EP0954048A3 - Bandpass filter - Google Patents

Bandpass filter Download PDF

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Publication number
EP0954048A3
EP0954048A3 EP99102607A EP99102607A EP0954048A3 EP 0954048 A3 EP0954048 A3 EP 0954048A3 EP 99102607 A EP99102607 A EP 99102607A EP 99102607 A EP99102607 A EP 99102607A EP 0954048 A3 EP0954048 A3 EP 0954048A3
Authority
EP
European Patent Office
Prior art keywords
inductive coupling
bandpass filter
cavity resonator
coupled
narrow sides
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.)
Withdrawn
Application number
EP99102607A
Other languages
German (de)
French (fr)
Other versions
EP0954048A2 (en
Inventor
Konstantin Beis
Werner Speldrich
Uwe Rosenberg
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.)
Telent GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0954048A2 publication Critical patent/EP0954048A2/en
Publication of EP0954048A3 publication Critical patent/EP0954048A3/en
Withdrawn legal-status Critical Current

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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

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

Abstract

Ein wenig aufwendiges Bandpaß-Filter mit guten Selektionseigenschaften besteht darin, daß zwei rechteckige Hohlraumresonatoren (1, 3) mit einer ihrer Schmalseiten über jeweils eine induktive Koppelblende (12, 23) an eine Breitseite eines dritten rechteckigen Hohlraumresonators (2) angekoppelt sind und daß zwischen benachbarten Breitseiten der beiden mit dem dritten Hohlraumresonator (2) gekoppelten Hohlraumresonatoren (1, 3) eine induktive Koppelblende (13) in unmittelbarer Nähe ihrer Schmalseiten, in denen sich die induktiven Koppelblenden (12, 23) zum dritten Hohlraumresonator (2) befinden, angeordnet ist.

Figure 00000001
A less expensive bandpass filter with good selection properties consists in that two rectangular cavity resonators (1, 3) are coupled with one of their narrow sides via an inductive coupling aperture (12, 23) to a broad side of a third rectangular cavity resonator (2) and that between Adjacent broad sides of the two cavity resonators (1, 3) coupled to the third cavity resonator (2) are arranged an inductive coupling aperture (13) in the immediate vicinity of their narrow sides, in which the inductive coupling apertures (12, 23) to the third cavity resonator (2) are located is.
Figure 00000001
EP99102607A 1998-04-28 1999-02-11 Bandpass filter Withdrawn EP0954048A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1998118947 DE19818947C1 (en) 1998-04-28 1998-04-28 Bandpass filter
DE19818947 1998-04-28

Publications (2)

Publication Number Publication Date
EP0954048A2 EP0954048A2 (en) 1999-11-03
EP0954048A3 true EP0954048A3 (en) 2000-05-24

Family

ID=7866039

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99102607A Withdrawn EP0954048A3 (en) 1998-04-28 1999-02-11 Bandpass filter

Country Status (2)

Country Link
EP (1) EP0954048A3 (en)
DE (1) DE19818947C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5043134B2 (en) * 2010-01-18 2012-10-10 島田理化工業株式会社 Waveguide connection method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0075498A1 (en) * 1981-09-04 1983-03-30 Thomson-Csf Cavity filter with coupling between non-adjacent cavities

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0075498A1 (en) * 1981-09-04 1983-03-30 Thomson-Csf Cavity filter with coupling between non-adjacent cavities

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
A.E. ATIA ET AL.: "GENERAL TE011-MODE WAVEGUIDE BANDPASS FILTERS", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES., vol. 24, no. 10, October 1976 (1976-10-01), IEEE INC. NEW YORK., US, pages 640 - 648, XP002134034, ISSN: 0018-9480 *
WILLIAMS A E: "AN ODD ORDER ELLIPTIC FUNCTION NARROW-BANDPASS MICROWAVE FILTER", PROCEEDINGS OF THE EUROPEAN MICROWAVE CONFERENCE,GB,SEVENOAKS, MICROWAVE EXHIBITIONS, vol. CONF. 8, 4 September 1978 (1978-09-04) - 8 September 1978 (1978-09-08), ROME (IT), pages 329 - 333, XP002014111 *

Also Published As

Publication number Publication date
DE19818947C1 (en) 1999-05-06
EP0954048A2 (en) 1999-11-03

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