US2528248A - Wide band flexible section for wave guides - Google Patents

Wide band flexible section for wave guides Download PDF

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Publication number
US2528248A
US2528248A US577900A US57790045A US2528248A US 2528248 A US2528248 A US 2528248A US 577900 A US577900 A US 577900A US 57790045 A US57790045 A US 57790045A US 2528248 A US2528248 A US 2528248A
Authority
US
United States
Prior art keywords
disks
flexible
flexible section
wave
wave guide
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 - Lifetime
Application number
US577900A
Other languages
English (en)
Inventor
Jr Hubert J Schlafly
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.)
General Electric Co
Original Assignee
General Electric Co
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 FR964836D priority Critical patent/FR964836A/fr
Application filed by General Electric Co filed Critical General Electric Co
Priority to US577900A priority patent/US2528248A/en
Priority to GB3889/46A priority patent/GB607531A/en
Application granted granted Critical
Publication of US2528248A publication Critical patent/US2528248A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • My invention relates to dielectric wave guides of the hollow pipe type used for transmission of ultra high frequency energy and, particularly, to a flexible section for use in such guides.
  • One .of the features of my invention is the forming of a flexible section of a Wave .guide comprising a plurality ofclosely s'pacedmetallic
  • a flexible section for dielectric wave g de of --the rectangular hollow pipe type and through whichelectromagnetic waves, for example o f thetransverse electric type and shown the drawing as TEOl waves, are-propagated.
  • li he ex ible section comprises a plurality of closely spaced transverse substantially rigid metallic disksl each of which is provided with a central- 1y positioned rectangular opening 2 suitable for transmission of transverse electric waves-there,- through.
  • the central rectangular holes of success v disks attes aligned that t tdis 9 the e tit is ali n d with the a d hi one degree of variation.
  • a flexible circular snetallic collar member-:R which is positioned between adjacent onesof the disks I and which is: curved, near its outer edge at the point l, has its inner ,edgeB fitting into the shoulder 4 of oneof the adjacent disks and its .outer edge 1 fitting into the natch ,3 ofthe other of the adjacent disks.
  • ;-the disks l are made oiva goodlconductive material, such as brass.
  • the collar,ormetallicspinnin .6 is made of a .good conductive material which is likewise exible suchas beryllium copper or phosphor bronze.
  • The]collar; .5 ishermeticallysealed :to adjacent ,ones of the disksat its edges 8 and 9, asiby-zbra ingito theshoulder 4 and by solderin of two adjacent disks I and the collar 6.
  • short circuit is effectively a half wave length from to the notch 3.
  • the flexibility of the spring metal of which the collar 6 is formed permits a substantial angular displacement between adjacent ones of the disks I. When a substantial number of these sections are joined together, as shown in Fig. l, the total angle of bending will be the summation of angles between the individual sections and the resultant flexible section provides a large angular movement for a very short length of the wave guide.
  • the mean length of the disk I between points on the notch 3 therein and the mid point I along a leg of the rectangular opening 2 is made equal to an effective half wave length in this radial cavity at this desired operating frequency.
  • the connection of the collar 6 to the disk I in the groove 3 functions as a short-circuit at the end of the radial cavity or transmission line formed between the opposed surfaces This the inner edge I I of the opening in the disk.
  • the wave guide section provides a completely enclosed metallic construction which prevents leakage of any ultra high frequency power, as well as permits hermetic scaling in operation at pressures other than atmospheric pressure without substantial distortion of the flexible walls.
  • a flexible section for a wave guide of the rectangular hollow pipe type comprising a plurality of closely spaced metallic disks, each of said disks having substantially planar parallel faces extending outwardly from its axis, the opposed faces of adjacent disks being arranged in substantially parallel relation with a dielectric gap therebetween, flexible metallic members affixed to adjacent ones of said disks, said disks having centrally positioned rectangular apertures through which electromagnetic waves may be propagated, said adjacent ones of said disks and the flexible members affixed thereto forming a section of radial transmission line, and the length of said line being correlated with respect to the frequency of said waves to present a low impedance path for said waves across said gap.
  • a flexible section for a wave guide of the rectangular hollow pipe type comprising a plurality of substantiallyrigid metallic disks having aligned, centrally positioned, rectangular openings therein, flexible, circular metallic members having a central aperture larger than said rectangular opening, said members having inner and outer edges sealed respectively to opposing faces of adjacent ones of said disks to form a sealed enclosure therebetween, the radial distance between said outer edge and the longer leg of said rectangular opening at the mid point thereof being ef fectively equal to a half wave length of the electromagnetic wave propagated through said guide.
  • a flexible section therefor comprising a plurality of closely spaced transverse metallic disks having aligned, centrally positioned, rectangular opening therethrough, a flexible metallic collar having a central aperture substantially larger than said openings positioned between adjacent ones of said disks, said collar having inner and outer edges connected respectively to the opposing faces "of said adjacent disks, the radial distance along each of said disks between the edge of the opening therein and the point of connection of the outer edge of the collar associated therewith being of the order of a half wave length at the frequency of the wave propagated through said guide.
  • a flexible section for a wave guide of the hollow pipe type comprising a plurality of closely spaced transverse metallic disks having aligned, centrally positioned, openings therethrough, a flexible metallic collar positioned between adj acent ones of said disks, said collar having inner and outer edges connected respectively to the opposing faces of said adjacent disks, each of said disks being of reduced thickness between the outer edge thereof and the point of connection of said inner edge therewith to permit substantial angular movement between said adiacent disks.
  • a flexible section for a wave guide comprising a pair of spaced rigid metallic disks and an interposed flexible metallic disk having a common axis, said flexible and rigid disks each comprising a pair of'substantially planar parallel faces extending outwardly from said axis, the opposed faces of adjacent disksbeing arranged in substantially parallel relation with a dielectric gap therebetween, said flexible disk having an outer edge connected to one disk of said pair of disks and an inner edge, connected to the other disk of said pair of disks, all of said disks having aligned central apertures of a configuration adapted to transmit an electromagnet Wave supplied thereto.
  • a flexible section for a wave guide comprising a pair of spaced rigid metallic disks and an interposed flexible metallic disk having a common axis, said flexible and rigid disks each comprising a pair of substantially planar parallel faces extending outwardly from said axis, the opposed faces of adjacent disks being arranged in substantially parallel relation with a dielectric gap therebetween, said flexible disk having an outer edge connected to one disk of said pair of disks and an inner edge connected to the other disk of said pair of disks, all of said disks having aligned central apertures, the configuration of said apertures and the distance between said apertures and said outer edge being correlated to the frequency and mode of an electromagnetic wave supplied thereto to effect substantially reflectionless transmission of said wave.

