4 results about "Ferrite substrate" patented technology

This utility model discloses a microstrip circulator, including a ferrite substrate and a signal conductor connected to one end face of the ferrite substrate; it also includes a side conductor and a pin; one end of the side conductor is connected to the signal conductor, and the other end is connected to the pin; the side conductor is located on the side of the ferrite substrate, and the pin is located on the side of the ferrite substrate away from the signal conductor. This microstrip circulator uses a side conductor and pins instead of existing metallized vias, and uses the side conductor and pins to connect the signal conductor and the conductor located at the other end of the ferrite substrate, which helps to simplify the manufacturing process, shorten production time, and reduce production costs.

The application discloses a composite gyromagnetic ferrite substrate material for an LTCF phase shifter and belongs to the technical field of electronic ceramic materials. 4+ 3+ 3+ The main LiZn ferrite is selected from Ti 4+ , Mn 3+ , Bi 3+ ion substituted iron-deficient formula, which ensures low-temperature sintering and has high saturation magnetization and low ferromagnetic resonance line width; the auxiliary SrM ferrite is selected from micro-nano structure particles with high Curie temperature, the SrM ferrite with the structure has high sintering activity, and is beneficial to forming a multiple dense microstructure mainly with fine grains in the low-temperature sintering process, so that the material has high residual magnetism ratio and high saturation magnetization.

This invention discloses a magnetic clipping antenna based on nonlinear loss effects, belonging to the field of electromagnetic protection technology. The antenna includes a ferrite substrate, a ground layer, a permanent magnet, and a microstrip structure. The ferrite substrate exhibits tensor permeability characteristics under a DC bias magnetic field, utilizing the spin wave nonlinear loss effect to achieve adaptive attenuation of high-power signals. The microstrip structure employs a helical radiator, which enhances the local radio frequency magnetic field, reduces the nonlinear effect trigger threshold, and improves clipping efficiency. This invention integrates antenna radiation functionality with high-power microwave clipping protection functionality, featuring simple structure, high power capacity, low small-signal transmission loss, and high-power adaptive clipping, effectively achieving electromagnetic protection at the front end of electronic systems.

The application relates to a C-band self-biased circulator with a high-frequency filtering function and relates to the technical field of microwave / millimeter wave passive devices. The circulator comprises a composite substrate and a microstrip circuit formed on the composite substrate; wherein the composite substrate is obtained by gradually embedding a first ferrite substrate, a second ferrite substrate and a dielectric substrate in a concentric circle mode from inside to outside. The ferrite substrate is composed of a high-saturation-magnetization ferrite inner core and a low-saturation-magnetization ferrite outer ring, the difference in permeability of the two can excite a perimeter mode at the boundary, and the working bandwidth of the circulator can be significantly widened. Meanwhile, the center circle is matched with an asymmetric stepped impedance transformer, which not only ensures high isolation and good matching of the main band, but also forms a controlled filtering / trap function in the high-frequency band, thereby realizing the dual functions of 'band pass + band out suppression', and facilitating the system to suppress high-frequency interference or meet the multi-frequency coexistence requirement.