GB446619A - Improvements in or relating to wireless directional aerial systems - Google Patents

Improvements in or relating to wireless directional aerial systems

Info

Publication number
GB446619A
GB446619A GB24595/35A GB2459535A GB446619A GB 446619 A GB446619 A GB 446619A GB 24595/35 A GB24595/35 A GB 24595/35A GB 2459535 A GB2459535 A GB 2459535A GB 446619 A GB446619 A GB 446619A
Authority
GB
United Kingdom
Prior art keywords
sept
mirror
bank
relating
dipoles
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
GB24595/35A
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Publication of GB446619A publication Critical patent/GB446619A/en
Expired legal-status Critical Current

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
    • H01Q19/17—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 comprising two or more radiating elements

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

446,619. Directive wireless signalling. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Sept. 3, 1935, No. 24595. Convention date, Sept. 3, 1934. [Class 40 (v)] The usual dipole aerial used in combination with a curved reflector to concentrate shortwave radiation is replaced by an aerial array 4, the directional angle w of which is equal to the angle subtended by the mirror 1. This compensates for the fact that the focus of the mirror is not sharply defined but occupies the area shown shaded. The bank of dipoles 4 may be backed by a similar bank of reflectors 5. Crossed dipoles are used to offset fluctuations in the polarization of the received waves. The aerials may be " stepped " or arranged on a curved surface to compensate for phase-differences.
GB24595/35A 1934-09-03 1935-09-03 Improvements in or relating to wireless directional aerial systems Expired GB446619A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE446619X 1934-09-03

Publications (1)

Publication Number Publication Date
GB446619A true GB446619A (en) 1936-05-04

Family

ID=6537906

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24595/35A Expired GB446619A (en) 1934-09-03 1935-09-03 Improvements in or relating to wireless directional aerial systems

Country Status (3)

Country Link
US (1) US2112282A (en)
FR (1) FR794533A (en)
GB (1) GB446619A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2506617A (en) * 1938-06-23 1950-05-09 Us Sec War Method of and apparatus for locating and tracking a distant body
FR971483A (en) * 1940-06-15 1951-01-17 Csf Improvements to radio wave radiators
US2541806A (en) * 1943-05-04 1951-02-13 Gen Electric Beam antenna system
US2436408A (en) * 1943-05-27 1948-02-24 Sperry Corp Radio wave reflecting transducer system
US2542844A (en) * 1943-08-14 1951-02-20 Bell Telephone Labor Inc Microwave directive antenna
US2577463A (en) * 1944-05-17 1951-12-04 Rca Corp Device for transmission and reception of very short electrical waves
US2682048A (en) * 1945-04-07 1954-06-22 Us Sec War Radio object detection apparatus
US2480143A (en) * 1946-09-11 1949-08-30 Standard Telephones Cables Ltd Directive antenna system
US2982962A (en) * 1953-08-19 1961-05-02 Gen Railway Signal Co Antenna system
US2913723A (en) * 1956-01-23 1959-11-17 Csf Variable pattern radar aerial

Also Published As

Publication number Publication date
FR794533A (en) 1936-02-19
US2112282A (en) 1938-03-29

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