GB1104184A - Improvements in or relating to waveguide filters - Google Patents

Improvements in or relating to waveguide filters

Info

Publication number
GB1104184A
GB1104184A GB2154766A GB2154766A GB1104184A GB 1104184 A GB1104184 A GB 1104184A GB 2154766 A GB2154766 A GB 2154766A GB 2154766 A GB2154766 A GB 2154766A GB 1104184 A GB1104184 A GB 1104184A
Authority
GB
United Kingdom
Prior art keywords
waveguide
cavities
coupled
relating
cavity
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
GB2154766A
Inventor
George Frederick Craven
John Stuart Heeks
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB2154766A priority Critical patent/GB1104184A/en
Publication of GB1104184A publication Critical patent/GB1104184A/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
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/207—Hollow waveguide filters
    • H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure

Landscapes

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

Abstract

1,104,184. Waveguide filters. STANDARD TELEPHONES & CABLES Ltd. 16 May, 1966, No. 21547/66. Heading H1W. A waveguide filter comprises two or more waveguide cavities coupled both inductively and capacitatively so as to produce a rejection frequency. As shown, three half-wave resonant cavities 3, 4, 5 are stacked in the E-plane and coupled through common broad walls. Holes 1 and slots 2 respectively provide capacitative (X C ) and inductive (X L ) coupling, the condition for an attenuation pole being X C #1/X L. when ###/2, where # is the length of each cavity. The theory of the filter is more fully discussed in the Specification where it is shown to be equivalent to a bridged-T network. In the multi-cavity form, the cavities may provide different rejection frequencies within a desired band, or may be substantially identical.
GB2154766A 1966-05-16 1966-05-16 Improvements in or relating to waveguide filters Expired GB1104184A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2154766A GB1104184A (en) 1966-05-16 1966-05-16 Improvements in or relating to waveguide filters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2154766A GB1104184A (en) 1966-05-16 1966-05-16 Improvements in or relating to waveguide filters

Publications (1)

Publication Number Publication Date
GB1104184A true GB1104184A (en) 1968-02-21

Family

ID=10164725

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2154766A Expired GB1104184A (en) 1966-05-16 1966-05-16 Improvements in or relating to waveguide filters

Country Status (1)

Country Link
GB (1) GB1104184A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997002619A1 (en) * 1995-06-30 1997-01-23 Daimler-Benz Aerospace Ag Waveguide filter
EP2133953A1 (en) * 2008-06-13 2009-12-16 Com Dev International Limited Cavity microwave filter assembly with lossy networks

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997002619A1 (en) * 1995-06-30 1997-01-23 Daimler-Benz Aerospace Ag Waveguide filter
US6340922B1 (en) 1995-06-30 2002-01-22 Daimlerchrysler Aerospace Ag Waveguide filter with three apertures for passing transmission frequencies and blocking interference frequencies
EP2133953A1 (en) * 2008-06-13 2009-12-16 Com Dev International Limited Cavity microwave filter assembly with lossy networks
US7764146B2 (en) 2008-06-13 2010-07-27 Com Dev International Ltd. Cavity microwave filter assembly with lossy networks

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