CA2078321C - Systeme de multiplexage pour plusieurs canaux de transmission de signaux electromagnetiques - Google Patents

Systeme de multiplexage pour plusieurs canaux de transmission de signaux electromagnetiques

Info

Publication number
CA2078321C
CA2078321C CA 2078321 CA2078321A CA2078321C CA 2078321 C CA2078321 C CA 2078321C CA 2078321 CA2078321 CA 2078321 CA 2078321 A CA2078321 A CA 2078321A CA 2078321 C CA2078321 C CA 2078321C
Authority
CA
Canada
Prior art keywords
waveguide
symmetric
channel signals
filter
channel
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 - Fee Related
Application number
CA 2078321
Other languages
English (en)
Other versions
CA2078321A1 (fr
Inventor
Robert C. Perpall
Ross A. Stramler
Joe Hall
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.)
DirecTV Group Inc
Original Assignee
Hughes Aircraft Co
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 Hughes Aircraft Co filed Critical Hughes Aircraft Co
Publication of CA2078321A1 publication Critical patent/CA2078321A1/fr
Application granted granted Critical
Publication of CA2078321C publication Critical patent/CA2078321C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
    • H01P1/2131—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies with combining or separating polarisations

Landscapes

  • Control Of Motors That Do Not Use Commutators (AREA)
  • Waveguide Switches, Polarizers, And Phase Shifters (AREA)
  • Radio Relay Systems (AREA)
  • Waveguide Aerials (AREA)
CA 2078321 1991-12-23 1992-09-15 Systeme de multiplexage pour plusieurs canaux de transmission de signaux electromagnetiques Expired - Fee Related CA2078321C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US81163991A 1991-12-23 1991-12-23
US811,639 1991-12-23

Publications (2)

Publication Number Publication Date
CA2078321A1 CA2078321A1 (fr) 1993-06-24
CA2078321C true CA2078321C (fr) 1998-04-07

Family

ID=25207119

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2078321 Expired - Fee Related CA2078321C (fr) 1991-12-23 1992-09-15 Systeme de multiplexage pour plusieurs canaux de transmission de signaux electromagnetiques

Country Status (4)

Country Link
EP (1) EP0548819B1 (fr)
JP (1) JPH0795644B2 (fr)
CA (1) CA2078321C (fr)
DE (1) DE69209257T2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6204810B1 (en) 1997-05-09 2001-03-20 Smith Technology Development, Llc Communications system
WO2000026986A1 (fr) * 1998-11-02 2000-05-11 Jury Vyacheslavovich Kislyakov Multiplexeur

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1079880A (fr) * 1953-03-23 1954-12-03 Coupleurs directionnels résonnants
US2812497A (en) * 1955-03-16 1957-11-05 Sperry Rand Corp Circularly polarized microwave coupler
US3543189A (en) * 1969-01-27 1970-11-24 Bell Telephone Labor Inc Constant-impedance channel-dropping filter

Also Published As

Publication number Publication date
CA2078321A1 (fr) 1993-06-24
EP0548819A1 (fr) 1993-06-30
EP0548819B1 (fr) 1996-03-20
JPH0795644B2 (ja) 1995-10-11
DE69209257T2 (de) 1996-11-21
DE69209257D1 (de) 1996-04-25
JPH06204709A (ja) 1994-07-22

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed