GB790589A - Improvements in or relating to antennae - Google Patents

Improvements in or relating to antennae

Info

Publication number
GB790589A
GB790589A GB1123456A GB1123456A GB790589A GB 790589 A GB790589 A GB 790589A GB 1123456 A GB1123456 A GB 1123456A GB 1123456 A GB1123456 A GB 1123456A GB 790589 A GB790589 A GB 790589A
Authority
GB
United Kingdom
Prior art keywords
counterpoise
aerial
shaped
helical
conical part
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
GB1123456A
Inventor
Lars Goeran Svennerus
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Priority to GB1123456A priority Critical patent/GB790589A/en
Priority to DET12095A priority patent/DE1046122B/en
Publication of GB790589A publication Critical patent/GB790589A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
    • H01Q11/08—Helical antennas

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

790,589. Aerials. TELEFONAKTIEBOLAGET L. M. ERICSSON. April 12, 1956, No. 11234/56. Class 40 (7). An axially radiating screw-shaped helical aerial 2 is provided with an electrical counterpoise shaped so as to reduce the energy radiated in the side lobes of the radiation pattern. As is shown in Fig. 2 the counterpoise comprises a metallic frusto-conical part 5 coaxial with the aerial element and extending from a plane metallic disc at the feeder end to an open mouth at its larger end. The aerial element extends beyond the counterpoise mouth. The conical part of the counterpoise is connected by means of the disc, which is perpendicular to the axis of the aerial, to the outer conductor 3 of the coaxial feeder. To obtain a narrow main lobe an array of helical antennµ may be arranged with their counterpoises formed in a single sheet of material with funnel-shaped depressions (Fig. 3, not shown).
GB1123456A 1956-04-12 1956-04-12 Improvements in or relating to antennae Expired GB790589A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1123456A GB790589A (en) 1956-04-12 1956-04-12 Improvements in or relating to antennae
DET12095A DE1046122B (en) 1956-04-12 1956-04-13 Axial radiating, helical spiral antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1123456A GB790589A (en) 1956-04-12 1956-04-12 Improvements in or relating to antennae

Publications (1)

Publication Number Publication Date
GB790589A true GB790589A (en) 1958-02-12

Family

ID=9982462

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1123456A Expired GB790589A (en) 1956-04-12 1956-04-12 Improvements in or relating to antennae

Country Status (1)

Country Link
GB (1) GB790589A (en)

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