Title :
A 3-to-8-GHz fast-hopping frequency synthesizer in 0.18-μm CMOS technology
Author_Institution :
Electr. Eng. Dept., Nat. Taiwan Univ., Taipei, Taiwan
fDate :
3/1/2006 12:00:00 AM
Abstract :
A frequency synthesizer incorporating one single-sideband (SSB) mixer generates seven bands of clock distributed from 3 to 8GHz with 1-ns switching time. An efficient frequency synthesizing technique producing balanced bands around one center frequency is employed, and the SSB mixer uses double degeneration topology to increase the linearity. Fabricated in 0.18-μm CMOS technology, this circuit achieves a sideband rejection of 37 dB while consuming 48 mW from a 2.2-V supply.
Keywords :
CMOS integrated circuits; MMIC mixers; frequency synthesizers; phase locked loops; 0.18 micron; 1 ns; 2.2 V; 3 to 8 GHz; 48 mW; CMOS technology; double degeneration topology; fast-hopping frequency synthesizer; phase-locked loop; sideband rejection; single-sideband mixer; ultra-wideband; Amplitude modulation; CMOS technology; Circuit synthesis; Circuit topology; Clocks; Frequency conversion; Frequency synthesizers; Phase locked loops; Power dissipation; Signal synthesis; Frequency synthesizer; phase-locked loop (PLL); single-sideband (SSB) mixer; ultra-wideband (UWB);
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2005.864120
