ES420981A1 - Ship-borne antenna arrangements - Google Patents

Ship-borne antenna arrangements

Info

Publication number
ES420981A1
ES420981A1 ES420981A ES420981A ES420981A1 ES 420981 A1 ES420981 A1 ES 420981A1 ES 420981 A ES420981 A ES 420981A ES 420981 A ES420981 A ES 420981A ES 420981 A1 ES420981 A1 ES 420981A1
Authority
ES
Spain
Prior art keywords
antenna
axes
rotation
center
ship
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.)
Expired
Application number
ES420981A
Other languages
Spanish (es)
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.)
Post Office
Original Assignee
Post Office
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 Post Office filed Critical Post Office
Publication of ES420981A1 publication Critical patent/ES420981A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/34—Adaptation for use in or on ships, submarines, buoys or torpedoes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/18—Means for stabilising antennas on an unstable platform

Abstract

Improvements in the antenna systems, and more particularly in an antenna system for controlling the orientation of a directional receiving antenna of said system in a ship, said system comprising a structure including the antenna, the structure having a mass of m kg, and means of support for assembling the structure in a cardaneada and pendulous manner to the vessel with axes of rotation of the structure defined by the support means, which axes intersect in a center of rotation, characterized in that the support means (29) locate the center of gravity of the structure (23) below said center of rotation and spacing thereof at a distance which, in meters, does not exceed 0.002 times the minimum value of the quotient i/m, where i kgm2 is the moment of inertia of the structure (23) around any of said axes, and the support means (29) have a total coulomb friction torque around any of said axes which, in newtons-meters is not their higher than 0.0075 times i, so that the orientation of the antenna (24) is semi-stable. (Machine-translation by Google Translate, not legally binding)
ES420981A 1972-12-01 1973-11-29 Ship-borne antenna arrangements Expired ES420981A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5562872A GB1448559A (en) 1972-12-01 1972-12-01 Ship-borne antenna arrangements

Publications (1)

Publication Number Publication Date
ES420981A1 true ES420981A1 (en) 1976-04-16

Family

ID=10474438

Family Applications (1)

Application Number Title Priority Date Filing Date
ES420981A Expired ES420981A1 (en) 1972-12-01 1973-11-29 Ship-borne antenna arrangements

Country Status (9)

Country Link
JP (1) JPS5731681B2 (en)
CA (1) CA997466A (en)
DE (1) DE2359877C3 (en)
ES (1) ES420981A1 (en)
FR (1) FR2209225B1 (en)
GB (1) GB1448559A (en)
NL (1) NL165009C (en)
NO (1) NO136691C (en)
SE (1) SE388504B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6026364B2 (en) * 1978-09-29 1985-06-24 花王株式会社 skin protection cosmetics
NO833167L (en) * 1982-09-06 1984-03-07 Mc Michael Ltd STABILISASJONSMEKANISME
US4596989A (en) * 1983-02-14 1986-06-24 Tracor Bei, Inc. Stabilized antenna system having an acceleration displaceable mass
FR2550390B1 (en) * 1983-08-03 1985-11-29 Legall Jean Claude PASSIVE STABILIZATION ANTENNA MOUNT
TWM353491U (en) * 2008-05-16 2009-03-21 Hsin-Chi Su Antenna stabilizer

Also Published As

Publication number Publication date
NL165009C (en) 1981-02-16
FR2209225A1 (en) 1974-06-28
NL7316390A (en) 1974-06-05
JPS5047541A (en) 1975-04-28
DE2359877C3 (en) 1975-10-30
DE2359877B2 (en) 1975-03-20
NL165009B (en) 1980-09-15
CA997466A (en) 1976-09-21
NO136691B (en) 1977-07-11
SE388504B (en) 1976-10-04
JPS5731681B2 (en) 1982-07-06
FR2209225B1 (en) 1980-03-14
GB1448559A (en) 1976-09-08
NO136691C (en) 1977-10-19
DE2359877A1 (en) 1974-06-20

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