TWM271266U - Portable electronic device and antenna set thereof - Google Patents

Description

M271266 IV. Creation Instructions α) [Technical Field to which the New Type belongs] This creation relates to an antenna group, and particularly to an antenna group of a dual-mode mobile phone. [Prior art] Referring to FIG. 1a, it shows a traditional integrated personal mobile phone communication system (PHS 'Personal Handyphone System (hereinafter referred to as PHS)) and a global mobile communication system (GSM' Global System for Mobile Commun i cat i on, below) GSM) dual-mode mobile phone antenna group, which has a first antenna 10, a first signal transceiver circuit 11, a second antenna • 20, a second signal transceiver circuit 21 and an integrated processing circuit 3 〇. The first antenna 10 is coupled to the first signal transceiver circuit 11, and the first signal transceiver circuit 丨 is coupled to the integrated processing circuit 30. The second antenna 20 is coupled to the second signal transceiver circuit 21, and the second signal transceiver circuit 21 is coupled to the integrated processing circuit 30. The first antenna 10 and the first signal transceiving circuit 11 are used to transmit and receive PHS signals (1 900 MHz), and the second antenna 20 and the second signal transceiving circuit 21 are used to transmit and receive GSM signals. The so-called GSM signals include GSM 900. 0 (900 MHz) and DCS1800 (1800 MHz) signals. The disadvantage of the conventional dual-mode mobile phone is that since the mutual interference between the first antenna 10 and the second antenna 20 is very serious, the interference comes from the first antenna v PHS 1 900 band and the second antenna. The Dcsl800 band is too close, resulting in poor isolation between the two antennas, resulting in a significant decline in the characteristics of the two antennas. Therefore, in the design of the mechanism, the first antenna 10 and the second antenna 20 must be effectively kept away from each other to reduce the interference phenomenon. In particular, this interference problem is mainly due to poor isolation between the DCS 1 800 signal and the PHS signal. due to

M271266 4. Creation instructions (2) Dual standby settings for dual-mode mobile phones, which need to send and receive GSM900 and PHS signals or Dcsl800 and pHS signals at the same time, so this interference problem is difficult to avoid. Refer to Figure 1b to further explain the effect of the antenna interference problem of the conventional dual-mode mobile phone on the design of the mechanism. Figure 丨 b shows a conventional dual-mode mobile phone 1 ', which has a main body 3 and a top cover 2. The upper cover 2 is pivotally connected to the main body 3. In order to effectively separate the first antenna 10 and the second antenna 20, the conventional dual-mode mobile phone 1 sets the first antenna 10 on the upper cover and transmits the PHS signal using the transmission line 12, and the second antenna 2 〇 is set in the body 3. This separates the first antenna 10 and the second antenna 20 to reduce interference. The shortcoming of the conventional dual-mode mobile phone is that because of the long transmission distance of the PHS signal, 'to compensate for the energy loss in the transmission process, the first antenna 10 must use a retractable antenna (retrac1; able antenna) with high gain and efficiency. 'This will increase the cost of the first antenna 10. In addition, since the first antenna 10 and the second antenna 20 must be effectively separated from each other, the flexibility of the design of the mobile phone mechanism is reduced, and thus the change in appearance of the mobile phone is reduced. [New content] 丨 This creation is to solve the problem of the conventional technology, and provides an antenna set, which includes a first antenna, a second antenna, a first duplexer, and a first signal. A receiving / transmitting circuit, a second signal receiving / transmitting circuit, a third signal receiving / transmitting circuit, and a pre-control / post-processing circuit. The first antenna is coupled to the first duplexer. The first duplexer is coupled to the first signal receiving / transmitting circuit and the second signal receiving / transmitting circuit. Do it the next day

M271266 4. Creation instructions (3) Connect to the third signal receiving / transmitting circuit. The first signal receiving / transmitting circuit, the second signal receiving / transmitting circuit and the third signal receiving / transmitting circuit are all coupled to the pre-control / post-processing circuit. Applying this creation can effectively reduce the interference between the antennas, so the mechanism design of the mobile phone can be flexibly, and the cost of parts such as the antenna can be reduced. [Embodiment] [First Embodiment] Referring to FIG. 2a, which shows the antenna group of the first embodiment of the present invention, which includes a first antenna 110, a second antenna 120, and a first pair The tester 113, a first signal receiving / transmitting circuit 1 11, a second signal receiving / transmitting circuit 112, a third signal receiving / transmitting circuit 123, and a pre-control / post-processing circuit 130. The first antenna 11 〇 consumes the first duplexer 1 1 3. The first duplex duplex 11 3 is coupled to the first signal receiving / transmitting circuit 111 and the second signal receiving / transmitting circuit 112. The second antenna 120 is coupled to the third signal receiving / transmitting circuit 123. The first signal receiving / transmitting circuit lu, the second signal receiving / transmitting circuit 112, and the third signal receiving / transmitting circuit 123 are all coupled to the pre-control / post-processing circuit 130. The first duplexer 13 may be a duplexer produced by Murata. This creation mainly uses the first antenna 110 to send and receive GSM900 signals and PHS signals in an optional manner, and uses the second antenna 120 to send and receive DCS1800 signals. With this arrangement, the effective separation distance between the first antenna and the second antenna will increase, because the single-frequency DCS 1 800 antenna can use a smaller volume than the dual-frequency antenna of GSM9 0 / DCS1 8 0 0. The antenna is implemented, so under the dual standby setting, the first antenna 11 and the second antenna 12 can be effectively reduced.

M271266 Fourth, the signal between the creative instructions (4) interferes, thus improving the problem of conventional technology. The operation of the antenna set in the first embodiment of this creation in the signal receiving state and the signal transmitting state will be described below with reference to Figs. 2b and 2c. Because the first signal receiving / transmitting circuit 11 1, the second signal receiving / transmitting circuit 112, the third signal receiving / transmitting circuit 123, and the pre-control / post-processing circuit 1 3 0 perform differently in the signal receiving state and the signal transmitting state, respectively. Therefore, for the convenience of description and understanding, the following list names the functions performed at that time. For the signal receiving status, refer to Figure 2b. When receiving a signal, the first antenna 11 〇 receives a first receiving signal (PHS signal) and a second receiving signal (GSM 9 00 signal) in a selectable manner, and respectively The first receiving signal and the second receiving signal are transmitted to the first duplexer 113. The first duplexer 11 3 passes the first received signal to the first signal receiving circuit 11 1 and passes the second received signal to the second signal receiving circuit 112. The second antenna 120 receives a third reception signal (DCS1 800 signal), and passes the third reception signal to the third signal reception circuit 123. First signal receiving circuit 111, second signal receiving circuit 112

And the third signal receiving circuit 123 processes the first receiving signal, the second receiving signal, and the third receiving signal, respectively, and performs frequency reduction and gain processing, and then passes the first receiving signal, the second receiving signal, and the third receiving signal to The post-processing circuit 130 converts information such as sound and video. Signal transmission status Refer to FIG. 2c. When transmitting a signal, the front control circuit 1 30 controls the first signal transmission circuit 111, the second signal transmission circuit 112, and the third signal.

0813-A40389TWF (N2); LEMON; PWNC-CO-0082-TWXX.ptd Page 8 M271266 IV. Creative Instructions (5) '" The transmitting circuit 123 transmits a first transmitting signal (pHS signal) and a second Transmit howl (GSM900 signal) and a third transmit signal (DCS1800 signal). The first duplexer 1 1 3 receives the first transmission signal and the second transmission signal, and transmits them to the first antenna 11 respectively. The first antenna 110 transmits the first transmission efl and the first transmission signal, and the second antenna 1 2 Q transmits the third transmission signal. Referring to FIG. 3, it shows a mobile phone (portable electronic device) 100 of this creation, which has a main body 3 and an upper cover 2, and the upper cover 2 is pivotally connected to the main body 3. Since the signal interference between the first antenna 11 〇 and the second antenna 丨 2 〇 has been effectively reduced, the first antenna 11 10 and the second antenna 12 0 can be installed in the body 3 at the same time. In this embodiment, the first antenna is an exposed antenna, and the second antenna 120 is a built-in antenna. The second antenna 120 may be a flat antenna. The first antenna 110 is disposed on the main body 3. The second antenna 120 is provided in the body 3. Because the first transmission signal (PHS signal) and the second transmission signal (GSM90 0 signal) are selectively received through the first antenna 110, the second transmission signal (D CS 1 800 signal) is transmitted through The second antenna is transmitted and received. Therefore, the dual-mode standby mode of the antenna set of this creation is to send and receive the first transmission signal (PHS signal) and the second transmission signal (GSM900 signal) at the same time, or 1 to send and receive the first transmission signal (PHS Signal) and a third transmit signal (DCS1800 signal). Because the interference problem between the first antenna 110 and the second antenna 20 is greatly reduced by increasing the effective separation distance, the distance between the first antenna 110 and the second antenna 120 is more flexible. Flexible

