Improved Broadband Matching Bound
Improved Broadband Matching Bound
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DOI：
10.1109/tap.2017.2748229
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发表时间：
2017-09
影响因子：
5.7
通讯作者：
D. Nie;B. Hochwald
中科院分区：
文献类型：
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作者：
D. Nie;B. Hochwald
在其中负载由源通过无源阻抗匹配电路驱动的射频系统中，可以获得匹配的带宽是有限的。Bode-Fano上界经常被用来找到这个极限。我们表明，绑定是松散的一些负载，因此，不能达到任何网络。我们提出了一个简单的方法来改善界，并给出了条件下，改进的界是紧的。改进的界限不需要额外的假设或条件，超出了用于Bode-Fano界限。应用程序的分析和数值负荷模型进行了演示。
In radio frequency systems where a load is driven by a source through a passive impedance matching circuit, the bandwidth over which match can be attained is limited. The Bode–Fano upper bound is often invoked to find this limit. We show that the bound is loose for some loads and, hence, cannot be attained by any network. We present a simple method to improve the bound and give conditions under which the improved bound is tight. The improved bound requires no additional assumptions or conditions beyond what is used for the Bode–Fano bound. Applications to analytical and numerical load models are demonstrated.