CN104124988A - Antenna connector module and antenna switching method, and electronic device applying antenna connector module and antenna switching method - Google Patents
Antenna connector module and antenna switching method, and electronic device applying antenna connector module and antenna switching method Download PDFInfo
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- CN104124988A CN104124988A CN201310141714.XA CN201310141714A CN104124988A CN 104124988 A CN104124988 A CN 104124988A CN 201310141714 A CN201310141714 A CN 201310141714A CN 104124988 A CN104124988 A CN 104124988A
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Abstract
Disclosed are an antenna connector module, an antenna switching method and an electronic device applying the antenna connector module and the antenna switching method. The antenna connector module is coupled to a communication transmission circuit and a power supply. The communication transmission circuit and the antenna connector module form a signal transmission path. The antenna connector module includes a detection unit and a switching unit. The detection unit is used for detecting a supplying state of a power supply to an external antenna module and generating detection signals on the basis. The switching unit is coupled to the detection unit. The switching unit switches a signal transmission path of the communication transmission circuit to the external antenna module or a built-in antenna module according to the detection signals. Because the antenna connector module does not need actuation of a mechanical mechanism to switch the signal transmission path, signal transmission loss can be reduced effectively.
Description
[technical field]
The present invention relates to a kind of method of antenna connector module, antenna switching and apply its electronic installation, be specifically related to a kind of antenna connector module of electronic type, the method that antenna switches and the electronic installation of applying it.
[background technology]
Along with developing rapidly of wireless telecommunications science and technology, in general electronic installation, provide the wireless transmission function of different size (such as WiFi, GPS, 3G or bluetooth (blue tooth) etc.) to become the primary demand of electronic installation.
Generally speaking, in the electronic installation with wireless transmission function, conventionally can comprise a built-in antenna, wherein electronic installation can carry out the transmission of wireless signal through built-in antenna.But, being limited to dimensions or the other factors of electronic installation, the signal transmission efficiency of built-in antenna often has its restriction.Therefore, in some electronic installations, also provide the antenna connector module in order to expand, to make user can utilize external antenna to carry out the transmission of wireless signal, so as to strengthening the through-put power of wireless signal.
In existing antenna connector module, generally can be divided into the antenna connector module of mechanical antenna connector module and electronic type.Wherein, mechanical antenna connector module is to utilize the start of mechanical structure to carry out switching signal transmission path to built-in antenna or external antenna, the benefit of the antenna connector module of this type is that design is comparatively simple, and in the time that external antenna inserts, can directly switch to external antenna.But the shortcoming of mechanical antenna connector module is the switching mechanism between antenna connector module and external antenna and may causes the loss (loss) of wireless signal higher.
On the other hand, utilize the benefit of the antenna connector module of electronic type to be that the loss of its signal transmission is lower.But due to the antenna connector module of electronic type and cannot detect external antenna and whether be connected to electronic installation, therefore user must insert after external antenna, recycling software program is set, so that signal transmission path is switched to external antenna.Thus, suitable inconvenience for user.
[summary of the invention]
The invention provides a kind of method of antenna connector module, antenna switching and apply its electronic installation, described antenna connector module can automatically be detected external antenna and whether be connected to electronic installation, and carrys out switching signal transmission path in the mode of electronic type.
Antenna connector module of the present invention is coupled to communication transfer circuit and power supply, and communication transfer circuit and antenna connector module form signal transmission path.Antenna connector module comprises detecting unit and switch unit.Detecting unit is in order to detect the supply status of power supply to external Anneta module, and produces according to this detection signal.Switch unit couples detecting unit, and the signal transmission path that wherein switch unit switches communication transfer circuit according to detection signal is to external antenna module or built-in antenna module.
In one embodiment of this invention, above-mentioned antenna connector module also comprises connecting the antenna connection terminal mouth of external antenna module, and detecting unit comprises resistance.The first end of resistance couples power supply, and the second end of resistance couples antenna connection terminal mouth, wherein in the time that external antenna module is connected to antenna connection terminal mouth, power generation drive current via resistance to external antenna module.
In one embodiment of this invention, above-mentioned detecting unit also comprises comparator.The positive input terminal of comparator couples the first end of resistance, and the negative input end of comparator couples the second end of resistance, and wherein comparator produces detection signal according to the voltage difference at resistance two ends.
In one embodiment of this invention, above-mentioned detection signal comprises activation detection signal and forbidden energy detection signal, in the time that the voltage difference at resistance two ends is more than or equal to default value, comparator reacts on the voltage difference at resistance two ends and produces activation detection signal, and in the time that the voltage difference at resistance two ends is less than default value, comparator reacts on the voltage difference at resistance two ends and produces forbidden energy detection signal.
In one embodiment of this invention, above-mentioned switch unit switches to external antenna module according to activation detection signal by signal transmission path, and switch unit switches to built-in antenna module according to forbidden energy detection signal by signal transmission path.
Electronic installation of the present invention comprises power supply, built-in antenna module, communication transfer circuit and antenna connector module.Communication transfer circuit is in order to via signal transmission path transmitting/receiving wireless signal, and carries out according to this signal processing.Antenna connector module couples communication transfer circuit and power supply, and communication transfer circuit and antenna connector module form signal transmission path, and wherein antenna connector module comprises detecting unit and switch unit.Detecting unit is in order to detect the supply status of power supply to external Anneta module, and produces according to this detection signal.Switch unit couples detecting unit, and the signal transmission path that wherein switch unit switches communication transfer circuit according to detection signal is to external antenna module or built-in antenna module.
The method that antenna of the present invention switches comprises the following steps: power supply is provided; Borrow power supply whether to exist with detecting external antenna module the supply status of external Anneta module, and produce detection signal according to this; And according to detection signal, switching signal transmission path is to external antenna module or built-in antenna module.
In one embodiment of this invention, the method that above-mentioned antenna switches is applicable to antenna connector module, and antenna connector module also comprises connecting the antenna connection terminal mouth of external antenna module, wherein provide the step of power supply to comprise: in the time that external antenna module is connected to antenna connection terminal mouth, produce drive current via resistance to external antenna module.
In one embodiment of this invention, the above-mentioned step of borrowing power supply whether to exist with detecting external antenna module the supply status of external Anneta module comprises: produce detection signal according to the voltage difference at resistance two ends.
In one embodiment of this invention, the step that the above-mentioned voltage difference according to these resistance two ends produces this detection signal comprises: whether the voltage difference that judges resistance two ends is more than or equal to default value; In the time that the voltage difference at resistance two ends is more than or equal to default value, reacts on the voltage difference at resistance two ends and produce activation detection signal; And in the time that the voltage difference at resistance two ends is less than default value, reacts on the voltage difference at resistance two ends and produce forbidden energy detection signal.
In one embodiment of this invention, above-mentioned according to this detection signal, switching signal transmission path, to the step of external antenna module or built-in antenna module, comprising: according to activation detection signal switching signal transmission path to external antenna module; And according to forbidden energy detection signal switching signal transmission path to built-in antenna module.
Compared to prior art, the embodiment of the present invention proposes a kind of electronic installation, antenna connector module and antenna switching method thereof, wherein said antenna connector module can be detected external antenna module by judging the output state of power supply and whether be connected to electronic installation, and send according to this detection signal and switch the signal transmission path of electronic installation, to utilize external antenna module or built-in antenna module transmitting wireless signals.Carry out switching signal transmission path because described antenna connector module does not need the start that sees through mechanical structure, therefore can effectively reduce the loss of signal transmission.
[brief description of the drawings]
Fig. 1 is the electronic installation of one embodiment of the invention and the schematic diagram of antenna connector module thereof.
Fig. 2 is the circuit diagram of the antenna connector module of one embodiment of the invention.
Fig. 3 is the flow chart of steps of the antenna switching method of one embodiment of the invention.
Fig. 4 is the flow chart of steps of the antenna switching method of another embodiment of the present invention.
[embodiment]
The embodiment of the present invention proposes a kind of electronic installation, antenna connector module and antenna switching method thereof, wherein said antenna connector module can be detected external antenna module by judging the output state of power supply and whether be connected to electronic installation, and send according to this detection signal and switch the signal transmission path of electronic installation, to utilize external antenna module or built-in antenna module transmitting wireless signals.Carry out switching signal transmission path because described antenna connector module does not need the start that sees through mechanical structure, therefore can effectively reduce the loss (loss) of signal transmission.In addition, compared to the antenna connector module of general electronic type, described antenna connector module need not utilize extra software program to carry out the switching of control signal transmission path, and then has promoted the ease of use of electronic installation.For the content that makes this exposure more easily understands, below the example that really can implement according to this as this exposure especially exemplified by embodiment.In addition, all possibility parts are used the assembly/member/step of same numeral to represent identical or similar portions in graphic and execution mode.
Fig. 1 is the electronic installation of one embodiment of the invention and the schematic diagram of antenna connector module thereof.Please refer to Fig. 1, electronic installation 100 comprises power supply PWR, built-in antenna module 110, communication transfer circuit 120 and antenna connector module 130.In the present embodiment, electronic installation 100 can be for example the electronic installation that desktop PC, mobile computer, flat computer, personal digital assistant (personal digital assistant, PDA) or intelligent mobile phone (smart phone) etc. have wireless transmission function.Communication transfer circuit 120 can be for example radio-frequency (RF) front-end circuit (RF front-end circuit), and it can be in order to carry out the signal processing such as conversion and modulation (modulation) between wireless signal Sr and fundamental frequency signal Sb.For instance, communication transfer circuit 120 can be the signal form of fundamental frequency signal Sb by received wireless signal Sr frequency reducing demodulation (de-modulation), and by fundamental frequency signal Sb raising frequency waiting for transmission and be tuned as the signal form of wireless signal Sr.
Antenna connector module 130 can provide an interface that connects external antenna module 110 ', so that the signal circuit 120 of electronic installation 100 optionally utilizes built-in antenna module 110 or external antenna module 110 ' come transmitting/receiving wireless signal Sr, so as to the usefulness of raising radio transmission.Wherein, external antenna module 110 ' is for example gps antenna module.
Specifically, antenna connector module 130 couples communication transfer circuit 120 and power supply PWR, and wherein antenna connector module 130 can judge whether external antenna module 110 ' is connected to electronic installation 100 by the output state of detecting power supply PWR.When antenna connector module 130 detects external antenna module 110 ' while being connected to electronic installation 100, antenna connector module 130 can form a bars transmission path (as path P c → antenna connector module 130 → path P 1) between external Anneta module 110 ' and communication transfer circuit 120, so that communication transfer circuit 120 utilizes external antenna 110 ' come transmitting/receiving wireless signal Sr.Otherwise, when antenna connector module 130 detects external antenna module 110 ' while not being connected to electronic installation 100,130 of antenna connector modules can switch to signal transmission path built-in antenna module 110, are for example path P c → antenna connector module 130 → path P 2 so that communication transfer circuit 120 utilizes built-in antenna 110 to carry out transmitting/receiving wireless signal Sr(signal transmission path now).
In the present embodiment, antenna connector module 130 comprises detecting unit 132 and switch unit 134.Detecting unit 132 is in order to detect the supply status of power supply PWR to external Anneta module 110 ', and produces according to this detection signal S_d.Switch unit 134 couples detecting unit 132, and the detection signal S_d that wherein switch unit 134 produces according to detecting unit 132 and the signal transmission path that switches communication transfer circuit 120 are to external antenna module 110 ' or built-in antenna module 110.
Specifically,, due in the time that external Anneta module 110 ' is connected to electronic installation 100, power supply PWR can produce drive current I_d and drive external antenna module 110 '.In other words,, in the time that power supply PWR produces drive current I_d, represent that external antenna module 110 ' has been connected to electronic installation 110 '.In particular, antenna connector module 130 has respectively a corresponding Port (not illustrating) with external antenna module 110 ', and wherein antenna connector module 130 can see through Port with external antenna module 110 ' and mutually be electrically connected.In the time that external antenna module 110 ' is connected to antenna connector module 110 through connectivity port, the drive current I_d that power supply PWR produces can provide to external antenna module 130 through the Port of detecting unit 132 and correspondence.
Based on above-mentioned start, detecting unit 132 can by detecting power supply PWR, whether output driving current I_d judges whether external antenna module 110 ' is connected to electronic installation 100, and export according to this corresponding detection signal S_d and control switch unit 134 so that switch unit 134 reacts on detection signal S_d by signal transmission path.Under the framework of described antenna connector module 130, because not needing to see through specific mechanical structure, antenna connector module 130 switches the signal transmission path of communication transfer circuit 120, therefore can avoid entity circuit may cause because of the difference of contact condition the phenomenon of impedance mismatch (impedance mismatch) in the time switching, and then effectively reduce the loss of signal transmission.
Configuration that it should be noted that power supply PWR is in the present embodiment only an example.For instance, in other embodiments, power supply PWR is also configurable among antenna connector module 130, and the present invention is not as limit.
For the clearer explanation embodiment of the present invention, the circuit diagram of the antenna connector module that Fig. 2 is one embodiment of the invention.Please refer to Fig. 2, antenna connector module 130 also comprises connecting the antenna connection terminal mouth CP of external antenna module 110 ', wherein external antenna module 110 ' can contact with antenna connection terminal mouth CP through corresponding connectivity port CP ', to set up the electrical connection between electronic installation 100 and external antenna module 110 ', so as to making external antenna module 110 ' receive drive current I_d and transmitting/receiving wireless signal Sr from electronic installation 100.
Furthermore, external antenna module 110 ' can for example comprise external antenna 112 ', power amplifier 114, resistance R and capacitor C 1, wherein in the time that external antenna module 112 ' is connected to electronic installation 100, power amplifier 114 can receive drive current I_d via resistance R, makes power amplifier 114 react on drive current I_d and activation.Utilize external antenna module 110 to send the viewpoint of wireless signal Sr from electronic installation 100, the power amplifier 114 of activation can receive wireless signal Sr via capacitor C 1, and wireless signal Sr is carried out to the action of power amplification, then the wireless signal Sr after amplifying is seen through to external antenna 112 ' output.On the other hand, utilize external antenna module 110 ' to receive the viewpoint of wireless signal Sr from electronic installation 100, the power amplifier 114 of activation can receive wireless signal Sr from external antenna 112 ', and wireless signal Sr is carried out to the action of power amplification, then export the wireless signal Sr after amplifying to electronic installation 100 via capacitor C 1.
In the present embodiment, detecting unit 132 comprises resistance R d and comparator C OMP.The first end of resistance R d couples power supply PWR, and the second end of resistance R d couples antenna connection terminal mouth CP, wherein, in the time that external antenna module 110 ' is connected to antenna connection terminal mouth CP, the drive current I_d that power supply PWR produces can flow to external antenna module 110 ' via resistance R d and antenna connection terminal mouth CP.The positive input terminal of comparator C OMP couples first end and the power supply PWR of resistance R d, and the negative input end of comparator C OMP couples the second end and the antenna connection terminal mouth CP of resistance R d, and the output of comparator C OMP couples switch unit 134.Particularly, due in the time that power supply PWR produces drive current I_d, the two ends of resistance R d can react on drive current I_d and produce corresponding voltage difference, therefore whether comparator C OMP can exceed a default value by the voltage difference at comparison resistance Rd two ends and judge whether power supply PWR the drive current I_d providing to external antenna module 110 ' is provided, and exports according to this corresponding detection signal S_d.In other words, comparator C OMP can detect external antenna module 110 ' by the voltage difference at comparison resistance Rd two ends and whether be connected to electronic installation 100.
For instance, in the time that external antenna module 110 ' is connected to electronic installation 100, resistance R d can react on drive current I_d and make the voltage difference at its two ends be more than or equal to default value.Now comparator C OMP can to react on the voltage difference at resistance R d two ends and produce activation detection signal S_d(be for example the signal of high potential).On the other hand, in the time that external antenna module 110 ' is not connected to electronic installation 100, because power supply PWR does not produce drive current I_d, so time resistance R d two ends should have in fact and equate or approximate current potential, therefore the voltage difference at resistance R d two ends can be less than default value, and making comparator C OMP react on the voltage difference at resistance R d two ends and producing forbidden energy detection signal S_d(is for example the signal of electronegative potential).
On the other hand, for example diverter switch for utilizing detection signal S_d to control of switch unit 134.Wherein, in the time that switch unit 134 receives activation detection signal S_d, switch unit 134 can switch to external antenna module 110 ' by signal transmission path according to activation detection signal S_d, and signal transmission path is now for example path P c → switch unit 134 → path P 1 → external antenna 112 '.Otherwise, in the time that switch unit 134 receives forbidden energy detection signal S_d, switch unit 134 can switch to built-in antenna module 110 by signal transmission path according to forbidden energy detection signal S_d, and signal transmission path is now for example path P c → switch unit 134 → path P 2 → built-in antenna 112.
Circuit start based on above-mentioned, antenna connector module 130 can realize the connection status of detecting external antenna module 110 ' and carry out the function of automatic switching signal transmission path according to the connection status of external antenna module 110 '.
Subsidiary one carries, and in Fig. 2, capacitor C 2 is in order to the DC noise on filtered signal transmission path with C3.But in other embodiments, affiliated field has knows that the knowledgeable also can utilize other circuit with filtering DC noise function replace capacitor C 2 and C3 conventionally, and the present invention is not as limit.
In addition, the framework of described external antenna module 110 ' is only an example of the present embodiment.The external antenna module that any demand motive electric current I _ d drives is all applicable to the embodiment of the present invention, and the present invention is not also as limit.
Fig. 3 is the flow chart of steps of the antenna switching method of one embodiment of the invention.Please refer to Fig. 3, in the antenna connector module 130 of the method that the antenna of the present embodiment switches applicable to above-mentioned Fig. 1 and Fig. 2.First, power supply (step S310) is provided, and borrow provided power supply to the supply status of external Anneta module (as 110 ') to produce detection signal (detect external antenna module and whether have and be connected to the electronic installation (as 100) under antenna connector module), and produce according to this detection signal (step S320).Then, according to the detection signal that produces and switching signal transmission path to external antenna module or built-in antenna module (as 110).
Fig. 4 is the flow chart of steps of the antenna switching method of another embodiment of the present invention.Please refer to Fig. 4, the method that the antenna of the present embodiment switches is equally in the antenna connector module 130 applicable to above-mentioned Fig. 1 and Fig. 2.First,, in the time that external antenna module (as 110 ') is connected to the antenna connection terminal mouth (as CP) of antenna connector module, produce the drive current (step S410) that flow to external antenna module via resistance.Whether the voltage difference that then, judges resistance two ends is more than or equal to a default value (step S420).In the time that the voltage difference at resistance two ends is more than or equal to default value, produce activation detection signal (step S430), and according to activation detection signal switching signal transmission path to external antenna module (step S440); On the contrary, in the time that the voltage difference at resistance two ends is less than default value, produce forbidden energy detection signal (step S450), and according to forbidden energy detection signal switching signal transmission path to built-in antenna module (as 110) (step S460).
At this, the method that the antenna described in Fig. 3 and Fig. 4 embodiment switches can obtain sufficient support and teaching according to earlier figures 1 and the explanation of Fig. 2, therefore similar or repeat part and repeat no more in this.
In sum, the embodiment of the present invention proposes a kind of electronic installation, antenna connector module and antenna switching method thereof, wherein said antenna connector module can be detected external antenna module by judging the output state of power supply and whether be connected to electronic installation, and send according to this detection signal and switch the signal transmission path of electronic installation, to utilize external antenna module or built-in antenna module transmitting wireless signals.Carry out switching signal transmission path because described antenna connector module does not need the start that sees through mechanical structure, therefore can effectively reduce the loss (loss) of signal transmission.In addition, compared to the antenna connector module of general electronic type, described antenna connector module need not utilize extra software program to carry out the switching of control signal transmission path, and then has promoted the ease of use of electronic installation.
Claims (15)
1. an antenna connector module, is coupled to a communication transfer circuit and a power supply, and this communication transfer circuit and this antenna connector module form a signal transmission path, and this antenna connector module comprises:
One detecting unit, in order to detect the supply status of this power supply to an external antenna module, and produces a detection signal according to this;
One switch unit, couples this detecting unit, and the signal transmission path that wherein this switch unit switches this communication transfer circuit according to this detection signal is to this external antenna module or a built-in antenna module.
2. antenna connector module according to claim 1, is characterized in that, also comprise connecting an antenna connection terminal mouth of this external antenna module, and this detecting unit comprises:
One resistance, its first end couples this power supply, and its second end couples this antenna connection terminal mouth, wherein in the time that this external antenna module is connected to this antenna connection terminal mouth, this power generation one drive current via this resistance to this external antenna module.
3. antenna connector module according to claim 2, is characterized in that, this detecting unit also comprises:
One comparator, its positive input terminal couples the first end of this resistance, and its negative input end couples the second end of this resistance, and wherein this comparator produces this detection signal according to the voltage difference at these resistance two ends.
4. antenna connector module according to claim 3, it is characterized in that, this detection signal comprises an activation detection signal and a forbidden energy detection signal, in the time that the voltage difference at these resistance two ends is more than or equal to a default value, this comparator reacts on the voltage difference at these resistance two ends and produces this activation detection signal, and in the time that the voltage difference at these resistance two ends is less than this default value, this comparator reacts on the voltage difference at these resistance two ends and produces this forbidden energy detection signal.
