FR2246089A1 - Duplexer for EHF telephone transmission - separates M.M. waves into two sub bands using single circular waveguide and diaphragm coupling - Google Patents

Duplexer for EHF telephone transmission - separates M.M. waves into two sub bands using single circular waveguide and diaphragm coupling

Info

Publication number
FR2246089A1
FR2246089A1 FR7334997A FR7334997A FR2246089A1 FR 2246089 A1 FR2246089 A1 FR 2246089A1 FR 7334997 A FR7334997 A FR 7334997A FR 7334997 A FR7334997 A FR 7334997A FR 2246089 A1 FR2246089 A1 FR 2246089A1
Authority
FR
France
Prior art keywords
duplexer
guide
single circular
ehf
waves
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.)
Granted
Application number
FR7334997A
Other languages
French (fr)
Other versions
FR2246089B1 (en
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.)
Alcatel CIT SA
Original Assignee
Alcatel CIT SA
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 Alcatel CIT SA filed Critical Alcatel CIT SA
Priority to FR7334997A priority Critical patent/FR2246089A1/en
Publication of FR2246089A1 publication Critical patent/FR2246089A1/en
Application granted granted Critical
Publication of FR2246089B1 publication Critical patent/FR2246089B1/fr
Granted 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
    • H01P1/2138—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies using hollow waveguide filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/16—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion
    • H01P1/163—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion specifically adapted for selection or promotion of the TE01 circular-electric mode

Landscapes

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

Abstract

Duplexing arrangement is intended primarily for telephonic communication systems where multiplexing of very short (m.m.) wavelengths are employed. The design aims to overcome the critical positioning problems of coupling holes normally employed where two circular waveguides meet tangentially. The duplexer splits the frequency band; 31 to 60GHz into two sub-bands about a critical frequency, Fc, 46GHz. The input frequency arrives in T EPSILON o1 mode in a circular cross section waveguide into which merges tangentially a low frequency output semicircular waveguide. The two guides continue together as a single circular guide separated by a longitudinal diaphragm pierced by appropriate coupling holes. Construction of this guide provides a pass band filter connected to a further coupling section outputting the high frequency band via a further semicircular guide.
FR7334997A 1973-10-01 1973-10-01 Duplexer for EHF telephone transmission - separates M.M. waves into two sub bands using single circular waveguide and diaphragm coupling Granted FR2246089A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7334997A FR2246089A1 (en) 1973-10-01 1973-10-01 Duplexer for EHF telephone transmission - separates M.M. waves into two sub bands using single circular waveguide and diaphragm coupling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7334997A FR2246089A1 (en) 1973-10-01 1973-10-01 Duplexer for EHF telephone transmission - separates M.M. waves into two sub bands using single circular waveguide and diaphragm coupling

Publications (2)

Publication Number Publication Date
FR2246089A1 true FR2246089A1 (en) 1975-04-25
FR2246089B1 FR2246089B1 (en) 1976-06-18

Family

ID=9125750

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7334997A Granted FR2246089A1 (en) 1973-10-01 1973-10-01 Duplexer for EHF telephone transmission - separates M.M. waves into two sub bands using single circular waveguide and diaphragm coupling

Country Status (1)

Country Link
FR (1) FR2246089A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2731700A1 (en) * 1976-07-20 1978-02-16 Cit Alcatel MILLIMETER SHAFT MULTIPLEXER
FR2538958A1 (en) * 1982-12-30 1984-07-06 Thomson Csf Microwave filter with tunable cutoff frequency and its application to the microwave mixer and to the radar operating in diversity mode

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2731700A1 (en) * 1976-07-20 1978-02-16 Cit Alcatel MILLIMETER SHAFT MULTIPLEXER
FR2538958A1 (en) * 1982-12-30 1984-07-06 Thomson Csf Microwave filter with tunable cutoff frequency and its application to the microwave mixer and to the radar operating in diversity mode

Also Published As

Publication number Publication date
FR2246089B1 (en) 1976-06-18

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Legal Events

Date Code Title Description
ST Notification of lapse