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WO2000035124A2 - Systeme a deux antennes - Google Patents

Systeme a deux antennes Download PDF

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Publication number
WO2000035124A2
WO2000035124A2 PCT/DK1999/000688 DK9900688W WO0035124A2 WO 2000035124 A2 WO2000035124 A2 WO 2000035124A2 DK 9900688 W DK9900688 W DK 9900688W WO 0035124 A2 WO0035124 A2 WO 0035124A2
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
antennas
mobile communication
communication device
signal processing
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.)
Ceased
Application number
PCT/DK1999/000688
Other languages
English (en)
Other versions
WO2000035124A3 (fr
Inventor
Torben Amtoft
Ion Margvardsen
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.)
Telital R&D Denmark AS
Original Assignee
Telital R&D Denmark AS
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 Telital R&D Denmark AS filed Critical Telital R&D Denmark AS
Priority to CA002355594A priority Critical patent/CA2355594A1/fr
Priority to AU16489/00A priority patent/AU1648900A/en
Priority to EP99959243A priority patent/EP1138130A2/fr
Publication of WO2000035124A2 publication Critical patent/WO2000035124A2/fr
Publication of WO2000035124A3 publication Critical patent/WO2000035124A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0602—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using antenna switching
    • H04B7/0608—Antenna selection according to transmission parameters
    • 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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827—Portable transceivers
    • H04B1/3833—Hand-held transceivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/10—Polarisation diversity; Directional diversity

Definitions

  • the antennas are dual-band antennas, both operating at more than one band of frequencies .
  • one or both antennas are implemented as external antennas.
  • Single or dual -band antennas are also a possibility.
  • Figure 1 shows the preferred embodiment of the dual directive antenna system.
  • Other more complex systems with PIN-diodes could be devised.
  • One advantage of these systems is the possibility of using one antenna/resonator for both directions and thereby save space.
  • the resulting input impedance of the antenna will change and the impedance matching of the antenna with respect to the impedance of the output amplifier will temporarily be lost. This lack of adjustment will result in the connected antenna 59a or 59b reflecting part of the incoming signal back to the amplifier 50.
  • FIG. 5 shows the flowchart of the algorithm for selecting which antenna to use as a transmitting antenna for the next transmitted burst.
  • the transmission antenna for each band is selected separately by this algorithm.
  • the algorithm is based on the same principles as the transmitting antenna selection algorithm described above, but, m this case, the assessment of a signal quality is based on existing parameters which derive from the GSM protocol .

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
  • Support Of Aerials (AREA)
  • Transceivers (AREA)

Abstract

L'invention concerne un dispositif de communications mobiles ayant une enceinte (15), qui comprend un système d'antenne et un système de traitement des signaux couplé au système d'antenne. Le système d'antenne comprend au moins deux antennes (1, 2) qui présentent chacune un diagramme de rayonnement différent. L'avantage considérable de l'invention est que ce dispositif peut automatiquement choisir l'antenne (1, 2) dont le diagramme de rayonnement est approprié à un environnement spécifique.
PCT/DK1999/000688 1998-12-08 1999-12-08 Systeme a deux antennes Ceased WO2000035124A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA002355594A CA2355594A1 (fr) 1998-12-08 1999-12-08 Systeme a deux antennes
AU16489/00A AU1648900A (en) 1998-12-08 1999-12-08 Dual antenna system
EP99959243A EP1138130A2 (fr) 1998-12-08 1999-12-08 Systeme a deux antennes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA199801625 1998-12-08
DKPA199801625 1998-12-08

Publications (2)

Publication Number Publication Date
WO2000035124A2 true WO2000035124A2 (fr) 2000-06-15
WO2000035124A3 WO2000035124A3 (fr) 2000-10-19

Family

ID=8106662

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK1999/000688 Ceased WO2000035124A2 (fr) 1998-12-08 1999-12-08 Systeme a deux antennes

Country Status (5)

