CN102324949A - Mobile communication terminal - Google Patents
Mobile communication terminal Download PDFInfo
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- CN102324949A CN102324949A CN201110269189A CN201110269189A CN102324949A CN 102324949 A CN102324949 A CN 102324949A CN 201110269189 A CN201110269189 A CN 201110269189A CN 201110269189 A CN201110269189 A CN 201110269189A CN 102324949 A CN102324949 A CN 102324949A
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Abstract
The invention discloses a mobile communication terminal which comprises a first matching unit, a second matching unit and a coupling unit, wherein the first matching unit is used for receiving Bluetooth radio frequency signals and generating corresponding Bluetooth enable control signals to form a first on-off logic path; the second matching unit is used for receiving Wifi (Wireless Fidelity) radio frequency signals and generating corresponding Wifi enable control signals to form a second on-off logic path; and the coupling unit is connected with the first matching unit and the second matching unit respectively and is used for coupling the first on-off logic path and the second on-off logic path to an antenna, so that Wifi and Bluetooth shares the antenna to communicate. The technical scheme of the invention has the advantage that Wifi and Bluetooth shares the antenna to communicate by coupling the first on-off logic path and the second on-off logic path to the same antenna. The technical scheme has high coupling degree and improves the distance and the quality of effective communication.
Description
Technical field
The present invention relates to mobile communication equipment, relate in particular to the mobile communication terminal of a kind of Wifi radiofrequency signal and Bluetooth RF signal common antenna.
Background technology
Present stage, individual mobile communication terminal is all standard configuration Wifi and bluetooth usually, owing to generally adopt the carrier frequency of 2.4GHz at present in the industry, communicates so both are the shared same antenna basically; Along with popularizing fast of Wifi online; The scene that the user needs Wifi and bluetooth to work simultaneously sometimes; Utilize Wifi online or the like when for example listening bluetooth earphone, this scene to the isolation of radio frequency path, disturb mutually and communication quality all has higher requirement.
Prior art generally adopts the scheme of switch and coupler combination, and still, the shortcoming of this scheme is that himself degree of coupling is not enough, is prone to cause when a shared antenna communicates, and the effective communication distance of Bluetooth RF signal sharply shortens.
Summary of the invention
The technical problem that the present invention will solve is; To the not high defective that shortens with effective communication distance of the degree of coupling of prior art, a kind of cost is low, simple, isolation is big and effective communication distance the is long Wifi radiofrequency signal and the mobile communication terminal of Bluetooth RF signal common antenna are provided.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of mobile communication terminal, comprising:
First matching unit is used to receive the Bluetooth RF signal, and the bluetooth-enabled control signal of the correspondence that produces, to form the first switching logic path;
Second matching unit is used to receive the Wifi radiofrequency signal, and produces corresponding Wifi and enable control signal, to form the second switch logical path;
Coupling unit is connected with said second matching unit with said first matching unit respectively, is used for said first switching logic path and said second switch logical path are coupled to antenna, communicates to realize Wifi and the shared said antenna of bluetooth.
In mobile communication terminal of the present invention, said Bluetooth RF signal is through the QPSK modulation.
In mobile communication terminal of the present invention, said Wifi radiofrequency signal is through the frequency shift keying modulation.
In mobile communication terminal of the present invention, said coupling unit comprises impedance transducer and LC discrete device.
In mobile communication terminal of the present invention; Said impedance transducer comprises first input end, second input, first earth terminal, second earth terminal and output; Wherein, The said first switching logic path is coupled to first input end, and said second switch logical path is coupled to said second input, and said output is coupled to said antenna.
In mobile communication terminal of the present invention, said first switching logic path and said second switch logical path are made up of diode.
In mobile communication terminal of the present invention, the resonance frequency of said first matching unit and said second matching unit is 2.4GHz.
In mobile communication terminal of the present invention; First matching unit specifically comprises bluetooth input, bluetooth-enabled control end, capacitor C 1, capacitor C 3, capacitor C 5, inductance L 1, magnetic bead B1, magnetic bead B3, magnetic bead B4, resistance R 1, resistance R 3, diode D1 and diode D4, and wherein, an end of capacitor C 1 is connected with the bluetooth input; The other end of capacitor C 1 is connected with the negative electrode of diode D1 and an end of inductance L 1 respectively; The other end ground connection of inductance L 1, the anode of diode D1 are connected with the end of magnetic bead B1 and an end of capacitor C 3 respectively, and the other end of magnetic bead B1 is connected with an end of resistance R 1; The other end of capacitor C 3 is connected with an end of capacitor C 5; The other end of capacitor C 5 is connected with the anode of diode D4 and the end of magnetic bead B3 respectively, and the other end of magnetic bead B3 is connected with an end of resistance R 3, and the other end of resistance R 3 is connected with the bluetooth-enabled control end with the other end of resistance R I respectively; The negative electrode of diode D4 is connected with the end of magnetic bead B4, the other end ground connection of magnetic bead B4.
In mobile communication terminal of the present invention; Said second matching unit comprises that specifically Wifi input, Wifi enable control end, capacitor C 2, capacitor C 6, inductance L 2, inductance L 4, magnetic bead B2, resistance R 2, diode D2 and diode D3, and wherein, an end of capacitor C 6 is connected with the Wifi input; The other end of capacitor C 6 is connected with the negative electrode of diode D3 and an end of inductance L 4 respectively; The other end ground connection of inductance L 4, the anode of diode D3 are connected with an end of capacitor C 2 and the end of magnetic bead B2 respectively, and the other end of magnetic bead B2 is connected with an end of resistance R 2; The other end of resistance R 2 enables control end with Wifi and is connected; The other end of capacitor C 2 is connected with an end of inductance L 2, and the other end of inductance L 2 is connected with the anode of diode D2, the minus earth of diode D2.
In mobile communication terminal of the present invention; Said coupling unit specifically comprises impedance transducer and capacitor C 4; Wherein, the first input end of said impedance transducer is connected with the other end of capacitor C 2 and an end of inductance L 2 respectively, and second input of said impedance transducer is connected with the end of magnetic bead B4 with the negative electrode of diode D4 respectively; The output of said impedance transducer is connected with an end of capacitor C 4, and the other end of capacitor C 4 is connected with antenna.
The technical scheme of embodiment of the present invention; Has following beneficial effect: through the first switching logic path and second switch logical path are coupled to the same antenna; Realize that Wifi and bluetooth common antenna communicate, this technical scheme degree of coupling height and improved the distance and the quality of efficient communication.
First switching logic path of the present invention and second switch logical path are made up of diode, and adopt impedance transducer and LC discrete device to constitute coupling path, thereby make present technique scheme cost low, simple, and differential loss is little and be easy to realization.
Description of drawings
To combine accompanying drawing and embodiment that the present invention is described further below, in the accompanying drawing:
Fig. 1 is the structural representation of mobile communication terminal embodiment one of the present invention;
Fig. 2 is the circuit diagram of mobile communication terminal embodiment two of the present invention.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Should be noted that this mobile communication terminal is in order to realize that bluetooth and Wifi communicate with the same antenna simultaneously, communication involved in the present invention includes but not limited to radio communication, and those skilled in the art should understand, and repeats no more here.
See also Fig. 1; Fig. 1 is the structural representation of mobile communication terminal embodiment one of the present invention; As shown in Figure 1; This mobile communication terminal comprises first matching unit 1, second matching unit 2 and the coupling unit 3 that is connected with second matching unit 2 with first matching unit 1 respectively, and following mask body is introduced the effect of various piece:
First matching unit is used to receive the Bluetooth RF signal, and the bluetooth-enabled control signal of the correspondence that produces, and to form the first switching logic path, the resonance frequency of this first matching unit is 2.4GHz.
Preferably, said Bluetooth RF signal is through the QPSK modulation.
Second matching unit is used to receive the Wifi radiofrequency signal, and produces corresponding Wifi and enable control signal, and to form the second switch logical path, the resonance frequency of this second matching unit is 2.4GHz.
Preferably, said Wifi radiofrequency signal is through the frequency shift keying modulation.
Preferably, said first switching logic path and said second switch logical path are made up of diode.
Coupling unit is used for said first switching logic path and said second switch logical path are coupled to antenna, communicates to realize Wifi and the shared said antenna of bluetooth.
Preferably, said coupling unit comprises impedance transducer and LC discrete device, should be noted that in the present invention, and be 50 ohm through the resistance value after the conversion of impedance rheostat, so that antenna can receive Bluetooth RF signal and/or Wifi radiofrequency signal.
Preferably; Said impedance transducer comprises first input end, second input, first earth terminal, second earth terminal and output; Wherein, The said first switching logic path is coupled to first input end, and said second switch logical path is coupled to said second input, and said output is coupled to said antenna.
See also Fig. 2; Fig. 2 is the circuit diagram of mobile communication terminal embodiment two of the present invention; As shown in Figure 2; This circuit comprises that specifically bluetooth input BT, bluetooth-enabled control end BT-enable, Wifi input Wifi, Wifi enable control end Wifi-enable, capacitor C 1, capacitor C 2, capacitor C 3, capacitor C 4, capacitor C 5, capacitor C 6, inductance L 1, inductance L 2, inductance L 4, magnetic bead B1, magnetic bead B2, magnetic bead B3, magnetic bead B4, resistance R 1, resistance R 2, resistance R 3, diode D1, diode D2, diode D3, diode D4 and impedance transducer, and said impedance transducer comprises first input end (1), second input (2), first earth terminal (3), second earth terminal (4) and output (5).
Wherein, One end of capacitor C 1 is connected with bluetooth input BT, and the other end of capacitor C 1 is connected the other end ground connection of inductance L 1 with the negative electrode of diode D1 and an end of inductance L 1 respectively; The anode of diode D1 is connected with the end of magnetic bead B1 and an end of capacitor C 3 respectively; The other end of magnetic bead B1 is connected with an end of resistance R 1, and the other end of capacitor C 3 is connected with an end of capacitor C 5, and the other end of capacitor C 5 is connected with the anode of diode D4 and the end of magnetic bead B3 respectively; The other end of magnetic bead B3 is connected with an end of resistance R 3; The other end resistance of resistance R 3 is connected with bluetooth-enabled control end BT-enable with the other end of RI respectively, and the negative electrode of diode D4 is connected with the end of magnetic bead B4, the other end ground connection of magnetic bead B4.
Wherein, One end of capacitor C 6 is connected with Wifi input Wifi, and the other end of capacitor C 6 is connected the other end ground connection of inductance L 4 with the negative electrode of diode D3 and an end of inductance L 4 respectively; The anode of diode D3 is connected with an end of capacitor C 2 and the end of magnetic bead B2 respectively; The other end of magnetic bead B2 is connected with an end of resistance R 2, and the other end of resistance R 2 enables control end Wifi-enable with Wifi and is connected, and the other end of capacitor C 2 is connected with an end of inductance L 2; The other end of inductance L 2 is connected with the anode of diode D2, the minus earth of diode D2.
Wherein, The first input end of said impedance transducer (1) is connected with the other end of capacitor C 2 and an end of inductance L 2 respectively; Second input (2) of said impedance transducer is connected with the end of magnetic bead B4 with the negative electrode of diode D4 respectively; The output of said impedance transducer (5) is connected with an end of capacitor C 4, and the other end of capacitor C 4 is connected with antenna.
In the present embodiment, impedance transducer is the barron device spare in 50 Europe-50 Europe, R1=R2=R3=100K; C1=15pF, C2=3pF, C3=3pF, C4=22pF, C5=3pF, C6=15pF; L1=5.1NH, L4=5.6NH should be noted that inductance L 2 is Primary Components that bluetooth and Wifi realize coupling, and the visual concrete circuit of user is done corresponding adjustment, and default value is NC, and those skilled in the art should understand, and repeats no more here.
Should be noted that in the present embodiment it is effective that Wifi enables control end Wifi-enable high level, bluetooth-enabled control end BT-enable high level is effective.
Specifically describe the course of work of this circuit diagram below:
When 1, launching Wifi separately, it is high level that Wifi enables control end Wifi-enable, and through inductance L 4 formation loops, diode D3 conducting is according to the annexation of this circuit diagram, so that resonance on the operating frequency of 2.4G, is realized the coupling of input and output; Bluetooth-enabled control end BT-enable is a low level simultaneously; BT is unsettled for the bluetooth input.
When 2, launching BT separately, bluetooth-enabled control end BT-enable is a high level, constitutes the loop through inductance L 1 with magnetic bead B4; Diode D1 and diode D4 conducting; According to the annexation of this circuit diagram, so that resonance on the operating frequency of 2.4G, is realized the coupling of input and output; It is low level that while Wifi enables control end Wifi-enable; Wifi is unsettled for the Wifi input.
When 3, launching Wifi and BT simultaneously, bluetooth-enabled control end BT-enable and Wifi enable control end Wifi-enable and are high level simultaneously, also just exactly Bluetooth RF signal and Wifi radiofrequency signal are added to above the public antenna simultaneously; But because the Wifi radiofrequency signal is 1 watt, and the Bluetooth RF signal is less than 100 milliwatts; Therefore, with respect to the Bluetooth RF signal, the Wifi radiofrequency signal belongs to strong signal; So; In this programme, the Wifi radiofrequency signal is clamped down on this voltage of signals amplitude about 0.2V after decaying through diode D2 amplitude limit.Thereby the order of magnitude near Bluetooth RF voltage of signals amplitude; At last; The Bluetooth RF signal is through the QPSK modulation, and the Wifi radiofrequency signal is passed through the frequency shift keying modulation, thereby realizes that both communicate by letter; And the degree of coupling of this scheme is also brought up to greater than 3dB, realizes longer-distance communication.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Claims (10)
1. a mobile communication terminal is characterized in that, comprising:
First matching unit is used to receive the Bluetooth RF signal, and the bluetooth-enabled control signal of the correspondence that produces, to form the first switching logic path;
Second matching unit is used to receive the Wifi radiofrequency signal, and produces corresponding Wifi and enable control signal, to form the second switch logical path;
Coupling unit is connected with said second matching unit with said first matching unit respectively, is used for said first switching logic path and said second switch logical path are coupled to antenna, communicates to realize Wifi and the shared said antenna of bluetooth.
2. mobile communication terminal according to claim 1 is characterized in that, said Bluetooth RF signal is through the QPSK modulation.
3. mobile communication terminal according to claim 1 is characterized in that, said Wifi radiofrequency signal is through the frequency shift keying modulation.
4. according to claim 2 or 3 described mobile communication terminals, it is characterized in that said coupling unit comprises impedance transducer and LC discrete device.
5. mobile communication terminal according to claim 4; It is characterized in that; Said impedance transducer comprises first input end, second input, first earth terminal, second earth terminal and output, and wherein, the said first switching logic path is coupled to first input end; Said second switch logical path is coupled to said second input, and said output is coupled to said antenna.
6. mobile communication terminal according to claim 5 is characterized in that, said first switching logic path and said second switch logical path are made up of diode.
7. mobile communication terminal according to claim 6 is characterized in that, the resonance frequency of said first matching unit and said second matching unit is 2.4GHz.
8. mobile communication terminal according to claim 7; It is characterized in that; First matching unit specifically comprises bluetooth input, bluetooth-enabled control end, capacitor C 1, capacitor C 3, capacitor C 5, inductance L 1, magnetic bead B1, magnetic bead B3, magnetic bead B4, resistance R 1, resistance R 3, diode D1 and diode D4, and wherein, an end of capacitor C 1 is connected with the bluetooth input; The other end of capacitor C 1 is connected with the negative electrode of diode D1 and an end of inductance L 1 respectively; The other end ground connection of inductance L 1, the anode of diode D1 are connected with the end of magnetic bead B1 and an end of capacitor C 3 respectively, and the other end of magnetic bead B1 is connected with an end of resistance R 1; The other end of capacitor C 3 is connected with an end of capacitor C 5; The other end of capacitor C 5 is connected with the anode of diode D4 and the end of magnetic bead B3 respectively, and the other end of magnetic bead B3 is connected with an end of resistance R 3, and the other end of resistance R 3 is connected with the bluetooth-enabled control end with the other end of resistance R I respectively; The negative electrode of diode D4 is connected with the end of magnetic bead B4, the other end ground connection of magnetic bead B4.
