US3412404A - Scanning dish reflector having a stowed position - Google Patents

Scanning dish reflector having a stowed position Download PDF

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Publication number
US3412404A
US3412404A US529869A US52986966A US3412404A US 3412404 A US3412404 A US 3412404A US 529869 A US529869 A US 529869A US 52986966 A US52986966 A US 52986966A US 3412404 A US3412404 A US 3412404A
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US
United States
Prior art keywords
reflector
stand
stand member
axis
rotation
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 - Lifetime
Application number
US529869A
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English (en)
Inventor
Bergling Erik Arne
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Saab Bofors AB
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Bofors AB
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Publication date
Application filed by Bofors AB filed Critical Bofors AB
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
    • H01Q3/08—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying two co-ordinates of the orientation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/08—Means for collapsing antennas or parts thereof
    • H01Q1/084—Pivotable antennas

Definitions

  • the present invention is related to a radar antenna system of the type, in which the reflector and associated radiation transmitting and receiving members can be Vertically elevated as well as rotated in azimuth by drive motors and which with this object comprises a reflector stand mounted on a supporting base for rotation about a vertical axis relative to the base, the reflector being mounted on this reflector stand so as to be rotatable relative to the stand about a horizontal axis.
  • Radar antenna systems of this type are primarily used in fire control radar stations for air targets, in which case it is a primary requirement that the reflector can be displaced or directed with a high speed, great accuracy and a small time lag.
  • the rotating and elevating masses of the antenna system have smallest possible inertias about their axes of rotation and that the mechanical motion transferring mechanisms include very small error sources, as for instance dead plays.
  • the radar antenna system can be folded, so that its height above the ground can be reduced, as this will make it easier to move the vehicle for instance in woods, under bridges, etc., and also easier to hide the vehicle from the enemy, when the radar station is not operating.
  • the above requirements are satisfied in that the drive motor for the rotation of the reflector in azimuth as well as the drive motor for the elevation of the reflector are mounted in the supporting base, the azimuth rotation drive motor being coupled to the reflector stand for rotation thereof about its vertical rotation axis relative to the supporting base, whereas the elevation drive motor is coupled to the lower end of an axially displaceable tubular rod extending vertically upwards from the supporting base through the reflector stand coaxially to the vertical rotation axis of the stand so that this tubular rod will be axially displaced in dependence of the rotation of the elevation drive motor.
  • the upper end of this tubular rod located in the reflector stand is coupled to the reflector for rotation thereof about its horizontal elevation axis relative to the reflector stand in dependence of the axially displacement of the rod.
  • the wave guide between the'radar station located in the supporting base and the radiation transmitting and receiving members associated with the antenna reflector comprises a first wave guide member extending vertically upwards from the supporting base through the tubular rod into the reflector stand, in which it is coupled through a rotating wave guide joint coaxial with the horizontal elevation axis of the reflector to a wave guide member rigidly mounted on the reflector and leading to the radiation transmitting and receiving members associated with the reflector.
  • the azimuth rotation drive motor as well as the elevation drive motor are mounted in the supporting base and consequently are not included in the rotating and elevating masses respectively of the antenna system, the inertias of this masses are considerably reduced.
  • the radar antenna system according to the invention will in a very simple way provide an accurate transmission of the movements of the elevation drive motor to the reflector through the tubular, axially displaceable rod, which extends vertically upwards coaxially relative to the vertical rotation axis of the reflector stand and which encloses the wave guide member extending from the supporting base upwards into the reflector stand and to the reflector.
  • the reflector stand consists according to the invention preferably of a lower reflector stand member mounted for rotation on the supporting base and an upper reflector stand member, which is supported by the lower reflector stand member and is pivoted in this about a horizontal folding axis so that it can be folded downwards beside the lower reflector stand member.
  • the reflector is mounted at the upper end of this upper reflector stand member for elevation about its horizontal elevation axis, which is parallel with the folding axis between the upper and the lower reflector stand members. In this way the upper reflector stand member together with the reflector can be folded downwards beside the lower reflector stand member so that the maximum height of the antenna system in this folded position is determined by the height of the lower reflector stand member above the supporting base.
  • the upper end of the tubular rod for the elevation of the reflector is coupled to a first lever arm attached to a horizontal shaft mounted for rotation in the lower reflector stand member parallel to the horizontal elevation axis of the reflector, and this shaft is provided with a second lever arm, which is coupled through a connecting rod to the reflector.
  • the wave guide member disposed inside the tubular rod is then in the lower reflector stand member coupled through a rotating wave guide joint coaxial to the folding axis between the two reflector stand members to the one end of a wave guide member rigidly mounted on the upper reflector stand member, the opposite end of the last mentioned wave guide member being coupled through the rotating wave guide joint coaxial with the horizontal elevation axis of the reflector to the wave guide member rigidly mounted on the reflector.
  • the horizontal shaft in the lower reflector stand member for the lever arms coupled to the upper end of the tubular rod and to the connecting rod respectively and the folding axis between the two reflector stand members are preferably so disposed as to be spaced from each other and to be located on the same side of the vertical rotation axis of the reflector stand, with the folding axis between the two reflector stand members located furthest away from the vertical rotation axis of the reflector stand.
  • lever arm coupled to the connecting rod is then given an effective length substantially corresponding to the radial distance between the rotation axis of this lever arm and the folding axis between the two reflector stand members it will be possible to fold the reflector stand without any axial displacement of the tubular rod; that is it will be possible to fold the reflector stand without disengaging the elevation drive motor from the tubular rod. Furthermore, the reflector will not during the folding movement be rotated about its horizontal elevation axis to any substantial degree.
  • FIG. 2 is a perspective and more detailed illustration of the radar antenna system, in which some parts of the system are shown transparent.
  • FIG. 3 shows the wave guide arrangement and the motion transferring mechanisms for the azimuth rotation and the elevation of the reflector; the reflector stand and the reflector and certain other members being omitted for the larger part.
  • FIG. 1 shows schematically a gun carriage having a chassis 1 and a rotatable gun turret 2 mounted on the chassis.
  • a radar antenna system 3 having a parabolic reflector 4 is mounted on top of the gun turret 2 .
  • the radar antenna system comprises a reflector stand consisting of a lower reflector stand member 5, which is mounted on the upper side of the gun turret 2 for rotation about a vertical axis relative to the gun turret, and an upper reflector stand member 6, which is supported by the lower reflector stand member 5 and is shaped as a double-forked arm.
  • the reflector stand arm 6 is resting upon the lower reflector stand member 5 and can by suitable means be locked in this position relative to the lower reflector stand member.
  • the two arms 7 of the lower fork-shaped end of the reflector stand arm 6 are, however, ivoted about a horizontal shaft 8 in the lower reflector stand member 5, whereby after the locking means between the reflector stand arm 6 and the lower reflector stand member 5 having been released the reflector stand arm 6 can be swung about the shaft 8 to a folded transport position, shown with dotted lines in FIG. 1, beside the lower reflector stand member 5 and behind the gun turret 2.
  • the antenna reflector 4 is pivoted about a horizontal shaft 10 in the outer ends of the arms 9 of the upper fork-shaped end of the reflector stand arm 6.
  • the reflector 4 is provided with two lever arms 11, which are coupled to a fork-shaped connecting rod 12, having its two arms pivoted to two lever arms 13, which are disposed on opposite sides of the lower reflector stand member 5 outside the reflector stand arm 6 and are attached to each one of the ends of a horizontal shaft 14 journalled in the lower reflector stand member 5.
  • a vertical tubular rod 15 is extending from the interior of the gun turret 2 upwards into the lower reflector stand member 5.
  • the tubular rod 15 is axially displaceable and its upper end is provided with a grooved head 16 having two external, horizontal, straight grooves 17, into which the ends of a fork-shaped lever arm 18 attached to the shaft 14 are projecting, as can be seen in FIG. 4.
  • this head 19 is provided with two external, horizontal, straight grooves 20, into which the ends of a fork-shaped lever arm 21 are projecting.
  • the lever arm 21 is attached to horizontal shaft 22, which is stationarily journalled in the gun turret and through suitable gearing means 23 coupled to the elevation drive motor 24 for the antenna reflector, which is mounted inside the gun turret 2.
  • the tubular rod 15 is coaxial relative to the vertical axis of rotation of the lower reflector stand member 5 relative to the gun turret 2, whereby the tubular rod 15 will not prevent the rotation of the reflector stand about its vertical axis and thus the azimuth rotation of the reflector.
  • the radar station is located inside the gun carriage, preferably in the gun turret 2, and is connected to the radiation transmitting and receiving means (not shown in the drawing) associated with the reflector 4 through a wave guide 29, which is stationarily mounted in the lower reflector stand member 5 and is extending from the inside of the gun turret 2 vertically upwards through the tubular rod 15 into the lower reflector stand member 5.
  • the lower end of the wave guide 29 in the gun turret 2 is coupled through a rotating wave guide joint 30 coaxial with the vertical axis of rotation of the lower reflector stand member 5 to a fixed wave guide 31 in the gun turret 2, which wave guide 31 leads to the radar station arranged in the gun turret.
  • the upper end of the wave guide 29 in the lower reflector stand member 5 is bent and inserted into the pivot shaft 8 of the reflector stand arm 6.
  • a rotating wave guide joint 32 coaxial with the shaft 8, which joint connects the wave guide 29 rigidly mounted in the lower reflector stand member 5 to a wave guide 33 rigidly mounted on the outside of the foldable reflector stand arm 6,
  • the other end of the wave guide 33 is coupled through a rotating wave guide joint 34 at the one end of the horizontal elevation shaft 10 of the reflector 4 to a wave guide (not shown in the drawing) stationarily mounted on the reflector 4, which leads to the radiation transmitting and receiving members (not shown in the drawing) associated with the reflector.
  • This arrangement of the wave guide makes it possible to rotate the reflector 4 in azimuth as well as to elevate the reflector by means of the drive motors 24 and 25 respectively mounted in the gun turret 2 and also to lower the reflector stand arm 6 together with the reflector 4 to the transport position shown with dotted lines in FIG. 1.
  • the elevation drive motor as well as the azimuth drive motor for the antenna reflector are mounted in the supporting base for the reflector stand and consequently are not included in the elevating and rotating masses of the antenna system, these masses will have a smaller weight and inertia. Due to this the antenna reflector can be moved at a higher speed and with smaller time lags and by means of smaller drive motors. Furthermore it is achieved that no slip-ring connections are necessary for the electric control signals to the drive motors and this is advantageous, as in such slip-ring connections uncontrolled voltage drops easily appear, which can give cause to an erroneous displacement of the antenna reflector.
  • the measuring devices that are generally necessary for determining the elevation angle and the azimuth angle of the antenna reflector and often also for determining the elevation angular velocity and the azimuth angular velocity of the reflector can be mounted in the gun turret, wherefore also for the metering signals generated by these measuring devices no slip-ring connections are necessary.
  • the azimuth rotation drive motor as well as the elevation drive motor are mounted in the gun turret 2
  • a very accurate displacement of the reflector 2 in azimuth as well as in elevation in agreement with the rotation of the azimuth drive motor and the elevation drive motor respectively is obtained in a very simple and reliable way.
  • FIG. 4 shows the upper end of the tubular rod 15 with the grooved head 16 and the associated lever arm 18 on the shaft 14.
  • each one of the two external horizontal grooves 17 in the head 16 is formed to have two horizontal, exactly parallel roller tracks 35 and 36.
  • the end of the arms of the fork-shaped lever arm 18 cooperating with each groove 17 is provided with two rollers 37 and 38, which are individually rotatable in the arm of the lever arm 18 in such a way that the one roller 37 is running on the loWer roller track 35 in the groove 17, whereas the other roller 38 is running on the upper roller track 37 in the groove 17. In this way any friction and dead play is eliminated in the connection between the lever arm 18 and the tubular rod 15.
  • the lower grooved head 15 at the lower end of the tubular rod 15 and the fork-shaped lever arm 21 cooperating with this head are de:igned in the same way.
  • the reflector stand arm 6 with the reflector 4 can be folded to the transport position without any axial displacement of the tubular rod 15 during the folding movements, whereby it will not be necessary to disconnect the rod 15 from the elevation drive motor and from the servo circuits controlling the elevation of the reflector.
  • the shaft 14 and the folding shaft 8 between the lower reflector stand member 5 and the reflector stand arm 6 are according to the invention disposed spaced from each other and the lever arm 13 mounted on the shaft 14 is designed to have an effective length corresponding to the radial distance between said two shafts.
  • the rod 15 can then by means of the elevation drive motor 27 be displaced and thus the lever arms 13 on the shaft 14 be swung to such a position that the pivot joints between the two lever arms 13 and the two arms of the connecting rod 12 are disposed on or close to the folding axis between the lower reflector stand member 5 and the reflector stand arm 6. Thereafter the reflector stand arm 6 can obviously be folded from its operating position to its transport position without any simultaneous axial displacement of the tubular rod 15 and without any substantial rotation of the reflector 4 about its horizontal elevation axis relative to the reflector stand arm 6.
  • a minor rotation of the reflector 4 about its axis 10 relative to the reflector stand arm 6 during the folding movement can of course be permitted and in certain cases even be desired. It is consequently not necessary that the pivot joints between the two lever arms 13 and the connecting rod 12 are disposed exactly on the folding axis between the lower reflector stand member 5 and the folding reflector stand arm 6 during the folding process, but it is only necessary that they are disposed close to said folding axis.
  • a radar antenna system comprising a reflector, a collapsible supporting stand for said reflector including a lower reflector stand member mounted upon a supporting base member for rota-tion about a vertical axis and an upper reflector stand member pivoted to said lower reflector stand member about a horizontal folding axis so as to be swingable between an operating position above said lower reflector stand member and a folded position beside said lower reflector stand member, said reflector being pivoted in said upper reflector stand member about a horizontal elevation axis parallel to said folding axis, a rotation drive motor mounted in said supporting base member and coupled to said lower reflector stand member for rotation thereof about said vertical rotation axis, an elevation drive motor mounted in said supporting base member, a tubular, axially displaceable rod extending from 'said base member vertically upwards inside said lower'reflector stand member coaxially to said vertical rotation axis so as to have its lower end in said base member and its upper end in said lower reflector stand member, said elevation drive motor being coupled to said lower end
  • a radar antenna system a claimed in claim 4, wherein the side walls of said groove are forming two horizontal roller tracks and said pin on said first lever arm carries two individually rotatable rollers running on said roller tracks.
  • a radar antenna system as claimed in claim 1, comprising a first Wave guide member extending from said base member vertically upwards through said tubular rod into said lower reflector stand member, the upper end of said first wave guide member being coupled through a first rotating Wave guide joint coaxial to said folding axis to the one end of a second wave guide member rigidly mounted on said upper reflector stand member, the opposite end of said second Wave guide member being coupled through a second rotating wave guide joint coaxial to the horizontal elevation axis of said reflector to a third wave guide member rigidly mounted on said reflector.

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  • Aerials With Secondary Devices (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
US529869A 1965-03-02 1966-02-24 Scanning dish reflector having a stowed position Expired - Lifetime US3412404A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE270465 1965-03-02

Publications (1)

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US3412404A true US3412404A (en) 1968-11-19

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US529869A Expired - Lifetime US3412404A (en) 1965-03-02 1966-02-24 Scanning dish reflector having a stowed position

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Country Link
US (1) US3412404A (de)
AT (1) AT270757B (de)
BE (1) BE677264A (de)
CH (1) CH458456A (de)
DE (1) DE1491903C2 (de)
DK (1) DK113223B (de)
ES (1) ES323703A1 (de)
GB (1) GB1084065A (de)
NL (1) NL6602705A (de)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3665477A (en) * 1969-01-08 1972-05-23 Barker Mfg Co Inc Elevatable and foldable antenna
US3739387A (en) * 1969-01-08 1973-06-12 Barker Mfg Co Inc Dual purpose antenna control
US3803614A (en) * 1971-07-07 1974-04-09 Westland Aircraft Ltd Helicopter carried scanning antenna
US4491388A (en) * 1982-05-28 1985-01-01 Wood Douglas E Support carriage for a solar concentrator
US4625188A (en) * 1982-03-05 1986-11-25 Thomson Csf. Pivoting joint for ultra-high frequency waveguides
US4663633A (en) * 1985-10-15 1987-05-05 Wilson John E Vehicle mounted satellite antenna system
US4691207A (en) * 1984-09-04 1987-09-01 Nissho Iwai American Corporation Antenna positioning apparatus
WO1989000772A1 (en) * 1985-08-07 1989-01-26 Radov Mitchell C Satellite earth station
US4811026A (en) * 1987-11-16 1989-03-07 Bissett William R Mobile satellite receiving antenna especially for recreation vehicle
US4821043A (en) * 1986-10-23 1989-04-11 Istec Inc. Steerable windowed enclosures
US5337062A (en) * 1992-11-18 1994-08-09 Winegard Company Deployable satellite antenna for use on vehicles
US5414435A (en) * 1994-03-08 1995-05-09 Wolf Coach, Inc. Space frame satellite dish and aimer support
US5528250A (en) * 1992-11-18 1996-06-18 Winegard Company Deployable satellite antenna for use on vehicles
US5554998A (en) * 1995-03-31 1996-09-10 Winegard Company Deployable satellite antenna for use on vehicles
US5961092A (en) * 1997-08-28 1999-10-05 Satellite Mobile Systems, Inc. Vehicle with a satellite dish mounting mechanism for deployably mounting a satellite dish to the vehicle and method for deployably mounting a satellite dish to a vehicle
US20060038728A1 (en) * 2004-08-13 2006-02-23 Data Technology International, Llc Quick release stowage system for transporting mobile satellite antennas
WO2006020863A2 (en) * 2004-08-13 2006-02-23 Winegard Company Nomadic storable satellite antenna system
US20090040130A1 (en) * 2007-04-13 2009-02-12 Winegard Company High wind elevation mechanism for a satellite antenna system
US20130341294A1 (en) * 2012-05-02 2013-12-26 Gossamer Space Frames Brake system and method for a rotating frame in a solar power generation system
US20140145908A1 (en) * 2012-11-27 2014-05-29 Furuno Electric Co., Ltd. Radar antenna and radar antenna manufacturing method
CN103840247A (zh) * 2012-11-27 2014-06-04 古野电气株式会社 雷达天线及雷达天线的制造方法
CN104169737A (zh) * 2012-01-20 2014-11-26 企业电子公司 采用用于传递雷达反射数据的光纤旋转接头以及用于定位天线的谐波驱动器的可运输雷达
US9377217B2 (en) 2012-01-22 2016-06-28 Heliofocus Ltd Solar concentrating systems
US20170346171A1 (en) * 2014-12-19 2017-11-30 Saab Ab Pivot axle arrangement
PL126476U1 (pl) * 2017-07-11 2019-01-14 Pit-Radwar Spółka Akcyjna Ramię podpory stabilizującej
US10830031B2 (en) * 2018-08-24 2020-11-10 Fuel Automation Station, Llc. Mobile distribution station having satellite dish

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2165999B (en) * 1984-02-09 1988-02-17 Gen Electric Plc A transportable antenna
DE102009042162B3 (de) * 2009-09-10 2011-05-19 Apexsat Gmbh Haltevorrichtung für eine Satellitenantenne zur Ermöglichung eines Azimutschwenkwinkels von 180°

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3286265A (en) * 1962-11-12 1966-11-15 Ca Nat Research Council Scanning reflector on stabilized platform having a stowed position

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3286265A (en) * 1962-11-12 1966-11-15 Ca Nat Research Council Scanning reflector on stabilized platform having a stowed position

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3739387A (en) * 1969-01-08 1973-06-12 Barker Mfg Co Inc Dual purpose antenna control
US3665477A (en) * 1969-01-08 1972-05-23 Barker Mfg Co Inc Elevatable and foldable antenna
US3803614A (en) * 1971-07-07 1974-04-09 Westland Aircraft Ltd Helicopter carried scanning antenna
US4625188A (en) * 1982-03-05 1986-11-25 Thomson Csf. Pivoting joint for ultra-high frequency waveguides
US4491388A (en) * 1982-05-28 1985-01-01 Wood Douglas E Support carriage for a solar concentrator
US4691207A (en) * 1984-09-04 1987-09-01 Nissho Iwai American Corporation Antenna positioning apparatus
WO1989000772A1 (en) * 1985-08-07 1989-01-26 Radov Mitchell C Satellite earth station
US4663633A (en) * 1985-10-15 1987-05-05 Wilson John E Vehicle mounted satellite antenna system
US4821043A (en) * 1986-10-23 1989-04-11 Istec Inc. Steerable windowed enclosures
US4811026A (en) * 1987-11-16 1989-03-07 Bissett William R Mobile satellite receiving antenna especially for recreation vehicle
US5337062A (en) * 1992-11-18 1994-08-09 Winegard Company Deployable satellite antenna for use on vehicles
US5418542A (en) * 1992-11-18 1995-05-23 Winegard Company Deployable satellite antenna for use on vehicles
US5515065A (en) * 1992-11-18 1996-05-07 Winegard Company Deployable satellite antenna for use of vehicles
US5528250A (en) * 1992-11-18 1996-06-18 Winegard Company Deployable satellite antenna for use on vehicles
US5414435A (en) * 1994-03-08 1995-05-09 Wolf Coach, Inc. Space frame satellite dish and aimer support
US5554998A (en) * 1995-03-31 1996-09-10 Winegard Company Deployable satellite antenna for use on vehicles
US5961092A (en) * 1997-08-28 1999-10-05 Satellite Mobile Systems, Inc. Vehicle with a satellite dish mounting mechanism for deployably mounting a satellite dish to the vehicle and method for deployably mounting a satellite dish to a vehicle
WO2006020863A2 (en) * 2004-08-13 2006-02-23 Winegard Company Nomadic storable satellite antenna system
US20060038728A1 (en) * 2004-08-13 2006-02-23 Data Technology International, Llc Quick release stowage system for transporting mobile satellite antennas
US20070013604A1 (en) * 2004-08-13 2007-01-18 Data Technology International, Llc Nomadic storable satellite antenna system
WO2006020863A3 (en) * 2004-08-13 2007-06-07 Winegard Co Nomadic storable satellite antenna system
US7230581B2 (en) * 2004-08-13 2007-06-12 Winegard Company Nomadic storable satellite antenna system
US7397435B2 (en) 2004-08-13 2008-07-08 Winegard Company Quick release stowage system for transporting mobile satellite antennas
US20090040130A1 (en) * 2007-04-13 2009-02-12 Winegard Company High wind elevation mechanism for a satellite antenna system
US7791553B2 (en) 2007-04-13 2010-09-07 Winegard Company High wind elevation mechanism for a satellite antenna system
CN104169737A (zh) * 2012-01-20 2014-11-26 企业电子公司 采用用于传递雷达反射数据的光纤旋转接头以及用于定位天线的谐波驱动器的可运输雷达
US9377217B2 (en) 2012-01-22 2016-06-28 Heliofocus Ltd Solar concentrating systems
US20130341294A1 (en) * 2012-05-02 2013-12-26 Gossamer Space Frames Brake system and method for a rotating frame in a solar power generation system
CN103840248A (zh) * 2012-11-27 2014-06-04 古野电气株式会社 雷达天线及雷达天线的制造方法
CN103840247A (zh) * 2012-11-27 2014-06-04 古野电气株式会社 雷达天线及雷达天线的制造方法
US20140145908A1 (en) * 2012-11-27 2014-05-29 Furuno Electric Co., Ltd. Radar antenna and radar antenna manufacturing method
US9640872B2 (en) * 2012-11-27 2017-05-02 Furuno Electric Co., Ltd. Radar antenna and radar antenna manufacturing method
CN103840248B (zh) * 2012-11-27 2018-07-17 古野电气株式会社 雷达天线及雷达天线的制造方法
CN103840247B (zh) * 2012-11-27 2018-11-02 古野电气株式会社 雷达天线及雷达天线的制造方法
US20170346171A1 (en) * 2014-12-19 2017-11-30 Saab Ab Pivot axle arrangement
US10439274B2 (en) * 2014-12-19 2019-10-08 Saab Ab Pivot axle arrangement
PL126476U1 (pl) * 2017-07-11 2019-01-14 Pit-Radwar Spółka Akcyjna Ramię podpory stabilizującej
US10830031B2 (en) * 2018-08-24 2020-11-10 Fuel Automation Station, Llc. Mobile distribution station having satellite dish

Also Published As

Publication number Publication date
DE1491903C2 (de) 1975-01-23
ES323703A1 (es) 1967-02-01
DK113223B (da) 1969-03-03
CH458456A (de) 1968-06-30
NL6602705A (de) 1966-09-05
AT270757B (de) 1969-05-12
DE1491903B1 (de) 1970-05-27
GB1084065A (de)
BE677264A (de) 1966-08-01

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