There is an aggressive need for the rapid development of 5G based battery-powered, portable, wearable, wireless applications in the telecommunication industry. The battery-powered devices pose a critical challenge in processing higher data rates while achieving less distortion and low-power consumption. Hence, the problem of power-efficient distortion cancellation needs to be addressed to equip the 5G New Radio (NR) based portable, wearable wireless systems for better performance. This work addresses the problem by proposing a complementary post-distortion harmonic cancellation (CPDHC) technique to improve the linearity of the Mixer used in battery-powered wireless systems. In the proposed CPDHC method, the overall third-order transconductance of the input stage is reduced optimally by the overall third-order transconductance of the auxiliary transistors. This optimal reduction in third-order transconductance retards the growth of third-order harmonics in the circuit, thus improving the linearity performance of the Mixer circuit. From post-layout simulations, the current reuse based Mixer achieves an IIP3 of −6.823 dBm before linearization, and with linearization by CPDHC technique, the IIP3 is improved to 5.05 dBm, resulting in a spurious-free dynamic range (SFDR) of 66.03 dB for 100 MHz channel bandwidth. The CPDHC based Mixer contributes an integrated double-sideband noise figure (DSB-NF) of 12.57 dB and a peak gain of 14.36 dB while consuming 1.25 mW from a 1.2 V supply.

迫切需要在电信行业中快速开发基于5G的电池供电，便携式，可穿戴无线应用。电池供电的设备在处理更高的数据速率，减少失真和降低功耗方面提出了严峻的挑战。因此，需要解决功率有效失真消除的问题，以便为基于5G新无线电（NR）的便携式可穿戴无线系统配备更好的性能。这项工作通过提出一种补充的失真后谐波消除（CPDHC）技术来改善电池供电无线系统中使用的混频器的线性度，从而解决了该问题。在建议的CPDHC方法中，通过辅助晶体管的整体三阶跨导，可以最佳地降低输入级的整体三阶跨导。三次跨导的这种最佳降低会延迟电路中三次谐波的增长，从而改善混频器电路的线性性能。通过布局后的仿真，基于电流复用的混频器在线性化之前实现了-6.823 dBm的IIP3，通过CPDHC技术进行线性化后，IIP3提升至5.05 dBm，从而实现了66.03 dB的无杂散动态范围（SFDR） 100 MHz信道带宽。基于CPDHC的混频器贡献了12.57 dB的集成双边带噪声系数（DSB-NF）和14.36 dB的峰值增益，同时从1.2 V电源消耗1.25 mW。三次跨导的这种最佳降低会延迟电路中三次谐波的增长，从而改善混频器电路的线性性能。通过布局后的仿真，基于电流复用的混频器在线性化之前实现了-6.823 dBm的IIP3，通过CPDHC技术进行线性化后，IIP3提升至5.05 dBm，从而实现了66.03 dB的无杂散动态范围（SFDR） 100 MHz信道带宽。基于CPDHC的混频器贡献了12.57 dB的集成双边带噪声系数（DSB-NF）和14.36 dB的峰值增益，同时从1.2 V电源消耗1.25 mW。三次跨导的这种最佳降低会延迟电路中三次谐波的增长，从而改善混频器电路的线性性能。通过布局后的仿真，基于电流复用的混频器在线性化之前实现了-6.823 dBm的IIP3，通过CPDHC技术进行线性化后，IIP3提升至5.05 dBm，从而实现了66.03 dB的无杂散动态范围（SFDR） 100 MHz信道带宽。基于CPDHC的混频器贡献了12.57 dB的集成双边带噪声系数（DSB-NF）和14.36 dB的峰值增益，同时从1.2 V电源消耗1.25 mW。并通过CPDHC技术进行线性化，IIP3提升至5.05 dBm，从而在100 MHz信道带宽下实现了66.03 dB的无杂散动态范围（SFDR）。基于CPDHC的混频器贡献了12.57 dB的集成双边带噪声系数（DSB-NF）和14.36 dB的峰值增益，同时从1.2 V电源消耗1.25 mW。并通过CPDHC技术进行线性化，IIP3提升至5.05 dBm，从而在100 MHz信道带宽下实现了66.03 dB的无杂散动态范围（SFDR）。基于CPDHC的混频器贡献了12.57 dB的集成双边带噪声系数（DSB-NF）和14.36 dB的峰值增益，同时从1.2 V电源消耗1.25 mW。