公开(公告)号：US08195102B2

公开(公告)日：2012-06-05

申请号：US12792681

申请日：2010-06-02

申请人： Manel Collados ,  Melina Apostolidou ,  Ravichandra Karadi ,  Gerard Villar Pique ,  Jan Van Sinderen

发明人： Manel Collados ,  Melina Apostolidou ,  Ravichandra Karadi ,  Gerard Villar Pique ,  Jan Van Sinderen

IPC分类号： H04B1/66

CPC分类号： H04L27/04 ,  H04L27/08 ,  H04L27/2032

摘要： A system and method for transmitting a baseband real signal with a non-constant envelope using a polar transmitter involves decomposing a baseband real signal into a non-constant envelope signal of the baseband real signal and a sign signal of the baseband real signal, where the sign signal restores zero crossing regions of the non-constant envelope signal, modulating a carrier signal with the sign signal of the baseband real signal to generate a modulated signal, converting the non-constant envelope signal of the baseband real signal into a voltage signal using a voltage controlled supply regulator, amplifying the modulated signal into an amplified signal based on the voltage signal, and transmitting the amplified signal to an external wireless device.

摘要翻译： 使用极性发射器发送具有非恒定包络的基带实信号的系统和方法包括将基带实信号分解为基带实信号的非常数包络信号和基带实信号的符号信号，其中 符号信号恢复非恒定包络信号的零交叉区域，用基带实信号的符号信号调制载波信号以产生调制信号，将基带实信号的非恒定包络信号转换成电压信号，使用 电压控制电源调节器，基于电压信号将调制信号放大为放大信号，并将放大的信号发送到外部无线设备。

公开(公告)号：US08228125B2

公开(公告)日：2012-07-24

申请号：US12734538

申请日：2008-11-10

申请人： Mark Peter Heijden ,  Dominicus Leenaerts ,  Melina Apostolidou

发明人： Mark Peter Heijden ,  Dominicus Leenaerts ,  Melina Apostolidou

IPC分类号： H03F1/22

CPC分类号： H03F1/223 ,  H03F1/0266 ,  H03F3/45188 ,  H03F2200/18

摘要： An electronic circuit has an amplifier with an amplifying transistor and a cascode transistor. A capacitive voltage divider applies a fraction of an RF signal swing from the drain of the cascode transistor to the gate of the cascode transistor, the fraction being determined by a ratio between capacitance values. In addition a bias voltage supply circuit is provided. The bias voltage supply circuit is configured to define a relation between an average gate voltage of the cascode transistor and an average drain supply voltage at the drain of the cascode transistor. This relation increases the average gate voltage with increasing average drain voltage, and the relation provides a non zero average gate voltage when extrapolated to zero average drain supply voltage.

摘要翻译： 电子电路具有放大器和放大晶体管和共源共栅晶体管。 电容分压器将来自共源共栅晶体管的漏极的一部分RF信号摆幅施加到共源共栅晶体管的栅极，该分数由电容值之间的比率确定。 此外还提供了偏置电压供应电路。 偏置电压供给电路被配置为限定共源共栅晶体管的平均栅极电压和共源共栅晶体管的漏极处的平均漏极电源电压之间的关系。 这种关系通过增加平均漏极电压来增加平均栅极电压，并且当外推到零平均漏极电源电压时，该关系提供非零平均栅极电压。