Implementation of Flat Gain Broadband Power Amplifier With Impedance Rotation Compensation
Implementation of Flat Gain Broadband Power Amplifier With Impedance Rotation Compensation
复制标题
具有阻抗旋转补偿的平坦增益宽带功率放大器的实现
DOI:
10.1109/access.2019.2892865
复制
发表时间:
2019-01
期刊:
影响因子:
3.9
通讯作者:
Wang Jianwei
中科院分区:
文献类型:
--
作者:
Meng Xiangyu;Yu Cuiping;Liu Yuanan;Wu Yongle;Wang Xiyu;Wang Jianwei
The conventional broadband impedance matching network in low-pass structure cannot present adequate broadband impedance rotation for the optimum broadband operation of the power amplifier (PA), resulting in performance variations and degradations. The underlying constraint is the phenomenon of opposite impedance rotation. Against such a backdrop, this paper presents a methodology using the band-pass topology to compensate the frequency-variable response of the PA. The CGH40010F from Cree is used to verify the effectiveness of this compensation method. The experimental results are in good agreement with the simulation. The proposed PA yields good gain flatness (±0.5 dB), input/output return loss (>13 dB), and high power added efficiency (>60 %) over the band from 1.7 to 2.7 GHz. After digital predistortion, the measured adjacent channel power ratio is about −55 and −50 dBc at ±5 and ±10 MHz offset when the PA is driven by 5- and 10-MHz WCDMA signals at 6.5 ~ 7 dB power back-off.
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DOI:
10.1049/piee.1964.0170
发表时间:
1964-06
期刊:
--
影响因子:
--
作者:
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通讯作者:
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DOI:
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发表时间:
1985-12
期刊:
IEEE Transactions on Circuits and Systems
影响因子:
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通讯作者:
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2011-12
期刊:
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影响因子:
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作者:
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通讯作者:
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DOI:
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发表时间:
1961-06
影响因子:
5.1
作者:
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通讯作者:
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DOI:
10.1109/tmtt.1960.1124801
发表时间:
1960-11
影响因子:
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作者:
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通讯作者:
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