A design of frequency synthesized RF-source for IEEE 802.1 la wireless access for 0.09 μm CMOS technology

A Multi-band Synthesizer suitable for 5 GHz IEEE 802.11a upper, middle and lower frequency bands has been designed and performance evaluated for fabrication using 0.09 μm CMOS technology. A fast 6μs settling time and superior -139.9dBc/Hz @ 1MHz offset phase noise have been observed by simulation. A linear VCO transfer characteristics has been observed over the frequency range. VCO outputs are in phase quadrature and 0.09 μm CMOS technology makes the design energy efficient.