the metal cover element is a portion of a base housing, and the base housing has a structural turn; wherein the metal cover member includes a first metal surface and a first a metal surface, wherein the structural turning portion of the base housing is located between the first metal surface and the second metal surface such that an extension plane of the first metal surface and the second metal surface are different; The first slot is located on the first metal surface, and the second slot is located on the second metal surface. The radiation enhancement device of claim 16, wherein the first slot and the second slot are each substantially straight, and the first slot and the second slot are substantially parallel to each other.