CN104009771A - Wireless communication front-end modular circuit and bypass control method - Google Patents
Wireless communication front-end modular circuit and bypass control method Download PDFInfo
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- CN104009771A CN104009771A CN201310058323.1A CN201310058323A CN104009771A CN 104009771 A CN104009771 A CN 104009771A CN 201310058323 A CN201310058323 A CN 201310058323A CN 104009771 A CN104009771 A CN 104009771A
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Abstract
The invention discloses a wireless communication front-end modular circuit which is suitable for being coupled with a baseband module and an antenna module. The baseband module can transmit and receive a digital wireless communication signal and has a transmission element and a receiving element. The wireless communication front-end modular circuit contains a power amplification unit, a low noise amplification unit and a switch unit. The power amplification unit is electrically connected with the transmission element of the baseband module. The low noise amplification unit is electrically connected with the receiving element of the baseband module. The switch unit is respectively coupled with the power amplification unit, the low noise amplification unit and the antenna module, and contains multiple transistors capable of switching between a standard mode and a bypass mode.
Description
Technical field
The invention relates to a kind of front-end module circuit, refer to especially a kind of wireless telecommunications front-end module circuit and bypass control method thereof for digital radio communication system signal.
Background technology
Along with scientific and technological fast development, in modern electronic equipment, it is more and more extensive by what use that wireless communication technique carries out wireless transmission to data, sound, image etc., as mobile phone, panel computer, Digital Television, medical treatment, agricultural etc., incorporate completely among daily life, more therefore for the mankind bring unlimited convenience.Hence one can see that, the object of development wireless telecommunications, and being between user can be in any time, any place exchange information, and need not be subject to the restriction of traditional wire transmission, also therefore allows wireless telecommunications have very important expansionary.
Consult Fig. 1, for generally becoming known for the front-end circuit functions of modules block diagram of WiFi and Bluetooth system, its model is RFFM8202.This front-end circuit module 1 includes power amplification element 12, a switch element being electrically connected to this power amplification element 12 13, an antenna end being electrically connected to this switch element 13 14, a low noise amplification element being electrically connected to this switch element 13 15, bypass circuit 16 in parallel with this low noise amplification element 15 that a transmission end 11, is electrically connected to this transmission end 11, and the receiving terminal 17 of this low noise amplification element 15 of electrical connection.
The bypass circuit 16 of this front-end circuit module 1 can make this low noise amplification element 15 when power output is larger, bypass (Bypass) pattern is provided, signal is no longer amplified through this low noise amplification element 15, and directly bypass exports this receiving terminal 17 to, and then improve the accuracy of transmission of wireless signals and guarantee circuit can not be subject to high power and damage.
From above-mentioned, sayed, although this bypass circuit 16 provide provide bypass mode can make this front-end circuit module 1 possess amplifying signal not and the direct function of output.But this bypass circuit 16 but needs to consume extra electronic component, so cost is higher, hardware area is large, consumed power is large and hardware complexity is high, and does not meet current communication electronic product, the trend of compact and power saving.
Summary of the invention
Therefore, an object of the present invention, is providing a kind of wireless telecommunications front-end module circuit, and the manufacturing cost of this wireless telecommunications front-end module circuit is more traditional cheap, and consumed power, hardware complexity and chip area are all little compared with traditional front-end circuit.
In order to solve the problems of the technologies described above, the invention provides a kind of wireless telecommunications front-end module circuit, be applicable to couple with a fundamental module and an Anneta module respectively, this fundamental module can transmit and receives a digital radio communication system signal and have a conveying element and a receiving element, and this wireless telecommunications front-end module circuit comprises:
One power amplification unit, is electrically connected with the conveying element of this fundamental module;
One low noise amplification unit, is electrically connected with the receiving element of this fundamental module; And
One switch element, respectively with this power amplification unit, this low noise amplification unit, and this Anneta module couples, and include a plurality of transistors that can switch between a mode standard and a bypass mode, when this switch element switches to this mode standard, can be received from the digital radio communication system signal that this power amplification unit exports and be sent to this Anneta module, and when this switch element switches to this bypass mode, this digital radio communication system signal receives and is back to this fundamental module through this plural number Transistor Shunt from this Anneta module.
Further, this switch element has a transmission end transistor, one receiving terminal transistor, an and earth terminal transistor, and each transistor has respectively a first end, one second end, and one in order to control the whether control end of conducting of this first end and this second end, the transistorized first end in this transmission end and this power amplification unit couple, to receive this digital radio communication system signal, and its second end and this Anneta module couple to export this digital radio communication system signal, the transistorized first end of this receiving terminal and this Anneta module couple to receive this digital radio communication system signal, and its second end and this low noise amplification unit couple to return this digital radio communication system signal, transistorized the second end of the transistorized first end of this earth terminal and this receiving terminal couples, to receive this digital radio communication system signal, and its second end is connected after an electric capacity, to receive an earthed voltage.
It is a kind of according to the bypass control method of above-mentioned wireless telecommunications front-end module circuit that the present invention also provides, and this wireless telecommunications front-end module circuit includes plural control signal, comprises the following step:
A) this plural number control signal is the transistor in this switch element of the corresponding activation of difference, and this low noise amplification unit action of activation;
B), when this switch element is during in bypass mode, in this plural number control signal, at least one control signal is this low noise amplification unit action of activation; And
C) this Anneta module, via the transistor in this switch element, receives this digital radio communication system signal to this fundamental module in the mode of shunting.
Further, in this switch element, there is a transmission end transistor, a receiving terminal transistor, and an earth terminal transistor.
Further, also comprise one between this step b) and this step c) between steps d), the control signal in this plural number control signal is this transmission end transistor of activation.
Further, also comprise one between this step b) and this step c) between step e), the control signal in this plural number control signal is this receiving terminal transistor of activation.
Further, also comprise one between this step b) and this step c) between step f), the control signal in this plural number control signal is this earth terminal transistor of activation.
Further, also comprise one between this step b) and this step c) between step g), the control signal in this plural number control signal is this receiving terminal transistor of activation and this earth terminal transistor.
Further, also comprise one between this step b) and this step c) between step h), the control signal in this plural number control signal is this earth terminal transistor of this transmission end transistor AND gate of activation.
Further, also comprise one between this step b) and this step c) between step I), the control signal in this plural number control signal is this receiving terminal transistor of this transmission end transistor AND gate of activation.
Beneficial functional of the present invention is, when this switch element switches to this mode standard, can be received from the digital radio communication system signal that this power amplification unit exports and be sent to this Anneta module, and when this switch element switches to this bypass mode, this digital radio communication system signal receives and is back to this fundamental module through this plural number Transistor Shunt from this Anneta module.Therefore, can save the hardware designs of known bypass circuit, save chip area and the complexity of simplifying chip design, and avoid signal transmission excessively to be amplified and supersaturation, have and improve the accuracy of transmission of wireless signals and guarantee this fundamental module circuit can not be subject to too high amplifying power and damage, there is the effect further reducing costs with consumed power.
Accompanying drawing explanation
Fig. 1 is a block diagram, and the disclosed a kind of front-end circuit module of known technology is described;
Fig. 2 is a block diagram, and the preferred embodiment of wireless telecommunications front-end module circuit of the present invention is described;
Fig. 3 is a circuit diagram, illustrates that the circuit in this preferred embodiment is a mode standard;
Fig. 4 is a truth table, the input logic of circuit in key diagram 3;
Fig. 5 is a flow chart of steps, and the bypass control method of wireless telecommunications front-end module circuit of the present invention is described; And
Fig. 6 is a circuit diagram, illustrates that the circuit in this preferred embodiment is a bypass mode.
Symbol description:
2 wireless telecommunications front-end module circuit 21 power amplification units
22 low noise amplification unit 23 switch elements
231 transmission end transistor 2311 first ends
2312 second end 2313 control ends
232 receiving terminal transistor 2321 first ends
2322 second end 2323 control ends
233 earth terminal transistor 2331 first ends
2332 second end 2333 control ends
24 detecting unit BT bluetooth passages
3 fundamental module 31 conveying elements
32 receiving element 4 Anneta modules
CTX control signal CRX control signal
CB control signal CVB_L control signal
91 ~ 93 steps.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described, can be implemented, but illustrated embodiment is not as a limitation of the invention so that those skilled in the art can better understand the present invention also.
Consult Fig. 2,3 and 4, preferred embodiment for wireless telecommunications front-end module circuit 2 of the present invention, this wireless telecommunications front-end module circuit 2 is applicable to couple with a fundamental module 3 and an Anneta module 4 respectively, this fundamental module 3 can transmit and receives a digital radio communication system signal and have a conveying element 31 and a receiving element 32, this wireless telecommunications front-end module circuit 2 comprises a power amplification unit 21, a low noise amplification unit 22, a switch element 23, a detecting unit 24, and a bluetooth channel B T.
This power amplification unit 21 is electrically connected with the conveying element 31 of this fundamental module 3, and this low noise amplification unit 22 is electrically connected with the receiving element 32 of this fundamental module 3.
This switch element 23 respectively with this power amplification unit 21, this low noise amplification unit 22, and this Anneta module 4 couples, and includes a plurality of transistors that can switch between a mode standard and a bypass mode.
In this preferred embodiment, this switch element 23 is a single-pole three throw switch, but can be also multipole switches of throwing of other form during actual enforcement more, should be as limit.This switch element 23 has a transmission end transistor 231, a receiving terminal transistor 232, and an earth terminal transistor 233.This transmission end transistor 231 has a first end 2311, one second end 2312, and one in order to control the whether control end 2313 of conducting of this first end 2311 and this second end 2312, first end 2311 and this power amplification unit 21 of this transmission end transistor 231 couple, to receive this digital radio communication system signal, and its second end 2312 couples to export this digital radio communication system signal with this Anneta module 4, this control end 2313 is in order to control whether conducting of this first end 2311 and this second end 2312.
This receiving terminal transistor 232 has a first end 2321, one second end 2322, and one in order to control the whether control end 2323 of conducting of this first end 2321 and this second end 2322.First end 2321 and this Anneta module 4 of this receiving terminal transistor 232 couple, and to receive this digital radio communication system signal, and its second end 2322 couples to return this digital radio communication system signal with this low noise amplification unit 22.
This earth terminal transistor 233 has a first end 2331, one second end 2332, and one in order to control the whether control end 2333 of conducting of this first end 2331 and this second end 2332.The first end 2331 of this earth terminal transistor 233 couples with the second end 2322 of this receiving terminal transistor 232, to receive this digital radio communication system signal, and after its second end 2332 series connection one electric capacity, to receive an earthed voltage.
In this preferred embodiment, this bluetooth channel B T couples with this earth terminal transistor 233 and is connected conducting with this receiving element 32, can be for the communication conduit institute of bluetooth or other application.This detecting unit 24 is electrically connected to these power amplification units 21, the digital radio communication system signal power size of mainly exporting in order to detect this conveying element 31, but with this bluetooth channel B T and this detecting unit 24, do not exist and be limited during actual enforcement.
This wireless telecommunications front-end module circuit 2 includes plural control signal CTX, CRX, CB, CVB_L.When this switch element 23 switches to this mode standard, this switch element 23 can receive the digital radio communication system signal of exporting from this power amplification unit 21 and be sent to this Anneta module 4 (as the TX in Fig. 4 (transmission) pattern, CTX control signal is HIGH, and CRX, CB, CVB_L control signal are LOW).
Coordinate and to consult Fig. 5,6, be the preferred embodiment of the bypass control method of wireless telecommunications front-end module circuit 2 of the present invention, and include the following step.First, in step 91, this plural number control signal is the transistor in this switch element 23 of the corresponding activation of difference, and these low noise amplification unit 22 actions of activation.In this preferred embodiment, this plural number control signal CTX, CRX, CB are that correspondence is controlled the control end 2313 of this transmission end transistor 231, the control end 2323 of this receiving terminal transistor 232 respectively, and the control signal of control end 2333 conductings of this earth terminal transistor 233, and CVB_L is the bias circuit signal of these low noise amplification unit 22 actions of activation.
Then, in step 92, when this switch element 23 is during in bypass mode, in this plural number control signal, at least one control signal is these low noise amplification unit 22 actions of activation, in this preferred embodiment so long as CVB_L control signal is HIGH, no matter being HIGH or LOW, other control signal CTX, CRX, CB all belong to a kind of of bypass mode, because the variation of each control signal HIGH or LOW in its bypass mode can be understood by the truth table in Fig. 4, therefore draw no longer one by one the flow chart of steps of various control signal HIGH or LOW.
At this, it should be noted, this plural number control signal CTX, CRX, CB are the corresponding transistorized control ends of activation, (although this control signal is LOW, only represent that in the present invention LOW is less while allowing amount that signal passes through pass through pattern than HIGH) so that its institute corresponding transistorized first end and second end conducting.Wherein, RX pattern can be considered a kind of of bypass in the present invention (Bypass) pattern, and the digital radio communication system signal that it has receives being characterized as in bypass mode from this Anneta module 4 to this low noise amplifier 22 is maximum.
Moreover, control signal input logic truth table shown in Fig. 4 is only a kind of illustrating, and enumerate the transistor switch conducting state of this switch element 23 under various bypass modes, input logic in this truth table can change to some extent along with the form of the number of this control signal, number of transistors, different switch element 23, when implement on historical facts or anecdotes border, should be as limit.
Finally, carry out step 93, this Anneta module 4, via the transistor 231,232,233 of these switch element 23 conductings, receives this digital radio communication system signal to this fundamental module 3 in the mode of shunting.
Under wireless telecommunications front-end module circuit 2 of the present invention and bypass control method and known art, really save the hardware designs of known technology bypass circuit, can save chip area and the complexity of simplifying chip design.Although the present invention has omitted the bypass circuit of entity, but by transistorized control end in this plural number control signal CTX, this switch element 23 of the corresponding activation of CRX, CB difference, so can allow the digital radio communication system signal that this Anneta module 4 receives transfer to this fundamental module 3 with the form of shunting, avoid single signal excessively to be amplified when through this low noise amplification unit 22 and make signal transmission produce supersaturation.
Therefore, wireless telecommunications front-end module circuit 2 of the present invention and bypass control method thereof can guarantee that these fundamental module 3 circuit can not be subject to too high amplifying power and supersaturation, improve the correctness of transmission of signal and make wafer not fragile, and can save the hardware designs of known technology bypass circuit, save chip area and the complexity of simplifying chip design, there is the effect further reducing costs with consumed power.
In sum, wireless telecommunications front-end module circuit 2 of the present invention is by this power amplification unit 21, this low noise amplification unit 22, and this switch element 23 couples mutually, when this switch element 23 switches to this mode standard, can be received from the digital radio communication system signal that this power amplification unit 21 exports and be sent in this Anneta module 4, and when this switch element 23 switches to this bypass mode, by this plural number control signal CTX, CRX, transistorized control end in this switch element 23 of the corresponding activation of CB difference, so can allow the digital radio communication system signal that this Anneta module 4 receives be sent to this fundamental module 3 with the form of shunting, guarantee that these fundamental module 3 circuit can not be subject to too high amplifying power and supersaturation, improve the correctness of transmission of signal and make wafer not fragile, compare the hardware designs that known technology saves bypass circuit in known technology really, further save chip area and simplify chip design, there is the effect reducing costs, therefore really can reach object of the present invention.
The above embodiment is only the preferred embodiment for absolutely proving that the present invention lifts, and protection scope of the present invention is not limited to this.Being equal to that those skilled in the art do on basis of the present invention substitutes or conversion, all within protection scope of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (10)
1. a wireless telecommunications front-end module circuit, be applicable to couple with a fundamental module and an Anneta module respectively, this fundamental module can transmit and receives a digital radio communication system signal and have a conveying element and a receiving element, it is characterized in that, this wireless telecommunications front-end module circuit comprises:
One power amplification unit, is electrically connected with the conveying element of this fundamental module;
One low noise amplification unit, is electrically connected with the receiving element of this fundamental module; And
One switch element, respectively with this power amplification unit, this low noise amplification unit, and this Anneta module couples, and include a plurality of transistors that can switch between a mode standard and a bypass mode, when this switch element switches to this mode standard, can be received from the digital radio communication system signal that this power amplification unit exports and be sent to this Anneta module, and when this switch element switches to this bypass mode, this digital radio communication system signal receives and is back to this fundamental module through this plural number Transistor Shunt from this Anneta module.
2. wireless telecommunications front-end module circuit according to claim 1, it is characterized in that, this switch element has a transmission end transistor, one receiving terminal transistor, an and earth terminal transistor, and each transistor has respectively a first end, one second end, and one in order to control the whether control end of conducting of this first end and this second end, the transistorized first end in this transmission end and this power amplification unit couple, to receive this digital radio communication system signal, and its second end and this Anneta module couple to export this digital radio communication system signal, the transistorized first end of this receiving terminal and this Anneta module couple to receive this digital radio communication system signal, and its second end and this low noise amplification unit couple to return this digital radio communication system signal, transistorized the second end of the transistorized first end of this earth terminal and this receiving terminal couples, to receive this digital radio communication system signal, and its second end is connected after an electric capacity, to receive an earthed voltage.
3. a bypass control method for wireless telecommunications front-end module circuit according to claim 1, this wireless telecommunications front-end module circuit includes plural control signal, it is characterized in that, comprises the following step:
A) this plural number control signal is the transistor in this switch element of the corresponding activation of difference, and this low noise amplification unit action of activation;
B), when this switch element is during in bypass mode, in this plural number control signal, at least one control signal is this low noise amplification unit action of activation; And
C) this Anneta module, via the transistor in this switch element, receives this digital radio communication system signal to this fundamental module in the mode of shunting.
4. the bypass control method of wireless telecommunications front-end module circuit according to claim 3, is characterized in that, has a transmission end transistor, a receiving terminal transistor in this switch element, and an earth terminal transistor.
5. the bypass control method of wireless telecommunications front-end module circuit according to claim 4, it is characterized in that, also comprise one between this step b) and this step c) between steps d), the control signal in this plural number control signal is this transmission end transistor of activation.
6. the bypass control method of wireless telecommunications front-end module circuit according to claim 4, it is characterized in that, also comprise one between this step b) and this step c) between step e), the control signal in this plural number control signal is this receiving terminal transistor of activation.
7. the bypass control method of wireless telecommunications front-end module circuit according to claim 4, it is characterized in that, also comprise one between this step b) and this step c) between step f), the control signal in this plural number control signal is this earth terminal transistor of activation.
8. the bypass control method of wireless telecommunications front-end module circuit according to claim 4, it is characterized in that, also comprise one between this step b) and this step c) between step g), the control signal in this plural number control signal is this receiving terminal transistor of activation and this earth terminal transistor.
9. the bypass control method of wireless telecommunications front-end module circuit according to claim 4, it is characterized in that, also comprise one between this step b) and this step c) between step h), the control signal in this plural number control signal is this earth terminal transistor of this transmission end transistor AND gate of activation.
10. the bypass control method of wireless telecommunications front-end module circuit according to claim 4, it is characterized in that, also comprise one between this step b) and this step c) between step I), the control signal in this plural number control signal is this receiving terminal transistor of this transmission end transistor AND gate of activation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310058323.1A CN104009771A (en) | 2013-02-25 | 2013-02-25 | Wireless communication front-end modular circuit and bypass control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310058323.1A CN104009771A (en) | 2013-02-25 | 2013-02-25 | Wireless communication front-end modular circuit and bypass control method |
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| CN104009771A true CN104009771A (en) | 2014-08-27 |
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| CN201310058323.1A Pending CN104009771A (en) | 2013-02-25 | 2013-02-25 | Wireless communication front-end modular circuit and bypass control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108199731A (en) * | 2017-12-27 | 2018-06-22 | 北斗地网（重庆）科技集团有限公司 | A kind of WiFi power intensifier |
| CN110266330A (en) * | 2018-03-12 | 2019-09-20 | 环鸿电子（昆山）有限公司 | The radio frequency front-end device and wireless communication system of wireless communication system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200719517A (en) * | 2005-11-03 | 2007-05-16 | Shen-Whan Chen | The circuit design method of low-current front-end switch used in handset |
| JP3915617B2 (en) * | 2002-07-11 | 2007-05-16 | 株式会社デンソー | In-vehicle wireless system and power control unit for in-vehicle wireless system |
| CN101188432A (en) * | 2006-11-17 | 2008-05-28 | 华立仪表集团股份有限公司 | ZigBee wireless communication module for middle and remote distance communication |
| TW200950366A (en) * | 2008-05-21 | 2009-12-01 | Ralink Technology Corp | RF transceiver of a T/R switch circuit with high power-handling capability |
| TW201131887A (en) * | 2009-10-14 | 2011-09-16 | Microsemi Corp | RF switchable balun |
-
2013
- 2013-02-25 CN CN201310058323.1A patent/CN104009771A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3915617B2 (en) * | 2002-07-11 | 2007-05-16 | 株式会社デンソー | In-vehicle wireless system and power control unit for in-vehicle wireless system |
| TW200719517A (en) * | 2005-11-03 | 2007-05-16 | Shen-Whan Chen | The circuit design method of low-current front-end switch used in handset |
| CN101188432A (en) * | 2006-11-17 | 2008-05-28 | 华立仪表集团股份有限公司 | ZigBee wireless communication module for middle and remote distance communication |
| TW200950366A (en) * | 2008-05-21 | 2009-12-01 | Ralink Technology Corp | RF transceiver of a T/R switch circuit with high power-handling capability |
| TW201131887A (en) * | 2009-10-14 | 2011-09-16 | Microsemi Corp | RF switchable balun |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108199731A (en) * | 2017-12-27 | 2018-06-22 | 北斗地网（重庆）科技集团有限公司 | A kind of WiFi power intensifier |
| CN110266330A (en) * | 2018-03-12 | 2019-09-20 | 环鸿电子（昆山）有限公司 | The radio frequency front-end device and wireless communication system of wireless communication system |
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Application publication date: 20140827 |