A method for atom-based closed-loop control includes exciting atoms of a gas into one or more Rydberg states, applying one or more signal processing functions to the one or more Rydberg states, and regulating a characteristic of the applied one or more signal processing functions based on, at least in part, a response of the one or more Rydberg states to the one or more signal processing functions. A system for internal quantum-state-space interferometry includes an atomic receiver, an interferometric pathway, and a detector. The interferometer includes an atomic vapor with first atomic states and second atomic states. The interferometric pathway from RF phases between the first and second atomic states is closed by a quantum-state-space. The detector is configured to detect a readout of an interferometric signal. Embodiments include atom-based automatic level control, baseband processors, phase-locked loops, voltage transducers, raster RF imagers and waveform analyzers.

The present exemplary embodiments provide a signal detection circuit and a sensor which improve a quality factor of a resonator by modeling an initial state of the resonator using an attenuator and a phase shifter which are modeling paths and significantly change a transmission coefficient of the resonator even with a small variation of an object to be measured.

In an electromagnetic environment analysis system, an image creation unit creates an image for displaying information relevant to a measurement value in a position associated with a measurement position of each of the measurement values. A partition judgment unit judges a partition corresponding to the measurement position of each of the measurement values in a plurality of partitions forming a display range of the information relevant to the measurement value in the image, based on position information. A display information determination unit determines information relevant to the display of the partition, based on the measurement value corresponding to the partition. In a case where two or more measurement values measured at timings different from each other correspond to one partition, the display information determination unit calculates a representative value from the two or more measurement values, and determines information to be displayed in the partition, based on the representative value.

A detection device for detecting and characterizing biological energy fields emitted by biological specimens is configured to collect and analyze an electromagnetic signal that includes millimeter-length waves generated by the interaction of atmospheric plasma with torsion waves of the biological energy field. The device performs spectral analysis on the millimeter waves to determine characteristics of the corresponding torsion waves that generated them. An array of several hundred non-thermal plasma plumes are placed directly in front of a circular horn. A switchable circular polarizer is used to select left hand circular, linear or right hand circular polarization. A low noise frequency converter allows a noise temperature of less than 1150 K. A frequency scan and averaging algorithm is developed to characterize noise temperature versus frequency, comparing signal and noise levels between plasma on and plasma off, and switching polarization sense.

A detection and measurement unit for detecting electromagnetic interference, the detection and measurement unit being configured to receive a representative digital signal. The detection and measurement unit includes a detection subunit configured to compare the amplitude of the representative digital signal with a first triggering threshold and a second stopping threshold. The second stopping threshold corresponds to an amplitude less than that of the first triggering threshold. The detection subunit is configured to detect an electromagnetic pulse on each detection of the passage of the amplitude of the representative digital signal through the second stopping threshold in a falling edge after the amplitude of the representative digital signal.

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.

A method of simulating an effect of interactions between a device under test and a scattering object by of a hybrid over-the-air (OTA) test system is described. The method includes the steps of determining at least one radiation parameter of the device under test, wherein the at least one radiation parameter is associated with electromagnetic waves emitted by the device under test; determining an equivalent source on a Huygens surface based on the at least one determined radiation parameter, wherein the equivalent source is associated with the device under test; assigning material properties to a Huygens box confined by the Huygens surface, wherein the material properties are associated with at least one of reflection of electromagnetic waves and absorption of electromagnetic waves; and simulating an electromagnetic interaction between the device under test and the scattering object based on the determined equivalent source and based on the assigned material properties.

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.

An electronic device is provided that includes a substrate for receiving communication circuitry, and an antenna coupled to the substrate and configured to provide a signal to the communication circuitry. The electronic device also includes one or more processors, and a data storage device having executable instructions accessible by the one or more processors. Responsive to execution of the instructions, the one or more processors are configured to monitor the antenna or the communication circuitry to detect the signal, and prompt a communication related to the antenna in response to not detecting the signal or detecting a degraded signal.

The present disclosure provides a beam synthesis method for measuring an array antenna. The method includes: obtaining a phase, an amplitude, and related distance values of each antenna unit, where the related distance values include a first distance value and a second distance value; calculating a phase directivity pattern of each antenna unit, and compensating the phase directivity pattern of each antenna unit based on the phase and the first distance value of each antenna unit, to obtain a phase error value of each antenna unit; and synthesizing radio frequency signals of a plurality of antenna units based on the phase, the amplitude, the second distance value, and the phase error value of each antenna unit, to obtain an antenna beam.