CN101902243A - Configurable multimode radio-frequency front end module and mobile terminal having same - Google Patents
Configurable multimode radio-frequency front end module and mobile terminal having same Download PDFInfo
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Abstract
The invention relates to a configurable multimode radio-frequency front end module and a mobile terminal having the same. The configurable multimode radio-frequency front end module comprises a single-pole multi-throw switch, a controller, a low-frequency band radio-frequency power amplifier die, a high-frequency band radio-frequency power amplifier die, a plurality of selector switches and a plurality of output matching networks comprising a plurality of capacitors and inductors, wherein the frequency range of the low-frequency band is 824-915 MHz, and the frequency range of the high-frequency band is 1710-2025 MHz; and the controller is used for controlling the working state of the low-frequency band radio-frequency power amplifier die or the high-frequency band radio-frequency power amplifier die and controlling the single-pole multi-throw switch and the selector switches to select an output matching network corresponding to the low-frequency band radio-frequency power amplifier die or the high-frequency band radio-frequency power amplifier die and transmit low-frequency band signals or high-frequency band signals to an antenna. The invention can reduce the area of a mobile telephone terminal circuit board occupied by the radio-frequency front end module, thereby reducing the volume of the mobile telephone terminal and lowering the cost of the mobile telephone terminal.
Description
Technical field
The present invention relates to RF application, especially configurable multimode radio-frequency front end module and portable terminal with this module.
Background technology
In modern wireless communication systems, RF front-end module is a critical component of realizing the radiofrequency signal wireless transmission.Now, telecom operators have released a lot of different wireless communication systems, have adopted different wireless communication standards, and the operating frequency of communication system requires different with mode of operation under the distinct communication standards.GSM (Global System for Mobile Communication) has obtained using very widely as second generation mobile communication standard in the world; And be that the 3G (Third Generation) Moblie standard of representative is disposed by large tracts of land all over the world with WCDMA (Wideband Code Division Multiple Access) and TD-SCDMA (Time Division-Synchronous Code Division Multiple Access).For mobile terminal of mobile telephone can be used in the world, it must support various mobile communication standard simultaneously, as supporting standards such as GSM, WCDMA and TD-SCDMA simultaneously, so employed RF front-end module also must be supported these standards in the portable terminal.
Be illustrated in figure 1 as the schematic diagram of multimode radio-frequency front end module solution in the current mobile terminal, it can support three frequency ranges in GSM standard and the WCDMA standard simultaneously.This multimode radio-frequency front end module mainly comprises the radio-frequency power amplifier module 001 of supporting GSM standard; Support the radio-frequency power amplifier module 002 and the duplexer 007 of WCDMA standard bands 1; Support the radio-frequency power amplifier module 003 and the duplexer 006 of WCDMA standard bands 2; Support the radio-frequency power amplifier module 004 and the duplexer 005 of WCDMA standard bands 3; Hilted broadsword nine throw switch 008 and antennas.Comprise in the radio-frequency power amplifier module 001 of support GSM standard: be used to amplify GSM standard medium and low frequency section radiofrequency signal RF
GsMLPower amplifier tube core PA1 and output matching network " output matching network 1 " thereof, the GSML that its output signal is connected in hilted broadsword nine throw switches 008 throws; Be used to amplify GSM standard medium-high frequency section radiofrequency signal RF
GSMHPower amplifier tube core PA2 and output matching network " output matching network 2 " thereof, the GSMH that its output signal is connected in hilted broadsword nine throw switches 008 throws.Comprise its power amplifier tube core PA3 and output matching network " output matching network 3 " thereof in the radio-frequency power amplifier module 002 of support WCDMA standard bands 1, its output signal WD1T is connected to first end of duplexer 007; The WD1 that second end of duplexer 007 is connected to hilted broadsword nine throw switches 008 throws; The 3rd end of duplexer 007 is output as its received signal WD1R.Comprise its power amplifier tube core PA4 and output matching network " output matching network 4 " thereof in the radio-frequency power amplifier module 003 of support WCDMA standard bands 2, its output signal WD2T is connected to first end of duplexer 006; The WD2 that second end of duplexer 006 is connected to hilted broadsword nine throw switches 008 throws; The 3rd end of duplexer 006 is output as its received signal WD2R.Comprise its power amplifier tube core PA5 and output matching network " output matching network 5 " thereof in the radio-frequency power amplifier module 004 of support WCDMA standard bands 3, its output signal WD3T is connected to first end of duplexer 005; The WD3 that second end of duplexer 005 is connected to hilted broadsword nine throw switches 008 throws; The 3rd end of duplexer 005 is output as its received signal WD3R.Hilted broadsword nine throw switches 008 also comprise 4 simultaneously and throw RX1, RX2, RX3 and RX4, can be used for antenna and receive four tunnel radiofrequency signals.Adopt the portable terminal of this scheme, under the control of baseband chip and controller, when emission, switch corresponding power amplifier module, duplexer according to actual needs to transmission channel; When receiving, the corresponding reception of radio-frequency antenna hilted broadsword nine throw switches 008 thrown and switch to receive path; Thereby realized that portable terminal can be in multiple communication standard (multi-mode) seamless switching work down.
Can see that in this RF front-end module scheme, need 4 radio-frequency power amplifier modules in the portable terminal at least, this will take a large amount of areas of circuit board in the portable terminal.
Summary of the invention
The present invention is in order to overcome the existing big defective of RF front-end module area occupied, the portable terminal that the configurable multimode radio-frequency front end module is provided and has had this module.
According to an aspect of the present invention, a kind of configurable multimode radio-frequency front end module is provided, comprise single pole multiple throw 109, controller 104,204, also comprise low-frequency range radio-frequency power amplifier tube core 101,201, high band radio-frequency power amplifier tube core 102,202, a plurality of output matching networks that some selector switch SW1, SW2, SW3 and a plurality of capacitor C 1, C2, C3, C4, C5 and inductance L 1, L2, L3, L4, L5 form; The frequency range of low-frequency range is 824MHz → 915MHz, and the frequency range of high band is 1710MHz → 2025MHz;
Low-band signal input low-frequency range radio-frequency power amplifier tube core 101,201, high frequency band signal input high band radio-frequency power amplifier tube core 102,202;
The operating state of controller 104,204 control low-frequency range radio-frequency power amplifier tube cores 101,201 or high band radio-frequency power amplifier tube core 102,202, control single pole multiple throw 109 and selector switch SW1, SW2, SW3 are sent to antenna 009 with the output matching network of selection low-frequency range radio-frequency power amplifier tube core 101,201 or high band radio-frequency power amplifier tube core 102,202 correspondences and with low-band signal or high frequency band signal.
According to an aspect of the present invention, a plurality of output matching network comprises the first output matching network C1, L1, the second output matching network C2, L2 and the 3rd output matching network C3, L3;
The end of the first output matching network C1, L1 connects the output of low-frequency range radio-frequency power amplifier tube core 101,201, the other end of the first output matching network C1, L1 connects the GSML that throws of the end of selector switch SW1 and single pole multiple throw 109 respectively, the other end of selector switch SW1 connects the end of the 3rd output matching network C3, L3, and the other end of the 3rd output matching network C3, L3 connects the WD1 that throws of single pole multiple throw by duplexer 108,208;
The end of the second output matching network C2, L2 connects the output of high band radio-frequency power amplifier tube core 102,202, and the other end of the second output matching network C2, L2 connects the GSMH that throws of single pole multiple throw 109.
According to an aspect of the present invention, a plurality of output matching network also comprises the 4th output matching network C4, L4;
The end of the 4th output matching network C4, L4 connects the end of selector switch SW2, and the other end of selector switch SW2 connects the GSMH that throws of single pole multiple throw 109;
The other end of the 4th output matching network C4, L4 connects the WD2 that throws of single pole multiple throw 109 by duplexer 107,207.
