GB1351871A - Mode filter for an electromagnetic waveguide - Google Patents

Mode filter for an electromagnetic waveguide

Info

Publication number
GB1351871A
GB1351871A GB370671*[A GB1351871DA GB1351871A GB 1351871 A GB1351871 A GB 1351871A GB 1351871D A GB1351871D A GB 1351871DA GB 1351871 A GB1351871 A GB 1351871A
Authority
GB
United Kingdom
Prior art keywords
filter
layer
helix
feb
mode filter
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
GB370671*[A
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.)
Balfour Beatty PLC
Original Assignee
BICC PLC
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 BICC PLC filed Critical BICC PLC
Publication of GB1351871A publication Critical patent/GB1351871A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/16—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion
    • H01P1/163—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion specifically adapted for selection or promotion of the TE01 circular-electric mode
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/52—Systems for transmission between fixed stations via waveguides

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

1351871 Waveguides BRITISH INSULATED CALLENDERS CABLES Ltd 2 Feb 1972 [2 Feb 1971] 3706/71 Heading H1W A mode filter for use with circular waveguides comprises an inner tubular layer of insulating material (omitted from Fig. 3) on the exterior of which are either a plurality of spaced, continuous, conductive circumferential rings 13 or at least one helix of conductive material. A reinforcing insulating layer 11 covers the rings or helix with the possible intervention of a lossy layer, and the insulating layer may be protected by a thin steel jacket or a braided wire sleeve. Sockets 18 at the ends of the filter permit direct connection of circular waveguides, but separate couplings may be used. Methods of building up the filter on a cylindrical mandrel are described and claimed.
GB370671*[A 1971-02-02 1971-02-02 Mode filter for an electromagnetic waveguide Expired GB1351871A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB370671 1971-02-02

Publications (1)

Publication Number Publication Date
GB1351871A true GB1351871A (en) 1974-05-01

Family

ID=9763430

Family Applications (1)

Application Number Title Priority Date Filing Date
GB370671*[A Expired GB1351871A (en) 1971-02-02 1971-02-02 Mode filter for an electromagnetic waveguide

Country Status (3)

Country Link
US (1) US3771078A (en)
FR (1) FR2124407A1 (en)
GB (1) GB1351871A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1510112A (en) * 1974-03-29 1978-05-10 Bicc Ltd Electromagnetic waveguides
US5942956A (en) * 1996-01-18 1999-08-24 Purdue Research Foundation Design method for compact waveguide mode control and converter devices
US9531048B2 (en) 2013-03-13 2016-12-27 Space Systems/Loral, Llc Mode filter
US9225052B2 (en) * 2013-08-29 2015-12-29 Thinkom Solutions, Inc. Ruggedized low-relection/high-transmission integrated spindle for parallel-plate transmission-line structures

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2644028A (en) * 1942-05-04 1953-06-30 Edwin J Bernet Expansion joint for coaxial lines
US2544842A (en) * 1943-06-23 1951-03-13 James L Lawson Overload protection of highfrequency receivers
DE866960C (en) * 1944-03-12 1953-02-12 Siemens Ag Hollow cable for mobile shortwave transmitting and receiving systems for the transmission of frequencies between 1 and 10 gigahertz
US2564007A (en) * 1947-11-14 1951-08-14 Bell Telephone Labor Inc Coupling for wave guides
DE820455C (en) * 1949-11-01 1951-11-12 Siemens & Halske A G Connection point for hollow tube cable
US2695255A (en) * 1950-10-25 1954-11-23 Douglas W Avery Method of expanding an elastic liner against the inner surface of a pipe
US2848695A (en) * 1954-03-15 1958-08-19 Bell Telephone Labor Inc Electromagnetic wave transmission
US3066268A (en) * 1955-08-05 1962-11-27 Int Standard Electric Corp Electric waveguide construction
BE570125A (en) * 1957-08-23
NL121090C (en) * 1957-08-23
US3003020A (en) * 1958-12-19 1961-10-03 Bell Telephone Labor Inc Joining assembly for wave guide sections or the like
GB960683A (en) * 1959-11-30 1964-06-17 Marconi Co Ltd Improvements in or relating to waveguides
US3149295A (en) * 1962-05-28 1964-09-15 Dow Chemical Co Waveguide joining by criss-cross welding of extended flanges
GB1151763A (en) * 1965-12-08 1969-05-14 Nat Res Dev Electromagnetic Waveguides.
US3573681A (en) * 1969-03-12 1971-04-06 Bell Telephone Labor Inc Helical waveguide formed from dielectric ribbon having symmetrically disposed conductive strips on opposite sides

Also Published As

Publication number Publication date
FR2124407A1 (en) 1972-09-22
US3771078A (en) 1973-11-06

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees