Device for electric and magnetic measurements

Abstract

Device for electric and magnetic measurements. In some embodiments, an electrical probe can be configured to include an unshielded inner conductor at an end of a coaxial assembly to allow an electrical field to induce differential-mode currents in the coaxial assembly. In some embodiments, a magnetic probe can be configured to include a loop connected to inner and outer conductors of a coaxial assembly to induce a common mode current by a change in magnetic field flux through the loop. In some implementations, such probes can be utilized to obtain near-field measurements to facilitate applications such as electromagnetic (EM) shielding designs.

What is claimed is: 
     
         1 . A probe for sensing an electromagnetic (EM) field proximate a radio-frequency (RF) device having lateral dimensions X and Y, the probe comprising:
 a coaxial assembly having a proximal end and a distal end, the coaxial assembly including an inner conductor and an outer conductive shield between the proximal and distal ends; and   a sensing element implemented at the distal end of the coaxial assembly, the sensing element configured to measure a field strength of the EM field, the sensing element having a dimension less than the lesser of the lateral dimensions X and Y to thereby allow a plurality of localized measurements of the EM field strengths associated with different locations of the RF device.