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GB1231930A - - Google Patents

Info

Publication number
GB1231930A
GB1231930A GB1231930DA GB1231930A GB 1231930 A GB1231930 A GB 1231930A GB 1231930D A GB1231930D A GB 1231930DA GB 1231930 A GB1231930 A GB 1231930A
Authority
GB
United Kingdom
Prior art keywords
bulges
waveguide
section
max
walls
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
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 filed Critical
Publication of GB1231930A publication Critical patent/GB1231930A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P3/00—Waveguides; Transmission lines of the waveguide type
    • H01P3/12—Hollow waveguides
    • H01P3/14—Hollow waveguides flexible
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S138/00—Pipes and tubular conduits
    • Y10S138/11—Shape

Landscapes

  • Waveguides (AREA)
  • Waveguide Aerials (AREA)

Abstract

1,231,930. Waveguides. TELEFUNKEN PATENTVERWERTUNGS - G.m.b.H. 13 Aug., 1969 [21 Sept., 1968], No. 40541/69. Heading H1W. A bendable waveguide has a curvilinear, approximately rectangular cross-section, comprising one or more inward bulges forming ridges, the ratio of max. depth to max. width (b/a) being less than 0À5. The distance d is such that propagation of undesired modes is prevented. The waveguide may have (as shown) a rectangular external section, or an external section resembling the internal section (Fig. 2, not shown). In the latter case, the waveguide may be constructed from a seamless metal tube and the walls may be thinner in the vicinity of the bulges than elsewhere whereby flexibility is improved. The inward facing walls of the bulges may be flat. The space between the bulges may be filled with dielectric material 3.
GB1231930D 1968-09-21 1969-08-13 Expired GB1231930A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1790171A DE1790171C2 (en) 1968-09-21 1968-09-21 Broadband waveguide

Publications (1)

Publication Number Publication Date
GB1231930A true GB1231930A (en) 1971-05-12

Family

ID=5706922

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1231930D Expired GB1231930A (en) 1968-09-21 1969-08-13

Country Status (6)

Country Link
US (1) US3659234A (en)
JP (1) JPS4825157B1 (en)
BR (1) BR6910653D0 (en)
DE (1) DE1790171C2 (en)
FR (1) FR2018577A1 (en)
GB (1) GB1231930A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2059494B2 (en) * 1970-12-03 1972-03-16 Licentia Gmbh FLEXIBLE HOLLOW CONDUCTOR
US4603942A (en) * 1983-10-11 1986-08-05 General Dynamics, Pomona Division Flexible, dielectric millimeter waveguide
US4978934A (en) * 1989-06-12 1990-12-18 Andrew Corportion Semi-flexible double-ridge waveguide
JP2800636B2 (en) * 1993-05-12 1998-09-21 日本電気株式会社 Flexible waveguide
JP7152716B2 (en) * 2018-10-09 2022-10-13 オリンパス株式会社 Flexible waveguide, image transmission device having flexible waveguide, endoscope and endoscope system having flexible waveguide
US11462808B2 (en) * 2020-05-19 2022-10-04 Roos Instruments, Inc. Conformable waveguide having an obround cross section, a tool for manually conforming an obround waveguide and a method for forming the conformable waveguide
US11936091B2 (en) * 2020-12-11 2024-03-19 Rtx Corporation Waveguide apparatus including channel segments having surfaces that are angularly joined at a junction or a corner

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE892003C (en) * 1953-08-20 Siemens iS. Halske Aktiengesellschaft, Berlin und München Dielectric tubular cable with a flattened cross-section for the transmission of ultra-short waves
US1023163A (en) * 1911-02-02 1912-04-16 Charles Nicholas Monsarrat Hollow section.
US1839919A (en) * 1927-03-26 1932-01-05 Hall Charles Ward Seamless hollow metallic section and process of making the same
US1928009A (en) * 1927-12-27 1933-09-26 Firm Dornier Metallbauten G M Hollow metal beam
US1859259A (en) * 1929-07-08 1932-05-17 Chamberlain Electrical wiring conduit
NL54984C (en) * 1937-09-15
FR49457E (en) * 1937-11-23 1939-05-01 Materiel Telephonique Very high frequency wave transmission systems
US2406838A (en) * 1943-06-28 1946-09-03 Francis M Kepler Method of forming bent tubing
GB575228A (en) * 1944-03-08 1946-02-08 William Douglas Allen Improvements in or relating to electro-magnetic wave guides
DE1025473B (en) * 1954-04-30 1958-03-06 Siemens Ag Flexible metallic waveguide for the transmission of waveguide waves
US3205501A (en) * 1959-10-01 1965-09-07 Gen Electric Closely spaced stocked waveguide antenna array employing reciprocal ridged wageguide phase shifters
DE1134428B (en) * 1960-09-29 1962-08-09 Siemens Ag Method for laying hollow pipes
DE1159061B (en) * 1962-02-16 1963-12-12 Siemens Ag Round, metallic waveguide for the transmission of very short electromagnetic waves
DE1193125B (en) * 1963-09-18 1965-05-20 Telefunken Patent Reelable waveguide
US3239002A (en) * 1964-01-06 1966-03-08 Young Radiator Co Tube formation for structuring heatexchanger core-units
DE1490782A1 (en) * 1964-04-04 1969-07-03 Telefunken Patent Waveguide
DE1490804A1 (en) * 1964-08-06 1969-07-17 Telefunken Patent Loaded hollow pipeline
GB1134041A (en) * 1965-01-05 1968-11-20 Btr Industries Ltd An improved tube
DE1590675C3 (en) * 1965-10-01 1974-07-18 Telefunken Patentverwertungsgesellschaft Mbh, 7900 Ulm Waveguide

Also Published As

Publication number Publication date
JPS4825157B1 (en) 1973-07-26
DE1790171C2 (en) 1974-08-01
DE1790171B1 (en) 1974-01-10
FR2018577A1 (en) 1970-05-29
US3659234A (en) 1972-04-25
BR6910653D0 (en) 1973-02-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee