70 results about "Radiated field" patented technology

Leaky wave antennas that can be reconfigured in pattern and / or polarization by exploiting the characteristic of metamaterial structures loaded with variable capacitor and inductors employ a Composite Right Left Handed (CRLH) unit cell with two independent DC biases used to actively change the group delay of the transmission line and the polarization of the radiated field while preserving good impedance matching. Different degrees of pattern and polarization reconfigurability are achieved by cascading multiple of these unit cells along a straight line, a circular line or a zigzag line while preserving high gain for all the antenna configurations and good impedance matching.

A hybrid method is presented by which Monte Carlo techniques are combined with iterative relaxation techniques to solve the Radiative Transfer Equation in arbitrary one-, two- or three-dimensional optical environments. The optical environments are first divided into contiguous regions, or elements, with Monte Carlo techniques then being employed to determine the optical response function of each type of element. The elements are combined, and the iterative relaxation techniques are used to determine simultaneously the radiance field on the boundary and throughout the interior of the modeled environment. This hybrid model is capable of providing estimates of the under-water light field needed to expedite inspection of ship hulls and port facilities. It is also capable of providing estimates of the subaerial light field for structured, absorbing or non-absorbing environments such as shadows of mountain ranges within and without absorption spectral bands such as water vapor or CO2 bands.

A method of using an interferometric confocal microscope to measure features of a trench or via in a substrate, wherein the interferometric confocal microscope produces a measurement beam, the method involving: focusing the measurement beam at a selected location at or near the bottom of the trench or via to excite one or more guided-wave modes within the trench or via; measuring properties of a return measurement beam that is produced when the measurement beam is focused at the selected location, wherein the return measurement beam includes a component corresponding to a radiated field from the one or more guided-wave modes that are excited within the trench; and determining the features of the trench or via from the measured properties of the return measurement beam.

An electromagnetic transponder including: a parallel oscillating circuit adapted to extracting a supply signal from a radiated field; in parallel with the oscillating circuit, several branches each including a programmable resistor and a switch; and a cyclic control element for successively turning on the switches, each resistor forming an element for storing a portion of the code stored in the transponder.

The present invention is a detection device, system and method for detecting an external electromagnetic event such as lightning or a high intensity radiated field. In an exemplary embodiment, the detection device includes a free space capacitive sensor and a protected amplifier circuit coupled with the free space capacitive sensor. The free space capacitive sensor and the protected amplifier circuit are configured to respond to a voltage waveform produced by an external electromagnetic event. The free space capacitive sensor serves as a single input capable of detecting the external electromagnetic event and the coupling of the free space capacitive sensor to the protected amplifier circuit allows subsystems in communication with the sensor and amplifier circuit to generate a coordinated response to the detected external electromagnetic event.

The present invention discloses a method which applies a nuclear radiation field theory for measuring the flyash material level, firstly the boundary condition of the flyash bucket is assured; the interface of flyash in the ash bucket is leaded to approximate to the surface-shaped radiant body, and the relationship between the boundary of the surface-shaped radiant body and the boundary condition of the ash bucket is established; according to the mathematical model of exposure rate of gamma filed at the upper part of the interface surface-shaped radiant body, the corresponding relationship between the gamma exposure rate and the height of the material level is established; the actually measured gamma exposure rate is taken into the corresponding relationship, then the ash bucket inner material level height corresponding to the gamma exposure rate is obtained. The method of the invention uses the theoretical knowledge of the nuclear radiating field, the flyash interface in the ash bucket is taken as the surface-shaped radiating body for considering, the relationship between the exposure rate of the gamma field at the upper part of the surface-shaped radiating body and the height of material level in the ash bucket is established, only with the boundary condition of the ash bucket and the measured gamma-field exposure rate the height of the material level in the ash bucket can be obtained. In the practical application the invention has the advantages of practicability, simple operation and accurate data.

The invention relates to reduced jamming between receivers and wireless power transmitters. Exemplary embodiments are directed to reducing jamming caused by radiated fields generated by wireless power transmitters. Exemplary embodiments include detecting a jamming condition of a wireless power receiving device resulting from a radiated field from a wireless power transmitter of a charging device. Such embodiments include synchronizing the wireless power coupling with communication of the wireless power receiving device. Synchronizing wireless power coupling may include wireless power coupling at a first level when the wireless power receiving device is expected to receive a signal on a communication channel. Synchronizing wireless power coupling may further include coupling at a higher rate when the wireless power receiving device is not expected to receive a signal on the communication channel.

An antenna module is described where uniform radiation pattern coverage is provided in the plane of a low profile antenna radiating element. A polarization that is orthogonal to the plane of the low profile antenna radiating element can be achieved for the radiated field. A ground plate aperture is implemented into the antenna ground plate to minimize frequency shift as the antenna is installed on metallic (conductive) and non-metallic (non-conductive) ground planes of varying sizes. This antenna system technique is applicable for use in communication systems such as a local Area network (LAN), cellular communication network, and Machine to Machine (M2M).

The invention discloses a lens type ultra-wide spectrum electromagnetic pulse radiating antenna and antenna array. The structure is simple, and a radiated field strength of a principal axis of a TEM horn antenna can be effectively improved. The antenna includes an upper pole plate and a lower pole plate; the upper pole plate and the lower pole plate form a TEM horn shape having a gradually-variedimpedance; the antenna further includes a housing, a lens and a cable head; the housing includes a bottom plate, an upper side plate and a lower side plate; start ends of the upper pole plate and thelower pole plate are connected to the bottom plate, and the start end of the upper pole plate is connected to a core wire of the cable head; one end of the upper side plate is connected to an upper edge of the bottom plate, and a lower surface of the other end of the upper side plate is connected to an aperture end of the upper pole plate; one end of the lower side plate is connected to a lower edge of the bottom plate, and an upper surface of the other end of the lower side plate is connected to an aperture end of the lower pole plate; an inner surface of the lens is a plane; an outer surfaceof the lens is a spherical surface, an ellipsoidal surface or a double curved surface; and the inner surface of the lens is fixedly connected to one side, located on the aperture end, of each of theupper side plate and the lower side plate.

A method of using an interferometric confocal microscope to measure features of a trench or via in a substrate, wherein the interferometric confocal microscope produces a measurement beam, the method involving: focusing the measurement beam at a selected location at or near the bottom of the trench or via to excite one or more guided-wave modes within the trench or via; measuring properties of a return measurement beam that is produced when the measurement beam is focused at the selected location, wherein the return measurement beam includes a component corresponding to a radiated field from the one or more guided-wave modes that are excited within the trench; and determining the features of the trench or via from the measured properties of the return measurement beam.