According to an aspect of the present invention, a plurality of output matching network also comprises the 5th output matching network C5, L5;
The end of the 5th output matching network C5, L5 connects the end of selector switch SW3, and the other end of selector switch SW3 connects the GSMH that throws of single pole multiple throw 109;
The other end of the 5th output matching network C5, L5 connects the WD3 that throws of single pole multiple throw 109 by duplexer 106; Perhaps the other end of the 5th output matching network C5, L5 connects the TD that throws of single pole multiple throw 109 by isolator 206.
According to an aspect of the present invention, at synchronization, selector switch SW1, a SW2, SW3 closure are arranged at most among some selector switch SW1, SW2, the SW3.
According to an aspect of the present invention, when low-band signal meets GSM850 standard or EGSM standard, controller 104,204 control low-frequency range radio-frequency power amplifier tube cores 101,201 work and high band radio-frequency power amplifier tube core 102,202 is not worked, and control selector switch SW1, selector switch SW2 and selector switch SW3 all open; Controller 104,204 is also controlled the hilted broadsword connection of single pole multiple throw and is thrown GSML;
When high frequency band signal meets DCS standard or PCS standard, controller 104,204 control low-frequency range radio-frequency power amplifier tube cores 101,201 are not worked and 102,202 work of high band radio-frequency power amplifier tube core, and control selector switch SW1, selector switch SW2 and selector switch SW3 all open; Controller 104,204 is also controlled the hilted broadsword connection of single pole multiple throw and is thrown GSMH;
When low-band signal meets WCDMA BAND V standard, WCDMA BAND VI standard or WCDMA BAND VIII standard, controller 104,204 control low-frequency range radio-frequency power amplifier tube cores 101,201 work and high band radio-frequency power amplifier tube core 102,202 is not worked, and control selector switch SW1 closure and selector switch SW2 and selector switch SW3 open; Controller 104,204 is also controlled the hilted broadsword connection of single pole multiple throw and is thrown WD1;
When high frequency band signal meets WCDMA BAND I standard, controller 104,204 control low-frequency range radio-frequency power amplifier tube cores 101,201 are not worked and 102,202 work of high band radio-frequency power amplifier tube core, and control selector switch SW2 closure and selector switch SW1 and selector switch SW3 open; Controller 104,204 is also controlled the hilted broadsword connection of single pole multiple throw and is thrown WD2;
When high frequency band signal meets WCDMA BAND II standard, WCDMA BAND III standard or TD-SCDMA standard, controller 104,204 control low-frequency range radio-frequency power amplifier tube cores 101,201 are not worked and 102,202 work of high band radio-frequency power amplifier tube core, and control selector switch SW3 closure and selector switch SW1 and selector switch SW2 open; The hilted broadsword that controller 104,204 is also controlled single pole multiple throw connects the hilted broadsword throw WD3 or control single pole multiple throw and connects and throw TD.
According to an aspect of the present invention, the first output matching network C1, L1, the second output matching network C2, L2 and the 3rd output matching network C3, L3, the 4th output matching network C4, L4 or the 5th output matching network C5, L5 are the output matching network of L type, Pi type or T type.
According to an aspect of the present invention, the first output matching network C1, L1, the second output matching network C2, L2 and the 3rd output matching network C3, L3, the 4th output matching network C4, L4 or the 5th output matching network C5, L5 are the cascade combination of any two kinds of output matching networks in the output matching network of the cascade combination of output matching network of L type, Pi type and T type or L type, Pi type and T type.
According to an aspect of the present invention, output matching network, selector switch SW1, SW2, SW3 and single pole multiple throw 109 are integrated in first chip, low-frequency range radio-frequency power amplifier tube core 101,201 and high band radio-frequency power amplifier tube core 102,202 are integrated in second chip, and controller 104,204 is integrated in the 3rd chip.
According to an aspect of the present invention, first chip is the CMOS processing chip, and second chip is the HBT processing chip, and the 3rd chip is the SOI processing chip.
According to an aspect of the present invention, first chip, second chip and the 3rd chipset become independent module.
According to an aspect of the present invention, the first output matching network C1, L1 are made of capacitor C 1 and inductance L 1, one end of inductance L 1 is connected to the output of low-frequency range radio-frequency power amplifier 101,201, what the other end of inductance L 1 connected the end of an end, selector switch SW1 of capacitor C 1 and single pole multiple throw 109 respectively throws GSML, the other end ground connection of capacitor C 1;
The second output matching network C2, L2 are made of capacitor C 2 and inductance L 2, one end of inductance L 2 is connected to the output of high band radio-frequency power amplifier 102,202, what the other end of inductance L 2 connected end of capacitor C 2 and single pole multiple throw 109 respectively throws GSMH, the other end ground connection of capacitor C 2;
The 3rd output matching network C3, L3 are made of capacitor C 3 and inductance L 3, one end of inductance L 3 is connected to the other end of selector switch SW1, the other end of inductance L 3 connects an end of capacitor C 3 and throws WD1, the other end ground connection of capacitor C 3 by what duplexer 108,208 connected single pole multiple throws 109.
According to an aspect of the present invention, the 4th output matching network C4, L4 are made of capacitor C 4 and inductance L 4, and an end of inductance L 4 is connected to the end of selector switch SW2, and the other end of selector switch SW2 connects the GSMH that throws of single pole multiple throw 109; The other end of inductance L 4 connects an end of capacitor C 4 and throws WD2, the other end ground connection of capacitor C 4 by what duplexer 107,207 connected single pole multiple throws 109.
According to an aspect of the present invention, the 5th output matching network C5, L5 are made of capacitor C 5 and inductance L 5, and an end of inductance L 5 is connected to the end of selector switch SW3, and the other end of selector switch SW3 connects the GSMH that throws of single pole multiple throw 109; The other end of inductance L 5 connects an end of capacitor C 5 and connects throwing WD3 or throwing TD, the other end ground connection of capacitor C 5 by what isolator connected single pole multiple throw 109 of single pole multiple throws 109 by duplexer 106.
According to an aspect of the present invention, provide a kind of portable terminal, comprised base band control chip 61, front-end chip 62, RF front-end module 63 and antenna 64, RF front-end module 63 is above-mentioned configurable multimode radio-frequency front end module.
The configurable RF front-end module structure of reusable support multi-mode provided by the invention (GSM, WCDMA, TD-SCDMA etc.), reduce the area that RF front-end module takies the mobile phone terminal circuit board, thereby reduce the volume of mobile phone terminal, reduce the cost of mobile phone terminal.In the technical solution that the present invention proposes, the power amplifier of supporting GSM height frequency range, three different frequency ranges of WCDMA is realized with two power amplifiers and the configurable output matching network that has a gating switch, and be integrated in the same module with the radio-frequency antenna switch, significantly reduced the volume and the area that takies the mobile terminal circuit plate of multimode radio-frequency front end module.Simultaneously, compact structure brings higher integrated level, thereby makes the cost of portable terminal also significantly reduce.
Description of drawings
Fig. 1 is a RF front-end module structure chart in the prior art;
Fig. 2 is the RF front-end module structure chart of the embodiment of the invention one;
Fig. 3 is the RF front-end module structure chart of the embodiment of the invention two;
Fig. 4 is the mobile terminal structure figure of the embodiment of the invention three;
Fig. 5 and Fig. 6 are the output matching network structure charts of cascade.
Embodiment
In the prior art, employed communication standard mainly contains GSM, WCDMA and TD-SCDMA etc.The employed transmit frequency band of each standard is as follows:
GSM standard
GSM850：824MHz→849MHz；
EGSM：880MHz→915MHz；
DCS：1710MHz→1785MHz；
PCS：1850MHz→1910MHz。
The WCDMA standard
Band?I：1920MHz→1980MHz；
Band?II：1850MHz→1910MHz；
Band?III：1710MHz→1785MHz；
Band?V：824MHz→849MHz；
Band?VI：830MHz→840MHz；
Band?VIII：880MHz→915MHz。
The TD-SCDMA standard
TD1900：1880MHz→1900MHz；
TD2000：2010MHz→2025MHz。
In fact the employed frequency range of above-mentioned each communication standard can be divided into two broad frequency ranges and contain all standards, i.e. these two frequency ranges of low-frequency range 824MHz → 915MHz and high band 1710MHz → 2025MHz.
