IL44496A - Antenna system for radiating multiple planar beams - Google Patents

Antenna system for radiating multiple planar beams

Info

Publication number
IL44496A
IL44496A IL44496A IL4449674A IL44496A IL 44496 A IL44496 A IL 44496A IL 44496 A IL44496 A IL 44496A IL 4449674 A IL4449674 A IL 4449674A IL 44496 A IL44496 A IL 44496A
Authority
IL
Israel
Prior art keywords
antenna system
focusing
specified
wave energy
reflecting
Prior art date
Application number
IL44496A
Other versions
IL44496A0 (en
Original Assignee
Hazeltine Corp
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 Hazeltine Corp filed Critical Hazeltine Corp
Publication of IL44496A0 publication Critical patent/IL44496A0/en
Publication of IL44496A publication Critical patent/IL44496A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • G01S1/08—Systems for determining direction or position line
    • G01S1/38—Systems for determining direction or position line using comparison of [1] the phase of the envelope of the change of frequency, due to Doppler effect, of the signal transmitted by an antenna moving, or appearing to move, in a cyclic path with [2] the phase of a reference signal, the frequency of this reference signal being synchronised with that of the cyclic movement, or apparent cyclic movement, of the antenna
    • G01S1/40—Systems for determining direction or position line using comparison of [1] the phase of the envelope of the change of frequency, due to Doppler effect, of the signal transmitted by an antenna moving, or appearing to move, in a cyclic path with [2] the phase of a reference signal, the frequency of this reference signal being synchronised with that of the cyclic movement, or apparent cyclic movement, of the antenna the apparent movement of the antenna being produced by cyclic sequential energisation of fixed antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/06—Combinations 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 refracting or diffracting devices, e.g. lens
    • H01Q19/062—Combinations 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 refracting or diffracting devices, e.g. lens for focusing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H01Q25/007—Antennas or antenna systems providing at least two radiating patterns using two or more primary active elements in the focal region of a focusing device

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Aerials With Secondary Devices (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Claims (11)

1. An antenna system for radiating a plurality of planar beams and having a desired radiation angle in the plane of each beam comprising means for cylindrically focusing incident wave energy and means for illuminating said focusing means with wave energy patterns, characterize 5 in that said focusing . means has a radiating surface whose a length subtends an angle, viewed from a point on the. focal a of said focusing means, which is substantially equal to said desired radiation angle, and said illuminating is arranged t illuminate said focusing means with a number of wave energy 0 patterns equal to the number of planar beams desired, each o said patterns having a phase center located at a different selected point in space, in the vicinity of said point on sa focal axis, whereby when said focusing means is illuminated any one of said patterns, a corresponding planar beam will b 5 radiated in a direction which is unique to that beam, when observed in a plane perpendicular to said focal axis, and having said desired radiation angle in the plane of that bea
2. An antenna system as specified in claim 1, characterized in that said means for illuminating said focus means comprises a number of feed elements, equal to the numb of planar beams desired and each for illuminating said 5 focusing means with wave energy pattern, said feed elements being located in the vicinity of said point on said focal in axis and having/a plane which is perpendicular to said focal axis a component of angular displacement from each other when viewed from the center of said focusing means.
3. An antenna system as specified in claim 1 or 2, characterized in that said means for cylindrically focusing comprises reflecting means for cylindrically focusing incident wave energy, said reflecting means having an axial length which subtends an angle, viewed from a point on the focal axis of said reflecting means, which is substantially equal to said desired radiation angle.
4. An antenna system as specified in claim 3, characterized in that said reflecting means is a parabolic cylindrical surface.
5. An antenna system as specified in claim 3, characterized in that said reflecting means is a circular cylindrical surface.
6. An antenna system as specified in claim 3, characterized in that said reflecting means is an array of reflecting elements.
7. An antenna system as specified in claim 3,4,5 or 6, characterized in that said feed elements are waveguide feed horns located in the vicinity of said point on said focal axis and having in a plane which is perpendicular to said focal axis substantially equal components of angular displacement from each other, viewed from the center of said reflecting means .
8. An antenna system as specified in claim 1 or 2, characterized in that said means for cylindrically focusing comprises transmissive means for cylindrically focusing incident wave energy.
9. An antenna system as specified in claim 8, characterized in that said transmissive means is a lens struc ture having a wave energy propagation velocity which is different from the propagation velocity of the surrounding medium.
10. An antenna system as specified in claim 8 or 9, characterized in that said transmissive means is a cylindrical Luneberg lens.
11. An antenna system as specified in claim 8, characterized in that said transmissive means comprises a first array of antenna elements for receiving said incident wave energy, means for shifting the phase of the wave energy received by each of the elements of said first array by a selected amount and a second array of antenna elements for radiating said phase shifted wave energy.
IL44496A 1973-04-03 1974-03-26 Antenna system for radiating multiple planar beams IL44496A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US347505A US3881178A (en) 1973-04-03 1973-04-03 Antenna system for radiating multiple planar beams

Publications (2)

Publication Number Publication Date
IL44496A0 IL44496A0 (en) 1974-06-30
IL44496A true IL44496A (en) 1976-10-31

Family

ID=23363971

Family Applications (1)

Application Number Title Priority Date Filing Date
IL44496A IL44496A (en) 1973-04-03 1974-03-26 Antenna system for radiating multiple planar beams

Country Status (14)

Country Link
US (1) US3881178A (en)
JP (2) JPS49131359A (en)
BR (1) BR7402610D0 (en)
CA (1) CA991742A (en)
CS (1) CS187412B2 (en)
DD (1) DD110956A5 (en)
DE (1) DE2415020A1 (en)
FR (1) FR2224888B1 (en)
GB (1) GB1425142A (en)
IL (1) IL44496A (en)
IT (1) IT1010886B (en)
NL (1) NL7404187A (en)
PL (1) PL94574B1 (en)
SE (1) SE394924B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4041501A (en) * 1975-07-10 1977-08-09 Hazeltine Corporation Limited scan array antenna systems with sharp cutoff of element pattern
DE2632615C3 (en) * 1976-07-20 1979-08-30 Siemens Ag, 1000 Berlin Und 8000 Muenchen Satellite communication system
US4439773A (en) * 1982-01-11 1984-03-27 Bell Telephone Laboratories, Incorporated Compact scanning beam antenna feed arrangement
US4482897A (en) * 1982-06-28 1984-11-13 At&T Bell Laboratories Multibeam segmented reflector antennas
JPS59174830U (en) * 1983-05-11 1984-11-22 福山　隆吉 Moxibustion device
ES1008936Y (en) * 1989-01-31 1989-12-16 Televes S.A. SUPPORT FOR MULTISATELLITE PARABOLIC ANTENNA FEEDERS.
FR2681982B1 (en) * 1991-09-26 1993-11-19 Alcatel Espace ELECTRONIC SCANNING ANTENNA.
FR2719948B1 (en) * 1994-05-10 1996-07-19 Dassault Electronique Multi-beam antenna for receiving microwaves from several satellites.
US5995056A (en) * 1997-09-18 1999-11-30 United States Of America As Represented By The Secretary Of The Navy Wide band tem fed phased array reflector antenna
DE69907384T2 (en) * 1998-12-24 2004-02-26 Murata Manufacturing Co., Ltd., Nagaokakyo Antenna with a movable radiator and dielectric lens
US6208312B1 (en) * 2000-03-15 2001-03-27 Harry J. Gould Multi-feed multi-band antenna
FI20070774L (en) * 2007-10-16 2009-04-17 Teknillinen Korkeakoulu Anti-reflection lens
DE102008011350A1 (en) * 2008-02-27 2009-09-03 Loeffler Technology Gmbh Apparatus and method for real-time detection of electromagnetic THz radiation
US8558734B1 (en) * 2009-07-22 2013-10-15 Gregory Hubert Piesinger Three dimensional radar antenna method and apparatus
RU2688949C1 (en) 2018-08-24 2019-05-23 Самсунг Электроникс Ко., Лтд. Millimeter range antenna and antenna control method

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2437281A (en) * 1944-07-19 1948-03-09 Sperry Corp High-frequency radiant energy apparatus
NL83707C (en) * 1948-12-29
US3016531A (en) * 1955-03-14 1962-01-09 Sperry Rand Corp Antenna distribution system
US3267472A (en) * 1960-07-20 1966-08-16 Litton Systems Inc Variable aperture antenna system
US3170158A (en) * 1963-05-08 1965-02-16 Rotman Walter Multiple beam radar antenna system
US3317912A (en) * 1963-07-29 1967-05-02 Kenneth S Kelleher Plural concentric parabolic antenna for omnidirectional coverage
US3341151A (en) * 1965-07-23 1967-09-12 Kampinsky Abe Apparatus providing a directive field pattern and attitude sensing of a spin stabilized satellite
FR1460030A (en) * 1965-10-14 1966-06-17 Thomson Houston Comp Francaise Developments in electronic scanning antennas
US3414904A (en) * 1966-05-16 1968-12-03 Hughes Aircraft Co Multiple reflector antenna
US3406401A (en) * 1966-08-25 1968-10-15 Bell Telephone Labor Inc Communication satellite system
US3775769A (en) * 1971-10-04 1973-11-27 Raytheon Co Phased array system

Also Published As

Publication number Publication date
CS187412B2 (en) 1979-01-31
PL94574B1 (en) 1977-08-31
US3881178A (en) 1975-04-29
IL44496A0 (en) 1974-06-30
FR2224888A1 (en) 1974-10-31
BR7402610D0 (en) 1974-11-05
JPS49131359A (en) 1974-12-17
JPS586410U (en) 1983-01-17
DE2415020A1 (en) 1974-10-17
GB1425142A (en) 1976-02-18
NL7404187A (en) 1974-10-07
CA991742A (en) 1976-06-22
IT1010886B (en) 1977-01-20
AU6569074A (en) 1975-08-21
SE394924B (en) 1977-07-18
DD110956A5 (en) 1975-01-12
FR2224888B1 (en) 1980-04-25

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