CN202309698U - Filtering device, antenna switch module and dual-mode terminal - Google Patents

Filtering device, antenna switch module and dual-mode terminal Download PDF

Info

Publication number
CN202309698U
CN202309698U CN 201120434113 CN201120434113U CN202309698U CN 202309698 U CN202309698 U CN 202309698U CN 201120434113 CN201120434113 CN 201120434113 CN 201120434113 U CN201120434113 U CN 201120434113U CN 202309698 U CN202309698 U CN 202309698U
Authority
CN
China
Prior art keywords
signal
duplexer
mode
frequency range
filter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201120434113
Other languages
Chinese (zh)
Inventor
陈子轩
马凯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Priority to CN 201120434113 priority Critical patent/CN202309698U/en
Application granted granted Critical
Publication of CN202309698U publication Critical patent/CN202309698U/en
Priority to PCT/CN2012/078584 priority patent/WO2013063952A1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
    • H04B1/0057—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using diplexing or multiplexing filters for selecting the desired band

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The utility model provides a filtering device, an antenna switch module and a dual-mode terminal. The filtering device at least includes a duplexer arranged in the same frequency range of one of a first mode signal and a second mode signal. The duplexer is used for receiving the first mode signal and the second mode signal in a manner of time division multiplex, filtering the received signals and output the signals. By using the filtering device and the dual-mode terminal including the filtering device, the number of chips in use can be reduced, thereby further reducing the area consumption of PCB, improving the integrated level of a dual-mode radio frequency circuit, facilitating the miniaturization of the dual-mode terminal, and facilitating to reduce hardware cost.

