公开(公告)号：US6121854A

公开(公告)日：2000-09-19

申请号：US295468

申请日：1999-04-19

申请人： Robert K. Griffith ,  Roland Matian

发明人： Robert K. Griffith ,  Roland Matian

IPC分类号： H01P5/12

CPC分类号： H01P5/12

摘要： A power divider includes an input port, a first output port, a second output port, a first transformer coupled between the input port and the first output port, and a second transformer coupled between the input port and the second output port. The first and second transformers each incorporates a low pass filter. The power divider further includes a ground plate disposed adjacent to the first and second transformers. The ground plate is capacitively coupled to the low pass filters of the first and second transformers for enhancing the low pass filtering characteristics of the power divider. The power divider provides low pass filtering capability while achieving a significant size reduction over conventional power dividers.

摘要翻译： 功率分配器包括输入端口，第一输出端口，第二输出端口，耦合在输入端口和第一输出端口之间的第一变压器，以及耦合在输入端口和第二输出端口之间的第二变压器。 第一和第二变压器各自包含低通滤波器。 功率分配器还包括邻近第一和第二变压器设置的接地板。 接地板电容耦合到第一和第二变压器的低通滤波器，用于增强功率分配器的低通滤波特性。 功率分配器提供低通滤波功能，同时实现了比传统功率分配器显着的尺寸减小。

公开(公告)号：US4652556A

公开(公告)日：1987-03-24

申请号：US767009

申请日：1985-08-19

申请人： Joseph E. Moore ,  Yuh-Lin Yang ,  Robert K. Griffith ,  David C. K. Chan

发明人： Joseph E. Moore ,  Yuh-Lin Yang ,  Robert K. Griffith ,  David C. K. Chan

IPC分类号： A01N41/06 ,  A01N43/10 ,  A01N47/04 ,  C07C313/18 ,  C07D333/24 ,  C07C143/72

CPC分类号： C07C255/00 ,  A01N41/06 ,  A01N43/10 ,  A01N47/04 ,  C07D333/24

摘要： Compounds of the formula: ##STR1## wherein R is aryl of 6 to 12 carbon atoms or aralkyl of 7 to 14 carbon atoms either optionally substituted with 1 to 3 substituents independently selected from lower alkyl of 1 to 6 carbon atoms, lower alkoxy of 1 to 6 carbon atoms, lower alkylthio of 1 to 6 carbon atoms, lower alkylsulfinyl of 1 to 6 carbon atoms, lower alkylsulfonyl of 1 to 6 carbon atoms, halogen, trihalomethyl, nitro, cyano or carboxyl; alkyl of 1 to 10 carbon atoms, cycloalkyl of 3 to 10 carbon atoms, lower alkenyl of 2 to 6 carbon atoms, or lower alkynyl of 2 to 6 carbon atoms, all optionally substituted with 1 to 3 halogen atoms; lower alkoxyalkylene; lower alkylene carbalkoxy; lower alkylthioalkylene; lower alkylsulfinylalkylene; or lower alkylsulfonylalkylene; R.sup.1 and R.sup.2 are independently hydrogen, lower alkyl of 1 to 6 carbon atoms, aryl of 6 to 12 carbon atoms, or thienyl, or taken together form an alkylene bridge to give a cycloalkyl group of 3 to 10 carbon atoms; and R.sup.3 is alkyl of 1 to 3 carbon atoms substituted with 3 to 6 halogen atoms or trihalovinyl are fungicidal.

摘要翻译： 下式的化合物：其中R为6至12个碳原子的芳基或7至14个碳原子的芳烷基，任选被1至3个独立地选自1至6个碳原子的低级烷基的取代基取代，1个低级烷氧基 1-6个碳原子的低级烷硫基，1至6个碳原子的低级烷基亚磺酰基，1至6个碳原子的低级烷基磺酰基，卤素，三卤甲基，硝基，氰基或羧基; 具有1至10个碳原子的烷基，3至10个碳原子的环烷基，2至6个碳原子的低级烯基或2至6个碳原子的低级炔基，全部可被1至3个卤素原子取代; 低级烷氧基亚烷基; 低级亚烷基烷氧基; 低级烷硫基亚烷基; 低级烷基亚磺酰基亚烷基; 或低级烷基磺酰基亚烷基; R 1和R 2独立地为氢，1至6个碳原子的低级烷基，6至12个碳原子的芳基或噻吩基，或一起形成亚烷基桥，得到3至10个碳原子的环烷基; R3为被3〜6个卤素原子取代的1〜3个碳原子的烷基或三卤乙烯基是杀真菌剂。

公开(公告)号：US5808528A

公开(公告)日：1998-09-15

申请号：US708594

申请日：1996-09-05

申请人： Robert K. Griffith ,  Craig R. Solis ,  Cheyenne M. Noda ,  William F. Melody

发明人： Robert K. Griffith ,  Craig R. Solis ,  Cheyenne M. Noda ,  William F. Melody

IPC分类号： H01P1/207

CPC分类号： H01P1/2016 ,  H01P1/207

摘要： An inductive strip waveguide band-pass filter includes a conductive movable wall which can be set to various positions to allow a varying "A" dimension, thereby setting controllably the center frequency of the filter over a predetermined range. If the inductive strip filter includes multiple synchronized resonant cavities, the resonant cavities remain synchronized for all positions of the movable wall. The position of the movable wall can be set manually or by a motorized control mechanism.

摘要翻译： 感应带波导带通滤波器包括可设置在各种位置以允许变化的“A”尺寸的导电可移动壁，从而可控地将过滤器的中心频率设定在预定范围内。 如果感应带式滤波器包括多个同步的谐振腔，则谐振腔保持与活动壁的所有位置同步。 可动壁的位置可以手动设定，也可以由电动控制机构设定。

公开(公告)号：US4677400A

公开(公告)日：1987-06-30

申请号：US721333

申请日：1985-04-08

申请人： Robert K. Griffith ,  T. Norman Hardy ,  Edley V. McKnight ,  Vladimir K. Vavra

发明人： Robert K. Griffith ,  T. Norman Hardy ,  Edley V. McKnight ,  Vladimir K. Vavra

IPC分类号： H01P1/18 ,  H01P5/00 ,  H01P9/00

CPC分类号： H01P1/182

摘要： A variable line extender for wave guide comprising an elongated electrically conductive housing member and an electrically conductive slide member, the slide member having a convex shaped rounded end and a U-shaped recess extending transversely continuously from one end of the slide longitudinally along one side thereof, around the rounded end, and then along the other side back to the first end, with said housing having a pair of wave guide shaped ports in register with the U-shaped recess of the slide member. Means are provided for adjusting the relative longitudinal position of the slide with respect to the housing so as to vary the length of the path between the ports.

摘要翻译： 一种用于波导的可变线扩展器，包括细长的导电外壳构件和导电滑动构件，滑动构件具有凸形的圆形端部和从其一端纵向沿着其一侧横向延伸的U形凹槽 围绕圆形端部，然后沿着另一侧回到第一端，其中所述壳体具有与滑动构件的U形凹部对准的一对波导形状的端口。 提供了用于调节滑动件相对于壳体的相对纵向位置以便改变端口之间的路径的长度的装置。