EP0235846A3 - Dual polarization microwave receiver for direct reception from a broadcasting satellite - Google Patents

Dual polarization microwave receiver for direct reception from a broadcasting satellite Download PDF

Info

Publication number
EP0235846A3
EP0235846A3 EP87200231A EP87200231A EP0235846A3 EP 0235846 A3 EP0235846 A3 EP 0235846A3 EP 87200231 A EP87200231 A EP 87200231A EP 87200231 A EP87200231 A EP 87200231A EP 0235846 A3 EP0235846 A3 EP 0235846A3
Authority
EP
European Patent Office
Prior art keywords
dual polarization
broadcasting satellite
microwave receiver
direct reception
polarization microwave
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Withdrawn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
EP87200231A
Other languages
German (de)
French (fr)
Other versions
EP0235846A2 (en
Inventor
Paolo Bonato
Andrea Giavarini
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.)
Siemens Telecomunicazioni SpA
Original Assignee
Siemens Telecomunicazioni SpA
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 Siemens Telecomunicazioni SpA filed Critical Siemens Telecomunicazioni SpA
Publication of EP0235846A2 publication Critical patent/EP0235846A2/en
Publication of EP0235846A3 publication Critical patent/EP0235846A3/en
Withdrawn legal-status Critical Current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
    • H01P1/165—Auxiliary devices for rotating the plane of polarisation
    • H01P1/17—Auxiliary devices for rotating the plane of polarisation for producing a continuously rotating polarisation, e.g. circular polarisation

Landscapes

  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Waveguide Switches, Polarizers, And Phase Shifters (AREA)

Abstract

The receiver combines a feed, a polarizer and a decoupler of the orthogonal modes in a single wave-guide structure (1) with the internal cross section increasing toward the ends. The minimum and maximum dimensions of the cross sections are selected in such a manner as to describe a middle cutoff frequency of the guided structure (1) greater than the local oscillation frequency and the image band frequencies and smaller than the signal radio frequencies. Two RF-IF converters (2,3) are associated with said structure (1).
EP87200231A 1986-03-03 1987-02-13 Dual polarization microwave receiver for direct reception from a broadcasting satellite Withdrawn EP0235846A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1960886 1986-03-03
IT19608/86A IT1188403B (en) 1986-03-03 1986-03-03 DOUBLE POLARIZATION MICROWAVE RECEIVER FOR DIRECT RADIO DIFFUSION RECEIVED FROM SATELLITE

Publications (2)

Publication Number Publication Date
EP0235846A2 EP0235846A2 (en) 1987-09-09
EP0235846A3 true EP0235846A3 (en) 1988-09-14

Family

ID=11159502

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87200231A Withdrawn EP0235846A3 (en) 1986-03-03 1987-02-13 Dual polarization microwave receiver for direct reception from a broadcasting satellite

Country Status (2)

Country Link
EP (1) EP0235846A3 (en)
IT (1) IT1188403B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0336243U (en) * 1989-08-22 1991-04-09
FR2664748A1 (en) * 1990-07-16 1992-01-17 Tonna Electronique UHF horn-head assembly

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2329555A1 (en) * 1973-06-09 1974-12-19 Philips Patentverwaltung HIGH-PASS FILTER FOR THE GHZ RANGE
EP0059927A1 (en) * 1981-03-07 1982-09-15 ANT Nachrichtentechnik GmbH Microwave receiving arrangement
EP0060762A1 (en) * 1981-03-18 1982-09-22 Portenseigne Receiving system for orthogonally polarized HF signals
GB2117980A (en) * 1982-03-25 1983-10-19 Italiana Esercizio Telefon Dual polarisation signal waveguide device
EP0122391A1 (en) * 1983-02-17 1984-10-24 Siemens Aktiengesellschaft Broadband microwave radiator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2329555A1 (en) * 1973-06-09 1974-12-19 Philips Patentverwaltung HIGH-PASS FILTER FOR THE GHZ RANGE
EP0059927A1 (en) * 1981-03-07 1982-09-15 ANT Nachrichtentechnik GmbH Microwave receiving arrangement
EP0060762A1 (en) * 1981-03-18 1982-09-22 Portenseigne Receiving system for orthogonally polarized HF signals
GB2117980A (en) * 1982-03-25 1983-10-19 Italiana Esercizio Telefon Dual polarisation signal waveguide device
EP0122391A1 (en) * 1983-02-17 1984-10-24 Siemens Aktiengesellschaft Broadband microwave radiator

Also Published As

Publication number Publication date
EP0235846A2 (en) 1987-09-09
IT8619608A1 (en) 1987-09-03
IT1188403B (en) 1988-01-14
IT8619608A0 (en) 1986-03-03

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Inventor name: BONATO, PAOLO

Inventor name: GIAVARINI, ANDREA