GB1247242A - Cylindrical array antenna system with electronic scanning - Google Patents

Cylindrical array antenna system with electronic scanning

Info

Publication number
GB1247242A
GB1247242A GB9941/69A GB994169A GB1247242A GB 1247242 A GB1247242 A GB 1247242A GB 9941/69 A GB9941/69 A GB 9941/69A GB 994169 A GB994169 A GB 994169A GB 1247242 A GB1247242 A GB 1247242A
Authority
GB
United Kingdom
Prior art keywords
columns
column
modulator
phase
array
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
GB9941/69A
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 GB1247242A publication Critical patent/GB1247242A/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
    • 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
    • G01S1/44—Rotating or oscillating beam beacons defining directions in the plane of rotation or oscillation
    • G01S1/46—Broad-beam systems producing at a receiver a substantially continuous sinusoidal envelope signal of the carrier wave of the beam, the phase angle of which is dependent upon the angle between the direction of the receiver from the beacon and a reference direction from the beacon, e.g. cardioid system
    • G01S1/48—Broad-beam systems producing at a receiver a substantially continuous sinusoidal envelope signal of the carrier wave of the beam, the phase angle of which is dependent upon the angle between the direction of the receiver from the beacon and a reference direction from the beacon, e.g. cardioid system wherein the phase angle of the direction-dependent envelope signal is a multiple of the direction angle, e.g. for "fine" bearing indication TACAN
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/06—Waveguide mouths
    • 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

Landscapes

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

Abstract

1,247,242. Aerials. INTERNATIONAL STANDARD ELECTRIC CORP. 25 Feb., 1969 [26 Feb., 1968], No. 9941/69. Heading H4A. An aerial system providing a rotating radiation pattern of pre-determined shape comprises an array of radiating elements which are arranged in rows and columns, said array having a curved aperture at least along the rows. Each column of elements has an individual feed from a common source, each feed comprising a means for modulating the amplitude and phase of the energy it supplies. As described, in an application to a TACAN radio-navigation ground station, columns of open-ended rectangular waveguide sections or cavity backed slots are arranged around an axis 100, Fig. 1, to form a cylindrical array. Adjacent columns are staggered to reduce the circumferential pitch. A structure comprising end bells 101, which are joined by rod members, supports the columns of elements, and a curved planar skin and a radome 102 are provided. A wedgeshaped matching piece 202, Fig. 3, is fitted in each radiator, and a typical column feed 204 feeds input probes within the eight radiators shown through coaxial connections 311 from the output of a modulator 309, of the PIN diode type. Unmodulated R.F. energy from a generator 313 is fed by a line 312 to a divider 301 which supplies equal amounts of power to the column modulators by lines 306 &c. Discrete control signals are also supplied from a unit 302 to the modulators by lines 303 &c. Said modulator control signals comprise 15 Hz and 135 Hz components, the phase of each component varying progressively from column to column around the cylindrical array. An aerial radiation pattern having nine lobes and rotating in azimuth at 15 r.p.m. is produced. The vertical radiation pattern may be controlled by adjusting the relative amplitudes of the feeds to the radiators in the columns, and vertical scanning is obtainable by varying the carrier frequency. Circuit arrangements within the modulator control signal unit 302 are also described (Figs. 4, 5, 6, not shown). A 15 Hz oscillator is phase-locked to a 135 Hz master oscillator and each oscillator drives a quadrature phase generator. The modulator control signal for each modulator is obtained by mixing suitable amounts of quadrature components of each of the two modulating frequencies. Specification 1,197,613 is mentioned.
GB9941/69A 1968-02-26 1969-02-25 Cylindrical array antenna system with electronic scanning Expired GB1247242A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70815168A 1968-02-26 1968-02-26

Publications (1)

Publication Number Publication Date
GB1247242A true GB1247242A (en) 1971-09-22

Family

ID=24844581

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9941/69A Expired GB1247242A (en) 1968-02-26 1969-02-25 Cylindrical array antenna system with electronic scanning

Country Status (4)

Country Link
US (1) US3474446A (en)
DE (1) DE1909205B2 (en)
FR (1) FR2002628A1 (en)
GB (1) GB1247242A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3573837A (en) * 1969-06-30 1971-04-06 Us Navy Vector transfer feed system for a circular array antenna
US3670336A (en) * 1970-05-11 1972-06-13 Itt Electronic technique for an all-electronic cylindrical array beacon antenna
US3787859A (en) * 1971-09-29 1974-01-22 Itt Scanning cylindrical antenna for a phase comparison guidance system
AU486176B2 (en) * 1973-08-16 1975-10-02 Amalgamated Wireless (Australasia) Limited Improvements in doppler vor beacons
US3925781A (en) * 1973-10-05 1975-12-09 Emerson Electric Co Digital modulation generator with cylindrical antenna array system
DE2407975C2 (en) * 1974-02-15 1984-06-14 Emerson Electric Co., St. Louis, Mo. Modulation arrangement for amplitude modulation for a radio navigation system
US4074268A (en) * 1976-06-21 1978-02-14 Hoffman Electronics Corporation Electronically scanned antenna
USRE31772E (en) * 1978-11-13 1984-12-18 Anaren Microwave, Incorporated Digital bearing indicator
US4203114A (en) * 1978-11-13 1980-05-13 Anaren Microwave, Inc. Digital bearing indicator
JPS55112003A (en) * 1979-02-22 1980-08-29 Nec Corp Electronic scanning antenna device
US7522095B1 (en) * 2005-07-15 2009-04-21 Lockheed Martin Corporation Polygonal cylinder array antenna
JP2010032497A (en) * 2008-07-02 2010-02-12 Toshiba Corp Radar apparatus and method for forming reception beam of the same
CN114880616B (en) * 2022-05-17 2024-04-05 中国人民解放军63660部队 Method for acquiring radiation field of transient electromagnetic pulse array antenna

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3085204A (en) * 1958-09-03 1963-04-09 Carlyle J Sletten Amplitude scanning
FR1330091A (en) * 1962-07-31 1963-06-14 Antenna device and antenna installation comprising such a device
US3394380A (en) * 1965-10-18 1968-07-23 Navy Usa Mechanical modulator for stationary tacan antenna
US3394379A (en) * 1965-10-18 1968-07-23 Navy Usa Dual band stationary tacan antenna
US3370267A (en) * 1965-10-23 1968-02-20 Hughes Aircraft Co Beam forming system

Also Published As

Publication number Publication date
FR2002628B1 (en) 1974-09-20
FR2002628A1 (en) 1969-10-31
DE1909205A1 (en) 1969-11-20
US3474446A (en) 1969-10-21
DE1909205B2 (en) 1972-12-21

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