The invention pertains to advances in constructing predetermined magnets from appropriate magnetic material that allows for focusing the magnetic field in a target region.

The invention pertains to advances in real-time methods in nuclear magnetic resonance by offering: a new real-time processing method for nuclear magnetic resonance (NMR) spectrum acquisition without external resonator(s), which remains stable despite magnetic field fluctuations, a new processing method for nuclear magnetic resonance spectrum acquisition, which remains stable despite magnetic field fluctuations and resonator stability, a new method of constructing predetermined magnets from appropriate magnetic material that allows for focusing the magnetic field in a target region, a new dual frequency dynamic nuclear polarization (DNP) generator that polarizes the spin of electrons and acts as an NMR transmitter.

An amplifier includes a printed circuit board that includes an output terminal for outputting a electrical signal to an outside and a bias terminal for receiving a bias of the electrical signal from the outside, and an integrated circuit, a capacitor, an inductor, and a ferrite bead element mounted on the printed circuit board. The integrated circuit includes a driving circuit and an output end, and outputs the electrical signal generated by the driving circuit from the output end. The capacitor is connected between the output end and the output terminal A series circuit including the inductor and the ferrite bead element connected to each other in series, the inductor is connected to the output end, and the ferrite bead element is connected to the bias terminal.

An amplifier includes a printed circuit board that includes an output terminal for outputting a electrical signal to an outside and a bias terminal for receiving a bias of the electrical signal from the outside, and an integrated circuit, a capacitor, an inductor, and a ferrite bead element mounted on the printed circuit board. The integrated circuit includes a driving circuit and an output end, and outputs the electrical signal generated by the driving circuit from the output end. The capacitor is connected between the output end and the output terminal A series circuit including the inductor and the ferrite bead element connected to each other in series, the inductor is connected to the output end, and the ferrite bead element is connected to the bias terminal.

A radio-frequency assembly is described which can be used in communication satellites, for example. The radio-frequency assembly contains a signal source in the form of a semiconductor amplifier output, an impedance matching filter, and a radio-frequency waveguide. The impedance matching filter is connected to the semiconductor amplifier output on the input side and to the radio-frequency waveguide on the output side. The impedance matching filter has a different impedance value on the input side from that on the output side and is matched to the semiconductor amplifier output on the input side and matched to the radio-frequency waveguide on the output side. Consequently, a separate matching circuit between semiconductor amplifier output and radio-frequency waveguide is no longer necessary.

A radio-frequency assembly is described which can be used in communication satellites, for example. The radio-frequency assembly contains a signal source in the form of a semiconductor amplifier output, an impedance matching filter, and a radio-frequency waveguide. The impedance matching filter is connected to the semiconductor amplifier output on the input side and to the radio-frequency waveguide on the output side. The impedance matching filter has a different impedance value on the input side from that on the output side and is matched to the semiconductor amplifier output on the input side and matched to the radio-frequency waveguide on the output side. Consequently, a separate matching circuit between semiconductor amplifier output and radio-frequency waveguide is no longer necessary.

An amplifier device with at least one microwave tube, intended to be mounted on a satellite, includes a high voltage section directly connected to said microwave tube or tubes, a low voltage section, and a low voltage cabling assembly provided with low voltage connectors at the ends thereof connecting said low and high voltage sections.

An amplifier device with at least one microwave tube, intended to be mounted on a satellite, includes a high voltage section directly connected to said microwave tube or tubes, a low voltage section, and a low voltage cabling assembly provided with low voltage connectors at the ends thereof connecting said low and high voltage sections.

A system and associated method transfer power between a DC source and a variable load. Two power signals are extracted from the DC source at HF frequency via two self-synchronous radio frequency rectifiers/amplifiers switched by two corresponding HF switching signals having between them either a frequency difference or a phase difference controlled by a duty cycle and overlap controller. The two HF power signals are mixed in a wired, wireless, or bimodal wireless HF power link system to produce a transferred power signal based on the mixing and on manipulating the phase difference when present. A power signal conversion circuit in communication with the HF power link system produces an unfolded output power signal from the transferred power signal. The system and method allow transfer to the load of at least one of an adjustable DC power signal and an AC power signal phase locked to an existing power signal in the load.

A system and associated method transfer power between a DC source and a variable load. Two power signals are extracted from the DC source at HF frequency via two self-synchronous radio frequency rectifiers/amplifiers switched by two corresponding HF switching signals having between them either a frequency difference or a phase difference controlled by a duty cycle and overlap controller. The two HF power signals are mixed in a wired, wireless, or bimodal wireless HF power link system to produce a transferred power signal based on the mixing and on manipulating the phase difference when present. A power signal conversion circuit in communication with the HF power link system produces an unfolded output power signal from the transferred power signal. The system and method allow transfer to the load of at least one of an adjustable DC power signal and an AC power signal phase locked to an existing power signal in the load.