A Traveling Wave Parametric Amplifier (TWPA) transmission line with improved bandwidth includes one or more unit cell. Each unit cell includes a capacitor to a ground and a Josephson junction in series configured to provide inductance and non-linearity. One or more dispersion resonator is coupled to the transmission line. The dispersion resonator is configured to (i) use a first harmonic mode of the resonator for resonant phase matching in the transmission line and (ii) prevent a second mode of the resonator from interacting with an intermodulation product of the transmission line.

A Traveling Wave Parametric Amplifier (TWPA) transmission line with improved bandwidth includes one or more unit cell. Each unit cell includes a capacitor to a ground and a Josephson junction in series configured to provide inductance and non-linearity. One or more dispersion resonator is coupled to the transmission line. The dispersion resonator is configured to (i) use a first harmonic mode of the resonator for resonant phase matching in the transmission line and (ii) prevent a second mode of the resonator from interacting with an intermodulation product of the transmission line.

A manufacturing method of an SMD network transformer is provided. The method includes providing a metal material sheet and a plurality of coils. The metal material sheet can include a substrate, metal PINs, and an auxiliary sheet. A left and/or right side end of the metal PINs can be connected with the auxiliary sheet. A cross-section of the metal PINs can be exposed. The coil can include a magnetic ring and a copper wire. The method can include tapping the copper wires on the coils, welding wire ends of the copper wires on the metal PINs to form welding positions, and packaging the welding positions through a glue material. The glue material can form a glue frame. The glue frame can wrap the welding positions. The method can include packaging the coils in the glue frame, cutting the auxiliary sheet, taking down the substrate and the auxiliary sheet, and bending and shaping the metal PINs to form a product.

A manufacturing method of an SMD network transformer is provided. The method includes providing a metal material sheet and a plurality of coils. The metal material sheet can include a substrate, metal PINs, and an auxiliary sheet. A left and/or right side end of the metal PINs can be connected with the auxiliary sheet. A cross-section of the metal PINs can be exposed. The coil can include a magnetic ring and a copper wire. The method can include tapping the copper wires on the coils, welding wire ends of the copper wires on the metal PINs to form welding positions, and packaging the welding positions through a glue material. The glue material can form a glue frame. The glue frame can wrap the welding positions. The method can include packaging the coils in the glue frame, cutting the auxiliary sheet, taking down the substrate and the auxiliary sheet, and bending and shaping the metal PINs to form a product.

A magnetic component is provided. The magnetic component comprises a magnetic core, a first winding and a second winding. The magnetic core includes an upper cover body and a lower cover body that are stacked. The lower cover body has a first winding column and a second winding column. The first winding is wound on the first winding column. The second winding is wound on the second winding column. The first winding column and the second winding column are spaced apart along a length direction of the magnetic component. The first winding column and the second winding column are configured deviated from each other along a width direction of the magnetic component perpendicular to the length direction.

A voltage regulator having a multiple of main stages and at least one accelerated voltage regulator (AVR) bridge is provided. The main stages may respond to low frequency current transients and provide DC output voltage regulation. The AVR bridges are switched much faster than the main stages and respond to high frequency current transients without regulating the DC output voltage. The AVR bridge frequency response range can overlap with the main stage frequency response range, and the lowest frequency to which the AVR bridges respond may be set lower than the highest frequency to which the main stages respond.

An integrated transformer, substantially symmetrical about an axis of symmetry, having first to fourth terminals and including primary and secondary coils and first and second crossing structures. The primary coil, whose two terminals are the first and second terminals, includes a first trace. The secondary coil, whose two terminals are the third and fourth terminals, includes a second trace and a third trace. The first crossing structure is formed by the second trace and a first portion of the first trace. The second crossing structure is formed by the third trace and a second portion of the first trace. The first and second terminals are on two sides of the axis of symmetry. The third and fourth terminals are on two sides of the axis of symmetry. The first and second crossing structures are substantially symmetrical about the axis of symmetry.

An integrated transformer, substantially symmetrical about an axis of symmetry, having first to fourth terminals and including primary and secondary coils and first and second crossing structures. The primary coil, whose two terminals are the first and second terminals, includes a first trace. The secondary coil, whose two terminals are the third and fourth terminals, includes a second trace and a third trace. The first crossing structure is formed by the second trace and a first portion of the first trace. The second crossing structure is formed by the third trace and a second portion of the first trace. The first and second terminals are on two sides of the axis of symmetry. The third and fourth terminals are on two sides of the axis of symmetry. The first and second crossing structures are substantially symmetrical about the axis of symmetry.

An isolation transformer includes an insulation layer and a transformer. The transformer includes a first coil and a second coil embedded in the insulation layer. The first coil and the second coil are opposed to each other in a thickness-wise direction of the insulation layer. The first coil and the second coil include non-overlapping portions that do not overlap each other in the thickness-wise direction of the insulation layer.

A transformer and a manufacturing method thereof are provided. The transformer includes a bottom structure, a top structure, and a middle structure. The bottom structure includes a bottom circuit layer embedded in a bottom insulating layer. The top structure is disposed over the bottom structure and includes a top circuit layer embedded in a top insulating layer. The middle structure is disposed between the bottom structure and the top structure and includes an insulating layer, ring-shaped metal layers, and conductive pillars. The ring-shaped metal layers are stacked in a first direction in the insulating layer. The conductive pillars are disposed in the insulating layer and on an inner side and an outer side of the stacked ring-shaped metal layers. The insulating layer electrically isolates the conductive pillars from the ring-shaped metal layers. The top circuit layer and the bottom circuit layer are electrically connected through the conductive pillars.