专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4420731A Controlled voltage yttrium iron garnet (YIG) resonator apparatus 失效
标题翻译：控制电压钇铁石榴石（YIG）谐振器装置
公开(公告)号：US4420731A
公开(公告)日：1983-12-13
申请号：US291618
申请日：1981-08-10
申请人： Cristopher F. Schiebold , William R. Green
发明人： Cristopher F. Schiebold , William R. Green
IPC分类号： H01P1/218 , H01P7/00 , H03B1/00 , H03B5/18 , H03B23/00 , H03J3/16 , H01P5/04
CPC分类号： H01P1/218 , H03B5/1888 , H03B2201/0241
摘要： A controlled voltage yttrium iron garnet (YIG) resonator incorporates a clipping diode in order to maintain a constant output voltage. The clipping diode is connected either across an input or an output loop associated with the resonator. The resonator, as a result of its high Q characteristic, is insensitive to changes in capacitance of the clipping diode.
摘要翻译：控制电压钇铁石榴石（YIG）谐振器包含限幅二极管，以保持恒定的输出电压。限幅二极管通过与谐振器相关的输入或输出环路连接。由于其高Q特性，谐振器对钳位二极管的电容变化不敏感。

2. 发明授权

US5498997A Transformerless audio amplifier 失效
标题翻译：无变压器音频放大器
公开(公告)号：US5498997A
公开(公告)日：1996-03-12
申请号：US372808
申请日：1994-12-23
申请人： Cristopher F. Schiebold
发明人： Cristopher F. Schiebold
IPC分类号： H03F3/185 , H03F3/16
CPC分类号： H03F3/1855
摘要： A transformerless solid state audio amplifier which exhibits the superior linearity and saturation characteristics of a triode vacuum tube amplifier, and which has an output impedance which nominally matches the impedance of a speaker is disclosed in which the gate of a low impedance transistor having triode-like current-voltage I-V characteristics is electrically coupled to an audio input source, the drain is electrically coupled to a supply voltage, a choke is connected in series between the drain and the supply voltage, and a speaker is coupled to the drain lead in parallel with the choke. Alternatively, a high impedance current source can be used instead of the choke.
摘要翻译：公开了一种无变压器固态音频放大器，其表现出三极管真空管放大器的优异的线性度和饱和特性，并且具有名义上匹配扬声器阻抗的输出阻抗，其中具有三极管状的低阻抗晶体管的栅极电流电压IV特性电耦合到音频输入源，漏极电耦合到电源电压，扼流器串联连接在漏极和电源电压之间，并且扬声器与漏极引线并联连接 cho子或者，可以使用高阻抗电流源来代替扼流圈。

3. 发明授权

US5221912A YIG tuned band reject filter for 2-18 GHz with full one-quarter wavelength RF coupling loops 失效
标题翻译：用于2-18 GHz的YIG调谐带阻滤波器，具有全四分之一波长的RF耦合回路
公开(公告)号：US5221912A
公开(公告)日：1993-06-22
申请号：US783455
申请日：1991-10-24
申请人： William J. Keane , Cristopher F. Schiebold , Dirk M. Hoekstra
发明人： William J. Keane , Cristopher F. Schiebold , Dirk M. Hoekstra
IPC分类号： H01P1/218
CPC分类号： H01P1/218
摘要： A YIG notch filter using full RF coupling loops and having a notch filter center frequency tunable as high as 18 GHz comprising a plurality of undoped YIG spheres of much smaller volume than used in the prior art and linearly arranged in a air gap. The spheres are suspended in cavities in a nonmagnetic block which are spaced much more closely than in the prior art. The 50 ohm stripline impedance inverters formed on a substrate and connecting the RF coupling loops of the spheres used in the prior art are eliminated. The quarter-wavelength impedance inverter function necessary to fabricate a notch filter is implemented by using the RF coupling loops themselves and measuring the distance from centerline to centerline of adjacent RF coupling loops. Twin insulated wires with up to one diameter separation for the RF coupling loops are preferred with the wires soldered together between the spheres.
摘要翻译： YIG陷波滤波器使用全RF耦合回路并具有高达18GHz的陷波滤波器中心频率可调谐，其包括多个未使用的现有技术中体积比未被掺杂的YIG球体并线性排列在气隙中。球体悬挂在非磁性块中的空腔中，其与现有技术相比更密切地间隔开。消除了形成在基板上并连接现有技术中使用的球体的RF耦合回路的50欧姆带状线阻抗逆变器。制造陷波滤波器所需的四分之一波长阻抗变换器功能通过使用RF耦合回路本身并测量相邻RF耦合回路的中心线到中心线的距离来实现。对于RF耦合环，具有最多一个直径间隔的双绝缘电线是优选的，并且在球之间焊接在一起的电线。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式