CA2198111A1 - Method and antenna for providing an omnidirectional pattern - Google Patents

Method and antenna for providing an omnidirectional pattern

Info

Publication number
CA2198111A1
CA2198111A1 CA2198111A CA2198111A CA2198111A1 CA 2198111 A1 CA2198111 A1 CA 2198111A1 CA 2198111 A CA2198111 A CA 2198111A CA 2198111 A CA2198111 A CA 2198111A CA 2198111 A1 CA2198111 A1 CA 2198111A1
Authority
CA
Canada
Prior art keywords
antenna
providing
pattern
omnidirectional pattern
omnidirectional
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
CA2198111A
Other languages
French (fr)
Other versions
CA2198111C (en
Inventor
James Patrick Phillips
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.)
Google Technology Holdings LLC
Original Assignee
James Patrick Phillips
Motorola, Inc.
Motorola Mobility, Inc.
Motorola Mobility Llc
Google Technology Holdings LLC
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 James Patrick Phillips, Motorola, Inc., Motorola Mobility, Inc., Motorola Mobility Llc, Google Technology Holdings LLC filed Critical James Patrick Phillips
Publication of CA2198111A1 publication Critical patent/CA2198111A1/en
Application granted granted Critical
Publication of CA2198111C publication Critical patent/CA2198111C/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
    • 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
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/12—Resonant antennas
    • 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
    • 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
    • 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
    • H01Q9/18—Vertical disposition of the antenna

Abstract

The present invention provides a method (400) and antenna (100) for providing an omnidirectional pattern. The antenna (100) is smaller than prior art omnidirectional antennas with the same bandwidth. The smaller size is made possible by the use of at least one capacitive element (104) at a discontinuity in the loop (102). The pattern is balanced and therefore the omnidirectionality is maintained by the current maximum (110 and 112) that are created by the capacitive element (104).
CA002198111A 1995-06-21 1996-04-26 Method and antenna for providing an omnidirectional pattern Expired - Lifetime CA2198111C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US49303995A 1995-06-21 1995-06-21
US08/493,039 1995-06-21
PCT/US1996/005741 WO1997001197A1 (en) 1995-06-21 1996-04-26 Method and antenna for providing an omnidirectional pattern

Publications (2)

Publication Number Publication Date
CA2198111A1 true CA2198111A1 (en) 1997-01-09
CA2198111C CA2198111C (en) 2000-01-11

Family

ID=23958656

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002198111A Expired - Lifetime CA2198111C (en) 1995-06-21 1996-04-26 Method and antenna for providing an omnidirectional pattern

Country Status (6)

Country Link
US (1) US5751252A (en)
EP (1) EP0776530A4 (en)
CN (1) CN1081836C (en)
AU (1) AU691111B2 (en)
CA (1) CA2198111C (en)
WO (1) WO1997001197A1 (en)

