TWI663776B - Protable electronic device and antenna thereof - Google Patents

Abstract

A portable electronic device includes a body and an antenna. The body includes a first housing, a second housing, and a pivot hinge. The antenna includes a first metal layer, a second metal layer, and a balancer. The first metal layer is formed on the first housing and has a first bent side edge, and the second metal layer is formed on the second housing and has a second bent side edge. The second bending side edge and the first bending side edge together form a gradation groove having a constricted end and a flared end. The balancer is disposed in the first housing, the second housing or the pivot hinge, and has a signal input end and a second signal output end. The power balancer receives the feed signal and the ground signal through the signal input terminal to generate a second balanced signal, and outputs the two balanced signals through the two signal output terminals respectively.

Description

Portable electronic device and antenna thereof

The present invention relates to a portable electronic device, and more particularly to a portable electronic device having an antenna.

Today's Internet technology is booming, and the application of the Internet has become inseparable from the lives of modern people, such as knowing news information, connecting with friends and family, recording their own lives, and so on. In response to the demand for personal portable electronic devices, the way of surfing the Internet has evolved from a network route to wireless Internet access. Almost all portable electronic devices, whether notebook computers, personal digital assistants, smart phones, or even digital cameras, They are equipped with wireless Internet access.

In the case of wireless communication technology, the antenna is a key component. At present, antenna designs embedded in portable electronic devices, such as sheet metal stamping antennas or printed circuit board antennas, require the development of metal forming molds in production. The mold opening is not only expensive but also has a long time, and is developed for new products. Cost and time control are very unfavorable. In addition, when the embedded antenna outputs electromagnetic waves from the inside, the radiation field shape is damaged by the surrounding metal components. Therefore, in the design of the casing of the portable device having the antenna, it is often necessary to retain the non-metallic material region. For the embedded antenna to output electromagnetic waves.

In view of the above, the present invention provides a portable electronic device and an antenna thereof.

A portable electronic device according to an embodiment of the invention includes a body and an antenna. The body includes a first housing, a second housing, and a pivot hinge, wherein the pivot hinge is coupled to the first housing and the second housing to enable the first housing to swing relative to the second housing. The antenna is for outputting electromagnetic waves and includes a first metal layer, a second metal layer, and a balancer. The first metal layer is formed on the first casing, and has a first bending side edge and a first feeding position. The second metal layer is formed on the second casing, and has a second bending side edge and a second feeding position. The second bending side edge and the first bending side edge together form a gradation groove, wherein the grading groove has a constricted end and a flared end. The balancer is disposed in the first housing, the second housing or the pivot hinge, and has a signal input end and a second signal output end. The power balancer receives the feed signal and the ground signal through the signal input terminal to generate a second balanced signal, and outputs the two balanced signals through the two signal output terminals respectively. .

An antenna according to an embodiment of the present invention is applicable to a portable electronic device. The antenna includes a first metal layer, a second metal layer, and a power balancer. The first metal layer has a first bending side edge and a first feeding position, and the second metal layer has a second bending side edge and a second feeding position. The second bending side edge and the first bending side edge together form a gradation groove, wherein the grading groove has a constricted end and a flared end. The power converter has a signal input terminal and a second signal output terminal, and receives the feed signal and the ground signal through the signal input terminal, thereby generating a second balanced signal, and outputting the two signals through the two signal output terminals respectively Balance the signal.

With the above structure, the portable electronic device and the antenna thereof disclosed in the present disclosure are respectively disposed in the two housings of the portable electronic device near the corner region of the pivot hinge by the two layers of the housing. The gap formed between the corner area and the pivot hinge serves as a groove for outputting electromagnetic waves. Therefore, in the antenna process of the portable electronic device, there is no need to perform etching of the trench on the metal layer, or design of the trench having the groove. The antenna totem is used for the printing process, eliminating the need for trenching process steps and greatly simplifying the overall process. In addition, since there is no need to provide a groove on the casing, the portable electronic device can also maintain an all-metal casing to enhance its aesthetics.

The above description of the disclosure and the following description of the embodiments of the present invention are intended to illustrate and explain the spirit and principles of the invention, and to provide further explanation of the scope of the invention.

The detailed features and advantages of the present invention are set forth in the Detailed Description of the Detailed Description of the <RTIgt; </ RTI> <RTIgt; </ RTI> </ RTI> </ RTI> <RTIgt; The objects and advantages associated with the present invention can be readily understood by those skilled in the art. The following examples are intended to describe the present invention in further detail, but are not intended to limit the scope of the invention.

1A and 1B, FIG. 1A is a schematic structural diagram of an antenna suitable for a portable electronic device according to an embodiment of the invention; FIG. 1B is applicable to another embodiment of the present invention. Schematic diagram of the architecture of the antenna of the portable electronic device. In the embodiment shown in FIGS. 1A and 1B, the antennas 1 and 1' are suitable for a portable electronic device, such as a notebook computer, wherein the antenna 1 or 1' is disposed at a detailed position of the portable electronic device. description.

As shown in FIG. 1A, the antenna 1 includes a first metal layer 11a, a second metal layer 11b, and a power balancer 13. The first metal layer 11a has a first bending side edge 111a and a first feeding position 113a, and the second metal layer 11b has a second bending side edge 111b and a second feeding position 113b, wherein the first metal layer 11a A tapered groove 115 having a constricted end 1151 and a flared end 1153 is formed together between the first bent side edge 111a and the second bent side edge 111b of the second metal layer 11b. In detail, the first bending side edge 111a and the second bending side edge 111b may respectively be two convex arc edges, and the gradation groove 115 is formed by the opposite arrangement of the two convex arc edges. In addition, the first bending side edge 111a and the second bending side edge 111b may also have side edges of a plurality of bending portions, the detailed implementation of which will be described later.

The power balancer 13 is, for example, a balun transformer having a signal input terminal 131 and two signal output terminals 133a and 133b. The signal input terminal 131 is configured to receive the feed signal and the ground signal. In detail, the signal input terminal 131 can be electrically connected to a coaxial cable. The coaxial cable includes at least a wire, an insulating layer surrounding the covered wire, and a conductive layer outside the insulating layer, wherein the wire transmits the feed signal and the conductive layer transmits the ground signal to the balancer 13. The balancer 13 generates a two-way balanced signal according to the feed signal and the ground signal from the coaxial cable, and outputs the two balanced signals through the signal output terminals 133a and 133b, respectively. In detail, the two balanced signals have the same amplitude and are 180 degrees out of phase with each other.

In another embodiment, as shown in FIG. 1B, the antenna 1' is the same as the antenna 1 shown in FIG. 1A, and includes a first metal layer 11a, a second metal layer 11b and a power balancer 13, wherein the detailed structure of each of the above components The connection relationship with each other is the same as that of the embodiment of FIG. 1A, and details are not described herein again. In this embodiment, in addition to the above elements, the antenna 1' further includes an adjustment circuit 15. The adjustment circuit 15 has a first side 151 and a second side 153. The first side 151 is electrically connected to the two signal output ends 133a and 133b of the balancer 13, and the second side 153 is electrically connected to the first metal layer. The first feed position 113a of the 11a and the second feed position 113b of the second metal layer 11b. The two signal output ends 133a and 133b of the balancer 13 are electrically connected to the first feeding position 113a of the first metal layer 11a and the second feeding position 113b of the second metal layer 11b through the adjusting circuit 15, respectively.

In detail, the adjustment circuit 15 includes two impedance matching circuits 155a and 155b. The impedance matching circuits 155a and 155b each have a first end and a second end, wherein the first ends of the impedance matching circuits 155a and 155b constitute the first side 151 of the adjusting circuit 15, and the second ends of the impedance matching circuits 155a and 155b are adjusted. The second side 153 of the circuit 15. The first ends of the impedance matching circuits 155a and 155b are respectively connected to the two signal output ends 133a and 133b of the power balancer 13, and the second ends of the impedance matching circuits 155a and 155b are respectively connected to the first feed of the first metal layer 11a. The position 113a and the second feeding position 113b of the second metal layer 11b. In other words, the signal output end 133a of the balancer 13 is connected to the first feed position 113a of the first metal layer 11a through the impedance matching circuit 155a, and the signal output end 133b is connected to the second metal layer 11b through the impedance matching circuit 155b. The second feed position 113b.

