GB874784A - Aerial systems - Google Patents

Aerial systems

Info

Publication number
GB874784A
GB874784A GB235160A GB235160A GB874784A GB 874784 A GB874784 A GB 874784A GB 235160 A GB235160 A GB 235160A GB 235160 A GB235160 A GB 235160A GB 874784 A GB874784 A GB 874784A
Authority
GB
United Kingdom
Prior art keywords
dipoles
dipole
shorter
pairs
folded
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
GB235160A
Inventor
Cyril Frank Whitbread
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.)
Belling and Lee Ltd
Original Assignee
Belling and Lee 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
Application filed by Belling and Lee Ltd filed Critical Belling and Lee Ltd
Priority to GB235160A priority Critical patent/GB874784A/en
Publication of GB874784A publication Critical patent/GB874784A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Aerials With Secondary Devices (AREA)

Abstract

874,784. Aerials. BELLING & LEE Ltd. Jan. 22, 1960, No. 2351/60. Class 40(7) A wide-band aerial system comprises at least two folded dipoles, the dipoles being of different lengths and joined by a transmission line which has a lower characteristic impedance than that of either of the dipoles at its feed point. In one embodiment two dipole pairs 1, 2 and 3, 4 are used. The spacing between the pairs of dipoles is approximately a half wave-length at the mean operating frequency and dipoles 1 and 3 are shorter than dipoles 2 and 4. Reflectors 5, 6 may be provided. In a second embodiment, Fig. 2 (not shown), a third folded dipole is added to each pair, the additional dipole being shorter than the dipoles 1, 3 and mounted such that the dipoles of each group are of decreasing length in the direction of maximum gain. Specification 758,794 is referred to.
GB235160A 1960-01-22 1960-01-22 Aerial systems Expired GB874784A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB235160A GB874784A (en) 1960-01-22 1960-01-22 Aerial systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB235160A GB874784A (en) 1960-01-22 1960-01-22 Aerial systems

Publications (1)

Publication Number Publication Date
GB874784A true GB874784A (en) 1961-08-10

Family

ID=9738036

Family Applications (1)

Application Number Title Priority Date Filing Date
GB235160A Expired GB874784A (en) 1960-01-22 1960-01-22 Aerial systems

Country Status (1)

Country Link
GB (1) GB874784A (en)

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