JPS5230107A - Maritime satellite system using variable beam width antenna - Google Patents

Maritime satellite system using variable beam width antenna

Info

Publication number
JPS5230107A
JPS5230107A JP10636475A JP10636475A JPS5230107A JP S5230107 A JPS5230107 A JP S5230107A JP 10636475 A JP10636475 A JP 10636475A JP 10636475 A JP10636475 A JP 10636475A JP S5230107 A JPS5230107 A JP S5230107A
Authority
JP
Japan
Prior art keywords
satellite system
beam width
variable beam
maritime satellite
width antenna
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.)
Granted
Application number
JP10636475A
Other languages
Japanese (ja)
Other versions
JPS5846893B2 (en
Inventor
Tadashi Takano
Noriaki Ishida
Takeji Nara
Yoshifusa Yamada
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP10636475A priority Critical patent/JPS5846893B2/en
Publication of JPS5230107A publication Critical patent/JPS5230107A/en
Publication of JPS5846893B2 publication Critical patent/JPS5846893B2/en
Expired 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
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems

Landscapes

  • 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)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radio Relay Systems (AREA)

Abstract

PURPOSE:To simplify and lower the cost of the antenna control drive system in the the maritime satellite system.
JP10636475A 1975-09-01 1975-09-01 Kahenbe Muhaba Antenna Omochiita Expired JPS5846893B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10636475A JPS5846893B2 (en) 1975-09-01 1975-09-01 Kahenbe Muhaba Antenna Omochiita

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10636475A JPS5846893B2 (en) 1975-09-01 1975-09-01 Kahenbe Muhaba Antenna Omochiita

Publications (2)

Publication Number Publication Date
JPS5230107A true JPS5230107A (en) 1977-03-07
JPS5846893B2 JPS5846893B2 (en) 1983-10-19

Family

ID=14431667

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10636475A Expired JPS5846893B2 (en) 1975-09-01 1975-09-01 Kahenbe Muhaba Antenna Omochiita

Country Status (1)

Country Link
JP (1) JPS5846893B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5668022A (en) * 1979-11-09 1981-06-08 Toshiba Corp Active filter
JPH02275989A (en) * 1990-03-26 1990-11-09 Hitachi Ltd Liquid crystal matrix display device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5668022A (en) * 1979-11-09 1981-06-08 Toshiba Corp Active filter
JPH02275989A (en) * 1990-03-26 1990-11-09 Hitachi Ltd Liquid crystal matrix display device
JPH0368394B2 (en) * 1990-03-26 1991-10-28 Hitachi Ltd

Also Published As

Publication number Publication date
JPS5846893B2 (en) 1983-10-19

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