US2381367A - Guide for the transmission of electric waves - Google Patents

Guide for the transmission of electric waves Download PDF

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Publication number
US2381367A
US2381367A US449371A US44937142A US2381367A US 2381367 A US2381367 A US 2381367A US 449371 A US449371 A US 449371A US 44937142 A US44937142 A US 44937142A US 2381367 A US2381367 A US 2381367A
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Prior art keywords
guide
transmission
electric waves
tube
parts
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Expired - Lifetime
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US449371A
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Quayle Joshua Creer
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British Insulated Cables Ltd
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British Insulated Cables Ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01PWAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P3/00Waveguides; Transmission lines of the waveguide type
    • H01P3/12Hollow waveguides
    • H01P3/14Hollow waveguides flexible
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S29/00Metal working
    • Y10S29/028Magnetic recording digest

Definitions

  • This invention is concerned with the manufacture of guides of tubular form and rectangular cross-section for the transmission of electromagnetic waves.
  • the object is to provide a form of tubular guide which shall have a substantial degree of flexibility suflicient to permit change of direction of the guide in gradual bends and twists.
  • the improved guide is made of flexible nonmetallic material in two parts (or more) so as to make a tube with two (or more) longitudinal joints and having the interior surface metallised allover.
  • the longitudinal division is necessary in order that effective metallisation of the interior surface may be carried out. It will generally be most convenient to make the tube from two members; thus giving a minimum number of Joints, but it may in some cases be advantageous to use more members.
  • the longitudinal joints 7 are made in such a way as to avoid producing any be done by cementing or by the use of pressure,
  • the wave guide is made up of two similar moulded shallow troughs l and 2, each provided with a pair of flanges 4 by which the two troughs are joined together -by cementing, so as to form a closed tube. Before the two troughs are assembled together, each of them is provided with a coating of metal 3 on the inner surface.
  • Figure 2 follows the same method of construction. There are here, again, two shallow troughs 5 and 6 joined together at their flanges I and metallised on their inner faces at 8. There is, however, the difierencethat the sides of the V trough are not straight but are waved as shown at 9. This difference gives greater flexibility for bending the tubular guide in one plane.
  • the material will be chosen having regard to a number of practical considerations, noting that its function is mechanical and not electrical. It has to support the metallisation while permitting sumeient bending and twisting for the gradual change of direction required.
  • materials include rubber, both in the vulcanised and in the unvulcanised form; the latter being, for instance, a rubber-wax composition. They also include artificial rubber, such as neoprene, and rubber-polystyrene mixtures or copolymers. Many of the so-called artificial resins are also suitable, for instance, polyvinyl resins and the normally solid polymers of ethylene.
  • a number of different methods of metallisation are available. The methods used must give a sufliciently complete covering with a smooth surface. Metal spraying or painting with appropriate metal paint may be employed. Other processes, such as sputtering and evaporation in vacuo may also be used.
  • Tubular guides of the forms described and illustrated have, in a generally non-metallic construction, the property that they provide sulficient rigidity for efficient transmission of the electric waves and sufiicient flexibility to permit the guide to be bent and twisted to suit the positions in which it is required to be used.
  • it is important to maintain substantially invariable the longer dimension of the tube. This condition is complied with by the present guide form which is stifi enough to resist any appreciable change of the longer dimension of the rectangle; at the same time, particularly in the form shown in Figure -2,it permits of bending in one plane and twisting about the axis ofthe tube.
  • a rectangular tubular wave guide consisting ofat least two parts of flexible non-metallic material having their interior surfaces metallised, said parts being connected together by longitudinal joints characterized by the absence of any appreciable break in the metallised surface of the rectangular cross-section.
  • a rectangular tubular wave guide consisting of two parts of flexible non-metallic material, one part being a rectangular trough and both parts having the interior surfaces metallised, said parts being connected together at their edges by joints Ch ter y the absence of any appreciable added flexibility in one plane, the two troughs be- 1113 Joined together at their edges by joints characterized by the absence of any appreciable break in the metaliised surface of the rectangular cross- 5 section.

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  • Insulated Conductors (AREA)
  • Laminated Bodies (AREA)

Description

Aug. 7, 1945. J. c. QUAYLE 2,381,367
GUIDES FOR THE TRANSMISSION OF ELECTRIC WAVES Filed July 1, 1942 Patented Aug. 7, 1945 GUIDE FOR THE TRANSMISSION OF ELECTR IC WAVES Joshua Greer Quayle, Helsby, England, assignor to British Insulated Cables Limited, Prescot, Lancashire, England, a company of Great Britain Application July 1, 1942, Serial No. 449,371 In Great Britain July 10, 1941 3 Claims.
This invention is concerned with the manufacture of guides of tubular form and rectangular cross-section for the transmission of electromagnetic waves. The object is to provide a form of tubular guide which shall have a substantial degree of flexibility suflicient to permit change of direction of the guide in gradual bends and twists.
The improved guide is made of flexible nonmetallic material in two parts (or more) so as to make a tube with two (or more) longitudinal joints and having the interior surface metallised allover. The longitudinal division is necessary in order that effective metallisation of the interior surface may be carried out. It will generally be most convenient to make the tube from two members; thus giving a minimum number of Joints, but it may in some cases be advantageous to use more members. The longitudinal joints 7 are made in such a way as to avoid producing any be done by cementing or by the use of pressure,
with or without heat, or by the application of external clamps or otherwise.
The invention is illustrated in two forms by the accompanying drawing, which shows perspective views.
In Figure 1 the wave guide is made up of two similar moulded shallow troughs l and 2, each provided with a pair of flanges 4 by which the two troughs are joined together -by cementing, so as to form a closed tube. Before the two troughs are assembled together, each of them is provided with a coating of metal 3 on the inner surface.
Figure 2 follows the same method of construction. There are here, again, two shallow troughs 5 and 6 joined together at their flanges I and metallised on their inner faces at 8. There is, however, the difierencethat the sides of the V trough are not straight but are waved as shown at 9. This difference gives greater flexibility for bending the tubular guide in one plane.
The material will be chosen having regard to a number of practical considerations, noting that its function is mechanical and not electrical. It has to support the metallisation while permitting sumeient bending and twisting for the gradual change of direction required. A large number of materials are available; some of them will now be mentioned. These include rubber, both in the vulcanised and in the unvulcanised form; the latter being, for instance, a rubber-wax composition. They also include artificial rubber, such as neoprene, and rubber-polystyrene mixtures or copolymers. Many of the so-called artificial resins are also suitable, for instance, polyvinyl resins and the normally solid polymers of ethylene.
A number of different methods of metallisation are available. The methods used must give a sufliciently complete covering with a smooth surface. Metal spraying or painting with appropriate metal paint may be employed. Other processes, such as sputtering and evaporation in vacuo may also be used.
Tubular guides of the forms described and illustrated have, in a generally non-metallic construction, the property that they provide sulficient rigidity for efficient transmission of the electric waves and sufiicient flexibility to permit the guide to be bent and twisted to suit the positions in which it is required to be used. In using such guides for electric waves of the lowest frequency which can be transmitted through such rectangular tubes, it is important to maintain substantially invariable the longer dimension of the tube. This condition is complied with by the present guide form which is stifi enough to resist any appreciable change of the longer dimension of the rectangle; at the same time, particularly in the form shown in Figure -2,it permits of bending in one plane and twisting about the axis ofthe tube. These two possibilities, permit it to accommodate itself to all ordinary forms of run of the guide. Variation in the smaller transverse dimension of the tube which may occur in bonding of the tube, particularly in the case of Figure 2, is permissible within limits, since this dimension can be varied considerably without producing corresponding variation in the attenuation in their transmission What'I claim as my invention 15'.
l. A rectangular tubular wave guide consisting ofat least two parts of flexible non-metallic material having their interior surfaces metallised, said parts being connected together by longitudinal joints characterized by the absence of any appreciable break in the metallised surface of the rectangular cross-section.
2. A rectangular tubular wave guide consisting of two parts of flexible non-metallic material, one part being a rectangular trough and both parts having the interior surfaces metallised, said parts being connected together at their edges by joints Ch ter y the absence of any appreciable added flexibility in one plane, the two troughs be- 1113 Joined together at their edges by joints characterized by the absence of any appreciable break in the metaliised surface of the rectangular cross- 5 section.
JOSHUA CREER QUAYLE.
US449371A 1941-07-10 1942-07-01 Guide for the transmission of electric waves Expired - Lifetime US2381367A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8695/41A GB555195A (en) 1941-07-10 1941-07-10 Improvements in guides for the transmission of electric waves

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US2381367A true US2381367A (en) 1945-08-07

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Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2479053A (en) * 1945-06-22 1949-08-16 Budd Co Copper-coated magnetic steel yoke for welding apparatus
US2511896A (en) * 1944-05-31 1950-06-20 Philco Corp Device for flexibly interconnecting wave guides
US2556187A (en) * 1949-07-08 1951-06-12 Airtron Inc Flexible waveguide with spaced conducting sections and method of making the same
US2557261A (en) * 1943-09-14 1951-06-19 Emi Ltd High-frequency electric transmission lines or wave guides
US2574790A (en) * 1946-05-24 1951-11-13 Aircraft Radio Corp Wave guide
US2592614A (en) * 1946-01-08 1952-04-15 Champion Paper & Fibre Co Method of making tubular metallic wave guides
US2870524A (en) * 1953-05-18 1959-01-27 Elliott Brothers London Ltd Manufacture of waveguide components
DE1099016B (en) * 1955-08-31 1961-02-09 Siemens Ag System of several hollow high-frequency lines arranged parallel to one another at a distance
US3157847A (en) * 1961-07-11 1964-11-17 Robert M Williams Multilayered waveguide circuitry formed by stacking plates having surface grooves
US3195079A (en) * 1963-10-07 1965-07-13 Burton Silverplating Built up nonmetallic wave guide having metallic coating extending into corner joint and method of making same
US3234489A (en) * 1962-06-16 1966-02-08 Felten & Guilleaume Carlswerk Rectangular waveguide
US3308402A (en) * 1964-12-30 1967-03-07 Teledyne Inc Cavity resonator apparatus
US3364415A (en) * 1965-02-01 1968-01-16 Bell Telephone Labor Inc Magnetic pulse excitation of fallou generator
US3487539A (en) * 1964-09-29 1970-01-06 Gen Dynamics Corp Method of manufacturing flanged waveguides
US3503275A (en) * 1967-10-26 1970-03-31 North American Rockwell System for motion transfer by balanced cables
US3518688A (en) * 1965-11-22 1970-06-30 Itt Microwave strip transmission line adapted for integral slot antenna
US3574928A (en) * 1968-10-17 1971-04-13 Ernest T Long Method for fitting and installing microwaveguides
US3617960A (en) * 1969-08-25 1971-11-02 Sperry Rand Corp Waveguide partially formed of a flexible member for obtaining uniform minimal pressure contact with a load therein
US3686590A (en) * 1971-06-24 1972-08-22 Rca Corp Sheet metal waveguide constructed of a pair of interlocking sheet metal channels
US3784938A (en) * 1971-01-12 1974-01-08 Cambridge Scientific Instr Ltd Microwave spectroscopy
US3830067A (en) * 1970-08-06 1974-08-20 D Boyle Irrigation system
US4020875A (en) * 1974-08-14 1977-05-03 Sony Corporation Waveguide elements
FR2420219A1 (en) * 1978-02-27 1979-10-12 Inst Radiotekh Elektron PROCESS FOR MANUFACTURING WAVEGUIDES FOR TRANSMISSION OF ELECTROMAGNETIC WAVES AND WAVEGUIDES MADE ACCORDING TO THIS PROCESS
US4877147A (en) * 1988-08-01 1989-10-31 Ford Motor Company Tank comprising embedded flanged conduit
US20100026423A1 (en) * 2008-07-29 2010-02-04 Microelectronics Technology Inc. Waveguide
US20170062895A1 (en) * 2015-09-01 2017-03-02 Duke University Rapid radio frequency (rf) waveguide components and related methods

