公开(公告)号：US07194241B2

公开(公告)日：2007-03-20

申请号：US10729028

申请日：2003-12-04

申请人： Norbert A. Schmitz ,  Mark N. Ayvazian ,  Philip H. Thompson ,  Edward F. Lawrence ,  Darryl E. Evans ,  David M. Johnson

发明人： Norbert A. Schmitz ,  Mark N. Ayvazian ,  Philip H. Thompson ,  Edward F. Lawrence ,  Darryl E. Evans ,  David M. Johnson

IPC分类号： H04B1/44

CPC分类号： H04B1/005 ,  H04B1/0053 ,  H04B1/0057 ,  H04B1/006 ,  H04B1/48

摘要： An exemplary antenna switching circuit comprises first, second, third and fourth switches. The first switch is activated by a first control signal for establishing a connection between a first transmit port and an antenna; the second switch is activated by a second control signal for establishing a connection between a second transmit port and the antenna; the third switch is activated by a third control signal for establishing a connection between a first receive port and the antenna; and the fourth switch is activated by the third control signal for establishing a connection between a second receive port and the antenna. With this arrangement, the first receive port and the second receive port are simultaneously connected to the antenna when the third switch and the fourth switch are activated by the third control signal.

摘要翻译： 示例性天线切换电路包括第一，第二，第三和第四开关。 第一开关由第一控制信号激活，用于建立第一发射端口和天线之间的连接; 所述第二开关由用于建立第二发射端口和所述天线之间的连接的第二控制信号激活; 第三开关由第三控制信号激活，用于建立第一接收端口和天线之间的连接; 并且第四开关被第三控制信号激活，以建立第二接收端口和天线之间的连接。 利用这种布置，当第三开关和第四开关被第三控制信号激活时，第一接收端口和第二接收端口同时连接到天线。

公开(公告)号：US20100002345A1

公开(公告)日：2010-01-07

申请号：US12166613

申请日：2008-07-02

申请人： James P. Young ,  Ken N. Warren ,  Edward F. Lawrence

发明人： James P. Young ,  Ken N. Warren ,  Edward F. Lawrence

IPC分类号： H02H9/00

CPC分类号： H01L27/0255 ,  H01L24/04 ,  H01L2924/14 ,  H02H9/046 ,  H01L2924/00

摘要： An electrostatic discharge (ESD)-protected radio frequency (RF) transceiver switching circuit includes two or more switchable RF transmit and receive port circuits, a diode-based ESD-protection circuit, and a voltage-dividing circuit. The voltage-dividing circuit, which can be a switching circuit, minimizes the number of diode devices needed to protect against ESD by dividing the voltage at the antenna node down to a lower voltage across the diode devices.

摘要翻译： 静电放电（ESD）保护的射频（RF）收发器切换电路包括两个或多个可切换的RF发射和接收端口电路，基于二极管的ESD保护电路和分压电路。 作为开关电路的分压电路通过将天线节点处的电压降低到二极管器件的较低电压来最小化防止ESD的二极管器件的数量。