@inproceedings{d2d43c5ae9b94a3bbef042b5e037cdd6,
title = "A Design of 9kHz-0.5GHz Low Noise Amplifier with High Gain and Smooth Flatness",
abstract = "An ultra-wide band (UWB) low noise amplifier (LNA) of bandwidth 9 kHz-0.5 GHz, gain more than 30 dB, flatness fluctuating in ±0.8 dB, noise-figure less than 3 dB and the input and output reflection coefficient is less than -12dB within the range of the bandwidth is designed and measured. This LNA utilizes parallel negative-feedback between the base electrode and the collector electrode with an inductance in series with a resistance to compensate the decrease of the high frequency gain. In addition, an inductance in series with capacitance (LC) circuit is used as the signal coupling path at the input of the amplifier and a boldsymbol\{pi\}-type attenuation network is used at the output port to improve the return loss respectively at the input and output ends of the amplifier. Compared with the traditional negative feedback amplifier circuit, the above improvement measures can improve gain-flatness and expand bandwidth obviously. Furthermore, this design adopt two stage cascade technology to achieve high gain and low noise figure. Simulation and measurement results are in excellent agreement.",
keywords = "gain-flatness, low noise amplifier, negative feedback, ultra-wide band",
author = "Jun Tang and Zhaowen Yan and Zhaoming Ning and Yaoxing Zhang and Yongcheng Zhao",
note = "Publisher Copyright: {\textcopyright} 2018 IEEE.; 12th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2018 ; Conference date: 03-12-2018 Through 06-12-2018",
year = "2018",
month = jul,
day = "2",
doi = "10.1109/ISAPE.2018.8634204",
language = "英语",
series = "2018 12th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2018 - Proceedings",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2018 12th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2018 - Proceedings",
address = "美国",
}