TW201342823A - Expansion device - Google Patents

Abstract

An expansion device is provided and includes a metal housing and a wireless transceiving module. The metal housing includes a receiving slot suitable for accommodating a mobile communication device, wherein the mobile communication device includes at least one antenna, so as to be operated in at least one communication band. When the mobile communication device is placed in the receiving slot, the wireless transceiving module receives electromagnetic wave in the least one communication band to generate at least one radio frequency signal and the at least one radio frequency signal is coupled to the at least one antenna in the mobile communication device through the wireless transceiving module.

Description

Expansion device

This case is about an expansion device.

As mobile communication devices become smaller and smaller, the display screen on mobile communication devices is relatively smaller. In order to meet the user's requirements for screen size, the concept of a mobile communication device incorporating an expansion device having a large display screen has been proposed. For example, the mobile communication device can be disposed in an expansion device having a larger display screen, and the mobile communication device is used as a processing core of the system, and the display screen of the expansion device is used to display the image, thereby increasing the mobile communication device. The purpose of the screen size.

However, when the mobile communication device is placed inside the expansion device, the reception quality of the antenna in the mobile communication device may be affected by the shielding effect generated by the expansion device.

The present invention provides an expansion device that can effectively improve the problem of reduced reception quality when the mobile communication device is installed in the expansion device.

The expansion device of the present invention comprises a housing and a wireless transceiver module. The housing includes a receiving slot for placing a mobile communication device, wherein the mobile communication device includes at least one antenna for operating in at least one communication band. When the mobile communication device is placed in the capacity When the slot is set, the wireless transceiver module receives electromagnetic waves in at least one communication frequency band and generates at least one RF signal, and the wireless transceiver module couples the at least one RF signal to at least one antenna in the mobile communication device.

In this case, after the user inserts the mobile communication device into the expansion device, the external wireless wave is received by the wireless transceiver module disposed on the expansion device, and the signal received by the wireless transceiver module is transmitted to the wireless transceiver module by wireless coupling. An antenna within the mobile communication device. Therefore, regardless of whether the housing of the expansion device is made of metal, the receiving quality of the mobile communication device when installed in the expansion device can be effectively improved.

In order to make the above features and advantages of the present invention more comprehensible, the following embodiments are described in detail with reference to the accompanying drawings.

10‧‧‧Electronic system

11, 51, 61, 71‧‧‧ mobile communication devices

112, 512, 612_1, 612_2, 712_1, 712_2, 712_3‧‧‧ antenna

114, 514, 614, 714_1, 714_2, 714_3‧‧‧ wireless communication modules

12‧‧‧Expansion device

120‧‧‧shell

1202‧‧‧ accommodating slots

1204‧‧‧掀able back cover

121, 521, 621, 721‧‧‧ wireless transceiver module

122, 522_1, 522_2, 622, 722_1, 722_2, 722_3‧‧‧ expand the antenna

124, 524_1, 524_2, 624_1, 624_2, 724_1, 724_2, 724_3, 724_4‧‧‧ transceiver

1242, 1246, 4242_1, 4242_2, 4242_3, 4242_4‧‧‧ Filter unit

1244, 4244_1, 4244_2, 4244_3, 4244_4‧‧‧ amplifying unit

126, 526_1, 526_2, 626_1, 626_2, 726_1, 726_2, 726_3, 726_4‧‧‧coupled antenna

4245‧‧‧Toggle switch

623, 723‧‧‧ integrated switch

716‧‧‧ integrated switch

718‧‧‧Main switch

FIG. 1 is a schematic diagram of an electronic system according to a first embodiment of the present disclosure.

2 is a block diagram of a mobile communication device and a wireless transceiver module according to the first embodiment of the present invention.

FIG. 3 is a block diagram showing the transceiver according to the second embodiment of the present invention.

4 is a block diagram showing a transceiver according to a third embodiment of the present invention.

FIG. 5 is a block diagram of a mobile communication device and a wireless transceiver module according to a fourth embodiment of the present invention.

FIG. 6 is a block diagram of a mobile communication device and a wireless transceiver module according to a fifth embodiment of the present invention.

FIG. 7 is a block diagram of a mobile communication device and a wireless transceiver module according to a sixth embodiment of the present invention.

FIG. 1 is a schematic diagram of an electronic system according to a first embodiment of the present disclosure. Referring to FIG. 1 , the electronic system 10 includes a mobile communication device 11 and an expansion device 12 . The mobile communication device 11 is, for example, a smart phone or a variety of portable electronic devices having wireless communication functions. The mobile communication device 11 includes an antenna 112, and the antenna 112 is operable in a communication band and receives electromagnetic waves in the communication band.

The expansion device 12 includes a housing 120 and a wireless transceiver module 121. The housing 120 includes a receiving slot 1202, and the receiving slot 1202 can be used to place the mobile communication device 11. For example, in one embodiment, the mobile communication device 11 is placed in the accommodating slot 1202 in a detachable manner. In addition, a side wall of the receiving groove 1202 may be formed by a removable back cover 1204. The shackle back cover 1204 can be unfolded or closed relative to the housing 120 so that the mobile communication device 11 can be placed in the accommodating slot 1202.

In general, when the mobile communication device 11 is placed in the receiving slot 1202, the receiving quality of the antenna 112 will cause the antenna 112 to be greatly degraded due to the shielding effect of the housing 120 affecting the environment of the antenna 112. Especially when the housing 120 is made of metal material is more obvious. Therefore, in this embodiment, the wireless transceiver module 121 in the expansion device 12 can operate in a communication frequency band to which the antenna 112 is applied. Thereby, when the mobile communication device 11 is placed in the receiving slot 1202, the mobile communication device The device 11 can be used to receive electromagnetic waves outside the housing 120 or emit electromagnetic waves to the outside of the housing 120. The wireless transceiver module 121 can receive the electromagnetic wave originally received by the antenna 112 and generate an RF signal, and the wireless transceiver module 121 couples the RF signal to the antenna 112 in the mobile communication device 11.

In this way, when the antenna 112 is affected by the casing 120 and cannot effectively transmit and receive electromagnetic waves, the mobile communication device 11 can change the electromagnetic wave transmission module 121 of the expansion device 12 to transmit and receive electromagnetic waves. In addition, through the coupling effect between the antenna 112 and the wireless transceiver module 121, the mobile communication device 11 does not need to connect with the wireless transceiver module 121 through an additional physical line, and can utilize the wireless more efficiently. Ways to pass signals to each other.

On the other hand, in an embodiment, after the mobile communication device 11 is placed in the receiving slot 1202, the mobile communication device 11 can activate or enable the touch display panel of the expansion device 12 and act through a data transmission interface. The data of the communication device 11 is transmitted to the expansion device 12, or the user touches the touch display panel of the expansion device 12, and the corresponding display is displayed by the touch display panel of the expansion device 12. . For example, the screen that should be displayed on the display screen of the mobile communication device 11 is displayed on the touch display panel of the expansion device 12.

Hereinafter, specific embodiments of the mobile communication device and the wireless transceiver module in the electronic system of the present invention will be described in various embodiments.

2 is a block diagram of a mobile communication device and a wireless transceiver module according to the first embodiment of the present invention. Referring to FIG. 2, the mobile communication device 11 includes an antenna 112 and a wireless communication module 114. The antenna 112 can operate in a communication frequency band and is connected Receive electromagnetic waves in this communication band. The wireless communication module 114 is configured to process the signal from the antenna 112, or transmit the signal to be transmitted to the antenna 112, and provide a wireless communication function corresponding to the communication frequency band.

The wireless transceiver module 121 in the expansion device 12 includes an expansion antenna 122, a transceiver 124, and a coupling antenna 126. The extension antenna 122 receives electromagnetic waves in a communication band to which the antenna 112 is applied, and converts the received electromagnetic waves into reception signals. The transceiver 124 is connected to the extension antenna 122 for processing the received signal to generate an RF signal. The coupling antenna 126 is coupled to the transceiver 124 for coupling the RF signal to the antenna 112. For example, an RF signal is transmitted to the antenna 112 in the form of electromagnetic waves.

For example, FIG. 3 is a block diagram illustrating a transceiver according to a second embodiment of the present disclosure. Referring to FIG. 3, the wireless transceiver module 121 includes an expansion antenna 122, a transceiver 124, and a coupling antenna 126. The expansion antenna 122 and the coupling antenna 126 are described in the paragraph of FIG. 2, and are not described herein.

The transceiver 124 includes a filtering unit 1242, an amplifying unit 1244, and a filtering unit 1246. The filtering unit 1242 is connected to the extension antenna 122 for performing a filtering operation on the received signal from the extension antenna 122. The amplifying unit 1244 is connected between the filtering unit 1242 and the coupling antenna 126 for amplifying the signal from the filtering unit 1242. In addition, the filtering unit 1246 performs a filtering operation on the signal from the amplifying unit 1244 to generate an RF signal. Coupling antenna 126 can couple the RF signal to an antenna of the mobile communication device (e.g., antenna 112 of FIG. 1).

In addition, in an embodiment of the present disclosure, a transceiver in the wireless transceiver module may also include multiple amplification units and multiple filtering units to simultaneously target different positions. The signals in the sub-band are separately filtered and signal amplified, and the signals in a certain sub-band are selected through the switch in the transceiver.

For example, FIG. 4 is a block diagram showing a transceiver according to a third embodiment of the present invention. Referring to FIG. 4, the coupled antenna 122 is a multi-frequency antenna, and the transceiver 124 includes filtering units 4242_1~4242_4, amplification units 4244_1~4244_4, and a switch 4245. The filtering units 4242_1~4242_4 are respectively connected to the coupling antenna 122, and are used for filtering the received signals from the coupling antenna 122. In particular, the pass band of each of the filtering units 4242_1~4242_4 corresponds to one of the communication bands. For example, the communication band of the embodiment may be, for example, an LTE (Long Term Evolution) communication band, and the pass bands of the filtering units 4242_1 to 4242_4 may be, for example, four sub-bands corresponding to the LTE communication band. Therefore, after the filtering units 4242_1~4242_4 respectively perform the filtering operation on the received signals from the extended antenna 122, the filtering units 4242_1~4242_4 can respectively generate signals in the sub-bands.

The amplifying units 4244_1~4244_4 are connected to the filtering units 4242_1~4242_4, and are used for amplifying the signals from the filtering units 4242_1~4242_4. The switch 4245 is connected between the amplifying units 4244_1~4244_4 and the coupling antenna 126 for switching the conduction path between the amplifying units 4244_1~4244_4 and the coupling antenna 126 to select one of the signals from the amplifying units 4244_1~4244_4 as the radio frequency. Signal. In addition, the switch 4245 transmits the RF signal to the coupling antenna 126, thereby causing the coupling antenna 126 to couple the RF signal located in a certain sub-band to the antenna of the mobile communication device.

In addition, if the extension antenna 122, the transceiver 124, and the coupled antenna 126 in the foregoing embodiment are regarded as a signal forwarding module corresponding to a communication frequency band, in an embodiment of the present disclosure, the wireless transceiver module of the expansion device is substantially The above may also include multiple signal forwarding modules, wherein each of the signal forwarding modules corresponds to one communication frequency band.

FIG. 5 is a block diagram of a mobile communication device and a wireless transceiver module according to a fourth embodiment of the present invention. Referring to FIG. 5, the mobile communication device 51 includes an antenna 512 and a wireless communication module 514. The antenna 512 can be a dual frequency antenna that is operable in the first communication band and the second communication band. In other words, the antenna 512 can receive electromagnetic waves in the first communication band and the second communication band. The wireless communication module 514 is coupled to the antenna 512 for processing signals from the antenna 512 and providing corresponding wireless communication functions. For example, in this implementation, the first communication frequency band may be, for example, a Bluetooth (BT) communication frequency band, and the second communication frequency band may be, for example, an LTE communication frequency band, and the wireless communication module 514 can provide at least two of Bluetooth and LTE. A communication standard wireless communication function.

The wireless transceiver module 521 includes an extension antenna 522_1, a transceiver 524_1, and a coupling antenna 526_1, and the extension antenna 522_1, the transceiver 524_1, and the coupling antenna 526_1 can be regarded as a first signal forwarding module. In addition, the wireless transceiver module 521 further includes an extension antenna 522_2, a transceiver 524_2, and a coupling antenna 526_2, and the extension antenna 522_2, the transceiver 524_2, and the coupling antenna 526_2 can be regarded as a second signal forwarding module. In short, the difference between the first signal forwarding module and the second signal forwarding module is that the communication frequency bands corresponding to the two are different. Among them, the first signal forwarding The module is configured to forward the signal corresponding to the first communication frequency band, and the second signal forwarding module forwards the signal corresponding to the second communication frequency band.

For example, the wireless transceiver module 521 can receive electromagnetic waves in the first communication frequency band through the expansion antenna 522_1 to generate a first received signal. In addition, the transceiver 524_1 processes the first received signal to generate a first RF signal. Furthermore, the coupling antenna 526_1 couples the first RF signal to the antenna 512. In addition, the wireless transceiver module 521 can also receive electromagnetic waves in the second communication frequency band through the extension antenna 522_2 to generate a second reception signal. In addition, the transceiver 524_2 processes the second received signal to generate a second RF signal. Furthermore, the second RF signal is coupled to the antenna 512 via the coupling antenna 526_2.

It is worth mentioning that the coupling antennas 526_1 and 526_2 in the wireless transceiver module 521 are all coupled to the antenna 512 in the mobile communication device 51. In other words, in this embodiment, the signal coupling between the wireless transceiver module 521 and the mobile communication device 51 is performed by using a plurality of coupled antennas and one antenna. However, in another embodiment, the mobile communication device 51 may also include multiple antennas. Thereby, signal coupling between the wireless transceiver module 521 and the mobile communication device 51 can be performed by using a plurality of coupled antennas and a plurality of antennas. For example, when the mobile communication device 51 includes a plurality of antennas, one of the mobile communication devices 51 may be responsible for receiving signals from the coupling antenna 526_1, and the other of the mobile communication devices 51 may be responsible for receiving the signals from the coupling antenna 526_2. Signal.

In addition, in an embodiment of the present disclosure, the expansion antenna in the expansion device can also be used to receive electromagnetic waves in multiple communication bands and integrate through the expansion device. The switch determines which antenna signal corresponding to which communication band is to be coupled to the antenna of the mobile communication device. Thereby, the number of expansion antennas in the expansion device can be effectively saved, and the space for setting an additional expansion antenna in the expansion device can be saved.

FIG. 6 is a block diagram of a mobile communication device and a wireless transceiver module according to a fifth embodiment of the present invention. Referring to FIG. 6, the mobile communication device 61 includes an antenna 612_1, an antenna 612_2, and a wireless communication module 614. The antenna 612_1 can receive electromagnetic waves in the first communication frequency band, and the antenna 612_2 can receive electromagnetic waves in the second communication frequency band, wherein the first communication frequency band and the second communication frequency band can also use the Bluetooth communication frequency band and the LTE communication frequency band as examples. However, this case does not limit it. The wireless communication module 614 is similar to the wireless communication module 514 of FIG. 5 and will not be described herein.

The wireless transceiver module 621 includes an expansion antenna 622, an integrated switch 623, a transceiver 624_1, a transceiver 624_2, a coupled antenna 626_1, and a coupled antenna 626_2. The transceiver 624_1 and the coupling antenna 626_1 are respectively similar to the transceiver 524_1 and the coupling antenna 526_1 in FIG. 5, and the transceiver 624_2 and the coupling antenna 626_2 are respectively similar to the transceiver 524_2 and the coupling antenna 526_2 in FIG. 5, respectively. No longer.

The expansion antenna 622 can be used to receive electromagnetic waves in the first communication band and the second communication band. In addition, the expansion antenna 622 converts the electromagnetic wave in the first communication frequency band into the first reception signal, and converts the electromagnetic wave in the second communication frequency band into the second reception signal. The integrated switch 623 has three connecting ends, wherein the first connecting end of the integrated switch 623 is electrically connected to the extended antenna 622, and the second and the second of the integrated switch 623 The three terminals are electrically connected to the transceiver 624_1 and the transceiver 624_2. In operation, the integrated switch 623 connects its first connection end to the second connection end or the third connection end to conduct the extension antenna 622 to one of the transceiver 624_1 and the transceiver 624_2.

In other words, the integrated switch 623 switches the conduction path between the extended antenna 622 and the transceivers 624_1~624_2 to transmit the signal from the extended antenna 622 to the transceiver 624_1 or the transceiver 624_2. For example, when the integrated switch 623 turns on the transmission path between the extension antenna 622 and the transceiver 624_1, the transceiver 624_1 can receive the signal from the extension antenna 622. Alternatively, when the integrated switch 623 turns on the transmission path between the extended antenna 622 and the transceiver 624_2, the transceiver 624_2 can receive the signal from the extended antenna 622.

