ES2002790A6 - Un circuito amplificador y metodo para controlar su ganancia - Google Patents
Un circuito amplificador y metodo para controlar su gananciaInfo
- Publication number
- ES2002790A6 ES2002790A6 ES8602367A ES8602367A ES2002790A6 ES 2002790 A6 ES2002790 A6 ES 2002790A6 ES 8602367 A ES8602367 A ES 8602367A ES 8602367 A ES8602367 A ES 8602367A ES 2002790 A6 ES2002790 A6 ES 2002790A6
- Authority
- ES
- Spain
- Prior art keywords
- amplifier
- pin diode
- impedance
- gain
- cascaded
- 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
Links
- 230000001419 dependent effect Effects 0.000 title abstract 2
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
- H03G3/3057—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver using at least one diode as controlling device
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/42—Simultaneous measurement of distance and other co-ordinates
- G01S13/44—Monopulse radar, i.e. simultaneous lobing
- G01S13/4436—Monopulse radar, i.e. simultaneous lobing with means specially adapted to maintain the same processing characteristics between the monopulse signals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
- G01S7/4004—Means for monitoring or calibrating of parts of a radar system
- G01S7/4021—Means for monitoring or calibrating of parts of a radar system of receivers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Control Of Amplification And Gain Control (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Attenuators (AREA)
Abstract
UN AMPLIFICADOR DEPENDIENTE DE LA IMPEDANCIA INTERNA TIENE UNA GANANCIA DETERMINADA POR LA IMPEDANCIA EN UN NODO PREDETERMINADO, ESTANDO UN DIODO PIN ACOPLADO A DICHO NODO, SIENDO DICHO DIODO PIN ACTIVADO CON UNA CORRIENTE DE POLARIZACION DIRECTA QUE SIRVE COMO SEÑAL DE CONTROL DE GANANCIA EXACTO (AGC) PARA EL AMPLIFICADOR. PREFERIBLEMENTE, EL DIODO PIN ES ACTIVADO POR UN AMPLIFICADOR OPERACIONAL DE MODO QUE LA IMPEDANCIA ASI ACOPLADA AL NODO PREDETERMINADO EN EL AMPLIFICADOR ES INDEPENDIENTE DE LA TEMPERATURA. EL METODO COMPRENDE ACOPLAR UNA RESISTENCIA VARIABLE AL NODO PREDETERMINADO DENTRO DE DICHO AMPLIFICADOR CONTROLADO POR IMPEDANCIA Y HACER VARIAR DICHA RESISTENCIA DE UNA MANERA LINEAL LOGARITMICA.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/809,628 US4677392A (en) | 1985-12-16 | 1985-12-16 | Cascaded internal impedance dependent amplifier with accurate variable gain control |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2002790A6 true ES2002790A6 (es) | 1988-10-01 |
Family
ID=25201824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES8602367A Expired ES2002790A6 (es) | 1985-12-16 | 1986-10-02 | Un circuito amplificador y metodo para controlar su ganancia |
Country Status (13)
Country | Link |
---|---|
US (1) | US4677392A (es) |
EP (1) | EP0250453B1 (es) |
JP (1) | JPS63501910A (es) |
KR (1) | KR900008761B1 (es) |
AU (1) | AU580194B2 (es) |
CA (1) | CA1286735C (es) |
DE (1) | DE3682678D1 (es) |
DK (1) | DK169802B1 (es) |
EG (1) | EG17648A (es) |
ES (1) | ES2002790A6 (es) |
IL (1) | IL80100A (es) |
NO (1) | NO170510C (es) |
WO (1) | WO1987003755A1 (es) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4924194A (en) * | 1989-05-19 | 1990-05-08 | Motorola, Inc. | RF power amplifier |
US5162678A (en) * | 1990-09-18 | 1992-11-10 | Silicon Systems, Inc. | Temperature compensation control circuit for exponential gain function of an agc amplifier |
US5278519A (en) * | 1991-11-13 | 1994-01-11 | Ericsson Ge Mobile Communications Inc. | Method and apparatus for controlling RF spectral splatter into adjacent channels when activating an RF transmitter |
US5304948A (en) * | 1992-12-11 | 1994-04-19 | Nokia Mobile Phones Ltd. | RF amplifier with linear gain control |
US5307026A (en) * | 1992-12-11 | 1994-04-26 | Nokia Mobile Phones, Ltd. | Variable gain RF amplifier with linear gain control |
FR2761834B1 (fr) * | 1997-04-04 | 1999-10-22 | Thomson Csf | Amplificateur avec etage d'entree en base commune |
US6766153B2 (en) | 2001-04-02 | 2004-07-20 | Itran Communications Ltd. | Dynamic automatic gain control circuit employing kalman filtering |
US10110183B2 (en) * | 2015-02-15 | 2018-10-23 | Skyworks Solutions, Inc. | Power amplification system with common base pre-amplifier |
JP2017183839A (ja) * | 2016-03-28 | 2017-10-05 | 株式会社村田製作所 | 電力増幅回路 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3719831A (en) * | 1969-02-18 | 1973-03-06 | Us Air Force | Logarithmic if amplifier |
BE789148A (fr) * | 1971-09-24 | 1973-01-15 | Dassault Electronique | Appareil recepteur a plusieurs chaines d'amplification montee en parallele |
FR2204333A5 (es) * | 1972-10-20 | 1974-05-17 | Thomson Csf | |
US4275362A (en) * | 1979-03-16 | 1981-06-23 | Rca Corporation | Gain controlled amplifier using a pin diode |
JPS573408A (en) * | 1980-06-06 | 1982-01-08 | Nec Corp | Variable gain amplifying circuit |
JPS5791009A (en) * | 1980-11-27 | 1982-06-07 | Nec Corp | Agc control circuit |
US4524331A (en) * | 1982-09-13 | 1985-06-18 | Orion Industries, Inc. | High input impedance amplifier circuit |
US4464635A (en) * | 1982-11-18 | 1984-08-07 | Zenith Electronics Corporation | Non-reactive limiter |
-
1985
- 1985-12-16 US US06/809,628 patent/US4677392A/en not_active Expired - Lifetime
-
1986
- 1986-09-18 CA CA000518590A patent/CA1286735C/en not_active Expired - Lifetime
- 1986-09-21 IL IL80100A patent/IL80100A/xx not_active IP Right Cessation
- 1986-09-22 JP JP61505180A patent/JPS63501910A/ja active Granted
- 1986-09-22 EP EP86906140A patent/EP0250453B1/en not_active Expired - Lifetime
- 1986-09-22 KR KR1019870700723A patent/KR900008761B1/ko not_active IP Right Cessation
- 1986-09-22 DE DE8686906140T patent/DE3682678D1/de not_active Expired - Fee Related
- 1986-09-22 WO PCT/US1986/001979 patent/WO1987003755A1/en active IP Right Grant
- 1986-09-22 AU AU64040/86A patent/AU580194B2/en not_active Ceased
- 1986-10-02 ES ES8602367A patent/ES2002790A6/es not_active Expired
- 1986-11-10 EG EG720/86A patent/EG17648A/xx active
-
1987
- 1987-07-22 NO NO873082A patent/NO170510C/no unknown
- 1987-08-06 DK DK409887A patent/DK169802B1/da not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
NO873082L (no) | 1987-07-22 |
KR900008761B1 (ko) | 1990-11-29 |
DE3682678D1 (de) | 1992-01-09 |
NO170510B (no) | 1992-07-13 |
WO1987003755A1 (en) | 1987-06-18 |
EP0250453A1 (en) | 1988-01-07 |
EP0250453B1 (en) | 1991-11-27 |
DK409887A (da) | 1987-08-06 |
IL80100A0 (en) | 1986-12-31 |
EG17648A (en) | 1990-08-30 |
US4677392A (en) | 1987-06-30 |
CA1286735C (en) | 1991-07-23 |
JPH0573285B2 (es) | 1993-10-14 |
KR880701044A (ko) | 1988-04-22 |
DK169802B1 (da) | 1995-02-27 |
IL80100A (en) | 1990-09-17 |
AU580194B2 (en) | 1989-01-05 |
NO170510C (no) | 1992-10-21 |
AU6404086A (en) | 1987-06-30 |
JPS63501910A (ja) | 1988-07-28 |
DK409887D0 (da) | 1987-08-06 |
NO873082D0 (no) | 1987-07-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
SA6 | Expiration date (snapshot 920101) |
Free format text: 2006-10-02 |
|
FD1A | Patent lapsed |
Effective date: 20000503 |