Title :
EO probe for simultaneous electric and magnetic near-field measurements using LiNbO3 with inverted domain
Author :
Suzuki, Eiji ; Arakawa, Satoru ; Ota, Hiroyasu ; Arai, Ken Ichi ; Sato, Risaburo ; Nakamura, Kiyoshi
Author_Institution :
Sendai Electromagn. Compatibility Res. Center, Nat. Inst. of Inf. & Commun. Technol., Sendai
Abstract :
This paper presents a new type of optical probe for simultaneous measurements of electric and magnetic near fields with high accuracy up to the gigahertz range. Its probe head consists of a loop antenna element that is doubly loaded with LiNbO3 electrooptic crystals. Using optical technology, it can work as a conventional double-loaded loop probe without metallic cables and electrical hybrid junction. We examined probe characteristics for electromagnetic field detection up to 20 GHz. We confirmed that the probe can measure electric and magnetic fields simultaneously with a high accuracy in the gigahertz range
Keywords :
electric field measurement; electro-optical devices; electromagnetic fields; lithium compounds; loop antennas; magnetic field measurement; optical materials; probes; 20 GHz; LiNbO3; LiNbO3 electrooptic crystal; conventional double loaded loop probe; electric near field measurement; electrical hybrid junction; electromagnetic field detection; loop antenna element; magnetic near field measurement; metallic cables; optical probe; Antenna measurements; Cables; Crystals; Electric variables measurement; Electromagnetic fields; Hybrid junctions; Loaded antennas; Magnetic field measurement; Magnetic heads; Probes; Electromagnetic near field; Pockels effect; electrooptic (EO) crystal; loop antenna; probe;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2004.840575