In order to reduce the area of RF front-end module, the present invention uses two radio-frequency powers to amplify tube core (being that the low-frequency range radio-frequency power amplifies tube core and the high band radio-frequency power amplifies tube core) and realizes the configurable multimode radio-frequency front end module.The low-frequency range radio-frequency power amplifies the radiofrequency signal that tube core is used to amplify low-frequency range 824MHz → 915MHz; The radiofrequency signal that high band radio-frequency power amplifier tube core is used to amplify high band 1710MHz → 2025MHz.
Embodiment one
Technical scheme proposed by the invention as shown in Figure 2.Low-frequency range radio-frequency power amplifier tube core 101, its input signal RF
IN1Can be GSM low-band signal (GSM850, EGSM), also can be the low-band signal (Band V, Band VI, Band VIII) of WCDMA; High band radio-frequency power amplifier tube core 102, its input signal RF
IN2Can be GSM high frequency band signal (DCS, PCS), also can be the high frequency band signal (Band I, Band II, Band III) of WCDMA.
The output of low-frequency range radio-frequency power amplifier tube core 101 is connected to inductance L
1An end; Inductance L
1The other end be connected respectively to capacitor C
1An end, the GSML that hilted broadsword nine is thrown radio-frequency antenna switch 109 throw and gating switch SW
1An end; Capacitor C
1The other end be connected to ground.Gating switch SW
1The other end be connected to inductance L
3An end; Inductance L
3The other end be connected respectively to capacitor C
3An end and first end of duplexer 108; Capacitor C
3The other end be connected to ground.Second end of duplexer 108 is connected to hilted broadsword nine and throws the WD1 of radio-frequency antenna switch 109 and throw; The 3rd end of duplexer 108 is output as its received signal WD1R.
The output of high band radio-frequency power amplifier tube core 102 is connected to inductance L
2An end; Inductance L
2The other end be connected respectively to capacitor C
2An end, GSMH that hilted broadsword nine is thrown radio-frequency antenna switch 109 throw, gating switch SW
2An end and gating switch SW
3An end; Capacitor C
2The other end be connected to ground.Gating switch SW
2The other end be connected to inductance L
4An end; Inductance L
4The other end be connected respectively to capacitor C
4An end and first end of duplexer 107; Capacitor C
4The other end be connected to ground.Second end of duplexer 107 is connected to hilted broadsword nine and throws the WD2 of radio-frequency antenna switch 109 and throw; The 3rd end of duplexer 107 is output as its received signal WD2R.Gating switch SW
3The other end be connected to inductance L
5An end; Inductance L
5The other end be connected respectively to capacitor C
5An end and first end of duplexer 106; Capacitor C
5The other end be connected to ground.Second end of duplexer 106 is connected to hilted broadsword nine and throws the WD3 of radio-frequency antenna switch 109 and throw; The 3rd end of duplexer 106 is output as its received signal WD3R.The hilted broadsword that hilted broadsword nine is thrown radio-frequency antenna switch 109 is connected to antenna 009, and also comprises 4 simultaneously and throw RX1, RX2, RX3 and RX4, can be used for antenna 009 and receive four tunnel radiofrequency signals.Aforesaid hilted broadsword nine is thrown radio-frequency antenna switch 109, inductance L
1, L
2, L
3, L
4, L
5, capacitor C
1, C
2, C
3, C
4, C
5, and gating switch SW
1, SW
2, SW
3Formed configurable multimode radio-frequency front end network 103, wherein the state of the state of radio-frequency (RF) switch and gating switch has been subjected to the control of controller 104; Simultaneously, the operating state of low-frequency range radio-frequency power amplifier tube core 101 and high band radio-frequency power amplifier tube core 102 (work or close) also is subjected to the control of controller 104.Controller 104, configurable multimode radio-frequency front end network 103 and low-frequency range radio-frequency power amplifier tube core 101, high band radio-frequency power amplifier tube core 102 are integrated into a single module 105, can be called " configurable multimode radio-frequency front end module "; This module and three support duplexer 106, duplexer 107, duplexer 108 and the antennas 009 of three different frequency ranges of WCDMA, have formed the whole solution of multimode radio-frequency front end module.
This multimode radio-frequency front end module scheme can support the power amplification of GSM standard (GSM850, EGSM, DCS and PCS) frequency range, WCDMA standard (Band V, Band VI, Band VIII, Band I, BandII, Band III etc.) frequency band signals to transmit and receive.
When this scheme is used for amplifying emission GSM low-band signal (GSM850, EGSM), input signal RF
IN1Be GSM850 or EGSM radiofrequency signal, carry out power amplification, be input to by inductance L through low-frequency range radio-frequency power amplifier tube core 101
1And capacitor C
1The output matching network of forming; Radiofrequency signal after the power amplification is connected to hilted broadsword nine and throws the GSML of radio-frequency antenna switch 109 and throw.At this moment, controller 104 control low-frequency range radio-frequency power amplifier tube cores 101 work and high band radio-frequency power amplifier tube core 102 is closed, and control gating switch SW
1, SW
2And SW
3All open, hilted broadsword nine throws radio-frequency antenna switch 109 and antenna 009 is connected to GSML throws.Because gating switch SW
1, SW
2And SW
3All open, make by inductance L
3, capacitor C
3The matching network of forming is by inductance L
4, capacitor C
4The matching network of forming is by inductance L
5, capacitor C
5The matching network of forming, and three duplexers 106,107,108 are all by bypass.
Need to prove, be used for the L type matching network that output matching network that the GSM low-band signal amplifies is made up of inductance L 1 and capacitor C 1 here; In fact, output matching network can be Pi type or T type matching network according to actual needs, or the cascade of several matching network (L type, Pi type, T type) combination, as Fig. 5 or shown in Figure 6.
Output matching network shown in Figure 5 is by a T type matching network 501 and the two-stage broadband matching network that 502 cascades of Pi type matching network realize.T type matching network 501 comprises capacitor C
6, C
7And inductance L
6, Pi type matching network 502 comprises capacitor C
8, C
9And inductance L
7
Output matching network shown in Figure 6 is by a L type matching network 503 and the two-stage broadband matching network that 504 cascades of L type matching network realize.L type matching network 503 comprises capacitor C 6 and inductance L 6, and L type matching network 504 comprises capacitor C 7 and inductance L 7.
Alternatively, the way of realization of output matching network is not limited to above-mentioned form, and it can be the combination in any of L type, T type, three kinds of basic networks of Pi type, comprises mutual combination and the combination of self (such as the cascade of two T types); And the progression of cascade also is not limited to two-stage, can be three grades or more multistage.The component value of the required element of output matching network need be determined according to the concrete condition of side circuit.This is understandable for the professional and technical personnel of this area.
When this scheme is used for amplifying emission GSM high frequency band signal (DCS, PCS), input signal RF
IN2Be DCS or PCS radiofrequency signal, carry out power amplification, be input to by inductance L through high band radio-frequency power amplifier tube core 102
2And capacitor C
2The output matching network of forming; Radiofrequency signal after the power amplification is connected to hilted broadsword nine and throws the GSMH of radio-frequency antenna switch 109 and throw.At this moment, controller 104 control high band radio-frequency power amplifier tube cores 102 work and low-frequency range radio-frequency power amplifier tube core 101 is closed, and control gating switch SW
1, SW
2And SW
3All open, hilted broadsword nine throws radio-frequency antenna switch 109 and antenna 009 is connected to GSMH throws.Because gating switch SW
1, SW
2And SW
3All open, make by inductance L
3, capacitor C
3The matching network of forming is by inductance L
4, capacitor C
4The matching network of forming is by inductance L
5, capacitor C
5The matching network of forming, and three duplexers 106,107,108 are all by bypass.
Need to prove that the output matching network that is used for the amplification of GSM high frequency band signal here is by inductance L
2And capacitor C
2The L type matching network of forming; In fact, output matching network can be Pi type or T type matching network according to actual needs, or the cascade of several matching network (L type, Pi type, T type) combination, as Fig. 5 or shown in Figure 6.
Output matching network shown in Figure 5 is by a T type matching network 501 and the two-stage broadband matching network that 502 cascades of Pi type matching network realize.T type matching network 501 comprises capacitor C
6, C
7And inductance L
6, Pi type matching network 502 comprises capacitor C
8, C
9And inductance L
7
Output matching network shown in Figure 6 is by a L type matching network 503 and the two-stage broadband matching network that 504 cascades of L type matching network realize.L type matching network 503 comprises capacitor C 6 and inductance L 6, and L type matching network 504 comprises capacitor C 7 and inductance L 7.
Alternatively, the way of realization of output matching network is not limited to above-mentioned form, and it can be the combination in any of L type, T type, three kinds of basic networks of Pi type, comprises mutual combination and the combination of self (such as the cascade of two T types); And the progression of cascade also is not limited to two-stage, can be three grades or more multistage.The component value of the required element of output matching network need be determined according to the concrete condition of side circuit.This is understandable for the professional and technical personnel of this area.
When this scheme is used for amplifying emission WCDMA low-band signal (Band V, Band VI, BandVIII), input signal RF
IN1Be WCDMA Band V or Band VI or Band VIII radiofrequency signal, carry out power amplification through low-frequency range radio-frequency power amplifier tube core 101.At this moment, controller 104 control low-frequency range radio-frequency power amplifier tube cores 101 work and high band radio-frequency power amplifier tube core 102 is closed, and control gating switch SW
1Closed, SW
2Open, SW
3Open, hilted broadsword nine throws radio-frequency antenna switch 109 and antenna 009 is connected to WD1 throws.Because this moment gating switch SW
1Closure, the output matching network of WCDMA low-band signal amplifier is by inductance L
1, capacitor C
1, inductance L
3, capacitor C
3Form, be connected to first end of duplexer 108 through the signal WD1T after the matching network; Second end of duplexer 108 is connected to hilted broadsword nine and throws the WD1 of radio-frequency antenna switch 109 and throw; The 3rd end of duplexer 108 is output as its received signal WD1R.Because this moment gating switch SW
2And SW
3Open, by inductance L
4, capacitor C
4The matching network of forming is by inductance L
5, capacitor C
5The matching network of forming, and duplexer 106,107 is all by bypass.
Need to prove that the output matching network that is used for WCDMA low-band signal (Band V, Band VI, BandVIII) amplification here is by inductance L
1And capacitor C
1The L type matching network of forming and by inductance L
3, capacitor C
3The L type matching network cascade of forming is formed; In fact, according to actual needs, above-mentioned second level matching network can be Pi type or T type matching network, or the cascade of several matching network (L type, Pi type, T type) combination, as Fig. 5 or shown in Figure 6.
Output matching network shown in Figure 5 is by a T type matching network 501 and the two-stage broadband matching network that 502 cascades of Pi type matching network realize.T type matching network 501 comprises capacitor C
6, C
7And inductance L
6, Pi type matching network 502 comprises capacitor C
8, C
9And inductance L
7
Output matching network shown in Figure 6 is by a L type matching network 503 and the two-stage broadband matching network that 504 cascades of L type matching network realize.L type matching network 503 comprises capacitor C 6 and inductance L 6, and L type matching network 504 comprises capacitor C 7 and inductance L 7.
Alternatively, the way of realization of output matching network is not limited to above-mentioned form, and it can be the combination in any of L type, T type, three kinds of basic networks of Pi type, comprises mutual combination and the combination of self (such as the cascade of two T types); And the progression of cascade also is not limited to two-stage, can be three grades or more multistage.The component value of the required element of output matching network need be determined according to the concrete condition of side circuit.This is understandable for the professional and technical personnel of this area.
In addition, because the WCDMA standard is a frequency division duplex system, signal transmits and receives and can adopt identical antenna 009 to finish simultaneously, therefore the low-band signal that receives WCDMA from antenna 009 is also thrown by WD1, and, output to the radio-frequency (RF) transceiver chip (Transceiver) of portable terminal by its 3rd end WD1R by duplexer.
When this scheme is used for amplifying emission WCDMA high frequency band signal (Band I), input signal RF
IN2Be WCDMA Band I radiofrequency signal, carry out power amplification through high band radio-frequency power amplifier tube core 102.At this moment, controller 104 control high band radio-frequency power amplifier tube cores 102 work and low-frequency range radio-frequency power amplifier tube core 101 is closed, and control gating switch SW
2Closed, SW
1Open, SW
3Open, hilted broadsword nine throws radio-frequency antenna switch 109 and antenna 009 is connected to WD2 throws.Because this moment gating switch SW
2Closure, the output matching network of WCDMA high frequency band signal (Band I) amplifier is by inductance L
2, capacitor C
2, inductance L
4, capacitor C
4Form, be connected to first end of duplexer 107 through the signal WD2T after the matching network; Second end of duplexer 107 is connected to hilted broadsword nine and throws the WD2 of radio-frequency antenna switch 109 and throw; The 3rd end of duplexer 107 is output as its received signal WD2R.Because this moment gating switch SW
1And SW
3Open, by inductance L
3, capacitor C
3The matching network of forming is by inductance L
5, capacitor C
5The matching network of forming, and duplexer 106,108 is all by bypass.
Need to prove that the output matching network that is used for WCDMA high frequency band signal (Band I) amplification here is by inductance L
2And capacitor C
2The L type matching network of forming and by inductance L
4, capacitor C
4The L type matching network cascade of forming is formed; In fact, according to actual needs, above-mentioned second level matching network can be Pi type or T type matching network, or the cascade of several matching network (L type, Pi type, T type) combination, as Fig. 5 or shown in Figure 6.
Output matching network shown in Figure 5 is by a T type matching network 501 and the two-stage broadband matching network that 502 cascades of Pi type matching network realize.T type matching network 501 comprises capacitor C
6, C
7And inductance L
6, Pi type matching network 502 comprises capacitor C
8, C
9And inductance L
7
Output matching network shown in Figure 6 is by a L type matching network 503 and the two-stage broadband matching network that 504 cascades of L type matching network realize.L type matching network 503 comprises capacitor C 6 and inductance L 6, and L type matching network 504 comprises capacitor C 7 and inductance L 7.
Alternatively, the way of realization of output matching network is not limited to above-mentioned form, and it can be the combination in any of L type, T type, three kinds of basic networks of Pi type, comprises mutual combination and the combination of self (such as the cascade of two T types); And the progression of cascade also is not limited to two-stage, can be three grades or more multistage.The component value of the required element of output matching network need be determined according to the concrete condition of side circuit.This is understandable for the professional and technical personnel of this area.
In addition, because the WCDMA standard is a frequency division duplex system, signal transmits and receives and can adopt identical antenna 009 to finish simultaneously, therefore the high frequency band signal that receives WCDMA from antenna 009 is also thrown by WD2, and, output to the radio-frequency (RF) transceiver chip (Transceiver) of portable terminal by its 3rd end WD2R by duplexer.
When this scheme is used for amplifying emission WCDMA high frequency band signal (Band II, Band III), input signal RF
IN2Be WCDMA Band II or Band III radiofrequency signal, carry out power amplification through high band radio-frequency power amplifier tube core 102.At this moment, controller 104 control high band radio-frequency power amplifier tube cores 102 work and low-frequency range radio-frequency power amplifier tube core 101 is closed, and control gating switch SW
3Closed, SW
1Open, SW
2Open, hilted broadsword nine throws radio-frequency antenna switch 109 and antenna 009 is connected to WD3 throws.Because this moment gating switch SW
3Closure, the output matching network of WCDMA high frequency band signal (BandII, BandIII) amplifier is by inductance L
2, capacitor C
2, inductance L
5And capacitor C
5Form, be connected to first end of duplexer 106 through the signal WD3T after the matching network; Second end of duplexer 106 is connected to hilted broadsword nine and throws the WD3 of radio-frequency antenna switch 109 and throw; The 3rd end of duplexer 106 is output as its received signal WD3R.Because this moment gating switch SW
1And SW
2Open, by inductance L
3, capacitor C
3The matching network of forming is by inductance L
4, capacitor C
4The matching network of forming, and duplexer 107,108 is all by bypass.