The impedance matching circuits 155a and 155b are for matching the characteristic impedance of the signal terminal of the antenna 1' with the impedance of the load terminal. In other words, the impedance matching circuit 157 can match the characteristic impedance of the side connected to the balancer 13 to the impedance connected to the side of the first and second metal layers 11a and 11b to adjust the electrical signal of the antenna 1' as a whole. For example, the impedance matching circuits 155a and 155b are each a π-type circuit, the impedance matching circuit 155a has an inductance L1a and two capacitances C1a and C2a, and the impedance matching circuit 155b has an inductance L1b and two capacitances C1b and C2b, wherein each component The detailed connection relationship is a general knowledge in the field to which the present invention pertains, and will not be described herein. In still another embodiment, the adjustment circuit 15 may further include a phase adjustment circuit for adjusting a phase difference between the feed signal and the ground signal, thereby generating electromagnetic waves having different wave speeds or directivity.

The process of generating and outputting electromagnetic waves by the antennas 1 and 1' in the above embodiment will be described in detail below. The power balancer 13 simultaneously receives the feed signal and the ground signal from the coaxial cable to generate the two balanced signals, and then outputs the two balanced signals to the first metal layer 11a and the second metal layer through the two signal output ends 133a and 133b, respectively. 11b, or the second balanced signal is first transmitted through the adjustment circuit 15 and then transferred to the first metal layer 11a and the second metal layer 11b; then, the first metal layer 11a and the second metal layer 11b are received according to the received signal. An electromagnetic wave is generated, and the electromagnetic wave is output through the gradation groove 115. In particular, the tapered structure between the constricted end 1151 of the tapered trench 115 and the flared end 1153 is similar to the structure of a Vivaldi antenna.

Please refer to FIG. 1A, FIG. 1B and FIG. 2, which are schematic diagrams of a portable electronic device according to an embodiment of the invention.

In the embodiment shown in FIG. 2, the portable electronic device 5 includes the body 2 and the antenna 1 in the embodiment shown in FIG. 1A. It should be noted that the portable electronic device 5 may also include the body 2 and the antenna 1' shown in FIG. 1B, and FIG. 2 is only exemplarily shown. The portable electronic device 5 is, for example, a notebook computer or other electronic device having a clamshell structure. In this embodiment, a notebook computer is used as the portable electronic device 5, and the portable electronic device 5 is used as an example. The main body 2 includes a first housing 21a, a second housing 21b and a pivot hinge 23. The main body 2 also includes components of a general notebook computer, such as a central processing unit, a memory, etc., The details should be the general knowledge in the field and will not be repeated here. The pivot hinge 23 of the body 2 is coupled to the first housing 21a and the second housing 21b for the first housing 21a to swing relative to the second housing 21b.

The antenna 1 includes the first metal layer 11a, the second metal layer 11b and the power balancer 13 as described in the foregoing embodiment of FIG. 1A, wherein the detailed structure of each component and circuit and the connection relationship between them are the same as those of the foregoing FIG. 1A. The embodiment is not described here. As shown in FIG. 2, the antenna 1 can be disposed in a surrounding area of the pivot hinge 23 of the portable electronic device 5. The balancer 13 of the antenna 1 may be disposed in the first housing 21a, the second housing 21b, or the pivot hinge 23. In this embodiment, the first metal layer 11a is formed on the first housing 21a, in particular, the first housing 21a is adjacent to the corner region 211a of the pivot hinge 23; the second metal layer 11b is formed in the second housing 21b. In particular, the second housing 21b is adjacent to the corner region 211b of the pivot hinge 23; wherein the corner regions 211a and 211b are located on the same side of the portable electronic device 5. In another embodiment, the first metal layer 11a is a first housing 21a made of metal, such as a metal upper cover of a notebook computer, and the second metal layer 11b is also a second housing made of metal. 21b, for example, an outer layer of a metal base of a notebook computer.

