发明名称 |
System and method for controlling radio frequency transmissions from an electronic device |
摘要 |
The disclosure relates to an electronic circuit for attenuating harmonics in a power amplifier. The circuit comprises: a printed circuit board (PCB); a first electrical track in the PCB providing a connection from a high band power input terminal of the amplifier to a battery terminal; a first capacitor connected to the first track, the high band power input terminal and a ground reference in the PCB; a first high filter choke connected to the first track and to the terminal; a second electrical track connected to a low band power input terminal of the amplifier; a circuit implemented on the PCB and connected to an output terminal of the amplifier for an output signal from the amplifier, comprising a first filter and a low pass filter, the first filter connected to a 0 ohm resistor which is connected to the low pass filter.
|
申请公布号 |
US8362834(B2) |
申请公布日期 |
2013.01.29 |
申请号 |
US201213587386 |
申请日期 |
2012.08.16 |
申请人 |
RESEARCH IN MOTION LIMITED;ZHU LIZHONG;MANKARUSE GEORGE;CORRIGAN MICHAEL;XU JUN;NICKERSON KENT |
发明人 |
ZHU LIZHONG;MANKARUSE GEORGE;CORRIGAN MICHAEL;XU JUN;NICKERSON KENT |
分类号 |
H03F1/00;H03F3/04 |
主分类号 |
H03F1/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|