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WO2003052435A1 (en) 2001-08-21 2003-06-26 Cascade Microtech, Inc. Membrane probing system
US6608602B2 (en) * 2001-11-06 2003-08-19 Intel Corporation Method and apparatus for a high isolation dual port antenna system
US7057404B2 (en) 2003-05-23 2006-06-06 Sharp Laboratories Of America, Inc. Shielded probe for testing a device under test
US7492172B2 (en) 2003-05-23 2009-02-17 Cascade Microtech, Inc. Chuck for holding a device under test
US7250626B2 (en) 2003-10-22 2007-07-31 Cascade Microtech, Inc. Probe testing structure
US7187188B2 (en) 2003-12-24 2007-03-06 Cascade Microtech, Inc. Chuck with integrated wafer support
JP2007517231A (en) 2003-12-24 2007-06-28 カスケード マイクロテック インコーポレイテッド Active wafer probe
WO2006031646A2 (en) 2004-09-13 2006-03-23 Cascade Microtech, Inc. Double sided probing structures
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US7535247B2 (en) 2005-01-31 2009-05-19 Cascade Microtech, Inc. Interface for testing semiconductors
US7656172B2 (en) 2005-01-31 2010-02-02 Cascade Microtech, Inc. System for testing semiconductors
US20070069968A1 (en) * 2005-09-29 2007-03-29 Moller Paul J High frequency omni-directional loop antenna including three or more radiating dipoles
US7839351B2 (en) * 2006-04-14 2010-11-23 Spx Corporation Antenna system and method to transmit cross-polarized signals from a common radiator with low mutual coupling
US7723999B2 (en) 2006-06-12 2010-05-25 Cascade Microtech, Inc. Calibration structures for differential signal probing
US7403028B2 (en) 2006-06-12 2008-07-22 Cascade Microtech, Inc. Test structure and probe for differential signals
US7764072B2 (en) 2006-06-12 2010-07-27 Cascade Microtech, Inc. Differential signal probing system
US8081699B2 (en) 2006-07-15 2011-12-20 Kazimierz Siwiak Wireless communication system and method with elliptically polarized radio frequency signals
US7876114B2 (en) 2007-08-08 2011-01-25 Cascade Microtech, Inc. Differential waveguide probe
DE102008003532A1 (en) * 2007-09-06 2009-03-12 Lindenmeier, Heinz, Prof. Dr. Ing. Antenna for satellite reception
EP2034557B1 (en) 2007-09-06 2012-02-01 Delphi Delco Electronics Europe GmbH Antenna for satellite reception
US8462061B2 (en) * 2008-03-26 2013-06-11 Dockon Ag Printed compound loop antenna
US8164528B2 (en) * 2008-03-26 2012-04-24 Dockon Ag Self-contained counterpoise compound loop antenna
GB0805393D0 (en) * 2008-03-26 2008-04-30 Dockon Ltd Improvements in and relating to antennas
DE102008002587A1 (en) * 2008-06-23 2009-12-24 Biotronik Crm Patent Ag Patient device with an antenna arrangement with polarization diversity
US7888957B2 (en) 2008-10-06 2011-02-15 Cascade Microtech, Inc. Probing apparatus with impedance optimized interface
WO2010059247A2 (en) 2008-11-21 2010-05-27 Cascade Microtech, Inc. Replaceable coupon for a probing apparatus
US8319503B2 (en) 2008-11-24 2012-11-27 Cascade Microtech, Inc. Test apparatus for measuring a characteristic of a device under test
DE102009011542A1 (en) * 2009-03-03 2010-09-09 Heinz Prof. Dr.-Ing. Lindenmeier Antenna for receiving circularly in a direction of rotation of the polarization of broadcast satellite radio signals
US8164537B2 (en) * 2009-05-07 2012-04-24 Mororola Mobility, Inc. Multiband folded dipole transmission line antenna
CN101777704B (en) * 2010-02-21 2013-02-06 摩比天线技术（深圳）有限公司 Indoor omnidirectional antenna
US8164532B1 (en) 2011-01-18 2012-04-24 Dockon Ag Circular polarized compound loop antenna
US8654022B2 (en) 2011-09-02 2014-02-18 Dockon Ag Multi-layered multi-band antenna
WO2013064910A2 (en) 2011-11-04 2013-05-10 Dockon Ag Capacitively coupled compound loop antenna
US9324020B2 (en) * 2012-08-30 2016-04-26 Nxp B.V. Antenna structures and methods for omni directional radiation patterns
US20140313093A1 (en) 2013-04-17 2014-10-23 Telefonaktiebolaget L M Ericsson Horizontally polarized omni-directional antenna apparatus and method
JP2015070587A (en) * 2013-10-01 2015-04-13 セイコーエプソン株式会社 Antenna and electronic device
US9419347B2 (en) * 2014-05-27 2016-08-16 City University Of Hong Kong Circularly polarized antenna
TWI533522B (en) * 2014-08-08 2016-05-11 啟碁科技股份有限公司 Miniature antenna and antenna module thereof
CN110635224A (en) * 2018-06-21 2019-12-31 湘南学院 Broadband antenna based on fire sprinkler head

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Also Published As

Publication number Publication date
CA2198111C (en) 2000-01-11
CN1157061A (en) 1997-08-13
WO1997001197A1 (en) 1997-01-09
EP0776530A4 (en) 1998-06-10
US5751252A (en) 1998-05-12
AU691111B2 (en) 1998-05-07
EP0776530A1 (en) 1997-06-04
CN1081836C (en) 2002-03-27
AU5573596A (en) 1997-01-22

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20160426