2results about How to "Good decoupling effect" patented technology

The application discloses a circularly-polarized self-decoupling stacked microstrip patch antenna with wide axial ratio bandwidth, which is a layered structure and comprises first and second parallelly arranged dielectric substrates, wherein an air layer is arranged between the first and second dielectric substrates, a rectangular parasitic metal patch is arranged on the upper surface of the first dielectric substrate, and each rectangular parasitic metal patch is connected with a continuously bent metal stub; a rectangular driving metal patch is arranged on the upper surface of the second dielectric substrate, and a metal ground is arranged on the lower surface of the second dielectric substrate. The application can realize wide axial ratio bandwidth and circularly-polarized self-decoupling of the stacked microstrip patch antenna without additional decoupling structure or circuit, and has the characteristics of simple structure, wide axial ratio bandwidth, self-decoupling, multi-antenna expansion, easy integration and the like, and is suitable for satellite communication, global positioning system and mobile communication and the like.

The utility model provides magnetic resonance equipment and a radio frequency coil assembly and a radio frequency coil thereof. The radio frequency coil assembly comprises a coil main body part and a preset jumper part, the preset jumper wire part is used for placing a plurality of preset jumper wires; the coil main body part comprises a PCB, the PCB is provided with a first coil unit and a second coil unit which are overlapped, and the first coil unit and the second coil unit form a first overlapping part at the overlapping part; at least one of the first coil unit and the second coil unit is provided with a first jumper welding part; the first jumper wire welding part is provided with a first adjusting part extending in the first direction, and the first jumper wire can adjust the position where the first jumper wire and the first jumper wire welding part are welded on the first adjusting part in the first direction so as to adjust the overlapping area of the first overlapping part. According to the radio frequency coil assembly, engineering and standardization in the coil decoupling process can be achieved, the manufacturing difficulty is lowered, and the reliability and consistency of the coil are improved.