公开(公告)号：US09156677B2

公开(公告)日：2015-10-13

申请号：US13764324

申请日：2013-02-11

Applicant: RF Micro Devices, Inc.

Inventor： Ruediger Bauder ,  Nadim Khlat ,  Julio Costa ,  Jonathan Hammond

IPC: H03F1/50 ,  B81B7/00 ,  H04W52/02

CPC classification number: B81B7/0022 ,  B81B2201/014 ,  B81C1/00976 ,  H01H59/0009 ,  H04W52/02

Abstract: Pilot switch circuitry grounds a hot node (an injection node) of a microelectromechanical system (MEMS) switch to reduce or eliminate arcing between a cantilever contact and a terminal contact when the MEMS switch is opened or closed. The pilot switch circuitry grounds the hot node prior to, during, and after the cantilever contact and terminal contact of the MEMS come into contact with one another (when the MEMS switch is closed). Additionally, the pilot switch circuitry grounds the hot node prior to, during, and after the cantilever contact and terminal contact of the MEMS disengage from one another (when the MEMS switch is opened).

Abstract translation: 导向开关电路将微机电系统（MEMS）开关的热节点（注入节点）接地，以在MEMS开关打开或关闭时减少或消除悬臂触点和端子触点之间的电弧。 在MEMS悬臂接触之前，期间和之后，导频开关电路将热节点接地，并且MEMS的端子接触彼此接触（当MEMS开关闭合时）。 此外，导频开关电路在MEMS的彼此脱离接合之前，之中和之后，以及MEMS的彼此脱离接合（当MEMS开关断开时）接地。

公开(公告)号：US20130314163A1

公开(公告)日：2013-11-28

申请号：US13900077

申请日：2013-05-22

Applicant: RF Micro Devices, Inc.

Inventor： Julio Costa

IPC: H03F3/193

CPC classification number: H03F3/193 ,  H03F3/191 ,  H03F3/211 ,  H03F3/245 ,  H03F2200/111 ,  H03F2200/318 ,  H03F2200/408 ,  H03F2203/21157 ,  H04B1/0057

Abstract: Combination circuitry includes a relatively small preamplifier and includes hybrid circuitry. The hybrid circuitry is configured to perform mode switching while also performing some amplification, thus allowing the relatively small preamplifier to be smaller than a conventional power amplifier. In one embodiment, the hybrid circuitry includes first series portion configured to amplify when ON, a first shunt portion, a second series portion configured to amplify when ON, and a second shunt portion. The first series portion may include: a first transistor; a first variable impedance in communication with a gate of the first transistor, wherein the first variable impedance is configured to receive a first transistor control signal; a second transistor in series with the first transistor; and a second variable impedance in communication with a gate of the second transistor, wherein second variable impedance is configured to receive a second transistor control signal.

Abstract translation: 组合电路包括相对小的前置放大器并且包括混合电路。 混合电路被配置为执行模式切换，同时还执行一些放大，从而允许相对小的前置放大器小于常规功率放大器。 在一个实施例中，混合电路包括第一串联部分，其被配置为当ON时放大，第一分流部分，被配置为在ON时被放大的第二串联部分和第二分流部分。 第一串联部分可以包括：第一晶体管; 与所述第一晶体管的栅极通信的第一可变阻抗，其中所述第一可变阻抗被配置为接收第一晶体管控制信号; 与第一晶体管串联的第二晶体管; 以及与第二晶体管的栅极通信的第二可变阻抗，其中第二可变阻抗被配置为接收第二晶体管控制信号。

公开(公告)号：US20130207714A1

公开(公告)日：2013-08-15

申请号：US13764324

申请日：2013-02-11

Applicant: RF MICRO DEVICES, INC.

Inventor： Ruediger Bauder ,  Nadim Khlat ,  Julio Costa ,  Jonathan Hammond

IPC: B81B7/00

CPC classification number: B81B7/0022 ,  B81B2201/014 ,  B81C1/00976 ,  H01H59/0009 ,  H04W52/02

Abstract: Pilot switch circuitry grounds a hot node (an injection node) of a microelectromechanical system (MEMS) switch to reduce or eliminate arcing between a cantilever contact and a terminal contact when the MEMS switch is opened or closed. The pilot switch circuitry grounds the hot node prior to, during, and after the cantilever contact and terminal contact of the MEMS come into contact with one another (when the MEMS switch is closed). Additionally, the pilot switch circuitry grounds the hot node prior to, during, and after the cantilever contact and terminal contact of the MEMS disengage from one another (when the MEMS switch is opened).

Abstract translation: 导向开关电路将微机电系统（MEMS）开关的热节点（注入节点）接地，以在MEMS开关打开或关闭时减少或消除悬臂触点和端子触点之间的电弧。 在MEMS悬臂接触之前，期间和之后，导频开关电路将热节点接地，并且MEMS的端子接触彼此接触（当MEMS开关闭合时）。 此外，导频开关电路在MEMS的彼此脱离接合之前，之中和之后，以及MEMS的彼此脱离接合（当MEMS开关断开时）接地。