Description

Filter, duplexer module and dual-mode terminal
Technical field
The utility model relates to mobile communication technology, relates in particular to a kind of filter, duplexer module and dual-mode terminal.
Background technology
Current; At WCDMA (Wideband Code Division Multiple Access; WCDMA)/global system for mobile communications (Global System for Mobile Communication; GSM) dual-mode terminal receives in the radio architectures scheme of path; Common implementation method is, and is as shown in Figure 1, adopts baseband chip 100, duplexer module 200, WCDMA/GSM RF transceiver 300, GSM power amplifier 310, WCDMA power amplifier 410, at least one GSM receiving filter (RX SAW) 320 and at least one WCDMA duplexer 420.
Above architectural schemes need be used the chip more than seven, and this makes circuit structure complicated, has taken a large amount of printed circuit board (PCB) (PCB) area, is unfavorable for improving integrated level, also is unfavorable for reducing cost and realizing the miniaturization at terminal.
The utility model content
The utility model provides a kind of filter, duplexer module and dual-mode terminal, to solve the low problem of filter integrated level.
The utility model provides a kind of filter, is applied to the receive path of multimode terminal, and said filter is included as a duplexer of a similar frequency bands setting of first mode signal and second mode signal at least;
Said duplexer is used for receiving said first mode signal and second mode signal with time-multiplexed mode, and the signal that receives is carried out exporting after the filtering.
Preferably, said first mode signal is global system for mobile communications (GSM) signal, TD SDMA (TD-SCDMA) signal or personal handhold telephone system (PHS) signal; Said second mode signal is WCDMA (WCDMA) signal or code division multiple access (CDMA) signal.
Preferably, said filter is included as the duplexer that each similar frequency bands of said first mode signal and said second mode signal only is provided with.
Preferably, said filter comprises one or more in the following duplexer:
A duplexer for WCDMA1800 frequency range and the setting of GSM1800 frequency range;
A duplexer for WCDMA1900 frequency range and the setting of GSM1900 frequency range;
A duplexer for WCDMA850 frequency range and the setting of GSM850 frequency range; And
A duplexer for WCDMA900 frequency range and the setting of GSM900 frequency range.
The utility model also provides a kind of duplexer module, is applied to the receive path of multimode terminal, and said duplexer module comprises logical circuit and duplexer, wherein:
Said logical circuit is used for the control signal according to the baseband chip transmission, sends switching signal to duplexer;
Said duplexer is used for the said switching signal according to said logical circuit transmission, is first mode signal or the second mode signal selection path that receives, and said path leads to the corresponding duplexer of signal place frequency range that receives.
Preferably, said first mode signal is global system for mobile communications (GSM) signal, TD SDMA (TD-SCDMA) signal or personal handhold telephone system (PHS) signal;
Said second mode signal is WCDMA (WCDMA) signal or code division multiple access (CDMA) signal.
The utility model also provides a kind of dual-mode terminal, comprises the duplexer module, filter and the bimodulus RF transceiver that connect successively, wherein:
What said filter adopted is above-mentioned filter;
What said duplexer module adopted is above-mentioned duplexer module.
Above-mentioned filter and comprise the dual-mode terminal of this filter can reduce the usage quantity of chip, and then reduce the area that takies PCB, improves the integrated level of dual-mode terminal radio frequency circuit, helps realizing the miniaturization at terminal, and helps reducing hardware cost.
Description of drawings
Fig. 1 is existing WCDMA/GSM dual-mode terminal configuration diagram;
Fig. 2 is the configuration diagram of the dual-mode terminal embodiment of the utility model.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer, hereinafter will combine accompanying drawing that the embodiment of the utility model is elaborated.Need to prove that under the situation of not conflicting, embodiment among the application and the characteristic among the embodiment be combination in any each other.
The utility model embodiment provides a kind of filter, is applied to the receive path of multimode terminal, and said filter is included as a duplexer of a similar frequency bands setting of first mode signal and second mode signal at least; Said duplexer is used for receiving said first mode signal and second mode signal with time-multiplexed mode, and the signal that receives is carried out exporting after the filtering.
Wherein, said first mode signal can be global system for mobile communications (GSM) signal, TD SDMA (TD-SCDMA) signal or personal handhold telephone system (PHS) signal; Said second mode signal can be WCDMA (WCDMA) signal or code division multiple access (CDMA) signal.
In order to improve the integrated level of filter, said filter can be included as the duplexer that each similar frequency bands of said first mode signal and said second mode signal only is provided with; For example, when first mode signal is the GSM signal, when second mode signal was the WCDMA signal, because GSM has four identical frequency ranges with WCDMA, therefore, above-mentioned filter can comprise four duplexers.
Particularly; Said four duplexers; Be respectively applied for the signal of reception WCDMA1900 frequency range or the signal of GSM 1900 frequency ranges; Receive the signal of WCDMA1800 frequency range or the signal of GSM 1800 frequency ranges, receive the signal of WCDMA850 frequency range or the signal of GSM 850 frequency ranges, receive the signal of WCDMA900 frequency range or the signal of GSM 900 frequency ranges; It is the shared same reception path of WCDMA1900 frequency range and GSM 1900 frequency ranges; The shared same reception path of WCDMA1800 frequency range and GSM 1800 frequency ranges; The shared same reception path of WCDMA850 frequency range and GSM850 frequency range, the shared same reception path of WCDMA900 frequency range and GSM900 frequency range.
This shows that above-mentioned duplexer can be accomplished the Signal Processing to GSM, i.e. the same reception path of GSM signal and WCDMA signal common.
In order to realize the above-mentioned functions of duplexer, the utility model also provides a kind of duplexer module, is applied to the receive path of multimode terminal, and said duplexer module comprises logical circuit and duplexer, wherein:
Said logical circuit is used for the control signal according to the baseband chip transmission, sends switching signal to duplexer;
Said duplexer is used for the said switching signal according to said logical circuit transmission, is first mode signal or the second mode signal selection path that receives, and said path leads to the corresponding duplexer of signal place frequency range that receives.
Wherein, said first mode signal is global system for mobile communications (GSM) signal, TD SDMA (TD-SCDMA) signal or personal handhold telephone system (PHS) signal; Said second mode signal is WCDMA (WCDMA) signal or code division multiple access (CDMA) signal.
This duplexer module can send to first mode signal in its corresponding duplexer, becomes possibility thereby make duplexer to send to the multi-mode radio frequency transceiving chip to first mode signal.
The utility model embodiment provides the radio architectures of the shared reception path of a kind of WCDMA/GSM dual-mode terminal, has cancelled GSM and has received path, only keeps WCDMA and receives path.As shown in Figure 2; Be the configuration diagram of the dual-mode terminal embodiment of the utility model, this dual-mode terminal comprises: baseband chip 100, bimodulus RF transceiver 300, GSM power amplifier 310, WCDMA power amplifier 410, WCDMA duplexer 420 and duplexer module 200.
Wherein, the WCDMA/GSM RF transceiver is accomplished the transmitting-receiving processing of WCDMA and two kinds of standard signals of GSM.The WCDMA power amplifier is accomplished the linear amplification of WCDMA; The WCDMA duplexer is accomplished the transmission duplex of WCDMA signal; The GSM power amplifier is accomplished the amplification of GSM signal, and the duplexer module is responsible for the switching and the transmission of GSM transmitting and receiving signal and WCDMA emission reception two-way signaling; Wherein GSM receives signal employing and the identical branch road of WCDMA reception signal.This bimodulus framework saves GSM RX SAW than the framework of present use, has reduced by a chip at least, simplifies circuit greatly and connects, and, miniaturization integrated to the WCDMA/GSM dual-mode terminal develops highly significant.
In the transmitting chain of the dual-mode terminal framework of the foregoing description; Processing such as the coding of baseband chip 100 completion primary signals, modulation; Obtain the i/q signal of GSM or WCDMA; Send in the bimodulus RF transceiver 300, the radiating portion in the bimodulus RF transceiver 300 adopts the up-conversion scheme of Direct Transform, obtains rf modulated signal after the i/q signal completion conversion process to input.The GSM rf modulated signal gets into GSM power amplifier 310; Under the control signal control of baseband chip; GSM power amplifier 310 is in saturated; Radiofrequency signal after the power amplification is admitted to duplexer module 200, and the duplexer module receives the control of baseband chip 100 to select the emission path of GSM, radiofrequency signal is sent into the main antenna of mobile phone; The WCDMA rf modulated signal gets into WCDMA power amplifier 410; Simultaneously, baseband chip is seen control signal off, makes WCDMA power amplifier 410 be in linear working state; Radiofrequency signal after the power amplification is through being admitted to duplexer module 200 after 420 in the WCDMA duplexer; The duplexer module receives the control of baseband chip 100, selects the path of WCDMA, radiofrequency signal is sent into the main antenna of mobile phone.
And in the reception link of the dual-mode terminal framework of the foregoing description, electromagnetic wave signal receives the back by antenna and gets into duplexer module 200, and under the control of baseband chip 100, duplexer selective reception path is sent radiofrequency signal into receiving loop.Bimodulus receives and only adopts the single mode RX path in this framework; The shared reception path of the reception signal of GSM and WCDMA; Be GSM PCS1900, DCS1800, GSM850, GSM900 frequency range path respectively with the shared reception path of Band2, Band3, Band5, the Band8 of WCDMA; Wherein, the operating frequency correspondence table of the Band2 of the PCS1900 of GSM, DCS1800, GSM850, GSM900 frequency range and WCDMA (being WCDMA1900), Band3 (being WCDMA1800), Band5 (being WCDMA850), Band8 (being WCDMA900) is as shown in table 1.The GSM signal is the same with the WCDMA signal, accomplishes filtering via the SAW filter in the WCDMA duplexer.Filtered radiofrequency signal gets into bimodulus RF transceiver 300.Said bimodulus RF transceiver 300 adopts the zero intermediate frequency reception programme, and the radiofrequency signal Direct Conversion that receives to baseband I/Q signal, is sent into baseband chip 100, and accomplishes processing such as demodulation, decoding by baseband chip 100, restores primary signal.
Table 1WCDMA frequency range and GSM frequency range operating frequency correspondence table
Figure BDA0000105690340000061
Above-mentioned dual-mode terminal is not limited to the WCDMA/GSM bimodulus, also can be the CDMA/GSM bimodulus.GSM partly is not limited to the GSM standard, can be the standard of TD-SCDMA, personal handhold telephone system time-division access waies such as (PHS); WCDMA partly is not limited to the WCDMA standard, can be the standard that the CDMA equifrequency is tapped into mode.
Above-mentioned dual-mode terminal through the signal of the various frequency ranges of shared reception path reception GSM, has been saved a GSM filter at least, has improved the integrated level of dual-mode terminal radio frequency circuit, has reduced the area of shared PCB, helps realizing the miniaturization at terminal; Also reduced hardware cost.
Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model, only with reference to preferred embodiment the utility model is specified.Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model, and do not break away from the spirit and the scope of the utility model technical scheme, all should be encompassed in the middle of the claim scope of the utility model.

Claims (7)

1. filter is applied to the receive path of multimode terminal, it is characterized in that, said filter is included as the duplexer that a similar frequency bands of first mode signal and second mode signal is provided with at least;
Said duplexer is used for receiving said first mode signal and second mode signal with time-multiplexed mode, and the signal that receives is carried out exporting after the filtering.
2. filter according to claim 1 is characterized in that:
Said first mode signal is global system for mobile communications (GSM) signal, TD SDMA (TD-SCDMA) signal or personal handhold telephone system (PHS) signal;
Said second mode signal is WCDMA (WCDMA) signal or code division multiple access (CDMA) signal.
3. filter according to claim 1 and 2 is characterized in that:
Said filter is included as the duplexer that each similar frequency bands of said first mode signal and said second mode signal only is provided with.
4. filter according to claim 2 is characterized in that:
Said filter comprises one or more in the following duplexer:
A duplexer for WCDMA1800 frequency range and the setting of GSM1800 frequency range;
A duplexer for WCDMA1900 frequency range and the setting of GSM1900 frequency range;
A duplexer for WCDMA850 frequency range and the setting of GSM850 frequency range; And
A duplexer for WCDMA900 frequency range and the setting of GSM900 frequency range.
5. duplexer module is applied to the receive path of multimode terminal, it is characterized in that said duplexer module comprises logical circuit and duplexer, wherein:
Said logical circuit is used for the control signal according to the baseband chip transmission, sends switching signal to duplexer;
Said duplexer is used for the said switching signal according to said logical circuit transmission, is first mode signal or the second mode signal selection path that receives, and said path leads to the corresponding duplexer of signal place frequency range that receives.
6. duplexer module according to claim 5 is characterized in that:
Said first mode signal is global system for mobile communications (GSM) signal, TD SDMA (TD-SCDMA) signal or personal handhold telephone system (PHS) signal;
Said second mode signal is WCDMA (WCDMA) signal or code division multiple access (CDMA) signal.
7. a dual-mode terminal comprises the duplexer module, filter and the bimodulus RF transceiver that connect successively, it is characterized in that:
What said filter adopted is like the described filter of the arbitrary claim of claim 1-4;
What said duplexer module adopted is like claim 5 or 6 described duplexer modules.
CN 201120434113 2011-11-04 2011-11-04 Filtering device, antenna switch module and dual-mode terminal Expired - Fee Related CN202309698U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN 201120434113 CN202309698U (en) 2011-11-04 2011-11-04 Filtering device, antenna switch module and dual-mode terminal
PCT/CN2012/078584 WO2013063952A1 (en) 2011-11-04 2012-07-13 Filtering device, antenna switch module and dual-mode terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201120434113 CN202309698U (en) 2011-11-04 2011-11-04 Filtering device, antenna switch module and dual-mode terminal

Publications (1)

Publication Number Publication Date
CN202309698U true CN202309698U (en) 2012-07-04

Family

ID=46378507

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201120434113 Expired - Fee Related CN202309698U (en) 2011-11-04 2011-11-04 Filtering device, antenna switch module and dual-mode terminal

Country Status (2)

Country Link
CN (1) CN202309698U (en)
WO (1) WO2013063952A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102904598A (en) * 2012-09-26 2013-01-30 广东步步高电子工业有限公司 Radio frequency system of mobile terminal
WO2013063952A1 (en) * 2011-11-04 2013-05-10 中兴通讯股份有限公司 Filtering device, antenna switch module and dual-mode terminal
WO2013063938A1 (en) * 2011-11-04 2013-05-10 中兴通讯股份有限公司 Power amplification module, multi-mode radio frequency transceiver, duplexer and multi-mode terminal
CN104113355A (en) * 2013-04-19 2014-10-22 联发科技（新加坡）私人有限公司 Electronic device
TWI503015B (en) * 2013-11-01 2015-10-01 Htc Corp Mobile communication devices with dual mode, dual standby and dual active function and methods for dynamically changing coupling paths of antennas
CN106603114A (en) * 2016-11-30 2017-04-26 深圳天珑无线科技有限公司 Electronic apparatus
CN107689812A (en) * 2017-08-31 2018-02-13 广东欧珀移动通信有限公司 Radio-frequency front-end module, mobile terminal and signal processing method
CN111726138A (en) * 2020-06-05 2020-09-29 维沃移动通信有限公司 Radio frequency circuit and electronic device
CN112422148A (en) * 2019-12-31 2021-02-26 Oppo广东移动通信有限公司 Radio frequency module and electronic equipment

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101827463B (en) * 2009-03-03 2013-08-21 展讯通信（上海）有限公司 Dual-mode dual-card dual-standby single-pass wireless terminal and communication method thereof
EP2426970A4 (en) * 2009-05-11 2012-08-01 Huawei Tech Co Ltd A method for sharing rf receiving unit, apparatus and system thereof
CN101826884B (en) * 2010-04-16 2013-01-30 华为终端有限公司 Multi-module terminal circuit and multi-module terminal
CN202309698U (en) * 2011-11-04 2012-07-04 中兴通讯股份有限公司 Filtering device, antenna switch module and dual-mode terminal
CN102404881A (en) * 2011-11-04 2012-04-04 中兴通讯股份有限公司 Dual-mode radio frequency transceiver, filtering device and dual-mode terminal

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013063952A1 (en) * 2011-11-04 2013-05-10 中兴通讯股份有限公司 Filtering device, antenna switch module and dual-mode terminal
WO2013063938A1 (en) * 2011-11-04 2013-05-10 中兴通讯股份有限公司 Power amplification module, multi-mode radio frequency transceiver, duplexer and multi-mode terminal
CN102904598A (en) * 2012-09-26 2013-01-30 广东步步高电子工业有限公司 Radio frequency system of mobile terminal
CN104113355A (en) * 2013-04-19 2014-10-22 联发科技（新加坡）私人有限公司 Electronic device
US9853678B2 (en) 2013-04-19 2017-12-26 Mediatek Singapore Pte. Ltd. Electronic device
TWI503015B (en) * 2013-11-01 2015-10-01 Htc Corp Mobile communication devices with dual mode, dual standby and dual active function and methods for dynamically changing coupling paths of antennas
CN106603114A (en) * 2016-11-30 2017-04-26 深圳天珑无线科技有限公司 Electronic apparatus
CN107689812A (en) * 2017-08-31 2018-02-13 广东欧珀移动通信有限公司 Radio-frequency front-end module, mobile terminal and signal processing method
CN112422148A (en) * 2019-12-31 2021-02-26 Oppo广东移动通信有限公司 Radio frequency module and electronic equipment
US11664831B2 (en) 2019-12-31 2023-05-30 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Radio frequency assembly and electronic device
CN111726138A (en) * 2020-06-05 2020-09-29 维沃移动通信有限公司 Radio frequency circuit and electronic device

Also Published As

Publication number Publication date
WO2013063952A1 (en) 2013-05-10

Similar Documents

Publication Publication Date Title
CN202309698U (en) Filtering device, antenna switch module and dual-mode terminal
KR101836199B1 (en) Multi-mode wireless terminal
CN111277278B (en) Radio frequency system and electronic equipment
EP4254808A1 (en) Radio frequency l-pa mid device, radio frequency transceiving system and communication device
EP1551080A1 (en) Antenna device
WO2010133117A1 (en) Radio transceiver for mobile communication terminal
CN102404022A (en) Power amplifying module, radio frequency front end module and multi-mode terminal
US10015701B2 (en) Multimode dual-path terminal
CN106849984A (en) A kind of shared method and system of multi-mode radio frequency
CN101841601A (en) Antenna device and dual-mode intelligent terminal
CN102420632A (en) Radio frequency front end module, multimode terminal and multimode terminal signal sending method
CN102857247B (en) Mobile apparatus with radio frequency architecture supporting simultaneous data and voice communications
CN102404020A (en) Power amplification module, multimode radio frequency transceiver and multimode terminal
CN104468069A (en) TDD/FDD dual-mode reconfigurable wireless communication system and communication method
CN105262496A (en) RF Radio frequency transceiver, electronic device and method for adjusting work frequency band
CN104427656A (en) Signal processing method and device and mobile terminal
CN201263201Y (en) WCDMA/GSM dual-mode mobile phone architecture, dual-mode mobile phone architecture
KR101715403B1 (en) Multimode wireless modem
CN102332929B (en) Dual-mode radio frequency module, dual-mode radio frequency sending, receiving method and user terminal
CN102404881A (en) Dual-mode radio frequency transceiver, filtering device and dual-mode terminal
CN102510582B (en) Multi-mode radio frequency emits processing chip and multimode terminal
CN103378887A (en) Sending and receiving device and method of radio-frequency signals
CN101213760B (en) Apparatus and method for IIP3 control for a wireless transceiver
EP4220971A1 (en) Radio frequency drx device, radio frequency system, and communication apparatus
CN101356739B (en) Multiband antenna switch

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120704

Termination date: 20161104