Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Broadband Frequency and Spatial On-Demand Tailoring of Topological Wave
  Propagation Harnessing Piezoelectric Metamaterials   Recent studies have developed tunable topological elastic metamaterials to
maximize performance in the presence of varying external conditions, adapt to
changing operating requirements, and enable new functionalities such as a
programmable wave path. However, a challenge remains to achieve a tunable
topological metamaterial that is comprehensively adaptable in both the
frequency and spatial domains and is effective over a broad frequency bandwidth
that includes a subwavelength regime. To advance the state of the art, this
research presents a piezoelectric metamaterial with the capability to
concurrently tailor the frequency, path, and mode shape of topological waves
using resonant circuitry. In the research presented in this manuscript, the
plane wave expansion method is used to detect a frequency tunable subwavelength
Dirac point in the band structure of the periodic unit cell and discover an
operating region over which topological wave propagation can exist. Dispersion
analyses for a finite strip illuminate how circuit parameters can be utilized
to adjust mode shapes corresponding to topological edge states. A further
evaluation provides insight into how increased electromechanical coupling and
lattice reconfiguration can be exploited to enhance the frequency range for
topological wave propagation, increase achievable mode localization, and attain
additional edge states. Topological guided wave propagation that is
subwavelength in nature and adaptive in path, localization, and frequency is
illustrated in numerical simulations of thin plate structures. Outcomes from
the presented work indicate that the easily integrable and comprehensively
tunable proposed metamaterial could be employed in applications requiring a
multitude of functions over a broad frequency bandwidth.

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The categories of this paper are: q-fin
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The categories of this paper are: astro-ph
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The categories of this paper are: adap-org
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The categories of this paper are: eess
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
26
The categories of this paper are: bayes-an
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The categories of this paper are: stat
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-ex
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The categories of this paper are: alg-geom
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The categories of this paper are: q-bio
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The categories of this paper are: nucl-th
1
The categories of this paper are: cs
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The categories of this paper are: dg-ga