GB1475319A - Passive antenna element - Google Patents

Passive antenna element

Info

Publication number
GB1475319A
GB1475319A GB2318674A GB2318674A GB1475319A GB 1475319 A GB1475319 A GB 1475319A GB 2318674 A GB2318674 A GB 2318674A GB 2318674 A GB2318674 A GB 2318674A GB 1475319 A GB1475319 A GB 1475319A
Authority
GB
United Kingdom
Prior art keywords
arms
active region
degrees
phase shift
reflection
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
GB2318674A
Other languages
English (en)
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.)
Harris Corp
Original Assignee
Harris 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
Priority claimed from US363029A external-priority patent/US3906514A/en
Application filed by Harris Corp filed Critical Harris Corp
Publication of GB1475319A publication Critical patent/GB1475319A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/14—Reflecting surfaces; Equivalent structures
    • H01Q15/22—Reflecting surfaces; Equivalent structures functioning also as polarisation filter
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
    • 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
    • H01Q3/44—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 electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element
    • H01Q3/46—Active lenses or reflecting arrays

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
GB2318674A 1973-05-23 1974-05-23 Passive antenna element Expired GB1475319A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US363029A US3906514A (en) 1971-10-27 1973-05-23 Dual polarization spiral antenna

Publications (1)

Publication Number Publication Date
GB1475319A true GB1475319A (en) 1977-06-01

Family

ID=23428485

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2318674A Expired GB1475319A (en) 1973-05-23 1974-05-23 Passive antenna element

Country Status (6)

Country Link
CA (1) CA1018276A (it)
DE (1) DE2424819A1 (it)
DK (1) DK143827C (it)
FR (1) FR2231127B1 (it)
GB (1) GB1475319A (it)
IT (1) IT1012736B (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3949407A (en) * 1972-12-25 1976-04-06 Harris Corporation Direct fed spiral antenna
FR2522888A1 (fr) * 1982-03-02 1983-09-09 Thomson Csf Antenne a double reflecteur a transformateur de polarisation incorpore

Also Published As

Publication number Publication date
DK264274A (it) 1975-03-17
IT1012736B (it) 1977-03-10
AU6932874A (en) 1975-11-27
DK143827C (da) 1982-03-08
CA1018276A (en) 1977-09-27
DK143827B (da) 1981-10-12
FR2231127B1 (it) 1979-02-16
DE2424819A1 (de) 1974-12-19
FR2231127A1 (it) 1974-12-20

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Legal Events

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