IL72379A - Homotropic antenna system for portable radio - Google Patents

Homotropic antenna system for portable radio

Info

Publication number
IL72379A
IL72379A IL72379A IL7237984A IL72379A IL 72379 A IL72379 A IL 72379A IL 72379 A IL72379 A IL 72379A IL 7237984 A IL7237984 A IL 7237984A IL 72379 A IL72379 A IL 72379A
Authority
IL
Israel
Prior art keywords
antenna system
portable radio
homotropic
homotropic antenna
portable
Prior art date
Application number
IL72379A
Other languages
English (en)
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 IL72379A publication Critical patent/IL72379A/xx

Links

Classifications

    • 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
    • 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
    • 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
    • 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
    • H04B7/0805—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 with single receiver and antenna switching
    • H04B7/0814—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 with single receiver and antenna switching based on current reception conditions, e.g. switching to different antenna when signal level is below threshold

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Support Of Aerials (AREA)
  • Radio Transmission System (AREA)
IL72379A 1983-07-06 1984-07-11 Homotropic antenna system for portable radio IL72379A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/511,430 US4584709A (en) 1983-07-06 1983-07-06 Homotropic antenna system for portable radio

Publications (1)

Publication Number Publication Date
IL72379A true IL72379A (en) 1988-01-31

Family

ID=24034878

Family Applications (1)

Application Number Title Priority Date Filing Date
IL72379A IL72379A (en) 1983-07-06 1984-07-11 Homotropic antenna system for portable radio

Country Status (9)

Country Link
US (1) US4584709A (xx)
EP (1) EP0148920A1 (xx)
KR (1) KR920005099B1 (xx)
AU (1) AU3151684A (xx)
CA (1) CA1220546A (xx)
IL (1) IL72379A (xx)
IT (1) IT1179389B (xx)
MX (1) MX155466A (xx)
WO (1) WO1985000480A1 (xx)

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US6545643B1 (en) 2000-09-08 2003-04-08 3Com Corporation Extendable planar diversity antenna
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US6573868B2 (en) 2001-02-28 2003-06-03 3Com Corporation Retractable antenna for electronic devices
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ATE323978T1 (de) * 2001-03-02 2006-05-15 Fuba Automotive Gmbh Diversity-anlage zum empfang digitaler terrestrischer und/oder satelliten-funksignale für fahrzeuge
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US9755314B2 (en) 2001-10-16 2017-09-05 Fractus S.A. Loaded antenna
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CN100574470C (zh) * 2003-10-16 2009-12-23 高通股份有限公司 在无线通信系统中用多个天线提供发送和/或接收分集的方法和装置
US7039370B2 (en) * 2003-10-16 2006-05-02 Flarion Technologies, Inc. Methods and apparatus of providing transmit and/or receive diversity with multiple antennas in wireless communication systems
US7667589B2 (en) * 2004-03-29 2010-02-23 Impinj, Inc. RFID tag uncoupling one of its antenna ports and methods
US7528728B2 (en) * 2004-03-29 2009-05-05 Impinj Inc. Circuits for RFID tags with multiple non-independently driven RF ports
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Also Published As

Publication number Publication date
MX155466A (es) 1988-03-16
AU3151684A (en) 1985-02-07
US4584709A (en) 1986-04-22
WO1985000480A1 (en) 1985-01-31
IT1179389B (it) 1987-09-16
CA1220546A (en) 1987-04-14
KR920005099B1 (ko) 1992-06-26
KR850002179A (ko) 1985-05-06
EP0148920A1 (en) 1985-07-24
IT8448522A0 (it) 1984-07-06

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