An estimable stability method applied to power amplifier design

Su, Guodong; Sun, Lingling; Wen, Jincai; Wang, Huang; Yu, Zhiping; Zhang, Nan

doi:10.1109/edaps.2011.6213733

Cited by 3 publications

(4 citation statements)

References 7 publications

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“…Then use the S-parameter to derive the Y-parameter of the circuit, which can be more intuitive and simple to describe and calculate. 29,32…”

Section: Analysis and Design Of Stability Networkmentioning

confidence: 99%

“…Then use the S‐parameter to derive the Y‐parameter of the circuit, which can be more intuitive and simple to describe and calculate 29,32

Y_{FET} bold= ((), \begin{array}{c} Y_{bold-italicFET bold11} & Y_{bold-italicFET bold12} \\ Y_{bold-italicFET bold21} & Y_{bold-italicFET bold22} \end{array})

where

Y_{italicFET 11} goodbreak= \frac{((), 1 goodbreak- S {}_{italicFET 11}) ((), 1 goodbreak+ S_{italicFET 22}) + S {}_{italicFET 12}S {}_{italicFET 21}}{Z_{0} normalΛ}

Y_{italicFET 12} goodbreak= goodbreak- \frac{S {}_{italicFET 12}}{Z_{0} normalΛ}

Y_{italicFET 21} goodbreak= goodbreak- \frac{S {}_{italicFET 21}}{Z_{0} normalΛ}

Y_{italicFET 22} goodbreak= \frac{((), 1 goodbreak+ S {}_{italicFET 11}) ((), 1 goodbreak- S_{italicFET 22}) - S {}_{italicFET 12}S {}_{italicFET 21}}{Z_{0} normalΛ}

normalΛ goodbreak= (...)

…”

Section: Analysis and Designmentioning

confidence: 99%

“…26,27 Some articles have delved into studying the stability network of feedback amplifier circuits, analyzing resistance and capacitance components in detail. 7,29 Additionally, research focuses on developing new stability networks and technologies to enhance stability. 28,30,31 However, the most fundamental capacitor-resistor series network, which is widely used in current RF power amplifiers, has not been thoroughly explored in existing research.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, there is extensive research analyzing stability in different types of power amplifiers under various conditions and application scenarios 26,27 . Some articles have delved into studying the stability network of feedback amplifier circuits, analyzing resistance and capacitance components in detail 7,29 . Additionally, research focuses on developing new stability networks and technologies to enhance stability 28,30,31 .…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A Gallium Nitride (GaN) Doherty power amplifier chip design based on series RC stability network

Li,

Zhu,

Liu

et al. 2023

Circuit Theory & Apps

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SummaryThis paper presents Doherty power amplifier (DPA) based on gallium nitride (GaN) technology, incorporating a parallel grounded network with series RC elements in front of the carrier and peaking amplifiers to enhance circuit stability. In comparison to the traditional series network with parallel RC structure, this configuration effectively reduces the sensitivity of the stability factor K to the capacitance value within the stability network. Consequently, it mitigates the impact on various performance indicators such as gain and drain efficiency, addressing the issue of measurement performance deviation caused by inaccurate capacitance models in the simulation files, which is particularly crucial for DPA. As a result, the circuit exhibits improved consistency in design and processing. With full band stability, the DPA achieves a saturation output power of approximately 29.8 dBm at 28 GHz, a saturation efficiency of 38.2%, and a 6‐dB back‐off efficiency of 29.6%.

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“…Then use the S-parameter to derive the Y-parameter of the circuit, which can be more intuitive and simple to describe and calculate. 29,32…”

Section: Analysis and Design Of Stability Networkmentioning

confidence: 99%

“…Then use the S‐parameter to derive the Y‐parameter of the circuit, which can be more intuitive and simple to describe and calculate 29,32