Country Link
EP (1) EP1138130A2 (fr)
CN (1) CN1329781A (fr)
AU (1) AU1648900A (fr)
CA (1) CA2355594A1 (fr)
WO (1) WO2000035124A2 (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1211749A1 (fr) * 2000-12-01 2002-06-05 Nec Corporation Téléphone cellulaire portable et pliable
WO2005120107A1 (fr) 2004-06-02 2005-12-15 Research In Motion Limited Dispositif de radiocommunication mobile comprenant un dispositif d'entree/sortie auxiliaire monte sur le dessus, et une antenne montee sur le fond
GB2416924A (en) * 2004-07-29 2006-02-08 Draeger Safety Ag & Co Kgaa Radio communication method and device with antennae arranged close to a body
US7429959B2 (en) 2004-07-29 2008-09-30 Dräger Safety AG & Co. KGaA Process and device for the radio transmission of signals generated near the body
EP2293379A1 (fr) * 2009-07-31 2011-03-09 Research In Motion Limited Antenne intégrée et protection du débit électrostatique
US8406825B2 (en) 2009-07-31 2013-03-26 Research In Motion Limited Integrated antenna and electrostatic discharge protection
WO2014145162A3 (fr) * 2013-03-15 2014-12-24 Alexandre Dupuy Association d'antennes directionnelles, d'antenne(s) cpl et d'un ou plusieurs amplificateurs détecteurs logarithmiques de réception pour applications siso et mimo
US9048943B2 (en) 2013-03-15 2015-06-02 Dockon Ag Low-power, noise insensitive communication channel using logarithmic detector amplifier (LDA) demodulator
US9263787B2 (en) 2013-03-15 2016-02-16 Dockon Ag Power combiner and fixed/adjustable CPL antennas
US9503133B2 (en) 2012-12-03 2016-11-22 Dockon Ag Low noise detection system using log detector amplifier
US9590572B2 (en) 2013-09-12 2017-03-07 Dockon Ag Logarithmic detector amplifier system for use as high sensitivity selective receiver without frequency conversion
US9684807B2 (en) 2013-03-15 2017-06-20 Dockon Ag Frequency selective logarithmic amplifier with intrinsic frequency demodulation capability
US11082014B2 (en) 2013-09-12 2021-08-03 Dockon Ag Advanced amplifier system for ultra-wide band RF communication
US11183974B2 (en) 2013-09-12 2021-11-23 Dockon Ag Logarithmic detector amplifier system in open-loop configuration for use as high sensitivity selective receiver without frequency conversion

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2192788A3 (fr) * 2003-12-30 2010-08-04 Sennheiser Electronic GmbH & Co. KG Microphone numérique
CN1889590B (zh) * 2006-07-18 2013-06-19 胡淑欣 防辐射移动终端
CN103118408B (zh) * 2011-11-16 2016-02-17 普天信息技术研究院有限公司 小区测量方法、小区测量和切换的方法、装置及系统

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59181732A (ja) * 1983-03-31 1984-10-16 Toshiba Corp 携帯用無線機におけるダイバ−シチ−受信方式
IL116423A0 (en) * 1995-12-15 1996-03-31 Geotek Communication Inc A portable radio terminal having diversity reception antennas
JPH09219676A (ja) * 1996-02-14 1997-08-19 Kyocera Corp 携帯無線機
JPH09247031A (ja) * 1996-03-05 1997-09-19 Nec Corp 携帯用無線装置

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7031744B2 (en) 2000-12-01 2006-04-18 Nec Corporation Compact cellular phone
EP1211749A1 (fr) * 2000-12-01 2002-06-05 Nec Corporation Téléphone cellulaire portable et pliable
US7405703B2 (en) 2004-06-02 2008-07-29 Research In Motion Limited Mobile wireless communications device comprising a top-mounted auxiliary input/output device and a bottom-mounted antenna
EP1757127A4 (fr) * 2004-06-02 2007-06-27 Research In Motion Ltd Dispositif de radiocommunication mobile comprenant un dispositif d'entree/sortie auxiliaire monte sur le dessus, et une antenne montee sur le fond
WO2005120107A1 (fr) 2004-06-02 2005-12-15 Research In Motion Limited Dispositif de radiocommunication mobile comprenant un dispositif d'entree/sortie auxiliaire monte sur le dessus, et une antenne montee sur le fond
US7612726B2 (en) 2004-06-02 2009-11-03 Research In Motion Limited Mobile wireless communications device comprising a top-mounted auxiliary input/output device and a bottom-mounted antenna
US7839343B2 (en) 2004-06-02 2010-11-23 Motorola, Inc. Mobile wireless communications device comprising a top-mounted auxiliary input/output device and a bottom-mounted antenna
GB2416924A (en) * 2004-07-29 2006-02-08 Draeger Safety Ag & Co Kgaa Radio communication method and device with antennae arranged close to a body
GB2416924B (en) * 2004-07-29 2007-04-25 Draeger Safety Ag & Co Kgaa Method and device for the radio transmission of signals generated close to the body
US7429959B2 (en) 2004-07-29 2008-09-30 Dräger Safety AG & Co. KGaA Process and device for the radio transmission of signals generated near the body
EP2293379A1 (fr) * 2009-07-31 2011-03-09 Research In Motion Limited Antenne intégrée et protection du débit électrostatique
US8406825B2 (en) 2009-07-31 2013-03-26 Research In Motion Limited Integrated antenna and electrostatic discharge protection
US9621203B2 (en) 2012-12-03 2017-04-11 Dockon Ag Medium communication system using log detector amplifier
US9503133B2 (en) 2012-12-03 2016-11-22 Dockon Ag Low noise detection system using log detector amplifier
US9236892B2 (en) 2013-03-15 2016-01-12 Dockon Ag Combination of steering antennas, CPL antenna(s), and one or more receive logarithmic detector amplifiers for SISO and MIMO applications
US9684807B2 (en) 2013-03-15 2017-06-20 Dockon Ag Frequency selective logarithmic amplifier with intrinsic frequency demodulation capability
US9356561B2 (en) 2013-03-15 2016-05-31 Dockon Ag Logarithmic amplifier with universal demodulation capabilities
US9397382B2 (en) 2013-03-15 2016-07-19 Dockon Ag Logarithmic amplifier with universal demodulation capabilities
US9048943B2 (en) 2013-03-15 2015-06-02 Dockon Ag Low-power, noise insensitive communication channel using logarithmic detector amplifier (LDA) demodulator
US11012953B2 (en) 2013-03-15 2021-05-18 Dockon Ag Frequency selective logarithmic amplifier with intrinsic frequency demodulation capability
WO2014145162A3 (fr) * 2013-03-15 2014-12-24 Alexandre Dupuy Association d'antennes directionnelles, d'antenne(s) cpl et d'un ou plusieurs amplificateurs détecteurs logarithmiques de réception pour applications siso et mimo
US9263787B2 (en) 2013-03-15 2016-02-16 Dockon Ag Power combiner and fixed/adjustable CPL antennas
US10333475B2 (en) 2013-09-12 2019-06-25 QuantalRF AG Logarithmic detector amplifier system for use as high sensitivity selective receiver without frequency conversion
US9590572B2 (en) 2013-09-12 2017-03-07 Dockon Ag Logarithmic detector amplifier system for use as high sensitivity selective receiver without frequency conversion
US11050393B2 (en) 2013-09-12 2021-06-29 Dockon Ag Amplifier system for use as high sensitivity selective receiver without frequency conversion
US11082014B2 (en) 2013-09-12 2021-08-03 Dockon Ag Advanced amplifier system for ultra-wide band RF communication
US11095255B2 (en) 2013-09-12 2021-08-17 Dockon Ag Amplifier system for use as high sensitivity selective receiver without frequency conversion
US11183974B2 (en) 2013-09-12 2021-11-23 Dockon Ag Logarithmic detector amplifier system in open-loop configuration for use as high sensitivity selective receiver without frequency conversion

Also Published As

Publication number Publication date
AU1648900A (en) 2000-06-26
CA2355594A1 (fr) 2000-06-15
CN1329781A (zh) 2002-01-02
WO2000035124A3 (fr) 2000-10-19
EP1138130A2 (fr) 2001-10-04

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