A 0.7 to 1 GHz switched-LC N-Path LNA resilient to FDD-LTE self-interference at ≥40 MHz offset
A 0.7 to 1 GHz switched-LC N-Path LNA resilient to FDD-LTE self-interference at ≥40 MHz offset
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0.7 至 1 GHz 开关 LC N 路径 LNA,可抵抗 ≥40 MHz 偏移时的 FDD-LTE 自干扰
DOI:
10.1109/rfic.2017.7969071
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发表时间:
2017
期刊:
影响因子:
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通讯作者:
J. Craninckx
中科院分区:
文献类型:
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作者:
Gengzhen Qi;B. van Liempd;Pui;R. Martins;J. Craninckx
This paper proposes a self-interference-resilient LNA for the FDD-LTE covering 0.7 to 1GHz. It incorporates a switched-LC N-path network with gain-boosting and optimum-biasing techniques to enhance the out-of-band (OOB) linearity at ≥40MHz offset. Implemented in 0.18µm SOI CMOS, the LNA achieves >31.2dB output rejection, +26.2dBm (+8dBm) OOB-IIP3 (iB1dB) at ≥40MHz offset and 6.8dB blocker NF at +4dBm blocker power for the default mode, while consuming a reasonable power of 48.4 to 62.5mW. When reconfigured to high-rejection mode, the LNA offers a tunable cancellation notch improving the output rejection to >50dBc.