It is worth mentioning that the wireless transceiver module 621 controls the integrated switch 623 in response to the operation of the mobile communication device 61. For example, when the mobile communication device 61 operates in the first communication band, the wireless transceiver module 621 controls the integrated switch 623 to cause the extended antenna 622 to conduct to the transceiver 624_1. At this time, the transceiver 624_1 processes the first received signal to generate the first RF signal, and the coupled antenna 626_1 couples the first RF signal to the antenna 612_1. Similarly, when the mobile communication device 61 operates in the second communication band, the wireless transceiver module 621 controls the integrated switch 623 to cause the extended antenna 622 to conduct to the transceiver 624_2. At this time, the transceiver 624_2 processes the second received signal to generate a second RF signal, and the coupling antenna 626_2 couples the second RF signal to the antenna 612_2.

However, the case is still not limited to the above embodiment. In an embodiment of the present disclosure, the mobile communication device may also have multiple wireless communication modules and multiple antennas. Each of the wireless communication modules can provide wireless communication functions supporting one or more wireless communication technologies, and multiple wireless communication modules can share the same antenna to transmit and receive signals.

FIG. 7 is a block diagram of a mobile communication device and a wireless transceiver module according to a sixth embodiment of the present invention. Referring to FIG. 7, the mobile communication device 71 includes antennas 712_1~712_3, wireless communication modules 714_1~714_3, integrated switch 716, and main switch 718. The antenna 712_1 is configured to send and receive electromagnetic waves in a first communication frequency band (for example, a Bluetooth communication frequency band or a WiFi communication frequency band) and a second communication frequency band (for example, an LTE communication frequency band or a 3G communication frequency band). In other words, the antenna 712_1 is equivalent to the combination of the BT/WiFi antenna of the mobile communication device 71 and the LTE/3G diversity antenna. Further, the antenna 712_2 corresponds to the main antenna of the mobile communication device 71, and the antenna 712_3 corresponds to the GPS antenna of the mobile communication device 71. Therefore, in practical applications, the antenna 712_2 may be, for example, an operation covering a 2G communication band, a 3G communication band, and an LTE communication band, and the antenna 712_3 may be, for example, an operation covering a GPS communication band.

In contrast, the wireless communication module 714_1 can provide a wireless communication function conforming to communication standards such as BT and WiFi. In addition, the wireless communication module 714_2 can provide wireless communication functions conforming to communication standards such as 2G, 3G, and LTE. Furthermore, the wireless communication module 714_2 includes a plurality of main channels CH11~CH13 and a plurality of diversity channels CH21~CH23. The plurality of main channels CH11~CH13 are mainly used to transmit signals from the antenna 712_2 (main antenna), and the plurality of diversity channels CH21~CH23 are mainly used to transmit the diversity signals in the LTE/3G communication band. . On the other hand, the wireless communication module 714_3 can provide a wireless communication conforming to the GPS communication standard. News function.

The integrated switch 716 is electrically connected to the antenna 712_1, the wireless communication module 714_1, and the diversity channels CH21~CH23 in the wireless communication module 714_2, and is used to connect the antenna 712_1 to the wireless signal processing module 714_1 or the diversity channels CH21~CH23. One. Thereby, the signal from the antenna 712_1 can be transmitted to the wireless signal processing module 714_1 or the diversity channels CH21 to CH23 through the integrated switch 716.

In the detailed operation, the mobile communication device 71 controls the integrated switch 716 according to the wireless communication function to be performed. For example, when the mobile communication device 71 is to perform a wireless communication function conforming to the BT/WiFi communication standard, the mobile communication device 71 will control the integrated switch 716 so that the antenna 712_1 can be turned on to the wireless signal processing module 714_1, and then received through the antenna 712_1. Or transmit a signal in the BT/WiFi band. In contrast, when the mobile communication device 71 wants to increase the data transmission rate, the mobile communication device 71 will control the integrated switch 716 so that the antenna 712_1 can be turned on to one of the diversity channels CH21 to CH23, and then receive the LTE/3G through the antenna 712_1. Diversity signals in the communication band.

The main switch 718 is electrically connected to the antenna 712_2 and the plurality of main channels CH11~CH12, and is configured to conduct the antenna 712_2 to one of the plurality of main channels CH11~CH12. Similarly, the mobile communication device 71 also controls the main switch 718 in accordance with the wireless communication function to be performed. For example, the main channels CH11 and CH12 can be used, for example, to transmit transmit signals and receive signals in the 2G communication band, and the main channel CH13 can be used, for example, to transmit signals in the 3G communication band. Therefore, when the mobile communication device 71 wants to perform a wireless communication function conforming to the 2G standard, the antenna 712_2 will be conducted through main switch 718 to main channel CH11 or CH12. In contrast, when the mobile communication device 71 is to perform a wireless communication function conforming to the 3G standard, the antenna 712_2 will be turned on to the main channel CH13 through the main switch 718.

Furthermore, the wireless transceiver module 721 includes expansion antennas 722_1~722_3, an integrated switch 723, transceivers 724_1~724_4, and coupling antennas 726_1~726_4. The expansion antenna 722_1, the integration switch 723, the transceiver 724_1, the transceiver 724_2, the coupling antenna 726_1, and the coupling antenna 726_2 are respectively similar to the extension antenna 622, the integration switch 623, the transceiver 624_1, the transceiver 624_2, and the coupling antenna in FIG. 626_1 and coupled antenna 626_2 will not be described here.

In short, the extended antenna 722_1 is configured to receive electromagnetic waves in the first communication frequency band (for example, BT or WiFi communication frequency band) and the second communication frequency band (for example, LTE or 3G communication frequency band), and convert the first to Receiving signal and second receiving signal. In addition, the wireless transceiver module 721 controls the integrated switch 723 in response to the operation of the mobile communication device 71. Therefore, when the extension antenna 722_1 is turned on to the transceiver 724_1, the transceiver 724_1 processes the first received signal into the first RF signal, and the coupling antenna 726_1 couples the first RF signal to the antenna 712_1 in the form of electromagnetic waves, thereby causing The antenna 712_1 can receive the signal (ie, the first RF signal) located in the first communication band. In addition, when the extension antenna 722_1 is turned on to the transceiver 724_2, the transceiver 724_2 processes the second reception signal into the second RF signal, and the coupling antenna 726_2 couples the second RF signal to the antenna 712_1 in the form of electromagnetic waves, thereby causing the antenna. 712_1 can receive the diversity signal in the second communication band (ie, the second RF signal).

Further, the expansion antenna 722_2, the transceiver 724_3, and the coupling antenna 726_3 are similar to the expansion antenna 122, the transceiver 124, and the coupling antenna 126 in FIG. 2, respectively. In particular, the extension antenna 722_2 is configured to receive electromagnetic waves in the third communication band and convert the received electromagnetic waves into third reception signals. The transceiver 724_3 processes the third received signal into a third RF signal, and the third RF signal is coupled to the antenna 712_2 by the coupling antenna 726_3 in the form of electromagnetic waves. Similarly, the extended antenna 722_3 is configured to receive electromagnetic waves in a fourth communication frequency band (for example, a GPS communication frequency band), and convert the received electromagnetic waves into fourth received signals. The transceiver 724_4 processes the fourth received signal into a fourth RF signal, and the coupled antenna 726_3 couples the fourth RF signal to the antenna 712_3 in the form of electromagnetic waves, thereby causing the antenna 712_3 to receive the bit in the fourth communication band (ie, , the fourth RF signal).

In summary, the expansion device of the embodiment of the present invention includes a wireless transceiver module. In addition, when the mobile communication device is placed in the expansion device, the wireless transceiver module in the expansion device can receive electromagnetic waves in one or more communication bands, and can couple the RF signals corresponding to the one or more communication bands to The antenna in the mobile communication device further enhances the reception quality of the mobile communication device when it is installed in the expansion device.

In addition, the expansion device of the embodiment of the present invention integrates the expansion antenna through an integrated switch in the wireless transceiver module to receive electromagnetic waves in multiple communication frequency bands by using a single expansion antenna. Thereby, the number of expansion antennas in the expansion device can be reduced and the space for setting the expansion antenna can be saved. Furthermore, the case also integrates the antennas in the mobile device, thereby reducing the number of antennas in the mobile device and the need to set up the antenna. Setting space.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present case. Any person having ordinary knowledge in the technical field can protect the case without making any changes or refinements without departing from the spirit and scope of the present case. The scope is subject to the definition of the scope of the patent application.

10‧‧‧Electronic system

11‧‧‧Mobile communication device

112‧‧‧Antenna

12‧‧‧Expansion device

120‧‧‧shell

1202‧‧‧ accommodating slots

1204‧‧‧掀able back cover

121‧‧‧Wireless transceiver module

Claims (12)

An expansion device comprising: a housing comprising a receiving slot for placing a mobile communication device, wherein the mobile communication device comprises at least one antenna for operating in at least one communication band; and a wireless transceiver module, wherein When the mobile communication device is placed in the accommodating slot, the wireless transceiver module receives the electromagnetic wave in the at least one communication frequency band and generates at least one RF signal, and the wireless transceiver module couples the at least one RF signal to The at least one antenna in the mobile communication device. The expansion device of claim 1, wherein the at least one communication frequency band comprises a first communication frequency band, the at least one RF signal comprises a first RF signal, and the wireless transceiver module comprises: a first expansion An antenna that receives electromagnetic waves in the first communication band to generate a first received signal; and a first transceiver that processes the first received signal to generate the first RF signal; and a first coupled antenna And coupling the first RF signal to the at least one antenna. The expansion device of claim 2, wherein the first transceiver comprises: a filtering unit connected to the first extension antenna for performing a filtering operation on the first receiving signal; and an amplifying unit, Connected between the filtering unit and the first coupling antenna, The signal from the filtering unit is amplified to generate the first RF signal. The expansion device of claim 2, wherein the first communication frequency band comprises a plurality of sub-bands, and the first transceiver comprises: a plurality of filtering units respectively connected to the first coupling antenna for respectively respectively The first receiving signal performs a filtering operation, wherein the passbands of the filtering units correspond to the sub-bands; the plurality of amplifying units are connected to the filtering units for amplifying the signals from the filtering units; and a switching switch, Between the amplifying unit and the first coupling antenna, the signal from the amplifying units is selected as the first RF signal, and the first RF signal is transmitted to the first coupling antenna. The expansion device of claim 2, wherein the at least one communication frequency band further comprises a second communication frequency band, the at least one RF signal further comprises a second RF signal, and the wireless transceiver module further comprises: a second extension antenna for receiving electromagnetic waves in the second communication band to generate a second reception signal; a second transceiver coupled to the second extension antenna for processing the second reception signal to generate the a second RF signal; and a second coupled antenna coupled to the second transceiver for coupling the second RF signal to the at least one antenna. The expansion device of claim 2, wherein the at least one communication frequency band further comprises a second communication frequency band, and the at least one RF signal further comprises a second The RF signal, the first antenna further receives the electromagnetic wave in the second communication band to generate a second receiving signal, and the wireless transceiver module further includes: a second transceiver; an integrated switch electrically connected to the a first extension antenna, the first transceiver and the second transceiver, wherein the expansion switch conducts the first extension antenna to one of the first transceiver and the second transceiver, and when the expansion switch When the first extended antenna is turned on to the second transceiver, the second transceiver processes the second received signal to generate the second RF signal; and a second coupled antenna is electrically connected to the second transceiver And coupling the second RF signal to the at least one antenna. The expansion device of claim 6, wherein the at least one antenna comprises a first antenna and a second antenna, and the first coupling antenna couples the first RF signal to the first antenna The second coupled antenna couples the second RF signal to the second antenna. The expansion device of claim 6, wherein the at least one antenna comprises a first antenna, and the first coupling antenna couples the first RF signal to the first antenna, the second coupling antenna The second RF signal is coupled to the first antenna. The expansion device of claim 1, wherein the at least one radio frequency signal comprises a first radio frequency signal and a second radio frequency signal, and the radio transceiver module transmits the first radio frequency signal through a first coupling antenna. Coupling to a first antenna of the at least one antenna, and the wireless transceiver module transmits the second antenna through a second coupling antenna An RF signal is coupled to the first antenna. The expansion device of claim 9, wherein the mobile communication device further comprises: a first wireless communication module comprising a plurality of primary channels and a plurality of diversity channels; a second wireless communication module; and a Integrating a switch, electrically connecting the first antenna, the diversity channels, and the second wireless signal processing module, and conducting the first antenna to the second wireless signal processing module or the plurality of diversity channels One of them. The expansion device of claim 10, wherein the at least one RF signal further comprises a third RF signal, the wireless transceiver module coupling the third RF signal to the at least one antenna via a third coupling antenna a second antenna, and the mobile communication device further includes: a main switch electrically connecting the second antenna and the main channels, and conducting the second antenna to one of the main channels . The expansion device of claim 10, wherein the at least one RF signal further comprises a fourth RF signal, the wireless transceiver module coupling the fourth RF signal to the at least one antenna via a fourth coupling antenna A third antenna, and the mobile communication device further includes a third wireless signal processing module electrically connected to the third antenna.