GB828565A - Improvements in or relating to wave guide impedance branches - Google Patents

Improvements in or relating to wave guide impedance branches

Info

Publication number
GB828565A
GB828565A GB15755/57A GB1575557A GB828565A GB 828565 A GB828565 A GB 828565A GB 15755/57 A GB15755/57 A GB 15755/57A GB 1575557 A GB1575557 A GB 1575557A GB 828565 A GB828565 A GB 828565A
Authority
GB
United Kingdom
Prior art keywords
rod
rods
wavelength
waveguide
field
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
GB15755/57A
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
Publication of GB828565A publication Critical patent/GB828565A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/04—Coupling devices of the waveguide type with variable factor of coupling

Abstract

828,565. Waveguide impedances. WESTERN ELECTRIC CO. Inc. May 17, 1957 [May 21, 1956], No. 15755/57. Class 40 (8). A hollow waveguide 6 of rectangular crosssection has an L-shaped conductive element or rod 9 supported on one wall 7; the effective length of the supporting portion 12 being an odd integral of quarter free space wavelengths and that of the remainder 13 being a half freespace wavelength at the operative frequency. The waveguide transmits the T.E. mode with its electric field E linearly polarized perpendicular to the wider walls 7 and 8. The rod which is rotatably and slidably connected to wall 7 at 10, is coupled to the field by section 12 and forms an impedance branch, being resonant when section 13 is a half-wavelength long, Fig. 2. In addition to rod 9, rods 18 and 19 in the same transverse plane may be added to vary the characteristics and they may be spaced from rod 9 by more than a quarter-wavelength; rod 19 having, if required, a reactance opposite in sign but equal in magnitude to that of rod 9. Rods 21, 24 and 27 may also be used in combination with rod 9, the latter being coupled to the field thereby. Conductive discs such as 14 may be fixed to the inner ends of the rods.
GB15755/57A 1956-05-21 1957-05-17 Improvements in or relating to wave guide impedance branches Expired GB828565A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US586104A US2910659A (en) 1956-05-21 1956-05-21 Microwave impedance branch

Publications (1)

Publication Number Publication Date
GB828565A true GB828565A (en) 1960-02-17

Family

ID=24344323

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15755/57A Expired GB828565A (en) 1956-05-21 1957-05-17 Improvements in or relating to wave guide impedance branches

Country Status (4)

Country Link
US (1) US2910659A (en)
DE (1) DE1055626B (en)
FR (1) FR1173003A (en)
GB (1) GB828565A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3019400A (en) * 1959-01-27 1962-01-30 Robert V Garver Reversed semiconductor microwave switch
US3227917A (en) * 1963-05-27 1966-01-04 Eitel Mccullough Inc Cavity resonator with flexible means forming both hermetic seal and pivot point
US3573679A (en) * 1968-01-12 1971-04-06 Her Britannic Majesty S Govern Tuning apparatus for microwave resonant cavities
FR2583597A1 (en) * 1985-06-13 1986-12-19 Alcatel Thomson Faisceaux HYPERFREQUENCY PASSPORT FILTER IN EVANESCENT MODE
FR2632123B1 (en) * 1988-05-27 1991-01-18 Alcatel Thomson Faisceaux MULTIPLEX MICROWAVE FILTER, AND METHOD FOR ADJUSTING SUCH A FILTER
EP0913011A1 (en) * 1996-07-24 1999-05-06 AFT Advanced Ferrite Technology GmbH Device for tuning a microwave system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE504642A (en) *
US2574433A (en) * 1943-10-01 1951-11-06 Roger E Clapp System for directional interchange of energy between wave guides and free space
US2597144A (en) * 1945-09-14 1952-05-20 Us Navy Electromagnetic wave control structure
FR941548A (en) * 1947-03-21 1949-01-13 Sadir Carpentier Improvements to ultra-short wave modulation systems
US2510288A (en) * 1947-12-05 1950-06-06 Bell Telephone Labor Inc Microwave band reflection filter
US2530679A (en) * 1948-12-23 1950-11-21 Bell Telephone Labor Inc Resonant impedance branch
GB689230A (en) * 1951-08-23 1953-03-25 Standard Telephones Cables Ltd Arrangements for compensating the effects of discontinuities in electromagnetic waveguides

Also Published As

Publication number Publication date
DE1055626B (en) 1959-04-23
US2910659A (en) 1959-10-27
FR1173003A (en) 1959-02-18

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