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GB2380325B - Improvements relating to antennas - Google Patents

Improvements relating to antennas

Info

Publication number
GB2380325B
GB2380325B GB0211460A GB0211460A GB2380325B GB 2380325 B GB2380325 B GB 2380325B GB 0211460 A GB0211460 A GB 0211460A GB 0211460 A GB0211460 A GB 0211460A GB 2380325 B GB2380325 B GB 2380325B
Authority
GB
United Kingdom
Prior art keywords
antennas
improvements relating
relating
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 - Fee Related
Application number
GB0211460A
Other versions
GB2380325A (en
GB0211460D0 (en
Inventor
Vincent F Fusco
Robert Cahill
Ronglin Li
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.)
Queens University of Belfast
Original Assignee
Queens University of Belfast
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 Queens University of Belfast filed Critical Queens University of Belfast
Publication of GB0211460D0 publication Critical patent/GB0211460D0/en
Publication of GB2380325A publication Critical patent/GB2380325A/en
Application granted granted Critical
Publication of GB2380325B publication Critical patent/GB2380325B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
    • H01Q9/265—Open ring dipoles; Circular dipoles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
GB0211460A 2001-06-20 2002-05-20 Improvements relating to antennas Expired - Fee Related GB2380325B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0115023.4A GB0115023D0 (en) 2001-06-20 2001-06-20 Improvements relating to antennas

Publications (3)

Publication Number Publication Date
GB0211460D0 GB0211460D0 (en) 2002-06-26
GB2380325A GB2380325A (en) 2003-04-02
GB2380325B true GB2380325B (en) 2005-06-01

Family

ID=9916961

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0115023.4A Ceased GB0115023D0 (en) 2001-06-20 2001-06-20 Improvements relating to antennas
GB0211460A Expired - Fee Related GB2380325B (en) 2001-06-20 2002-05-20 Improvements relating to antennas

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0115023.4A Ceased GB0115023D0 (en) 2001-06-20 2001-06-20 Improvements relating to antennas

Country Status (1)

Country Link
GB (2) GB0115023D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7064721B2 (en) * 2003-06-27 2006-06-20 Delphi Technologies, Inc. Mobile satellite radio antenna system
US7847747B2 (en) * 2007-06-25 2010-12-07 Bae Systems Information And Electronic Systems Intergration Inc. Orientation-independent antenna (ORIAN) with shorts

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1272990A (en) * 1968-09-10 1972-05-03 Sony Corp Directional antennae
US3761933A (en) * 1972-09-21 1973-09-25 Rca Corp Loop antenna with distributed impedance near the terminating gap
GB2166000A (en) * 1984-10-24 1986-04-23 Electronic Indentification Sys A system for transmission of high-frequency electromagnetic signals
US4620155A (en) * 1984-08-16 1986-10-28 General Electric Company Nuclear magnetic resonance imaging antenna subsystem having a plurality of non-orthogonal surface coils
DE4327917A1 (en) * 1993-08-23 1995-03-09 Ralph Dipl Ing Meissner Magnetic antenna
WO1997001197A1 (en) * 1995-06-21 1997-01-09 Motorola Inc. Method and antenna for providing an omnidirectional pattern
GB2308745A (en) * 1995-12-22 1997-07-02 Mitsubishi Electric Corp Receiving apparatus and transmitting apparatus in a thin form
EP0829917A1 (en) * 1996-09-12 1998-03-18 Mitsubishi Materials Corporation Antenna device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1272990A (en) * 1968-09-10 1972-05-03 Sony Corp Directional antennae
US3761933A (en) * 1972-09-21 1973-09-25 Rca Corp Loop antenna with distributed impedance near the terminating gap
US4620155A (en) * 1984-08-16 1986-10-28 General Electric Company Nuclear magnetic resonance imaging antenna subsystem having a plurality of non-orthogonal surface coils
GB2166000A (en) * 1984-10-24 1986-04-23 Electronic Indentification Sys A system for transmission of high-frequency electromagnetic signals
DE4327917A1 (en) * 1993-08-23 1995-03-09 Ralph Dipl Ing Meissner Magnetic antenna
WO1997001197A1 (en) * 1995-06-21 1997-01-09 Motorola Inc. Method and antenna for providing an omnidirectional pattern
GB2308745A (en) * 1995-12-22 1997-07-02 Mitsubishi Electric Corp Receiving apparatus and transmitting apparatus in a thin form
EP0829917A1 (en) * 1996-09-12 1998-03-18 Mitsubishi Materials Corporation Antenna device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Li et al, "IEE Antennas and Propagation, 11th International Conference", published April 2001, Vol.2, pages 766 - 769, "Pattern control using a reactively loaded loop antenna" *

Also Published As

Publication number Publication date
GB2380325A (en) 2003-04-02
GB0211460D0 (en) 2002-06-26
GB0115023D0 (en) 2001-08-08

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Legal Events

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

Effective date: 20090520