GB835976A - Improvements in or relating to surface wave transmission lines - Google Patents

Improvements in or relating to surface wave transmission lines

Info

Publication number
GB835976A
GB835976A GB3325/58A GB332558A GB835976A GB 835976 A GB835976 A GB 835976A GB 3325/58 A GB3325/58 A GB 3325/58A GB 332558 A GB332558 A GB 332558A GB 835976 A GB835976 A GB 835976A
Authority
GB
United Kingdom
Prior art keywords
layer
wave transmission
polythene
surface wave
completely cover
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
GB3325/58A
Inventor
Bernard Pierre Chiron
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.)
Lignes Telegraphiques et Telephoniques LTT SA
Original Assignee
Lignes Telegraphiques et Telephoniques LTT SA
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 Lignes Telegraphiques et Telephoniques LTT SA filed Critical Lignes Telegraphiques et Telephoniques LTT SA
Publication of GB835976A publication Critical patent/GB835976A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01PWAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P3/00Waveguides; Transmission lines of the waveguide type
    • H01P3/10Wire waveguides, i.e. with a single solid longitudinal conductor

Landscapes

  • Laminated Bodies (AREA)

Abstract

835,976. Surface wave lines. LIGNES TELEGRAPHIQUES ET TELEPHONIQUES. Jan. 31, 1958 [Feb. 8, 1957], No. 3325/58. Class 40 (8). A surface-wave transmission line comprises a central conductive core 1 carrying an inner thin layer 2 of material and an outer thick layer of a low-loss material having a permittivity low compared with that of the first layer. The outer layer may completely cover the inner layer or may take the form of discs 5, Fig. 4, or two helical windings 7, 8, Fig. 6. The inner layer may be made of polythene and the outer layer of polystyrene sponge. Where the outer layer does not completely cover the inner layer, the line may be surrounded by an impervious covering 4 consisting of strips of tetrafluoroethylene on which is extruded a thin layer of polythene. It is stated that the outer radius of the second layer is preferably greater than 2r0/3, where r0 is the radial distance beyond which the energy in the wave decreases exponentially as a function of r.
GB3325/58A 1957-02-08 1958-01-31 Improvements in or relating to surface wave transmission lines Expired GB835976A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1168564T 1957-02-08

Publications (1)

Publication Number Publication Date
GB835976A true GB835976A (en) 1960-06-01

Family

ID=9656030

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3325/58A Expired GB835976A (en) 1957-02-08 1958-01-31 Improvements in or relating to surface wave transmission lines

Country Status (2)

Country Link
FR (1) FR1168564A (en)
GB (1) GB835976A (en)

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