KR950022292A - Transmission circuit of satellite communication system repeater - Google Patents

Transmission circuit of satellite communication system repeater Download PDF

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Publication number
KR950022292A
KR950022292A KR1019930030699A KR930030699A KR950022292A KR 950022292 A KR950022292 A KR 950022292A KR 1019930030699 A KR1019930030699 A KR 1019930030699A KR 930030699 A KR930030699 A KR 930030699A KR 950022292 A KR950022292 A KR 950022292A
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KR
South Korea
Prior art keywords
frequency
mixer
communication system
satellite communication
frequencies
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KR1019930030699A
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Korean (ko)
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KR0137345B1 (en
Inventor
김창기
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정장호
금성정보통신 주식회사
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Priority to KR1019930030699A priority Critical patent/KR0137345B1/en
Publication of KR950022292A publication Critical patent/KR950022292A/en
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Publication of KR0137345B1 publication Critical patent/KR0137345B1/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

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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 위성통신 시스템 중계기의 송신회로에 관한 것으로서, 특히 시분할다중접속(TDMA)을 사용하는 지구국의 송신주파수를 위성중계기들이 할당받은 주파수간에 고속으로 절체할 수 있도록 하는 위성통신 시스템 중계기의 송신회로에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission circuit of a satellite communication system repeater, and more particularly, to a transmission circuit of a satellite communication system repeater which enables a high speed switching of a transmission frequency of an earth station using time division multiple access (TDMA) between frequencies allocated by the satellite repeaters. It is about.

이를 위하여 제1혼합기(3),제1뱉드패스핀터(4), 제2혼합기(5), 제2밴드패스필터(6)가 직렬 접속된 주파수 상향기(1)를 포함하는 위성통신 시스템의 중계기 송신회로에 있어서, 상기 주파수상향기(1)의 전단에는 입력되는 변조신호를 분배하는 파워분배기(12)와, 상기 파워분배기(12)의 전압에 의해 각각 서로 다른 주파수를 발생하는 다수의 이퀄라이즈(13a-13n)와, 상기 이퀄라이즈(13a-13n)및 주파수상향기(1) 사이에 연결되고, 절체신호에 의해 제어되어 특정의 중간주파수를 출력하는 중간주파스위치(14)로 이루어진 중간주파수 절체회로(11)를 구비하고, 상기 주파수상향기(1)의 제2혼합기(5)에는 각각의 서로 다른 소정 주파수를 발생하는 다수의 저주파 수발진부(10a-10n)와, 상기 제2혼합기(5)의 일측단 및 다수의 저주파(10a-10n)사이에 연결되고, 절체신호에 의해 제어되는 저주파스위치(9)로 구성되는 고주파수 절체회로(8)을 포함하여서 된 것이다.To this end, the first mixer (3), the first spud pass pinter (4), the second mixer (5), the second band pass filter 6 of the satellite communication system comprising a frequency uplinker (1) connected in series In the repeater transmission circuit, a plurality of equalizers generating different frequencies by power divider 12 for distributing an input modulation signal and voltages of the power divider 12 at the front end of the frequency upgrader 1. Intermediate consisting of an intermediate frequency switch (14) connected between the rise (13a-13n), the equalizing (13a-13n) and the frequency upr (1) and controlled by a switching signal to output a specific intermediate frequency. The second mixer 5 of the frequency enhancer 1 includes a plurality of low frequency oscillators 10a-10n and a second mixer, each having a frequency switching circuit 11 and generating different predetermined frequencies. It is connected between one side end of (5) and a plurality of low frequencies 10a-10n, Which is the hayeoseo including the high-frequency switching circuit (8) consisting of a low-frequency switch 9.

Description

위성통신 시스템 중계기의 송신회로Transmission circuit of satellite communication system repeater

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

제3도는 볼 발명에 따른 중계기의 송신부 블럭도.3 is a block diagram of a transmitter of a repeater according to the present invention.

제4도는 본 발명에 따른 중계기의 주파수상향기의 상세 블럭도.4 is a detailed block diagram of a frequency enhancer of the repeater according to the present invention.

Claims (1)

제1혼합기(3),제1밴드패스필터(4), 제2혼합기(5), 제2밴드패스필터(6)가 직렬 접속된 주파수 상향기(1)를 포함하는 위성통신 시스템의 중계기 송신회로에 있어서, 상기 주파수상향기(1)의 전단에는 입력되는 변조신호를 분배하는 파워분배기(12)와, 상기 파워분배기(12)의 전압에 의해 각각 서로 다른 주파수를 발생하는 다수의 이퀄라이즈(13a-13n)와, 상기 이퀄라이즈(13a-13n)및 주파수상향기(1) 사이에 연결되고, 절체신호에 의해 제어되어 특정의 중간주파수를 출력하는 중간주파스위치(14)로 이루어진 중간주파수 절체회로(11)를 구비하고, 상기 주파수상향기(1)의 제2혼합기(5)에는 각각의 서로 다른 소정 주파수를 발생하는 다수의 저주파 수발진부(10a-10n)와, 상기 제2혼합기(5)의 일측단 및 다수의 저주파(10a-10n)사이에 연결되고, 절체신호에 의해 제어되는 저주파스위치(9)로 구성되는 고주파수 절체회로(8)을 포함하여서 된 것을 특징으로 하는 위성통신 시스템 중계기의 송신회로.Repeater transmission of a satellite communication system including a frequency uplinker 1 having a first mixer 3, a first band pass filter 4, a second mixer 5, and a second band pass filter 6 connected in series In the circuit, a plurality of equalizers generating different frequencies by power divider 12 for distributing an input modulation signal and voltages of the power divider 12 at the front end of the frequency enhancer 1 13a-13n, the intermediate frequency shifting which consists of the intermediate frequency switch 14 connected between the equalization 13a-13n and the frequency booster 1, and controlled by a switching signal and outputting a specific intermediate frequency. The second mixer 5 of the frequency enhancer 1 includes a plurality of low frequency oscillators 10a-10n and a plurality of second mixers 5 for generating predetermined frequencies, respectively. Is connected between one end of the circuit and a plurality of low frequencies 10a-10n and controlled by a switching signal. Transmission of the satellite communication system, the repeater circuit, characterized in that the hayeoseo including the high-frequency switching circuit (8) consisting of a switch (9). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930030699A 1993-12-29 1993-12-29 Transmitting circuit of satellite telecommunication system repeator KR0137345B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930030699A KR0137345B1 (en) 1993-12-29 1993-12-29 Transmitting circuit of satellite telecommunication system repeator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930030699A KR0137345B1 (en) 1993-12-29 1993-12-29 Transmitting circuit of satellite telecommunication system repeator

Publications (2)

Publication Number Publication Date
KR950022292A true KR950022292A (en) 1995-07-28
KR0137345B1 KR0137345B1 (en) 1998-06-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100615595B1 (en) * 2000-01-19 2006-08-25 한국전자통신연구원 Dynamic select apparatus and method of phase equalizer in bs receiver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100615595B1 (en) * 2000-01-19 2006-08-25 한국전자통신연구원 Dynamic select apparatus and method of phase equalizer in bs receiver

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Publication number Publication date
KR0137345B1 (en) 1998-06-01

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