JP2001511321A - 無線フロント・エンド回路 - Google Patents
無線フロント・エンド回路Info
- Publication number
- JP2001511321A JP2001511321A JP53079998A JP53079998A JP2001511321A JP 2001511321 A JP2001511321 A JP 2001511321A JP 53079998 A JP53079998 A JP 53079998A JP 53079998 A JP53079998 A JP 53079998A JP 2001511321 A JP2001511321 A JP 2001511321A
- Authority
- JP
- Japan
- Prior art keywords
- mixer
- amplifier
- end circuit
- switch
- wireless front
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
- H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
- H04W52/028—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof switching on or off only a part of the equipment circuit blocks
-
- 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
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/26—Circuits for superheterodyne receivers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Superheterodyne Receivers (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Burglar Alarm Systems (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1. 少なくとも2つの増幅器(1,2)を含み、各増幅器の入力端子は無線の アンテナ端子(3)に接続され、各増幅器の出力端子は関連する混合器(4,5 )の第1の入力端子に接続され、各混合器(4,5)の第2の入力端子は局部発 振器(7)に接続され、及び各混合器(4,5)の出力端子は中間周波数増幅器 (9)の入力端子に接続された無線フロント・エンド回路において、スイッチ( 6)が前記局部発振器(7)と各混合器(4,5)のそれぞれの第2の入力端子 との間に相互接続されて、前記局部発振器(7)をそれぞれの前記混合器(4, 5)へ接続する、及び前記混合器(4,5)から切り離すことを特徴とする無線 フロント・エンド回路。 2. 制御回路(8)が前記スイッチ(6)を制御するようにされていることを 特徴とする請求項1記載の無線フロント・エンド回路。 3. 前記制御回路(8)は信号強度及び/又は干渉強度に応答して前記スイッ チ(6)を制御するようにされていることを特徴とする請求項2記載の無線フロ ント・エンド回路。 4. 前記制御回路(8)は、高い信号強度及び/又は高い干渉強度に応答して 前記混合器のうちの一方(4)から前記局部発振器(7)を切り離すため、及び 低い信号強度及び/又は低い干渉強度に応答してその混合器(4)に前記局部発 振器(7)を接続するために前記スイッチ(6)を制御するようにされてている ことを特徴とする請求項3記載の無線フロント・エンド回路。 5. 前記スイッチ(6)は、前記局部発振器(7)が前記混合器(4)から切 り離されると同時に、前記関連する増幅器(1)の零入力電流をスイッチ・オフ するようにされていることを特徴とする請求項4記載の無線フロント・エンド回 路。 6. 2つの増幅器(1)を備え、前記増幅器のうちの一方は低雑音増幅器(1 )であり、かつ他方は低電流線形増幅器(2)であることを特徴とする請求項1 −5のいずれかに記載の無線フロント・エンド回路。 7. 各混合器(4,5)の前記出力端子は、それぞれ低雑音中間周波数増幅器 (10)及び低電流中間周波数増幅器(11)を介して共通中間周波数増幅器( 9)の入力端子に接続されていることを特徴とする請求項6記載の無線フロント ・エンド回路。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9700043-4 | 1997-01-09 | ||
SE9700043A SE508415C2 (sv) | 1997-01-09 | 1997-01-09 | Högfrekvenskrets för en radiomottagare |
PCT/SE1998/000004 WO1998031108A2 (en) | 1997-01-09 | 1998-01-07 | A radio front-end circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2001511321A true JP2001511321A (ja) | 2001-08-07 |
JP3916006B2 JP3916006B2 (ja) | 2007-05-16 |
Family
ID=20405379
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53079998A Expired - Lifetime JP3916006B2 (ja) | 1997-01-09 | 1998-01-07 | 無線フロント・エンド回路 |
Country Status (14)
Country | Link |
---|---|
US (2) | US6345176B1 (ja) |
EP (1) | EP1012993B1 (ja) |
JP (1) | JP3916006B2 (ja) |
KR (1) | KR100385294B1 (ja) |
CN (1) | CN1109411C (ja) |
AU (1) | AU730784B2 (ja) |
BR (1) | BR9806863A (ja) |
DE (1) | DE69827148T2 (ja) |
EE (1) | EE03501B1 (ja) |
HK (1) | HK1024353A1 (ja) |
MY (1) | MY119024A (ja) |
PL (1) | PL186649B1 (ja) |
SE (1) | SE508415C2 (ja) |
WO (1) | WO1998031108A2 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009526497A (ja) * | 2006-02-09 | 2009-07-16 | クゥアルコム・インコーポレイテッド | 無線通信装置用適応受信機 |
JP2012500597A (ja) * | 2008-08-18 | 2012-01-05 | クゥアルコム・インコーポレイテッド | 負荷切換を用いた高線形性低ノイズ受信器 |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE508415C2 (sv) * | 1997-01-09 | 1998-10-05 | Ericsson Telefon Ab L M | Högfrekvenskrets för en radiomottagare |
US7039377B2 (en) * | 2002-06-14 | 2006-05-02 | Skyworks Solutions, Inc. | Switchable gain amplifier |
CA2521376A1 (en) * | 2003-04-03 | 2004-10-21 | The Government Of The United States Of America, As Represented By The Se Cretary Of The Navy | Dual band superheterodyne radar receiver |
US7027833B1 (en) * | 2003-04-03 | 2006-04-11 | The United States Of America As Represented By The Secretary Of The Navy | Dual band superheterodyne receiver |
JP2005295348A (ja) * | 2004-04-02 | 2005-10-20 | Sharp Corp | 受信機 |
JP2005293785A (ja) * | 2004-04-05 | 2005-10-20 | Elpida Memory Inc | 半導体記憶装置及びそのセルフリフレッシュ制御方法 |
US20060205379A1 (en) * | 2005-03-08 | 2006-09-14 | Intel Corporation | Signal reception enhancement apparatus, systems, and methods |
TW200849844A (en) * | 2007-06-01 | 2008-12-16 | Vivatom Element Co Ltd | Communication device with front-end radio frequency antenna module |
TWI382676B (zh) * | 2007-12-28 | 2013-01-11 | Ind Tech Res Inst | 協調性可調式濾波裝置及之無線通訊前端電路 |
US8140047B2 (en) * | 2009-03-11 | 2012-03-20 | Infineon Technologies Ag | System including receiver front ends |
JP2013106128A (ja) * | 2011-11-11 | 2013-05-30 | Taiyo Yuden Co Ltd | フロントエンドモジュール |
US8787854B2 (en) | 2012-07-25 | 2014-07-22 | Qualcomm Incorporated | Low power local oscillator signal generation |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE242919C (ja) | ||||
US4225823A (en) * | 1977-02-26 | 1980-09-30 | Nippon Gakki Seizo Kabushiki Kaisha | Front end circuits of FM receivers |
DD242919A1 (de) * | 1985-11-21 | 1987-02-11 | Zentr Wissenschaft & Tech Veb | Elektronischer quellenumschalter mit unterschiedlichen eingangsimpedanzen |
US5742896A (en) * | 1990-11-09 | 1998-04-21 | Bose Corporation | Diversity reception with selector switching at superaudible rate |
DE4129830A1 (de) * | 1991-09-07 | 1993-03-25 | Blaupunkt Werke Gmbh | Ukw-empfaenger mit mehreren antennen |
JPH0583153A (ja) * | 1991-09-19 | 1993-04-02 | Toshiba Corp | 広帯域同調回路 |
JPH08205239A (ja) * | 1995-01-25 | 1996-08-09 | Matsushita Electric Ind Co Ltd | 無線電話装置 |
DE69613628T2 (de) * | 1995-04-12 | 2002-05-08 | Matsushita Electric Ind Co Ltd | Eingangsschaltung |
US5687197A (en) * | 1995-07-07 | 1997-11-11 | Motorola, Inc. | Method and apparatus for detecting data symbols in a diversity communication system |
SE508415C2 (sv) * | 1997-01-09 | 1998-10-05 | Ericsson Telefon Ab L M | Högfrekvenskrets för en radiomottagare |
-
1997
- 1997-01-09 SE SE9700043A patent/SE508415C2/sv not_active IP Right Cessation
-
1998
- 1998-01-06 MY MYPI98000053A patent/MY119024A/en unknown
- 1998-01-07 DE DE69827148T patent/DE69827148T2/de not_active Expired - Lifetime
- 1998-01-07 CN CN98801673A patent/CN1109411C/zh not_active Expired - Fee Related
- 1998-01-07 KR KR10-1999-7006026A patent/KR100385294B1/ko not_active IP Right Cessation
- 1998-01-07 WO PCT/SE1998/000004 patent/WO1998031108A2/en active IP Right Grant
- 1998-01-07 JP JP53079998A patent/JP3916006B2/ja not_active Expired - Lifetime
- 1998-01-07 EP EP98900790A patent/EP1012993B1/en not_active Expired - Lifetime
- 1998-01-07 BR BR9806863-6A patent/BR9806863A/pt not_active Application Discontinuation
- 1998-01-07 AU AU55829/98A patent/AU730784B2/en not_active Ceased
- 1998-01-07 PL PL98334443A patent/PL186649B1/pl unknown
- 1998-01-07 EE EEP199900319A patent/EE03501B1/xx not_active IP Right Cessation
- 1998-01-09 US US09/004,766 patent/US6345176B1/en not_active Expired - Lifetime
-
2000
- 2000-06-12 HK HK00103507A patent/HK1024353A1/xx not_active IP Right Cessation
-
2001
- 2001-12-03 US US09/998,140 patent/US20020034931A1/en not_active Abandoned
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009526497A (ja) * | 2006-02-09 | 2009-07-16 | クゥアルコム・インコーポレイテッド | 無線通信装置用適応受信機 |
US8060041B2 (en) | 2006-02-09 | 2011-11-15 | Qualcomm, Incorporated | Adaptive receiver for wireless communication device |
JP2012170121A (ja) * | 2006-02-09 | 2012-09-06 | Qualcomm Inc | 無線通信装置用適応受信機 |
JP2012500597A (ja) * | 2008-08-18 | 2012-01-05 | クゥアルコム・インコーポレイテッド | 負荷切換を用いた高線形性低ノイズ受信器 |
JP2013138458A (ja) * | 2008-08-18 | 2013-07-11 | Qualcomm Inc | 負荷切換を用いた高線形性低ノイズ受信器 |
US8571510B2 (en) | 2008-08-18 | 2013-10-29 | Qualcomm Incorporated | High linearity low noise receiver with load switching |
Also Published As
Publication number | Publication date |
---|---|
EP1012993B1 (en) | 2004-10-20 |
SE508415C2 (sv) | 1998-10-05 |
EP1012993A2 (en) | 2000-06-28 |
HK1024353A1 (en) | 2000-10-05 |
DE69827148D1 (de) | 2004-11-25 |
EE9900319A (et) | 2000-02-15 |
EE03501B1 (et) | 2001-08-15 |
SE9700043L (sv) | 1998-07-10 |
SE9700043D0 (sv) | 1997-01-09 |
KR100385294B1 (ko) | 2003-05-23 |
AU5582998A (en) | 1998-08-03 |
MY119024A (en) | 2005-03-31 |
DE69827148T2 (de) | 2005-10-20 |
US6345176B1 (en) | 2002-02-05 |
WO1998031108A2 (en) | 1998-07-16 |
BR9806863A (pt) | 2000-04-18 |
WO1998031108A3 (en) | 1998-09-11 |
PL186649B1 (pl) | 2004-02-27 |
CN1243618A (zh) | 2000-02-02 |
KR20000069847A (ko) | 2000-11-25 |
AU730784B2 (en) | 2001-03-15 |
CN1109411C (zh) | 2003-05-21 |
PL334443A1 (en) | 2000-02-28 |
JP3916006B2 (ja) | 2007-05-16 |
US20020034931A1 (en) | 2002-03-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7170350B2 (en) | Gain adjusting and circuit arrangement | |
US5903854A (en) | High-frequency amplifier, transmitting device and receiving device | |
JP2001511321A (ja) | 無線フロント・エンド回路 | |
EP1756941B1 (en) | Multi-band low noise amplifier system | |
US6215355B1 (en) | Constant impedance for switchable amplifier with power control | |
JP2001523905A (ja) | モノリシック高周波アンテナスイッチ | |
JPH10173453A (ja) | 高周波可変利得増幅装置および無線通信装置 | |
US20070066256A1 (en) | Apparatus and method for receiving multi band signals in a mobile communication system | |
JP3995739B2 (ja) | 送受信スイッチ | |
JP2000278109A (ja) | 高周波スイッチ、切替型高周波スイッチ、および切替型高周波電力増幅器 | |
US5982240A (en) | Voltage controlled oscillator using a plurality of switchable oscillators | |
JPH08154002A (ja) | 高周波スイッチ | |
JPH09307365A (ja) | 増幅器及びその増幅器を用いた携帯電話機 | |
JPH09284168A (ja) | マイクロ波集積回路及びこのマイクロ波集積回路を 用いた通信システム用端末装置 | |
US6754478B1 (en) | CMOS low noise amplifier | |
JP3036717B2 (ja) | コンバータ回路 | |
JP2002016448A (ja) | 無線周波数増幅器回路及び受信チェーン回路 | |
US5170498A (en) | Band switching filter and satellite broadcast receiving system using the same | |
JP2002314355A (ja) | 多段増幅回路 | |
JP3772431B2 (ja) | 信号処理回路 | |
JPH09162662A (ja) | 可変利得回路 | |
JP3679400B2 (ja) | 高周波スイッチ、高周波スイッチ・増幅回路、および移動体通信端末 | |
JPH11145748A (ja) | 電力増幅回路 | |
JPH10215128A (ja) | 伝送回路 | |
JPH0955674A (ja) | 受信回路 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20040128 |
|
RD02 | Notification of acceptance of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7422 Effective date: 20060214 |
|
RD05 | Notification of revocation of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7425 Effective date: 20060627 |
|
TRDD | Decision of grant or rejection written | ||
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 19980107 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20070109 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20070201 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100216 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110216 Year of fee payment: 4 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120216 Year of fee payment: 5 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130216 Year of fee payment: 6 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130216 Year of fee payment: 6 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140216 Year of fee payment: 7 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
EXPY | Cancellation because of completion of term |