One source of VNA port mismatch is the port directivity. “Directivity” is a somewhat misleading term for an antenna engineer, but it refers to the directional coupler at the output of the VNA port; ...

Abstract: J.E. Wolfe states that he is unable to agree with him as to the equivalence of Fig. 1(a) or (b) and (c). These may be equivalent as far as impedances are concerned, but if so, then I do not ...

This repository accompanies our CVPR 2019 paper From Coarse to Fine: Robust Hierarchical Localization at Large Scale. We introduce a 6-DoF visual localization method that is accurate, scalable, and ...

WABTEC has announced a definitive agreement to acquire Dellner Couplers. The deal for the Swedish supplier of couplers, gangways and dampers is worth $US 960m in cash ...

VAST is a groundbreaking software-based video encoder platform, the first ever able to stream video over HF radio. Unlike traditional video encoder systems, VAST can operate on most x86 or Arm ...