SU130068A1 - Method for reducing thermal noise of linear amplifiers - Google Patents
Method for reducing thermal noise of linear amplifiersInfo
- Publication number
- SU130068A1 SU130068A1 SU639672A SU639672A SU130068A1 SU 130068 A1 SU130068 A1 SU 130068A1 SU 639672 A SU639672 A SU 639672A SU 639672 A SU639672 A SU 639672A SU 130068 A1 SU130068 A1 SU 130068A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- thermal noise
- linear amplifiers
- reducing thermal
- amplifier
- amplifiers
- Prior art date
Links
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- Amplifiers (AREA)
Description
Известный способ снижени термических шумов линейных усилителей , заключающийс в применении комбинированной обратной отрицательной св зи на входе и выходе усилител , имеет ограниченное нримекение ввиду значительной сложности в расчетах и настройки этих усилителей .The known method of reducing the thermal noise of linear amplifiers, which consists in applying a combined negative feedback at the input and output of the amplifier, has a limited influence due to the considerable complexity in the calculations and tuning of these amplifiers.
Предлагаемый способ позвол ет снизить термические шумы магистрали и тем самым снизить капитальные затраты на стро шиес кабельные линии св зи. Это достигаетс тем, что на вход усилител , иодключенного к магистральиой линии -св зи, подключают активный двухполюсник с требуемым дл согласовани сопротивлением и малым уровнем шума.The proposed method makes it possible to reduce the thermal noise of the main line and thereby reduce the capital cost of building cable lines. This is achieved by connecting an active two-pole circuit with the resistance and low noise level required for matching to the input of the amplifier connected to the trunk link.
Суш,ность предлагаемого способа по сн етс блок-схемой.The dryness of the proposed method is explained by the flowchart.
Согласование усилител с кабелем 2 осушествл етс посредством включени нараллельно высокоомному входу усилител активного двухполюсника 3.Matching the amplifier with cable 2 is accomplished by turning on an active two-pole amplifier 3 along a parallel high-resistance input.
Предмет изобретени Subject invention
Способ уменьшени термических шумов линейных усилителей, о :личающийс тем, что, с целью уменьшени шумов в усилителе, подключенно.м к магистральной линии св зи, на вход усилител подключают активный двухполюсник с требуемым дл согласовани сопротивлением и малым уровнем шума.The method of reducing thermal noise of linear amplifiers, is: in order to reduce the noise in the amplifier connected m to the trunk line, an active two-pole switch with the required resistance and low noise level is connected to the amplifier input.
ТЩTSH
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU639672A SU130068A1 (en) | 1959-09-25 | 1959-09-25 | Method for reducing thermal noise of linear amplifiers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU639672A SU130068A1 (en) | 1959-09-25 | 1959-09-25 | Method for reducing thermal noise of linear amplifiers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU130068A1 true SU130068A1 (en) | 1959-11-30 |
Family
ID=48401201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU639672A SU130068A1 (en) | 1959-09-25 | 1959-09-25 | Method for reducing thermal noise of linear amplifiers |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU130068A1 (en) |
-
1959
- 1959-09-25 SU SU639672A patent/SU130068A1/en active
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