High Efficiency D-Band Multiway Power Combined Amplifiers With 17.5–19-dBm Psat and 14.2–12.1% Peak PAE in 45-nm CMOS RFSOI
High Efficiency D-Band Multiway Power Combined Amplifiers With 17.5–19-dBm Psat and 14.2–12.1% Peak PAE in 45-nm CMOS RFSOI
复制标题
采用 45 nm CMOS RFSOI 的高效 D 频段多路功率组合放大器,具有 17.5–19dBm Psat 和 14.2–12.1% 峰值 PAE
DOI:
10.1109/jssc.2022.3145394
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发表时间:
2022
影响因子:
5.4
通讯作者:
Gabriel M. Rebeiz
中科院分区:
文献类型:
--
作者:
Siwei Li;Gabriel M. Rebeiz
This article presents fully integrated power amplifiers (PAs) with eight-way low-loss power combining for <inline-formula> <tex-math notation="LaTeX">$D$ </tex-math></inline-formula>-band applications in the GlobalFoundries CMOS 45RFSOI process. The eight-way power combining (four-way differential) common source (C.S.) and cascode amplifiers are implemented using four-stage differential PA unit cells as building blocks. The eight-way power combining network is composed of a four-way balun-short-transmission-line (balun-STL) combiner and a conventional quarter wavelength transmission line (QWL TL) combiner. The simulated two-stage eight-way combiner <italic>in situ</italic> (loaded) ohmic loss is only 1.1–1.4 dB at 130–150 GHz. The eight-way power-combining C.S. amplifier has a small-signal gain of 24 dB at 140 GHz with a 1.2-V supply and a 3-dB bandwidth of 131–150 GHz. The saturated output power (Psat) and output 1-dB compression point (OP<sub>1 dB</sub>) are 16.8–17.5 and 13–14.2 dBm at 130–150 GHz, respectively. The corresponding peak power-added efficiency (PAE) is 11.7%–14.2%. The eight-way power combining cascode amplifier achieves a small-signal gain of 24.8 dB at 135 GHz with a 3-dB bandwidth of 133–148 GHz. The corresponding Psat is 16.3–19 dBm at 125–150 GHz with a peak PAE of 6.5%–12.1%. To the best of our knowledge, these PAs achieve the highest Psat and OP<sub>1 dB</sub> at the <inline-formula> <tex-math notation="LaTeX">$D$ </tex-math></inline-formula>-band in CMOS.