基于对齐的碳纳米管的射频晶体管用于毫米波波段的振幅放大和频率转换
Jiale Qian1, Xiaohan Cheng2,3, Jianshuo Zhou2
1Hunan Institute of Advanced Sensing and Information Technology, Xiangtan University, Hunan 411105, China.
ACS nano
|July 19, 2023
概括
对齐的碳纳米管 (ACNTs) 证明了无线电频率 (RF) 电子的同时振幅放大和频率转换. 这些基于ACNT的设备在毫米波段实现了高性能,超过了其他纳米材料.
科学领域:
- 材料科学 材料科学 材料科学
- 电气工程 电气工程
- 纳米技术 纳米技术
背景情况:
- 对齐的碳纳米管 (ACNTs) 具有非常好的半导体性能,可用于射频 (RF) 应用.
- 以前的研究主要集中在切断频率上,忽视了其他基本的射频功能.
研究的目的:
- 探索基于ACNT的射频设备的振幅放大和频率转换能力.
- 为了证明毫米波 (mmWave) 电子中的同时双重功能.
主要方法:
- 使用ACNTs制造多指配置的射频晶体管.
- 用于30 GHz的放大和频率转换的设备性能的表征.
- 评估设备参数,包括切断频率,最大振荡频率,功率增益,带宽,转换增益和线性.
主要成果:
- 达到的切断频率>150 GHz和最大振荡频率>130 GHz.
- 证明了~7dB的功率增益与>40GHz的3dB带宽放大.
- 呈现出 -12.7至 -17 dB的转换增益,输入>25 dBm的线性为第三阶交点 (IIP3).
- 这两种功能在30 GHz实现同时运行,无需调或匹配辅助.
结论:
- 对于先进的射频电子,ACNT非常有前途,在放大和频率转换方面提供卓越的性能.
- 证明的双重功能和高性能指标为基于纳米材料的毫米波设备设定了新的基准.
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