Robustness filter based on one-dimensional topological insulator

Abstract

The robustness filter based on a one-dimensional topological insulator comprises a plurality of inductors, a plurality of first coupling capacitors, a plurality of second coupling capacitors and a plurality of third capacitors, the models of the first coupling capacitors, the second coupling capacitors and the third capacitors are the same, and the capacitance values of the first coupling capacitors and the second coupling capacitors are different. The first coupling capacitor and the second coupling capacitor are alternately connected to form a one-dimensional link, one inductor and one third capacitor are connected in parallel to form a resonator, one end of each resonator is connected between the first coupling capacitor and the second coupling capacitor, and the other end of each resonator is grounded. The robustness filter does not need any active device and has a natural anti-interference characteristic, that is, when the surrounding environment of the filter is greatly changed and the electrical characteristics of components are influenced, the passband characteristics of the filter are hardly influenced.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a robust filter based on a one-dimensional topological insulator. Background technique [0002] A topological insulator, an electronic material with an insulating interior and a conductive surface, has gained increasing attention in physical systems due to its unusual physical properties—namely, its natural robustness. Its discoverers discovered it in 2014 Received the Nobel Prize in Physics. The most striking physical property of topological insulators is their natural robustness, which can be realized without a feedback system and has high application value. However, due to its complex physical properties, this field is currently mainly in theoretical research. stage, has not yet been widely used in engineering fields such as aerospace, weapons and ships. [0003] Usually, the anti-jamming characteristic of the electronic system is realized by adopting an adaptive algorit...

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Problems solved by technology

However, this post method is usually disturbed by external noise such as power supply / ground, and is constrained by factors such as the saturation characteristics of the amplifier itself

[0004] In addition, existing analog filters (including high-frequency filters) are usually designed based on Butterworth or Chebyshev’s filter principles, which are sensitive to noise and the surrounding environment. When the parameters of the filter change, its Great changes in filter characteristics

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