公开(公告)号：US20060094374A1

公开(公告)日：2006-05-04

申请号：US11301012

申请日：2005-12-12

申请人： John Olip

发明人： John Olip

IPC分类号： H04B1/40 ,  H04B7/00

CPC分类号： H03L7/185 ,  H03L2207/12 ,  H04B1/0075 ,  H04B1/0082

摘要： A phase locked loop (PLL) frequency synthesizer to produce a local oscillator signal for a transmitter for operation at a plurality of RF frequency bands that are disparate. The transmitter has an intermediate frequency that is a sizable fraction of the bandwidth of one or more of the RF bands. The transmitter includes at least one RF upconverter, each having a local oscillator input coupled to the frequency synthesizer.