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2557261A (en) * 1943-09-14 1951-06-19 Emi Ltd High-frequency electric transmission lines or wave guides
US2511896A (en) * 1944-05-31 1950-06-20 Philco Corp Device for flexibly interconnecting wave guides
US2479053A (en) * 1945-06-22 1949-08-16 Budd Co Copper-coated magnetic steel yoke for welding apparatus
US2592614A (en) * 1946-01-08 1952-04-15 Champion Paper & Fibre Co Method of making tubular metallic wave guides
US2574790A (en) * 1946-05-24 1951-11-13 Aircraft Radio Corp Wave guide
US2556187A (en) * 1949-07-08 1951-06-12 Airtron Inc Flexible waveguide with spaced conducting sections and method of making the same
US2870524A (en) * 1953-05-18 1959-01-27 Elliott Brothers London Ltd Manufacture of waveguide components
DE1099016B (en) * 1955-08-31 1961-02-09 Siemens Ag System of several hollow high-frequency lines arranged parallel to one another at a distance
US3157847A (en) * 1961-07-11 1964-11-17 Robert M Williams Multilayered waveguide circuitry formed by stacking plates having surface grooves
US3234489A (en) * 1962-06-16 1966-02-08 Felten & Guilleaume Carlswerk Rectangular waveguide
US3195079A (en) * 1963-10-07 1965-07-13 Burton Silverplating Built up nonmetallic wave guide having metallic coating extending into corner joint and method of making same
US3487539A (en) * 1964-09-29 1970-01-06 Gen Dynamics Corp Method of manufacturing flanged waveguides
US3308402A (en) * 1964-12-30 1967-03-07 Teledyne Inc Cavity resonator apparatus
US3364415A (en) * 1965-02-01 1968-01-16 Bell Telephone Labor Inc Magnetic pulse excitation of fallou generator
US3518688A (en) * 1965-11-22 1970-06-30 Itt Microwave strip transmission line adapted for integral slot antenna
US3503275A (en) * 1967-10-26 1970-03-31 North American Rockwell System for motion transfer by balanced cables
US3574928A (en) * 1968-10-17 1971-04-13 Ernest T Long Method for fitting and installing microwaveguides
US3617960A (en) * 1969-08-25 1971-11-02 Sperry Rand Corp Waveguide partially formed of a flexible member for obtaining uniform minimal pressure contact with a load therein
US3830067A (en) * 1970-08-06 1974-08-20 D Boyle Irrigation system
US3784938A (en) * 1971-01-12 1974-01-08 Cambridge Scientific Instr Ltd Microwave spectroscopy
US3686590A (en) * 1971-06-24 1972-08-22 Rca Corp Sheet metal waveguide constructed of a pair of interlocking sheet metal channels
US4020875A (en) * 1974-08-14 1977-05-03 Sony Corporation Waveguide elements
FR2420219A1 (en) * 1978-02-27 1979-10-12 Inst Radiotekh Elektron PROCESS FOR MANUFACTURING WAVEGUIDES FOR TRANSMISSION OF ELECTROMAGNETIC WAVES AND WAVEGUIDES MADE ACCORDING TO THIS PROCESS
US4877147A (en) * 1988-08-01 1989-10-31 Ford Motor Company Tank comprising embedded flanged conduit
US20100026423A1 (en) * 2008-07-29 2010-02-04 Microelectronics Technology Inc. Waveguide
US8008998B2 (en) * 2008-07-29 2011-08-30 Microelectronics Technology Inc. Waveguide comprised of two waveguide members assembled by using a positioning pin and a positioning hole in the two members
US20170062895A1 (en) * 2015-09-01 2017-03-02 Duke University Rapid radio frequency (rf) waveguide components and related methods
US10096880B2 (en) * 2015-09-01 2018-10-09 Duke University Waveguide comprising first and second components attachable together using an extruding lip and an intruding groove

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