An information handling system includes a data radio connected to an antenna system, and a proximity sensor connected to a proximity sensor probe. An antenna controller (AC) may determine whether a capacitance measurement coarsely indicates a specific antenna configuration or a coarse fault; and configure, when the capacitance measurement indicates a coarse fault, a data radio to operate at a failsafe radio transmit power level; determine, when the capacitance measurement indicates the specific antenna configuration, whether a detail capacitance measured with respect to the antenna system indicates proper antenna configuration or an out-of-range value; configure, when the detail capacitance indicates proper antenna configuration, the data radio to operate normally; and configure, when the detail capacitance indicates an out-of-range value, the data radio to operated in a mode where a performance parameter of the data radio is particularly monitored.

The disclosure includes a method of diagnosing a grounding system of a structure that includes a charge collecting structure conductively connected to the ground via a grounding path, where diagnosing involves an act of monitoring output of a voltage and/or a current and/or an electrostatic detector connected to the grounding path.

The present disclosure generally relates to an anechoic chamber for testing a device under test over-the-air, a system, and a method. The anechoic chamber includes at least one reflecting surface being configured to variably manipulate in a defined manner at least one reflection process of at least one electromagnetic wave usable for testing the device under test.

The present invention discloses an electromagnetic wave spatial analysis method based on multi-level dipole group modeling. The electromagnetic wave spatial analysis method includes the following steps: S1, obtaining a magnetic dipole group according to three-phase loops of power grids of various different voltage levels, and obtaining spatial coordinates of the magnetic dipole group according to the longitudes and latitudes as well as the altitudes of the power grids of various voltage levels; S2, calculating the loop length of each three-phase magnetic dipole according to the spatial coordinates of the magnetic dipole group, and obtaining a multi-level magnetic dipole group according to the loop lengths; S3, obtaining the current corresponding to the voltage on power transmission loops in the power grids of various voltage levels at different levels according to the installed capacities of the power grids of various voltage levels in different countries; S4, building a multi-level dipole model according to the multi-level magnetic dipole group and the current; and S5, solving the multi-level dipole model to obtain spatial power frequency electromagnetic wave distribution. The altitude factor of grid distribution is added in the present invention, and the power grids are divided into multiple levels for modeling analysis respectively, thereby increasing the analytical accuracy of power frequency electromagnetic waves.

The disclosure relates to technology for testing parameters of an antenna under test. The technology includes an antenna test bed, reference antenna and turntable for supporting the device and antenna under test. The turntable may be used to test the response of the antenna under test at different azimuth angles. Additionally, the reference antenna and turntable are integrated into a single test bed platform to ensure consistency and repeatability of test results.

A method employs an unmanned aerial vehicle to carry an electromagnetic field measurement system to overcome environmental obstacles in measuring environmental electromagnetic field. The electromagnetic field measurement system senses the electromagnetic field of a spatial position in the environment to generate a sensing signal, then processes the sensing signal to remove the high-frequency electromagnetic interference generated by the operation of the unmanned aerial vehicle itself from the sensing signal, and converts the processed sensing signal into a digital signal. The digital signal is processed to extract at least one wave according to a fundamental frequency and a harmonic order, thereby removing the low-frequency electromagnetic interference from the digital signal. The extracted wave is employed in calculating an environmental electromagnetic field value of the spatial location.

A device provides high impedance contact pads for an electrostatic charge sensor. The contact pads are shared between the electrostatic charge sensor and drivers. The contact pads are set to a high impedance state by reducing current leakage through the drivers. Compared to electrostatic charge sensor with low impedance contact pads, the electrostatic charge sensor disclosed herein has high sensitivity, and is able to detect weak electrostatic fields.

An electric field gradient sensor is presented, having a sensor body having an outer surface; and a plurality of electrodes distributed over the outer surface, each electrode having an electrode surface facing outward from the surface. The plurality of electrodes are arranged forming a plurality of electrode pairs, each electrode pair formed by a first electrode and a second electrode located on opposite sides of the sensor body. This sensor enables three-dimensional measurements of the electric field gradient along structures located in an electrically conductive medium, such as subsea structures, for example for monitoring the cathodic protection of such structure.

An embodiment integrated circuit includes a first electromagnetic pulse detection device that comprises a first loop antenna formed in an interconnection structure of the integrated circuit, a first end of the first antenna being connected to a first node of application of a power supply potential and a second end of the antenna being coupled to a second node of application of the power supply potential, and a first circuit connected to the second end of the first antenna and configured to output a first signal representative of a comparison of a first current in the first antenna with a first threshold.

A method, system and apparatus for compensating for non-ideal isotropic behavior of a field probe are disclosed. A method includes, during a calibration procedure, for each of a plurality of positions of the field probe relative to a source, each position denoted by a set of angles (θ, ϕ), performing the following steps: measuring a field by the sensors of the probe, storing the measurements and the set of angles (θ, ϕ) for each measurement, computing a correction factor for the set of angles (θ, ϕ) based on the measurement, and storing the correction factors. During a measurement procedure, each sensor measures a component of the field. A set of angles is determined based on the sensor measurements, and a correction factor is determined based on the set of angles. The correction factor may then be multiplied by the sensor measurements to obtain the corrected field measurements.