公开(公告)号：US5949311A

公开(公告)日：1999-09-07

申请号：US18154

申请日：1998-02-03

申请人： Jerald A. Weiss ,  Donald H. Temme ,  Gerald F. Dionne

发明人： Jerald A. Weiss ,  Donald H. Temme ,  Gerald F. Dionne

IPC分类号： H01P1/215 ,  H01P1/20 ,  H01P1/217

CPC分类号： H01P1/215

摘要： In a magnetically-tunable resonator, a wave-guiding structure comprising an electromagnetic frequency filter, or component of such a filter, is placed in sufficient proximity with a magnetic structure so as to be gyromagnetically coupled therewith. The resonator is supportable of two fundamental normal modes of propagation which, in the absence of magnetic interaction are even and odd with respect to the resonator center plane of symmetry. Each normal mode possesses a spectrum of resonance frequencies. When the magnetic structure is magnetized, the formerly even and odd modes become mixed due to gyromagnetic interaction, and the resulting wave fields become elliptically polarized. With appropriate design such that the identities of the modes are preserved under conditions of resonance, this in turn results in a nonreciprocal reinforcement action in the resonator, which leads to the desired shift in resonance frequency in at least one of the two normal modes. The device is especially attractive to application in miniaturized planar microwave devices, for example MMICs, in conferring small size and weight, simplicity of structure, low power required for tuning, capability of fixed, continuous or digitally-stepped frequencies, and low-loss high-Q performance; applicable with superconducting or conventional metallic conductors.

摘要翻译： 在磁可调谐谐振器中，包括电磁频率滤波器或这种滤波器的分量的波导结构被放置成与磁性结构足够接近以便与其进行回转磁耦合。 谐振器可支持两种基本正常传播模式，在不存在磁相互作用的情况下，相对于谐振器中心对称平面是偶数和奇数。 每个正常模式都有一个共振频率谱。 当磁结构被磁化时，由于陀螺磁相互作用，原来的偶模和奇模变得混合，并且所得到的波场变成椭圆极化。 通过适当的设计使得在共振条件下保持模式的标识，这又导致谐振器中的不可逆加强作用，这导致在两种正常模式中的至少一种中共振频率的期望偏移。 该器件特别适用于小型化平面微波器件（例如MMIC），具有小尺寸和重量，结构简单，调谐所需的低功耗，固定，连续或数字阶跃频率的能力以及低损耗高 -Q表现; 适用于超导或常规金属导体。