AU2001237856A1 - A method and an apparatus for measuring the performance of antennas, mobile phones and other wireless terminals - Google Patents

A method and an apparatus for measuring the performance of antennas, mobile phones and other wireless terminals

Info

Publication number
AU2001237856A1
AU2001237856A1 AU2001237856A AU3785601A AU2001237856A1 AU 2001237856 A1 AU2001237856 A1 AU 2001237856A1 AU 2001237856 A AU2001237856 A AU 2001237856A AU 3785601 A AU3785601 A AU 3785601A AU 2001237856 A1 AU2001237856 A1 AU 2001237856A1
Authority
AU
Australia
Prior art keywords
antenna
terminal
power
under test
antennas
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.)
Abandoned
Application number
AU2001237856A
Inventor
Per-Simon Kildal
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.)
Kildal Antenna Consulting AB
Original Assignee
Kildal Antenna Consulting AB
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 SE0001158A external-priority patent/SE0001158D0/en
Application filed by Kildal Antenna Consulting AB filed Critical Kildal Antenna Consulting AB
Publication of AU2001237856A1 publication Critical patent/AU2001237856A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/08—Measuring electromagnetic field characteristics
    • G01R29/10—Radiation diagrams of antennas
    • G01R29/105—Radiation diagrams of antennas using anechoic chambers; Chambers or open field sites used therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/08—Measuring electromagnetic field characteristics
    • G01R29/0807—Measuring electromagnetic field characteristics characterised by the application
    • G01R29/0814—Field measurements related to measuring influence on or from apparatus, components or humans, e.g. in ESD, EMI, EMC, EMP testing, measuring radiation leakage; detecting presence of micro- or radiowave emitters; dosimetry; testing shielding; measurements related to lightning
    • G01R29/0821—Field measurements related to measuring influence on or from apparatus, components or humans, e.g. in ESD, EMI, EMC, EMP testing, measuring radiation leakage; detecting presence of micro- or radiowave emitters; dosimetry; testing shielding; measurements related to lightning rooms and test sites therefor, e.g. anechoic chambers, open field sites or TEM cells

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)

Abstract

An apparatus and a method are for measuring the radiation efficiency of antennas and the communication power of mobile and wireless terminals. The apparatus includes a chamber to enclose the antenna or terminal to be tested. The chamber includes walls of an inwardly reflective material, rendering the walls reflective to electromagnetic waves. The quality of the antenna or terminal is obtained by averaging the power transmitted between the antenna under test and a fixed antenna, or the power received at the fixed antenna when the terminal under test is used as a transmitter. The averaging is done over the measured power for several different positions of moving objects in the chamber and of a moving platform on which the antenna or terminal under test is located. The radiation efficiency or communication power is obtained by relating the measured average levels to those of a reference antenna or a reference terminal of known radiation efficiency or communication power.
AU2001237856A 2000-03-31 2001-02-26 A method and an apparatus for measuring the performance of antennas, mobile phones and other wireless terminals Abandoned AU2001237856A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
SE0001158 2000-03-31
SE0001158A SE0001158D0 (en) 2000-03-31 2000-03-31 A method and apparatus for measuring the performance of antennas
SE0002980A SE0002980D0 (en) 2000-03-31 2000-08-23 A method and apparatus for measuring the performance of antennas
SE0002980 2000-08-23
PCT/SE2001/000422 WO2001075460A1 (en) 2000-03-31 2001-02-26 A method and an apparatus for measuring the performance of antennas, mobile phones and other wireless terminals

Publications (1)

Publication Number Publication Date
AU2001237856A1 true AU2001237856A1 (en) 2001-10-15

Family

ID=26655054

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001237856A Abandoned AU2001237856A1 (en) 2000-03-31 2001-02-26 A method and an apparatus for measuring the performance of antennas, mobile phones and other wireless terminals

Country Status (7)

Country Link
US (2) US7444264B2 (en)
EP (1) EP1269203B1 (en)
JP (1) JP4528480B2 (en)
AT (1) ATE511097T1 (en)
AU (1) AU2001237856A1 (en)
SE (1) SE0002980D0 (en)
WO (1) WO2001075460A1 (en)

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Also Published As

Publication number Publication date
WO2001075460A1 (en) 2001-10-11
US7444264B2 (en) 2008-10-28
JP2003529983A (en) 2003-10-07
EP1269203A1 (en) 2003-01-02
SE0002980D0 (en) 2000-08-23
ATE511097T1 (en) 2011-06-15
EP1269203B1 (en) 2011-05-25
JP4528480B2 (en) 2010-08-18
US7286961B2 (en) 2007-10-23
US20060017630A1 (en) 2006-01-26
US20040183547A1 (en) 2004-09-23

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