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GB773996A - Improvements relating to aerials - Google Patents

Improvements relating to aerials

Info

Publication number
GB773996A
GB773996A GB17890/54A GB1789054A GB773996A GB 773996 A GB773996 A GB 773996A GB 17890/54 A GB17890/54 A GB 17890/54A GB 1789054 A GB1789054 A GB 1789054A GB 773996 A GB773996 A GB 773996A
Authority
GB
United Kingdom
Prior art keywords
dipole
group
elements
spreader
june
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
GB17890/54A
Inventor
Edward Cecil Cork
Frederick John Henry Charman
Arthur William Henry Carter
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries 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
Priority to DENDAT957855D priority Critical patent/DE957855C/en
Application filed by EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB17890/54A priority patent/GB773996A/en
Priority to US515173A priority patent/US2887682A/en
Priority to FR1141413D priority patent/FR1141413A/en
Publication of GB773996A publication Critical patent/GB773996A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
    • H01Q5/48—Combinations of two or more dipole type antennas

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Aerials With Secondary Devices (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)

Abstract

773,996. Friction grip fastenings. ELECTRIC & MUSICAL INDUSTRIES, Ltd. June 6, 1955 [June 18, 1954; Dec. 8, 1954], Nos. 17890/54 and 35498/54. Class 44. [Also in Group XL (c)] To support two aerial elements 49 and 50 upon the rod or tubular elements of a dipole designed for operation at a lower frequency, metal spreaders are fixed to the dipole and support the ends of the higher frequency aerial elements at their outer ends. The spreaders comprise U-section spars having holes 44, and 45 in the centres of the U-section sides through which a dipole member 46 can pass when the normally slightly divergent arms of the U are sprung parallel. When the spreader has been threaded on to the member 46 the arms are released and spring outwards to grip it. A locking stud 47 provides an additional means of fixing. Key-hole slots 48 in the ends of one side of the spreader receive plugs of polyvinylchloride and hold them captive and the aerial elements 49 and 50 are supported by these plugs. Specifications 438,506, 523,060, [both in Group XL], and 628,986, [Group XL (c)], are referred to.
GB17890/54A 1954-06-18 1954-06-18 Improvements relating to aerials Expired GB773996A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DENDAT957855D DE957855C (en) 1954-06-18 Antenna arrangement for at least two preferably non-adjacent frequency bands
GB17890/54A GB773996A (en) 1954-06-18 1954-06-18 Improvements relating to aerials
US515173A US2887682A (en) 1954-06-18 1955-06-13 Aerials
FR1141413D FR1141413A (en) 1954-06-18 1955-06-17 Antenna improvements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB17890/54A GB773996A (en) 1954-06-18 1954-06-18 Improvements relating to aerials

Publications (1)

Publication Number Publication Date
GB773996A true GB773996A (en) 1957-05-01

Family

ID=10103027

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17890/54A Expired GB773996A (en) 1954-06-18 1954-06-18 Improvements relating to aerials

Country Status (4)

Country Link
US (1) US2887682A (en)
DE (1) DE957855C (en)
FR (1) FR1141413A (en)
GB (1) GB773996A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3078462A (en) * 1958-07-18 1963-02-19 Julius Herman One-turn loop antenna
US4028707A (en) * 1974-01-30 1977-06-07 The Ohio State University Antenna for underground pipe detector
JPS5979603A (en) * 1982-10-28 1984-05-08 Sony Corp Antenna
US4530455A (en) * 1983-08-11 1985-07-23 Senco Products, Inc. Piston and driver

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB628986A (en) * 1946-10-01 1949-09-08 Edward Cecil Cork Improvements in or relating to aerials
BE489963A (en) * 1948-07-03 1900-01-01
US2619596A (en) * 1948-11-12 1952-11-25 Kolster Muriel Multiband antenna system
US2640933A (en) * 1950-12-12 1953-06-02 Zenith Radio Corp Dual range antenna
US2632107A (en) * 1952-10-23 1953-03-17 True Tronics Inc Television antenna

Also Published As

Publication number Publication date
FR1141413A (en) 1957-09-02
DE957855C (en) 1957-01-17
US2887682A (en) 1959-05-19

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