M271266 IV. Creative Instructions (6) " 咼. In addition, it is not necessary to use a high-cost telescopic antenna to transmit and receive signals, thereby reducing costs. Although the structure of the mobile phone of this embodiment is disclosed in FIG. 3, the antenna set of this creation can also be applied to various types of mobile phones, and the configuration method can also be changed. Cover phone. Also, the second antenna 120 can also be disposed in the upper cover 2 to configure the flexible mobile phone components. [Second Embodiment] Referring to Fig. 4a ', this shows a second embodiment of the present creation. As the GSM mobile phone has been developed for a long time, its technology and products are quite mature. Therefore, the current cost of a single circuit device that can process GSM900 and DCS1800 signals may be lower than in the first embodiment. The second signal receiving / transmitting circuit of the GSM900 signal and the DCS1800 signal and the second signal receiving / transmitting circuit 1 2 3. Therefore, the second embodiment of the present invention is characterized by using a circuit design that integrates the processing of the GSM900 signal and the & DCS180 signal to reduce costs. The second embodiment of this creation uses a second duplexer 125 and a fourth signal receiving / transmitting circuit 124 to integrately process the GSM900 signal and the D CS1800 signal. The second duplexer 125 is lightly connected to the second antenna 120 and the first duplexer 113. The fourth signal receiving / transmitting circuit 124 connects the second duplexer 125 and the control / post-processing circuit 130, for example. The second duplex zero 125 can be a duplexer produced by Murata. The operational differences between the second embodiment and the first embodiment are as follows.

0813 «A40389TWF (N2); LEMON; PWNC-CO-0082-TWXX.ptd Page 10 M271266 IV. Creation instructions (7) When receiving a signal, refer to Figure 4b, the second duplexer 1 2 5 receives the slave The second received signal from the first duplexer 113 or the third received signal from the second antenna 120 is transmitted to the fourth signal receiving device 1 2 4. The fourth signal receiving device 1 2 4 processes the second received signal or the third received signal, and then transmits it to the post-processing circuit 1 3 0. When transmitting a signal, referring to FIG. 4c, the front control circuit 130 controls the fourth signal transmission circuit 1224 to transmit the second transmission signal or the third transmission signal in a selectable manner. After receiving the second transmission signal or the third transmission signal from the fourth signal transmitting circuit 124, the second duplexer 125 transmits it to the first antenna duplexer 113 or the second antenna 120, respectively. In this way, the low-cost fourth signal receiving / transmitting circuit can be integrated to process the GSM900 signal and the DCS1800 signal. Referring to Figure 5, this project can also add matching circuits to reduce power loss. For example, the matching circuit 116 is coupled between the first antenna 110 and the first duplexer 113; the matching circuit 126 is coupled between the second antenna 120 and the second duplexer 125; the matching circuit is coupled 127 is between the second duplexer 125 and the fourth signal receiving / transmitting circuit 124; and is coupled between the first duplexer 113 and the first signal receiving / transmitting circuit 111. In this way, the loss of power can be reduced 'and the efficiency of signal reception and transmission can be improved. Xin This application can effectively reduce the interference between antennas, so the mechanism design of the mobile phone can be flexible, and the cost of parts such as the antenna can be reduced. Although this creation has been disclosed above with specific and preferred embodiments, it is not intended to limit the creation. Anyone who is familiar with this skill can still make some changes and decorations without departing from the spirit and scope of the creation , So this

M271266

0813-A40389TWF (N2); LEMON; PWNC-CO-0082-TWXX.ptd Page 12 M271266 Simple explanation of the diagram [Simplified description of the diagram] Figure 1 a shows the conventional antenna group; Figure 1 b shows the display antenna Known mobile phone; Figure 2a shows the antenna set of the first embodiment of this creation; Figure 2b shows the reception status of the first embodiment of this creation; Figure 2c shows the first embodiment of this creation Fig. 3 shows the mobile phone of this creation; ^ Fig. 4a shows the antenna set of the second embodiment of this creation; Fig. 4b shows the reception state of the second embodiment of this creation; • 4c The figure shows the emission state of the second embodiment of the present invention; FIG. 5 shows the situation where the antenna group of the second embodiment of the present invention is matched with a matching circuit. [Description of main component symbols] 1. 0 0 ~ Mobile phone 2 ~ Top cover 3 ~ Body 1 0 ~ First antenna 1 1 ~ First signal transceiver circuit 1 2 ~ Transmission line 2 0 ~ Second antenna 2 1 ~ No. Two-signal transceiver circuit 30 to integrated processing circuit 110 to first antenna 111 to first signal receiving / transmitting circuit

M271266 Brief description of the diagram 11 2 ~ second signal receiving / transmitting circuit 11 3 ~ first duplexer 116, 126, 127, 128 ~ matching circuit 1 2 0 ~ second antenna 1 2 3 ~ third signal receiving / Transmitting circuit 1 2 4 ~ 4th signal receiving / transmitting circuit 1 2 5 ~ Second duplexer 1 3 0 ~ Pre-control / post-processing circuit

0813-A40389TW (N2); LEMON; PWNC-CO-0082-TO (X.ptd page 14

Claims (1)

M271266 5. Scope of patent application1. An antenna group includes: a first antenna, which can selectively receive a first receiving signal and a second receiving signal; a first duplexer, and the first day Line coupling, receiving the first reception signal and the second reception signal from the first antenna, and transmitting the first " " " " reception signal and the second reception signal respectively; a first signal A receiving circuit coupled to the first duplexer to receive the first receiving signal; a second signal receiving circuit coupled to the first duplexer to receive the second receiving signal; and & A first antenna 'receives a third receiving signal; a third signal receiving circuit is coupled to the second antenna to receive and process the third receiving signal; and a post-processing circuit is coupled to the first signal receiving The circuit, the second signal receiving circuit, and the third signal receiving circuit later process the first receiving signal, the second receiving signal, and the third receiving signal. 2 · The antenna set according to item 1 of the scope of patent application, wherein the first received signal is a PHS signal (190 MHz). 3. The antenna set according to item 1 of the scope of patent application, wherein the second receiving signal is a GSM900 signal (900MHz). 4. The antenna set according to item 1 of the scope of patent application, wherein the third received signal is a DCS1 800 signal (180 MHz). 5. The antenna set according to item 1 of the scope of patent application, wherein the first received signal is a PHS signal (190 0 MHz), and the second received signal is M271266 V. Patent application scope GSM900 signal (900MHz) (1800MHz) ° The third receiving signal is DCS1 800 signal 6. · A portable electronic device, including: a main body; a first antenna provided in the On the body, the first receiving signal and a second receiving signal are received in an optional manner; coupled to a far first antenna, receiving from the first antenna and the second receiving signal, and transmitting the first receiving signal respectively The receiving signal and the second receiving signal; J / Ang received the first duplexer-receiving signal 丨 a first signal receiving the first receiving signal-the second receiving the second receiving-the second day one ^ The second message, the third receiving message, a post-processing circuit, the first application number, the signal line, and the number; the circuit and the two patent receiving circuit 'connect the first-class • ^ duplex mode to receive The receiving circuit is connected to the first duplexer to receive a third receiving signal at the receiving station; the receiving circuit is coupled to the second and receiving the receiving signal to receive the processing signal 1 7. In the first day Line is 8. Medium, the 9. If applied The second antenna of the patent is, for example, the application of the patent-coupled signal-receiving signal and the subsequent processing of the second-receiving signal in the sixth-range of the sixth-range. A portable electronic device with an exposed antenna, the scope of item 6 and 10, a portable electronic device with a built-in antenna, and the portable electronic device described in item 8 of the second message range ,its 0813-A40389TWF (N2); LEMON; PWNC-C0- 0082- (.ptd M271266 In the "the brother" — the antenna is a flat panel antenna. I 〇 · ★ As in the portable electronic device described in item 6 of the scope of patent application, the antenna of i in the i is located in the body. /, II · The portable electronic device described in item 6 of the scope of patent application, including a cover, pivotally connected to the main body. /, 1 2 · The portable electronic device according to item 11 of the scope of patent application, wherein the second antenna is disposed in the upper cover. 1, 3 · The portable electronic device as described in item 6 of the scope of patent application, wherein the first received signal is a PHS signal (1 900 MHz). 14. The portable electronic device as described in item 6 of the scope of patent application, wherein the second received signal is a GSM900 signal (900MHz). 15. The portable electronic device according to item 6 of the scope of patent application, wherein the third received signal is a DCS1 800 signal (180 MHz). 16. The portable electronic device according to item 6 of the scope of patent application, wherein the first received signal is a PHS signal (1 900 MHz), and the second received signal is a GSM 900 signal (900 MHz). The three received signals are DCS 1 800 signals (1800MHz). 17 · An antenna set including: a first signal transmitting circuit that transmits a first transmitting signal; a second signal transmitting circuit that transmits a second transmitting signal; a third signal transmitting circuit that transmits a third transmitting signal A front control circuit coupled to the first signal transmission circuit, the second signal transmission circuit, and the third signal transmission circuit 'to control the transmission of the first transmission signal, the second transmission signal, and the third transmission signal ; M271266 5. Application scope: a first duplexer coupled to the first signal transmitting circuit and the second signal transmitting circuit to transmit the first transmitting signal and the second transmitting signal, respectively; a first antenna, Coupled to the first duplexer and transmitting the first transmission signal and the second transmission signal in a selectable manner; and a second antenna coupled to the third signal transmission circuit to transmit the third transmission Signal. 18. The antenna group according to item 17 in the scope of patent application, wherein the first transmission signal is a PHS signal (1900 MHz). • 19 • The antenna group as described in item 17 of the scope of patent application, wherein the second transmission signal is a GSM900 signal (90 0 MHz). 2 0. The antenna group according to item 17 in the scope of patent application, wherein the third transmission signal is a DCS1 800 signal (1800 MHz). 2 1. The antenna set according to item 17 in the scope of patent application, wherein the first transmission signal is a PHS signal (1900 MHz), and the second transmission signal is a GSM900 signal (900 MHz). The third transmission signal is DCS1 800 signal (1800MHz). 22 · —A portable electronic device, including a body; a first signal transmitting circuit transmitting a first transmitting signal; a second signal transmitting circuit transmitting a second transmitting signal; a third signal transmitting circuit Transmitting a third transmission signal; a front control circuit coupled to the first signal transmission circuit, the second signal transmission circuit and the third signal transmission circuit to control the first transmission 0813-A40389TWF (N2); LEMON; PWNC-CO-0082-TWXX.ptd Page 18 M271266 5. Application for patent scope σ1, the second transmission signal and the transmission of the third transmission signal; a first-duplexer, Coupled to the / signal transmitting circuit and the second signal transmitting circuit to transmit the / transmitting signal and the second radio transmitting signal respectively; χ and a first antenna are provided on the body and are coupled to the first A duplexer, and transmitting the first transmission signal and the second transmission signal in a selectable manner; and a second antenna coupled to the third signal transmission circuit to transmit the third transmission signal. _ 23. The portable electronic device according to item 22 of the scope of patent application, wherein the first antenna is an exposed antenna. 24. The portable electronic device according to item 22 of the scope of patent application, wherein the second antenna is a built-in antenna. 25. The portable electronic device according to item 24 of the scope of patent application, wherein the second antenna is a flat plate antenna. 26. The portable electronic device according to item 22 of the scope of patent application, wherein 'the second antenna is provided in the body. 27. The portable electronic device according to item 22 of the scope of patent application, further comprising an upper cover pivotally connected to the main body. 2 8 · The portable electronic device as described in item 2 of the scope of patent application, wherein 'the second antenna is provided in the upper cover. 29. The portable electronic device as described in item 22 of the scope of patent application, wherein ‘the first transmission signal is a pHS signal (1900 MHz). 3 0 · The portable electronic device described in item 22 of the scope of patent application, 0813-A40389TWF (N2); LEMON; PWNC-CO-0082-TWXX ptd No. 19 hundred M271266 V. Application for patent scope Among them, the second transmission signal is GSM900 signal (90 0MHz). 3 1 · The portable electronic device as described in item 22 of the scope of patent application, wherein the third transmission signal is a DCS 1 800 signal (180 MHz). 3 2 · The portable electronic device as described in item 22 of the scope of patent application, wherein the first transmission signal is a PHS signal (1900 MHz), and the second transmission signal is a GSM900 signal (90 0MHz) The third transmission signal is a DCS1800 signal (1 800MHz). 3 3 · —A kind of antenna group 'includes: a first antenna that selectively receives a first receiving signal and a second receiving signal; a first duplexer coupled to the first antenna Receiving the first receiving signal and the second receiving signal from the first antenna, and transmitting the first receiving signal and the second receiving signal respectively; a first signal receiving circuit coupled to the first duplex A second antenna to receive the third received signal; a second duplexer coupled to the first duplexer and the second antenna, and respectively transmitting the second received signal; A second receiving signal and the third receiving signal; a fourth signal receiving circuit coupled to the second duplexer to receive and process the second receiving signal and the third receiving signal; a post-processing circuit coupled to the The first signal receiving circuit and the fourth signal receiving circuit process the first receiving signal, the second receiving signal, and the third receiving signal later. 34. The antenna set as described in item 33 of the scope of patent application, which is more burdensome 0813-A40389TWF (N2); LEMON; PWNC-CO-0082-TWXX. Ptd page 20 M271266 V. Application scope: a first matching circuit, which is coupled to the second duplexer and the fourth signal receiving circuit To improve the receiving effect of the second receiving signal and the third receiving signal; a second matching circuit is coupled between the first duplexer and the first signal receiving circuit to improve the first The reception effect of the received signal. 35. The antenna set according to item 33 in the scope of patent application, wherein the first received signal is a PHS signal (190 MHz). 36. The antenna set according to item 33 in the scope of the patent application, wherein the second received signal is a signal of 303 仏 900 (from 900 to 011). _ 3 7 · The antenna set as described in item 33 of the scope of patent application, wherein the third received signal is a DCS1 800 signal (1800 MHz). 38 · A portable electronic device, including: a body; a first antenna disposed on the body to receive a first receiving signal and a second receiving signal; a first duplexer, and The first antenna is coupled to receive the first receiving signal and the second receiving signal from the first antenna, and pass the first receiving signal and the second receiving signal separately; a first signal receiving circuit, Coupled to the first duplexer to receive and process the first receive signal; a second antenna to receive a third receive signal; a second duplex state to switch between the first duplexer and the second duplexer An antenna, and respectively transmitting the second receiving signal and the third receiving signal; a fourth signal receiving circuit, coupled to the second duplexer, for receiving the signal; M271266 5. The scope of the patent application deals with the second receiving signal and the third receiving signal; a post-processing circuit, which is coupled to the first signal receiving circuit and the fourth signal receiving circuit, and then processes the first receiving signal and the first receiving signal. The second receiving signal and the third receiving signal. 39. The portable electronic device according to item 38 of the scope of patent application, further comprising a first matching circuit coupled between the second duplexer and the fourth signal receiving circuit to improve the first Two receiving signals and the receiving effect of the third receiving signal; a second matching circuit coupled between the first duplexer and the first signal receiving circuit to improve the reception of the first receiving signal effect. 