IL44560A - Antenna system - Google Patents

Antenna system

Info

Publication number
IL44560A
IL44560A IL44560A IL4456074A IL44560A IL 44560 A IL44560 A IL 44560A IL 44560 A IL44560 A IL 44560A IL 4456074 A IL4456074 A IL 4456074A IL 44560 A IL44560 A IL 44560A
Authority
IL
Israel
Prior art keywords
specified
antenna system
wave energy
aperture
excitations
Prior art date
Application number
IL44560A
Other versions
IL44560A0 (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 IL44560A0 publication Critical patent/IL44560A0/en
Publication of IL44560A publication Critical patent/IL44560A/en

Links

Classifications

    • 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
    • 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
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/22—Antenna units of the array energised non-uniformly in amplitude or phase, e.g. tapered array or binomial array

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Waveguide Aerials (AREA)

Claims (14)

1. An antenna system for radiating wave energy in a desired radiation pattern comprising an antenna aperture for radiating wave energy patterns in response to wave energy excitations and means for supplying a composite wave energy excitation having on said aperture an amplitude and phase distribution which is substantially the superposition of a plurality of component aperture excitations, including a reference component excitation and other component excitations having both positive and negative phase variation on said aperture with respect to said reference excitation, characterized in that said component excitations with positive phase variation have with respect to said reference excitation an average phase displacement which is a first monotonic function of said phase variation and said component excitations with negative phase variation have with respect to said reference excitation an average phase displacement which is a second monotonic function of said phase variation, all excitations having phase variation with respect to said reference excitation having the same sense of average phase displacement with respect to said reference excitation. characterized
2. An antenna system as specified in claim 1/ in that said aperture comprises means for focusing incident wave energy, and wherein said means for supplying a composite wave energy excitation comprises means for illuminating said focusing means.
3. An antenna system as specified in claim 2,characterized in that said focusing means comprises a focusing reflector.
4. An antenna system as specified in claim 2,characterized in that said focusing means comprises a transmissive focusing means.
5. An antenna system as specified in claims 2, 3 characterized or 4/in that said means for illuminating comprises a plurality of feed elements, each of said feed elements illuminating said focusing means with one of said component aperture excitations.
6. An antenna system as specified in claim 1 characterized in that said aperture comprises an array of antenna elements for radiating wave energy patterns in response to wave energy excitations, and in that said means for supplying a composite wave energy excitation comprises means for supplying wave energy to said elements.
7. An antenna system as specified in claim 6 ,characterized in that said aperture comprises a linear array of antenna elements.
8. An antenna system as specified in claim 6 , characterized in that said aperture comprises a planar array of antenna elements .
9. An antenna system as specified in claim 6 , characterized in that said aperture comprises a cylindrical array of said antenna le ents.
10. An antenna system as specified in claim 7 characterized /in that said linear array of antenna elements comprises a linear array of slots on a waveguide and said means for supplying wave energy to said elements comprises said 5 waveguide, the orientation and location of said slots on said waveguide being selected to supply said composite wave energy excitation to said slot elements.
11. An antenna system as specified in claim 10 characterized /in that said waveguide is a rectangular waveguide.
12. An antenna system as specified in claim 11 characterized /in that said slots are formed into one of the narrow walls of said waveguide.
13. An antenna system as specified in claim 11 characterized /in that said slots are formed into one of the broad walls of said waveguide.
14. An antenna system as specified in preceding characterized claims 7 thio ugh 13,/in that said component aperture exci¬ tations are uniform-amplitude, orthogonal-phase excitations. / / For the Applicants
IL44560A 1973-05-25 1974-04-03 Antenna system IL44560A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US364182A US3903524A (en) 1973-05-25 1973-05-25 Antenna system using variable phase pattern synthesis

Publications (2)

Publication Number Publication Date
IL44560A0 IL44560A0 (en) 1974-06-30
IL44560A true IL44560A (en) 1976-09-30

Family

ID=23433406

Family Applications (1)

Application Number Title Priority Date Filing Date
IL44560A IL44560A (en) 1973-05-25 1974-04-03 Antenna system

Country Status (14)

Country Link
US (1) US3903524A (en)
JP (1) JPS5542526B2 (en)
BR (1) BR7404223D0 (en)
CA (1) CA1021055A (en)
CS (1) CS229603B2 (en)
DD (1) DD113134A5 (en)
DE (1) DE2423899C2 (en)
FR (1) FR2231126B1 (en)
GB (1) GB1412569A (en)
IL (1) IL44560A (en)
IT (1) IT1010297B (en)
NL (1) NL177869C (en)
PL (1) PL94571B1 (en)
SE (1) SE389770B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4270129A (en) * 1979-01-30 1981-05-26 Sperry Corporation Apparatus and method for realizing preselected free space antenna patterns
DE3102110A1 (en) * 1981-01-23 1982-08-19 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt PHASE CONTROLLED GROUP ANTENNA
GB2111310B (en) * 1981-11-27 1985-07-03 Marconi Co Ltd Antenna array
GB2212984B (en) * 1987-11-30 1991-09-04 Plessey Telecomm Distributed antenna system
US5546095A (en) * 1994-06-02 1996-08-13 Lopez; Alfred R. Non-imaging glideslope antenna systems
JP3332329B2 (en) * 1997-06-02 2002-10-07 株式会社エヌ・ティ・ティ・ドコモ Adaptive array antenna device
US6512934B2 (en) 1997-06-02 2003-01-28 Ntt Mobile Communications Network, Inc. Adaptive array antenna
GB0005979D0 (en) * 2000-03-14 2001-03-07 Bae Sys Defence Sys Ltd An active phased array antenna assembly

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2730717A (en) * 1951-04-18 1956-01-10 Katchky Max Directional wave antenna for marine radar use
US2878472A (en) * 1954-12-14 1959-03-17 Hughes Aircraft Co High efficiency broadband antenna array
US3182325A (en) * 1960-09-21 1965-05-04 Gen Electric Array pattern modification
US2981944A (en) * 1960-12-06 1961-04-25 Gen Precision Inc Microwave navigation system
US3259902A (en) * 1961-10-04 1966-07-05 Dorne And Margolin Inc Antenna with electrically variable reflector
US3258774A (en) * 1963-12-30 1966-06-28 Gen Electric Series-fed phased array
US3526898A (en) * 1967-04-03 1970-09-01 Raytheon Co Antenna with translational and rotational compensation
US3604010A (en) * 1969-01-30 1971-09-07 Singer General Precision Antenna array system for generating shaped beams for guidance during aircraft landing
JPS524812Y2 (en) * 1971-01-26 1977-02-01

Also Published As

Publication number Publication date
FR2231126B1 (en) 1980-05-30
SE389770B (en) 1976-11-15
DE2423899C2 (en) 1986-10-09
DE2423899A1 (en) 1974-12-12
AU6580574A (en) 1975-08-21
IL44560A0 (en) 1974-06-30
CA1021055A (en) 1977-11-15
IT1010297B (en) 1977-01-10
JPS5049965A (en) 1975-05-06
BR7404223D0 (en) 1975-01-21
JPS5542526B2 (en) 1980-10-31
CS229603B2 (en) 1984-06-18
NL177869B (en) 1985-07-01
DD113134A5 (en) 1975-05-12
NL177869C (en) 1985-12-02
PL94571B1 (en) 1977-08-31
FR2231126A1 (en) 1974-12-20
GB1412569A (en) 1975-11-05
NL7407043A (en) 1974-11-27
US3903524A (en) 1975-09-02

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