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).

公开(公告)号：EP0462747B1

公开(公告)日：1997-01-29

申请号：EP91305287.4

申请日：1991-06-12

Applicant: RAYTHEON COMPANY

Inventor： Galani, Zvi ,  Waterman, Raymond C., Jr. ,  Bianchini, Michael J.

IPC: H03L7/04 ,  H03B5/18

CPC classification number: H03B9/142 ,  H03B5/1841 ,  H03B5/1882 ,  H03B2009/126 ,  H03B2200/0088 ,  H03B2200/009 ,  H03B2201/0241 ,  H03B2201/033 ,  H03B2202/076

公开(公告)号：EP0462747A1

公开(公告)日：1991-12-27

申请号：EP91305287.4

申请日：1991-06-12

Applicant: RAYTHEON COMPANY

Inventor： Galani, Zvi ,  Waterman, Raymond C., Jr. ,  Bianchini, Michael J.

IPC: H03L7/04 ,  H03B5/18

CPC classification number: H03B9/142 ,  H03B5/1841 ,  H03B5/1882 ,  H03B2009/126 ,  H03B2200/0088 ,  H03B2200/009 ,  H03B2201/0241 ,  H03B2201/033 ,  H03B2202/076

Abstract: An oscillator (10) providing predictable oscillator modulation sensitivity includes an amplifier (11) and a feedback circuit (29) disposed about the amplifier (11). The feedback circuit (11) includes a resonator (13) having a first port and a second port, and a voltage-controlled phase shifter (27) having an input port, an output port and a control port (27a), the input port of the voltage-controlled phase shifter (27) being connected to the output port of the amplifier (11) and the output port of the voltage-controlled phase shifter (27) being coupled to a port of the resonator (13). The oscillator (10) further includes a circuit (30), responsive to signals from the output of the voltage-controlled phase shifter (27) and the first port of the resonator (13), to provide a control signal (25a) to the control port (27a) of the voltage-controlled phase shifter (27) for degenerating low frequency FM noise arising within the amplifier (10).

Abstract translation: 提供可预测振荡器调制灵敏度的振荡器（10）包括设置在放大器（11）周围的放大器（11）和反馈电路（29）。 反馈电路（11）包括具有第一端口和第二端口的谐振器（13）和具有输入端口，输出端口和控制端口（27a）的电压控制移相器（27），输入端口 连接到放大器（11）的输出端口并且电压控制移相器（27）的输出端口耦合到谐振器（13）的端口的电压控制移相器（27）。 振荡器（10）还包括响应于来自电压控制移相器（27）的输出和谐振器（13）的第一端口的信号的电路（30），以向控制信号（25a）提供控制信号 电压控制移相器（27）的控制端口（27a）用于退化在放大器（10）内产生的低频FM噪声。

公开(公告)号：EP0393975A1

公开(公告)日：1990-10-24

申请号：EP90304088.9

申请日：1990-04-17

Applicant: RAYTHEON COMPANY

Inventor： Waterman, Raymond C., Jr. ,  Chiesa, John A. ,  Galani, Zvi

IPC: H03L7/22

CPC classification number: H03L7/23

Abstract: A multiple feedback loop frequency synthesizer (100) is fed by reference frequency signals (f R1 ,f R2 ), the frequency of such reference frequency signals being greater than the desired frequency separation provided by the synthesizer. With such arrangement, because the bandwidth of each of the feedback loops (102, 104) must be less than the frequency of the reference frequency signal fed to such loop, achievement of frequency separation less than the frequency of either one of the reference frequencies enables each of the feedback loops (102, 104) to have increased bandwidth and hence reduced frequency switching times and increased noise suppression. A single frequency offset generator (114) supplies an offset frequency (f os1 ) to a mixer (112) in one loop (104) in which the mixer output is divided by N for comparison in a phase/frequency detector (126) with one reference frequency (f R2 ). The output (f os2 ) of this loop (104) is used as the offset in the other, similar loop (102).

Abstract translation: 多反馈回路频率合成器（100）由参考频率信号（fR1，fR2）馈送，这种参考频率信号的频率大于由合成器提供的期望频率间隔。 通过这样的布置，由于每个反馈回路（102,104）的带宽必须小于馈送到这种回路的参考频率信号的频率，所以实现小于参考频率中的任何一个频率的频率间隔使得能够 每个反馈回路（102,104）具有增加的带宽并因此降低频率切换时间和增加的噪声抑制。 单个频率偏移发生器（114）在一个环路（104）中向混频器（112）提供偏移频率（fos1），其中混频器输出被N除以在相位/频率检测器（126）中具有一个参考 频率（fR2）。 该循环（104）的输出（fos2）用作另一个类似循环（102）中的偏移量。