40. The portable electronic device according to item 38 of the scope of patent application, wherein the first antenna is an exposed antenna. 41. The portable electronic device according to item 38 of the scope of patent application, wherein the first antenna of the '50H is a built-in antenna. 42. The portable electronic device as described in item 41 of the scope of patent application, wherein the second antenna is a flat plate antenna. 4 3 · The portable electronic device according to item 38 of the scope of patent application, wherein 'the second antenna is provided in the body. 44. The portable electronic device according to item 38 of the scope of patent application, further comprising an upper cover pivotally connected to the main body. 4 5. The portable electronic device according to item 44 of the scope of patent application, wherein the second antenna is disposed in the upper cover. 46. The portable electronic device described in item 38 of the scope of patent application, wherein the first receiving signal is a pHS signal (1 900 MHz). M271266 V. Patent application scope 4 7 · The portable electronic device as described in item 38 of the patent application scope, wherein the second received signal is a GSM900 signal (900MHz). 48. The portable electronic device as described in item 38 of the scope of patent application, wherein the third received signal is a DCS1 800 signal (180 MHz). 4 9 · An antenna group including: a first signal transmitting circuit, transmitting / first transmitting signal; a fourth signal transmitting circuit, transmitting a second transmitting signal and a third transmitting signal in a selectable manner; A control circuit coupled to the first signal transmitting circuit and the fourth prospective signal transmitting circuit to control the transmission of the first transmitting signal, the second transmitting signal and the third transmitting signal; a second duplexer; Connect the fourth signal transmitting circuit 'to transmit the second and third transmitting signals respectively; a first duplexer, lightly connect the first signal transmitting circuit and the second duplexer to respectively Transmitting the first transmission signal and the second transmission signal; a first antenna coupled to the first duplexer, and transmitting the first transmission signal and the second transmission signal in a selectable manner; and a first Two antennas are coupled to the second duplexer to transmit the third transmission signal. 50. The antenna set according to item 49 of the scope of patent application, further comprising a first matching circuit coupled between the second duplexer and the fourth signal transmitting circuit to improve the second The transmitting signal and the signal transmitting effect of the third transmitting signal; a second matching circuit coupled to the first duplexer 0813-A40389TWF (N2); LEMON; PWNC-CO-0082-TWXX.ptd page 23 M271266 5. Scope of patent application and between the first signal receiving circuit to improve the transmission effect of the first transmission signal. 5 1 · The antenna set as described in item 49 of the scope of patent application, wherein 'the first transmission signal is a PHS signal (190 MHz) ° 5 2 · The antenna set as described in item 49 of the scope of patent application Among them, the second transmission signal is a GSM900 signal (900MHz) ° 5 3 · The antenna set as described in item 49 of the patent application scope, wherein the third transmission signal is a DCS1 80 0 signal (1 800 MHz) . 54. A portable electronic device comprising: a body; a first signal transmitting circuit that transmits a first transmitting signal; a fourth signal transmitting circuit that selectively transmits a second transmitting signal and a A third transmission signal; a front control circuit coupled to the first signal transmission circuit and the fourth signal transmission circuit to control the transmission of the first transmission signal 'the second transmission signal and the third transmission signal; a first Two duplexers coupled to the fourth signal transmitting circuit to transmit the second transmitting signal and the third transmitting signal respectively; _ two first duplexers coupled to the first signal transmitting circuit and the second dual signal For transmitting the first transmission signal and the second transmission signal respectively; A first antenna disposed on the body, coupled to the first duplexer, and transmitting the first transmission signal and the second number in a selectable manner; and # μ 戒 M271266 5. Scope of patent application A second antenna is coupled to the second dual device to transmit the third transmitting signal. 55. The portable electronic device according to item 54 of the scope of patent application, further comprising a first matching circuit connected between the second duplexer and the fourth signal transmitting circuit to improve the A second transmitting signal and a signal transmitting effect of the third transmitting signal; a first > matching circuit is coupled between the first duplexer and the first signal receiving circuit to improve the first transmitting signal Launch effect. 5 6 · The portable electronic device as described in item 54 of the scope of patent application, wherein the first antenna is an exposed antenna. 57. The portable electronic device described in item 54 of the scope of patent application, wherein 'the> antenna is a built-in antenna 58. The portable electronic device described in item 57 of the scope of patent application, Wherein, the first antenna is a flat antenna. 59. The portable electronic device according to item 54 of the scope of patent application, wherein the second antenna is disposed in the body. 60. The portable electronic device as described in item 54 of the scope of patent application, further comprising an upper cover pivotally connected to the main body. 6 1. The portable electronic device as described in item 60 of the scope of patent application, wherein the second antenna is disposed in the upper cover. 62. The portable electronic device described in item 54 of the scope of patent application, wherein the first transmission signal is a PHS signal (1 900 MHz) ° 63. The portable electronic device described in item 54 of the scope of patent application Device, wherein the second transmission signal is a GSM900 signal (900MHz) ° 0813-A40389TWF (N2); LEMON; PWNC-CO-0082-TWn.ptd page 25 M271266 0813-A40389TWF (N2); LEMON; PWNC-CO-0082-TWXX.ptd page 26