公开(公告)号：US5459441A

公开(公告)日：1995-10-17

申请号：US181199

申请日：1994-01-13

申请人： John G. Weber ,  Richard C. Yu

发明人： John G. Weber ,  Richard C. Yu

IPC分类号： H01P1/161 ,  H01Q13/02 ,  H01Q13/00

CPC分类号： H01Q13/0258 ,  H01P1/161

摘要： Signal propagation apparatus is formed with a waveguide cavity for propagating first and second electromagnetic signals respectively having first and second electric fields that are distinguished outside the cavity by first and second polarizations, for example orthogonal polarizations, one vertical and one horizontal. Within the cavity, the electric field lines are curved and cross one another at angles that vary as a function of location within the cavity. A pair of probes are mounted within the cavity in spaced-apart relation to each other and have orientations that differ from the orientations of the electric fields outside the cavity. In order to send or transmit signals having electric fields that are respectively vertically and horizontally polarized, for example, thereby forming an angle of 90.degree. with respect to each other, the probes lie in planes forming a dihedral angle of about 80.degree.. This structure maximizes probe-to-probe isolation and cross-polarization nulls between the first and second electric fields.

摘要翻译： 信号传播装置形成有用于传播第一和第二电磁信号的第一和第二电磁信号，所述第一和第二电磁信号具有通过第一和第二偏振区分在腔外的第一和第二电场，例如垂直偏振，一个垂直和一个水平。 在空腔内，电场线是弯曲的并以与腔内的位置的函数变化的角度交叉。 一对探针以彼此间隔开的关系安装在腔体内，并且具有不同于空腔外的电场取向的取向。 为了发送或发送具有分别垂直和水平极化的电场的信号，例如相对于彼此形成90°的角度，探针位于形成约80°的二面角的平面中。 该结构最大化了第一和第二电场之间的探针到探针隔离和交叉极化零点。

公开(公告)号：US5103237A

公开(公告)日：1992-04-07

申请号：US254379

申请日：1988-10-05

申请人： John G. Weber

发明人： John G. Weber

IPC分类号： H01Q5/00 ,  H01Q5/47 ,  H01Q15/24

CPC分类号： H01Q15/246 ,  H01Q5/47

摘要： A dual band signal receiver is provided with inner and outer relatively coaxial cylindrical waveguides electromagnetically coupled to respective upper and lower band rectangular waveguides and ports through suitable polarization switching probe assemblies. The rectangular waveguides are mounted adjacent one end of the outer cylindrical waveguide. The rotatable probe assembly of the inner cylindrical waveguide is electromagnetically coupled to the high band rectangular waveguide by a suitable transmission line extending substantially along the longitudinal axis or centerline of the outer cylindrical waveguide.

摘要翻译： 双频带信号接收机设置有通过适当的偏振切换探头组件电磁耦合到相应的上和下波段矩形波导和端口的内部和外部相对同轴的圆柱形波导。 矩形波导安装在外圆柱形波导的一端附近。 内部圆柱形波导的可旋转探针组件通过基本沿着外部圆柱形波导的纵向轴线或中心线延伸的合适的传输线电磁耦合到高频带矩形波导。

公开(公告)号：US4277281A

公开(公告)日：1981-07-07

申请号：US67079

申请日：1979-08-16

申请人： John G. Weber ,  E. Henry Chia

发明人： John G. Weber ,  E. Henry Chia

IPC分类号： B22D43/00 ,  B22D11/06 ,  B22D11/10 ,  B22D11/11 ,  B22D11/112 ,  B22D11/116 ,  B22D11/117 ,  B22D11/119 ,  B22D37/00 ,  C22B9/02 ,  C22B9/04 ,  C22B9/05 ,  C22B15/14

CPC分类号： B22D11/119 ,  C22B9/023 ,  C22B9/04 ,  C22B9/055 ,  Y02P10/234

摘要： Disclosed is apparatus for and a method of continuously filtering and optionally degassing molten copper and otherwise extracting impurities therefrom comprising disposable porous ceramic foam filtering means and means for supplying a deoxidizing or cleaning gas advantageously disposed within a chamber containing a flowing stream of molten copper.

摘要翻译： 公开了连续过滤和任选地使熔融铜脱气并从其中提取杂质的装置和方法，其中包括一次性多孔陶瓷泡沫过滤装置和用于提供有利地设置在含有流动的熔融铜流的腔室内的脱氧或清洁气体的装置。

公开(公告)号：US5748156A

公开(公告)日：1998-05-05

申请号：US649928

申请日：1996-05-16

申请人： John G. Weber

发明人： John G. Weber

IPC分类号： H01Q3/02 ,  H01Q9/16 ,  H01Q19/09 ,  H01Q3/00

CPC分类号： H01Q3/02 ,  H01Q19/09 ,  H01Q9/16

摘要： An antenna structure has a rotatable dipole array constituting a driven antenna element, a cup mounted around the dipole, a first conductor connected to and extending from the antenna, and a first dielectric mounted around the first conductor. A second conductor is mounted around the first dielectric, and a second dielectric is mounted around the second conductor. A third conductor is mounted around the second dielectric, and the first and second conductors form a quarter-wavelength transformer. The first dielectric maintains a uniform spacing between the first and second conductors, and the third conductor defines a radio-frequency coupling cavity. The second dielectric electrically enlarges the cavity. Thus the physical dimensions of the structure can be reduced without sacrifice of its electrical properties.

摘要翻译： 天线结构具有构成从动天线元件的可旋转偶极子阵列，安装在偶极子周围的杯子，连接到天线并从天线延伸的第一导体以及安装在第一导体周围的第一电介质。 第二导体围绕第一电介质安装，并且第二电介质安装在第二导体周围。 第三导体围绕第二电介质安装，并且第一和第二导体形成四分之一波长的变压器。 第一电介质在第一和第二导体之间保持均匀的间隔，并且第三导体限定射频耦合腔。 第二电介质电扩大空腔。 因此，可以减少结构的物理尺寸，而不牺牲其电性能。

公开(公告)号：US4902988A

公开(公告)日：1990-02-20

申请号：US302367

申请日：1989-01-27

申请人： Robert W. Bruns ,  Lorenzo J. Morris ,  John G. Weber ,  H. Taylor Howard

发明人： Robert W. Bruns ,  Lorenzo J. Morris ,  John G. Weber ,  H. Taylor Howard

IPC分类号： H01P1/12 ,  H01P1/165 ,  H01Q13/02 ,  H04B7/00

CPC分类号： H01P1/165

摘要： An electrically-conductive flexible probe is mounted within a wave guide that receives radio-frequency electromagnetic radiation. A leading portion of the probe has an orientation that is adjustable between two positions that are angularly displaced with respect to each other by 90.degree.. A permanent bar magnet is connected to the leading portion of probe, and an electromagnet is mounted adjacent to the bar magnet so as to be capable of being magnetically coupled to the bar magnet. The electromagnet is electrically controllable so as to control the magnetic coupling between the bar magnet and the electromagnet, move the bar magnet selectively to one of the two angular positions, and thereby correspondingly move the leading portion of the probe and cause the wave guide to transmit radio-frequency electromagnetic radiation having a selected one of two polarizations in planes that are mutually orthogonal with respect to each other and reflect radio frequency electromagnetic radiation having the other polarization.