GB1517544A - Antenna system for use as side-lobe control means - Google Patents

Antenna system for use as side-lobe control means

Info

Publication number
GB1517544A
GB1517544A GB3731675A GB3731675A GB1517544A GB 1517544 A GB1517544 A GB 1517544A GB 3731675 A GB3731675 A GB 3731675A GB 3731675 A GB3731675 A GB 3731675A GB 1517544 A GB1517544 A GB 1517544A
Authority
GB
United Kingdom
Prior art keywords
antenna
secondary radar
reflector
sept
quarter
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
GB3731675A
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Publication of GB1517544A publication Critical patent/GB1517544A/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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
    • G01S13/762—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted with special measures concerning the radiation pattern, e.g. S.L.S.
    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/87—Combinations of radar systems, e.g. primary radar and secondary radar
    • G01S13/872—Combinations of primary radar and secondary radar
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns

Landscapes

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

Abstract

1517544 Aerials THOMSON CSF 10 Sept 1975 [13 Sept 1974] 37316/75 Heading H4A An antenna for use in the side lobe suppression channel of a secondary radar and providing a radiation pattern which overlaps the side lobes of the radar comprises a radiating element 5 and passive reflector element 10 mounted on a reflective plate 12. For the stated use, the antenna is mounted at or near the top edge of the single common reflector dish of a primary and a secondary radar (Fig. 1, not shown) so that the cusp in the approximately-cardioid pattern of the antenna coincides with themain lobe of the secondary radar. As shown, element 5 is a quarterwavelength skirted one, is spaced from reflector 10 by a quarter-wavelength, and is fed by a co-axial line including impedance-matching transformer 7. Quarter-wavelength chokes 6 and 9 of cylindrical and radial form respectively are provided. Element 5 is housed in a dielectric radome 8.
GB3731675A 1974-09-13 1975-09-10 Antenna system for use as side-lobe control means Expired GB1517544A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7431152A FR2284997A1 (en) 1974-09-13 1974-09-13 COMMON ANTENNA FOR PRIMARY RADAR AND SECONDARY RADAR WITH INTERROGATION CONTROL MEANS

Publications (1)

Publication Number Publication Date
GB1517544A true GB1517544A (en) 1978-07-12

Family

ID=9143089

Family Applications (2)

Application Number Title Priority Date Filing Date
GB3731775A Expired GB1506890A (en) 1974-09-13 1975-09-10 Common antenna for primary and secondary radars having means for suppressing interrogation side-lobes
GB3731675A Expired GB1517544A (en) 1974-09-13 1975-09-10 Antenna system for use as side-lobe control means

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB3731775A Expired GB1506890A (en) 1974-09-13 1975-09-10 Common antenna for primary and secondary radars having means for suppressing interrogation side-lobes

Country Status (3)

Country Link
DE (2) DE2540786C3 (en)
FR (1) FR2284997A1 (en)
GB (2) GB1506890A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2928370A1 (en) * 1979-07-13 1981-01-15 Siemens Ag ANTENNA ARRANGEMENT FOR THE RADIATION LEVEL COVERAGE OF ALL SUB-PIPES OF A SHARP BANDING MAIN ANTENNA
DE3727556A1 (en) * 1987-08-18 1989-03-02 Siemens Ag Antenna arrangement

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2445629A1 (en) * 1978-12-27 1980-07-25 Thomson Csf COMMON ANTENNA FOR PRIMARY RADAR AND SECONDARY RADAR
IT1166889B (en) * 1979-06-14 1987-05-06 Contraves Italiana Spa ARRANGEMENT OF INTEGRATED ANTENNAS FOR RADAR EQUIPMENT THAT ALLOWS THE CONTEMPORARY GENERATION OF TWO OR MORE IRRADIATION DIAGRAMS, ONE DIFFERENT FROM THE OTHER
DE2925104C2 (en) * 1979-06-21 1984-06-20 Siemens AG, 1000 Berlin und 8000 München Segment (pillbox) radar antenna with integrated IFF antenna
FR2469015A1 (en) * 1979-10-26 1981-05-08 Thomson Csf RADAR ANTENNA COMPRISING ELEMENTS RADIATING A PSEUDO-OMNIDIRECTIONAL DIAGRAM
GB2089133A (en) * 1980-12-03 1982-06-16 Marconi Co Ltd Secondary radar antenna
CN113391138B (en) * 2020-03-13 2022-08-30 中国人民解放军63756部队 Antenna side lobe identification and automatic main lobe conversion method based on tracking track fitting

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB952897A (en) * 1961-03-09 1964-03-18 Marconi Co Ltd Improvements in or relating to aerial systems
FR1316780A (en) * 1962-02-22 1963-02-01 Marconi Wireless Telegraph Co Radar antenna improvements
DE1273619B (en) * 1966-05-28 1968-07-25 Telefunken Patent Antenna system for a secondary radar system
FR1524716A (en) * 1966-05-28 1968-05-10 Telefunken Patent Antenna system for a secondary radar installation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2928370A1 (en) * 1979-07-13 1981-01-15 Siemens Ag ANTENNA ARRANGEMENT FOR THE RADIATION LEVEL COVERAGE OF ALL SUB-PIPES OF A SHARP BANDING MAIN ANTENNA
DE3727556A1 (en) * 1987-08-18 1989-03-02 Siemens Ag Antenna arrangement

Also Published As

Publication number Publication date
DE2540763C3 (en) 1981-05-07
DE2540763A1 (en) 1976-04-01
DE2540763B2 (en) 1980-09-11
FR2284997B1 (en) 1979-03-09
DE2540786A1 (en) 1976-04-01
FR2284997A1 (en) 1976-04-09
DE2540786C3 (en) 1981-07-23
GB1506890A (en) 1978-04-12
DE2540786B2 (en) 1980-09-11

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee