Visualization of Poynting Vectors by Using Electro-Optic Probes for Electromagnetic Fields

Author

Suzuki, Eiji ; Arakawa, Satoru ; Takahashi, Masanori ; Ota, Hiroyasu ; Arai, Ken Ichi ; Sato, Risaburo

Author_Institution

TDK Corp. Tech. Center, Ichikawa

Volume

57

Issue

5

fYear

2008

fDate

5/1/2008 12:00:00 AM

Firstpage

1014

Lastpage

1022

Abstract

We visualized electromagnetic-energy flows by using newly developed electro-optic probes, which cause little interference with the surrounding electromagnetic fields. Amplitudes and phases of all electric- and magnetic-field components were measured near a coupled line and a patch antenna by the probes. The time-varying Poynting vectors near the objects were evaluated with the data and were visualized. The energy flows that are caused by crosstalk of the coupled line and that are radiated from the antenna are presented. This is the first visualization of Poynting vectors that are evaluated with only experimental data in near-field regions.

Keywords

antenna radiation patterns; electric field measurement; electro-optical devices; electro-optical effects; electromagnetic wave interference; microstrip antennas; Poynting vector visualization; coupled line crosstalk; electric-magnetic-field components; electromagnetic fields; electromagnetic-energy flow visualization; electrooptic probes; patch antenna; time-varying Poynting vectors; Crosstalk; Pockels effect; Poynting vector; electromagnetic near-field; probe; radiation; visualization;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2007.913816

Filename

4436047