GB534909A - Improvements in or relating to antenna - Google Patents

Improvements in or relating to antenna

Info

Publication number
GB534909A
GB534909A GB30921/39A GB3092139A GB534909A GB 534909 A GB534909 A GB 534909A GB 30921/39 A GB30921/39 A GB 30921/39A GB 3092139 A GB3092139 A GB 3092139A GB 534909 A GB534909 A GB 534909A
Authority
GB
United Kingdom
Prior art keywords
wave
length
aerials
nov
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
GB30921/39A
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co 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 Marconis Wireless Telegraph Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Publication of GB534909A publication Critical patent/GB534909A/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
    • H01Q21/061—Two dimensional planar arrays
    • H01Q21/062—Two dimensional planar arrays using dipole aerials
    • 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
    • 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
    • H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength

Abstract

534,909. Aerials. MARCONI'S WIRELESS TELEGRAPH CO., Ltd: Nov. 27, 1939, No. 30921. Convention date, Nov. 26, 1938. [Class 40 (v)] A short-wave aerial, particularly suitable for receiving broadcast television signals, comprises a pair of L-shaped wires 1, 3 and 2, 4 arranged horizontally. Each wire has an overall length of half the shortest working wave-length, and each is connected to one side of a transmission line TL. The figure-of-eight response of the two quarterwave dipoles 1, 2 when combined with the out-of-phase signals from the two quarter-wave dipoles 3, 4 produces a substantially-circular or non-directional response. A second pair of aerials, dimensioned for a shorter wave-length, may be connected in parallel with the first, in order to enable the aerial system to cover a wider range of frequencies.
GB30921/39A 1938-11-26 1939-11-27 Improvements in or relating to antenna Expired GB534909A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US534909XA 1938-11-26 1938-11-26

Publications (1)

Publication Number Publication Date
GB534909A true GB534909A (en) 1941-03-21

Family

ID=21984640

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30921/39A Expired GB534909A (en) 1938-11-26 1939-11-27 Improvements in or relating to antenna

Country Status (1)

Country Link
GB (1) GB534909A (en)

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