TWI411161B - A five - frequency antenna for portable electronic devices - Google Patents

Abstract

The present invention relates to an antenna with five frequency bands for portable electronic device and, more particularly, to an antenna with five frequency bands for portable electronic device which has a simplified structure and low manufacturing cost and can be applied in a wireless wide area network. The antenna includes: a substrate having an upper surface; a first radiation micro-strip part having a first vertical extension section, a first horizontal extension section and a second vertical extension section; a second radiation micro-strip part having a horizontal radiation section and a vertical radiation section; a grounding micro-strip part and a grounding metal part, wherein the grounding metal part is disposed at one edge of the substrate and is vertical with the substrate. In addition, the first radiation micro-strip part, the second radiation micro-strip part and the grounding micro-strip part are independently arranged on the upper surface of the substrate, and the grounding micro-strip part is coupled to the grounding metal part.

Description

Five-frequency antenna for portable electronic device

The present invention relates to a five-band antenna of a portable electronic device, and more particularly to a five-band antenna having a simpler structure and lower manufacturing cost, and applicable to a portable electronic device in a wireless wide area network.

As the market demand changes, the widely used small area wireless local area network (WLAN) can no longer meet the needs of consumers, because users must obtain fixed locations, such as wireless network hotspots. Stable signal strength. Once the user has the need to use the Internet, such as using a wireless network in the car, the portable electronic device used by the user will quickly enter and leave the service area of the different wireless local area network, that is, frequently Switching between service areas of different wireless local area networks. Switching frequently between service areas of different wireless local area networks often results in signal disconnection. Therefore, another wireless network service, namely wireless wide area network, has been vigorously developed and gradually used in the field of wireless Internet applications of portable electronic devices.

As shown in FIG. 1 , the five-frequency antenna of the portable electronic device includes a first radiation microstrip portion 11 , a second radiation microstrip portion 12 , a first ground microstrip portion 13 , and a connecting metal microstrip a portion 14, a second grounded microstrip portion 15 and a support unit 16. The first radiation microstrip portion 11 and the second radiation microstrip portion 12 are both located on the upper side of the support unit 16, but are respectively located at both ends of the support unit 16. In addition, the first grounding microstrip portion 13 and the second grounding microstrip portion 15 respectively The two ends of the support unit 16 are respectively provided with a fixing hole 131 and a fixing hole 131 for fixing the five-frequency antenna of the portable electronic device to the portable electronic device to which the portable electronic device is applied. In addition to this, the connection metal microstrip portion 14 is connected to the first radiation microstrip portion 11 and the first ground microstrip portion 13, respectively, and has an L-shaped outer shape.

As can be seen from FIG. 1, the structure of the five-frequency antenna of the portable electronic device is quite complicated, and each component is a three-dimensional member. Therefore, the manufacturing process of the five-frequency antenna of the portable electronic device is quite complicated, because each component needs to be accurately manufactured first, and the size cannot be too large. Then, through careful positioning procedures, each component is combined in a specific relationship to complete the manufacturing process of the five-frequency antenna of the portable electronic device. Moreover, once the relative relationship between the various components changes, such as the displacement caused by the collision of the antenna, the performance of the five-frequency antenna of the portable electronic device transmitting or receiving a high-frequency signal will be significantly degraded. That is to say, the five-frequency antenna of the portable electronic device of the prior art not only has a complicated manufacturing procedure, but also cannot effectively reduce the manufacturing cost.

Therefore, the industry needs a five-band antenna with a simpler structure and lower manufacturing cost, and can be applied to a portable electronic device of a wireless wide area network.

The main object of the present invention is to provide a five-band antenna for a portable electronic device, which has a relatively simple structure and a low manufacturing cost.

Another object of the present invention is to provide a five-band antenna for a portable electronic device, which can be applied to a Wireless Wide Area Network (WWAN).

To achieve the above objective, the five-frequency antenna of the portable electronic device of the present invention comprises: a substrate having an upper surface; and a first radiation microstrip portion having a first vertical extension and a first level. An extension section and a second vertical extension section, wherein the first horizontal extension section is coupled to the first vertical extension section and the second vertical extension section, respectively, wherein the end of the second vertical extension section is a signal feed a second radiating microstrip portion having a horizontal radiating section and a vertical radiating section, wherein the horizontal radiating section and the vertical radiating section are coupled to each other; a grounded microstrip portion; and a grounded metal portion One side edge of the substrate, and the grounded metal portion is perpendicular to the substrate. The first radiating microstrip portion, the second radiating microstrip portion, and the grounded microstrip portion are each independently disposed on an upper surface of the substrate, and the grounded metal portion is coupled to the grounded microstrip portion; The horizontal radiating section of the second radiating microstrip portion is located between the first horizontal extension of the first radiating microstrip portion and the grounded metal portion, and the vertical radiating portion of the second radiating microstrip portion is located in the first radiating portion a second vertical extension of the microstrip portion and the grounded microstrip portion; the vertical radiating portion of the second radiating microstrip portion extends from the horizontal radiating portion to the other side edge of the substrate opposite to the grounded metal portion, The grounded microstrip portion extends from the grounded metal portion to the other side edge of the substrate relative to the grounded metal portion.

Therefore, the main components of the five-frequency antenna of the portable electronic device of the present invention (the first radiating microstrip portion, the second radiating microstrip portion, and the grounded microstrip portion) The device is disposed on a substrate, and the component (ground metal portion) is connected to the substrate. Therefore, the five-frequency antenna of the portable electronic device of the present invention can be patterned in a relatively simple manner. A copper foil layer of the FR-4 material substrate rapidly and accurately forms its main components (the first radiation microstrip portion, the second radiation microstrip portion, and the grounded microstrip portion) on the surface of the substrate, and only A rectangular copper piece as a grounded metal portion is further connected to the substrate to manufacture a five-frequency antenna for carrying out the portable electronic device of the present invention. In this way, the manufacturing cost of the five-band antenna of the portable electronic device of the present invention can be reduced, and the precise positioning procedure involved in the manufacturing process of the five-frequency antenna of the portable electronic device can be avoided. On the other hand, since the five-band antenna of the portable electronic device of the present invention can transmit or receive a high frequency signal in a frequency band between 806 MHz and 965 MHz and a frequency band between 1665 MHz and 2310 MHz, the present invention The portable electronic device can transmit or receive a high frequency signal in the GSM 850 specification band, the GSM 900 specification band, the DCS specification band, the PCS specification band or the UMTS specification band, and the fifth of the portable electronic device of the present invention The frequency antenna can be applied to a Wireless Wide Area Network (WWAN).

As shown in FIG. 2A, a five-band antenna of a portable electronic device according to an embodiment of the present invention includes: a substrate 21, a first radiating microstrip portion 22, a second radiating microstrip portion 23, and a grounded microstrip. The portion 24 and a grounded metal portion 25. The substrate 21 has an upper surface 211, and the first radiating microstrip portion 22, the second radiating microstrip portion 23, and the grounded microstrip portion 24 are independently disposed on the substrate 21 Upper surface 211. In addition, the grounding metal portion 25 is located on one side edge 212 of the substrate 21 and coupled to the ground microstrip portion 24, and the grounded metal portion 25 is perpendicular to the substrate 21.

As shown in FIG. 2A, the first radiating microstrip portion 22 has a first vertical extending portion 221, a first horizontal extending portion 222, and a second vertical extending portion 223, and the first horizontally extending portion 222 is respectively A vertical extension 221 and a second vertical extension 223 are coupled to each other, wherein the end of the second vertical extension 223 serves as a signal feed point. In addition, the second radiating microstrip portion 23 has a horizontal radiating section 231 and a vertical radiating section 232, and the horizontal radiating section 231 and the vertical radiating section 232 are coupled to each other, and the vertical radiating section 232 extends from the horizontal radiating section 231 to the substrate. 21 is opposite to the other side edge 213 of the grounded metal portion 25. In addition, the second vertical extension 223 of the first radiating microstrip portion 22 extends from the first horizontally extending portion 222 in a direction away from the horizontal radiating portion 231 of the second radiating microstrip portion 23.

As shown in FIG. 2A, the horizontal radiating section 231 of the second radiating microstrip portion 23 is located between the first horizontal extending portion 222 of the first radiating microstrip portion 22 and the grounded metal portion 25, and the second radiating microstrip portion 23 is The vertical radiant section 232 is then located between the second vertical extension 223 of the first radiating microstrip portion 22 and the grounded microstrip portion 24. Further, the ground microstrip portion 24 extends from the ground metal portion 25 to the other side edge 213 of the substrate 21 with respect to the ground metal portion 25.