Referring to FIG. 1A, FIG. 2 and FIG. 3A to FIG. 3C, FIG. 3A is a partial schematic view of a portable electronic device according to an embodiment of the present invention; FIG. A partial schematic diagram of a portable electronic device according to another embodiment; FIG. 3C is a partial schematic view of a portable electronic device according to another embodiment of the present invention.

As shown in FIG. 3A, the balancer 13 of the antenna 1a is disposed in the pivot hinge 23, and transmits signals to the first metal layer 11a and the second metal layer 11b through the wires, respectively. The first bending side edge 111a of the first metal layer 11a is aligned with the corner of the first housing 21a of the portable electronic device body 2, and the second bending side edge 111b of the second metal layer 11b is aligned with The corner of the second housing 21b of the portable electronic device body 2. In this embodiment, the corners of the portable electronic device body 2 are rounded corners commonly found in notebook computers, and therefore, the first bent side edges 111a of the corners of the first housing 21a are aligned and affixed. The second bending side edges 111b of the second housing 21b are all convex arc edges, and a gradient groove 115 is formed between the two convex arc edges. That is, the gradation groove 115 refers to a gap formed between the corner of the first housing 21a, the pivot hinge 23, and the corner of the second housing 21b, which is similar to the groove in the Weiwadi antenna. Slot structure. Therefore, in this embodiment, by using the gap as the groove for outputting electromagnetic waves, the process of the trench can be eliminated, and the overall process of the portable electronic device 5 can be simplified. In addition, since it is not necessary to provide a groove on the casing, the portable electronic device 5 can retain an all-metal casing to enhance its aesthetic appearance.

Similar to the antenna 1a shown in FIG. 3A, in another embodiment shown in FIG. 3B, the balancer 13 of the antenna 1b is disposed in the pivot hinge 23, and transmits signals to the first metal layer 11a' and the first through the wires respectively. Two metal layers 11b'. The first bending side edge 111a' of the first metal layer 11a is aligned with the corner of the first housing 21a' of the portable electronic device body 2', and the second bending side edge of the second metal layer 11b' 111b' is attached to a corner of the second housing 21b' of the body 2' of the portable electronic device. The difference between this embodiment and the embodiment of FIG. 3A is that the corners of the portable electronic device body 2 ′ have a plurality of ribs. Therefore, the first bending side edge 111 a ′ and the second bending side edge 111 b ′ respectively have Side edges of multiple bends. As in the previous embodiment, in this embodiment, the gap formed between the corners of the first housing 21a', the pivot hinge 23 and the corner of the second housing 21b' is used as the gradient groove 115. '. In particular, the first bending side edge 111a' and the second bending side edge 111b' having a plurality of bends in the present invention, the angle of turning away from the pivot hinge 23 and the turning point The number of times can be designed according to the actual required antenna characteristics, and is not limited to the embodiment shown in FIG. 3B.

In still another embodiment, as shown in FIG. 3C, the first bent side edge 111a" of the first metal layer 11a" of the antenna 1c has a gap with the corner of the first casing 21a", and the second metal layer 11b There is also a gap between the second bent side edge 111b of the second housing 21b" and the corner of the second housing 21b". This embodiment is also applicable to the first bent side edge 111a" and the second bent side edge 111b" having a plurality of bends. In this embodiment, as in the above embodiment, there is no need to perform a trench etching process on the metal layer, or design a trenched antenna totem to perform a printing process, which greatly simplifies the overall process.

In particular, in the above embodiments of FIG. 3A to FIG. 3C , the first metal layers 11 a , 11 a ′ and 11 a ′′ and the second metal layers 11 b , 11 b ′ and 11 b ′′ are respectively exemplarily located. a housing 21a, 21a' and 21a" and a corner region of the second housing 21b, 21b' and 21b", however, the area and the position of the first metal layer and the second metal layer can be designed according to actual process requirements The first metal layer and the second metal layer may also respectively cover the entire first casing and the second casing, for example, a metal upper cover outer layer and a base outer layer of the notebook computer. In addition, the first metal layer may be disposed between the outer cover of the notebook computer or the inner side of the upper cover (ie, the screen setting side), and the second metal layer may be disposed outside the base of the notebook computer and outside the base of the notebook computer. The present invention is not limited to the inner side (i.e., the keyboard setting side) or the inner side of the bottom cover.

Referring to FIG. 1B, FIG. 4A and FIG. 4B, FIG. 4A and FIG. 4B are respectively partial schematic views of the portable electronic device according to the second embodiment of the present invention. In the embodiment shown in FIG. 4A and FIG. 4B, the antenna 1' includes a first metal layer 11a, a second metal layer 11b, a power balancer 13 and an adjustment circuit 15, wherein the detailed structure of each component and circuit and the connection between each other The relationship is the same as that of the foregoing embodiment of FIG. 1B, and details are not described herein again. In the embodiment shown in FIG. 4A, the power balancer 13 and the adjustment circuit 15 of the antenna 1' are disposed in the pivot hinge 23 of the portable electronic device; and in the embodiment shown in FIG. 4B, the power balancer 13 and The adjustment circuit 15 is disposed in the first housing 21a or the second housing 21b. In fact, the balancer 13 and the adjustment circuit 15 can be disposed on the first housing 21a, the second housing 21b or the pivot hinge 23 at the same time, or can be respectively disposed on the first housing 21a, the second housing 21b and the pivot Both of the hinges 23 are turned. In the embodiment shown in FIG. 4A and FIG. 4B, the first metal layer 11a is formed in a corner region of the first housing 21a close to the pivot hinge 23, and the second metal layer 11b is formed in the second housing 21b near the pivot. a corner region of the hinge 23, wherein the shape, arrangement, and corresponding effects of the first bent side edge 111a of the first metal layer 11a and the second bent side edge 111b of the second metal layer 11b are the same as those of the above FIG. 3A The embodiment is therefore not described again. In addition, the first metal layer 11a and the second metal layer 11b of the antenna 1' may be implemented in the shape and arrangement shown in FIG. 3B or FIG. 3C, and details are not described herein again.

With the above structure, the portable electronic device and the antenna thereof disclosed in the present disclosure are respectively disposed in the two housings of the portable electronic device near the corner region of the pivot hinge by the two layers of the housing. The gap formed between the corner area and the pivot hinge serves as a groove for outputting electromagnetic waves. Therefore, in the antenna process of the portable electronic device, there is no need to perform etching of the trench on the metal layer, or design of the trench having the groove. The antenna totem is used for the printing process, eliminating the need for trenching process steps and greatly simplifying the overall process. In addition, since there is no need to provide a groove on the casing, the portable electronic device can also maintain an all-metal casing to enhance its aesthetics.

Although the present invention has been disclosed above in the foregoing embodiments, it is not intended to limit the invention. It is within the scope of the invention to be modified and modified without departing from the spirit and scope of the invention. Please refer to the attached patent application for the scope of protection defined by the present invention.

