A 20–25.5 GHz VCO using a new variable inductor for K band application

A 20–25.5 GHz VCO using a new variable inductor for K band application
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使用新型可变电感器的 20-25.5 GHz VCO,适用于 K 频段应用

DOI:
10.1088/1674-4926/34/12/125005
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发表时间:
2013
期刊:
Chinese Journal of Semiconductors
影响因子:
--
通讯作者:
Ren Junyan
Ren Junyan
中科院分区:
其他
文献类型:
--
作者:
Zhu Ning;Li Wei;Li Ning;Ren Junyan

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提出了一种新型变压器型可变电感器,以在高达 K 频段的频率下实现宽调谐范围。设计了可变电感器,并通过HFSS建立了直观的模型来分析其性能。详细地进行了大量的数学分析。采用台积电 0.13 μm CMOS 技术设计了使用所提出的可变电感器的 VCO 进行验证。 VCO 的频率调谐范围取决于所建议的可变电感器。 VCO 的相位噪声取决于 LC 谐振回路的质量(包括建议的可变电感器和变容二极管)。因此,采用特定的 AMOS 变容二极管来提高其品质因数。 VCO 在三个典型的 TSMC 制造角(TT、FF、SS)处进行仿真,以预测其测量结果。后仿真结果表明,VCO 实现了 20-25.5 GHz 的连续调谐范围。其在 1 MHz 偏移下的相位噪声结果在 19.6 GHz 和 25.5 GHz 调谐频率下分别为 -108.4 dBc/Hz 和 -100.5 dBc/Hz。 VCO 仅从 1.2 V 电源汲取 3 至 6 mA 电流。
A novel transformer-type variable inductor is proposed to achieve a wide tuning range at frequencies as high as K band. The variable inductor is designed, and an intuitive model is built to analyze its performance by HFSS. A lot of mathematical analysis is done in detail. A VCO using the proposed variable inductor is designed with TSMC 0.13 μm CMOS technology for verification. The frequency tuning range of the VCO depends on the proposed variable inductor. The phase noise of the VCO depends on the quality of the LC tank (including the proposed variable inductor and varactors). So a specific AMOS varactor is implemented to improve its quality factor. The VCO is simulated at three typical TSMC fabrication corners (TT, FF, SS) to predict its measure results. The post simulation results shows that the VCO achieves a 20–25.5 GHz continuous tuning range. Its phase noise results at 1 MHz offset are −108.4 dBc/Hz and −100.5 dBc/Hz respectively at the tuning frequencies of 19.6 GHz and 25.5 GHz. The VCO draws only 3 to 6 mA from a 1.2 V power supply.
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