GB1425142A - Antenna system for radiating multiple planar beams - Google Patents

Antenna system for radiating multiple planar beams

Info

Publication number
GB1425142A
GB1425142A GB650574A GB650574A GB1425142A GB 1425142 A GB1425142 A GB 1425142A GB 650574 A GB650574 A GB 650574A GB 650574 A GB650574 A GB 650574A GB 1425142 A GB1425142 A GB 1425142A
Authority
GB
United Kingdom
Prior art keywords
focal axis
point
feedhorns
reflector
plane
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
Application number
GB650574A
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.)
BAE Systems Aerospace Inc
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 GB1425142A publication Critical patent/GB1425142A/en
Expired legal-status Critical Current

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

Abstract

1425142 Aerials HAZELTINE CORP 13 Feb 1974 [3 April 1973] 6505/74 Heading H4A An aerial system comprises focusing means for converting an incident spherical wave into a cylindrical wave said means having a radiating surface with a focal axis and means for illuminating said focusing means with a number of wave energy patterns, having respective phase centres located at different but adjacent points near a point on said focal axis, said adjacent points being angularly displaced from each other with respect to the centre of the focusing device when viewed in the direction of said focal axis. When the focusing means is illuminated by any one of said patterns, a corresponding planar beam will be radiated in a direction which, as observed in a plane perpendicular to said focal axis, is unique to that beam. Furthermore, the radiation angle in the plane of the beam is equal to the angle subtended at the said point on the focal axis of the focusing means by the axial length thereof. As described, a parabolic cylindrical reflector 10, Fig. 1, has a focal axis 12 and an axial length 13 which subtends an angle 14 at a point 15 on said focal axis. Three feedhorns 11a, 11b, 11c are located in the vicinity of the point 15 and have components of angular displacement 16 from each other in a plane 17, which is perpendicular to the focal axis 12, when viewed from the centre 18 of the reflector 10. Each feedhorn in association with the reflector produces a planar beam which has an angular width substantially equal to 14, and which has a direction which is unique to that feedhorn when measured in the plane 17. The feedhorns may be excited sequentially, for scanning, or they may be excited simultaneously. The reflector 10 may have a circular cylindrical surface instead of a parabolic cylindrical surface, and in another embodiment it may be replaced by an array structure of the "bootlace" type. Said array structure may be arranged either for reflection or for transmission. In the case of a transmissive structure each array element comprises a receptor facing the feedhorns, an intermediate phase shifting means, and an emitter facing outwardly (Fig. 4, not shown). In a third embodiment, a cylindrical Luneberg lens 22, Fig. 3, is used, and the feedhorns are disposed on the surface thereof in the vicinity of a point on a particular focal axis 12<SP>1</SP>. An axial length 13<SP>1</SP> opposite the focal axis 12<SP>1</SP> subtends an angle at said point which is substantially equal to the angular width of the radiated beams.
GB650574A 1973-04-03 1974-02-13 Antenna system for radiating multiple planar beams Expired GB1425142A (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 (1)

Publication Number Publication Date
GB1425142A true GB1425142A (en) 1976-02-18

Family

ID=23363971

Family Applications (1)

Application Number Title Priority Date Filing Date
GB650574A Expired GB1425142A (en) 1973-04-03 1974-02-13 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)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2227610A (en) * 1989-01-31 1990-08-01 Televes Sa Dish aerial system
EP0534862A1 (en) * 1991-09-26 1993-03-31 Alcatel Espace An electronic scanning antenna
US11688941B2 (en) 2018-08-24 2023-06-27 Samsung Electronics Co., Ltd. Antenna device for beam steering and focusing

Families Citing this family (12)

* 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
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

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
NL146717B (en) * 1948-12-29 Chem Processes Inc DEVICE FOR PERFORMING AN EXOTHERMEGAS REACTION WITH CATALYST BEDS AND A HEAT EXCHANGER.
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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2227610A (en) * 1989-01-31 1990-08-01 Televes Sa Dish aerial system
EP0534862A1 (en) * 1991-09-26 1993-03-31 Alcatel Espace An electronic scanning antenna
FR2681982A1 (en) * 1991-09-26 1993-04-02 Alcatel Espace ELECTRONIC SCANNING ANTENNA.
US11688941B2 (en) 2018-08-24 2023-06-27 Samsung Electronics Co., Ltd. Antenna device for beam steering and focusing

Also Published As

Publication number Publication date
PL94574B1 (en) 1977-08-31
NL7404187A (en) 1974-10-07
US3881178A (en) 1975-04-29
IL44496A0 (en) 1974-06-30
FR2224888A1 (en) 1974-10-31
DE2415020A1 (en) 1974-10-17
SE394924B (en) 1977-07-18
FR2224888B1 (en) 1980-04-25
CA991742A (en) 1976-06-22
DD110956A5 (en) 1975-01-12
JPS586410U (en) 1983-01-17
AU6569074A (en) 1975-08-21
BR7402610D0 (en) 1974-11-05
IL44496A (en) 1976-10-31
IT1010886B (en) 1977-01-20
CS187412B2 (en) 1979-01-31
JPS49131359A (en) 1974-12-17

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee