KR100560000B1 - 위성방송튜너회로 - Google Patents
위성방송튜너회로 Download PDFInfo
- Publication number
- KR100560000B1 KR100560000B1 KR1020040055233A KR20040055233A KR100560000B1 KR 100560000 B1 KR100560000 B1 KR 100560000B1 KR 1020040055233 A KR1020040055233 A KR 1020040055233A KR 20040055233 A KR20040055233 A KR 20040055233A KR 100560000 B1 KR100560000 B1 KR 100560000B1
- Authority
- KR
- South Korea
- Prior art keywords
- circuit
- intermediate frequency
- frequency signal
- filter
- trap
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 13
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 230000010355 oscillation Effects 0.000 claims abstract description 7
- 238000010586 diagram Methods 0.000 description 10
- 230000003321 amplification Effects 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/4446—IF amplifier circuits specially adapted for B&W TV
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- 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
- H03H7/01—Frequency selective two-port networks
- H03H7/12—Bandpass or bandstop filters with adjustable bandwidth and fixed centre frequency
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/24—Continuous tuning of more than one resonant circuit simultaneously, the circuits being tuned to substantially the same frequency, e.g. for single-knob tuning
- H03J3/26—Continuous tuning of more than one resonant circuit simultaneously, the circuits being tuned to substantially the same frequency, e.g. for single-knob tuning the circuits being coupled so as to form a bandpass filter
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/26—Circuits for superheterodyne receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/50—Tuning indicators; Automatic tuning control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/20—Adaptations for transmission via a GHz frequency band, e.g. via satellite
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
Description
Claims (1)
- 안테나로 입력되는 950Mhz-2150Mhz 대역의 고주파신호를 필터링하는 트랩 및 필터회로(11)와, 상기 트랩 및 필터회로를 거친 고주파신호를 저잡음 증폭하는 LNA(21)와, 상기 LNA에서 출력되는 고주파신호를 VCO(40)의 전압제어발진주파수로 혼합하여 중간주파수신호를 생성하는 믹서(30)와, 상기 믹서에서 출력되는 혼합주파수신호를 증폭하는 중간주파증폭기(50)와, 상기 중간주파증폭기에서 증폭출력되는 중간주파수신호를 필터링하는 중간주파필터(60)와, 상기 중간주파필터에서 필터링출력되는 중간주파수신호를 복조하여 A/V 및 디지털데이터를 출력하는 복조기(70)로 위성방송수신용 튜너회로를 구성하되, 상기 트랩 및 필터회로(11)는 특정의 주파수(950Mhz)영역을 컷오프시켜 통과시키기 위해 커패시터(C1,C2,C3)와 PCB 패턴 인덕터(L2,L3)로 구성된 하이패스필터(12)와, 상기 컷오프 주파수의 슬로프를 예리하게 만들어주기 위해 상기 커패시터(C2)와 그의 양단에 병렬 접속되는 인덕터(L1)로 구성된 600Mhz 트랩회로(13)를 포함하는 것을 특징으로 하는 위성방송튜너회로.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040055233A KR100560000B1 (ko) | 2004-07-15 | 2004-07-15 | 위성방송튜너회로 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040055233A KR100560000B1 (ko) | 2004-07-15 | 2004-07-15 | 위성방송튜너회로 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20060006297A KR20060006297A (ko) | 2006-01-19 |
KR100560000B1 true KR100560000B1 (ko) | 2006-03-13 |
Family
ID=37118009
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020040055233A KR100560000B1 (ko) | 2004-07-15 | 2004-07-15 | 위성방송튜너회로 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100560000B1 (ko) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR940003613Y1 (ko) * | 1991-12-10 | 1994-06-02 | 삼성전기주식회사 | 위성방송튜너의 광대역 가변 입력 필터회로 |
KR940027721U (ko) * | 1993-05-12 | 1994-12-10 | 중간 주파단의 대역폭 가변회로 | |
KR970047711U (ko) * | 1995-12-01 | 1997-07-31 | 삼성전기주식회사 | 위성방송용 튜너의 신호분배회로 |
JPH10135785A (ja) | 1996-10-31 | 1998-05-22 | Mitsumi Electric Co Ltd | 衛星放送受信用チューナ装置 |
KR0137021Y1 (ko) * | 1993-11-26 | 1999-04-01 | 윤종용 | 위성방송튜너의 고조파제거회로 |
KR100201479B1 (ko) | 1995-12-04 | 1999-06-15 | 가타오카 마사타카 | 위성방송 수신튜너 |
-
2004
- 2004-07-15 KR KR1020040055233A patent/KR100560000B1/ko not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR940003613Y1 (ko) * | 1991-12-10 | 1994-06-02 | 삼성전기주식회사 | 위성방송튜너의 광대역 가변 입력 필터회로 |
KR940027721U (ko) * | 1993-05-12 | 1994-12-10 | 중간 주파단의 대역폭 가변회로 | |
KR0137021Y1 (ko) * | 1993-11-26 | 1999-04-01 | 윤종용 | 위성방송튜너의 고조파제거회로 |
KR970047711U (ko) * | 1995-12-01 | 1997-07-31 | 삼성전기주식회사 | 위성방송용 튜너의 신호분배회로 |
KR100201479B1 (ko) | 1995-12-04 | 1999-06-15 | 가타오카 마사타카 | 위성방송 수신튜너 |
JPH10135785A (ja) | 1996-10-31 | 1998-05-22 | Mitsumi Electric Co Ltd | 衛星放送受信用チューナ装置 |
Also Published As
Publication number | Publication date |
---|---|
KR20060006297A (ko) | 2006-01-19 |
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