FI20002881A - Järjestely ja menetelmä radiolähettimen häviöiden vähentämiseksi - Google Patents
Järjestely ja menetelmä radiolähettimen häviöiden vähentämiseksi Download PDFInfo
- Publication number
- FI20002881A FI20002881A FI20002881A FI20002881A FI20002881A FI 20002881 A FI20002881 A FI 20002881A FI 20002881 A FI20002881 A FI 20002881A FI 20002881 A FI20002881 A FI 20002881A FI 20002881 A FI20002881 A FI 20002881A
- Authority
- FI
- Finland
- Prior art keywords
- arrangement
- radio transmitter
- reducing radio
- losses
- transmitter losses
- Prior art date
Links
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
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B1/0475—Circuits with means for limiting noise, interference or distortion
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
-
- 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
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
- H04B2001/045—Circuits with power amplifiers with means for improving efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transceivers (AREA)
- Transmitters (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20002881A FI20002881A (fi) | 2000-12-29 | 2000-12-29 | Järjestely ja menetelmä radiolähettimen häviöiden vähentämiseksi |
US10/027,089 US7171235B2 (en) | 2000-12-29 | 2001-12-20 | Arrangement and method for reducing losses in radio transmitter |
EP01660249A EP1220460B1 (en) | 2000-12-29 | 2001-12-21 | Arrangement and method for reducing losses in radio transmitter |
DE60130315T DE60130315T2 (de) | 2000-12-29 | 2001-12-21 | Verfahren und Schaltung zur Reduzierung von Verluste eines Funksenders |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20002881A FI20002881A (fi) | 2000-12-29 | 2000-12-29 | Järjestely ja menetelmä radiolähettimen häviöiden vähentämiseksi |
Publications (2)
Publication Number | Publication Date |
---|---|
FI20002881A0 FI20002881A0 (fi) | 2000-12-29 |
FI20002881A true FI20002881A (fi) | 2002-06-30 |
Family
ID=8559837
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI20002881A FI20002881A (fi) | 2000-12-29 | 2000-12-29 | Järjestely ja menetelmä radiolähettimen häviöiden vähentämiseksi |
Country Status (4)
Country | Link |
---|---|
US (1) | US7171235B2 (fi) |
EP (1) | EP1220460B1 (fi) |
DE (1) | DE60130315T2 (fi) |
FI (1) | FI20002881A (fi) |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002204135A (ja) * | 2000-12-28 | 2002-07-19 | Matsushita Electric Ind Co Ltd | 高周波低域通過フィルタ |
JP3937986B2 (ja) * | 2002-09-13 | 2007-06-27 | 株式会社村田製作所 | 送受信フィルタ装置および通信装置 |
EP1704649B1 (en) * | 2003-02-07 | 2009-12-30 | Nxp B.V. | Versatile baseband signal input current splitter |
DE10315046B4 (de) * | 2003-04-02 | 2006-02-02 | Siemens Ag | Schaltungsanordnung für ein Kommunikationsendgerät mit Multi-Mode-Betrieb |
KR100531879B1 (ko) * | 2003-07-09 | 2005-11-29 | 엘지전자 주식회사 | 휴대폰의 고주파 수신회로 |
US7251499B2 (en) * | 2004-06-18 | 2007-07-31 | Nokia Corporation | Method and device for selecting between internal and external antennas |
JP3981104B2 (ja) * | 2004-06-28 | 2007-09-26 | 株式会社東芝 | フィルタ回路及びこれを用いた無線通信装置 |
KR100938619B1 (ko) * | 2004-12-22 | 2010-01-22 | 노키아 코포레이션 | 이동국의 수신기들 및 송신기들 사이의 상호 운용성 개선 |
EP1843368A4 (en) * | 2005-01-27 | 2009-06-03 | Mitsubishi Electric Corp | SWITCHING CIRCUIT |
US7554421B2 (en) * | 2006-05-16 | 2009-06-30 | Intel Corporation | Micro-electromechanical system (MEMS) trampoline switch/varactor |
CN101473433B (zh) | 2006-06-20 | 2011-12-07 | Nxp股份有限公司 | 功率放大器装置 |
US7605675B2 (en) * | 2006-06-20 | 2009-10-20 | Intel Corporation | Electromechanical switch with partially rigidified electrode |
KR100849972B1 (ko) * | 2007-01-25 | 2008-08-01 | 삼성전자주식회사 | Rf 필터, 이를 이용한 디지털 방송 수신 튜너 및 rf신호 처리 장치 |
DE102007050606B3 (de) * | 2007-10-23 | 2009-04-23 | Epcos Ag | Schaltungsanordnung für eine Mobilfunkeinrichtung und Verfahren zum Betrieb |
DE102008003820B4 (de) * | 2008-01-10 | 2013-01-17 | Epcos Ag | Frontendschaltung |
US8688045B2 (en) * | 2008-11-19 | 2014-04-01 | Qualcomm Incorporated | FM transmitter and non-FM receiver integrated on single chip |
US20100197257A1 (en) * | 2009-02-04 | 2010-08-05 | Qualcomm Incorporated | Adjustable receive filter responsive to frequency spectrum information |
US9148889B2 (en) | 2009-06-01 | 2015-09-29 | Qualcomm Incorporated | Control of multiple radios using a database of interference-related information |
US8594056B2 (en) | 2009-06-16 | 2013-11-26 | Qualcomm Incorporated | Method and apparatus for dynamic and dual antenna bluetooth (BT)/WLAN coexistence |
US9161232B2 (en) | 2009-06-29 | 2015-10-13 | Qualcomm Incorporated | Decentralized coexistence manager for controlling operation of multiple radios |
US9185718B2 (en) | 2009-06-29 | 2015-11-10 | Qualcomm Incorporated | Centralized coexistence manager for controlling operation of multiple radios |
US9135197B2 (en) | 2009-07-29 | 2015-09-15 | Qualcomm Incorporated | Asynchronous interface for multi-radio coexistence manager |
US9185719B2 (en) | 2009-08-18 | 2015-11-10 | Qualcomm Incorporated | Method and apparatus for mapping applications to radios in a wireless communication device |
US8903314B2 (en) | 2009-10-29 | 2014-12-02 | Qualcomm Incorporated | Bluetooth introduction sequence that replaces frequencies unusable due to other wireless technology co-resident on a bluetooth-capable device |
CN101789764A (zh) * | 2010-03-09 | 2010-07-28 | 广州市圣大电子有限公司 | 一种射频功率放大器 |
US8670726B2 (en) * | 2010-07-08 | 2014-03-11 | Microsemi Corporation | Architecture for coexistence of multiple band radios |
US9130656B2 (en) | 2010-10-13 | 2015-09-08 | Qualcomm Incorporated | Multi-radio coexistence |
US9118302B2 (en) * | 2011-08-08 | 2015-08-25 | Skyworks Panasonic Filter Solutions Japan Co., Ltd | Filter module |
CN102420634A (zh) * | 2011-12-07 | 2012-04-18 | 捷开通讯科技(上海)有限公司 | 无线通信收发*** |
US10044381B2 (en) * | 2012-02-23 | 2018-08-07 | Qualcomm Incorporated | Wireless device with filters to support co-existence in adjacent frequency bands |
US9820158B2 (en) * | 2012-03-07 | 2017-11-14 | Qualcomm Incorporated | Multi-radio interference mitigation via frequency selectivity |
US9433003B2 (en) | 2012-03-07 | 2016-08-30 | Qualcomm Incorporated | Multi-radio coexistence via timing controls for radios using the same radio access technology |
CN203522706U (zh) * | 2013-01-24 | 2014-04-02 | 芯迪半导体科技(上海)有限公司 | 多频段频率源 |
CN104253292B (zh) * | 2013-06-27 | 2017-09-26 | 华为终端有限公司 | 谐波抑制*** |
CN109257082A (zh) * | 2017-07-14 | 2019-01-22 | 中兴通讯股份有限公司 | 一种天线切换处理方法、装置及*** |
WO2019021841A1 (ja) * | 2017-07-25 | 2019-01-31 | 株式会社村田製作所 | 高周波回路及び通信装置 |
JP2021175084A (ja) * | 2020-04-24 | 2021-11-01 | 株式会社村田製作所 | 高周波回路および通信装置 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4422047A (en) * | 1981-11-23 | 1983-12-20 | E-Systems, Inc. | Solid state autotune power amplifier |
WO1988002559A1 (en) * | 1986-10-06 | 1988-04-07 | Matsushita Electric Industrial Co., Ltd. | Antenna sharing device |
US5276914A (en) | 1990-10-18 | 1994-01-04 | Sony Corporation | Dual-mode transceiver that switches out a large insertion loss filter during transmission |
FI95327C (fi) | 1994-01-26 | 1996-01-10 | Lk Products Oy | Säädettävä suodatin |
DE19514717C2 (de) | 1995-04-21 | 1998-07-16 | Siemens Ag | Schaltungsanordnung für eine Hochfrequenz-Verstärkerstufe insbesondere in einem Sendegerät |
JP3100111B2 (ja) * | 1995-06-26 | 2000-10-16 | 株式会社エヌ・ティ・ティ・ドコモ | 移動無線機のマルチバンド高周波回路 |
FI100286B (fi) * | 1996-04-01 | 1997-10-31 | Nokia Mobile Phones Ltd | Lähetin/vastaanotin RF-signaalin lähettämiseksi ja vastaanottamiseksi kahdella taajuusalueella |
FI117841B (fi) * | 1996-07-18 | 2007-03-15 | Nokia Corp | Järjestely radiotaajuisen signaalin lähettämiseksi ja vastaanottamiseksi kahdella taajuusalueella |
SE508506C2 (sv) * | 1997-02-25 | 1998-10-12 | Ericsson Telefon Ab L M | Anordning och förfarande vid telekommunikation |
JPH10313226A (ja) * | 1997-05-12 | 1998-11-24 | Fujitsu Ltd | 送受分波器および送受分波器を搭載した無線通信装置 |
US6212172B1 (en) * | 1998-05-08 | 2001-04-03 | Omnipoint Corporation | Filtering method to allow FDD and TDD operation in PCS transreceivers |
DE19823049C2 (de) * | 1998-05-22 | 2000-09-21 | Ericsson Telefon Ab L M | Leistungsverstärker-Ausgangsschaltung zur Unterdrückung von Oberschwingungen für eine Mobilfunkeinheit mit Doppelbandbetrieb und Verfahren zum Betreiben derselben |
GB2346049A (en) * | 1999-01-19 | 2000-07-26 | Roke Manor Research | Duplex filtering |
EP1083671A4 (en) * | 1999-02-24 | 2003-03-26 | Mitsubishi Electric Corp | RADIO TERMINAL |
US6442375B1 (en) * | 1999-07-14 | 2002-08-27 | Ericsson Inc. | Systems and methods for maintaining operation of a receiver co-located with a transmitter and susceptible to interference therefrom by desensitization of the receiver |
US6628942B1 (en) * | 1999-10-06 | 2003-09-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for paging and responding to pages in a mobile radio communications system |
US6662028B1 (en) * | 2000-05-22 | 2003-12-09 | Telefonaktiebolaget L.M. Ericsson | Multiple frequency inverted-F antennas having multiple switchable feed points and wireless communicators incorporating the same |
-
2000
- 2000-12-29 FI FI20002881A patent/FI20002881A/fi unknown
-
2001
- 2001-12-20 US US10/027,089 patent/US7171235B2/en not_active Expired - Lifetime
- 2001-12-21 DE DE60130315T patent/DE60130315T2/de not_active Expired - Lifetime
- 2001-12-21 EP EP01660249A patent/EP1220460B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US7171235B2 (en) | 2007-01-30 |
EP1220460A3 (en) | 2004-01-14 |
DE60130315D1 (de) | 2007-10-18 |
US20020086650A1 (en) | 2002-07-04 |
DE60130315T2 (de) | 2008-05-29 |
FI20002881A0 (fi) | 2000-12-29 |
EP1220460B1 (en) | 2007-09-05 |
EP1220460A2 (en) | 2002-07-03 |
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