A 0.05-to-10GHz 19-to-22GHz and 38-to-44GHz SDR frequency synthesizer in 0.13μm CMOS

Extensive research has been focused on generating LO signals for software-defined radios (SDRs) with ultra-wide tuning range over several frequency decades and sufficiently high spectrum purity to support diverse wireless standards. This work presents an integrated frequency synthesizer (FS) that is able to cover not only all the wireless standards from 47 MHz to 10 GHz including 14-band MB-OFDM UWB but also the 802.15.3c standard from 57 to 66 GHz.