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- W4312359125 abstract "This paper presents a 24-44 GHz wideband highly linear and efficient class-AB 2-stacked power amplifier (PA) in 65-nm bulk CMOS process for 5G phased array applications. To boost the output power (POUT) and power added efficiency (PAE) a differential 2-stacked transistors with a higher supply (2V) is used. Cross-Coupled neutralization capacitors and shunt inductors are used at the intermediate nodes to improve the stability and PAE. In the proposed design, multiple techniques are used to achieve high efficient and high linear operation. First, the adaptive bias network (ABN), which is used to adaptively control the bias of the PA stage to increase the gain at high powers (GP), POUT, and enhance the back-off PAE, especially in modulations with high peak to average power ratio (PAPR) (i.e QAM). The second technique is adaptive RC feedback (AFB) which is used to improve the gain flatness (AM-AM) by reducing the feedback as power increases. Lastly, an adaptive capacitive linearizer (ACL) is introduced to improve the (AM-PM) distortion. Transformer-based matching techniques are used to obtain the wideband matching. The proposed PA achieves a saturated POUT of 22.3 dBm, OP1db of 21.75 dBm with GP of 11 dB, and PAEMax of 36%. The measured 6dB power back-off PAE is 26.9% and PAE at 9dB PBO is 19.5% at 24GHz." @default.
- W4312359125 created "2023-01-04" @default.
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- W4312359125 date "2022-08-26" @default.
- W4312359125 modified "2023-10-16" @default.
- W4312359125 title "A 24-44 GHz Highly Linear and Efficient mm-Wave Power Amplifier in 65-nm CMOS for 5G Phased Array Applications" @default.
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- W4312359125 doi "https://doi.org/10.1109/mape53743.2022.9935172" @default.
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