Need to prove that the output matching network that is used for WCDMA high frequency band signal (Band II, BandIII) amplification here is by inductance L
2And capacitor C
2The L type matching network of forming and by inductance L
5, capacitor C
5The L type matching network cascade of forming is formed; In fact, according to actual needs, above-mentioned second level matching network can be Pi type or T type matching network, or the cascade of several matching network (L type, Pi type, T type) combination, as Fig. 5 or shown in Figure 6.
Output matching network shown in Figure 5 is by a T type matching network 501 and the two-stage broadband matching network that 502 cascades of Pi type matching network realize.T type matching network 501 comprises capacitor C
6, C
7And inductance L
6, Pi type matching network 502 comprises capacitor C
8, C
9And inductance L
7
Output matching network shown in Figure 6 is by a L type matching network 503 and the two-stage broadband matching network that 504 cascades of L type matching network realize.L type matching network 503 comprises capacitor C 6 and inductance L 6, and L type matching network 504 comprises capacitor C 7 and inductance L 7.
Alternatively, the way of realization of output matching network is not limited to above-mentioned form, and it can be the combination in any of L type, T type, three kinds of basic networks of Pi type, comprises mutual combination and the combination of self (such as the cascade of two T types); And the progression of cascade also is not limited to two-stage, can be three grades or more multistage.The component value of the required element of output matching network need be determined according to the concrete condition of side circuit.This is understandable for the professional and technical personnel of this area.
In addition, because the WCDMA standard is a frequency division duplex system, signal transmits and receives and can adopt identical antenna 009 to finish simultaneously, therefore the high frequency band signal (Band II, Band III) that receives WCDMA from antenna 009 is also thrown by WD3, and, output to the radio-frequency (RF) transceiver chip (Transceiver) of portable terminal by its 3rd end WD3R by duplexer.
Hilted broadsword nine is thrown and has been comprised also in the radio-frequency antenna switch 109 that four of being used for receive path throw RX1, RX2, RX3 and RX4, under controller control, hilted broadsword nine is thrown radio-frequency antenna switch 109 can be connected to antenna 009 signal that these four one of them of throwing receive corresponding receive path.As required, this four tunnel receptions signal that path received can be the radiofrequency signal of each frequency range in GSM, WCDMA, the various standards of TD-SCDMA.Need to prove that the radio-frequency antenna switch is that hilted broadsword nine is thrown form in the present embodiment, wherein have four to throw and be used for receive path; In fact, in concrete enforcement, can increase and decrease the number of throwing that is used for receive path according to actual needs flexibly, present embodiment is lifted four and is only thrown explanation as an example, rather than limitation of the present invention.
Following table has shown under the distinct communication standards state of each element in the multimode radio-frequency front end module:
In addition, according to the present invention, controller adopts the CMOS processing chip, low-frequency range radio-frequency power amplifier tube core 101 and high band radio-frequency power amplifier tube core 102 adopt same GaAs HBT processing chip, whole configurable multimode radio-frequency front end network 103 adopts CMOS SOI processing chip, these three chips are integrated in the RF front-end module 105, whole module is of a size of 6 * 6mm, be far smaller than the size of the product that adopts the prior art scheme, significantly cut down the volume and the cost of portable terminal.
Embodiment two
Second embodiment of technical scheme proposed by the invention as shown in Figure 3, this scheme can be supported GSM, WCDMA and three kinds of mobile communication standards of TD-SCDMA simultaneously.Low-frequency range radio-frequency power amplifier tube core 201, its input signal RF
IN1Can be GSM low-band signal (GSM850, EGSM), also can be the low-band signal (Band V, Band VI, Band VIII) of WCDMA; High band radio-frequency power amplifier tube core 202, its input signal RF
IN2Can be GSM high frequency band signal (DCS, PCS), also can be the high frequency band signal (Band I, Band II, Band III) of WCDMA or the signal of TD-SCDMA.
The output of low-frequency range radio-frequency power amplifier tube core 201 is connected to inductance L
1An end; Inductance L
1The other end be connected respectively to capacitor C
1An end, the GSML that hilted broadsword nine is thrown radio-frequency antenna switch 209 throw and gating switch SW
1An end; Capacitor C
1The other end be connected to ground.Gating switch SW
1The other end be connected to inductance L
3An end; Inductance L
3The other end be connected respectively to capacitor C
3An end and first end of duplexer 208; Capacitor C
3The other end be connected to ground.Second end of duplexer 208 is connected to hilted broadsword nine and throws the WD1 of radio-frequency antenna switch 209 and throw; The 3rd end of duplexer 208 is output as its received signal WD1R.
The output of high band radio-frequency power amplifier tube core 202 is connected to inductance L
2An end; Inductance L
2The other end be connected respectively to capacitor C
2An end, GSMH that hilted broadsword nine is thrown radio-frequency antenna switch 209 throw, gating switch SW
2An end and gating switch SW
3An end; Capacitor C
2The other end be connected to ground.Gating switch SW
2The other end be connected to inductance L
4An end; Inductance L
4The other end be connected respectively to capacitor C
4An end and first end of duplexer 207; Capacitor C
4The other end be connected to ground.Second end of duplexer 207 is connected to hilted broadsword nine and throws the WD2 of radio-frequency antenna switch 209 and throw; The 3rd end of duplexer 207 is output as its received signal WD2R.Gating switch SW
3The other end be connected to inductance L
5An end; Inductance L
5The other end be connected respectively to capacitor C
5An end and first end of isolator 206; Capacitor C
5The other end be connected to ground.Second end of isolator 206 is connected to hilted broadsword nine and throws the TD of radio-frequency antenna switch 209 and throw.The hilted broadsword that hilted broadsword nine is thrown radio-frequency antenna switch 209 is connected to antenna 009, and also comprises 4 simultaneously and throw RX1, RX2, RX3 and RX4, can be used for antenna 009 and receive four tunnel radiofrequency signals.Aforesaid hilted broadsword nine is thrown radio-frequency antenna switch 209, inductance L
1, L
2, L
3, L
4, L
5, capacitor C
1, C
2, C
3, C
4, C
5, and gating switch SW
1, SW
2, SW
3Formed configurable multimode radio-frequency front end network 203, wherein the state of the state of radio-frequency (RF) switch and gating switch has been subjected to the control of controller 204; Simultaneously, the operating state of low-frequency range radio-frequency power amplifier tube core 201 and high band radio-frequency power amplifier tube core 202 (work or close) also is subjected to the control of controller 204.Controller 204, configurable multimode radio-frequency front end network 203 and low-frequency range radio-frequency power amplifier tube core 201, high band radio-frequency power amplifier tube core 202 are integrated into a single module 205, can be called " configurable multimode radio-frequency front end module "; This module and two support the duplexers 207,208 of WCDMA different frequency ranges, are used for the isolator 206 of TD-SCDMA, and antenna 009, have formed the whole solution of multimode radio-frequency front end module.
This multimode radio-frequency front end module scheme can support GSM standard (GSM850, EGSM, DCS and PCS) frequency range, WCDMA standard (Band V, Band VI, Band VIII, Band I, BandII, Band III etc.) and the power amplification of TD-SCDMA standard bands signal to transmit and receive.
When this scheme is used for amplifying emission GSM low-band signal (GSM850, EGSM), input signal RF
IN1Be GSM850 or EGSM radiofrequency signal, carry out power amplification, be input to by inductance L through low-frequency range radio-frequency power amplifier tube core 201
1And capacitor C
1The output matching network of forming; Radiofrequency signal after the power amplification is connected to hilted broadsword nine and throws the GSML of radio-frequency antenna switch 209 and throw.At this moment, controller 204 control low-frequency range radio-frequency power amplifier tube cores 201 work and high band radio-frequency power amplifier tube core 202 is closed, and control gating switch SW
1, SW
2And SW
3All open, hilted broadsword nine throws radio-frequency antenna switch 209 and antenna 009 is connected to GSML throws.Because gating switch SW
1, SW
2And SW
3All open, make by inductance L
3, capacitor C
3The matching network of forming is by inductance L
4, capacitor C
4The matching network of forming is by inductance L
5, capacitor C
5The matching network of forming, and duplexer 207,208 and isolator 206 are all by bypass.Need to prove that the output matching network that is used for the amplification of GSM low-band signal here is by inductance L
1And capacitor C
1The L type matching network of forming; In fact, output matching network can be Pi type or T type matching network according to actual needs, or the cascade of several matching network (L type, Pi type, T type) combination; The component value of required element need be determined according to the concrete condition of side circuit.This is understandable for the professional and technical personnel of this area.
When this scheme is used for amplifying emission GSM high frequency band signal (DCS, PCS), input signal RF
IN2Be DCS or PCS radiofrequency signal, carry out power amplification, be input to by inductance L through high band radio-frequency power amplifier tube core 202
2And capacitor C
2The output matching network of forming; Radiofrequency signal after the power amplification is connected to hilted broadsword nine and throws the GSMH of radio-frequency antenna switch 209 and throw.At this moment, controller 204 control high band radio-frequency power amplifier tube cores 202 work and low-frequency range radio-frequency power amplifier tube core 201 is closed, and control gating switch SW
1, SW
2And SW
3All open, hilted broadsword nine throws radio-frequency antenna switch 209 and antenna 009 is connected to GSMH throws.Because gating switch SW
1, SW
2And SW
3All open, make by inductance L
3, capacitor C
3The matching network of forming is by inductance L
4, capacitor C
4The matching network of forming is by inductance L
5, capacitor C
5The matching network of forming, and duplexer 207,208 and isolator 206 are all by bypass.Need to prove that the output matching network that is used for the amplification of GSM high frequency band signal here is by inductance L
2And capacitor C
2The L type matching network of forming; In fact, output matching network can be Pi type or T type matching network according to actual needs, or the cascade of several matching network (L type, Pi type, T type) combination; The component value of required element need be determined according to the concrete condition of side circuit.This is understandable for the professional and technical personnel of this area.
When this scheme is used for amplifying emission WCDMA low-band signal (Band V, Band VI, BandVIII), input signal RF
IN1Be WCDMA Band V or Band VI or Band VIII radiofrequency signal, carry out power amplification through low-frequency range radio-frequency power amplifier tube core 201.At this moment, controller 204 control low-frequency range radio-frequency power amplifier tube cores 201 work and high band radio-frequency power amplifier tube core 202 is closed, and control gating switch SW
1Closed, SW
2Open, SW
3Open, hilted broadsword nine throws radio-frequency antenna switch 209 and antenna 009 is connected to WD1 throws.Because this moment gating switch SW
1Closure, the output matching network of WCDMA low-band signal amplifier is by inductance L
1, capacitor C
1, inductance L
3, capacitor C
3Form, be connected to first end of duplexer 208 through the signal WD1T after the matching network; Second end of duplexer 208 is connected to hilted broadsword nine and throws the WD1 of radio-frequency antenna switch 209 and throw; The 3rd end of duplexer 208 is output as its received signal WD1R.Because this moment gating switch SW
2And SW
3Open, by inductance L
4, capacitor C
4The matching network of forming, by inductance L
5, capacitor C
5The matching network of forming, and duplexer 207, isolator 206 are all by bypass.Need to prove that the output matching network that is used for WCDMA low-band signal (Band V, Band VI, Band VIII) amplification here is by inductance L
1And capacitor C
1The L type matching network of forming and by inductance L
3, capacitor C
3The L type matching network cascade of forming is formed; In fact, according to actual needs, above-mentioned second level matching network can be Pi type or T type matching network, or the cascade of several matching network (L type, Pi type, T type) combination; The component value of required element need be determined according to the concrete condition of side circuit.This is understandable for the professional and technical personnel of this area.
In addition, because the WCDMA standard is a frequency division duplex system, signal transmits and receives and can adopt identical antenna 009 to finish simultaneously, therefore the low-band signal that receives WCDMA from antenna 009 is also thrown by WD1, and, output to the radio-frequency (RF) transceiver chip (Transceiver) of portable terminal by its 3rd end WD1R by duplexer 208.
When this scheme is used for amplifying emission WCDMA high frequency band signal (Band I), input signal RF
IN2Be WCDMA Band I radiofrequency signal, carry out power amplification through high band radio-frequency power amplifier tube core 202.At this moment, controller 204 control high band radio-frequency power amplifier tube cores 202 work and low-frequency range radio-frequency power amplifier tube core 201 is closed, and control gating switch SW
2Closed, SW
1Open, SW
3Open, hilted broadsword nine throws radio-frequency antenna switch 209 and antenna 009 is connected to WD2 throws.Because this moment gating switch SW
2Closure, the output matching network of WCDMA high frequency band signal (Band I) amplifier is by inductance L
2, capacitor C
2, inductance L
4, capacitor C
4Form, be connected to first end of duplexer 207 through the signal WD2T after the matching network; Second end of duplexer 207 is connected to hilted broadsword nine and throws the WD2 of radio-frequency antenna switch 209 and throw; The 3rd end of duplexer 207 is output as its received signal WD2R.Because this moment gating switch SW
1And SW
3Open, by inductance L
3, capacitor C
3The matching network of forming, by inductance L
5, capacitor C
5The matching network of forming, and isolator 206, duplexer 108 are all by bypass.Need to prove that the output matching network that is used for WCDMA high frequency band signal (Band I) amplification here is by inductance L
2And capacitor C
2The L type matching network of forming and by inductance L
4, capacitor C
4The L type matching network cascade of forming is formed; In fact, according to actual needs, above-mentioned second level matching network can be Pi type or T type matching network, or the cascade of several matching network (L type, Pi type, T type) combination; The component value of required element need be determined according to the concrete condition of side circuit.This is understandable for the professional and technical personnel of this area.In addition, because the WCDMA standard is a frequency division duplex system, signal transmits and receives and can adopt identical antenna 009 to finish simultaneously, therefore high band (Band I) signal that receives WCDMA from antenna 009 is also thrown by WD2, and, output to the radio-frequency (RF) transceiver chip (Transceiver) of portable terminal by its 3rd end WD2R by duplexer 207.
When this scheme is used for amplifying emission TD-SCDMA frequency band signals, input signal RF
IN2Be the TD-SCDMA radiofrequency signal, carry out power amplification through high band radio-frequency power amplifier tube core 202.At this moment, controller 204 control high band radio-frequency power amplifier tube cores 202 work and low-frequency range radio-frequency power amplifier tube core 201 is closed, and control gating switch SW
3Closed, SW
1Open, SW
2Open, hilted broadsword nine throws radio-frequency antenna switch 209 and antenna 009 is connected to TD throws.Because this moment gating switch SW
3Closure, the output matching network of TD-SCDMA signal amplifier is by inductance L
2, capacitor C
2, inductance L
5, capacitor C
5Form, be connected to the input of isolator 206 through the signal TDT after the matching network; The output of isolator 206 is connected to hilted broadsword nine and throws the TD of radio-frequency antenna switch 209 and throw.Because this moment gating switch SW
1And SW
2Open, by inductance L
3, capacitor C
3The matching network of forming is by inductance L
4, capacitor C
4The matching network of forming, and duplexer 207,208 is all by bypass.Need to prove that the output matching network that is used for the amplification of TD-SCDMA signal here is by inductance L
2And capacitor C
2The L type matching network of forming and by inductance L
5, capacitor C
5The L type matching network cascade of forming is formed; In fact, according to actual needs, above-mentioned second level matching network can be Pi type or T type matching network, or the cascade of several matching network (L type, Pi type, T type) combination; The component value of required element need be determined according to the concrete condition of side circuit.This is understandable for the professional and technical personnel of this area.
In addition, hilted broadsword nine is thrown and has been comprised also in the radio-frequency antenna switch 209 that four of being used for receive path throw RX1, RX2, RX3 and RX4, under controller control, hilted broadsword nine is thrown radio-frequency antenna switch 209 can be connected to antenna 009 signal that these four one of them of throwing receive corresponding receive path.As required, this four tunnel receptions signal that path received can be the radiofrequency signal of each frequency range in GSM, WCDMA, the various standards of TD-SCDMA.Need to prove that the radio-frequency antenna switch is that hilted broadsword nine is thrown form in the present embodiment, wherein have four to throw and be used for receive path; In fact, in concrete enforcement, can increase and decrease the number of throwing that is used for receive path according to actual needs flexibly, present embodiment is lifted four and is only thrown explanation as an example, rather than limitation of the present invention.
Following table has shown under the distinct communication standards state of each element in the multimode radio-frequency front end module:
By embodiment one and embodiment two more as can be seen, WCDMA Band II, Band III and the TD-SCDMA configuration of gating switch and tube core in an embodiment are identical.Support WCDMA Band II, Band III and TD-SCDMA if desired simultaneously, those skilled in the art only need increase a gating switch again and get final product with corresponding matching network according to disclosed technical scheme of the present invention.
In addition, according to the present invention, controller adopts the CMOS processing chip, low-frequency range radio-frequency power amplifier tube core 201 and high band radio-frequency power amplifier tube core 202 adopt same GaAs HBT (heterojunction bipolar transistor) processing chip, whole configurable multimode radio-frequency front end network 203 adopts CMOSSOI (insulator silicon) processing chip, these three chips are integrated in the RF front-end module 205, whole module is of a size of 6 * 6mm, be far smaller than the size of the product that adopts the prior art scheme, significantly cut down the volume and the cost of portable terminal.
Embodiment three
RF front-end module provided by the invention can be applied to support in the portable terminal of various communication standards, also can be applied in bimodulus or the multi-module mobile terminal, for example GSM/WCDMA mode mobile terminal and WCDMA/TD-SCDMA mode mobile terminal etc.
Fig. 4 has shown the structural representation of portable terminal.Portable terminal comprises base band control chip 61, front-end chip (radio-frequency (RF) transceiver) 62, RF front-end module 63 and antenna 64.Base band control chip 61 is used for the synthetic baseband signal that will launch, or the baseband signal that receives is decoded; Front-end chip 62, generate radiofrequency signal to handling from the next baseband signal of base band control chip 61 transmission, and the radiofrequency signal that is generated sent to RF front-end module 63, or the radiofrequency signal of coming from RF front-end module 63 transmission handled and generate baseband signal, and the baseband signal that is generated is sent to base band control chip 61; RF front-end module 63 is used for the radiofrequency signal of coming from front-end chip 62 transmission is carried out processing such as power amplification, or received signal and will this received signal handle after be sent to front-end chip 62; Antenna 64, it is connected with RF front-end module 63, is used for transmitting the signal of coming from extraneous received signal or emission from RF front-end module 63.
Particularly, when carrying out the signal emission, base band control chip 61 is compiled into the information that will launch base band sign indicating number (baseband signal) and it is transferred to front-end chip 62,62 pairs of these baseband signals of front-end chip are handled the generation radiofrequency signal, and with this radio signal transmission to RF front-end module 63, RF front-end module 63 will carry out power amplification and outwards launch by antenna 64 from the radiofrequency signal that front-end chip 62 transmission come; When carrying out the signal reception, RF front-end module 63 will be given front-end chip 62 by the radio signal transmission that antenna 64 receives, front-end chip 62 will be converted to baseband signal from the radiofrequency signal that RF front-end module 63 transmission come, and this baseband signal is transferred to base band control chip 61, will be interpreted as reception information from the baseband signal that front-end chip 62 transmission come by base band control chip 61 at last.
Alternatively, the described information that will launch or reception information can comprise audio-frequency information, address information (phone number, station address), Word message (short message literal, website literal), pictorial information etc.
The primary clustering of described base band control chip is processor (DSP, ARM etc.) and internal memory (as SRAM, Flash).Alternatively, this base band control chip is realized by single baseband chip.
Preferably, described front-end chip is supported two kinds of baseband signal interfaces, and base band control chip that can tenaculum Analog Baseband function also can be supported the base band control chip of pure digi-tal simultaneously.
Claims (15)
1. a configurable multimode radio-frequency front end module comprises single pole multiple throw (109), controller (104,204), it is characterized in that, also comprise low-frequency range radio-frequency power amplifier tube core (101,201), high band radio-frequency power amplifier tube core (102,202), some selector switch (SW
1, SW
2, SW
3) and a plurality of electric capacity (C
1, C
2, C
3, C
4, C
5) and inductance (L
1, L
2, L
3, L
4, L
5) a plurality of output matching networks of forming; The frequency range of low-frequency range is 824MHz → 915MHz, and the frequency range of high band is 1710MHz → 2025MHz;
Low-band signal input low-frequency range radio-frequency power amplifier tube core (101,201), high frequency band signal input high band radio-frequency power amplifier tube core (102,202);
The operating state of controller (104,204) control low-frequency range radio-frequency power amplifier tube core (101,201) or high band radio-frequency power amplifier tube core (102,202), control single pole multiple throw (109) and selector switch (SW
1, SW
2, SW
3) to select the corresponding output matching network of low-frequency range radio-frequency power amplifier tube core (101,201) or high band radio-frequency power amplifier tube core (102,202) and low-band signal or high frequency band signal be sent to antenna (009).
2. configurable multimode radio-frequency front end module as claimed in claim 1 is characterized in that, a plurality of output matching networks comprise the first output matching network (C
1, L
1), the second output matching network (C
2, L
2) and the 3rd output matching network (C
3, L
3);
First output matching network (the C
1, L
1) an end connect the output of low-frequency range radio-frequency power amplifier tube core (101,201), the first output matching network (C
1, L
1) the other end connect selector switch (SW respectively
1) an end and single pole multiple throw (109) throw (GSML), selector switch (SW
1) the other end connect the 3rd output matching network (C
3, L
3) an end, the 3rd output matching network (C
3, L
3) the other end connect throw (WD1) of single pole multiple throw by duplexer (108,208);
Second output matching network (the C
2, L
2) an end connect the output of high band radio-frequency power amplifier tube core (102,202), the second output matching network (C
2, L
2) the other end connect throw (GSMH) of single pole multiple throw (109).
3. configurable multimode radio-frequency front end module as claimed in claim 2 is characterized in that, a plurality of output matching networks also comprise the 4th output matching network (C
4, L
4);
The 4th output matching network (C
4, L
4) an end connect selector switch (SW
2) an end, selector switch (SW
2) the other end connect throw (GSMH) of single pole multiple throw (109);
The 4th output matching network (C
4, L
4) the other end connect throw (WD2) of single pole multiple throw (109) by duplexer (107,207).
4. configurable multimode radio-frequency front end module as claimed in claim 3 is characterized in that, a plurality of output matching networks also comprise the 5th output matching network (C
5, L
5);
The 5th output matching network (C
5, L
5) an end connect selector switch (SW
3) an end, selector switch (SW
3) the other end connect throw (GSMH) of single pole multiple throw (109);
The 5th output matching network (C
5, L
5) the other end connect throw (WD3) of single pole multiple throw (109) by duplexer (106); Perhaps the 5th output matching network (C
5, L
5) the other end connect throw (TD) of single pole multiple throw (109) by isolator (206).
5. configurable multimode radio-frequency front end module as claimed in claim 4 is characterized in that, at synchronization, and some selector switch (SW
1, SW
2, SW
3) in a selector switch (SW is arranged at most
1, SW
2, SW
3) closure.
