EP1798814A3 - Antenna and antenna-feeder device - Google Patents

Antenna and antenna-feeder device Download PDF

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Publication number
EP1798814A3
EP1798814A3 EP06124095A EP06124095A EP1798814A3 EP 1798814 A3 EP1798814 A3 EP 1798814A3 EP 06124095 A EP06124095 A EP 06124095A EP 06124095 A EP06124095 A EP 06124095A EP 1798814 A3 EP1798814 A3 EP 1798814A3
Authority
EP
European Patent Office
Prior art keywords
reflector
revolution
sub
main reflector
antenna
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
EP06124095A
Other languages
German (de)
French (fr)
Other versions
EP1798814A2 (en
EP1798814B1 (en
Inventor
Jiho Ahn
Sergey Bankov
Alexander Davydov
Original Assignee
Ahn Ji-Ho
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
Priority to KR20050114512 priority Critical
Priority to KR1020060106048A priority patent/KR100802895B1/en
Application filed by Ahn Ji-Ho filed Critical Ahn Ji-Ho
Publication of EP1798814A2 publication Critical patent/EP1798814A2/en
Publication of EP1798814A3 publication Critical patent/EP1798814A3/en
Application granted granted Critical
Publication of EP1798814B1 publication Critical patent/EP1798814B1/en
Application status is Active legal-status Critical
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/12Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
    • H01Q19/13Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave the primary radiating source being a single radiating element, e.g. a dipole, a slot, a waveguide termination
    • H01Q19/134Rear-feeds; Splash plate feeds

Abstract

An antenna comprises: a main reflector being a body of revolution of arbitrary curve which axis diverges from axis of the revolution; a sub-reflector being a body of the revolution of arbitrary curve along the axis of revolution, having a circle and a vertex pointing to the main reflector and being placed between the circle and the main reflector; a radiator being located along the axis of revolution and being placed between the main reflector and the sub-reflector; and wherein the main reflector and the sub-reflector are: z m r D = n = 0 4 m = 0 6 qm n , m D m - n + 1 r n ,
Figure imga0001
z s r D = n = 0 4 m = 0 6 qs n , m D m - n + 1 r n ,
Figure imga0002

- z, r are coordinates of the main reflector and the sub-reflector measured in millimeters,
- Index m corresponds to the main reflector, index s to the sub-reflector,
- D is the main reflector diameter measured in millimeters.
EP20060124095 2005-11-29 2006-11-14 Antenna and antenna-feeder device Active EP1798814B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR20050114512 2005-11-29
KR1020060106048A KR100802895B1 (en) 2005-11-29 2006-10-31 Low profiled antenna

Publications (3)

Publication Number Publication Date
EP1798814A2 EP1798814A2 (en) 2007-06-20
EP1798814A3 true EP1798814A3 (en) 2007-07-04
EP1798814B1 EP1798814B1 (en) 2011-06-08

Family

ID=37885812

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060124095 Active EP1798814B1 (en) 2005-11-29 2006-11-14 Antenna and antenna-feeder device

Country Status (2)

Country Link
EP (1) EP1798814B1 (en)
WO (1) WO2007064092A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7799273B2 (en) 2004-05-06 2010-09-21 Smp Logic Systems Llc Manufacturing execution system for validation, quality and risk assessment and monitoring of pharmaceutical manufacturing processes
US7444197B2 (en) 2004-05-06 2008-10-28 Smp Logic Systems Llc Methods, systems, and software program for validation and monitoring of pharmaceutical manufacturing processes

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2540297A1 (en) * 1983-01-28 1984-08-03 Thomson Csf Microwave antenna having two reflectors
US6020859A (en) * 1996-09-26 2000-02-01 Kildal; Per-Simon Reflector antenna with a self-supported feed
US6211834B1 (en) * 1998-09-30 2001-04-03 Harris Corporation Multiband ring focus antenna employing shaped-geometry main reflector and diverse-geometry shaped subreflector-feeds
US20040257290A1 (en) * 2003-06-20 2004-12-23 Gothard Griffin K Multi-band ring focus antenna system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61245605A (en) * 1985-04-23 1986-10-31 Nec Corp Array type parabolic antenna for transhorizon radio communication circuit
GB2238914B (en) * 1989-11-27 1994-05-04 Matsushita Electric Works Ltd Waveguide feeding array antenna
US5351060A (en) * 1991-02-25 1994-09-27 Bayne Gerald A Antenna
US5706017A (en) * 1993-04-21 1998-01-06 California Institute Of Technology Hybrid antenna including a dielectric lens and planar feed
IT1275349B (en) * 1994-11-25 1997-08-05 Alenia Spazio Spa Antenna with elliptical beam rotatable with possibility 'reconfiguration and zoom beam
US5859619A (en) * 1996-10-22 1999-01-12 Trw Inc. Small volume dual offset reflector antenna

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2540297A1 (en) * 1983-01-28 1984-08-03 Thomson Csf Microwave antenna having two reflectors
US6020859A (en) * 1996-09-26 2000-02-01 Kildal; Per-Simon Reflector antenna with a self-supported feed
US6211834B1 (en) * 1998-09-30 2001-04-03 Harris Corporation Multiband ring focus antenna employing shaped-geometry main reflector and diverse-geometry shaped subreflector-feeds
US20040257290A1 (en) * 2003-06-20 2004-12-23 Gothard Griffin K Multi-band ring focus antenna system

Also Published As

Publication number Publication date
EP1798814A2 (en) 2007-06-20
EP1798814B1 (en) 2011-06-08
WO2007064092A1 (en) 2007-06-07

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