SE9700669D0 - Anordning och förfarande vid telekommunikation - Google Patents
Anordning och förfarande vid telekommunikationInfo
- Publication number
- SE9700669D0 SE9700669D0 SE9700669A SE9700669A SE9700669D0 SE 9700669 D0 SE9700669 D0 SE 9700669D0 SE 9700669 A SE9700669 A SE 9700669A SE 9700669 A SE9700669 A SE 9700669A SE 9700669 D0 SE9700669 D0 SE 9700669D0
- Authority
- SE
- Sweden
- Prior art keywords
- basic frequency
- frequency band
- filter
- harmonics
- power amplifier
- Prior art date
Links
- 230000002441 reversible effect Effects 0.000 abstract 1
- 230000001629 suppression Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/0153—Electrical filters; Controlling thereof
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
- H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
- H03F3/193—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only with field-effect devices
- H03F3/1935—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only with field-effect devices with junction-FET devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/72—Gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/0123—Frequency selective two-port networks comprising distributed impedance elements together with lumped impedance elements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/17—Structural details of sub-circuits of frequency selective networks
- H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
- H03H7/1775—Parallel LC in shunt or branch path
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/17—Structural details of sub-circuits of frequency selective networks
- H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
- H03H7/1791—Combined LC in shunt or branch path
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/38—Impedance-matching networks
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Transmitters (AREA)
- Transceivers (AREA)
Priority Applications (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9700669A SE508506C2 (sv) | 1997-02-25 | 1997-02-25 | Anordning och förfarande vid telekommunikation |
MYPI98000585A MY128729A (en) | 1997-02-25 | 1998-02-12 | Device and process for telecommunication |
US09/023,162 US6023611A (en) | 1997-02-25 | 1998-02-13 | Filter device for suppressing harmonics in radio frequency signals when dual frequencies exist |
EEP199900365A EE03499B1 (et) | 1997-02-25 | 1998-02-20 | Elektersides kasutatav seade ja meetod |
EP98908366A EP0963624A1 (en) | 1997-02-25 | 1998-02-20 | Device and process for telecommunication |
JP53656298A JP4073964B2 (ja) | 1997-02-25 | 1998-02-20 | 通信のためのデバイスおよび方法 |
PCT/SE1998/000305 WO1998037626A1 (en) | 1997-02-25 | 1998-02-20 | Device and process for telecommunication |
BR9807747-3A BR9807747A (pt) | 1997-02-25 | 1998-02-20 | Dispositivos de filtro e amplificador de energia, processo para a supressão das harmÈnicas em um sinal de frequência de rádio, e, estação móvel. |
KR10-1999-7007257A KR100463924B1 (ko) | 1997-02-25 | 1998-02-20 | 무선 통신 장치 및 방법 |
AU66412/98A AU737208B2 (en) | 1997-02-25 | 1998-02-20 | Device and process for telecommunication |
CNB98802814XA CN1135688C (zh) | 1997-02-25 | 1998-02-20 | 用于远程通信的设备和方法 |
HK00106174A HK1027225A1 (en) | 1997-02-25 | 2000-09-28 | Device and process for telecommunication |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9700669A SE508506C2 (sv) | 1997-02-25 | 1997-02-25 | Anordning och förfarande vid telekommunikation |
