← 返回 JSSC 论文列表JSSC 2012第9期RF & Wireless200 nm SiGe BiCMOS
A 620 GHz Adaptive SiGe Image Reject Mixer for a Self-Healing Receiver
一款具有自适应功能的620 GHz SiGe镜像抑制混频器，用于自愈接收机
转换增益>15 dB, 镜像抑制比>35 dB, 输出1dB压缩点>10 dBm
SiGe混频器自愈接收机镜像抑制自适应电路毫米波
▸创新点1：自适应镜像抑制技术（电路创新）。该技术通过动态调整镜像抑制滤波器参数，实现了超过35 dB的镜像抑制比（IRR），显著提升了混频器的抗干扰能力。
▸创新点2：自愈功能抵消工艺变化影响（系统创新）。通过自动化校准机制，混频器能够实时补偿工艺变化、环境变化或老化带来的性能偏差，确保输出1 dB压缩点始终大于10 dBm。
▸创新点3：多频段性能可调（系统创新）。混频器支持6–20 GHz宽频带工作，并可根据不同频段需求动态调整性能参数，如转换增益大于15 dB，满足多样化应用场景。
▸创新点4：低功耗设计（电路创新）。采用200 nm SiGe BiCMOS工艺，混频器在4 V供电下仅消耗215 mA电流，实现了高性能与低功耗的平衡。
Abstract
A wideband (6–20 GHz) Silicon-Germanium (SiGe)
adaptive image-reject mixer with an intermediate frequency (IF) of
1.8 GHz is presented. The mixer can be “self-healed” to deliver con-
sistent performance by nullifying the effects of process variations,
environmental changes, or aging . Various performance metrics of
the mixer can also be adapted to different specifications across mul-
tiple frequency bands. A conversion gain greater than 15 dB, an
image rejection ratio (IRR) exceeding 35 dB, and a