GB1446901A - Antenna system - Google Patents

Antenna system

Info

Publication number
GB1446901A
GB1446901A GB5277873A GB5277873A GB1446901A GB 1446901 A GB1446901 A GB 1446901A GB 5277873 A GB5277873 A GB 5277873A GB 5277873 A GB5277873 A GB 5277873A GB 1446901 A GB1446901 A GB 1446901A
Authority
GB
United Kingdom
Prior art keywords
aperture
axis
array
disposed
arrays
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
GB5277873A
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric 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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of GB1446901A publication Critical patent/GB1446901A/en
Expired legal-status Critical Current

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
    • H01Q3/30—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 varying the relative phase between the radiating elements of an array
    • H01Q3/34—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 varying the relative phase between the radiating elements of an array by electrical means
    • 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
    • H01Q19/18—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 having two or more spaced reflecting surfaces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/0006—Particular feeding systems
    • H01Q21/0031—Parallel-plate fed arrays; Lens-fed arrays
    • 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
    • H01Q21/20—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path
    • 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
    • H01Q3/24—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 orientation by switching energy from one active radiating element to another, e.g. for beam switching

Landscapes

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

Abstract

1446901 Aerials; radio-navigation INTERNATIONAL STANDARD ELECTRIC CORP 14 Nov 1973 [30 Nov 1972] 52778/73 Addition to 1434986 Headings H4A and H4D An aerial system of the kind described in the parent Specification is used to feed a plurality of curved linear arrays 12 to 19, Fig. 1, which are disposed transversely across its aperture. The said feed means comprises a parallel plate waveguide arrangement 11 with a semicircular aperture having an axis Z and a radius R 0 . An array 10 of radiating elements is disposed between the plates 11, parallel to the diameter line of the aperture. The arrays 12 to 19 are disposed in respective spaced radial planes around the axis Z, and they lie on a surface of revolution defined by the equation R = R 0 coshz/R 0 where R is the radius at a distance z from the aperture along the axis Z. A respective transition energy coupling means is provided between the feed means and each linear array at the corresponding point of contact with the semicircular aperture. As described, the feed means is disposed with the axis Z horizontal and the array 10 vertical. The said array comprises slots 20, 21, 22,...which are fed by a commutating arrangement to provide a Doppler-type scan. The arrays 12 to 19 are slotted waveguides, and each is coupled at its centre to the feed means by a slot 26, Fig. 2, communicating between the waveguide and the interior space between the plates 11. The semicircular aperture is otherwise closed between adjacent ones of the linear arrays. It is stated that the invention provides beams of substantially constant width at different scanning angles and reduces misshaping of the beams at extreme scanning angles. The curved linear arrays may alternatively comprise dipole radiating elements, supplied through co-axial lines.
GB5277873A 1972-11-30 1973-11-14 Antenna system Expired GB1446901A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US31095772A 1972-11-30 1972-11-30

Publications (1)

Publication Number Publication Date
GB1446901A true GB1446901A (en) 1976-08-18

Family

ID=23204782

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5277873A Expired GB1446901A (en) 1972-11-30 1973-11-14 Antenna system

Country Status (3)

Country Link
US (1) US3774222A (en)
DE (1) DE2358242A1 (en)
GB (1) GB1446901A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3858218A (en) * 1973-04-03 1974-12-31 Hazeltine Corp Antenna system for radiating doppler coded pattern, using sequential modal excitation
US3864680A (en) * 1973-04-03 1975-02-04 Hazeltine Corp Array antenna for radiating doppler coded pattern using phase control
US4032917A (en) * 1975-08-21 1977-06-28 The Singer Company Synthesis technique for constructing cylindrical and spherical shaped wave guide arrays to form pencil beams
US5241323A (en) * 1990-12-13 1993-08-31 Hughes Aircraft Company Shaped beams from uniformly illuminated and phased array antennas
JP2016058790A (en) * 2014-09-05 2016-04-21 パナソニック株式会社 Array antenna and device using the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3697998A (en) * 1970-10-05 1972-10-10 Sperry Rand Corp Multiple beam array antenna

Also Published As

Publication number Publication date
US3774222A (en) 1973-11-20
DE2358242A1 (en) 1974-06-06
AU6292873A (en) 1975-05-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee