DE2217646A1 - Regelbare Hochfrequenzverstärkerschaltung - Google Patents
Regelbare HochfrequenzverstärkerschaltungInfo
- Publication number
- DE2217646A1 DE2217646A1 DE19722217646 DE2217646A DE2217646A1 DE 2217646 A1 DE2217646 A1 DE 2217646A1 DE 19722217646 DE19722217646 DE 19722217646 DE 2217646 A DE2217646 A DE 2217646A DE 2217646 A1 DE2217646 A1 DE 2217646A1
- Authority
- DE
- Germany
- Prior art keywords
- transistor
- impedance
- coupled
- arrangement
- emitter
- 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.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 claims description 20
- 230000007423 decrease Effects 0.000 claims description 10
- 239000004020 conductor Substances 0.000 claims description 8
- 230000003247 decreasing effect Effects 0.000 claims description 5
- 230000009977 dual effect Effects 0.000 claims 2
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 230000033228 biological regulation Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000011324 bead Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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
- 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
Landscapes
- Control Of Amplification And Gain Control (AREA)
- Amplifiers (AREA)
- Superheterodyne Receivers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13380671A | 1971-04-14 | 1971-04-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2217646A1 true DE2217646A1 (de) | 1972-10-19 |
Family
ID=22460382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19722217646 Pending DE2217646A1 (de) | 1971-04-14 | 1972-04-12 | Regelbare Hochfrequenzverstärkerschaltung |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US3792359A (enExample) |
| AU (1) | AU470347B2 (enExample) |
| BE (1) | BE782062A (enExample) |
| CA (1) | CA965848A (enExample) |
| DE (1) | DE2217646A1 (enExample) |
| ES (1) | ES401730A1 (enExample) |
| FR (1) | FR2133688B1 (enExample) |
| GB (1) | GB1379317A (enExample) |
| IT (1) | IT951283B (enExample) |
| NL (1) | NL7204949A (enExample) |
| SE (1) | SE374986B (enExample) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54103601A (en) * | 1978-02-01 | 1979-08-15 | Sony Corp | Uhf electronic tuner |
| US6271721B1 (en) * | 1999-06-23 | 2001-08-07 | Christopher Trask | Common-base transistor amplifiers with linearity augmentation |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE66274C (de) * | V. DlSCHKA, Königl. Ober - Realschuldirector in Fünfkirchen | Springbrunnen | ||
| US3126514A (en) * | 1964-03-24 | John w | ||
| US2941070A (en) * | 1954-06-01 | 1960-06-14 | Hazeltine Research Inc | Constantly forward biased non-linear element across detector input for controlling gain automatically |
| CH340866A (fr) * | 1955-10-27 | 1959-09-15 | Teletype Corp | Dispositif dans lequel se trouvent des organes assurant une commande automatique de gain |
| BE557496A (enExample) * | 1956-05-15 | |||
| GB846131A (en) * | 1956-05-15 | 1960-08-24 | Texas Instruments Inc | Automatic gain controls for radios |
| US3061785A (en) * | 1960-04-08 | 1962-10-30 | Motorola Inc | Transistor protecting circuit |
| US3110864A (en) * | 1960-04-19 | 1963-11-12 | Trak Electronics Company Inc | Fast-response and slow-decay automatic gain control and system |
| US3072849A (en) * | 1960-09-22 | 1963-01-08 | Motorola Inc | Radio receiver having voltage-controlled resonant circuit coupling means between stages |
| US3622887A (en) * | 1969-05-15 | 1971-11-23 | Motorola Inc | Overload compensation circuit for antenna tuning system |
| US3613008A (en) * | 1969-05-15 | 1971-10-12 | Motorola Inc | Overload compensation circuit for antenna tuning system |
-
1971
- 1971-04-14 US US00133806A patent/US3792359A/en not_active Expired - Lifetime
-
1972
- 1972-03-29 CA CA138,493A patent/CA965848A/en not_active Expired
- 1972-04-10 AU AU40961/72A patent/AU470347B2/en not_active Expired
- 1972-04-10 SE SE7204596A patent/SE374986B/xx unknown
- 1972-04-10 IT IT7222976Q patent/IT951283B/it active
- 1972-04-12 GB GB1681972A patent/GB1379317A/en not_active Expired
- 1972-04-12 DE DE19722217646 patent/DE2217646A1/de active Pending
- 1972-04-13 FR FR7212998A patent/FR2133688B1/fr not_active Expired
- 1972-04-13 ES ES401730A patent/ES401730A1/es not_active Expired
- 1972-04-13 NL NL7204949A patent/NL7204949A/xx unknown
- 1972-04-13 BE BE782062A patent/BE782062A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL7204949A (enExample) | 1972-10-17 |
| SE374986B (enExample) | 1975-03-24 |
| US3792359A (en) | 1974-02-12 |
| ES401730A1 (es) | 1975-03-16 |
| CA965848A (en) | 1975-04-08 |
| BE782062A (fr) | 1972-07-31 |
| IT951283B (it) | 1973-06-30 |
| FR2133688A1 (enExample) | 1972-12-01 |
| FR2133688B1 (enExample) | 1977-04-01 |
| GB1379317A (en) | 1975-01-02 |
| AU470347B2 (en) | 1973-10-18 |
| AU4096172A (en) | 1973-10-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OHW | Rejection |