GB1281564A - Improvements in or relating to waveguide filters - Google Patents

Improvements in or relating to waveguide filters

Info

Publication number
GB1281564A
GB1281564A GB1122869A GB1122869A GB1281564A GB 1281564 A GB1281564 A GB 1281564A GB 1122869 A GB1122869 A GB 1122869A GB 1122869 A GB1122869 A GB 1122869A GB 1281564 A GB1281564 A GB 1281564A
Authority
GB
United Kingdom
Prior art keywords
fingers
waveguide
stub
rectangular
stubs
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
GB1122869A
Inventor
Ian Lawrence Powell
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi 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 Marconi Co Ltd filed Critical Marconi Co Ltd
Priority to GB1122869A priority Critical patent/GB1281564A/en
Priority to SE116070A priority patent/SE363431B/xx
Priority to DE19702004730 priority patent/DE2004730A1/en
Priority to NL7001919A priority patent/NL7001919A/xx
Publication of GB1281564A publication Critical patent/GB1281564A/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
    • H01P1/209—Hollow waveguide filters comprising one or more branching arms or cavities wholly outside the main waveguide

Abstract

1281564 Waveguide filters. MAKCONI CO Ltd 13 Nov 1969 [3 March 1969] 11228/69 Heading H1W A band-stop filter comprises a H 01 rectangular waveguide 1 and at least one stub 2 shaped and dimensioned to have its cut-off frequency above the operative frequency and containing a conductive finger 2 which, together with the stub forms a slab-line resonator. The resonator(s) may be tuned capacitatively by means of screws 4 opposite the fingers, or the. fingers may be adjustable in length, e.g. telescopic. The stub(s) may be open-circuited. They may be of rectangular, circular or triangular section. The fingers may be in the form of rods of circular, rectangular or polygonal section, or they may be conical or pyramidal. The stubs may be matched to the waveguide at off-resonance frequencies by inductive posts 5. The stubs are spaced apart by an odd number of quarter wavelengths.
GB1122869A 1969-03-03 1969-03-03 Improvements in or relating to waveguide filters Expired GB1281564A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB1122869A GB1281564A (en) 1969-03-03 1969-03-03 Improvements in or relating to waveguide filters
SE116070A SE363431B (en) 1969-03-03 1970-01-29
DE19702004730 DE2004730A1 (en) 1969-03-03 1970-02-03 Waveguide bandstop filter
NL7001919A NL7001919A (en) 1969-03-03 1970-02-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1122869A GB1281564A (en) 1969-03-03 1969-03-03 Improvements in or relating to waveguide filters

Publications (1)

Publication Number Publication Date
GB1281564A true GB1281564A (en) 1972-07-12

Family

ID=9982354

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1122869A Expired GB1281564A (en) 1969-03-03 1969-03-03 Improvements in or relating to waveguide filters

Country Status (4)

Country Link
DE (1) DE2004730A1 (en)
GB (1) GB1281564A (en)
NL (1) NL7001919A (en)
SE (1) SE363431B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51132738A (en) * 1975-05-14 1976-11-18 Oki Electric Ind Co Ltd Coupling method of waveguide and cavity resonator
JPS51132739A (en) * 1975-05-14 1976-11-18 Oki Electric Ind Co Ltd Abnormal-coupling prevention use coupling-degree variable plate
EP0647975A2 (en) * 1993-10-12 1995-04-12 Matsushita Electric Industrial Co., Ltd. Dielectric resonator, dielectric notch filter and dielectric filter
WO2007039360A1 (en) 2005-09-30 2007-04-12 Ericsson Ab Waveguide bandstop filter
CN102496758A (en) * 2011-12-19 2012-06-13 江苏贝孚德通讯科技股份有限公司 Circular-chamfer double-module cavity filter
CN108808188A (en) * 2018-06-05 2018-11-13 电子科技大学中山学院 Miniaturized waveguide filter

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4124830A (en) * 1977-09-27 1978-11-07 Bell Telephone Laboratories, Incorporated Waveguide filter employing dielectric resonators
FR2565416B1 (en) * 1984-05-30 1987-06-26 Alcatel Thomson Faisceaux MAIN WAVEGUIDE FILTER LOADED BY SIDE WAVEGUIDES
FR2643829B1 (en) * 1989-03-06 1994-04-01 Prolabo WET CHEMICAL REACTION APPARATUS HAVING A CHIMNEY PROVIDED WITH A MICROWAVE PROPAGATION BARRIER

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51132738A (en) * 1975-05-14 1976-11-18 Oki Electric Ind Co Ltd Coupling method of waveguide and cavity resonator
JPS51132739A (en) * 1975-05-14 1976-11-18 Oki Electric Ind Co Ltd Abnormal-coupling prevention use coupling-degree variable plate
EP0647975A2 (en) * 1993-10-12 1995-04-12 Matsushita Electric Industrial Co., Ltd. Dielectric resonator, dielectric notch filter and dielectric filter
EP0647975A3 (en) * 1993-10-12 1995-06-28 Matsushita Electric Ind Co Ltd Dielectric resonator, dielectric notch filter and dielectric filter.
US5714919A (en) * 1993-10-12 1998-02-03 Matsushita Electric Industrial Co., Ltd. Dielectric notch resonator and filter having preadjusted degree of coupling
US6107900A (en) * 1993-10-12 2000-08-22 Matsushita Electric Industrial Co., Ltd. Dielectric resonator having a through hole mounting structure
US6222429B1 (en) 1993-10-12 2001-04-24 Matsushita Electric Industrial Co., Ltd. Dielectric resonator, dielectric notch filter, and dielectric filter with optimized resonator and cavity dimensions
US6414572B2 (en) 1993-10-12 2002-07-02 Matsushita Electric Industrial Co., Ltd. Dielectric resonator having a frequency tuning member spirally engaged with the cavity
WO2007039360A1 (en) 2005-09-30 2007-04-12 Ericsson Ab Waveguide bandstop filter
US7786828B2 (en) 2005-09-30 2010-08-31 Ericsson Ab Waveguide bandstop filter
CN102496758A (en) * 2011-12-19 2012-06-13 江苏贝孚德通讯科技股份有限公司 Circular-chamfer double-module cavity filter
CN108808188A (en) * 2018-06-05 2018-11-13 电子科技大学中山学院 Miniaturized waveguide filter

Also Published As

Publication number Publication date
NL7001919A (en) 1970-09-07
SE363431B (en) 1974-01-14
DE2004730A1 (en) 1970-09-24

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee