公开(公告)号：EP0285326B1

公开(公告)日：1993-09-15

申请号：EP88302625.4

申请日：1988-03-24

Applicant: RAYTHEON COMPANY

Inventor： Dibiase, Robert ,  Waterman, Raymond C., Jr. ,  Blight, Ronald E. ,  Galani, Zvi ,  Schloemann, Ernst F.R.A.

IPC: H01P1/218

CPC classification number: H01P1/218

公开(公告)号：EP0285326A2

公开(公告)日：1988-10-05

申请号：EP88302625.4

申请日：1988-03-24

Applicant: RAYTHEON COMPANY

Inventor： Dibiase, Robert ,  Waterman, Raymond C., Jr. ,  Blight, Ronald E. ,  Galani, Zvi ,  Schloemann, Ernst F.R.A.

IPC: H01P1/218

CPC classification number: H01P1/218

Abstract: A magnetically tuned resonant circuit (10) includes a ferrimagnetic or gyromagnetic body (46) such as a YIG sphere which is disposed within a r.f. structure (30). The r.f. structure (30) is disposed between a pair of pole pieces (24,38) of a biasing magnet and flux return path (20). To reduce fluctuations in magnetic fields through the gyromagnetic body (46), the body (46) is isolated from conductive surfaces, or the bulk of conductive surfaces in the region adjacent to the magnetic body (46) are reduced. A break (131a,131b) may be provided in the electrical continuity around the r.f. structure (30). These features reduce the magnitude of thermally induced eddy current flow in conductive regions adjacent to the resonant body (46) and hence reduce random magnetic field variations which produce random variations in the frequency characteristics of the magnetically tuned resonant circuit (10).

Abstract translation: 磁调谐谐振电路（10）包括铁磁体或回旋磁体（46），例如YIG球，其设置在r.f.内。 结构（30）。 r.f. 结构（30）设置在偏置磁体的一对极片（24,38）和磁通返回路径（20）之间。 为了减少通过回旋磁体（46）的磁场的波动，主体（46）与导电表面隔离，或者与磁体（46）相邻的区域中的导体表面的体积减小。 断路（131a，131b）可以以围绕r.f的电连续性提供。 结构（30）。 这些特征减小了与谐振体（46）相邻的导电区域中的热感应涡流的大小，并且因此减小了在磁调谐的谐振电路（10）的频率特性中产生随机变化的随机磁场变化。

公开(公告)号：EP0285326A3

公开(公告)日：1988-12-28

申请号：EP88302625

申请日：1988-03-24

Applicant: RAYTHEON COMPANY

Inventor： Dibiase, Robert ,  Waterman, Raymond C., Jr. ,  Blight, Ronald E. ,  Galani, Zvi ,  Schloemann, Ernst F.R.A.

IPC: H01P01/218

CPC classification number: H01P1/218

Abstract: A magnetically tuned resonant circuit (10) includes a ferrimagnetic or gyromagnetic body (46) such as a YIG sphere which is disposed within a r.f. structure (30). The r.f. structure (30) is disposed between a pair of pole pieces (24,38) of a biasing magnet and flux return path (20). To reduce fluctuations in magnetic fields through the gyromagnetic body (46), the body (46) is isolated from conductive surfaces, or the bulk of conductive surfaces in the region adjacent to the magnetic body (46) are reduced. A break (131a,131b) may be provided in the electrical continuity around the r.f. structure (30). These features reduce the magnitude of thermally induced eddy current flow in conductive regions adjacent to the resonant body (46) and hence reduce random magnetic field variations which produce random variations in the frequency characteristics of the magnetically tuned resonant circuit (10).