NL7600597A - Aanpassingsinrichting voor hf-antenne. - Google Patents
Aanpassingsinrichting voor hf-antenne.Info
- Publication number
- NL7600597A NL7600597A NL7600597A NL7600597A NL7600597A NL 7600597 A NL7600597 A NL 7600597A NL 7600597 A NL7600597 A NL 7600597A NL 7600597 A NL7600597 A NL 7600597A NL 7600597 A NL7600597 A NL 7600597A
- Authority
- NL
- Netherlands
- Prior art keywords
- antenna
- adjustment device
- adjustment
- Prior art date
Links
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
- H03H7/38—Impedance-matching networks
- H03H7/40—Automatic matching of load impedance to source impedance
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7501969A FR2298903A1 (fr) | 1975-01-22 | 1975-01-22 | Dispositif d'adaptation d'antenne et antenne munie d'un tel dispositif |
Publications (1)
Publication Number | Publication Date |
---|---|
NL7600597A true NL7600597A (nl) | 1976-07-26 |
Family
ID=9150165
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7600597A NL7600597A (nl) | 1975-01-22 | 1976-01-21 | Aanpassingsinrichting voor hf-antenne. |
Country Status (6)
Country | Link |
---|---|
US (1) | US4015223A (de) |
DE (1) | DE2601869C2 (de) |
FR (1) | FR2298903A1 (de) |
GB (1) | GB1519672A (de) |
IT (1) | IT1053349B (de) |
NL (1) | NL7600597A (de) |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3033407A1 (de) * | 1980-09-05 | 1982-04-22 | Robert Bosch Gmbh, 7000 Stuttgart | Sprechfunkgeraet |
US4375051A (en) * | 1981-02-19 | 1983-02-22 | The Perkin-Elmer Corporation | Automatic impedance matching between source and load |
US4493112A (en) * | 1981-11-19 | 1985-01-08 | Rockwell International Corporation | Antenna tuner discriminator |
US4485360A (en) * | 1982-07-16 | 1984-11-27 | Cincinnati Electronics Corporation | Apparatus for and method of impedance matching |
US4621242A (en) * | 1984-03-19 | 1986-11-04 | The Perkin-Elmer Corporation | R.F. impedance match control system |
GB2178616B (en) * | 1985-07-26 | 1989-04-26 | Marconi Co Ltd | Impedance matching arrangement |
US4951009A (en) * | 1989-08-11 | 1990-08-21 | Applied Materials, Inc. | Tuning method and control system for automatic matching network |
US5088971A (en) * | 1991-03-22 | 1992-02-18 | Mobil Oil Corporation | Method of making protruding end stops for plastic reclosable fastener |
FI87864C (fi) * | 1991-05-09 | 1993-02-25 | Telenokia Oy | Anordning och foerfarande foer reglering av ett bandpassfilter, saerskilt ett kombinatorfilter |
DE69405442T2 (de) * | 1993-03-18 | 1998-04-02 | Hyundai Electronics America | Übertragungsempfängerschaltkreis für eine integrierte Schaltung |
US5483680A (en) * | 1994-01-07 | 1996-01-09 | Harris Corporation | Tuning method for automatic antenna couplers |
GB2289989B (en) * | 1994-05-25 | 1999-01-06 | Nokia Mobile Phones Ltd | Adaptive antenna matching |
US5629653A (en) * | 1995-07-07 | 1997-05-13 | Applied Materials, Inc. | RF match detector circuit with dual directional coupler |
US5631611A (en) * | 1996-06-18 | 1997-05-20 | Nautel Limited | Automatic matching and tuning network |
US6414562B1 (en) * | 1997-05-27 | 2002-07-02 | Motorola, Inc. | Circuit and method for impedance matching |
US6825794B2 (en) * | 2000-06-02 | 2004-11-30 | Research In Motion Limited | Wireless communication system using surface acoustic wave (SAW) second harmonic techniques |
US6570462B2 (en) * | 2000-11-08 | 2003-05-27 | Research In Motion Limited | Adaptive tuning device and method utilizing a surface acoustic wave device for tuning a wireless communication device |
US6608603B2 (en) * | 2001-08-24 | 2003-08-19 | Broadcom Corporation | Active impedance matching in communications systems |
EP1542026A1 (de) * | 2003-12-11 | 2005-06-15 | Siemens Aktiengesellschaft | Vorrichtung und Verfahren für die Bestimmung des elektromagnetischen Reflektionsfaktors einer Antenne, Vorrichtung und Verfahren zur automatischen Anpassung eines Leistungsverstärkers an eine Antenne, und Vorrichtung und Verfahren zur automatischen Reduzierung der Ausgangsleistung eines Leistungsverstärkers |
US7545622B2 (en) * | 2006-03-08 | 2009-06-09 | Wispry, Inc. | Micro-electro-mechanical system (MEMS) variable capacitors and actuation components and related methods |
KR100785079B1 (ko) * | 2006-04-04 | 2007-12-12 | 삼성전자주식회사 | 부하의 임피던스 정합시스템 및 정합방법과, 이를 적용한네트워크 분석기 |
FR2934421B1 (fr) * | 2008-07-23 | 2010-08-13 | St Microelectronics Tours Sas | Detection de valeur d'une impedance d'un systeme radiofrequence |
DE102009004720B4 (de) * | 2009-01-15 | 2017-07-27 | Qualcomm Technologies, Inc. (N.D.Ges.D. Staates Delaware) | Multiband-Impedanzanpass-Schaltung zur Anpassung von Planarantennen |
US9143172B2 (en) * | 2009-06-03 | 2015-09-22 | Qualcomm Incorporated | Tunable matching circuits for power amplifiers |
US8963611B2 (en) * | 2009-06-19 | 2015-02-24 | Qualcomm Incorporated | Power and impedance measurement circuits for a wireless communication device |
US8750810B2 (en) * | 2009-07-24 | 2014-06-10 | Qualcomm Incorporated | Power amplifier with switched output matching for multi-mode operation |
US8072272B2 (en) | 2009-08-19 | 2011-12-06 | Qualcomm, Incorporated | Digital tunable inter-stage matching circuit |
US9559639B2 (en) * | 2009-08-19 | 2017-01-31 | Qualcomm Incorporated | Protection circuit for power amplifier |
CN102823129B (zh) * | 2010-01-15 | 2015-07-08 | 维斯普瑞公司 | 可调匹配网路电路拓扑装置及方法 |
US9031523B2 (en) * | 2012-06-26 | 2015-05-12 | Htc Corporation | Systems and methods for determining antenna impedance |
JP6817965B2 (ja) * | 2015-05-18 | 2021-01-20 | キャベンディッシュ・キネティックス・インコーポレイテッドCavendish Kinetics, Inc. | 定在波共振を保持する方法及び装置、環境変化の存在におけるインピーダンス整合、並びに可変リアクタンスアンテナ開口同調を用いた頭部/手効果 |
US10355662B2 (en) | 2016-12-06 | 2019-07-16 | Honeywell International Inc. | Impedance matching using tunable elements |
US10736050B2 (en) | 2018-07-09 | 2020-08-04 | Honeywell International Inc. | Adjusting transmission power of an antenna based on an object causing path loss in a communication link |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3601717A (en) * | 1969-11-20 | 1971-08-24 | Gen Dynamics Corp | System for automatically matching a radio frequency power output circuit to a load |
US3794941A (en) * | 1972-05-08 | 1974-02-26 | Hughes Aircraft Co | Automatic antenna impedance tuner including digital control circuits |
US3846713A (en) * | 1972-06-12 | 1974-11-05 | Drake R Co | Method and apparatus for tuning an amplifier circuit |
US3959746A (en) * | 1973-10-17 | 1976-05-25 | International Telephone And Telegraph Corporation | Automatic antenna coupler tuning control circuit |
-
1975
- 1975-01-22 FR FR7501969A patent/FR2298903A1/fr active Granted
-
1976
- 1976-01-19 GB GB2036/76A patent/GB1519672A/en not_active Expired
- 1976-01-20 DE DE2601869A patent/DE2601869C2/de not_active Expired
- 1976-01-20 IT IT47702/76A patent/IT1053349B/it active
- 1976-01-21 NL NL7600597A patent/NL7600597A/xx not_active Application Discontinuation
- 1976-01-21 US US05/650,855 patent/US4015223A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US4015223A (en) | 1977-03-29 |
DE2601869C2 (de) | 1983-01-13 |
FR2298903A1 (fr) | 1976-08-20 |
IT1053349B (it) | 1981-08-31 |
DE2601869A1 (de) | 1976-07-29 |
FR2298903B1 (de) | 1978-02-24 |
GB1519672A (en) | 1978-08-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BA | A request for search or an international-type search has been filed | ||
BB | A search report has been drawn up | ||
BC | A request for examination has been filed | ||
BC | A request for examination has been filed | ||
BV | The patent application has lapsed | ||
BV | The patent application has lapsed |