GB781419A - Antenna structure - Google Patents

Antenna structure

Info

Publication number
GB781419A
GB781419A GB16252/56A GB1625256A GB781419A GB 781419 A GB781419 A GB 781419A GB 16252/56 A GB16252/56 A GB 16252/56A GB 1625256 A GB1625256 A GB 1625256A GB 781419 A GB781419 A GB 781419A
Authority
GB
United Kingdom
Prior art keywords
dipole
helices
drive mechanism
reflector
addition
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
GB16252/56A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB781419A publication Critical patent/GB781419A/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
    • 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
    • H01Q3/12—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems
    • 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
    • H01Q3/12—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems
    • H01Q3/14—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems for varying the relative position of primary active element and a refracting or diffracting device

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Aerials With Secondary Devices (AREA)
  • Details Of Aerials (AREA)
  • Constitution Of High-Frequency Heating (AREA)

Abstract

781,419. Aerials; radio direction-finding. STANDARD TELEPHONES & CABLES, Ltd. May 25,1956 [May 26, 1955], No. 16252/56. Addition to 772,120. Class 40 (7). The aerial arrangement of the parent Specification is modified to reduce the errors arising due to the proximity of the lower half of the dipole and the lower parts of the conductive strips to the considerable metallic mass of the drive means for the cylinder supporting the parasitic elements. In accordance with the present invention the reflector strips 2 are of helical form and tuned to resonance and thus do not closely approach the drive mechanism. In addition the lower part of the flat wide-band dipole may consist of a plurality of helices 7 arranged round the coaxial feeder and support 6. The use of helical members increases the spacing between the bottom of the dipole and the drive mechanism. The rest of the system may be constructed as described in the parent Specification and may include director elements 3 supported by the rotatable insulating cylinder carrying the reflector helices 2.
GB16252/56A 1955-05-26 1956-05-25 Antenna structure Expired GB781419A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US511244A US2805414A (en) 1955-05-26 1955-05-26 Antenna structure

Publications (1)

Publication Number Publication Date
GB781419A true GB781419A (en) 1957-08-21

Family

ID=24034062

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16252/56A Expired GB781419A (en) 1955-05-26 1956-05-25 Antenna structure

Country Status (4)

Country Link
US (1) US2805414A (en)
ES (1) ES227235A1 (en)
GB (1) GB781419A (en)
NL (2) NL99879C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3680131A (en) * 1970-11-16 1972-07-25 Bendix Corp Low profile antenna mounted on a watercraft
US4516097A (en) * 1982-08-03 1985-05-07 Ball Corporation Apparatus and method for coupling r.f. energy through a mechanically rotatable joint
SE512062C2 (en) * 1993-07-14 2000-01-17 Ericsson Ge Mobile Communicat Method and apparatus for improving the efficiency and bandwidth of an antenna on a portable equipment
RU2264005C1 (en) * 2004-06-17 2005-11-10 ЗАО "Интеграционная промышленная система" Method for exciting ferroelectric antenna and mechanical design of the latter

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2636986A (en) * 1953-04-28 Television antenna
FR764473A (en) * 1933-01-11 1934-05-22 Csf Improvements to high frequency transmitters
BE427490A (en) * 1937-04-15
BE434031A (en) * 1938-04-28
US2243523A (en) * 1938-06-06 1941-05-27 Paul H Davis Method of radio communication
DE864280C (en) * 1939-05-31 1953-01-22 Emi Ltd Arrangement for the artificial earthing of a high frequency device

Also Published As

Publication number Publication date
NL206130A (en)
NL99879C (en)
US2805414A (en) 1957-09-03
ES227235A1 (en) 1956-05-01

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