6. configurable multimode radio-frequency front end module as claimed in claim 5 is characterized in that,
When low-band signal meets GSM850 standard or EGSM standard, controller (104,204) control low-frequency range radio-frequency power amplifier tube core (101,201) work and high band radio-frequency power amplifier tube core (102,202) is not worked, and control selector switch (SW
1), selector switch (SW
2) and selector switch (SW
3) all open; Controller (104,204) is also controlled the hilted broadsword connection of single pole multiple throw and is thrown (GSML);
When high frequency band signal met DCS standard or PCS standard, controller (104,204) control low-frequency range radio-frequency power amplifier tube core (101,201) was not worked and high band radio-frequency power amplifier tube core (102,202) work, and control selector switch (SW
1), selector switch (SW
2) and selector switch (SW
3) all open; Controller (104,204) is also controlled the hilted broadsword connection of single pole multiple throw and is thrown (GSMH);
When low-band signal meets WCDMA BAND V standard, WCDMA BAND VI standard or WCDMA BAND VIII standard, controller (104,204) control low-frequency range radio-frequency power amplifier tube core (101,201) work and high band radio-frequency power amplifier tube core (102,202) is not worked, and control selector switch (SW
1) closure and selector switch (SW
2) and selector switch (SW
3) open; Controller (104,204) is also controlled the hilted broadsword connection of single pole multiple throw and is thrown (WD1);
When high frequency band signal met WCDMA BAND I standard, controller (104,204) control low-frequency range radio-frequency power amplifier tube core (101,201) was not worked and high band radio-frequency power amplifier tube core (102,202) work, and control selector switch (SW
2) closure and selector switch (SW
1) and selector switch (SW
3) open; Controller (104,204) is also controlled the hilted broadsword connection of single pole multiple throw and is thrown (WD2);
When high frequency band signal meets WCDMA BAND II standard, WCDMA BAND III standard or TD-SCDMA standard, controller (104,204) control low-frequency range radio-frequency power amplifier tube core (101,201) is not worked and high band radio-frequency power amplifier tube core (102,202) work, and control selector switch (SW
3) closure and selector switch (SW
1) and selector switch (SW
2) open; The hilted broadsword that controller (104,204) is also controlled single pole multiple throw connects the hilted broadsword throw (WD3) or control single pole multiple throw and connects and throw (TD).
7. configurable multimode radio-frequency front end module as claimed in claim 4 is characterized in that, the first output matching network (C
1, L
1), the second output matching network (C
2, L
2) and the 3rd output matching network (C
3, L
3), the 4th output matching network (C
4, L
4) or the 5th output matching network (C
5, L
5) be the output matching network of L type, Pi type or T type.
8. configurable multimode radio-frequency front end module as claimed in claim 4 is characterized in that, the first output matching network (C
1, L
1), the second output matching network (C
2, L
2) and the 3rd output matching network (C
3, L
3), the 4th output matching network (C
4, L
4) or the 5th output matching network (C
5, L
5) be the cascade combination of any two kinds of output matching networks in the output matching network of the cascade combination of output matching network of L type, Pi type and T type or L type, Pi type and T type.
9. configurable multimode radio-frequency front end module as claimed in claim 1 is characterized in that, output matching network, selector switch (SW
1, SW
2, SW
3) and single pole multiple throw (109) be integrated in first chip, low-frequency range radio-frequency power amplifier tube core (101,201) and high band radio-frequency power amplifier tube core (102,202) are integrated in second chip, and controller (104,204) is integrated in the 3rd chip.
10. configurable multimode radio-frequency front end module as claimed in claim 9 is characterized in that, first chip is the CMOS processing chip, and second chip is the HBT processing chip, and the 3rd chip is the SOI processing chip.
11. configurable multimode radio-frequency front end module as claimed in claim 10 is characterized in that, first chip, second chip and the 3rd chipset become independent module.
12., it is characterized in that the first output matching network (C as any described configurable multimode radio-frequency front end module among the claim 2-4
1, L
1) by electric capacity (C
1) and inductance (L
1) constitute inductance (L
1) an end be connected to the output of low-frequency range radio-frequency power amplifier (101,201), inductance (L
1) the other end connect electric capacity (C respectively
1) an end, selector switch (SW
1) an end and single pole multiple throw (109) throw (GSML), electric capacity (C
1) other end ground connection;
Second output matching network (the C
2, L2) by electric capacity (C
2) and inductance (L2) formation, inductance (L
2) an end be connected to the output of high band radio-frequency power amplifier (102,202), inductance (L
2) the other end connect electric capacity (C respectively
2) an end and single pole multiple throw (109) throw (GSMH), electric capacity (C
2) other end ground connection;
The 3rd output matching network (C
3, L
3) by electric capacity (C
3) and inductance (L
3) constitute inductance (L
3) an end be connected to selector switch (SW
1) the other end, inductance (L
3) the other end connect electric capacity (C
3) an end and throw (WD1), electric capacity (C by duplexer (108,208) connection single pole multiple throw (109)
3) other end ground connection.
13. configurable multimode radio-frequency front end module as claimed in claim 12 is characterized in that, the 4th output matching network (C
4, L
4) by electric capacity (C
4) and inductance (L
4) constitute inductance (L
4) an end be connected to selector switch (SW
2) an end, selector switch (SW
2) the other end connect throw (GSMH) of single pole multiple throw (109); Inductance (L
4) the other end connect electric capacity (C
4) an end and throw (WD2), electric capacity (C by duplexer (107,207) connection single pole multiple throw (109)
4) other end ground connection.
14. configurable multimode radio-frequency front end module as claimed in claim 13 is characterized in that, the 5th output matching network (C
5, L
5) by electric capacity (C
5) and inductance (L
5) constitute inductance (L
5) an end be connected to selector switch (SW
3) an end, selector switch (SW
3) the other end connect throw (GSMH) of single pole multiple throw (109); Inductance (L
5) the other end connect electric capacity (C
5) an end and connect the throwing of single pole multiple throw (109) (WD3) or throw (TD), electric capacity (C by duplexer (106) by isolator connection single pole multiple throw (109)
5) other end ground connection.
15. portable terminal, comprise base band control chip (61), front-end chip (62), RF front-end module (63) and antenna (64), it is characterized in that RF front-end module (63) is as any described configurable multimode radio-frequency front end module of claim 1-14.
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|---|---|---|---|
| CN2010102399624A CN101902243B (en) | 2010-07-28 | 2010-07-28 | Configurable multimode radio-frequency front end module and mobile terminal having same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102399624A CN101902243B (en) | 2010-07-28 | 2010-07-28 | Configurable multimode radio-frequency front end module and mobile terminal having same |
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| Publication Number | Publication Date |
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| CN101902243A true CN101902243A (en) | 2010-12-01 |
| CN101902243B CN101902243B (en) | 2013-01-02 |
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ID=43227482
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|---|---|---|---|
| CN2010102399624A Active CN101902243B (en) | 2010-07-28 | 2010-07-28 | Configurable multimode radio-frequency front end module and mobile terminal having same |
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Effective date of registration: 20190326 Address after: 361006 Xiamen Free Trade Pilot Area, Xiamen, Fujian Province, Unit X, 8th Floor, Unit 05, Building D, Xiamen International Shipping Center, 97 Xiangyu Road, Xiamen Section Patentee after: Xinxin Finance Leasing (Xiamen) Co.,Ltd. Address before: 201203 Building 1, exhibition hall, 2288 lane, 2288 Chong, road, Zhangjiang hi tech park, Shanghai Patentee before: SPREADTRUM COMMUNICATIONS (SHANGHAI) Co.,Ltd. |
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Application publication date: 20101201 Assignee: SPREADTRUM COMMUNICATIONS (SHANGHAI) Co.,Ltd. Assignor: Xinxin Finance Leasing (Xiamen) Co.,Ltd. Contract record no.: X2021110000009 Denomination of invention: Configurable multi mode RF front end module and mobile terminal with the module Granted publication date: 20130102 License type: Exclusive License Record date: 20210317 |
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Effective date of registration: 20221021 Address after: 201203 Shanghai city Zuchongzhi road Pudong New Area Zhangjiang hi tech park, Spreadtrum Center Building 1, Lane 2288 Patentee after: SPREADTRUM COMMUNICATIONS (SHANGHAI) Co.,Ltd. Address before: 361006 Xiamen Free Trade Pilot Area, Xiamen, Fujian Province, Unit X, 8th Floor, Unit 05, Building D, Xiamen International Shipping Center, 97 Xiangyu Road, Xiamen Section Patentee before: Xinxin Finance Leasing (Xiamen) Co.,Ltd. |
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