A W-Band Signal Generation Using N-Push Frequency Multipliers for Low Phase Noise

作者：Kim Seong Kyun^*; Choi Chanki; Cui Chenglin; Kim Byung Sung; Seo Munkyo

来源：IEEE Microwave and Wireless Components Letters, 2014, 24(10): 710-712.

DOI：10.1109/LMWC.2014.2342873

• CMOS
• FMCW radar
• frequency multiplier
• harmonic rejection
• millimeter wave
• N-push
• phase noise
• W-band

A W-band frequency generation for FMCW radar application is presented. It cascades a ring based five-push multiplier and a push-push injection-locked oscillator for 10 times multiplication with a two stage power amplifier. The chip is fabricated in 65 nm CMOS technology and its size including ESD-protected pads is 860 x 620 itm. Phase noise of the output signal is 110 dBc/Hz at 1 MHz offset using the 7.8 GHz reference frequency with the phase noise of 132 dBc/Hz at 1 MHz offset. The output power of the complete circuit is larger than 8.8 dBm for the entire output locking range, and N-push technique enables unwanted spur suppression larger than 59 dBc. The total power consumption is 265 mW.

• 出版日期2014-10