GB1092409A - Improvements in or relating to vertically polarized antenna arrays - Google Patents

Improvements in or relating to vertically polarized antenna arrays

Info

Publication number
GB1092409A
GB1092409A GB4872265A GB4872265A GB1092409A GB 1092409 A GB1092409 A GB 1092409A GB 4872265 A GB4872265 A GB 4872265A GB 4872265 A GB4872265 A GB 4872265A GB 1092409 A GB1092409 A GB 1092409A
Authority
GB
United Kingdom
Prior art keywords
aerials
switch
coupler
aerial
plane
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
GB4872265A
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 Patentverwertungs GmbH
Original Assignee
Telefunken Patentverwertungs GmbH
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 Patentverwertungs GmbH filed Critical Telefunken Patentverwertungs GmbH
Publication of GB1092409A publication Critical patent/GB1092409A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/24—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
    • H01Q3/242—Circumferential scanning
    • 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
    • H01Q11/10—Logperiodic antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/20—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

1,092,409. Aerials. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. Nov. 16, 1965 [Nov. 17, 1964], No. 48722/65. Heading H4A. A vertically polarized aerial array comprises at least one pair 5, 6 of log-periodic aerials, each aerial having its radiating elements 7 contained substantially in a vertical plane. The aerials are disposed in V-formation, with their shortest element adjacent, the angle between them being such that the distance between corresponding elements of both aerials is 0.4# to 0.8#, where # = the resonance wavelength of those elements. The aerials are suspended from ropes 4 between the tops of a common short mast 3 and separate high masts 3. The radiating elements 7 are dipoles, each half of which is in the form of a narrow triangle. A common feeder 15 supplies both aerials through a broadband 3dB directional coupler 11 and a reversing switch 10. The coupler is of the four-port quarter- or three-quarter wavelength type, the input port being connected to the feeder 15, the output ports to the aerials 5, 6 via the reversing switch 10, and the fourth port to a load resistor 12 for absorbing any reflected energy. The lengths of the leads 16, 17 between the coupler and the switch are made equal as are the length of the leads 23, 24 between the switch and the aerials. There is a phase difference of 90 degrees between the two outputs from the coupler and, in consequence, the main lobe of the radiation pattern of the array is swivelled in azimuth from the plane of symmetry of the array (Fig. 5, not shown). The swivelling can be made to be to the other side of the said plane by operation of the reversing switch 10, and it is stated that the effective aperture of the aerial is thereby increased. In a modification, five pairs of arrays are arranged in a five-pointed star (Fig. 6, not shown), so that their radiation patterns, including swivelling, cover all azimuths. A selector switch (22) is provided whereby up to five transmitters may be operated simultaneously.
GB4872265A 1964-11-17 1965-11-16 Improvements in or relating to vertically polarized antenna arrays Expired GB1092409A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET0027430 1964-11-17

Publications (1)

Publication Number Publication Date
GB1092409A true GB1092409A (en) 1967-11-22

Family

ID=7553485

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4872265A Expired GB1092409A (en) 1964-11-17 1965-11-16 Improvements in or relating to vertically polarized antenna arrays

Country Status (2)

Country Link
DE (1) DE1251823B (en)
GB (1) GB1092409A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2032002A1 (en) * 1970-06-29 1972-01-20 Licentia Gmbh Antenna system
CN115296001A (en) * 2022-08-03 2022-11-04 北京鑫昇科技有限公司 Large broadband micro distribution system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2032002A1 (en) * 1970-06-29 1972-01-20 Licentia Gmbh Antenna system
CN115296001A (en) * 2022-08-03 2022-11-04 北京鑫昇科技有限公司 Large broadband micro distribution system

Also Published As

Publication number Publication date
DE1251823B (en)

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