In the present embodiment, the substrate 21 is a rectangular substrate of FR-4 material having a size of 60 mm (length) X 8 mm (width) X 0.4 mm (thickness) and a dielectric constant of 4.4. Further, the aforementioned ground metal portion 25 is a rectangular copper piece having a size of 60 mm (length) X 4 mm (width) X 0.2. Mm (thickness), and the long side of the rectangular copper piece (i.e., the side having a length of 60 mm) is interconnected with the long side of the aforementioned rectangular substrate. In addition, the ground microstrip portion 24 has a size of 8 mm (length) X 4 mm (width), and the ground microstrip portion 24 has its short side (i.e., a side having a width of 4 mm) and the grounded metal portion 25 The long sides (ie, the sides having a length of 60 mm) are coupled to each other.

In this embodiment, the materials of the first radiating microstrip portion 22, the second radiating microstrip portion 23, and the grounded microstrip portion 24 are all copper foils, wherein the width of the first radiating microstrip portion 22 is 0.5 mm, The width of the second radiating microstrip is 1 mm. In addition, the first vertical extension 221 of the first radiation microstrip portion 22 is separated from the horizontal radiation segment 231 of the second radiation microstrip portion 23 by a gap of 0.5 mm in width, and the first level of the first radiation microstrip portion 22 is The extension 222 is spaced apart from the horizontal radiant section 231 of the second radiating microstrip portion 23 by a gap having a width of 0.5 mm. In addition, the horizontal radiating section 231 of the second radiating microstrip portion 23 is separated from the long side of the grounding metal portion 25 to the substrate 21 (i.e., the side having a length of 60 mm) by a gap of 0.5 mm in width. The horizontal radiating section 231 of the second radiating microstrip portion 23 is spaced apart from the other side edge 213 of the substrate 21 with respect to the grounded metal portion 25 by a gap of 6 mm in width.

As shown in FIG. 2B, those numbers for indicating the dimensions of the respective constituents of the substrate 21, the first radiation microstrip portion 22, the second radiation microstrip portion 23, the ground microstrip portion 24, and the ground metal portion 25 are shown. The dimensions represented are shown in the following list 1:

As shown in FIG. 2A, the five-band antenna of the portable electronic device according to an embodiment of the present invention may further include a grounding plate 26 disposed on the other side edge 213 of the substrate 21 with respect to the grounding metal portion 25, and The grounded microstrip portion 24 is coupled to the aforementioned ground. In addition, the ground plate 26 is also coupled to the vertical radiating section 232 of the second radiating microstrip portion 23. In the present embodiment, the ground plate 26 has a size of 260 mm (length) X 200 mm (width) and is made of metal.

In this embodiment, the five-band antenna of the portable electronic device can be applied to any type of portable electronic device, including but not limited to a notebook computer, a personal digital assistant (PDA), or a Mobile phone.

3A is a return loss frequency response diagram of a five-band antenna of a portable electronic device according to an embodiment of the present invention, and FIG. 3B is a voltage station of a five-band antenna of the portable electronic device according to an embodiment of the invention. Wave ratio (VSWR) frequency response plot, both measured actually. As shown in FIG. 3A, the five-band antenna of the portable electronic device according to an embodiment of the present invention has a return loss of less than -3 dB in a frequency band between 0.8 GHz and 0.9 GHz. On the other hand, as shown in FIG. 3B, the five-band antenna of the portable electronic device according to an embodiment of the present invention has a frequency band between 0.8 GHz and 0.9 GHz and another frequency band between 1.7 GHz and 2.2 GHz. Inside, each has a voltage standing wave ratio of less than 3, showing the present The five-band antenna of the portable electronic device according to the embodiment of the invention can efficiently transmit or receive a high frequency signal in the two frequency bands.

Therefore, since the five-band antenna of the portable electronic device according to an embodiment of the present invention can transmit or receive a high frequency signal in a frequency band between 806 MHz and 965 MHz and another frequency band between 1665 MHz and 2310 MHz, The portable electronic device according to an embodiment of the present invention can transmit or receive a high frequency signal in the GSM 850 specification band, the GSM 900 specification band, the DCS specification band, the PCS specification band, or the UMTS specification band. As such, the five-band antenna of the portable electronic device in one embodiment of the present invention can be applied to a wireless wide area network (WWAN).

As shown in FIG. 4A, a five-band antenna of a portable electronic device according to another embodiment of the present invention includes: a substrate 41, a first radiating microstrip portion 42, a second radiating microstrip portion 43, and a grounding micro The belt portion 44 and a grounded metal portion 45. The substrate 41 has an upper surface 411, and the first radiation microstrip portion 42, the second radiation microstrip portion 43, and the ground microstrip portion 44 are independently disposed on the upper surface 411 of the substrate 41. In addition, the ground metal portion 45 is located on one side edge 412 of the substrate 41 and coupled to the ground microstrip portion 44, and the ground metal portion 45 is perpendicular to the substrate 41.

As shown in FIG. 4A, the first radiating microstrip portion 42 has a first vertical extending portion 421, a first horizontal extending portion 422, a second vertical extending portion 423, and a second horizontal extending portion 424, wherein the first level The extensions 422 are coupled to the first vertical extension 421 and the second vertical extension 423, respectively. In addition, the second radiating microstrip portion 43 has a horizontal radiating section 431 and a vertical radiating section 432, and the horizontal radiating section 431 and the vertical radiating section 432 are coupled to each other. The vertical radiating section 432 extends from the horizontal radiating section 431 to the other side edge 413 of the substrate 41 with respect to the grounded metal portion 45. In addition, the second vertical extension 423 of the first radiating microstrip portion 42 extends from the first horizontally extending portion 422 in a direction away from the horizontal radiating portion 431 of the second radiating microstrip portion 43, the first radiation micro The second horizontal extension 424 of the strap portion 42 extends from the end of the second vertical extension 423 away from the first horizontal extension 422 toward the vertical radiant section 432 of the second radiating microstrip portion 43.

As shown in FIG. 4A, the horizontal radiating section 431 of the second radiating microstrip portion 43 is located between the first horizontal extending portion 422 of the first radiating microstrip portion 42 and the grounded metal portion 45, and the second radiating microstrip portion 43 is further disposed. The vertical radiant section 432 is then located between the second vertical extension 423 of the first radiating microstrip portion 42 and the grounded microstrip portion 44. Further, the ground microstrip portion 44 extends from the ground metal portion 45 to the other side edge 413 of the substrate 41 with respect to the ground metal portion 45.

In the present embodiment, the substrate 41 is a rectangular substrate of FR-4 material having a size of 60 mm (length) X 8 mm (width) X 0.4 mm (thickness) and a dielectric constant of 4.4. In addition, the aforementioned ground metal portion 45 is a rectangular copper piece having a size of 60 mm (length) X 4 mm (width) X 0.2 mm (thickness), and the long side of the rectangular copper piece (ie having 60 mm) The sides of the length are interconnected with the long sides of the aforementioned rectangular substrate. In addition, the ground microstrip portion 44 has a size of 8 mm (length) X 4 mm (width), and the ground microstrip portion 44 has its short side (ie, a side having a width of 4 mm) and the grounded metal portion 45. The long sides (ie, the sides having a length of 60 mm) are coupled to each other.

In this embodiment, the materials of the first radiating microstrip portion 42, the second radiating microstrip portion 43 and the grounded microstrip portion 44 are all copper foil, wherein the first radiating microstrip The width of the portion 42 is 0.5 mm, and the width of the second radiating microstrip portion is 1 mm. In addition, the first vertical extension 421 of the first radiation microstrip portion 42 is separated from the horizontal radiation segment 431 of the second radiation microstrip portion 43 by a gap having a width of 0.5 mm, and the first level of the first radiation microstrip portion 42 is The extension 422 is spaced apart from the horizontal radiant section 431 of the second radiating microstrip portion 43 by a gap having a width of 0.5 mm. In addition, the horizontal radiating section 431 of the second radiating microstrip portion 43 is separated from the long side of the grounding metal portion 45 to the substrate 41 (i.e., the side having a length of 60 mm) by a gap of 0.5 mm in width. The horizontal radiating section 431 of the second radiating microstrip portion 43 is spaced apart from the other side edge 413 of the substrate 41 with respect to the ground metal portion 45 by a gap of 6 mm in width.

As shown in FIG. 4B, those numbers for displaying the dimensions of the respective components of the substrate 41, the first radiation microstrip portion 42, the second radiation microstrip portion 43, the ground microstrip portion 44, and the ground metal portion 45 are shown. The dimensions represented are shown in the following list 2:

As shown in FIG. 4A, the five-band antenna of the portable electronic device according to another embodiment of the present invention may further include a grounding plate 46, which is located on the opposite side of the substrate 41. The other side edge 413 of the grounded metal portion 45 is coupled to the grounded microstrip portion 44 described above. In addition, the ground plate 46 is also coupled to the vertical radiating section 432 of the second radiating microstrip portion 43. In the present embodiment, the size of the ground plate 46 is 260 mm (length) X 200 mm (width). In the present embodiment, the ground plate 26 has a size of 260 mm (length) X 200 mm (width) and is made of metal.

In this embodiment, the five-band antenna of the portable electronic device can be applied to any type of portable electronic device, including but not limited to a notebook computer, a personal digital assistant (PDA), or a Mobile phone.

5A is a return loss frequency response diagram of a five-band antenna of a portable electronic device according to another embodiment of the present invention, and FIG. 5B is a five-frequency antenna of the portable electronic device according to another embodiment of the present invention. Voltage standing wave ratio (VSWR) frequency response map, both measured actually. As shown in FIG. 5A, the five-band antenna of the portable electronic device according to another embodiment of the present invention has a return loss of less than -3 dB in a frequency band between 0.8 GHz and 0.9 GHz. On the other hand, as shown in FIG. 5B, the five-band antenna of the portable electronic device according to another embodiment of the present invention has a frequency band between 0.82 GHz and 0.94 GHz and another between 1.7 GHz and 2.2 GHz. In the frequency band, the voltage standing wave ratio of less than 3 is displayed, and the five-band antenna of the portable electronic device according to another embodiment of the present invention can be efficiently transmitted or received in the two frequency bands. A high frequency signal.

In addition, FIG. 5C is a radiation efficiency frequency response of a five-band antenna of a portable electronic device according to another embodiment of the present invention. The figure is obtained by simulation of Ansoft HFSS software. As can be seen from FIG. 5C, the five-band antenna of the portable electronic device according to another embodiment of the present invention is in a low frequency band (such as a frequency range of 806 MHz to 965 MHz) or a high frequency band (such as a distance between 1665 MHz and 2310). The frequency band of MHz) is higher than 75%, and the higher the frequency, the higher the radiation efficiency, even close to 90%. FIG. 5D is a gain frequency response diagram of a five-band antenna of a portable electronic device according to another embodiment of the present invention, which is actually measured. As shown in FIG. 5D, the five-band antenna of the portable electronic device according to another embodiment of the present invention has a gain of 1.3 dBi to 2 dBi in a low frequency band (such as a frequency range of 806 MHz to 965 MHz). between. In the high frequency band (such as a frequency band between 1665 MHz and 2310 MHz), the portable electronic device of another embodiment of the present invention has a gain of between 1.4 dBi and 2.3 dBi.

Therefore, the five-band antenna of the portable electronic device according to another embodiment of the present invention can transmit or receive a high frequency signal in a frequency band between 806 MHz and 965 MHz and another frequency band between 1665 MHz and 2310 MHz. Therefore, the portable electronic device according to another embodiment of the present invention can transmit or receive a high frequency signal in the GSM 850 specification band, the GSM 900 specification band, the DCS specification band, the PCS specification band, or the UMTS specification band. As such, the five-band antenna of the portable electronic device of another embodiment of the present invention can be applied to a wireless wide area network (WWAN).

In summary, the main components (the first radiating microstrip portion, the second radiating microstrip portion, and the grounded microstrip portion) of the five-band antenna of the portable electronic device of the present invention are disposed on a substrate, and The component (ground metal portion) is connected to the substrate, so the five-frequency antenna of the portable electronic device of the present invention The main component (the first radiating microstrip portion, the second radiating microstrip portion, and the like) can be quickly and accurately obtained by a simpler method of patterning an FR-4 substrate having a copper foil layer on its surface. The grounded microstrip portion is formed on the surface of the substrate, and only a rectangular copper piece as a grounded metal portion is connected to the substrate to manufacture a five-frequency antenna of the portable electronic device of the present invention. In this way, the manufacturing cost of the five-band antenna of the portable electronic device of the present invention can be reduced, and the precise positioning procedure involved in the manufacturing process of the five-frequency antenna of the portable electronic device can be avoided. On the other hand, since the five-band antenna of the portable electronic device of the present invention can transmit or receive a high frequency signal in a frequency band between 806 MHz and 965 MHz and another frequency band between 1665 MHz and 2310 MHz, The portable electronic device of the invention can transmit or receive a high frequency signal in the GSM 850 specification band, the GSM 900 specification band, the DCS specification band, the PCS specification band or the UMTS specification band, and makes the portable electronic device of the present invention The five-band antenna can be applied to a Wireless Wide Area Network (WWAN).

The above-mentioned embodiments are merely examples for convenience of description, and the scope of the claims is intended to be limited to the above embodiments.

11‧‧‧First Radiation Microstrip Department

12‧‧‧Second radiating microstrip

13‧‧‧First grounded microstrip

14‧‧‧Connected metal microstrip

15‧‧‧Second grounded microstrip

16‧‧‧Support unit

21, 41‧‧‧ substrate

22, 42‧‧‧First Radiation Microstrip Department

23, 43‧‧‧second radiation microstrip

24, 44‧‧‧ Grounded microstrip

25, 45‧‧‧ Grounded Metals Department

26, 46‧‧‧ Grounding plate

211, 411‧‧‧ upper surface

212, 213, 412, 413‧‧‧ side edges

221, 421‧‧‧ first vertical extension

222, 422‧‧‧ first horizontal extension

223, 423‧‧‧ second vertical extension

231, 431‧‧‧ horizontal radiant section

232, 432‧‧‧ vertical radiant section

424‧‧‧Second horizontal extension

FIG. 1 is a perspective view of a five-frequency antenna of a portable electronic device.

2A is a perspective view of a five-band antenna of a portable electronic device according to an embodiment of the invention.

2B is a schematic plan view of a five-band antenna of a portable electronic device according to an embodiment of the present invention, wherein a portion above the broken line is a grounded metal portion, and a portion below the broken line is a substrate and a first radiating microstrip portion on the substrate, The second radiating microstrip portion and the grounded microstrip portion.

3A is a diagram showing a return loss frequency response of a five-band antenna of a portable electronic device according to an embodiment of the present invention.

FIG. 3B is a diagram showing a voltage standing wave ratio frequency response of a five-band antenna of a portable electronic device according to an embodiment of the invention.

4A is a perspective view of a five-band antenna of a portable electronic device according to another embodiment of the present invention.

4B is a schematic plan view of a five-band antenna of a portable electronic device according to another embodiment of the present invention, wherein a portion above the broken line is a grounded metal portion, and a portion below the broken line is a substrate and a first radiating microstrip portion on the substrate. a second radiating microstrip portion and a grounded microstrip portion.

5A is a diagram showing a return loss frequency response of a five-band antenna of a portable electronic device according to another embodiment of the present invention.

FIG. 5B is a diagram showing a voltage standing wave ratio frequency response of a five-band antenna of a portable electronic device according to another embodiment of the present invention.

5C is a graph showing the radiation efficiency frequency response of a five-band antenna of a portable electronic device according to another embodiment of the present invention.

5D is a diagram showing a gain frequency response of a five-band antenna of a portable electronic device according to another embodiment of the present invention.

21‧‧‧Substrate

22‧‧‧First Radiation Microstrip

23‧‧‧Second radiating microstrip

24‧‧‧Grounding microstrip

25‧‧‧Grounded metal parts

26‧‧‧ Grounding plate

211‧‧‧ upper surface

212, 213‧‧‧ side edge

221‧‧‧First vertical extension

222‧‧‧First horizontal extension

223‧‧‧Second vertical extension

231‧‧‧Horizontal radiant section

232‧‧‧Vertical radiant section

Claims (16)

A five-band antenna for a portable electronic device includes: a substrate having an upper surface; and a first radiating microstrip portion having a first vertical extension, a first horizontal extension, and a second vertical And extending the first horizontal extension to the first vertical extension and the second vertical extension, wherein the end of the second vertical extension is a signal feed point; a second radiation The microstrip portion has a horizontal radiant section and a vertical radiant section, and the horizontal radiant section and the vertical radiant section are coupled to each other; a grounded microstrip portion; and a grounded metal portion is located at a side edge of the substrate, And the grounding metal portion is perpendicular to the substrate; and a grounding plate is disposed on the other side edge of the substrate opposite to the grounding metal portion; wherein the first radiating microstrip portion and the second radiating microstrip portion And the grounded microstrip portions are respectively disposed on the upper surface of the substrate, and the grounded metal portion is coupled to the grounded microstrip portion; the horizontal radiating portion of the second radiating microstrip portion is located in the first radiating portion band Between the first horizontal extension and the grounded metal portion, the vertical radiation segment of the second radiation microstrip portion is located between the second vertical extension of the first radiation microstrip portion and the grounded microstrip portion; The vertical radiating section of the second radiating microstrip portion extends from the horizontal radiating section to the other side edge of the substrate relative to the grounded metal portion, and the vertical radiating section of the second radiating microstrip portion is coupled to the grounding plate Coupling with each other, the grounded microstrip portion extends from the grounded metal portion to the substrate relative to the connection The other side edge of the ground metal portion, and the grounded microstrip portion is coupled to the ground plate. The five-frequency antenna of the portable electronic device according to claim 1, wherein the substrate is a rectangular substrate of FR-4 material. The five-frequency antenna of the portable electronic device of claim 2, wherein the grounded metal portion is a rectangular copper piece, and the long side of the rectangular copper piece is interconnected with the long side of the rectangular substrate. . The five-frequency antenna of the portable electronic device of claim 1, wherein the first radiation microstrip portion, the second radiation microstrip portion, and the grounded microstrip portion are made of copper foil. The fifth frequency antenna of the portable electronic device of claim 1, wherein the second vertical extension of the first radiation microstrip portion is separated from the horizontal radiation segment of the second radiation microstrip portion. The direction extends from the first horizontal extension. The fifth frequency antenna of the portable electronic device of claim 1, wherein the first radiation microstrip portion further comprises a second horizontal extension, and the second horizontal extension is from the second vertical An end of the extension that is away from the first horizontal extension extends toward a vertical radiant section of the second radiation microstrip. The five-frequency antenna of the portable electronic device of claim 1, wherein the first radiating microstrip portion has a width of 0.5 mm. The five-frequency antenna of the portable electronic device of claim 1, wherein the second radiating microstrip portion has a width of 1 mm. The fifth frequency antenna of the portable electronic device of claim 1, wherein the first vertical extension of the first radiation microstrip portion is separated from the horizontal radiation portion of the second radiation microstrip portion by a width It is a gap of 0.5 mm. The fifth frequency antenna of the portable electronic device of claim 1, wherein the first horizontal extension of the first radiation microstrip portion is separated from the horizontal radiation portion of the second radiation microstrip portion by a width It is a gap of 0.5 mm. The five-frequency antenna of the portable electronic device of claim 1, wherein the horizontal radiating section of the second radiating microstrip portion is separated from the long side of the grounding metal portion connected to the substrate by a width 0.5 mm gap. The five-frequency antenna of the portable electronic device of claim 1, wherein the horizontal radiating section of the second radiating microstrip portion is separated from the other side edge of the grounding metal portion of the substrate. A gap of 6 mm width. The five-band antenna of the portable electronic device of claim 1, wherein the five-band antenna of the portable electronic device transmits or receives a high frequency signal in a frequency band between 806 MHz and 965 MHz. . The five-band antenna of the portable electronic device of claim 1, wherein the five-band antenna of the portable electronic device transmits or receives a high frequency signal in a frequency band between 1665 MHz and 2310 MHz. . The five-frequency antenna of the portable electronic device according to claim 1, wherein the five-frequency antenna of the portable electronic device is GSM 850 A high frequency signal is transmitted or received in a normal frequency band, a GSM 900 specification frequency band, a DCS specification frequency band, a PCS specification frequency band, or a UMTS specification frequency band. The five-band antenna of the portable electronic device of claim 1, wherein the portable electronic device is a notebook computer, a personal digital assistant or a mobile phone.