CA2219925A1 - Antenna element for two orthogonal polarizations - Google Patents

Antenna element for two orthogonal polarizations

Info

Publication number
CA2219925A1
CA2219925A1 CA002219925A CA2219925A CA2219925A1 CA 2219925 A1 CA2219925 A1 CA 2219925A1 CA 002219925 A CA002219925 A CA 002219925A CA 2219925 A CA2219925 A CA 2219925A CA 2219925 A1 CA2219925 A1 CA 2219925A1
Authority
CA
Canada
Prior art keywords
radiation
ports
antenna element
ground plane
disc
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.)
Granted
Application number
CA002219925A
Other languages
French (fr)
Other versions
CA2219925C (en
Inventor
Ulf Jostell
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.)
Beyond Gravity Sweden AB
Original Assignee
Individual
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
Priority claimed from SE9501669A external-priority patent/SE505473C2/en
Application filed by Individual filed Critical Individual
Publication of CA2219925A1 publication Critical patent/CA2219925A1/en
Application granted granted Critical
Publication of CA2219925C publication Critical patent/CA2219925C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Waveguide Aerials (AREA)

Abstract

An antenna element intended for transmission and reception of orthogonal polarisations having a good polarisation purity of electromagnetic radiation is described. It comprises a ground plane and at least one radiation disc connected to two ports for the supply of a desired electromagnetic radiation, preferably in the microwave range. The distance between the ground plane and the radiation disc is a fraction of the wavelength .lambda. of the radiation. The antenna element is in particular characterized in that the ports are located at an electric distance of 90° from each other and that a quarterwave transformer is added between the ground plane and the radiation disc that is shaped so that the transmission line impedance between the ports is reduced in order to make the ports radiationally independent of each other.
CA002219925A 1995-05-05 1996-04-29 Antenna element for two orthogonal polarizations Expired - Lifetime CA2219925C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9501669A SE505473C2 (en) 1995-05-05 1995-05-05 Antenna element for two orthogonal polarizations
SE9501669-7 1995-05-05
PCT/SE1996/000561 WO1996035240A1 (en) 1995-05-05 1996-04-29 Antenna element for two orthogonal polarizations

Publications (2)

Publication Number Publication Date
CA2219925A1 true CA2219925A1 (en) 1996-11-07
CA2219925C CA2219925C (en) 2006-03-14

Family

ID=36095749

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002219925A Expired - Lifetime CA2219925C (en) 1995-05-05 1996-04-29 Antenna element for two orthogonal polarizations

Country Status (1)

Country Link
CA (1) CA2219925C (en)

Also Published As

Publication number Publication date
CA2219925C (en) 2006-03-14

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20160429