5. antenna connector module according to claim 1, it is characterized in that, this switch unit switches to this external antenna module according to this activation detection signal by this signal transmission path, and this switch unit switches to this built-in antenna module according to this forbidden energy detection signal by this signal transmission path.
6. an electronic installation, is characterized in that, this electronic installation comprises:
One power supply;
One built-in antenna module;
One communication transfer circuit, in order to via a signal transmission path transmitting/receiving wireless signal, and carries out signal processing according to this;
One antenna connector module, couple this communication transfer circuit and this power supply, this communication transfer circuit and this antenna connector module form this signal transmission path, wherein this antenna connector module comprises: a detecting unit, couple this power supply, in order to detect the supply status of this power supply to an external antenna module, and produce according to this detection signal; One switch unit, couples this detecting unit, and wherein this switch unit switches this signal transmission path to this external antenna module or this built-in antenna module according to this detection signal.
7. electronic installation according to claim 6, is characterized in that, this antenna connector module also comprises connecting an antenna connection terminal mouth of this external antenna module, and this detecting unit comprises:
One resistance, its first end couples this power supply, and its second end couples this antenna connection terminal mouth, wherein in the time that this external antenna module is connected to this antenna connection terminal mouth, this power generation one drive current via this resistance to this external antenna module.
8. electronic installation according to claim 7, is characterized in that, this detecting unit also comprises:
One comparator, its positive input terminal couples the first end of this resistance, and its negative input end couples the second end of this resistance, and wherein this comparator reacts on the voltage difference at these resistance two ends and produces this detection signal.
9. electronic installation according to claim 8, it is characterized in that, this detection signal comprises an activation detection signal and a forbidden energy detection signal, in the time that the voltage difference at these resistance two ends is more than or equal to a default value, this comparator reacts on the voltage difference at these resistance two ends and produces this activation detection signal, and in the time that the voltage difference at these resistance two ends is less than this default value, this comparator reacts on the voltage difference at these resistance two ends and produces this forbidden energy detection signal.
10. electronic installation according to claim 6, it is characterized in that, this switch unit switches to this external antenna module according to this activation detection signal by this signal transmission path, and this switch unit switches to this built-in antenna module according to this forbidden energy detection signal by this signal transmission path.
11. 1 kinds of methods that antenna switches, is characterized in that, the method comprises:
One power supply is provided;
Borrow this power supply whether to exist to detect this external antenna module the supply status of an external antenna module, and produce according to this detection signal;
According to this detection signal, switch a signal transmission path to this external antenna module or a built-in antenna module.
The method that 12. antennas according to claim 11 switch, it is characterized in that, the method is applicable to an antenna connector module, and this antenna connector module also comprises connecting an antenna connection terminal mouth of this external antenna module, the step that this power supply is provided, comprising:
In the time that this external antenna module is connected to this antenna connection terminal mouth, produce a drive current via a resistance to this external antenna module.
The method that 13. antennas according to claim 12 switch, is characterized in that, the step of borrowing this power supply whether to exist to detect this external antenna module the supply status of this external antenna module, comprising:
Produce this detection signal according to the voltage difference at these resistance two ends.
The method that 14. antennas according to claim 13 switch, is characterized in that, produces the step of this detection signal according to the voltage difference at these resistance two ends, comprising:
Whether the voltage difference that judges these resistance two ends is more than or equal to a default value;
In the time that the voltage difference at these resistance two ends is more than or equal to this default value, reacts on the voltage difference at these resistance two ends and produce an activation detection signal;
In the time that the voltage difference at these resistance two ends is less than this default value, reacts on the voltage difference at these resistance two ends and produce a forbidden energy detection signal.
The method that 15. antennas according to claim 11 switch, is characterized in that, according to this detection signal, switches the step of this signal transmission path to this external antenna module or this built-in antenna module, comprising:
Switch this signal transmission path to this external antenna module according to this activation detection signal;
Switch this signal transmission path to this built-in antenna module according to this forbidden energy detection signal.
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| CN201310141714.XA CN104124988B (en) | 2013-04-23 | 2013-04-23 | Antenna connector module and antenna switching method, and electronic device applying antenna connector module and antenna switching method |
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| CN107612583A (en) * | 2017-10-19 | 2018-01-19 | 环鸿电子（昆山）有限公司 | The antenna system and control method of changeable external antenna |
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