Magnetic Near-Field Distribution Measurements above a Patch Antenna by Using an Optical Waveguide Probe

• TAKAHASHI Masanori

  Sendai EMC Research Center, National Institute of Information and Communications Technology (NICT)

• OTA Hiroyasu

  Sendai EMC Research Center, National Institute of Information and Communications Technology (NICT)

• ARAI Ken Ichi

  Sendai EMC Research Center, National Institute of Information and Communications Technology (NICT)

• SATO Risaburo

  Sendai EMC Research Center, National Institute of Information and Communications Technology (NICT)

抄録

A magnetic field probe consisting of a LiNbO_3 optical waveguide modulator and a loop antenna element was developed to enable accurate measurement of magnetic near-fields in the gigahertz range. The invasiveness of the probe was assessed by using it to measure the magnetic field distribution above a patch antenna operating at 2.49 GHz. The measurements were compared with those obtained using a shielded loop probe. The experimental results obtained using the probe were also compared with simulation results obtained using a finite-difference time-domain (FDTD) method. The overall results indicated that the optical waveguide probe was capable of accurately measuring magnetic near-fields with low disturbance of the measured fields.

収録刊行物

• IEICE transactions on communications

  IEICE transactions on communications 88 (8), 3140-3145, 2005-08-01

  一般社団法人電子情報通信学会

キーワード

• magnetic field probe
• optical waveguide modulator
• invasiveness
• patch antenna

詳細情報

• CRID: 1572261552223822080
• NII論文ID: 110003223032
• NII書誌ID: AA10826261
• ISSN: 09168516
• 本文言語コード: en
• データソース種別:
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