KR100651545B1 - 이동통신 시스템의 저잡음 증폭장치 및 방법 - Google Patents
이동통신 시스템의 저잡음 증폭장치 및 방법 Download PDFInfo
- Publication number
- KR100651545B1 KR100651545B1 KR1019990017515A KR19990017515A KR100651545B1 KR 100651545 B1 KR100651545 B1 KR 100651545B1 KR 1019990017515 A KR1019990017515 A KR 1019990017515A KR 19990017515 A KR19990017515 A KR 19990017515A KR 100651545 B1 KR100651545 B1 KR 100651545B1
- Authority
- KR
- South Korea
- Prior art keywords
- low noise
- input
- transistor
- output
- matching
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 14
- 230000003321 amplification Effects 0.000 title claims description 6
- 238000003199 nucleic acid amplification method Methods 0.000 title claims description 6
- 238000010295 mobile communication Methods 0.000 title description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
- E05F3/20—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices in hinges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
- F25D23/028—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2323/00—General constructional features not provided for in other groups of this subclass
- F25D2323/02—Details of doors or covers not otherwise covered
- F25D2323/024—Door hinges
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Amplifiers (AREA)
Abstract
Description
Claims (2)
- 무선단말 수신기의 저잡음 증폭장치에 있어서,입력신호를 정합하는 입력정합기와,공통 소오스-공통 게이트 구조를 갖는 제1 및 제2트랜지스터들을 구비하며, 상기 입력정합기에서 출력되는 신호를 저잡음으로 증폭하는 증폭기와,상기 제2트랜지스터의 출력단과 상기 제1트랜지스터의 입력단 사이에 연결되어 입력 전력 이득 정합점과 NFmin(Minimum Noise Figure)점을 근접시키는 부궤환기와,상기 증폭기의 출력을 정합하는 출력정합기로 구성되는 수신기의 저잡음 증폭장치.
- 무선단말 수신기의 저잡음 증폭방법에 있어서,입력신호를 정합하는 과정과,공통 소오스-공통 게이트 구조를 갖는 제1 및 제2트랜지스터들을 이용하여 상기 정합된 신호를 저잡음으로 증폭하는 과정과,상기 제2트랜지스터로부터 출력되는 증폭된 신호를 상기 제1트랜지스터로 궤환시켜 입력 전력 이득 정합점과 NFmin(Minimum Noise Figure)점을 근접시키는 과정으로 이루어짐을 특징으로 하는 수신기의 저잡음 증폭방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019990017515A KR100651545B1 (ko) | 1999-05-15 | 1999-05-15 | 이동통신 시스템의 저잡음 증폭장치 및 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019990017515A KR100651545B1 (ko) | 1999-05-15 | 1999-05-15 | 이동통신 시스템의 저잡음 증폭장치 및 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20000073922A KR20000073922A (ko) | 2000-12-05 |
KR100651545B1 true KR100651545B1 (ko) | 2006-11-28 |
Family
ID=19585770
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019990017515A KR100651545B1 (ko) | 1999-05-15 | 1999-05-15 | 이동통신 시스템의 저잡음 증폭장치 및 방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100651545B1 (ko) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19990048311A (ko) * | 1997-12-09 | 1999-07-05 | 구자홍 | 광대역 저잡음 증폭기 |
-
1999
- 1999-05-15 KR KR1019990017515A patent/KR100651545B1/ko not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19990048311A (ko) * | 1997-12-09 | 1999-07-05 | 구자홍 | 광대역 저잡음 증폭기 |
Also Published As
Publication number | Publication date |
---|---|
KR20000073922A (ko) | 2000-12-05 |
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