Abstract: A true random number generator including a transistor, a first voltage source, a second voltage source, and a comparator. The transistor has a first electrode, a second electrode, and a third electrode. Two of the electrodes are electrically connected by a channel of conductive nanomaterial. The first voltage source is electrically connected to the first electrode and the second voltage source is electrically connected to the second electrode. The comparator is electrically connected to the third electrode and is configured to classify a measured electrical property at the third electrode as either HIGH or LOW based on a comparison of the measured electrical property with a reference value. The measured electrical property varies over time due to random telegraph signals (RTSs) due to defects in the transistor.

Abstract: A true random number generator including a transistor, a first voltage source, a second voltage source, and a comparator. The transistor has a first electrode, a second electrode, and a third electrode. Two of the electrodes are electrically connected by a channel of conductive nanomaterial. The first voltage source is electrically connected to the first electrode and the second voltage source is electrically connected to the second electrode. The comparator is electrically connected to the third electrode and is configured to classify a measured electrical property at the third electrode as either HIGH or LOW based on a comparison of the measured electrical property with a reference value. The measured electrical property varies over time due to random telegraph signals (RTSs) due to defects in the transistor.

Abstract: A signal evaluation system is provided for evaluating a first EM signal and a second EM signal for use in a passive coherent location system. The signal evaluation system includes: a spectrum detecting component that detects the first EM signal and the second EM signal; a signal characterization component that generates a first characterization of the first EM signal and to generate a second characterization of the second EM signal; and a ranking component that ranks the EM signals for use in the passive coherent location system. The first characterization is based on an amplitude associated with the first EM signal and one of range resolution, Doppler resolution, and combinations thereof associated with the first EM signal. The second characterization is based on an amplitude associated with the second EM signal and one of range resolution, Doppler resolution, and combinations thereof associated with the second EM signal.

Abstract: A method to create an electromagnetic Doppler surface comprising the steps of using an array of conductive elements, wherein the conductive elements mechanically move in individual orbits, and wherein the conductive elements are configured to combine and form a Doppler surface; using mechanical, phase-induced motion as a mechanism by which to move the conductive elements in individual orbits; creating a surface with a controllable Doppler return using two-dimensional motion.

Abstract: A reconfigurable metamaterial apparatus, having a metamaterial structure capable of focusing incoming radiation, the incoming radiation having at least one of a normal incoming radiation and an off-axis incoming radiation. The metamaterial structure has a matrix frame structure and an array of elements disposed in relation to the matrix frame structure. The array has a refractive index gradient profile. Each element has a material with a specific refractive index corresponding to its location in the array; and each element has an alterability feature for facilitating selectively altering its refractive index. The alterability feature has at least one of an interchangeability feature and a tunability feature. The refractive index gradient profile is at least one of tunable and optimizable for at least one parameter of focal stength and frequency, whereby undesirable signals from the incoming radiation are wave-guidable for areal dissipation, and whereby delicate equipment is protectable.

Abstract: An optically detected power quality disturbance caused by a remote load is classified as belonging to a class of known classes of power quality disturbances. Features associated with different power quality disturbances that belong to a plurality of different known classes of power quality disturbances are learned. Cross-covariance is applied to the optically detected power quality disturbance and the different power quality disturbances that belong to the different known classes of power quality disturbances to recognize features of the optically detected power quality disturbance that at least partially match the learned features. The class of power quality disturbances among the plurality of classes of different known power quality disturbances to which the optically detected power quality disturbance belongs is determined based on the recognized features.

Abstract: A system and method provide for wireless power and/or data transfer between devices, such as coils. A first device, operatively connected to an energy source, is positioned within a wireless transmission range of a second device, which may be operatively coupled to an unmanned vehicle. Power and/or data is wirelessly transferred to/from the energy source from/to the unmanned vehicle via the first device and the second device.

Abstract: A method involves using one or more software programs to stress a powered electronic device in a test environment to induce controlled electromagnetic emissions from the powered electronic device, using the controlled electromagnetic emissions to generate an emission profile of the powered electronic device operating under stress, monitoring spurious electromagnetic emissions of the powered electronic device in an operational environment, and comparing the spurious electromagnetic emissions of the powered electronic device in the operational environment with the emission profile of the powered electronic device to determine that the powered electronic device is operating under stress in the operational environment.

Abstract: A system and method provide for wireless power and/or data transfer between devices, such as coils. A first device, operatively connected to an energy source, is positioned within a wireless transmission range of a second device, which may be operatively coupled to an unmanned vehicle. Power and/or data is wirelessly transferred to/from the energy source from/to the unmanned vehicle via the first device and the second device.

Abstract: A system and method are provided for wirelessly transmitting energy from a transmitter platform to a receiver platform. The system reduces the number of coils on the receiver platform to one, while the remaining coils are located on the transmitter platform. The spacing of the coils on the transmitting platform can be adjusted to optimize the magnetic flux transfer to the single coil on the receiving platform based on the unique distance between the transmitter and receiver platforms.

Abstract: A signal evaluation system is provided for evaluating a first EM signal and a second EM signal for use in a passive coherent location system. The signal evaluation system includes: a spectrum detecting component that detects the first EM signal and the second EM signal; a signal characterization component that generates a first characterization of the first EM signal and to generate a second characterization of the second EM signal; and a ranking component that ranks the EM signals for use in the passive coherent location system. The first characterization is based on an amplitude associated with the first EM signal and one of range resolution, Doppler resolution, and combinations thereof associated with the first EM signal. The second characterization is based on an amplitude associated with the second EM signal and one of range resolution, Doppler resolution, and combinations thereof associated with the second EM signal.

Abstract: An optically detected power quality disturbance caused by a remote load is classified as belonging to a class of known classes of power quality disturbances. Features associated with different power quality disturbances that belong to a plurality of different known classes of power quality disturbances are learned. Cross-covariance is applied to the optically detected power quality disturbance and the different power quality disturbances that belong to the different known classes of power quality disturbances to recognize features of the optically detected power quality disturbance that at least partially match the learned features. The class of power quality disturbances among the plurality of classes of different known power quality disturbances to which the optically detected power quality disturbance belongs is determined based on the recognized features.

Abstract: A transparent electromagnetic shield is fabricated by combining a metal nanomesh structure and a graphene sheet. The nanomesh structure is formed such that spacing between portions of the nanomesh provides optical transparency and also provides electromagnetic shielding. The graphene sheet is placed over the nanomesh structure and adhered to the nanomesh structure. The graphene sheet provides additional electromagnetic shielding and maintains the optical transparency.

Abstract: An antenna comprising: a driven element; an input feed coupled to the driven element wherein the input feed is configured to be connected to a receiver; a non-Foster circuit having a negative impedance, wherein the non-Foster circuit is configured to actively load the antenna at a location on the antenna other than at the input feed; and wherein the antenna fits within an imaginary sphere having a radius a, and wherein the product ka is less than 0.5, where k is a wave number.

Abstract: A system includes a first low noise amplifier, a second low noise amplifier, a local analog oscillator signal, a signal splitter, a mixer, a mixer, an analog to digital converter and a digital channelizer. The first low noise amplifier outputs a first amplified analog signal based on a received analog antenna signal at a time t0. The second low noise amplifier outputs a second amplified analog signal based on the received analog antenna signal at a time t1. The local analog oscillator signal outputs a local analog oscillator signal. The signal splitter outputs a split analog oscillator signal and a split analog oscillator signal. The mixer outputs a first mixed signal. The mixer outputs a second mixed signal. The analog to digital converter outputs a combined digital signal. The digital channelizer outputs a received signal based on the combined digital signal.

Abstract: A system and method provide for wireless power and/or data transfer between devices, such as coils. A first device, operatively connected to an energy source, is positioned within a wireless transmission range of a second device, which may be operatively coupled to an unmanned vehicle. Power and/or data is wirelessly transferred to/from the energy source from/to the unmanned vehicle via the first device and the second device.

Abstract: A wireless power transfer system includes a receive coil system nested within a transmit coil system forming a closed magnetic circuit. The transmit coil system includes a non-planar tapered transmit coil disposed within a tapered ferrite housing and a layer of insulating material surrounding the non-planar tapered transmit coil and the tapered ferrite housing. The receive coil system includes a ferrite plug comprising a column portion centrally secured to a plate portion, a non-planar receive coil wound around the column portion, a layer of insulating material surrounding the column portion and the non-planar receive coil, and a hemispherical covering surrounding the insulated column portion and non-planar receive coil. The non-planar receive coil has a smaller diameter than the non-planar tapered transmit coil. The maximum outside diameter of the hemispherical covering is less than or equal to the minimum inside diameter of the non-planar tapered transmit coil.

Abstract: Aspects of the present invention provide a system and method for using a filter controller and an adjustable narrow-band filter within each sub-band of a communication system. If a channel of the sub-band is being jammed, the filter controller will adjust the adjustable narrow-band filter to notch-filter out only the channel of the sub-band that is being jammed. In this manner, the remaining channel of the sub-band may be used for communication.

Abstract: An antenna comprising: a driven element; an input feed coupled to the driven element wherein the input feed is configured to be connected to a receiver; a non-Foster circuit having a negative impedance, wherein the non-Foster circuit is configured to actively load the antenna at a location on the antenna other than at the input feed; and wherein the antenna may be contained within an imaginary sphere having a radius a, and wherein the product ka is less than 0.5, where k is a wave number.

Abstract: Methods for establishing metamaterial transmission line (MTM TL's) for a phased array antenna can include the initial step of defining a defining a Composite Right/Left Hand (CRLH) CRLH unit cell architecture. A family of unit cells using CRLH TL microstrip architecture can be constructed so that each of the CRLH unit cells have the same physical length, but different cell phases and cell phase slopes. To do this, the stub length of each CRLH unit cell can be varied. Once the family of CRLH unit cells is constructed, different numbers of different CRLH unit cells from the family can be combined with different numbers of conventional right hand TL's, which results in TL's for a phased array antenna that each have the same overall phase and overall phase slope not only at the design frequency f0, but over the entire design frequency band for the antenna.