Static electricity is usually generated in the damage area of metal surface due to contact friction, and charge distribution density can reflect size, shape, relative position area. Based on this, a planar array electrostatic sensor designed detect defect this paper, shielding method, number electrodes, electrode arrangement are optimized taking account induced value, uniformity sensitivity ima...

The problem of directivity enhancement, leading to the increasing in gain over a certain desired angle arrive/departure (AoA/AoD), is considered this work. A new formulation on volumetric array proposed using rectangular coordinates describe each antenna element, and azimuth elevation angles with general element pattern. Such formulated find optimal minimum distance between antenna-elements dmi...

This article presents a new design of differentially fed substrate integrated planar antenna array with dual-polarization. Compared the traditional dual-polarized arrays, proposed has advantages simple configuration, high cross-polarization discrimination (XPD), and gain. The 2×2-element subarray via-loaded crossover structure is used, which reduces complexity antenna. operation bandwidth impro...

The problem of detecting defective turned-off elements in antenna arrays from near-field measurements is addressed. In particular, the focus here to reduce number order positively affect acquisition time. Such an issue achieved by adopting recently developed warping sampling method. Two commonly diagnostics methods, i.e, Back Transformation Method (BTM) and Matrix (MM), are considered view this...