GB682115A - Dielectric antennae arrays - Google Patents

Dielectric antennae arrays

Info

Publication number
GB682115A
GB682115A GB2048850A GB2048850A GB682115A GB 682115 A GB682115 A GB 682115A GB 2048850 A GB2048850 A GB 2048850A GB 2048850 A GB2048850 A GB 2048850A GB 682115 A GB682115 A GB 682115A
Authority
GB
United Kingdom
Prior art keywords
rods
dielectric
guide
segments
rod
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
GB2048850A
Original Assignee
Maurice Bouix
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 FR682115X priority Critical
Application filed by Maurice Bouix filed Critical Maurice Bouix
Publication of GB682115A publication Critical patent/GB682115A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/20Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/24Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave constituted by a dielectric or ferromagnetic rod or pipe

Abstract

682,115. Aerials. BOUIX, M. Aug. 18, 1950 [Aug. 19, 1949; Aug. 17, 1950], No. 20488/50. Class 40 (vii). In an aerial array comprising a plurality of dielectric rods coupled to a rectangular waveguide at intervals along its length by means of apertures spaced along the length of one face of the guide, the spacing of the apertures is less than a wavelength in the wave-guide, but is so related thereto that a given number of rods forming a group occupy an integral number of wavelengths of the guide, while the dielectric rods are all coupled to their respective apertures through delay means which introduce such different delays for the different members of a group that all the rods radiate cophasally. As shown in Fig. 1, a group of three rods occupies two guide wavelengths. The dielectric rods are mounted within cylindrical segments 2, 12, 22 ... which also incorporate the delay means. For the first rod of each group 1, 31 ... the delay is introduced solely by the material of the dielectric rod within the segments 2, 32 ... ; for the other rods, additional portions of dielectric material 8, 9 are inserted in the segments to effect the necessary delays. The portions 8 inserted in the coupling for the second rod of each group is also arranged to behave as a halfwave transformer, while the portions 9 inserted in the coupling for the third rod of each group is arranged as a three half-wave transformer. Matching screws 5, 15 ... are arranged opposite their respective apertures 4, 14 .... Fig. 4 shows an array wherein a group comprises two dielectric rods, the spacing between the rods being equal to one-half the guide wavelength. In order to effect cophasal energization, alternate circular segments 29 and 39 are constructed with different diameters so that the phase velocities of waves in alternate segments differ so as to effect the necessary phase correction. The energy supplied to the array may be uniformly distributed to all the radiating elements; alternatively, the energization may be " tapered."
GB2048850A 1949-08-19 1950-08-18 Dielectric antennae arrays Expired GB682115A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR682115X 1949-08-19

Publications (1)

Publication Number Publication Date
GB682115A true GB682115A (en) 1952-11-05

Family

ID=9023160

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2048850A Expired GB682115A (en) 1949-08-19 1950-08-18 Dielectric antennae arrays

Country Status (3)

Country Link
US (1) US2624002A (en)
FR (1) FR60492E (en)
GB (1) GB682115A (en)

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