FR1358964A - Tapered Transition Section of Dielectric Sleeve Waveguides - Google Patents

Tapered Transition Section of Dielectric Sleeve Waveguides

Info

Publication number
FR1358964A
FR1358964A FR937850A FR937850A FR1358964A FR 1358964 A FR1358964 A FR 1358964A FR 937850 A FR937850 A FR 937850A FR 937850 A FR937850 A FR 937850A FR 1358964 A FR1358964 A FR 1358964A
Authority
FR
France
Prior art keywords
mode
sleeve
taper
waveguides
dielectric
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
FR937850A
Other languages
French (fr)
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of FR1358964A publication Critical patent/FR1358964A/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
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/02—Coupling devices of the waveguide type with invariable factor of coupling
    • H01P5/022—Transitions between lines of the same kind and shape, but with different dimensions
    • H01P5/024—Transitions between lines of the same kind and shape, but with different dimensions between hollow waveguides

Landscapes

  • Control Of Motors That Do Not Use Commutators (AREA)
  • Waveguide Aerials (AREA)

Abstract

1,036,846. Waveguides. WESTERN ELECTRIC CO. Inc. June 20, 1963 [June 26, 1962], No. 24564/63. Heading H1W. Generation of unwanted modes in a waveguide taper is reduced by providing a low-loss dielectric member at a position where the electric field-intensity of the unwanted mode is low and the intensity of the wanted mode is high. The invention may be applied to wave guides designed for transmission of the circularelectric TE 01 mode having tapered transmissions designed according to the methods described in Specification 883,179 and in the article " Circular Waveguide Taper of Improved Design," published in the Bell System Telephone Journal, July, 1958. Such a taper 12 is provided with a dielectric sleeve 13 supported, e.g. by dielectric discs 14, 15. Suppression of the TE 02 mode is achieved if the average radius b of the sleeve at a point is related to the taper radius a at that point by b/a=k 1 /k 2 , where k 1 and k 2 are roots of the Bessel junction of the first kind and order and are equal to 3À832 and 7À016 respectively. The thickness of the sleeve may be constant or may vary as 1/a. A further sleeve may be added, designed to prevent generation of the TE 03 mode. The tapers may consist of helical waveguide as described in Specification 883,439. The Specification contains a theoretical discussion of the invention.
FR937850A 1962-06-26 1963-06-12 Tapered Transition Section of Dielectric Sleeve Waveguides Expired FR1358964A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US205326A US3146414A (en) 1962-06-26 1962-06-26 Tapered waveguide transition section with dielectric sleeve positioned to reduce coupling between te circular modes

Publications (1)

Publication Number Publication Date
FR1358964A true FR1358964A (en) 1964-04-17

Family

ID=22761748

Family Applications (1)

Application Number Title Priority Date Filing Date
FR937850A Expired FR1358964A (en) 1962-06-26 1963-06-12 Tapered Transition Section of Dielectric Sleeve Waveguides

Country Status (5)

Country Link
US (1) US3146414A (en)
BE (1) BE634088A (en)
DE (1) DE1201432B (en)
FR (1) FR1358964A (en)
GB (1) GB1036846A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4598262A (en) * 1983-06-08 1986-07-01 Trw Inc. Quasi-optical waveguide filter
FR2619253B1 (en) * 1987-08-03 1990-01-19 Aerospatiale DEVICE FOR JOINING TWO STRUCTURES FOR MICROWAVE, COAXIAL AND DIFFERENT DIAMETERS
CN104466320B (en) * 2014-12-18 2017-05-10 西安电子工程研究所 Ka wave band broadband band-pass filter utilizing cut-off waveguide
US10027004B2 (en) * 2016-07-28 2018-07-17 The Boeing Company Apparatus including a dielectric material disposed in a waveguide, wherein the dielectric permittivity is lower in a mode combiner portion than in a mode transition portion

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2197122A (en) * 1937-06-18 1940-04-16 Bell Telephone Labor Inc Guided wave transmission
US2632806A (en) * 1945-09-18 1953-03-24 William M Preston Mode filter
US2762982A (en) * 1951-05-17 1956-09-11 Bell Telephone Labor Inc Mode conversion in wave guides
GB883439A (en) * 1957-09-16 1961-11-29 Western Electric Co Improvements in or relating to electromagnetic wave transmission systems
US2940057A (en) * 1957-11-01 1960-06-07 Bell Telephone Labor Inc Selective mode filters
DE1081521B (en) * 1958-02-05 1960-05-12 Siemens Ag Waveguide with cross-sectional changes
US3016502A (en) * 1959-12-23 1962-01-09 Bell Telephone Labor Inc Spurious mode suppressing wave guide
US3050701A (en) * 1961-03-22 1962-08-21 Bell Telephone Labor Inc Tapered waveguide transition section

Also Published As

Publication number Publication date
GB1036846A (en) 1966-07-20
DE1201432B (en) 1965-09-23
BE634088A (en)
US3146414A (en) 1964-08-25

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