EP1309033A3 - An arrangement for radiating rf signals from a radio transmitter - Google Patents

An arrangement for radiating rf signals from a radio transmitter Download PDF

Info

Publication number
EP1309033A3
EP1309033A3 EP02023476A EP02023476A EP1309033A3 EP 1309033 A3 EP1309033 A3 EP 1309033A3 EP 02023476 A EP02023476 A EP 02023476A EP 02023476 A EP02023476 A EP 02023476A EP 1309033 A3 EP1309033 A3 EP 1309033A3
Authority
EP
European Patent Office
Prior art keywords
isolator
layers
along
elongate element
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.)
Withdrawn
Application number
EP02023476A
Other languages
German (de)
French (fr)
Other versions
EP1309033A2 (en
Inventor
Zalman Schwartzman
Ovadia Grossman
Gadi Shirazi
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.)
Motorola Solutions Inc
Original Assignee
Motorola 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
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of EP1309033A2 publication Critical patent/EP1309033A2/en
Publication of EP1309033A3 publication Critical patent/EP1309033A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P3/00—Waveguides; Transmission lines of the waveguide type
    • H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
    • H01P3/08—Microstrips; Strip lines
    • H01P3/088—Stacked transmission lines

Landscapes

  • Details Of Aerials (AREA)
  • Transmitters (AREA)

Abstract

An arrangement for radiating RF signals from a radio transmitter which comprises an antenna and an electrical isolator connected to the antenna for isolating the antenna from the transmitter, wherein the isolator includes a conducting elongate element along which RF electrical signals are fed in use, and further conductors which are not electrically connected to the elongate element, the further conductors comprising first and second conducting layers arranged with the elongate element extending between them and third and fourth conducting layers arranged with the first and second layers extending between them, the further conductors forming in use an electromagnetic shield to RF electrical signals passing along the elongate element, the antenna being connected to the elongate member of the isolator.
The layers of the isolator may be planar. The total combined effective electrical length of the first and third layers along an axis of the isolator and the total combined effective electrical length of the second and fourth layers along the axis of the isolator may be or approximate to 0.5λ, where λ is the mean wavelength of RF electrical signals to be passed in use along the elongate element. The effective electrical length of each of the first, second, third and fourth layers along the axis may be or approximate to 0.25λ.
EP02023476A 2001-11-01 2002-10-21 An arrangement for radiating rf signals from a radio transmitter Withdrawn EP1309033A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0126222 2001-11-01
GB0126222A GB2382231B (en) 2001-11-01 2001-11-01 Isolator devices for current suppression

Publications (2)

Publication Number Publication Date
EP1309033A2 EP1309033A2 (en) 2003-05-07
EP1309033A3 true EP1309033A3 (en) 2004-08-25

Family

ID=9924938

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02023476A Withdrawn EP1309033A3 (en) 2001-11-01 2002-10-21 An arrangement for radiating rf signals from a radio transmitter

Country Status (2)

Country Link
EP (1) EP1309033A3 (en)
GB (1) GB2382231B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9019057B2 (en) 2006-08-28 2015-04-28 Avago Technologies General Ip (Singapore) Pte. Ltd. Galvanic isolators and coil transducers
US8427844B2 (en) 2006-08-28 2013-04-23 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Widebody coil isolators
US9105391B2 (en) 2006-08-28 2015-08-11 Avago Technologies General Ip (Singapore) Pte. Ltd. High voltage hold-off coil transducer
US8061017B2 (en) 2006-08-28 2011-11-22 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Methods of making coil transducers
US20080278275A1 (en) 2007-05-10 2008-11-13 Fouquet Julie E Miniature Transformers Adapted for use in Galvanic Isolators and the Like
US7791900B2 (en) 2006-08-28 2010-09-07 Avago Technologies General Ip (Singapore) Pte. Ltd. Galvanic isolator
US8093983B2 (en) 2006-08-28 2012-01-10 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Narrowbody coil isolator
US7948067B2 (en) 2009-06-30 2011-05-24 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Coil transducer isolator packages
US8385043B2 (en) 2006-08-28 2013-02-26 Avago Technologies ECBU IP (Singapoare) Pte. Ltd. Galvanic isolator
US7852186B2 (en) 2006-08-28 2010-12-14 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Coil transducer with reduced arcing and improved high voltage breakdown performance characteristics
US8258911B2 (en) 2008-03-31 2012-09-04 Avago Technologies ECBU IP (Singapor) Pte. Ltd. Compact power transformer components, devices, systems and methods
US8305233B2 (en) 2010-01-19 2012-11-06 Elster Solutions, Llc Planar distributed element antenna isolation board
CN102509883A (en) * 2011-12-08 2012-06-20 鸿富锦精密工业（深圳）有限公司 Antenna structure capable of suppressing interference between antennae

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2441190B1 (en) * 1974-08-28 1975-09-25 Dornier System Gmbh HF resonator for attenuating surface waves - has distance between two metal discs less than quarter wavelength
US5949383A (en) * 1997-10-20 1999-09-07 Ericsson Inc. Compact antenna structures including baluns
EP1150311A2 (en) * 2000-04-27 2001-10-31 TDK Corporation Composite magnetic material and composite dielectric material for electronic parts

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2597104B2 (en) * 1987-09-18 1997-04-02 電気興業株式会社 Mobile station diversity antenna device
GB2277832B (en) * 1993-04-27 1997-01-15 British Aerospace Thin film multi-layer interconnect
EP0916237B1 (en) * 1996-07-31 2001-01-17 Dyconex Patente Process for producing connecting conductors

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2441190B1 (en) * 1974-08-28 1975-09-25 Dornier System Gmbh HF resonator for attenuating surface waves - has distance between two metal discs less than quarter wavelength
US5949383A (en) * 1997-10-20 1999-09-07 Ericsson Inc. Compact antenna structures including baluns
EP1150311A2 (en) * 2000-04-27 2001-10-31 TDK Corporation Composite magnetic material and composite dielectric material for electronic parts

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 013, no. 301 (E - 785) 11 July 1989 (1989-07-11) *

Also Published As

Publication number Publication date
GB2382231B (en) 2003-12-24
GB2382231A (en) 2003-05-21
EP1309033A2 (en) 2003-05-07
GB0126222D0 (en) 2002-01-02

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