公开(公告)号：US10897091B2

公开(公告)日：2021-01-19

申请号：US16247236

申请日：2019-01-14

Applicant: Ramiro A. Ramirez ,  Marcia Golmohamadi ,  Thomas M. Weller ,  Jeffrey Frolik

Inventor： Ramiro A. Ramirez ,  Marcia Golmohamadi ,  Thomas M. Weller ,  Jeffrey Frolik

IPC: H01Q21/28 ,  H01Q9/04 ,  H01Q1/36 ,  H01Q21/24 ,  H01Q9/30 ,  H01Q3/24 ,  H01Q3/26 ,  H01Q23/00

Abstract: In various embodiments, a three-dimensional (3D) printed tripolar antenna fabricated through additive manufacturing techniques to match the geometries of various commercial wireless node packages is provided. The antenna systems are designed to mitigate harsh channel conditions by implementing polarization diversity between three mutually orthogonal monopoles.

公开(公告)号：US10819321B1

公开(公告)日：2020-10-27

申请号：US16454891

申请日：2019-06-27

Applicant: David Manuel Zaiden ,  Thomas M. Weller ,  John E. Grandfield ,  Gokhan Mumcu

Inventor： David Manuel Zaiden ,  Thomas M. Weller ,  John E. Grandfield ,  Gokhan Mumcu

IPC: H03K5/00 ,  H03H11/32 ,  H03G3/30

Abstract: Disclosed is a phase shifter capable of achieving 360° phase shifts. The phase shifter includes an active balanced-to-unbalanced (balun) circuit for splitting an input signal into two signals offset in phase. The phase shifter further includes an active all-pass network electrically coupled to an output of the active balun circuit. The active all-pass network can include an active tunable inductor. A variable-gain amplifier (VGA) is electrically coupled to an output of the active all-pass network.

公开(公告)号：US06657518B1

公开(公告)日：2003-12-02

申请号：US10164949

申请日：2002-06-06

Applicant: Thomas M. Weller ,  Matthew C. Smith ,  James W. Culver

Inventor： Thomas M. Weller ,  Matthew C. Smith ,  James W. Culver

IPC: H01P1203

CPC classification number: H01P1/2013

Abstract: According to one embodiment of the invention, a notch filter circuit includes a coplanar waveguide that includes a silicon substrate and at least one shunt stub bent at an angle to the coplanar waveguide. The notch filter circuit also includes at least one capacitor bridging at least one discontinuity of the shunt stub.

Abstract translation: 根据本发明的一个实施例，陷波滤波器电路包括共面波导，其包括硅衬底和与共面波导成一定角度弯曲的至少一个分流短截线。 陷波滤波器电路还包括桥接至少一个分流短截线不连续的至少一个电容器。

公开(公告)号：US08485722B1

公开(公告)日：2013-07-16

申请号：US12904855

申请日：2010-10-14

Applicant: Robert S. Roeder ,  Thomas M. Weller ,  Paul A. Herzig

Inventor： Robert S. Roeder ,  Thomas M. Weller ,  Paul A. Herzig

IPC: G01J5/00

CPC classification number: G01K11/006

Abstract: According to certain embodiments, a temperature measurement system includes a radiometer coupled to an antenna and a signal processor. The radiometer is operable to generate two or more signals representing electro-magnetic radiation received at a corresponding two or more differing frequencies. The signal processor receives the two or more signals from the radiometer while the antenna is placed adjacent to a surface of a substrate, and compares the two or more signals with one another to determine a brightness temperature of the substrate at a depth of the substrate from the antenna.

Abstract translation: 根据某些实施例，温度测量系统包括耦合到天线和信号处理器的辐射计。 辐射计可操作以产生表示以相应的两个或更多个不同频率接收的电磁辐射的两个或更多个信号。 信号处理器在将天线放置在与衬底表面相邻的位置处接收来自辐射计的两个或更多个信号，并且将两个或多个信号彼此进行比较，以确定衬底深度处的衬底的亮度温度 天线。

公开(公告)号：US07479864B2

公开(公告)日：2009-01-20

申请号：US11425231

申请日：2006-06-20

Applicant: Thomas M. Weller ,  David P. Fries ,  Saravana P. Natarajan

Inventor： Thomas M. Weller ,  David P. Fries ,  Saravana P. Natarajan

IPC: H01F5/00 ,  H03K9/06 ,  H03D1/00

CPC classification number: H01F5/003 ,  G01N27/023 ,  G01N27/06 ,  G01N27/07 ,  G01R27/22 ,  H01F17/0033 ,  H05K1/0272 ,  H05K1/165

Abstract: The present invention provides an apparatus and method for measuring the conductivity of a fluid employing the differential radio frequency phase detection between two embedded toroidal coils.

Abstract translation: 本发明提供一种使用两个嵌入式环形线圈之间的差分射频相位检测来测量流体的电导率的装置和方法。

公开(公告)号：US10852479B1

公开(公告)日：2020-12-01

申请号：US16138558

申请日：2018-09-21

Applicant: Venkat Rama Bhethanabotla ,  Thomas M. Weller ,  Roger Brandon Tipton ,  John Townsend Bentley ,  Eduardo Antonio Rojas

Inventor： Venkat Rama Bhethanabotla ,  Thomas M. Weller ,  Roger Brandon Tipton ,  John Townsend Bentley ,  Eduardo Antonio Rojas

IPC: G02B6/138 ,  G02B6/02 ,  G02B6/36 ,  G02B6/42 ,  G02B6/38 ,  G02B6/12 ,  B29C64/141 ,  B29C64/00

Abstract: A novel polymer optical waveguide and method of manufacturing is presented herein. A digitally manufactured process is described which utilizes a micro-dispensed UV optical adhesive as the contour guiding cladding, a fused deposition modeling technology for creating a core, additional optical adhesive to complete the cladding and a subtractive laser process to finish the two ends of the optical interconnect.

公开(公告)号：US20190221948A1

公开(公告)日：2019-07-18

申请号：US16247236

申请日：2019-01-14

Applicant: Ramiro A. Ramirez ,  Marcia Golmohamadi ,  Thomas M. Weller ,  Jeffrey Frolik

Inventor： Ramiro A. Ramirez ,  Marcia Golmohamadi ,  Thomas M. Weller ,  Jeffrey Frolik

IPC: H01Q21/28 ,  H01Q9/04

CPC classification number: H01Q21/28 ,  H01Q9/0428

Abstract: In various embodiments, a three-dimensional (3D) printed tripolar antenna fabricated through additive manufacturing techniques to match the geometries of various commercial wireless node packages is provided. The antenna systems are designed to mitigate harsh channel conditions by implementing polarization diversity between three mutually orthogonal monopoles.

公开(公告)号：US06750736B1

公开(公告)日：2004-06-15

申请号：US10193982

申请日：2002-07-12

Applicant: Thomas M. Weller ,  Matthew C. Smith ,  James W. Culver ,  Jason N. Naylor

Inventor： Thomas M. Weller ,  Matthew C. Smith ,  James W. Culver ,  Jason N. Naylor

IPC: H01P5107

CPC classification number: H01P5/1015

Abstract: According to one embodiment of the invention, a planar transmission line transition system includes a coplanar waveguide transmission line that includes a first electrical path and a second electrical path. The planar transmission line transition system also includes a transmission line stub electrically connected in series to the first electrical path of the coplanar waveguide transmission line, wherein a signal output at a first connection of the transmission line stub is phase delayed approximately 180 degrees with respect to a signal input at a second connection of the transmission line stub. The planar transmission line transition system further includes a transmission line electrically connected to the second electrical path of the coplanar waveguide transmission line and the first connection of the transmission line stub.

Abstract translation: 根据本发明的一个实施例，平面传输线过渡系统包括共面波导传输线，其包括第一电路径和第二电路径。 平面传输线转换系统还包括与共面波导传输线的第一电路串联电连接的传输线短路，其中在传输线短路的第一连接处输出的信号被相位延迟约180度 在传输线存根的第二连接处输入的信号。 平面传输线转换系统还包括电连接到共面波导传输线的第二电路和传输线短截线的第一连接的传输线。