ATE70924T1 - REFLECTOR ANTENNA WITH A SELF-SUPPORTING FEEDER. - Google Patents

REFLECTOR ANTENNA WITH A SELF-SUPPORTING FEEDER.

Info

Publication number
ATE70924T1
ATE70924T1 AT87903452T AT87903452T ATE70924T1 AT E70924 T1 ATE70924 T1 AT E70924T1 AT 87903452 T AT87903452 T AT 87903452T AT 87903452 T AT87903452 T AT 87903452T AT E70924 T1 ATE70924 T1 AT E70924T1
Authority
AT
Austria
Prior art keywords
tube
subreflector
intermediate space
aperture
self
Prior art date
Application number
AT87903452T
Other languages
German (de)
Inventor
Per-Simon Kildal
Original Assignee
Stiftelsen Ind Og Tek Forsk
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26647959&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE70924(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from NO862192A external-priority patent/NO862192D0/en
Application filed by Stiftelsen Ind Og Tek Forsk filed Critical Stiftelsen Ind Og Tek Forsk
Application granted granted Critical
Publication of ATE70924T1 publication Critical patent/ATE70924T1/en

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
    • H01Q19/10—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 reflecting surfaces
    • H01Q19/12—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 reflecting surfaces wherein the surfaces are concave
    • H01Q19/13—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 reflecting surfaces wherein the surfaces are concave the primary radiating source being a single radiating element, e.g. a dipole, a slot, a waveguide termination
    • H01Q19/134—Rear-feeds; Splash plate feeds

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Road Signs Or Road Markings (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Waveguide Aerials (AREA)

Abstract

A reflector antenna with a dish-shaped main reflector (10), and a self-supporting feed (11) for the transmission or reception of polarized electromagnetic waves. The feed (11) consists of a tube (12) which is attached to the middle of the main reflector (10) and is terminated by a subreflector (13) so that an intermediate space (14) is formed between the subreflector and the end of the tube. The part of the tube that is nearest the intermediate space (14) contains a cylindrical waveguide (15), or is the waveguide itself, and has an approximately circular or quadratic cross-section. Externally, the intermediate space (14) is bounded by a circular, cylindrical surface (16) with the same diameter as the outer diameter of the tube (12) this being called the aperture surface. The surface of the subreflector (13) which is located just outside the surface of the aperture (16) has circular corrugations (17), or other means of creating a reactive, anisotropic surface impedance, to ensure that the electromagnetic waves are propagated along the surface disregardless of whether the electrical field is tangential to the surface or is normally on it. The part of the subreflector (13) that is located within the aperture surface (16) is shaped as a central conical element (18) with reflecting characteristics and which is inclined towards the tube (12).
AT87903452T 1986-06-03 1987-06-03 REFLECTOR ANTENNA WITH A SELF-SUPPORTING FEEDER. ATE70924T1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NO862192A NO862192D0 (en) 1986-06-03 1986-06-03 REFLECTOR ANTENNA WITH SELF-SUSTAINABLE MEASUREMENT ELEMENT.
NO864563A NO864563L (en) 1986-06-03 1986-11-17 REFLECTOR ANTENNA WITH SELF-SUSTAINABLE MEASUREMENT ELEMENT.
EP87903452A EP0268635B1 (en) 1986-06-03 1987-06-03 Reflector antenna with a self-supported feed
PCT/NO1987/000044 WO1987007771A1 (en) 1986-06-03 1987-06-03 Reflector antenna with a self-supported feed

Publications (1)

Publication Number Publication Date
ATE70924T1 true ATE70924T1 (en) 1992-01-15

Family

ID=26647959

Family Applications (1)

Application Number Title Priority Date Filing Date
AT87903452T ATE70924T1 (en) 1986-06-03 1987-06-03 REFLECTOR ANTENNA WITH A SELF-SUPPORTING FEEDER.

Country Status (6)

Country Link
EP (1) EP0268635B1 (en)
JP (1) JPH01500790A (en)
AT (1) ATE70924T1 (en)
DE (1) DE3775528D1 (en)
NO (2) NO864563L (en)
WO (1) WO1987007771A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4002913A1 (en) * 1990-02-01 1991-08-08 Ant Nachrichtentech DOUBLE REFLECTOR ANTENNA
GB9007976D0 (en) * 1990-04-09 1990-06-06 Marconi Electronic Devices Antenna arrangement
WO1999010950A2 (en) * 1997-08-21 1999-03-04 Kildal Antenna Consulting Ab Improved reflector antenna with a self-supported feed
SE515493C2 (en) 1999-12-28 2001-08-13 Ericsson Telefon Ab L M Sub reflector, feeder and reflector antenna including such a sub reflector.
JPWO2006064536A1 (en) * 2004-12-13 2008-06-12 三菱電機株式会社 Antenna device
JP6051904B2 (en) * 2013-02-06 2016-12-27 三菱電機株式会社 Primary radiator for antenna device and antenna device
US9246233B2 (en) 2013-03-01 2016-01-26 Optim Microwave, Inc. Compact low sidelobe antenna and feed network
JP6198647B2 (en) * 2014-03-19 2017-09-20 三菱電機株式会社 Antenna device
CN104979622A (en) * 2014-04-08 2015-10-14 蒋云阳 Special-shaped cone cylinder broadband antenna
WO2018120197A1 (en) * 2016-12-30 2018-07-05 华为技术有限公司 Antenna and communication device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE466752A (en) * 1945-07-21
NL272285A (en) * 1960-12-19
DE2240893A1 (en) * 1972-08-19 1974-03-07 Gruenzweig & Hartmann MIRROR ANTENNA, IN PARTICULAR FOR THE 12 GHZ BAND

Also Published As

Publication number Publication date
NO163928B (en) 1990-04-30
NO864563L (en) 1987-12-04
JPH01500790A (en) 1989-03-16
EP0268635B1 (en) 1991-12-27
NO864563D0 (en) 1986-11-17
EP0268635A1 (en) 1988-06-01
WO1987007771A1 (en) 1987-12-17
NO880464L (en) 1988-02-03
NO880464D0 (en) 1988-02-03
DE3775528D1 (en) 1992-02-06
NO163928C (en) 1990-08-08

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee