FI924923A - satellite antenna - Google Patents

satellite antenna Download PDF

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Publication number
FI924923A
FI924923A FI924923A FI924923A FI924923A FI 924923 A FI924923 A FI 924923A FI 924923 A FI924923 A FI 924923A FI 924923 A FI924923 A FI 924923A FI 924923 A FI924923 A FI 924923A
Authority
FI
Finland
Prior art keywords
antenna
unit
satellite
antenna elements
superscript
Prior art date
Application number
FI924923A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI91460C (en
FI924923A0 (en
FI91460B (en
Inventor
Jouko Aurinsalo
Risto Mutanen
Ismo Huhtinen
Ilkka Pitkaenen
Arto Hujanen
Tapio Salminen
Kalevi Laukkanen
Stefan Tallqvist
Ilkka Marttila
Original Assignee
Valtion Teknillinen
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
Priority claimed from FI915134A external-priority patent/FI91028C/en
Application filed by Valtion Teknillinen filed Critical Valtion Teknillinen
Priority to FI924923A priority Critical patent/FI91460C/en
Publication of FI924923A0 publication Critical patent/FI924923A0/en
Publication of FI924923A publication Critical patent/FI924923A/en
Application granted granted Critical
Publication of FI91460B publication Critical patent/FI91460B/en
Publication of FI91460C publication Critical patent/FI91460C/en

Links

Abstract

The invention concerns a satellite antenna system, especially for voice communication, designed for a moveable land station, which includes an antenna unit 1', which can be aimed at the satellite in the azimuth plane. According to the invention, the satellite antenna system includes a number of antenna elements 1; 1 superscript 1 - 1 superscript 12, from which the antenna unit 1' is formed, a control unit 4 and a coupling unit 5, the antenna elements of the antenna unit being arranged side by side on a circular periphery and of these antenna elements, two antenna elements side by side belong to the same active antenna unit 6, being selected by means of the control unit and the connection unit so as to receive and send circularly polarised electromagnetic radiation from a desired direction, in essentially the same direction. <IMAGE>
FI924923A 1991-10-30 1992-10-29 satellite antenna FI91460C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FI924923A FI91460C (en) 1991-10-30 1992-10-29 satellite antenna

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FI915134 1991-10-30
FI915134A FI91028C (en) 1991-10-30 1991-10-30 Satellite Antenna device
FI924923 1992-10-29
FI924923A FI91460C (en) 1991-10-30 1992-10-29 satellite antenna

Publications (4)

Publication Number Publication Date
FI924923A0 FI924923A0 (en) 1992-10-29
FI924923A true FI924923A (en) 1993-05-01
FI91460B FI91460B (en) 1994-03-15
FI91460C FI91460C (en) 1994-06-27

Family

ID=26159050

Family Applications (1)

Application Number Title Priority Date Filing Date
FI924923A FI91460C (en) 1991-10-30 1992-10-29 satellite antenna

Country Status (1)

Country Link
FI (1) FI91460C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8164505B2 (en) 2007-06-04 2012-04-24 Aalto University Foundation Structure for reducing scattering of electromagnetic waves

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8164505B2 (en) 2007-06-04 2012-04-24 Aalto University Foundation Structure for reducing scattering of electromagnetic waves

Also Published As

Publication number Publication date
FI91460C (en) 1994-06-27
FI924923A0 (en) 1992-10-29
FI91460B (en) 1994-03-15

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Legal Events

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MA Patent expired