GB2471578B - A multifilar antenna - Google Patents

A multifilar antenna

Info

Publication number: GB2471578B
Authority: GB; United Kingdom
Prior art keywords: multifilar antenna; multifilar; antenna
Prior art date: 2009-07-03
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

GB1011226.6A

Other versions

GB2471578A (en

GB201011226D0 (en

Inventor

Oliver Paul Leisten

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.)

Sarantel Ltd

Original Assignee

Sarantel 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.)

2009-07-03

Filing date

2010-07-02

Publication date

2013-04-17

2010-07-02 Application filed by Sarantel Ltd filed Critical Sarantel Ltd

2010-08-18 Publication of GB201011226D0 publication Critical patent/GB201011226D0/en

2011-01-05 Publication of GB2471578A publication Critical patent/GB2471578A/en

2013-04-17 Application granted granted Critical

2013-04-17 Publication of GB2471578B publication Critical patent/GB2471578B/en

Status Expired - Fee Related legal-status Critical Current

2030-07-02 Anticipated expiration legal-status Critical

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
- H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
- H01Q11/08—Helical antennas
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems

GB1011226.6A 2009-07-03 2010-07-02 A multifilar antenna Expired - Fee Related GB2471578B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GBGB0911635.1A GB0911635D0 (en)	2009-07-03	2009-07-03	A dielectrically-loaded antenna

Publications (3)

Publication Number	Publication Date
GB201011226D0 GB201011226D0 (en)	2010-08-18
GB2471578A GB2471578A (en)	2011-01-05
GB2471578B true GB2471578B (en)	2013-04-17

Family

ID=41008748

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
GBGB0911635.1A Ceased GB0911635D0 (en)	2009-05-05	2009-07-03	A dielectrically-loaded antenna
GB1011226.6A Expired - Fee Related GB2471578B (en)	2009-07-03	2010-07-02	A multifilar antenna

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
GBGB0911635.1A Ceased GB0911635D0 (en)	2009-05-05	2009-07-03	A dielectrically-loaded antenna

Country Status (7)

Country	Link
JP (1)	JP2012532518A (en)
KR (1)	KR20120042858A (en)
CN (1)	CN102474014A (en)
BR (1)	BR112012000087A2 (en)
GB (2)	GB0911635D0 (en)
TW (1)	TW201112490A (en)
WO (1)	WO2011001153A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB201012923D0 (en) *	2010-07-30	2010-09-15	Sarantel Ltd	An antenna
WO2014064839A1 (en)	2012-10-26	2014-05-01	富士通フロンテック株式会社	Tag access device
GB2508638B (en) *	2012-12-06	2016-03-16	Harris Corp	A dielectrically loaded multifilar antenna with a phasing ring feed
CN108091995B (en) *	2018-01-25	2023-09-22	电信科学技术第一研究所有限公司	Eight-arm spiral circular polarization dual-frequency antenna suitable for laser direct structuring technology
CN109473770B (en) *	2018-12-10	2024-01-05	广东工业大学	Spiral antenna based on parallel plate capacitor loading
CN111740215B (en) *	2020-07-28	2023-08-18	福州大学	Miniaturized coupled multi-band helical antenna fed by self-phase shift

Citations (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5572172A (en) *	1995-08-09	1996-11-05	Qualcomm Incorporated	180° power divider for a helix antenna
US5986616A (en) *	1997-12-30	1999-11-16	Allgon Ab	Antenna system for circularly polarized radio waves including antenna means and interface network
GB2346014A (en) *	1998-12-29	2000-07-26	Symmetricom Inc	Resonantly dimensioned circularly polarised antenna
US6181295B1 (en) *	1996-03-19	2001-01-30	France Telecom	Helix antenna with a built-in broadband power supply, and manufacturing methods therefor
US20020000949A1 (en) *	1999-12-15	2002-01-03	Mitsubishi Denki Kabushiki Kaisha	Antenna device provided with matching circuits adapted for reflection coefficients
WO2002037609A1 (en) *	2000-11-04	2002-05-10	University Of Bradford	Multi-band antenna
US20040056819A1 (en) *	2002-09-23	2004-03-25	Mccarthy Robert Daniel	Feed network
GB2445478A (en) *	2007-01-08	2008-07-09	Sarantel Ltd	A dielectrically-loaded antenna with at least three pairs of elongate conductive elements
US20080174501A1 (en) *	2006-12-08	2008-07-24	Stanislav Licul	Method and Apparatus for Quadrifilar Antenna with Open Circuit Element Terminations

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
AU693616B2 (en) *	1994-12-06	1998-07-02	Andrew Llc	A helical antenna
GB2420230B (en)	2004-11-11	2009-06-03	Sarantel Ltd	A dielectrically-loaded antenna
GB0512652D0 (en) *	2005-06-21	2005-07-27	Sarantel Ltd	An antenna and an antenna feed structure
TW200713693A (en)	2005-06-21	2007-04-01	Sarantel Ltd	An antenna and an antenna feed structure
GB2437998B (en)	2006-05-12	2009-11-11	Sarantel Ltd	An antenna system
GB2442998B (en)	2006-10-20	2010-01-06	Sarantel Ltd	A dielectrically-loaded antenna
GB0623774D0 (en)	2006-11-28	2007-01-10	Sarantel Ltd	An Antenna Assembly Including a Dielectrically Loaded Antenna
US20080316138A1 (en) *	2007-10-26	2008-12-25	X-Ether, Inc.	Balance-fed helical antenna

2009
- 2009-07-03 GB GBGB0911635.1A patent/GB0911635D0/en not_active Ceased
2010
- 2010-07-02 BR BR112012000087A patent/BR112012000087A2/en not_active IP Right Cessation
- 2010-07-02 GB GB1011226.6A patent/GB2471578B/en not_active Expired - Fee Related
- 2010-07-02 JP JP2012518128A patent/JP2012532518A/en not_active Withdrawn
- 2010-07-02 KR KR1020127001774A patent/KR20120042858A/en not_active Withdrawn
- 2010-07-02 WO PCT/GB2010/001279 patent/WO2011001153A1/en not_active Ceased
- 2010-07-02 CN CN2010800303502A patent/CN102474014A/en active Pending
- 2010-07-05 TW TW099122053A patent/TW201112490A/en unknown

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5572172A (en) *	1995-08-09	1996-11-05	Qualcomm Incorporated	180° power divider for a helix antenna
US6181295B1 (en) *	1996-03-19	2001-01-30	France Telecom	Helix antenna with a built-in broadband power supply, and manufacturing methods therefor
US5986616A (en) *	1997-12-30	1999-11-16	Allgon Ab	Antenna system for circularly polarized radio waves including antenna means and interface network
GB2346014A (en) *	1998-12-29	2000-07-26	Symmetricom Inc	Resonantly dimensioned circularly polarised antenna
US20020000949A1 (en) *	1999-12-15	2002-01-03	Mitsubishi Denki Kabushiki Kaisha	Antenna device provided with matching circuits adapted for reflection coefficients
WO2002037609A1 (en) *	2000-11-04	2002-05-10	University Of Bradford	Multi-band antenna
US20040056819A1 (en) *	2002-09-23	2004-03-25	Mccarthy Robert Daniel	Feed network
US20080174501A1 (en) *	2006-12-08	2008-07-24	Stanislav Licul	Method and Apparatus for Quadrifilar Antenna with Open Circuit Element Terminations
GB2445478A (en) *	2007-01-08	2008-07-09	Sarantel Ltd	A dielectrically-loaded antenna with at least three pairs of elongate conductive elements

Also Published As

Publication number	Publication date
BR112012000087A2 (en)	2017-02-21
GB0911635D0 (en)	2009-08-12
JP2012532518A (en)	2012-12-13
TW201112490A (en)	2011-04-01
KR20120042858A (en)	2012-05-03
GB2471578A (en)	2011-01-05
GB201011226D0 (en)	2010-08-18
WO2011001153A1 (en)	2011-01-06
CN102474014A (en)	2012-05-23

Publication	Publication Date	Title
GB2469209B (en)	2011-12-14	Antenna
EP2356718A4 (en)	2012-11-21	Optimized conformal-to-meter antennas
EP2517301A4 (en)	2013-07-31	Three dimensional antenna
GB2469150B (en)	2011-04-27	Antenna assembly
GB2469349B (en)	2011-04-27	Antenna feed
GB0902314D0 (en)	2009-04-01	Antennas
EP2466685A4 (en)	2013-01-02	Integrated antenna
GB0908825D0 (en)	2009-07-01	Antenna selection
GB2468582B (en)	2013-02-27	A dielectrically-loaded antenna
EP2416445A4 (en)	2014-05-14	Wide band antenna
GB2471578B (en)	2013-04-17	A multifilar antenna
EP2458682A4 (en)	2013-08-21	Dipole antenna
GB2472260B (en)	2014-02-12	A brassiere
GB0808661D0 (en)	2008-06-18	A dielectrically-loaded antenna
GB201009752D0 (en)	2010-07-21	Notch antenna
GB2485084B (en)	2014-10-01	Multiresonance helix antenna
GB2476727B (en)	2013-06-26	Antenna
GB201001904D0 (en)	2010-03-24	A structure
GB2481743B (en)	2014-08-20	Antenna
GB0922029D0 (en)	2010-02-03	Microelectromechanical antenna
GB0913358D0 (en)	2009-09-16	A brassiere
GB0902679D0 (en)	2009-04-01	Antenna
TWM370194U (en)	2009-12-01	Antenna
TWI341621B (en)	2011-05-01	A coupled-fed multiband antenna
TWM372543U (en)	2010-01-11	Monopole antenna

Legal Events

Date	Code	Title	Description
2012-07-11	732E	Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)	Free format text: REGISTERED BETWEEN 20120614 AND 20120620
2013-12-25	732E	Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)	Free format text: REGISTERED BETWEEN 20131128 AND 20131204
2015-03-25	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 20140702