EP1371111A4 - Magnetic dipole and shielded spiral sheet antennas structures and methods - Google Patents

Magnetic dipole and shielded spiral sheet antennas structures and methods

Info

Publication number
EP1371111A4
EP1371111A4 EP02724937A EP02724937A EP1371111A4 EP 1371111 A4 EP1371111 A4 EP 1371111A4 EP 02724937 A EP02724937 A EP 02724937A EP 02724937 A EP02724937 A EP 02724937A EP 1371111 A4 EP1371111 A4 EP 1371111A4
Authority
EP
European Patent Office
Prior art keywords
spiral sheet
seam
methods
dielectric constant
magnetic dipole
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.)
Granted
Application number
EP02724937A
Other languages
German (de)
French (fr)
Other versions
EP1371111A1 (en
EP1371111B1 (en
Inventor
Eli Yablonovitch
Laurent Desclos
Sebastian Rowson
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.)
Ethertronics Inc
Original Assignee
Ethertronics Inc
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 US09/781,780 external-priority patent/US6677915B1/en
Priority claimed from US09/781,720 external-priority patent/US6567053B1/en
Application filed by Ethertronics Inc filed Critical Ethertronics Inc
Publication of EP1371111A1 publication Critical patent/EP1371111A1/en
Publication of EP1371111A4 publication Critical patent/EP1371111A4/en
Application granted granted Critical
Publication of EP1371111B1 publication Critical patent/EP1371111B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0442—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular tuning means
    • 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
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10—Resonant slot antennas
    • H01Q13/12—Longitudinally slotted cylinder antennas; Equivalent structures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/20—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/22—Longitudinal slot in boundary wall of waveguide or transmission line

Abstract

The spiral sheet antenna (10) allows a small efficient antenna structure that is much smaller than the electromagnetic wavelength. It achieves the small size by introducing a high effective dielectric constant through geometry rather than through a special high dielectric constant material. It typically includes a rectangular cylinder-like shape, with a seam. The edges of the seam can overlap to make a high capacitance, or they can make a high capacitance by simply having the edges of the seam very close to each other. The highcapacitance serves the same role as a high dielectric constant material in a conventional compact antenna.
EP02724937A 2001-02-12 2002-02-11 Magnetic dipole and shielded spiral sheet antennas structures and methods Expired - Lifetime EP1371111B1 (en)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
US781720 1985-09-30
US781780 1991-10-23
US78177901A 2001-02-12 2001-02-12
US78172301A 2001-02-12 2001-02-12
US09/781,780 US6677915B1 (en) 2001-02-12 2001-02-12 Shielded spiral sheet antenna structure and method
US09/781,720 US6567053B1 (en) 2001-02-12 2001-02-12 Magnetic dipole antenna structure and method
US781723 2001-02-12
US781779 2001-02-12
PCT/US2002/004228 WO2002065583A1 (en) 2001-02-12 2002-02-11 Magnetic dipole and shielded spiral sheet antennas structures and methods

Publications (3)

Publication Number Publication Date
EP1371111A1 EP1371111A1 (en) 2003-12-17
EP1371111A4 true EP1371111A4 (en) 2005-07-13
EP1371111B1 EP1371111B1 (en) 2008-10-22

Family

ID=27505755

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02724937A Expired - Lifetime EP1371111B1 (en) 2001-02-12 2002-02-11 Magnetic dipole and shielded spiral sheet antennas structures and methods

Country Status (5)

Country Link
EP (1) EP1371111B1 (en)
KR (4) KR20100037168A (en)
AT (1) ATE412259T1 (en)
DE (1) DE60229503D1 (en)
WO (1) WO2002065583A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1526604A1 (en) 1999-09-20 2005-04-27 Fractus, S.A. Multilevel antenna
EP2025043A2 (en) 2006-06-08 2009-02-18 Fractus, S.A. Distributed antenna system robust to human body loading effects
US8738103B2 (en) 2006-07-18 2014-05-27 Fractus, S.A. Multiple-body-configuration multimedia and smartphone multifunction wireless devices
US7932869B2 (en) * 2007-08-17 2011-04-26 Ethertronics, Inc. Antenna with volume of material
US8570239B2 (en) 2008-10-10 2013-10-29 LHC2 Inc. Spiraling surface antenna
WO2010085706A2 (en) 2009-01-23 2010-07-29 Lhc2 Inc Compact circularly polarized omni-directional antenna
US8854266B2 (en) 2011-08-23 2014-10-07 Apple Inc. Antenna isolation elements
US8963794B2 (en) * 2011-08-23 2015-02-24 Apple Inc. Distributed loop antennas
CN109586016B (en) * 2018-10-26 2021-06-11 宁波大学 Series-fed planar printed array antenna

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5781158A (en) * 1995-04-25 1998-07-14 Young Hoek Ko Electric/magnetic microstrip antenna
WO2001008255A1 (en) * 1999-07-21 2001-02-01 Rangestar Wireless, Inc. Capacitively-tune broadband antenna structure

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4328502A (en) * 1965-06-21 1982-05-04 The United States Of America As Represented By The Secretary Of The Navy Continuous slot antennas
KR0139439B1 (en) * 1995-04-25 1998-07-01 고영혁 Microstrip antenna
US5754143A (en) * 1996-10-29 1998-05-19 Southwest Research Institute Switch-tuned meandered-slot antenna

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5781158A (en) * 1995-04-25 1998-07-14 Young Hoek Ko Electric/magnetic microstrip antenna
WO2001008255A1 (en) * 1999-07-21 2001-02-01 Rangestar Wireless, Inc. Capacitively-tune broadband antenna structure

Also Published As

Publication number Publication date
KR20090016491A (en) 2009-02-13
WO2002065583A1 (en) 2002-08-22
ATE412259T1 (en) 2008-11-15
KR20030084925A (en) 2003-11-01
EP1371111A1 (en) 2003-12-17
EP1371111B1 (en) 2008-10-22
KR20080064907A (en) 2008-07-09
KR100945124B1 (en) 2010-03-02
DE60229503D1 (en) 2008-12-04
KR20100037168A (en) 2010-04-08

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