Design and Analysis of an 8 mW, 1 GHz Span, Passive Spectrum Scanner With >+31 dBm Out-of-Band IIP3 Using Periodically Time-Varying Circuit Components
Design and Analysis of an 8 mW, 1 GHz Span, Passive Spectrum Scanner With >+31 dBm Out-of-Band IIP3 Using Periodically Time-Varying Circuit Components
复制标题
使用周期性时变电路元件设计和分析带外 IIP3 > 31 dBm 的 8 mW、1 GHz 跨度无源频谱扫描仪
DOI：
10.1109/jssc.2017.2697412
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发表时间：
2017
影响因子：
5.4
通讯作者：
S. Pamarti
中科院分区：
文献类型：
--
作者：
Neha Sinha;Mansour Rachid;S. Pavan;S. Pamarti
本文提出了一种基于混叠滤波原理的低功耗、高线性度的被动频谱扫描仪。该扫描器采用线性周期性时变电路，然后通过采样器实现从连续时间输入到离散时间输出的尖锐的表观滤波器。本文介绍了扫描仪的设计，并提供了一个分析的预期和测量的性能存在的电路非理想性。该扫描器可实现DC −1 GHz频谱扫描，功耗为8 mW，带外IIP3优于+31 dBm。
This paper presents a low power and highly linear passive spectrum scanner based on the filtering by aliasing principle. The scanner utilizes a linear periodically time-varying circuit followed by a sampler to achieve sharp apparent filters from a continuous-time input to a discrete-time output. This paper describes the design of the scanner and provides an analysis of the expected and measured performance in the presence of circuit non-idealities. The scanner enables a DC −1 GHz spectrum scan while consuming 8 mW of power, with an out-of-band IIP3 that is better than +31 dBm across the band.