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GB2391710B - Antenna system - Google Patents

Antenna system

Info

Publication number
GB2391710B
GB2391710B GB0218461A GB0218461A GB2391710B GB 2391710 B GB2391710 B GB 2391710B GB 0218461 A GB0218461 A GB 0218461A GB 0218461 A GB0218461 A GB 0218461A GB 2391710 B GB2391710 B GB 2391710B
Authority
GB
United Kingdom
Prior art keywords
antenna system
antenna
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
GB0218461A
Other versions
GB0218461D0 (en
GB2391710A (en
Inventor
Mark Tereszczak
Richard Webber
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.)
Shearwell Data Ltd
Shearwell Data Ltd
Original Assignee
Shearwell Data Ltd
Shearwell Data Ltd
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 Shearwell Data Ltd, Shearwell Data Ltd filed Critical Shearwell Data Ltd
Priority to GB0218461A priority Critical patent/GB2391710B/en
Publication of GB0218461D0 publication Critical patent/GB0218461D0/en
Publication of GB2391710A publication Critical patent/GB2391710A/en
Application granted granted Critical
Publication of GB2391710B publication Critical patent/GB2391710B/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
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/273—Adaptation for carrying or wearing by persons or animals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
GB0218461A 2002-08-08 2002-08-08 Antenna system Expired - Fee Related GB2391710B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0218461A GB2391710B (en) 2002-08-08 2002-08-08 Antenna system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0218461A GB2391710B (en) 2002-08-08 2002-08-08 Antenna system

Publications (3)

Publication Number Publication Date
GB0218461D0 GB0218461D0 (en) 2002-09-18
GB2391710A GB2391710A (en) 2004-02-11
GB2391710B true GB2391710B (en) 2005-11-30

Family

ID=9941968

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0218461A Expired - Fee Related GB2391710B (en) 2002-08-08 2002-08-08 Antenna system

Country Status (1)

Country Link
GB (1) GB2391710B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2461126B (en) 2008-06-25 2010-09-29 Shearwell Data Ltd Antenna system
GB0904115D0 (en) * 2009-03-10 2009-04-22 Scott David L Chute and method for recording the passage of livestock

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3500373A (en) * 1966-05-06 1970-03-10 Nat Bank Of North America The Method and apparatus for article theft detection
US4679046A (en) * 1984-12-21 1987-07-07 Senelco Limited Transponder systems
US4798175A (en) * 1986-10-09 1989-01-17 Alfa-Laval Agri, Inc. Electronic identification system
JPH11316806A (en) * 1998-05-07 1999-11-16 Omron Corp Data communication equipment
WO2001003237A1 (en) * 1999-07-02 2001-01-11 Acos Limited Coil antenna device and method for generating a varying magnetic field
US20020101963A1 (en) * 2000-12-12 2002-08-01 Sunil Contractor Systems and methods for per use busy message

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3500373A (en) * 1966-05-06 1970-03-10 Nat Bank Of North America The Method and apparatus for article theft detection
US4679046A (en) * 1984-12-21 1987-07-07 Senelco Limited Transponder systems
US4798175A (en) * 1986-10-09 1989-01-17 Alfa-Laval Agri, Inc. Electronic identification system
JPH11316806A (en) * 1998-05-07 1999-11-16 Omron Corp Data communication equipment
WO2001003237A1 (en) * 1999-07-02 2001-01-11 Acos Limited Coil antenna device and method for generating a varying magnetic field
US20020101963A1 (en) * 2000-12-12 2002-08-01 Sunil Contractor Systems and methods for per use busy message

Also Published As

Publication number Publication date
GB0218461D0 (en) 2002-09-18
GB2391710A (en) 2004-02-11

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Legal Events

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

Effective date: 20210808