US09/023,162 US6023611A (en) | 1997-02-25 | 1998-02-13 | Filter device for suppressing harmonics in radio frequency signals when dual frequencies exist |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9700669D0 true SE9700669D0 (sv) | 1997-02-25 |
SE9700669L SE9700669L (sv) | 1998-08-26 |
SE508506C2 SE508506C2 (sv) | 1998-10-12 |
Family
ID=26662910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9700669A SE508506C2 (sv) | 1997-02-25 | 1997-02-25 | Anordning och förfarande vid telekommunikation |
Country Status (6)
Country | Link |
---|---|
US (1) | US6023611A (sv) |
EP (1) | EP0963624A1 (sv) |
CN (1) | CN1135688C (sv) |
BR (1) | BR9807747A (sv) |
SE (1) | SE508506C2 (sv) |
WO (1) | WO1998037626A1 (sv) |
Families Citing this family (46)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3811557B2 (ja) * | 1997-10-21 | 2006-08-23 | 松下電器産業株式会社 | 複数周波数帯域高効率線形電力増幅器 |
US6304748B1 (en) * | 1998-09-23 | 2001-10-16 | Conexant Systems, Inc. | Transmitter circuitry for a cellular phone |
JP2000349579A (ja) * | 1999-06-08 | 2000-12-15 | Zanden Audio Syst:Kk | デジタルオーディオ用帯域制限アナログフィルタ及びこれを用いた音声信号増幅装置 |
DE19928942C2 (de) * | 1999-06-24 | 2001-10-18 | Siemens Ag | Schaltungsanordnung zur Anpassung eines Verstärkers an eine Hochfrequenzleitung und Verwendung dieser Schaltungsanordnung |
FI19992729A (sv) * | 1999-12-20 | 2001-06-21 | Nokia Networks Oy | Byte av frekvensområde i ett telekommunikationssystem |
GB0004885D0 (en) | 2000-03-01 | 2000-04-19 | Alstom | Improvements in and relating to filers and filter components |
DE10015315B4 (de) * | 2000-03-28 | 2015-02-05 | Robert Bosch Gmbh | Antennenverstärker und regelbares Stellglied |
KR100342715B1 (ko) * | 2000-05-22 | 2002-07-02 | 서평원 | 통신기기의 고조파 제거장치 |
US6389269B1 (en) * | 2000-06-15 | 2002-05-14 | Motorola, Inc. | Method and apparatus for multiple band transmission |
US6950410B1 (en) * | 2000-07-14 | 2005-09-27 | Telefonaktiebolaget Lm Ericsson (Publ) | Frequency multiplexer |
FI20002881A (sv) * | 2000-12-29 | 2002-06-30 | Nokia Corp | Arrangemang och förfarande för att minska förluster i en radiosändare |
WO2002082637A1 (en) * | 2001-04-06 | 2002-10-17 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for increasing the efficiency of a transmitter |
EP1248362B1 (en) * | 2001-04-06 | 2009-03-04 | Telefonaktiebolaget LM Ericsson (publ) | Method and apparatus for increasing the efficiency of a transmitter |
US7062237B2 (en) * | 2001-06-05 | 2006-06-13 | Telefonaktiebolaget Lm Ericsson (Publ) | Power amplifier (PA) with improved power regulation |
JP2002374466A (ja) * | 2001-06-18 | 2002-12-26 | Funai Electric Co Ltd | デジタル/アナログ放送受信機 |
JP3874241B2 (ja) * | 2001-07-27 | 2007-01-31 | 株式会社ルネサステクノロジ | 電子部品および設計方法 |
US6680652B2 (en) | 2001-08-06 | 2004-01-20 | Rf Micro Devices, Inc. | Load switching for transmissions with different peak-to-average power ratios |
US7071792B2 (en) * | 2001-08-29 | 2006-07-04 | Tropian, Inc. | Method and apparatus for impedance matching in an amplifier using lumped and distributed inductance |
GB0121390D0 (en) * | 2001-09-05 | 2001-10-24 | Koninkl Philips Electronics Nv | Power amplifier |
DE10233775B4 (de) * | 2002-07-25 | 2009-10-08 | Telefonaktiebolaget Lm Ericsson (Publ) | Verfahren zum Dimensionieren eines Anpassglieds im Sendezweig eines Mobilfunkgeräts |
FR2869743A1 (fr) * | 2004-04-29 | 2005-11-04 | Thomson Licensing Sa | Terminal utilisateur bi-directionnel de large diffusion a frequences d'emission configurables |
US7215221B1 (en) * | 2004-08-30 | 2007-05-08 | Hrl Laboratories, Llc | Harmonic termination circuit for medium bandwidth microwave power amplifiers |
US7176769B1 (en) * | 2004-11-29 | 2007-02-13 | Hrl Laboratories, Llc | Harmonic termination circuit for medium bandwidth microwave power amplifiers |
US7274270B2 (en) | 2005-04-13 | 2007-09-25 | Avago Technologies Wireless Ip (Singapore) Pte. Ltd. | Resonator matching network |
EP1876722B1 (en) * | 2005-04-28 | 2016-08-24 | Murata Manufacturing Co., Ltd. | High frequency switching module and method for adjusting frequency characteristic of high frequency circuit |
EP1780888A1 (en) * | 2005-10-12 | 2007-05-02 | STMicroelectronics S.r.l. | Notch filter and apparatus for receiving and transmitting radio-frequency signals which comprises said filter |
EP2060007A2 (en) * | 2006-08-14 | 2009-05-20 | Nxp B.V. | Equalizer |
WO2008120756A1 (ja) * | 2007-03-29 | 2008-10-09 | Kyocera Corporation | 携帯無線機 |
JP5079387B2 (ja) * | 2007-05-10 | 2012-11-21 | 株式会社エヌ・ティ・ティ・ドコモ | 整合回路 |
US20090131001A1 (en) * | 2007-11-16 | 2009-05-21 | James Breslin | Switch architecture |
CN102385500A (zh) * | 2010-09-06 | 2012-03-21 | 奇景光电股份有限公司 | 信号传输系统与显示系统以及电子装置 |
WO2012040879A1 (en) * | 2010-09-30 | 2012-04-05 | Telefonaktiebolaget Lm Ericsson (Publ) | Multi-band switched-mode power amplifier |
US8803615B2 (en) * | 2012-01-23 | 2014-08-12 | Qualcomm Incorporated | Impedance matching circuit with tunable notch filters for power amplifier |
TWI568203B (zh) * | 2012-08-31 | 2017-01-21 | Yong-Sheng Huang | Harmonic Suppression Method of Radio Frequency Circuits |
US9035703B2 (en) * | 2012-12-17 | 2015-05-19 | Qualcomm Incorporated | Tunable wide band driver amplifier |
JP6406362B2 (ja) | 2015-02-02 | 2018-10-17 | 株式会社村田製作所 | 可変フィルタ回路、高周波モジュール回路、および、通信装置 |
US11211954B2 (en) * | 2015-03-10 | 2021-12-28 | Blackberry Limited | Supporting multiple frequency bands |
WO2018061949A1 (ja) | 2016-09-29 | 2018-04-05 | 株式会社村田製作所 | 弾性波フィルタ装置、マルチプレクサ、高周波フロントエンド回路及び通信装置 |
WO2018061950A1 (ja) | 2016-09-29 | 2018-04-05 | 株式会社村田製作所 | 弾性波フィルタ装置、マルチプレクサ、高周波フロントエンド回路及び通信装置 |
WO2018135538A1 (ja) | 2017-01-19 | 2018-07-26 | 株式会社村田製作所 | 高周波フィルタ、高周波フロントエンド回路、および通信装置 |
TWI654830B (zh) * | 2018-05-18 | 2019-03-21 | 立積電子股份有限公司 | 功率放大裝置 |
CN108964615A (zh) * | 2018-08-22 | 2018-12-07 | 广东工业大学 | 一种功率放大器及通信系统 |
US10971789B2 (en) * | 2018-08-30 | 2021-04-06 | Qualcomm Incorporated | Transmission-line filtering with enhanced frequency response |
TWI704767B (zh) * | 2019-09-02 | 2020-09-11 | 立積電子股份有限公司 | 放大裝置 |
CN111884614A (zh) * | 2020-08-24 | 2020-11-03 | 武汉博畅通信设备有限责任公司 | 一种108-270MHz跳频滤波器 |
CN113411062B (zh) | 2021-08-19 | 2022-03-29 | 深圳飞骧科技股份有限公司 | 匹配电路、射频前端功率放大电路及移动通信设备 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE358799B (sv) * | 1971-12-06 | 1973-08-06 | Sonab Dev Ab | |
US4621244A (en) * | 1984-05-17 | 1986-11-04 | At&T Bell Laboratories | Broadband variable attenuator using transmission lines series coupled by adjustable pin diodes |
IN165870B (sv) * | 1985-06-25 | 1990-02-03 | Siemens Ag | |
US4811422A (en) * | 1986-12-22 | 1989-03-07 | Kahn Leonard R | Reduction of undesired harmonic components |
FR2617655B1 (fr) * | 1987-06-30 | 1994-05-20 | Telecommunicat Radioelect Teleph | Dispositif d'attenuation variable destine a etre insere entre un circuit emetteur et un circuit de charge |
US4803447A (en) | 1988-02-29 | 1989-02-07 | Motorola, Inc. | Three terminal remotely controlled SPDT antenna switch |
US5034708A (en) * | 1989-05-16 | 1991-07-23 | Automatic Testing And Networking, Inc. | Programmable broadband electronic tuner |
JP3086512B2 (ja) * | 1990-11-14 | 2000-09-11 | エリクソン−ジーイー モービル コミュニケーションズ ホールディング インコーポレイテッド | 送信機及びその電力増幅回路 |
FR2673055B1 (fr) * | 1991-02-18 | 1993-04-23 | Matra Communication | Module d'amplification bibande. |
US5187457A (en) * | 1991-09-12 | 1993-02-16 | Eni Div. Of Astec America, Inc. | Harmonic and subharmonic filter |
JPH06188622A (ja) * | 1992-12-16 | 1994-07-08 | Murata Mfg Co Ltd | アンテナ共用器 |
US5423078A (en) * | 1993-03-18 | 1995-06-06 | Ericsson Ge Mobile Communications Inc. | Dual mode power amplifier for analog and digital cellular telephones |
GB2280808B (en) | 1993-08-07 | 1997-06-11 | Motorola Gmbh | A filter and a radio communications device comprising the same |
JP3384857B2 (ja) | 1994-02-04 | 2003-03-10 | 株式会社日立国際電気 | Tvブースタ |
RU2142670C1 (ru) * | 1995-11-16 | 1999-12-10 | Самсунг Электроникс Ко., Лтд. | Устройство линейного усиления мощности |
KR100201808B1 (ko) * | 1995-12-28 | 1999-06-15 | 윤종용 | 무선송신기의 고조파 억압용 저역통과 필터 |
-
1997
- 1997-02-25 SE SE9700669A patent/SE508506C2/sv not_active IP Right Cessation
-
1998
- 1998-02-13 US US09/023,162 patent/US6023611A/en not_active Expired - Lifetime
- 1998-02-20 EP EP98908366A patent/EP0963624A1/en not_active Withdrawn
- 1998-02-20 WO PCT/SE1998/000305 patent/WO1998037626A1/en active IP Right Grant
- 1998-02-20 CN CNB98802814XA patent/CN1135688C/zh not_active Expired - Fee Related
- 1998-02-20 BR BR9807747-3A patent/BR9807747A/pt not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
SE508506C2 (sv) | 1998-10-12 |
BR9807747A (pt) | 2000-02-22 |
EP0963624A1 (en) | 1999-12-15 |
SE9700669L (sv) | 1998-08-26 |
CN1249079A (zh) | 2000-03-29 |
WO1998037626A1 (en) | 1998-08-27 |
US6023611A (en) | 2000-02-08 |
CN1135688C (zh) | 2004-01-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE9700669D0 (sv) | Anordning och förfarande vid telekommunikation | |
NO996283L (no) | Multimodusrettmottaker | |
BR9910658A (pt) | Circuito de sáida de amplificador de potência para uma unidade de rádio móvel de banda dupla, e, processo para operar um circuito de sáida de amplificador de potência para uma unidade de rádio móvel de banda dupla | |
CA2452349A1 (en) | System and method for post filtering peak power reduction in multi-carrier communications systems | |
MY128729A (en) | Device and process for telecommunication | |
WO2003043181A3 (en) | Class-f amplifier using an lc output filter network | |
KR20020026836A (ko) | 파워 증폭기 | |
TR23091A (tr) | Yueksek frekans parazitlerine karsi koruyucu filtreyi iceren statik konvertizoer(konverter) | |
JP3878811B2 (ja) | 周波数多重トランシーバー及び漏話の消去方法 | |
NO952589L (no) | Tilpasningskrets | |
KR960009666A (ko) | 평형 2차측을 갖는 대역 스위치가능 복동조 고주파(rf)회로 | |
DE69524689D1 (de) | Doppelt abgestimmte, frequenzbandumschaltbare HF-Schaltungsanordnung mit symmetrischen Ausgangssignalen | |
CN201509191U (zh) | 用于无线通信系统的发射机 | |
US6181731B1 (en) | Spread spectrum communication device | |
JP3698647B2 (ja) | 前置歪補償回路および電力増幅装置 | |
SE9704758L (sv) | Konstledning | |
KR970008176B1 (ko) | 이동통신기기의 선형 저전력 다운컨버터 | |
RU94038981A (ru) | Умножитель частоты | |
JPS6417519A (en) | Interference wave suppressing system | |
CA2180910A1 (en) | Receiving circuit for a portable telephone set | |
RU2246173C2 (ru) | Широкополосный усилитель | |
JPH0715255A (ja) | 電力増幅器 | |
SU879688A1 (ru) | Вибраторна активна антенна | |
KR960043610A (ko) | 휴대폰 송신장치 | |
JPH01133431A (ja) | マイクロ波受信装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |