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1. 发明授权

US08350629B2 Differential resonant ring oscillator utilizing magnetically tuned YIG resonators to achieve ultra low phase noise and multi-octave electronic tuning in microwave frequencies 有权
标题翻译：采用磁调谐YIG谐振器的微分谐振环形振荡器可实现微波频率的超低相位噪声和多倍频程电子调谐
公开(公告)号：US08350629B2
公开(公告)日：2013-01-08
申请号：US13060002
申请日：2009-08-20
申请人： Ronald A. Parrott , Allen A. Sweet
发明人： Ronald A. Parrott , Allen A. Sweet
IPC分类号： H03B5/18
CPC分类号： H03B5/1888
摘要： A differential resonant ring oscillator (“DRRO*) circuit using a ring oscillator topology to electronically tune the oscillator over multi-octave bandwidths. The oscillator tuning is substantially linear, because the oscillator frequency is related to the magnetic tuning of a YIG sphere, which has a resonant frequency equal to a fundamental constant multiplied by the DC magnetic field. The simple circuit topology uses half turn or multiple half turn loops magnetic coupling methods connecting a differential pair of amplifiers into a feedback loop configuration having a four port YIG tuned filter, thus creating a closed loop ring oscillator. The oscillator may use SiGe bipolar junction transistor technology and amplifiers employing heterojunction bipolar transistor technology SiGe is the preferred transitor material as it keeps the transistor's 1/f noise to an absolute minimum in order to achieve minimum RF phase noise.
摘要翻译：使用环形振荡器拓扑的差分谐振环形振荡器（DRRO *）电路，可以通过多倍频程带宽对振荡器进行电子调谐。振荡器调谐基本上是线性的，因为振荡器频率与YIG球的磁调谐有关，YIG球的谐振频率等于基波常数乘以DC磁场。简单的电路拓扑结构使用将差分放大器连接到具有四端口YIG调谐滤波器的反馈环配置的半匝或多个半匝环路磁耦合方法，从而产生闭环环形振荡器。振荡器可以使用SiGe双极结型晶体管技术和采用异质结双极晶体管技术的放大器SiGe是首选的晶体管材料，因为它将晶体管的1 / f噪声保持在绝对最小值，以获得最小的RF相位噪声。

2. 发明授权

US5959513A Microwave ferrite resonator mounting structure having reduced mechanical vibration sensitivity 失效
标题翻译：微波铁氧体谐振器安装结构具有降低的机械振动灵敏度
公开(公告)号：US5959513A
公开(公告)日：1999-09-28
申请号：US855248
申请日：1997-05-13
申请人： Ronald A. Parrott , Christopher L. London
发明人： Ronald A. Parrott , Christopher L. London
IPC分类号： H01P1/218 , H01P1/215
CPC分类号： H01P1/218
摘要： A coupling structure for a ferrite-based resonator comprises a short, stiff mounting rod and ferrite sphere are mechanically coupled to a substrate that provides support for a stiff coupling loop. The structure reduces differential movement between the sphere and the coupling loop, thereby reducing vibration-induced degradation of resonator performance. This resonator structure may be used in tunable, wideband oscillator, filter, or amplifier circuits, for example. In one embodiment, the mounting rod is a poor thermal conductor, thereby thermally isolating the sphere, which becomes nearly isothermal.
摘要翻译：用于基于铁素体的谐振器的耦合结构包括短的刚性安装杆，并且铁氧体球被机械耦合到提供对刚性耦合回路的支撑的衬底。该结构减少了球体与耦合回路之间的差动运动，从而减少了振动引起的谐振器性能下降。例如，该谐振器结构可以用在可调谐的宽带振荡器，滤波器或放大器电路中。在一个实施例中，安装杆是不良的热导体，由此热隔离球体，其几乎变成等温的。

