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A 79 GHz Phase-Modulated 4 GHz-BW CW Radar Transmitter in 28 nm CMOS
28nm CMOS工艺下79GHz相位调制雷达发射器，带宽4GHz，输出功率11dBm。
28nm CMOS, 0.9V, 121mW, 10%效率, 11dBm输出功率
毫米波雷达CMOS相位调制伪噪声序列高温稳定性
▸创新点1：79GHz相位调制技术（方法创新）。该论文首次在28nm CMOS工艺中实现了79GHz载波的相位调制，支持4GHz带宽，输出功率超过11dBm，满足了毫米波雷达的高频需求。
▸创新点2：2Gsps伪噪声序列调制（系统创新）。采用2Gsps的伪噪声序列进行调制，显著提升了雷达的抗干扰能力和测量精度，同时满足频谱掩模要求，杂散发射低于20dBc。
▸创新点3：高温下稳定工作（125°C）（电路创新）。该发射器在高达125°C的环境下仍能稳定工作，输出功率保持在7dBm以上，展现了出色的高温性能和可靠性。
▸创新点4：高效率设计（电路创新）。整体发射器功耗仅为121mW，效率超过10%，创下了同类设计的记录，显著降低了系统能耗。
Abstract
Millimeter-wave sensors p erform robust and accu- rate remote motion sensing. We propose a 28 nm CMOS Radar TX that modulates a 79 GHz carrier with a 2 Gsps Pseudo-Noise sequence. The measured modulated output power at 79 GHz in 4 GHz BW is higher than 11 dBm (27 C), while the spurious emissions are below 20 dBc, fully satisfying the spectral mask regulations. The output RF BW where we can lock the injec- tion-locked LO is 13 GHz. Overall, the TX draws 121 mW from a 0.9 V supply resulting in a record ef ficiency above 10%. More importantly, the TX is functional up to 125 C still providing more than 7 dBm output power over the same RF BW.