EP0303001A3 - Horn antenna - Google Patents
Horn antenna Download PDFInfo
- Publication number
- EP0303001A3 EP0303001A3 EP19880107171 EP88107171A EP0303001A3 EP 0303001 A3 EP0303001 A3 EP 0303001A3 EP 19880107171 EP19880107171 EP 19880107171 EP 88107171 A EP88107171 A EP 88107171A EP 0303001 A3 EP0303001 A3 EP 0303001A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- horn
- mouth
- ring
- horn antenna
- polytetra
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/06—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/06—Waveguide mouths
- H01Q13/065—Waveguide mouths provided with a flange or a choke
Landscapes
- Waveguide Aerials (AREA)
- Aerials With Secondary Devices (AREA)
- Details Of Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The horn illuminator for reflector antennas with rectangular radia
tion pattern is provided with a ring (4) of electrically conductive
material coaxially placed before the horn mouth (3) a distance of λ/4
therefrom and in a plane parallel to that of said mouth (3). The elec
trically conductive ring (4) is supported by a cap of polytetra
fluoroethylene material acting as a protection therefor.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2178687U | 1987-06-11 | ||
IT2178687U IT210401Z2 (en) | 1987-06-11 | 1987-06-11 | HORN LIGHTING FOR REFLECTOR ANTENNAS WITH RECTANGULAR IRRADIATION DIAGRAM. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0303001A2 EP0303001A2 (en) | 1989-02-15 |
EP0303001A3 true EP0303001A3 (en) | 1990-09-05 |
Family
ID=11186825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19880107171 Withdrawn EP0303001A3 (en) | 1987-06-11 | 1988-05-04 | Horn antenna |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0303001A3 (en) |
IT (1) | IT210401Z2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2458663B (en) * | 2008-03-26 | 2012-11-21 | Thales Holdings Uk Plc | Radome |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3624655A (en) * | 1968-11-05 | 1971-11-30 | Kobusai Denkshin Denwa Kk | Horn antenna |
FR2097132A1 (en) * | 1970-07-02 | 1972-03-03 | Hollandse Signaalapparaten Bv | PROCESS FOR CLOSING THE MOUTH OF A WAVE GUIDE |
DE2607809A1 (en) * | 1976-02-26 | 1977-09-01 | Deutsche Bundespost | Low bunching microwave aerial - has transverse slot width and spacing from aperture chosen to ensure phase side lobes reversal |
-
1987
- 1987-06-11 IT IT2178687U patent/IT210401Z2/en active
-
1988
- 1988-05-04 EP EP19880107171 patent/EP0303001A3/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3624655A (en) * | 1968-11-05 | 1971-11-30 | Kobusai Denkshin Denwa Kk | Horn antenna |
FR2097132A1 (en) * | 1970-07-02 | 1972-03-03 | Hollandse Signaalapparaten Bv | PROCESS FOR CLOSING THE MOUTH OF A WAVE GUIDE |
DE2607809A1 (en) * | 1976-02-26 | 1977-09-01 | Deutsche Bundespost | Low bunching microwave aerial - has transverse slot width and spacing from aperture chosen to ensure phase side lobes reversal |
Also Published As
Publication number | Publication date |
---|---|
EP0303001A2 (en) | 1989-02-15 |
IT8721786V0 (en) | 1987-06-11 |
IT210401Z2 (en) | 1988-12-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH DE ES FR GB GR LI NL SE |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH DE ES FR GB GR LI NL SE |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19910306 |