JPS5671339A - Antenna device for data relay satellite system - Google Patents

Antenna device for data relay satellite system

Info

Publication number
JPS5671339A
JPS5671339A JP14806579A JP14806579A JPS5671339A JP S5671339 A JPS5671339 A JP S5671339A JP 14806579 A JP14806579 A JP 14806579A JP 14806579 A JP14806579 A JP 14806579A JP S5671339 A JPS5671339 A JP S5671339A
Authority
JP
Japan
Prior art keywords
satellite
satellites
data relay
computer
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14806579A
Other languages
Japanese (ja)
Inventor
Kunito Okubo
Hirokazu Tanaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP14806579A priority Critical patent/JPS5671339A/en
Publication of JPS5671339A publication Critical patent/JPS5671339A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H04B7/204—Multiple access
    • H04B7/2041—Spot beam multiple access

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Radio Relay Systems (AREA)

Abstract

PURPOSE:To enable to make communication with optimum state between both the satellites, even if the position between the data relay satellite and the user satellite is changed, by mounting multibeam antennas and a computer controlling these on the user satellite. CONSTITUTION:On a user satellite 2 in the data relay satellite system consisting of a data relay satellite 1, user satellite 2, and earth station 3, radiation antennas of multibeams 15a-15d consisting of a main reflection mirror 8, subreflection mirror 9, primary radiators 10a-10d, and switching circuit 11, computer 13 controlling the circuit 11, and power feeding circuit 12 are mounted. The computer 13 is stored in advance with the mutual position of both the satellites calculated from the both orbit data of the satellites 1 and 2. When the satellite 2 is at position A, electromagnetic waves are radiated with the beam 15a and when the satellite 2 is at position B, the beam 15b is selected; as such, the computer 13 controls the circuit 11. Thus, even if the mutual position of the satellites is changed, the communication between both the satellites can be made with optimum condition at all times.
JP14806579A 1979-11-15 1979-11-15 Antenna device for data relay satellite system Pending JPS5671339A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14806579A JPS5671339A (en) 1979-11-15 1979-11-15 Antenna device for data relay satellite system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14806579A JPS5671339A (en) 1979-11-15 1979-11-15 Antenna device for data relay satellite system

Publications (1)

Publication Number Publication Date
JPS5671339A true JPS5671339A (en) 1981-06-13

Family

ID=15444404

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14806579A Pending JPS5671339A (en) 1979-11-15 1979-11-15 Antenna device for data relay satellite system

Country Status (1)

Country Link
JP (1) JPS5671339A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02206778A (en) * 1989-02-07 1990-08-16 Natl Space Dev Agency Japan<Nasda> Antenna tracking device of space navigating body

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02206778A (en) * 1989-02-07 1990-08-16 Natl Space Dev Agency Japan<Nasda> Antenna tracking device of space navigating body

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