Correction: Panchal et al. 3D FEM Simulation and Analysis of Fractal Electrode-Based FBAR Resonator for Tetrachloroethene (PCE) Gas Detection. Fractal Fract. 2022, 6, 491

Avanish Bhadauria from the Council of Scientific and Industrial Research–Central Electronics Engineering Research Institute (CSIR–CEERI), India, was not included as an author in the original publication [1]. The corrected Author Contributions statement appears here:

• Author Contributions: Conceptualization, B.P., A.B. and S.V.; methodology, B.P.; software, B.P.; validation, S.V., A.B. and B.P.; formal analysis, B.P., A.B. and S.V.; investigation, B.P., A.B. and S.V.; resources, B.P. and A.B.; data curation, B.P.; writing—original draft, B.P.; writing—review and editing, A.B. and S.V.; visualization, B.P.; supervision, A.B. and S.V.; project administration, A.B. and S.V. All authors have read and agreed to the published version of the manuscript.

In the original publication, there was a mistake in Figure 2. It has been changed into a single port to align with the simulation. The correct Figure 2 appears below:

In Section 3.2.3, page 7, the dimension was changed from 50 μm × 50 μm to 49 μm × 49 μm as the fractal electrode with a width of 1 μm which was implanted on the top electrode of FBAR. A correction has been made as follows:

A 49 μm × 49 μm area was selected for its high resonance frequency of 2.52 GHz and maximum sensitivity of 4.83 kHz/ppm.

Also, changes on units were made from kHz/ppb to kHz/ppm throughout Section 3.2.4. In Table 6 of Section 4, the unit in Column 5, Row 1 (Present Work) was changed from kHz/ppb to kHz/ppm.

The authors state that the scientific conclusions are unaffected. This correction was approved by the Academic Editors and the Editor-in-Chief. The original publication has also been updated.