GB2240883A - Antennas - Google Patents

Antennas

Info

Publication number
GB2240883A
GB2240883A GB9102692A GB9102692A GB2240883A GB 2240883 A GB2240883 A GB 2240883A GB 9102692 A GB9102692 A GB 9102692A GB 9102692 A GB9102692 A GB 9102692A GB 2240883 A GB2240883 A GB 2240883A
Authority
GB
United Kingdom
Prior art keywords
inflated
antennas
antenna
inflatable structure
feed means
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.)
Withdrawn
Application number
GB9102692A
Other versions
GB9102692D0 (en
Inventor
Thomas Michael Benyon Wright
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB9102692D0 publication Critical patent/GB9102692D0/en
Publication of GB2240883A publication Critical patent/GB2240883A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/08—Means for collapsing antennas or parts thereof
    • H01Q1/081—Inflatable antennas
    • 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
    • H01Q15/02—Refracting or diffracting devices, e.g. lens, prism
    • 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
    • H01Q19/06—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 refracting or diffracting devices, e.g. lens
    • H01Q19/062—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 refracting or diffracting devices, e.g. lens for focusing
    • H01Q19/065—Zone plate type antennas

Landscapes

  • Details Of Aerials (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

An antenna comprises a feed means (1), and an inflatable structure (3) having focusing means (8, 9) arranged such that the feed means (1) is at the focus of the focusing means (8, 9) when the structure (3) is inflated. The inflatable structure (3) can be of inelastic plastics material. The antenna has the advantages of cheapness and light weight, and of being easily transported either inflated or deflated.
GB9102692A 1988-08-11 1991-02-08 Antennas Withdrawn GB2240883A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB888819143A GB8819143D0 (en) 1988-08-11 1988-08-11 Antenna
PCT/GB1989/000879 WO1990001813A1 (en) 1988-08-11 1989-08-01 Antennas

Publications (2)

Publication Number Publication Date
GB9102692D0 GB9102692D0 (en) 1991-04-17
GB2240883A true GB2240883A (en) 1991-08-14

Family

ID=10642001

Family Applications (2)

Application Number Title Priority Date Filing Date
GB888819143A Pending GB8819143D0 (en) 1988-08-11 1988-08-11 Antenna
GB9102692A Withdrawn GB2240883A (en) 1988-08-11 1991-02-08 Antennas

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB888819143A Pending GB8819143D0 (en) 1988-08-11 1988-08-11 Antenna

Country Status (2)

Country Link
GB (2) GB8819143D0 (en)
WO (1) WO1990001813A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69523976T2 (en) * 1994-04-29 2002-05-29 Thales Nederland Bv Microwave antenna with adjustable radiation characteristics
DE10029263A1 (en) 2000-06-15 2002-01-24 Rheinmetall W & M Gmbh Antenna, especially high-power microwave antenna
US8384614B2 (en) 2010-09-30 2013-02-26 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Deployable wireless Fresnel lens

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3273155A (en) * 1963-09-13 1966-09-13 Litton Systems Inc Fresnel zone lens antenna
US3321763A (en) * 1965-01-27 1967-05-23 Ikrath Kurt Inflatable microwave antenna with variable parameters

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3273155A (en) * 1963-09-13 1966-09-13 Litton Systems Inc Fresnel zone lens antenna
US3321763A (en) * 1965-01-27 1967-05-23 Ikrath Kurt Inflatable microwave antenna with variable parameters

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
IEEE NEREM Record 1966.See page 223, figures 4+6. *
IEEE Transactions vol. AP-32, no. 3, March 1984. Pages 306+307 *

Also Published As

Publication number Publication date
GB9102692D0 (en) 1991-04-17
WO1990001813A1 (en) 1990-02-22
GB8819143D0 (en) 1988-09-14

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)