3. 发明授权

US4247837A Multi-conductor ferromagnetic resonant coupling structure 失效
标题翻译：多导体铁磁谐振耦合结构
公开(公告)号：US4247837A
公开(公告)日：1981-01-27
申请号：US39907
申请日：1979-05-17
申请人： John A. Mezak , Ronald A. Parrott
发明人： John A. Mezak , Ronald A. Parrott
IPC分类号： H01P1/218 , H01P1/217 , H01P7/10
CPC分类号： H01P1/218
摘要： Ferromagnetic resonant devices include special coupling loops formed of multi-conductor transmission lines to increase the RF electromagnetic coupling to the ferromagnetic resonators, while decreasing coupling to spurious resonant modes.
摘要翻译：铁磁谐振装置包括由多导体传输线形成的特殊耦合回路，以增加与铁磁谐振器的RF电磁耦合，同时减少与寄生谐振模式的耦合。

4. 发明授权

US5801591A Microwave linear oscillator/amplifier utilizing a multicoupled ferrite resonator 失效
标题翻译：微波线性振荡器/放大器利用多重耦合的铁氧体谐振器
公开(公告)号：US5801591A
公开(公告)日：1998-09-01
申请号：US855169
申请日：1997-05-13
申请人： Ronald A. Parrott
发明人： Ronald A. Parrott
IPC分类号： H03B5/18
CPC分类号： H03B5/1888
摘要： A multi-octave ferrite oscillator topology that utilizes transformer coupling to provide the proper phase shift in the feedback loop. In a specific embodiment, a 10 mil YIG sphere is loosely coupled to 20 mil input and output loops, both of which are connected to a GaAs integrated circuit that includes a Darlington pair of bipolar transistors. The Darlington pair provides high gain, high output power, and low parasitic reactance up to about 10 GHz. A resistor bridge across the base of the input transistor of the Darlington pair insures a substantially real input impedance over a wide bandwidth.
摘要翻译：一个多倍频程的铁氧体振荡器拓扑，利用变压器耦合在反馈回路中提供适当的相移。在具体实施例中，10密耳YIG球松散耦合到20密耳的输入和输出环路，两者都连接到包括达林顿双极晶体管的GaAs集成电路。达林顿对提供高增益，高输出功率和高达10 GHz的低寄生电抗。位于达林顿对的输入晶体管底部的电阻桥确保了宽带宽上基本上实际的输入阻抗。

5. 发明申请

US20110148532A1 DIFFERENTIAL RESONANT RING OSCILLATOR UTILIZING MAGNETICALLY TUNED YIG RESONATORS TO ACHIEVE ULTRA LOW PHASE NOISE AND MULTI-OCTAVE ELECTRONIC TUNING IN MICROWAVE FREQUENCIES 有权
标题翻译：差分谐振振荡器利用磁性调谐YIG谐振器实现超低频噪声和微波频率的多重电子调谐
公开(公告)号：US20110148532A1
公开(公告)日：2011-06-23
申请号：US13060002
申请日：2009-08-20
申请人： Ronald A. Parrott , Allen A. Sweet
发明人： Ronald A. Parrott , Allen A. Sweet
IPC分类号： H03K3/03
CPC分类号： H03B5/1888
摘要： A differential resonant ring oscillator (“DRRO*) circuit using a ring oscillator topology to electronically tune the oscillator over multi-octave bandwidths. The oscillator tuning is substantially linear, because the oscillator frequency is related to the magnetic tuning of a YIG sphere, which has a resonant frequency equal to a fundamental constant multiplied by the DC magnetic field. The simple circuit topology uses half turn or multiple half turn loops magnetic coupling methods connecting a differential pair of amplifiers into a feedback loop configuration having a four port YIG tuned filter, thus creating a closed loop ring oscillator. The oscillator may use SiGe bipolar junction transistor technology and amplifiers employing heterojunction bipolar transistor technology SiGe is the preferred transitor material as it keeps the transistor's 1/f noise to an absolute minimum in order to achieve minimum RF phase noise.
摘要翻译：使用环形振荡器拓扑的差分谐振环形振荡器（“DRRO *”）电路可以通过多倍频程带宽对振荡器进行电子调谐。振荡器调谐基本上是线性的，因为振荡器频率与YIG球的磁调谐有关，YIG球的谐振频率等于基波常数乘以DC磁场。简单的电路拓扑结构使用将差分放大器连接到具有四端口YIG调谐滤波器的反馈环配置的半匝或多个半匝环路磁耦合方法，从而产生闭环环形振荡器。振荡器可以使用SiGe双极结型晶体管技术和采用异质结双极晶体管技术的放大器SiGe是首选的晶体管材料，因为它将晶体管的1 / f噪声保持在绝对最小值，以获得最小的RF相位噪声。

6. 发明授权

US06255918B1 Microwave ferrite resonator mounting structure having reduced mechanical vibration sensitivity 失效
标题翻译：微波铁氧体谐振器安装结构具有降低的机械振动灵敏度
公开(公告)号：US06255918B1
公开(公告)日：2001-07-03
申请号：US09295208
申请日：1999-04-01
申请人： Ronald A. Parrott , Christopher L. London
发明人： Ronald A. Parrott , Christopher L. London
IPC分类号： H01P120
CPC分类号： H03B9/142 , H01P7/00 , H03B5/1888
摘要： A coupling structure for a ferrite-based resonator comprises a short, stiff mounting rod and ferrite sphere are mechanically coupled to a substrate that provides support for a stiff coupling loop. The structure reduces differential movement between the sphere and the coupling loop, thereby reducing vibration-induced degradation of resonator performance. This resonator structure may be used in tunable, wideband oscillator, filter, or amplifier circuits, for example. In one embodiment, the mounting rod is a poor thermal conductor, thereby thermally isolating the sphere, which becomes nearly isothermal.
摘要翻译：用于基于铁素体的谐振器的耦合结构包括短的刚性安装杆，并且铁氧体球被机械耦合到提供对刚性耦合回路的支撑的衬底。该结构减少了球体与耦合回路之间的差动运动，从而减少了振动引起的谐振器性能下降。例如，该谐振器结构可以用在可调谐的宽带振荡器，滤波器或放大器电路中。在一个实施例中，安装杆是不良的热导体，由此热隔离球体，其几乎变成等温的。

7. 发明授权

US10601370B2 Ferrite resonators using magnetic biasing and spin precession 有权
公开(公告)号：US10601370B2
公开(公告)日：2020-03-24
申请号：US15536413
申请日：2015-12-17
申请人： VIDA IP, LLC , Ronald A. Parrott , Allen A. Sweet
发明人： Ronald A. Parrott , Allen A. Sweet
IPC分类号： H03B5/18 , H03B9/14 , H01P1/218 , H01P7/08
摘要： A low loss unidirectional conductive sheet using magnetic field biasing and electron spin precession for coupling RF power to ferrite resonators, comprising the step of placing a plurality of ferrite resonators in a bias magnetic field to excite the electron spins of the materials of said ferrite resonators into precession.

8. 发明授权

US5677652A Microwave ferrite resonator with parallel permanent magnet bias 失效
标题翻译：具有平行永磁偏置的微波铁氧体谐振器
公开(公告)号：US5677652A
公开(公告)日：1997-10-14
申请号：US637063
申请日：1996-04-24
申请人： Ronald A. Parrott
发明人： Ronald A. Parrott
IPC分类号： H01P7/00
CPC分类号： H01P7/00
摘要： A magnetic structure for a ferrite-based electromagnetic resonator comprises a toroidal permanent magnet which surrounds high permeability material forming a gap in which there is for example a YIG sphere which is tunably resonant in a magnetic field. The high permeability material also forms part of a magnetic circuit. A main electromagnetic coil, preferably a solenoid, surrounds the permanent magnetic structure and the high permeability material, and a modulation coil, also preferably in the form of a toroid, also surrounds the gap in the magnetic circuit.
摘要翻译：用于基于铁氧体的电磁谐振器的磁性结构包括环形永磁体，该环形永磁体包围形成间隙的高磁导率材料，其中例如在磁场中可调谐谐振的YIG球。高磁导率材料也形成磁路的一部分。主要电磁线圈，优选螺线管，围绕永磁体结构和高磁导率材料，并且调制线圈也优选为环形线圈形式，也包围磁路中的间隙。

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