Study Of Electromagnetic Field Detecting Probe Using Optical Communication Elements

• Main Authors: HONG,SHAO-NAN, 洪韶男
• Other Authors: WU,SUNG-MAO
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/ga3f46

碩士 === 國立高雄大學 === 電機工程學系碩士班 === 104 === This study proposes a design of near field detecting probe, a low-cost design of a probe system measuring E-field in time-domain with single polarization up to 2.6 GHz. Most probes are designed to measure magnitude only, and typical application is exposure safety assessment. For the sack of RF transparency, optical fiber is used to replace coaxial cable to transmit the signal from the transmitter to receiver. Thus, RF-over-Fiber (RoF) technology is applied for signal transmission. VCSEL and photodiode (PD) act as the transmitter and receiver respectively. The VCSEL is powered via optical fiber with Power-over-Fiber (PoF) technology. Probes that can detect complex EM fields possess great potential for various applications because the measured fields can be further post-processed into the performance more relevant to the product design. In the future, using this design to obtain near-field to far-field transformation.