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  • Waveguides (AREA)
US577900A 1945-02-14 1945-02-14 Wide band flexible section for wave guides Expired - Lifetime US2528248A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR964836D FR964836A (es) 1945-02-14
US577900A US2528248A (en) 1945-02-14 1945-02-14 Wide band flexible section for wave guides
GB3889/46A GB607531A (en) 1945-02-14 1946-02-07 Improvements in and relating to high frequency wave guides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US577900A US2528248A (en) 1945-02-14 1945-02-14 Wide band flexible section for wave guides

Publications (1)

Publication Number Publication Date
US2528248A true US2528248A (en) 1950-10-31

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ID=24310589

Family Applications (1)

Application Number Title Priority Date Filing Date
US577900A Expired - Lifetime US2528248A (en) 1945-02-14 1945-02-14 Wide band flexible section for wave guides

Country Status (3)

Country Link
US (1) US2528248A (es)
FR (1) FR964836A (es)
GB (1) GB607531A (es)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2623121A (en) * 1950-04-28 1952-12-23 Nat Union Radio Corp Wave guide
DE1027744B (de) * 1955-08-31 1958-04-10 Siemens Ag Hohlleiter fuer die UEbertragung von magnetischen Hohlrohrwellen
US2883632A (en) * 1954-12-14 1959-04-21 Decca Record Co Ltd Waveguides
US2956248A (en) * 1954-12-27 1960-10-11 Strand John Flexible transmission line
DE1144570B (de) * 1958-08-16 1963-02-28 Zahnschneidemaschinenfabrik Mo Zahnradwaelzfraesmaschine
US3822411A (en) * 1971-05-06 1974-07-02 Andrew Corp Corrugated waveguide construction

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2524720A2 (fr) * 1982-04-02 1983-10-07 Thomson Csf Antenne cassegrain inversee pour radar a fonction multiple

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2165961A (en) * 1935-10-22 1939-07-11 Emi Ltd High frequency signaling system
US2338441A (en) * 1939-10-31 1944-01-04 Kohl Karl Ultra high frequency cable
US2374498A (en) * 1941-07-10 1945-04-24 British Insulated Cables Ltd Guide for the transmission of electric waves

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2165961A (en) * 1935-10-22 1939-07-11 Emi Ltd High frequency signaling system
US2338441A (en) * 1939-10-31 1944-01-04 Kohl Karl Ultra high frequency cable
US2374498A (en) * 1941-07-10 1945-04-24 British Insulated Cables Ltd Guide for the transmission of electric waves

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2623121A (en) * 1950-04-28 1952-12-23 Nat Union Radio Corp Wave guide
US2883632A (en) * 1954-12-14 1959-04-21 Decca Record Co Ltd Waveguides
US2956248A (en) * 1954-12-27 1960-10-11 Strand John Flexible transmission line
DE1027744B (de) * 1955-08-31 1958-04-10 Siemens Ag Hohlleiter fuer die UEbertragung von magnetischen Hohlrohrwellen
DE1144570B (de) * 1958-08-16 1963-02-28 Zahnschneidemaschinenfabrik Mo Zahnradwaelzfraesmaschine
US3822411A (en) * 1971-05-06 1974-07-02 Andrew Corp Corrugated waveguide construction

Also Published As

Publication number Publication date
GB607531A (en) 1948-09-01
FR964836A (es) 1950-08-25

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