EP0029276B1 - Mikrowellenfilter - Google Patents

Mikrowellenfilter Download PDF

Info

Publication number
EP0029276B1
EP0029276B1 EP80201088A EP80201088A EP0029276B1 EP 0029276 B1 EP0029276 B1 EP 0029276B1 EP 80201088 A EP80201088 A EP 80201088A EP 80201088 A EP80201088 A EP 80201088A EP 0029276 B1 EP0029276 B1 EP 0029276B1
Authority
EP
European Patent Office
Prior art keywords
band
partition
slots
waveguide
filter
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
EP80201088A
Other languages
English (en)
French (fr)
Other versions
EP0029276A1 (de
Inventor
Martinus Barend Hulsbergen
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.)
Staat der Nederlanden (Staatsbedrijf der Posterijen Telegrafie en Telefonie)
Original Assignee
Staat der Nederlanden (Staatsbedrijf der Posterijen Telegrafie en Telefonie)
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 Staat der Nederlanden (Staatsbedrijf der Posterijen Telegrafie en Telefonie) filed Critical Staat der Nederlanden (Staatsbedrijf der Posterijen Telegrafie en Telefonie)
Priority to AT80201088T priority Critical patent/ATE7437T1/de
Publication of EP0029276A1 publication Critical patent/EP0029276A1/de
Application granted granted Critical
Publication of EP0029276B1 publication Critical patent/EP0029276B1/de
Expired 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
    • H01P1/209—Hollow waveguide filters comprising one or more branching arms or cavities wholly outside the main waveguide
    • 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
    • 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
    • H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
    • H01P1/2138—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies using hollow waveguide filters

Definitions

  • the filter according to the invention can often be a very good substitute for the band-stop filters of the conventional type.
  • the use of the filter according to the invention disposes of the drawbacks attended with the conventional filters.
  • a very striking aspect is that the cost of production is considerably lower.
  • the filter according to the invention can be utilized in a special way when the transverse partition forms the wall between two coupled waveguides. Stopping the undesirable overflow of signals can now take place in the coupling area of the connection.
  • the output system according to Fig. 1 is part of the waveguide circuit used for Orbital Test Satellite (OTS) experiments.
  • the wall of a round waveguide 1 is provided with four slot combinations 2, to which the waveguides 3 are connected, which in their turn are connected to a receiving system.
  • One end 4 of the waveguide 1 is connected to an aerial; the other end 5 is connected to a transmitter.
  • the part 6 between the slot combinations 2 and the end 5 is made narrow and forms a short-circuit for the received signals.
  • the filter according to the invention is, in addition to its better properties, much more attractive than the usual band filters with resonant cavities, which are difficult to make.

Landscapes

  • Control Of Motors That Do Not Use Commutators (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)

Claims (2)

1. Mikrowellenfilter, das durch eine in einem Wellenleiter (3) angebrachte Querzwischenwand (7 oder 8) gebildet ist, welche mit einigen parallelen schlitzförmigen Oeffnungen (2) unterschiedlicher Längen versehen ist, dadurch gekennzeichnet, dass die Länge des längsten Schlitzes im wesentlichen gleich der halben Wellenlänge der Mittenfrequenz im Durchlassbereich ist, und dass die Längen der anderen Schlitze (10, 11, 13, 14) für jede Zwischenwand (7 oder 8) durch die grösstmögliche Dämpfung im Sperrbereicht bestimmt sind (Fig. 6).
2. Mikrowellenleiter nach Anspruch 1, dadurch gekennzeichnet, dass mindestens zwei Zwischenwände (7, 8) hintereinander angebracht sind.
EP80201088A 1979-11-15 1980-11-14 Mikrowellenfilter Expired EP0029276B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80201088T ATE7437T1 (de) 1979-11-15 1980-11-14 Mikrowellenfilter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7908374 1979-11-15
NLAANVRAGE7908374,A NL181064C (nl) 1979-11-15 1979-11-15 Microgolffilter.

Publications (2)

Publication Number Publication Date
EP0029276A1 EP0029276A1 (de) 1981-05-27
EP0029276B1 true EP0029276B1 (de) 1984-05-09

Family

ID=19834190

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80201088A Expired EP0029276B1 (de) 1979-11-15 1980-11-14 Mikrowellenfilter

Country Status (4)

Country Link
EP (1) EP0029276B1 (de)
AT (1) ATE7437T1 (de)
DE (1) DE3067782D1 (de)
NL (1) NL181064C (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4008770A1 (de) * 1990-03-19 1991-09-26 Ant Nachrichtentech Hohlraumresonator mit einer te wellentyp-ankopplung

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2487587A1 (fr) * 1980-07-22 1982-01-29 Thomson Csf Filtre passe-bande hyperfrequence realise en guide d'ondes
FR2577719B1 (fr) * 1985-02-15 1987-05-29 Alcatel Espace Duplexeur de polarisations
US5087440A (en) * 1989-07-31 1992-02-11 Salutar, Inc. Heterocyclic derivatives of DTPA used for magnetic resonance imaging
DE19523869A1 (de) * 1995-06-30 1997-01-02 Daimler Benz Aerospace Ag Hohlleiterfilter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB649301A (en) * 1948-06-29 1951-01-24 Mini Of Supply Improvements in or relating to ultra high frequency radio apparatus employing wave guides
GB773527A (en) * 1953-10-09 1957-04-24 British Thomson Houston Co Ltd Improvements in and relating to waveguides
FR2259450B1 (de) * 1974-01-25 1979-07-06 Cit Alcatel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4008770A1 (de) * 1990-03-19 1991-09-26 Ant Nachrichtentech Hohlraumresonator mit einer te wellentyp-ankopplung

Also Published As

Publication number Publication date
NL181064C (nl) 1987-06-01
ATE7437T1 (de) 1984-05-15
EP0029276A1 (de) 1981-05-27
DE3067782D1 (en) 1984-06-14
NL181064B (nl) 1987-01-02
NL7908374A (nl) 1981-06-16

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