A Concurrent Dual-Band and Dual-Mode Frequency Synthesizer for Radar Systems

作者：Tsai Yu Kai^*; Hsieh Yi Keng; Tsai Hung Yu; Chen Huan Sheng; Lu Liang Hung

来源：IEEE Transactions on Very Large Scale Integration (VLSI) Systems, 2018, 26(5): 945-957.

DOI：10.1109/TVLSI.2018.2799225

• Dual-band frequency synthesizer
• frequency chirp
• frequency-modulated continuous wave (FMCW) radar
• millimeter-wave (mm-wave)
• phase-locked loop (PLL)

A simultaneous dual-band dual-waveform frequency synthesizer suitable for radar applications is presented. By using a K-band integer-N phase-locked loop (PLL) in conjunction with a W-band frequency modulation loop, a K-band sinusoidal carrier and W-band frequency-modulated continuous-wave frequency chirp can be generated concurrently. Due to the single PLL architecture for dual-band signal generation, additional loop filter, phase frequency detector, and dividers are no longer required for reduced chip area and power consumption. Fabricated in a 90-nm CMOS process, the proposed circuit occupies an area of 1.26 mm x 1.675 mm and consumes a dc power of 67 mW from a supply voltage of 1.2 V.

• 出版日期2018-5
• 单位中国科学院电工研究所