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Radio wave intensity measuring device and radio wave measuring system meetings

Foreign code F120006441
Posted date Apr 16, 2012
Country United States of America
Application number 200913056391
Gazette No. 20110128016
Gazette No. 8729909
Date of filing Jul 22, 2009
Gazette Date Jun 2, 2011
Gazette Date May 20, 2014
International application number JP2009003429
International publication number WO2010013408
Date of international filing Jul 22, 2009
Date of international publication Feb 4, 2010
Priority data
  • P2008-193845 (Jul 28, 2008) JP
  • 2009WO-JP03429 (Jul 22, 2009) WO
Title Radio wave intensity measuring device and radio wave measuring system meetings
Abstract (US8729909)
A radio wave intensity measuring device includes a radio wave absorber (100) configured to include a plane having a plurality of cells (CL11, CL12, . . . ) and to absorb a radio wave entering the plane, and a measurer (200) configured to measure radio wave intensities in a plurality of cells.
Scope of claims [claim1]
1. A radio wave intensity measuring device for measuring a radio wave intensity, said radio wave intensity measuring device comprising: a radio wave absorber that has a plane with a plurality of measurement sections, and is configured to absorb the radio wave incident on the plane; and
a measurer configured to measure radio wave intensities in the plurality of measurement sections,
wherein a measuring member is disposed in a neighborhood of each of the measurement sections,
said measurer is configured to measure the radio wave intensities in the respective measurement sections by using the measuring member disposed in the neighborhood of each of the measurement sections,
the plurality of measuring members are disposed in a matrix form, and
said radio wave intensity measuring device further comprises a polarization direction identifying unit configured to identify a polarization direction of radio wave based on an intensity of the radio wave measured by said measurer which uses partial measuring members aligned in a row direction out of the plurality of measuring members, and an intensity of the radio wave measured by said measurer which uses partial measuring members aligned in a column direction out of the plurality of measuring members.
[claim2]
2. The radio wave intensity measuring device according to claim 1, wherein said wave absorber includes a plurality of resonant circuits that absorb radio wave at a maximum level when a resonance occurs; and
further includes a resonance frequency changer that changes a resonance frequency of each of the resonant circuits.
[claim3]
3. The radio wave intensity measuring device according to claim 1, wherein said measurer includes a plurality of measuring circuits that measure respective radio wave intensities in the plurality of measurement sections almost simultaneously.
[claim4]
4. The radio wave intensity measuring device according to claim 3, further comprising a data collector configured to scan and collect a plurality of radio wave intensities measured by the respective measuring circuits.
[claim5]
5. A radio wave intensity measuring system including the radio wave intensity measuring device according to claim 4, and a display device, wherein the radio wave intensity measuring device further comprises
a transmitter configured to transmit the plurality of radio wave intensities collected by said data collector to said display device;
said display device includes
an image generator configured to generate a radio wave intensity distribution image which is an image visualized by associating the plurality of radio wave intensities with respective locations of the measurement sections based on the plurality of radio wave intensities received from said transmitter; and
a displayer configured to display the radio wave intensity distribution image generated by said image generator.
[claim6]
6. The radio wave intensity measuring system according to claim 5, wherein the plurality of measuring circuits measure respective radio wave intensities in the plurality of measurement sections for every predetermined time period,
said image generator is configured to generate the radio wave intensity distribution image based on the plurality of radio wave intensities measured by the respective plurality of measuring circuits for every predetermined time period, and
said displayer is configured to display the radio wave intensity distribution image generated by said image generator for every predetermined time period, while updating the radio wave intensity distribution image.
  • Inventor, and Inventor/Applicant
  • YAGITANI SATOSHI
  • SHIMIZU TAKAO
  • YAMANAKA YUSUKE
  • KANAZAWA UNIVERSITY
IPC(International Patent Classification)

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