A Novel Tuning Method for Impedance Matching Network Based on Linear Fractional Transformation
A Novel Tuning Method for Impedance Matching Network Based on Linear Fractional Transformation
复制标题
一种基于线性分数变换的阻抗匹配网络调谐新方法
DOI:
10.1109/tcsii.2019.2931412
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发表时间:
2020-06
期刊:
影响因子:
--
通讯作者:
Tao Cao
中科院分区:
文献类型:
--
作者:
Botao Xiong;Lei Yang;Tao Cao
Correction of antenna impedance variation in real time with low cost is a challenge. We propose two criteria with the aid of linear fractional transformation (LFT) to fulfill the pre-requirements of binary search scheme. Compared with gradient descent-based algorithms, the convergence speed is improved from <inline-formula> <tex-math notation="LaTeX">${O(N)}$ </tex-math></inline-formula> to <inline-formula> <tex-math notation="LaTeX">${O({\mathrm{ log}}N)}$ </tex-math></inline-formula> at the cost of expensive impedance sensor. To reduce the hardware cost and computational complexity of feedback circuits, the binary search scheme is optimized so that only the detection of the sign of real part and imaginary part of <italic>S</italic><sub>11</sub> is required. As a result, compared with the impedance sensor, no analog to digital converters (ADCs) and digital calculations are required for the proposed feedback loop. In the end, the proposed scheme is validated with an electromagnetic simulation.
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影响因子:
1.1
作者:
Botao Xiong
通讯作者:
Botao Xiong
影响因子:
1.1
作者:
Botao Xiong;K. Hofmann
通讯作者:
Botao Xiong;K. Hofmann
DOI:
10.1109/imws2.2011.6027206
发表时间:
2011-09
期刊:
2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals
影响因子:
--
作者:
Soosul Hwang;Sung-Yong Hong
通讯作者:
Soosul Hwang;Sung-Yong Hong
DOI:
10.1109/rfic.2013.6569599
发表时间:
2013-06
期刊:
2013 IEEE Radio Frequency Integrated Circuits Symposium (RFIC)
影响因子:
--
作者:
D. Ji;Joo-Seong Jeon;Junghyun Kim
通讯作者:
D. Ji;Joo-Seong Jeon;Junghyun Kim
DOI:
10.1109/rfic.2017.7969005
发表时间:
2017-06
期刊:
2017 IEEE Radio Frequency Integrated Circuits Symposium (RFIC)
影响因子:
--
作者:
D. Nicolas;A. Serhan;A. Giry;T. Parra;E. Mercier
通讯作者:
D. Nicolas;A. Serhan;A. Giry;T. Parra;E. Mercier