KR960027410A - Satellite broadcast repeater (A pepeater) - Google Patents

Satellite broadcast repeater (A pepeater) Download PDF

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Publication number
KR960027410A
KR960027410A KR1019940034135A KR19940034135A KR960027410A KR 960027410 A KR960027410 A KR 960027410A KR 1019940034135 A KR1019940034135 A KR 1019940034135A KR 19940034135 A KR19940034135 A KR 19940034135A KR 960027410 A KR960027410 A KR 960027410A
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KR
South Korea
Prior art keywords
frequency
output
oscillator
outputting
signal
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KR1019940034135A
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Korean (ko)
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KR0140678B1 (en
Inventor
장재선
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배순훈
대우전자 주식회사
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Priority to KR1019940034135A priority Critical patent/KR0140678B1/en
Publication of KR960027410A publication Critical patent/KR960027410A/en
Application granted granted Critical
Publication of KR0140678B1 publication Critical patent/KR0140678B1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18515—Transmission equipment in satellites or space-based relays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/18523—Satellite systems for providing broadcast service to terrestrial stations, i.e. broadcast satellite service

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)

Abstract

본 발명은 위성방송용 중계기에 관한 것으로, 위성방송용 중계기에 사용되는 전압제어유전체공진발진기(40)의 발진주파수 및 위상을 일정하게 제어하는 위상제어부(200)를 추가하여 전압제어유전체공진발진기(40)의 발진주파수를 안정화함과 더불어 위상잡음을 최소화할 수 있는 것이다.The present invention relates to a repeater for satellite broadcasting, by adding a phase control unit (200) for controlling the oscillation frequency and phase of the voltage controlled dielectric resonator oscillator (40) used in the repeater for satellite broadcasting voltage controlled dielectric resonator oscillator (40) In addition to stabilizing the oscillation frequency, the phase noise can be minimized.

Description

위성방송용 중계기(A pepeater)Satellite broadcast repeater (A pepeater)

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 따른위성방송용 중계기의 개략적인 구성도.1 is a schematic configuration diagram of a satellite broadcasting repeater according to the present invention.

Claims (2)

지상국에서 송신된 방송신호를 수신하는 수신안테나(10)와; 상기 안테나(10)를 통하여 수신된 방송신호의 잡음지수를 최소화함과 더불어 증폭시켜 출력하는 저잡음증폭기(20); 상기 저잡음증폭기(20)에서 출력된 방송신호의 주파수 잡음을 제거하여 출력하는 대역통과여파기(30); 고주파발진주파수를 출력하는 전압제어유전체공진발진기(40); 상기 대역통과여파기(30)에서 출력된 방송신호 주파수와 상기 발진주파수를 혼합하여 출력하는 혼합기(50); 상기 혼합기(50)에서 출력된 신호 중 중간주파수신호만을 추출하여 출력하는 중간주파수필터(60); 상기 중간주파수필터 (60)에서 출력된 중간주파수신호를 복조하여 출력하는 복조기(70); 상기 복조기 (70)에서 출력된 신호를 상기 발진부(40)에서 출력된 고주파 발진주파수에 변조하는 고주파변조기(80); 상기 고주파변조기(80)에서 출력된 고주파신호를 고전력 증폭하여 출력하는 고전력증폭기(90) 및 상기 고전력증폭된 방송신호를 지상으로 송신하는 송신안테나(100)를 포함하여 구성된 위성방송용 중계기에 있어서, 상기전압제어유전체공진발진기(40)의 발진주파수 및 위상을 일정하게 제어하는 위상제어부 (200)를 포함하여 구성된 것을 특징으로 하는 위성방송용 중계기.A reception antenna 10 for receiving a broadcast signal transmitted from a ground station; A low noise amplifier 20 for amplifying and outputting the noise index of the broadcast signal received through the antenna 10; A band pass filter 30 which removes and outputs frequency noise of the broadcast signal output from the low noise amplifier 20; A voltage controlled dielectric resonator oscillator 40 for outputting a high frequency oscillation frequency; A mixer (50) for mixing and outputting the broadcasting signal frequency and the oscillation frequency output from the band pass filter (30); An intermediate frequency filter 60 for extracting and outputting only an intermediate frequency signal among the signals output from the mixer 50; A demodulator (70) for demodulating and outputting the intermediate frequency signal output from the intermediate frequency filter (60); A high frequency modulator (80) for modulating the signal output from the demodulator (70) to the high frequency oscillation frequency output from the oscillator (40); In the repeater for satellite broadcasting comprising a high power amplifier 90 for high power amplifying and outputting a high frequency signal output from the high frequency modulator 80 and a transmission antenna 100 for transmitting the high power amplified broadcast signal to the ground, And a phase control unit (200) for controlling the oscillation frequency and phase of the voltage controlled dielectric resonator oscillator (40). 제1항에 있어서, 상기 위상제어부(200)는, 상기 발진부(40)에서 출력된 고주파 발진주파수를 분주하는 프리스케일러(210)와; 상기 프리스케일러(210)의 출력신호를 분주하는 분주기(220); 기준주파수를 발진하는 기준발진기(230); 상기 분주기(220)에서 분주된 출력신호를 상기 기준발진기(230)에서 출력된 기준주파수와 위상비교하는 위상검출기(240); 상기 위상검출기(240)에서 출력된 신호를 필터링하여 검출된 위상차에 의하여 DC 전압을 상기 발진부(40)으로 입력하여 발진부(40)의 발진주파수 및 위상을 안정화하는 저역통과필터(250)를 포함하여 구성된 것을 특징으로 하는 위성방송용 중계기.The apparatus of claim 1, wherein the phase controller (200) comprises: a prescaler (210) for dividing the high frequency oscillation frequency output from the oscillator (40); A divider 220 for dividing the output signal of the prescaler 210; A reference oscillator 230 for oscillating a reference frequency; A phase detector 240 for comparing the output signal divided by the divider 220 with a reference frequency output from the reference oscillator 230; Including a low pass filter 250 for filtering the signal output from the phase detector 240 to stabilize the oscillation frequency and phase of the oscillator 40 by inputting a DC voltage to the oscillator 40 by the detected phase difference Satellite broadcast repeater, characterized in that configured. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940034135A 1994-12-14 1994-12-14 Satellite broadcasting repeator KR0140678B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940034135A KR0140678B1 (en) 1994-12-14 1994-12-14 Satellite broadcasting repeator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940034135A KR0140678B1 (en) 1994-12-14 1994-12-14 Satellite broadcasting repeator

Publications (2)

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KR960027410A true KR960027410A (en) 1996-07-22
KR0140678B1 KR0140678B1 (en) 1998-07-01

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100445705B1 (en) * 1997-02-21 2004-10-28 삼성탈레스 주식회사 Dielectric resonance oscillator and case of the same, especially using minimum elements for distortion or delay of signal
KR101486432B1 (en) * 2008-06-24 2015-01-28 에스케이텔레콤 주식회사 Gap filler for correcting frequency shift and method for excuting the gap filler

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100502496B1 (en) * 2002-11-05 2005-07-20 삼우통신공업 주식회사 Repeating apparatus for satellite broadcasting

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100445705B1 (en) * 1997-02-21 2004-10-28 삼성탈레스 주식회사 Dielectric resonance oscillator and case of the same, especially using minimum elements for distortion or delay of signal
KR101486432B1 (en) * 2008-06-24 2015-01-28 에스케이텔레콤 주식회사 Gap filler for correcting frequency shift and method for excuting the gap filler

Also Published As

Publication number Publication date
KR0140678B1 (en) 1998-07-01

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