DE60212990D1 - Strahlformer für mehrstrahlige rundfunkantenne - Google Patents

Strahlformer für mehrstrahlige rundfunkantenne

Info

Publication number
DE60212990D1
DE60212990D1 DE60212990T DE60212990T DE60212990D1 DE 60212990 D1 DE60212990 D1 DE 60212990D1 DE 60212990 T DE60212990 T DE 60212990T DE 60212990 T DE60212990 T DE 60212990T DE 60212990 D1 DE60212990 D1 DE 60212990D1
Authority
DE
Germany
Prior art keywords
data
encoded
phase shift
beams
shift key
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 - Lifetime
Application number
DE60212990T
Other languages
English (en)
Inventor
M Howell
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.)
EMS Technologies Canada Ltd
Original Assignee
EMS Technologies Inc
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 EMS Technologies Inc filed Critical EMS Technologies Inc
Application granted granted Critical
Publication of DE60212990D1 publication Critical patent/DE60212990D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/061—Two dimensional planar arrays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radio Transmission System (AREA)
  • Waveguide Aerials (AREA)
  • Aerials With Secondary Devices (AREA)
  • Support Of Aerials (AREA)
DE60212990T 2001-11-09 2002-11-08 Strahlformer für mehrstrahlige rundfunkantenne Expired - Lifetime DE60212990D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US34463401P 2001-11-09 2001-11-09
PCT/US2002/036074 WO2003041218A1 (en) 2001-11-09 2002-11-08 Beamformer for multi-beam broadcast antenna

Publications (1)

Publication Number Publication Date
DE60212990D1 true DE60212990D1 (de) 2006-08-17

Family

ID=23351322

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60212990T Expired - Lifetime DE60212990D1 (de) 2001-11-09 2002-11-08 Strahlformer für mehrstrahlige rundfunkantenne

Country Status (6)

Country Link
US (2) US6788250B2 (de)
EP (1) EP1442499B1 (de)
AT (1) ATE332580T1 (de)
CA (1) CA2466922A1 (de)
DE (1) DE60212990D1 (de)
WO (1) WO2003041218A1 (de)

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Also Published As

Publication number Publication date
CA2466922A1 (en) 2003-05-15
EP1442499B1 (de) 2006-07-05
EP1442499A1 (de) 2004-08-04
US6788250B2 (en) 2004-09-07
US7109919B2 (en) 2006-09-19
ATE332580T1 (de) 2006-07-15
WO2003041218A1 (en) 2003-05-15
US20030090418A1 (en) 2003-05-15
US20050128141A1 (en) 2005-06-16

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Legal Events

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8332 No legal effect for de