A Low Power, 3.5-20GHz Tunable LNA with Out-Of-Band Blocker Filtering Based on Compact, Tunable Transmission Line (CTTL) Resonators in 65nm CMOS
A Low Power, 3.5-20GHz Tunable LNA with Out-Of-Band Blocker Filtering Based on Compact, Tunable Transmission Line (CTTL) Resonators in 65nm CMOS
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DOI：
10.1109/esscirc53450.2021.9567795
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发表时间：
2021-09
期刊：
影响因子：
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通讯作者：
Thomas Tapen;A. Apsel
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文献类型：
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作者：
Thomas Tapen;A. Apsel
我们提出了一种用于软件无线电的可调低噪声放大器，它基于紧凑的可调传输线(CTTL)元件。CTTL在共源低噪声放大器中充当无源、宽可调LC谐振，以实现瞬时窄带、多倍频程可调低噪声放大器。该电路采用65nmCMOS3.5~2 0 GHz可调，功耗12 mW，增益>；12分贝，≥-9.6dBV带内OP1分贝，OOB B 1分贝，比带内分贝高31分贝。CTTL调谐的LNA代表了一种更能容忍阻断器的方法，可以实现高频、软件定义的LNA，而不会对其他LNA性能指标造成重大影响。
We present a tunable LNA for software defined radio based on a compact, tunable transmission line (CTTL) element. The CTTL acts as a passive, widely tunable LC resonance in a cascoded, common source LNA to implement an instantaneously narrowband, multi-octave tunable LNA. The resulting circuit, fabricated in 65nm CMOS, is tunable from 3.5-20GHz, and consumes 12 mW with gain >12dB, ≥ -9.6dBV in-band OP1dB, and OOB B1dB up to 31dB higher than the in-band B1dB due to the CTTL-tuned LC filtering. The CTTL-tuned LNA represents a more blocker-tolerant approach to achieving high frequency, software-defined LNAs without significant compromises in other LNA performance metrics.