公开(公告)号：US20090231069A1

公开(公告)日：2009-09-17

申请号：US12049845

申请日：2008-03-17

申请人： Eric M. Mullen ,  Mark Whittington

发明人： Eric M. Mullen ,  Mark Whittington

IPC分类号： H01P1/22

CPC分类号： H03H7/24 ,  G01R13/0272

摘要： An attenuator circuit. The attenuator circuit includes a resistive divider coupled to a capacitive network including first and second capacitive dividers. The resistive divider is configured to perform an N:1 attenuation of a signal in a low frequency range. The first and second capacitive dividers are configured to perform an N:1 attenuation in the high frequency range that is a product of the attenuation provided by each (e.g., each performing an M:1 attenuation, where N=M×M, with the total attenuation of the capacitive dividers being N:1 where N=M×M). A variable capacitance divider is coupled in parallel with the second capacitive divider, and includes first and second variable capacitors that, when adjusted, change the high frequency attenuation of the attenuator circuit to match the value of the high frequency attenuation to that of the low frequency attenuation.

摘要翻译： 衰减器电路。 衰减器电路包括耦合到包括第一和第二电容分压器的电容网络的电阻分压器。 电阻分压器被配置为执行低频范围内的信号的N：1衰减。 第一和第二电容分配器被配置为在高频范围内执行N衰减，其是由每个衰减提供的衰减的乘积（例如，每个执行M = 1衰减，其中N = M×M，与总衰减 的电容分压器为N：1，其中N = MxM）。 可变电容分压器与第二电容分压器并联耦合，并且包括第一和第二可变电容器，其在调节时改变衰减器电路的高频衰减，以将高频衰减的值与低频衰减器的值相匹配 衰减。

公开(公告)号：US07626474B2

公开(公告)日：2009-12-01

申请号：US12049845

申请日：2008-03-17

申请人： Eric M. Mullen ,  Mark Whittington

发明人： Eric M. Mullen ,  Mark Whittington

IPC分类号： H03H7/24

CPC分类号： H03H7/24 ,  G01R13/0272

摘要： An attenuator circuit. The attenuator circuit includes a resistive divider coupled to a capacitive network including first and second capacitive dividers. The resistive divider is configured to perform an N:1 attenuation of a signal in a low frequency range. The first and second capacitive dividers are configured to perform an N:1 attenuation in the high frequency range that is a product of the attenuation provided by each (e.g., each performing an M:1 attenuation, where N=M×M, with the total attenuation of the capacitive dividers being N:1 where N=M×M). A variable capacitance divider is coupled in parallel with the second capacitive divider, and includes first and second variable capacitors that, when adjusted, change the high frequency attenuation of the attenuator circuit to match the value of the high frequency attenuation to that of the low frequency attenuation.

摘要翻译： 衰减器电路。 衰减器电路包括耦合到包括第一和第二电容分压器的电容网络的电阻分压器。 电阻分压器被配置为执行低频范围内的信号的N：1衰减。 第一和第二电容分配器被配置为在高频范围内执行N衰减，其是由每个衰减提供的衰减的乘积（例如，每个执行M = 1衰减，其中N = M×M，与总衰减 的电容分压器为N：1，其中N = MxM）。 可变电容分压器与第二电容分压器并联耦合，并且包括第一和第二可变电容器，其在调节时改变衰减器电路的高频衰减，以将高频衰减的值与低频衰减器的值相匹配 衰减。