GB1199780A - Improvements in or relating to Waveguide Filters - Google Patents

Improvements in or relating to Waveguide Filters

Info

Publication number
GB1199780A
GB1199780A GB32231/67A GB3223167A GB1199780A GB 1199780 A GB1199780 A GB 1199780A GB 32231/67 A GB32231/67 A GB 32231/67A GB 3223167 A GB3223167 A GB 3223167A GB 1199780 A GB1199780 A GB 1199780A
Authority
GB
United Kingdom
Prior art keywords
band
irises
waveguide
resonant
section
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
GB32231/67A
Inventor
Kenneth Frederick Elder
Larry Joseph Stagg
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.)
General Electric Co PLC
Original Assignee
General Electric Co 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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB32231/67A priority Critical patent/GB1199780A/en
Priority to JP43048969A priority patent/JPS4921580B1/ja
Priority to US744863A priority patent/US3544927A/en
Publication of GB1199780A publication Critical patent/GB1199780A/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

1,199,780. Filters. GENERAL ELECTRIC & ENGLISH ELECTRIC CO'S Ltd. 12 July, 1968 [13 July, 1967], No. 32231/67. Heading H1W. Some of the shunt reactances forming a band-pass filter in a waveguide are provided by irises resonant at frequencies outside the passband. The filter shown comprises half-wave resonant sections formed by two sets of posts 4, 5, 6 which provide inductive reactances shunting the rectangular waveguide 1. The filter also comprises a central section 2 bounded by irises 8, 9 which are resonant at frequencies above or below the pass-band and provide shunt reactance at frequencies within the band in known manner. The effect of the irises is to increase attenuation outside the pass band. This effect may be enhanced by reducing (as shown) or enlarging the cross-section of the central waveguide section 2. In the embodiment, each iris is formed by a thick metal plate provided with a central circular aperture into which a turning screw extends.
GB32231/67A 1967-07-13 1967-07-13 Improvements in or relating to Waveguide Filters Expired GB1199780A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB32231/67A GB1199780A (en) 1967-07-13 1967-07-13 Improvements in or relating to Waveguide Filters
JP43048969A JPS4921580B1 (en) 1967-07-13 1968-07-12
US744863A US3544927A (en) 1967-07-13 1968-07-15 Band-pass waveguide filters employing transmission type resonant irises

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB32231/67A GB1199780A (en) 1967-07-13 1967-07-13 Improvements in or relating to Waveguide Filters

Publications (1)

Publication Number Publication Date
GB1199780A true GB1199780A (en) 1970-07-22

Family

ID=10335357

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32231/67A Expired GB1199780A (en) 1967-07-13 1967-07-13 Improvements in or relating to Waveguide Filters

Country Status (3)

Country Link
US (1) US3544927A (en)
JP (1) JPS4921580B1 (en)
GB (1) GB1199780A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5085258A (en) * 1973-11-28 1975-07-09
US4028651A (en) * 1976-05-06 1977-06-07 Hughes Aircraft Company Coupled-cavity microwave filter
JPS5740563Y2 (en) * 1976-09-22 1982-09-06
US4251787A (en) * 1979-03-19 1981-02-17 Hughes Aircraft Company Adjustable coupling cavity filter
FR2512593A1 (en) * 1981-09-04 1983-03-11 Thomson Csf FILTER IN WAVES GUIDE
JPS6248101A (en) * 1985-08-27 1987-03-02 Alps Electric Co Ltd Waveguide filter
JPH073921B2 (en) * 1987-12-10 1995-01-18 日本電気株式会社 Waveguide bandpass filter
US5051713A (en) * 1988-12-30 1991-09-24 Transco Products, Inc. Waveguide filter with coupled resonators switchably coupled thereto
US5146058A (en) * 1990-12-27 1992-09-08 E. I. Du Pont De Nemours And Company Microwave resonant cavity applicator for heating articles of indefinite length
KR100399040B1 (en) * 2001-06-19 2003-09-19 엔알디 주식회사 Metal post filter assembly using non-radiative dielectric waveguide
US6864763B2 (en) * 2002-09-05 2005-03-08 Spx Corporation Tunable coupling iris and method
CN105896008B (en) * 2016-04-27 2018-09-25 南京邮电大学 A kind of equal compact bandpass filter containing transmission zero in high and low frequency
WO2021029833A1 (en) * 2019-08-09 2021-02-18 Aselsan Elektroni̇k Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ A dual-mode filter with adjustable cross iris

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2531122A (en) * 1944-06-02 1950-11-21 Gen Electric Frequency responsive protective arrangement for ultra high frequency systems
BE464876A (en) * 1945-06-02
US2585563A (en) * 1949-09-17 1952-02-12 Bell Telephone Labor Inc Wave filter
US2697209A (en) * 1951-07-13 1954-12-14 Itt Tunable band pass filter

Also Published As

Publication number Publication date
US3544927A (en) 1970-12-01
JPS4921580B1 (en) 1974-06-03

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee