GB706234A - Improvements in or relating to directional couplers for electromagnetic wave transmission systems - Google Patents

Improvements in or relating to directional couplers for electromagnetic wave transmission systems

Info

Publication number
GB706234A
GB706234A GB6665/52A GB666552A GB706234A GB 706234 A GB706234 A GB 706234A GB 6665/52 A GB6665/52 A GB 6665/52A GB 666552 A GB666552 A GB 666552A GB 706234 A GB706234 A GB 706234A
Authority
GB
United Kingdom
Prior art keywords
aperture
varying
divided
directional
dividers
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
GB6665/52A
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 GB706234A publication Critical patent/GB706234A/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
    • H01P5/12—Coupling devices having more than two ports
    • H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
    • H01P5/18—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers
    • H01P5/181—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers the guides being hollow waveguides
    • H01P5/182—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers the guides being hollow waveguides the waveguides being arranged in parallel

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

706,234. Directional couplers for wave-guides. WESTERN ELECTRIC CO., Inc. March 14, 1952 [March 17, 1951; April 5, 1951], No. 6665/52. Class 40 (8) The coupling between the main wave guide 10, Fig. 1, and adjacent auxiliary waveguide B of a directional coupling apparatus, is in the form of an aperture 18 divided into a plurality of smaller spaces 19 by a plurality of dividers or wires 20. Aperture 18 is formed in an insert 17 which is placed in slot 16 in the adjacent walls 14 and 24 of wave guides 10 and 13 respectively. Various directional bandpass characteristics are obtained by either (i) varying the shape of the divided aperture 18, these shapes being limited to those simple geometric shapes for which the Fourier transforms utilized in obtaining their respective directivity characteristics are functions of a single angular variable and can be readily derived, e.g. rectangles, isosceles triangles, areas under co-sine or exponential curves, or various composites of these ; or (ii) varying the number of dividers or wires 20, per unit length. Control of the power coupling ratio without affecting the directivity characteristic is achieved by varying the size of the aperture 18 or by varying the total number of spaces 19. A modification is described having a multiplicity of closely spaced holes 19, Fig. 19, distributed longitudinally and transversely throughout the area of the divided aperture 18.
GB6665/52A 1951-03-17 1952-03-14 Improvements in or relating to directional couplers for electromagnetic wave transmission systems Expired GB706234A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US216132A US2701340A (en) 1951-03-17 1951-03-17 High-frequency directional coupler

Publications (1)

Publication Number Publication Date
GB706234A true GB706234A (en) 1954-03-24

Family

ID=22805835

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6665/52A Expired GB706234A (en) 1951-03-17 1952-03-14 Improvements in or relating to directional couplers for electromagnetic wave transmission systems

Country Status (5)

Country Link
US (1) US2701340A (en)
BE (1) BE509967A (en)
DE (1) DE972754C (en)
FR (1) FR1048672A (en)
GB (1) GB706234A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1028177B (en) * 1956-08-29 1958-04-17 Siemens Ag Transmission arrangement for very short electromagnetic waves
RU213532U1 (en) * 2022-05-19 2022-09-15 Федеральное Государственное Унитарное Предприятие "Всероссийский Научно-Исследовательский Институт Физико-Технических И Радиотехнических Измерений" (Фгуп "Вниифтри") Pass-through power converter based on the use of a matrix of thermistor microwave sensors

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125731A (en) * 1964-03-17 Cross guide coupler having a coupling aperture bridged
US2813254A (en) * 1952-05-23 1957-11-12 Robert D Hatcher Broad band maching hybrid waveguide
US2876421A (en) * 1954-07-06 1959-03-03 Henry J Riblet Microwave hybrid junctions
US2975381A (en) * 1957-02-21 1961-03-14 Raytheon Co Duplexers
US3255456A (en) * 1963-03-08 1966-06-07 Hazeltine Research Inc H-plane reflex bend for a two layer pillbox antenna utilizing a plurality of holes to couple the layers
US3535659A (en) * 1968-03-11 1970-10-20 Edward Salzberg Waveguide hybrid junctions
US3737810A (en) * 1969-05-05 1973-06-05 Radiation Systems Inc Wideband tem components
CN103078164B (en) * 2013-01-31 2015-07-29 成都赛纳赛德科技有限公司 Compact single-row long-hole directional coupler
US9780834B2 (en) * 2014-10-21 2017-10-03 At&T Intellectual Property I, L.P. Method and apparatus for transmitting electromagnetic waves
EP3333968B1 (en) * 2016-12-12 2022-10-05 European Space Agency (ESA) A directional coupler and a method of manufacturing thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2199221A (en) * 1938-08-20 1940-04-30 Bell Telephone Labor Inc Wave filter
US2423526A (en) * 1944-03-30 1947-07-08 Rca Corp Reflectometer for waveguide transmission lines
US2566386A (en) * 1944-10-24 1951-09-04 Univ Leland Stanford Junior Frequency and direction selective high-frequency transmission line apparatus
US2531777A (en) * 1945-10-24 1950-11-28 John N Marshall Variable directive coupler
US2575571A (en) * 1947-05-13 1951-11-20 Hazeltine Research Inc Wave-signal directional coupler
US2532317A (en) * 1947-08-25 1950-12-05 Sperry Corp Ultra high frequency coupler
US2560806A (en) * 1948-03-05 1951-07-17 Bell Telephone Labor Inc Echo suppression in transmission lines
US2568090A (en) * 1948-06-22 1951-09-18 Raytheon Mfg Co Balanced mixer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1028177B (en) * 1956-08-29 1958-04-17 Siemens Ag Transmission arrangement for very short electromagnetic waves
RU213532U1 (en) * 2022-05-19 2022-09-15 Федеральное Государственное Унитарное Предприятие "Всероссийский Научно-Исследовательский Институт Физико-Технических И Радиотехнических Измерений" (Фгуп "Вниифтри") Pass-through power converter based on the use of a matrix of thermistor microwave sensors

Also Published As

Publication number Publication date
FR1048672A (en) 1953-12-23
DE972754C (en) 1959-09-17
US2701340A (en) 1955-02-01
BE509967A (en)

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