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A Reusable Superheterodyne Dual-Band Down-Conversion Mixer With Hybrid Linearity
提出一种双频段高线性下变频混频器，适用于5G毫米波非连续多频段操作。
IP1dB: 11.32/11.06/9.85 dBm, IIP3: 22.8/23.6/20.8 dBm, LO-to-RF隔离: >32.7 dBc, LO-to-IF隔离: >58.6 dBc
双频段高线性5G毫米波LO复用混合线性增强
▸LO复用技术实现双频段频谱转换
▸混合线性增强技术提高线性度
▸片上无源耦合网络实现阻抗匹配和信号转换
Abstract
This article presents a dual-band high-linearity
down-conversion mixer that covers the frequency range of 24–30
and 36–42 GHz and enables 5G millimeter-wave (mm-wave) non-
contiguous multiband operations in the major parts of the K - and
K a-bands. A reusable superheterodyne mixer with local oscillator
(LO)-reusable technique allows dual-band spectrum shifting.
A hybrid linearity-enhanced technique (HLET) is proposed to
improve linearity, which combines optimum bias, feedback,
and feedforward. O