9. mobile communication terminal according to claim 8 is characterized in that, said second matching unit comprises that specifically Wifi input, Wifi enable control end, capacitor C 2, capacitor C 6, inductance L 2, inductance L 4, magnetic bead B2, resistance R 2, diode D2 and diode D3; Wherein, One end of capacitor C 6 is connected with the Wifi input, and the other end of capacitor C 6 is connected the other end ground connection of inductance L 4 with the negative electrode of diode D 3 and an end of inductance L 4 respectively; The anode of diode D3 is connected with an end of capacitor C 2 and the end of magnetic bead B2 respectively; The other end of magnetic bead B2 is connected with an end of resistance R 2, and the other end of resistance R 2 enables control end with Wifi and is connected, and the other end of capacitor C 2 is connected with an end of inductance L 2; The other end of inductance L 2 is connected with the anode of diode D2, the minus earth of diode D2.
10. mobile communication terminal according to claim 9; It is characterized in that said coupling unit specifically comprises impedance transducer and capacitor C 4, wherein; The first input end of said impedance transducer is connected with the other end of capacitor C 2 and an end of inductance L 2 respectively; Second input of said impedance transducer is connected with the end of magnetic bead B4 with the negative electrode of diode D4 respectively, and the output of said impedance transducer is connected with an end of capacitor C 4, and the other end of capacitor C 4 is connected with antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102691890A CN102324949B (en) | 2011-09-13 | 2011-09-13 | Mobile communication terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102691890A CN102324949B (en) | 2011-09-13 | 2011-09-13 | Mobile communication terminal |
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| CN102324949A true CN102324949A (en) | 2012-01-18 |
| CN102324949B CN102324949B (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102691890A Expired - Fee Related CN102324949B (en) | 2011-09-13 | 2011-09-13 | Mobile communication terminal |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017113216A1 (en) * | 2015-12-30 | 2017-07-06 | 华为技术有限公司 | Communication signal transceiving component, terminal and signal transceiving method |
| CN111697979A (en) * | 2020-06-30 | 2020-09-22 | 广东虹勤通讯技术有限公司 | Terminal |
| CN115865139A (en) * | 2023-02-21 | 2023-03-28 | 杭州宇泛智能科技有限公司 | NFC debugging device and electronic equipment |
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| CN101014103A (en) * | 2007-02-13 | 2007-08-08 | 鼎芯通讯（上海）有限公司 | Digital multimedia reception device |
| CN101030786A (en) * | 2006-03-01 | 2007-09-05 | 华硕电脑股份有限公司 | Portable electronic device |
| CN201927703U (en) * | 2011-01-13 | 2011-08-10 | 深圳市同洲电子股份有限公司 | Antenna device and mobile terminal |
| CN102263857A (en) * | 2011-07-12 | 2011-11-30 | 康佳集团股份有限公司 | Shared antenna circuit for mobile terminal |
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2011
- 2011-09-13 CN CN2011102691890A patent/CN102324949B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101030786A (en) * | 2006-03-01 | 2007-09-05 | 华硕电脑股份有限公司 | Portable electronic device |
| CN101014103A (en) * | 2007-02-13 | 2007-08-08 | 鼎芯通讯（上海）有限公司 | Digital multimedia reception device |
| CN201927703U (en) * | 2011-01-13 | 2011-08-10 | 深圳市同洲电子股份有限公司 | Antenna device and mobile terminal |
| CN102263857A (en) * | 2011-07-12 | 2011-11-30 | 康佳集团股份有限公司 | Shared antenna circuit for mobile terminal |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017113216A1 (en) * | 2015-12-30 | 2017-07-06 | 华为技术有限公司 | Communication signal transceiving component, terminal and signal transceiving method |
| CN111697979A (en) * | 2020-06-30 | 2020-09-22 | 广东虹勤通讯技术有限公司 | Terminal |
| CN115865139A (en) * | 2023-02-21 | 2023-03-28 | 杭州宇泛智能科技有限公司 | NFC debugging device and electronic equipment |
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| CN102324949B (en) | 2013-12-25 |
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