GB583501A - Improvements in and relating to attenuators for wave guides - Google Patents

Improvements in and relating to attenuators for wave guides

Info

Publication number
GB583501A
GB583501A GB11835/44A GB1183544A GB583501A GB 583501 A GB583501 A GB 583501A GB 11835/44 A GB11835/44 A GB 11835/44A GB 1183544 A GB1183544 A GB 1183544A GB 583501 A GB583501 A GB 583501A
Authority
GB
United Kingdom
Prior art keywords
guide
strips
wave
june
wave guides
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
GB11835/44A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB583501A publication Critical patent/GB583501A/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
    • H01P1/22—Attenuating devices
    • H01P1/222—Waveguide attenuators

Landscapes

  • Non-Reversible Transmitting Devices (AREA)

Abstract

583,501. Wave guides. BRITISH THOMSON-HOUSTON CO., Ltd. June 21, 1944, No. 11835. Convention date, June 23, 1943. [Class 40 (v)] An attenuator for a wave guide 10 comprises two curved strips 17 of resistance material attached at one end to the inside of the.guide. Screws 34, 35 adjust the amount of projection into the guide. Wave energy in the guide is absorbed by the resistance material, and owing to the shape there is little reflection. The reflected waves are arranged to cancel out by relatively spacing the two strips 17 a quarter wavelength along the guide. The strips 17 are of moulded phenolic resin coated with flnely divided graphite. Only one strip may be used, and the strips may be fixed at both ends if no adjustment is desired.
GB11835/44A 1943-06-23 1944-06-21 Improvements in and relating to attenuators for wave guides Expired GB583501A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US491889A US2594978A (en) 1943-06-23 1943-06-23 Wave guide attenuator

Publications (1)

Publication Number Publication Date
GB583501A true GB583501A (en) 1946-12-19

Family

ID=23954086

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11835/44A Expired GB583501A (en) 1943-06-23 1944-06-21 Improvements in and relating to attenuators for wave guides

Country Status (3)

Country Link
US (1) US2594978A (en)
FR (1) FR964835A (en)
GB (1) GB583501A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2567210A (en) * 1947-07-23 1951-09-11 Sperry Corp Ultra-high-frequency attenuator
US2673962A (en) * 1949-01-18 1954-03-30 Bell Telephone Labor Inc Mode suppression in curved waveguide bends
US2679632A (en) * 1950-06-28 1954-05-25 Bell Telephone Labor Inc Directional coupler
US2737631A (en) * 1950-05-09 1956-03-06 Int Standard Electric Corp Cavity resonators

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE483449A (en) * 1946-01-15
US2796588A (en) * 1946-02-01 1957-06-18 Richard M Walker Compact waveguide attenuator
US2705780A (en) * 1946-11-02 1955-04-05 Polytechnie Inst Matched resistance film type wave guide attenuators
BE527584A (en) * 1952-05-08
DE962181C (en) * 1953-02-20 1957-04-18 Siemens Ag Device for adjusting the phase position of an electromagnetic oscillation in a waveguide with a rectangular cross section
US3041558A (en) * 1955-03-24 1962-06-26 Gen Electric Waveguide system
US3450990A (en) * 1957-01-16 1969-06-17 Gilfillan Corp Frequency indication system
US3022474A (en) * 1960-01-08 1962-02-20 Don Lan Electronics Inc Micro-wave attenuator
CH384647A (en) * 1960-07-26 1964-11-30 Staeger Christian Lossy waveguide component, especially with low reflection
FR2528632A1 (en) * 1982-06-15 1983-12-16 Thomson Csf Microwave tube harmonic measuring appts. - uses attenuator contg. cooling fins and absorbing fundamental microwave frequency but transmitting harmonics

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2197123A (en) * 1937-06-18 1940-04-16 Bell Telephone Labor Inc Guided wave transmission

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2567210A (en) * 1947-07-23 1951-09-11 Sperry Corp Ultra-high-frequency attenuator
US2673962A (en) * 1949-01-18 1954-03-30 Bell Telephone Labor Inc Mode suppression in curved waveguide bends
US2737631A (en) * 1950-05-09 1956-03-06 Int Standard Electric Corp Cavity resonators
US2679632A (en) * 1950-06-28 1954-05-25 Bell Telephone Labor Inc Directional coupler

Also Published As

Publication number Publication date
US2594978A (en) 1952-04-29
FR964835A (en) 1950-08-25

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