公开(公告)号：US20240071694A1

公开(公告)日：2024-02-29

申请号：US17900195

申请日：2022-08-31

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Gokhan Ariturk ,  Adam Fruehling

IPC: H01H1/00 ,  H01H59/00 ,  H01P1/12

CPC classification number: H01H1/0036 ,  H01H59/0009 ,  H01P1/12 ,  H01H2001/0084

Abstract: A microelectromechanical system (MEMS) switch implemented with a coplanar waveguide. The MEMS switch includes an input terminal, an output terminal. The MEMS switch includes a beam extending between the input terminal and the output terminal. The beam includes a first edge and a second edge coupled to a gate of the MEMS switch. The beam includes a third edge proximate the input terminal. The first edge includes a first set of finger contacts proximate a first corner of the beam and a second set of finger contacts proximate a second corner of the beam. The beam includes a fourth edge proximate the output terminal, the fourth edge opposing the third edge. The MEMS switch has a first anchor coupled to the input terminal. The first anchor includes a first segment extending from a region proximate the input terminal to a region overlying the first set of finger contacts.

公开(公告)号：US20230395348A1

公开(公告)日：2023-12-07

申请号：US18344186

申请日：2023-06-29

Applicant: Qorvo US, Inc.

Inventor： Roberto Gaddi ,  Robertus Petrus Van Kampen

IPC: H01H59/00 ,  H01P1/12

CPC classification number: H01H59/0009 ,  H01P1/12

Abstract: An electrical arrangement for performing radio frequency isolation for microelectromechanical relay switches. A microelectromechanical relay switch comprises a beam configured to switch from a first position connected to an upper voltage source to a second position connected to a lower voltage source. The microelectromechanical relay switch further comprises at least one frequency isolation circuit or resistor disposed adjacent to the beam. The at least one frequency isolation circuit or resistor biases a direct current potential to allow for electrostatic actuation and further provides a path for transient electrical currents during switching.

公开(公告)号：US20230216469A1

公开(公告)日：2023-07-06

申请号：US17564110

申请日：2021-12-28

Applicant: Lawrence Livermore National Security, LLC

Inventor： Tammy Chang ,  Lars F. Voss ,  Joseph D. Schneider

IPC: H03H7/40 ,  H01P1/12 ,  H01P1/203

CPC classification number: H03H7/40 ,  H01P1/127 ,  H01P1/2039

Abstract: Disclosed are apparatuses and methods of tuning a radio frequency circuit using stub tuners and photoconductive switches. In one aspect an electromagnetic stub tuner apparatus is disclosed. the apparatus includes a transmission line, and a photoconductive switch positioned along the length of the transmission line. The photoconductive switch is configured to turn on or turn off, wherein an impedance of the transmission line is changed when the photoconductive switch is turned on compared to when the photoconductive switch is turned off. In another aspect, a method of tuning a radio frequency circuit is disclosed. In yet another aspect, a method of producing a radio frequency tuning circuit is disclosed.

公开(公告)号：US11476552B2

公开(公告)日：2022-10-18

申请号：US16565266

申请日：2019-09-09

Applicant: Jun Shen

Inventor： Jun Shen

IPC: H01P1/12 ,  H01H50/64 ,  H01H51/32 ,  H01H50/00 ,  H01H50/18 ,  H01H51/27 ,  H03K17/51 ,  H01P1/10

Abstract: A coaxial RF switch comprising a pair of coaxial conductors and a confinement flexure affixing to a conductor reed, wherein said confinement flexure having at least one fixed end such that the conductor reed can move freely and consistently to make and break the connections to the coaxial conductors.

公开(公告)号：US10984966B1

公开(公告)日：2021-04-20

申请号：US16838525

申请日：2020-04-02

Applicant: LOCKHEED MARTIN CORPORATION

Inventor： Lowell Kent Sherman ,  Bryan Charles Gundrum ,  Steve Todd Nicholas

IPC: H01H1/00 ,  H05K1/18 ,  H05K3/00 ,  B81C1/00 ,  H01P11/00 ,  H01P1/12 ,  B81B7/00 ,  H05K3/46

Abstract: A micro-electro-mechanical system (MEMS) transfer switch is disclosed. The transfer switch comprises a single-pole, N-throw switch section having N selectable switches. Each selectable switch of the N selectable switches has an input, a control terminal and an output. An electrically conductive line is coupled to each of the selectable switches of the N selectable switches. The transfer switch includes a single-pole, M-throw switch section having M selectable switches coupled to the conductive line, each selectable switch of the M selectable switches having an output, a control terminal and an input. The single-pole, N-throw switch section and the single-pole, M-throw switch section are packaged in a single micro-electro-mechanical system (MEMS) die. The N and M are numbers between two and eight and the N selectable switches and the M selectable switches are different switches.

公开(公告)号：US20200243938A1

公开(公告)日：2020-07-30

申请号：US16774374

申请日：2020-01-28

Applicant: Tesat-Spacecom GmbH & Co. KG

Inventor： Christian Arnold ,  Jean Parlebas ,  Matthias Herte

IPC: H01P1/12 ,  H01P3/06 ,  H01P7/06 ,  H01P5/08 ,  H01R9/05

Abstract: A switching device for connecting coaxial cables is specified. The switching device includes: a housing with at least two coaxial connectors; a switch rotor arranged in the housing such that it can be rotated about a longitudinal axis; and a first electrical connection, which passes through the switch rotor and in a predetermined position of the switch rotor capacitively couples a first coaxial connector and a second coaxial connector, thus creating an electrical connection between the first coaxial connector and the second coaxial connector.

公开(公告)号：US10666313B2

公开(公告)日：2020-05-26

申请号：US16161444

申请日：2018-10-16

Applicant: Qorvo US, Inc.

Inventor： Ali Tombak ,  Daniel Charles Kerr ,  Edward T. Spears

IPC: H04B1/48 ,  H03K17/693 ,  H01Q1/50 ,  H01P1/15 ,  H01P1/12

Abstract: Disclosed is radio frequency switch circuitry that includes a switch branch having a first branch terminal coupled to a first signal port and a second branch terminal coupled to a second signal port, and a branch control terminal, wherein the switch branch has both an on-state and an off-state to control passage of a radio frequency signal between the first signal port and the second signal port in response to a control signal applied to the control terminal. The radio frequency switch circuitry further includes an isolation inductor coupled between the first branch terminal and the second branch terminal such that the isolation inductor is in parallel with the switch branch, wherein the isolation inductor has a given inductance that provides resonance with a total off-state capacitance of the switch branch in the off-state at a center frequency of the radio frequency signal.

公开(公告)号：US20190319324A1

公开(公告)日：2019-10-17

申请号：US15953253

申请日：2018-04-13

Applicant: Roos Instruments, Inc.

Inventor： Mark ROOS ,  Rick RODRIGUEZ ,  Ray BEERS ,  James COCHRAN

IPC: H01P1/12 ,  H01P5/16

Abstract: A mechanical, M-to-N, reciprocating millimeter waveguide switch is provided, where M and N are integers. A mechanical, one-to-four, reciprocating millimeter waveguide switch is also provided, together with a method for switching millimeter waves from one input to one of four outputs is also provided.

公开(公告)号：US10340567B2

公开(公告)日：2019-07-02

申请号：US15917448

申请日：2018-03-09

Applicant: THALES

Inventor： Olivier Vendier ,  Raoul Rodriguez ,  Pierre-Yves Chabaud ,  Dominique Potuaud ,  Jérôme Battut ,  Johann Bornet ,  Thierry Adam ,  Jean-François Villemazet ,  François Grojean

IPC: H01P1/10 ,  H04B7/185 ,  H01P1/12 ,  H01H1/00 ,  H03K17/18

Abstract: A microwave switching device comprises: a switching matrix with M inputs and N outputs comprising at least one surface-mount microwave switch with ohmic contacts with at least one input and at least one output position; a control bus for the one or more microwave switches of the switching matrix; a telemetry bus for the M inputs; a telemetry bus for the N outputs; a bias tee positioned on each input of the switching matrix; and a bias tee positioned on each output of the switching matrix.

公开(公告)号：US10283829B2

公开(公告)日：2019-05-07

申请号：US15678103

申请日：2017-08-15

Applicant: South China University of Technology

Inventor： Xiu Yin Zhang ,  Jin-Xu Xu

IPC: H01P1/20 ,  G01R33/32 ,  H03H7/06 ,  H03H7/01 ,  H01P1/203 ,  H01P1/208 ,  H01P1/12 ,  H01P7/10

Abstract: A filtering switch based on dielectric resonator is disclosed which comprising a rectangular dielectric resonator, a metal cavity in which the dielectric resonator is located, a switch circuitry and a T-shape feeding line structure. The ON- and OFF-states of the filtering switch based on dielectric resonator are realized by controlling a coupling between the dielectric resonator and the feeding line structure. EM fields of the rectangular dielectric resonator and T-shape feeding line structure have been theoretically analyzed and utilized to guide the coupling control. The results have shown low ON-state loss, high power capability and high OFF-state isolation. Transmission zeros are generated at both sides of the passband by cross coupling between dielectric resonators or between feeding line structures and coupling line structures, resulting in high skirt selectivity.