JP4484871B2 - 周波数選択性の装置、およびそれの無線マルチバンド装置における通信信号の受信/送信方法 - Google Patents
周波数選択性の装置、およびそれの無線マルチバンド装置における通信信号の受信/送信方法 Download PDFInfo
- Publication number
- JP4484871B2 JP4484871B2 JP2006509987A JP2006509987A JP4484871B2 JP 4484871 B2 JP4484871 B2 JP 4484871B2 JP 2006509987 A JP2006509987 A JP 2006509987A JP 2006509987 A JP2006509987 A JP 2006509987A JP 4484871 B2 JP4484871 B2 JP 4484871B2
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- JP
- Japan
- Prior art keywords
- gps
- signal
- band
- wireless communication
- 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
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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
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
- H04B1/406—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with more than one transmission mode, e.g. analog and digital modes
-
- 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
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/44—Transmit/receive switching
- H04B1/48—Transmit/receive switching in circuits for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter
-
- 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
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/50—Circuits using different frequencies for the two directions of communication
- H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transceivers (AREA)
- Circuits Of Receivers In General (AREA)
- Radio Relay Systems (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Description
本発明は、無線通信装置(例えば、無線ハンドセット)における全地球測位システム(GPS)利用可能なアンテナを提供する従来のシステムおよび方法の欠点を大いに軽減する。
Claims (8)
- アンテナ(802)と、
低ノイズ増幅器(LNA)入力インピーダンスと、調節可能な中心周波数とを有するLNA(806)と、
該アンテナ(802)と該LNA(806)との間に接続されたNプレクサ(804)と
を備える、無線通信装置(800)であって、
該Nプレクサは、
第1の周波数バンド内にある第1の信号を該LNA(806)へと通すように構成され、該第1の周波数バンドの外側にある少なくとも一部の信号を減衰するように構成された第1の受信パスと、
第2の周波数バンド内にある第2の信号を該LNA(806)へと通すように構成され、該第2の周波数バンドの外側にある少なくとも一部の信号を減衰するように構成された第2の受信パスと
を備え、
該第2の信号は、GPS信号であり、
該装置は、
該無線通信装置(800)によって受信される該第1の周波数バンドおよび該第2の周波数バンドの各々について信号をフィルタリングするように構成されたイメージ除去フィルタ(808)をさらに備え、
該イメージ除去フィルタ(808)は、該第1の周波数バンドおよび該第2の周波数バンドの各々についての信号ポートを備え、該イメージ除去フィルタは、受信された第1の信号および第2の信号のイメージバンドにおけるノイズを低減する、無線通信装置(800)。 - 前記第1の信号は、PCS信号である、請求項1に記載の無線通信装置(800)。
- 前記Nプレクサ(804)は、
第3の周波数バンド内にある第3の信号を前記LNA(806)へと通すように構成され、該第3の周波数バンドの外側にある少なくとも一部の信号を減衰するように構成された第3の受信パスをさらに備える、請求項1に記載の無線通信装置(800)。 - 前記第3の信号は、セルラー信号である、請求項3に記載の無線通信装置(800)。
- 前記イメージ除去フィルタ(808)は、PCS受信フィルタに結合された第1の受信ポートと、GPS受信フィルタに結合された第2の受信ポートと、セルラー受信フィルタに結合された第3の受信ポートとを備える、請求項4に記載の無線通信装置(800)。
- 前記LNA入力インピーダンスは、90オームに等しく、前記Nプレクサの出力インピーダンスは、50オームに等しい、請求項5に記載の無線通信装置(800)。
- 前記Nプレクサ(804)は、
PCS回路から前記アンテナ(802)へのPCS送信パスと、
GPS回路から該アンテナ(802)へのGPS送信パスと、
セルラー回路から該アンテナ(802)へのセルラー送信パスと
をさらに備える、請求項5に記載の無線通信装置(800)。 - 前記PCS送信パスは、PCS送信フィルタを備え、前記GPS送信パスは、GPS送信フィルタを備え、前記セルラー送信パスは、セルラー送信フィルタを備える、請求項7に記載の無線通信装置(800)。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/417,881 | 2003-04-16 | ||
US10/417,881 US7376440B2 (en) | 2003-04-16 | 2003-04-16 | N-plexer systems and methods for use in a wireless communications device |
PCT/US2004/011387 WO2004095623A1 (en) | 2003-04-16 | 2004-04-13 | A frequency-selective device and method thereof for reception/transmission of communication signals in a wireless multi-band device |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007525857A JP2007525857A (ja) | 2007-09-06 |
JP4484871B2 true JP4484871B2 (ja) | 2010-06-16 |
Family
ID=33159019
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006509987A Expired - Fee Related JP4484871B2 (ja) | 2003-04-16 | 2004-04-13 | 周波数選択性の装置、およびそれの無線マルチバンド装置における通信信号の受信/送信方法 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7376440B2 (ja) |
EP (1) | EP1614185B1 (ja) |
JP (1) | JP4484871B2 (ja) |
AT (1) | ATE376263T1 (ja) |
DE (1) | DE602004009555T2 (ja) |
ES (1) | ES2293312T3 (ja) |
WO (1) | WO2004095623A1 (ja) |
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-
2003
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-
2004
- 2004-04-13 WO PCT/US2004/011387 patent/WO2004095623A1/en active Search and Examination
- 2004-04-13 JP JP2006509987A patent/JP4484871B2/ja not_active Expired - Fee Related
- 2004-04-13 DE DE602004009555T patent/DE602004009555T2/de not_active Expired - Lifetime
- 2004-04-13 ES ES04759843T patent/ES2293312T3/es not_active Expired - Lifetime
- 2004-04-13 AT AT04759843T patent/ATE376263T1/de not_active IP Right Cessation
- 2004-04-13 EP EP04759843A patent/EP1614185B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE602004009555T2 (de) | 2008-07-24 |
EP1614185B1 (en) | 2007-10-17 |
ATE376263T1 (de) | 2007-11-15 |
JP2007525857A (ja) | 2007-09-06 |
US7376440B2 (en) | 2008-05-20 |
US20040209590A1 (en) | 2004-10-21 |
WO2004095623A1 (en) | 2004-11-04 |
ES2293312T3 (es) | 2008-03-16 |
DE602004009555D1 (de) | 2007-11-29 |
EP1614185A1 (en) | 2006-01-11 |
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