GB869783A - Improvements in or relating to polarisation screens and filters for radio waves - Google Patents

Improvements in or relating to polarisation screens and filters for radio waves

Info

Publication number
GB869783A
GB869783A GB1287659A GB1287659A GB869783A GB 869783 A GB869783 A GB 869783A GB 1287659 A GB1287659 A GB 1287659A GB 1287659 A GB1287659 A GB 1287659A GB 869783 A GB869783 A GB 869783A
Authority
GB
United Kingdom
Prior art keywords
polarisation
screens
filters
relating
conductors
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
Application number
GB1287659A
Inventor
Mieczyslaw Wielobob
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co Ltd
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
Application filed by Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Priority to GB1287659A priority Critical patent/GB869783A/en
Publication of GB869783A publication Critical patent/GB869783A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/02—Refracting or diffracting devices, e.g. lens, prism
    • H01Q15/12—Refracting or diffracting devices, e.g. lens, prism functioning also as polarisation filter

Landscapes

  • Aerials With Secondary Devices (AREA)

Abstract

869,783. Aerials. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. Oct. 1, 1959 [April 15, 1959], No. 12876/59. Drawings to Specification. Class 40(7). A polarization screen comprises a plurality of unconnected resonant conductors arranged to re-radiate a field substantially equal to and 180 degrees out of phase with the field of undesired polarization running in the direction of the length of the conductors. The conductors are electrically #/2 long and spaced from one another by n #/2 and from the aperture of an aerial system by m #/4 where n is any integer and m is an odd integer. The aerial system described is a slotted waveguide and reflector or a slotted tower. Specification 827,083 is referred to.
GB1287659A 1959-04-15 1959-04-15 Improvements in or relating to polarisation screens and filters for radio waves Expired GB869783A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1287659A GB869783A (en) 1959-04-15 1959-04-15 Improvements in or relating to polarisation screens and filters for radio waves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1287659A GB869783A (en) 1959-04-15 1959-04-15 Improvements in or relating to polarisation screens and filters for radio waves

Publications (1)

Publication Number Publication Date
GB869783A true GB869783A (en) 1961-06-07

Family

ID=10012766

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1287659A Expired GB869783A (en) 1959-04-15 1959-04-15 Improvements in or relating to polarisation screens and filters for radio waves

Country Status (1)

Country Link
GB (1) GB869783A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132022A (en) * 1982-05-21 1984-06-27 Decca Ltd Radio frequency antenna and radio direction finding apparatus incorporating such antenna

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132022A (en) * 1982-05-21 1984-06-27 Decca Ltd Radio frequency antenna and radio direction finding apparatus incorporating such antenna

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