WO1999038226A1 - Cover for parabolic devices - Google Patents
Cover for parabolic devices Download PDFInfo
- Publication number
- WO1999038226A1 WO1999038226A1 PCT/NO1999/000017 NO9900017W WO9938226A1 WO 1999038226 A1 WO1999038226 A1 WO 1999038226A1 NO 9900017 W NO9900017 W NO 9900017W WO 9938226 A1 WO9938226 A1 WO 9938226A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- horns
- cover
- shield device
- fastening
- mounting device
- Prior art date
Links
Classifications
-
- 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
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/247—Supports; Mounting means by structural association with other equipment or articles with receiving set with frequency mixer, e.g. for direct satellite reception or Doppler radar
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
Definitions
- This invention relates to a shield device for the microwave horns of parabolic aerials.
- the shield device is especially intended for the horn of parabolic devices having either fixed mounted horns for receiving signals from 1 degree west - 5 degrees east, or possibly motorized horns.
- JP patent applications having the publication Nos. 04-111 601, 63-283 204 and 60-105 301 are disclosing covers for protection of the horns against snowfall, icebounding and rainy weather.
- the covers are rotatable so that snow which have been falling on the upside of the cover will fall off during the rotation of the covers.
- DE patent 4 116 095 describes a closed tubular protection cap of transparent plastic material having a ventilation aperture at the underside.
- the object of this invention is to provide a shield device for the microwave horns of parabolic aerials which in addition to the protection of the horns against snowfall, icebounding and rainy weather also shall prevent reduction of the signals at the input to the feedhorn before the microwave horn. It is known among the manufacturers of parabolic aerials that it is just at the input to the feedhorn before the microwave horn that the signals from a satellite is most susceptible during bad weather. Another object of the invention is to provide a shield device which is easy to mount.
- the shield device according to the invention has a simple structure and can be manufactured at low costs. It is forming an "umbrella" over the horns and prevent reduction of the signals and thereby the picture quality during bad weather.
- Fig. 1 shows schematically a shield device with a cover and mounting device
- Fig. 2 is an exploded view of an embodiment of the shield device and the elements for the fastening thereof
- Fig. 3 shows schematically the shield device on Fig. 2 viewed from the side
- Fig. 4 is a plan view of the shield device arranged centric in relation to the horn
- Fig. 5 is a plan view of the shield s device arranged centric in relation to two horns.
- Fig. 1 of the drawings is showing schematically a shield device according to the invention.
- the cover 1 is on each side connected to a mounting device 2 and an underplate 3 is by fastening screws 7 arranged for fastening the mounting device 2 o on each side of a bar at the end of which the horns are mounted.
- the cover 1 is in the form of an approximately 180° arced light conical shell .
- the cover 1 may also be in the form a part of a cylindrical shell.
- the cover 1 is made of a transparent plastic material s and arranged around the microwave horns and at a distance from the horns.
- the cover 1 is “hollow” and forms an "umbrella” over the horns so that the picture quality is not reduced during bad weather. Because the cover 1 is made of a transparent plastic material a possible partly covering of the signal path will not 0 reduce the signals.
- Fig. 2 of the drawings which is an exploded view is showing an embodiment of the cover 1 and the elements for the fastening thereof to a bar 5 at the end of which the horns 4 are mounted.
- the cover 1 is in the form of an app- 5 roximately 180° arced part of a cylindrical shell.
- the cover 1 is on each side connected to a mounting device 2 by screw joints.
- the mounting device 2 is connected to the bar 5 by means of an underplate 3 and screw joints 7 on each side of the bar 5.
- the mounting device 2 is connected to the bar 5 in the vicinity of o the end thereof where the horn 4 is mounted.
- Fig. 3 of the drawings which is a side view of the embodiment on Fig. 2, is showing the position of the cover 1 over and on the sides of the horn 4.
- the cover 1 may be adjusted in the same angular position as the horn 4 by means of oblong holes 5 6 in the mounting device 2 for the screw joints to the cover 1.
- Fig. 4 of the drawings which is a schematical plan view, is showing the arrangement of the cover 1 centric in relation to the horn 4.
- Fig. 5 of the drawings which is a plan view like Fig. 4, is showing the arrangement of the cover 1 centric in relation to two horns 4.
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU21908/99A AU2190899A (en) | 1998-01-23 | 1999-01-21 | Cover for parabolic devices |
EP99902005A EP1051772A1 (en) | 1998-01-23 | 1999-01-21 | Cover for parabolic devices |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO980297A NO306316B1 (en) | 1998-01-23 | 1998-01-23 | Protection screen for satellite dish |
NO19980297 | 1998-01-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999038226A1 true WO1999038226A1 (en) | 1999-07-29 |
Family
ID=19901582
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NO1999/000017 WO1999038226A1 (en) | 1998-01-23 | 1999-01-21 | Cover for parabolic devices |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1051772A1 (en) |
AU (1) | AU2190899A (en) |
NO (1) | NO306316B1 (en) |
WO (1) | WO1999038226A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2196797A (en) * | 1986-10-23 | 1988-05-05 | Gen Electric Co Plc | Protective cover for antenna feed |
WO1988007268A1 (en) * | 1987-02-24 | 1988-09-22 | Schudel Conrad R | Monocoque antenna structure |
DE4116095A1 (en) * | 1991-05-17 | 1992-11-19 | Uwe Heynen | Weather guard for parabolic-antenna polariser - comprises transparent plastic cap resistant to UV without dampening or scattering waves |
GB2328559A (en) * | 1997-07-23 | 1999-02-24 | Keeling Morgan Darren Robert | All weather satellite feed unit cover |
-
1998
- 1998-01-23 NO NO980297A patent/NO306316B1/en not_active IP Right Cessation
-
1999
- 1999-01-21 WO PCT/NO1999/000017 patent/WO1999038226A1/en not_active Application Discontinuation
- 1999-01-21 AU AU21908/99A patent/AU2190899A/en not_active Abandoned
- 1999-01-21 EP EP99902005A patent/EP1051772A1/en not_active Ceased
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2196797A (en) * | 1986-10-23 | 1988-05-05 | Gen Electric Co Plc | Protective cover for antenna feed |
WO1988007268A1 (en) * | 1987-02-24 | 1988-09-22 | Schudel Conrad R | Monocoque antenna structure |
DE4116095A1 (en) * | 1991-05-17 | 1992-11-19 | Uwe Heynen | Weather guard for parabolic-antenna polariser - comprises transparent plastic cap resistant to UV without dampening or scattering waves |
GB2328559A (en) * | 1997-07-23 | 1999-02-24 | Keeling Morgan Darren Robert | All weather satellite feed unit cover |
Also Published As
Publication number | Publication date |
---|---|
AU2190899A (en) | 1999-08-09 |
NO306316B1 (en) | 1999-10-18 |
NO980297L (en) | 1999-07-26 |
EP1051772A1 (en) | 2000-11-15 |
NO980297D0 (en) | 1998-01-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6072440A (en) | Satellite receiving dish feed horn or LNB cover | |
US8094084B2 (en) | Omnidirectional antenna for indoor and outdoor use | |
EP0952674A3 (en) | Reception control system for automobiles | |
EP0862239A4 (en) | Multiple frequency antenna | |
US4710778A (en) | Satellite earth station | |
JP4774565B2 (en) | Antenna device | |
KR930007738Y1 (en) | Receiving antenna for microwave | |
MY113841A (en) | Mechanism for mounting a receiving/transmitting horn in a satellite dish | |
EP1051772A1 (en) | Cover for parabolic devices | |
WO1995034988A3 (en) | Miniature cameras | |
US20030076270A1 (en) | On-vehicle antenna | |
CA2292423A1 (en) | Frequency converter arrangement for parabolic antennae | |
US4739337A (en) | Mobile mechanically steerable satellite tracking antenna | |
JPS6219083B2 (en) | ||
JP3500524B2 (en) | Mobile satellite communication antenna | |
JP3085581B2 (en) | Glass antenna for vehicles | |
US6078298A (en) | Di-pole wide bandwidth antenna | |
JPH10107542A (en) | Antenna system | |
JPH0298202A (en) | Antenna for automobile | |
EP0349499A3 (en) | Television antenna for interiors | |
JPH11243309A (en) | Roof antenna for vehicle | |
KR100413217B1 (en) | Antenna direction control apparatus for satellite signal reception system | |
JP4510868B2 (en) | Parabolic antenna primary radiator, low noise block down converter and satellite receiving antenna device | |
JPH10178310A (en) | Antenna supporting angle varying mechanism and bar antenna system for vehicle | |
KR200242210Y1 (en) | Antenna direction control apparatus for satellite signal reception system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
NENP | Non-entry into the national phase |
Ref country code: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1999902005 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1999902005 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
WWR | Wipo information: refused in national office |
Ref document number: 1999902005 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1999902005 Country of ref document: EP |