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本文提出了一种紧凑的26/38GHz可重构双频低噪声放大器，采用基于变压器的极点-零点反转图像抑制技术，解决了窄带LO双混频中的镜像干扰问题。该LNA在26GHz和38GHz分别实现20dB和19dB增益、3.5dB和3.9dB噪声系数，镜像抑制比优于39dB和41dB，适用于5G毫米波通信。
Abstract This paper presents a compact 26/38GHz reconfigurable dual-band low-noise amplifier (LNA) for a narrow-LO dual-side mixing. By adopting a transformer-based pole-zeroinversion image-rejection technique, the LNA achieves 20dB and 19dB of gain, 3.5dB and 3.9dB noise figures at 26GHz and 38GHz, respectively. The image rejection ratios are better than 39dB and 41dB with an intermediate frequency of 6GHz. The fifth-generation (5G) communication technology utilizes millimeter-wave (mm-wave) spectrum to meet high-speed data transmission requirements. These 5G Frequency Range 2 (FR2) bands typically include the n257/n258/n261 and n259/n260 bands, which can be classified as a mm-wave low-frequency (LF) band (24.25 to 29.5GHz) and high-frequency (HF) band (37 to 43.5GHz). A large-scale multi-channel transceiver technology is the key to expanding mm-wave transmission distance and communication capacity. However, the
Jiaming Luo, Jincai Wen, Yuxia Wu, Xu Wang, Lingling Sun
Hangzhou Dianzi University, Hangzhou, China