1, 1', 1a, 1b, 1c‧‧‧ antenna

11a, 11a’, 11a”‧‧‧ first metal layer

11b, 11b’, 11b”‧‧‧ second metal layer

111a, 111a’‧‧‧ first bend side edge

111b, 111b’‧‧‧ second bending side edge

113a‧‧‧first feeding position

113b‧‧‧second feed position

115‧‧‧graded trench

1151‧‧‧ shrink end

1153‧‧‧ flared end

13‧‧‧balancer

131‧‧‧Signal input

133a, 133b‧‧‧ signal output

15‧‧‧Adjustment circuit

151‧‧‧ first side

153‧‧‧ second side

155a, 155b‧‧‧ impedance matching circuit

L1a, L1b‧‧‧ inductance

C1a, C2a, C1b, C2b‧‧‧ capacitors

5‧‧‧Portable electronic devices

2‧‧‧ Ontology

21a, 21a’, 21a”‧‧‧ first housing

21b, 21b’, 21b”‧‧‧ second housing

23‧‧‧ pivot hinge

211a, 211b‧‧‧ corner area

1A is a schematic structural diagram of an antenna suitable for a portable electronic device according to an embodiment of the invention. FIG. 1B is a schematic structural diagram of an antenna suitable for a portable electronic device according to another embodiment of the present invention. FIG. 2 is a schematic diagram of a portable electronic device according to an embodiment of the invention. 3A is a partial schematic view of a portable electronic device according to an embodiment of the invention. FIG. 3B is a partial schematic diagram of a portable electronic device according to another embodiment of the invention. FIG. 3C is a partial schematic view of a portable electronic device according to another embodiment of the invention. 4A is a partial schematic view of a portable electronic device according to another embodiment of the invention. 4B is a partial schematic view of a portable electronic device according to another embodiment of the invention.

Claims (8)

A portable electronic device includes: a body, a first housing, a second housing, and a pivot hinge, the pivot hinge being coupled to the first housing and the second housing for The first housing can swing relative to the second housing; an antenna for outputting an electromagnetic wave, comprising: a first metal layer having a first bending side edge and a first feeding position; and a second a metal layer having a second bending side edge and a second feeding position, wherein the second bending side edge and the first bending side edge together form a gradation groove, wherein the gradation groove has a a shrinking end and a flared end; and a balancer disposed in the first housing, the second housing or the pivot hinge, and the power exchanger has a signal input end and a second signal output end, The second signal output terminal is respectively connected to the first feed position and the second feed position. The power converter receives a feed signal and a ground signal through the signal input terminal, and generates the signal according to the feed signal and the ground signal. Second balancing the signal, and outputting the two balanced signals respectively through the output terminals of the two signals as well as An adjustment circuit having a first side and a second side, the first side of the adjusting circuit is connected to the two signal output ends, and the second side is connected to the first feeding position and the second feeding position; The first metal layer is formed on the first casing, and the second metal layer is formed in the second casing. The portable electronic device of claim 1, wherein the first bending side edge is aligned with a corner of the first housing, and the second bending side edge is aligned with one side of the second housing angle. The portable electronic device of claim 1, wherein the first bending side edge and the second bending side edge respectively have two convex arc edges, and the gradient groove is oppositely disposed by the two convex arc edges. Formed. The portable electronic device of claim 1, wherein the adjustment circuit is disposed in the first housing, the second housing or the pivot hinge. The portable electronic device of claim 1, wherein the adjustment circuit comprises a two-impedance matching circuit for performing impedance matching of the antenna. An antenna for a portable electronic device, the antenna comprising: a first metal layer having a first bending side edge and a first feeding position; a second metal layer having a second bending side edge and a second feeding position, wherein the second bending side edge and the first bending side edge together form a gradation groove, wherein the gradual groove The slot has a constricted end and a flared end; a balancer having a signal input end and a second signal output end, the balancer receiving a feed signal and a ground signal via the signal input end, according to the feed The signal and the ground signal generate a second balanced signal, and the output terminal is used to output the two balanced signals respectively; and an adjusting circuit has a first side and a second side, and the first side of the adjusting circuit is connected And at the second signal output end, the second side is connected to the first feeding position and the second feeding position. The antenna of claim 6, wherein the first bending side edge and the second bending side edge respectively have two convex arc edges, and the gradient groove is formed by the opposite arrangement of the two convex arc edges. The antenna of claim 6, further comprising an adjustment circuit having a first side and a second side, the first side of the adjustment circuit being coupled to the second signal output end, and the second side being coupled to the first Feeding position and the second feeding position.